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Title:
ARRANGEMENT AND METHOD FOR COLLECTING AND SAVING MOVEMENT DATA OF PERSONS AND USE OF THE COLLECTED MOVEMENT DATA
Document Type and Number:
WIPO Patent Application WO/2017/118780
Kind Code:
A1
Abstract:
The object of the invention is an arrangement and a method for collecting and saving movement data of persons. Transmitters (10-12) comprising an individualized identifier are arranged to send data about themselves at a predetermined signal strength, and with a tracking device (14), such as with a smartphone, carried along with a person (13) the movement of the person inside a building is tracked and the time a person spends in each location is measured. The collected data are sent to a data storage (22) of a cloud server (20) for saving, processing and further use. The collected data can be used for the layout design of buildings, such as hospitals, and for planning working procedures.

Inventors:
KARVONEN SAULI (FI)
ÄKKIJYRKKÄ YRKKÖ (FI)
Application Number:
PCT/FI2017/050003
Publication Date:
July 13, 2017
Filing Date:
January 03, 2017
Export Citation:
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Assignee:
SKA-RESEARCH OY (FI)
International Classes:
G01C21/20; H04W4/029; G01S3/02; G01S5/02; G06K7/00; G06Q10/04; G07C9/00; G16H40/20; H04W4/33; H04W4/80
Domestic Patent References:
WO2014134572A12014-09-04
Foreign References:
US20150038171A12015-02-05
US20140274135A12014-09-18
US20080164998A12008-07-10
US20110068892A12011-03-24
GB2539180A2016-12-14
US20150038171A12015-02-05
US20140274135A12014-09-18
US20100262430A12010-10-14
Other References:
See also references of EP 3400418A4
Attorney, Agent or Firm:
SALOMAKI OY (FI)
Download PDF:
Claims:
CLAIMS

1. An arrangement for collecting and saving movement data of persons, which arrangement comprises

- short-range transmitters (10-12) disposed in predetermined locations, the transmitters being adapted to repeatedly send the same predetermined data about themselves, the data comprising an individualized identifier, at a predetermined signal strength, which is arranged to bound the own near field (10a) for each transmitter (10-12),

- a tracking device (14) of movement data, said device to be carried along with the person being tracked and being provided with a local data storage (18), which tracking device is arranged to receive and send data sent by the transmitters (10-12),

- an external data storage (22) for saving the data received and processed by a tracking device (14),

characterized in that the tracking device (14) of movement data is provided with at least

- first processing means (15) for detecting the near field (10a) of transmitters (10-12) on the basis of the signal strength of the data received from the transmitters (10-12),

- second processing means (17) for analyzing the data sent by the transmitter (10-12) having the near field (10a) in which the tracking device (14) is situated,

- an interface (16) for transmitting data between the first processing means (15) and the second processing means (17) .

2. Arrangement according to claim 1, characterized in that the short-range transmitters (10-12) are disposed at least in the immediate proximity of the routes and working spaces (l-9a) of the persons (13) being tracked.

3. Arrangement according to claim 1 or 2, characterized in that the short-range transmitters (10-12) are disposed in the inside spaces of a building for location tracking of persons in the building and persons moving about in it.

4. Arrangement according to claim 1, 2 or 3, characterized in that the short-range transmitters (10-12) are disposed in the room spaces (1-8) and in the corridor and lobby spaces (9, 9a) of a hospital for detecting the route data of persons (13) working in the building and the time they spend in each space (l-9a) .

5. Arrangement according to any of the claims presented above, characterized in that the predetermined near field (10a) of each transmitter (10-12) is formed on the basis of the strength of the signal received from the transmitter, and in that the near field (10a) is arranged to be activated when a tracking device (14) is in range of the near field (10a) .

6. Arrangement according to claim 5, characterized in that the first processing means (15) of a tracking device (14) are arranged to activate the near field (10a) of a transmitter (10-12) when the tracking device (14) is in range of the near field (10a) , and in that the second processing means (17) of the tracking device (14) are arranged to activate the listening method when the near field (10a) is activated.

7. Arrangement according to claim 6, characterized in that the listening method of the second processing means (17) is arranged to deduce on the basis of predefined rules whether a room visit has occurred, and if a room visit has occurred, the second processing means (17) are arranged to add the information about the room visit event to the local data storage (18) of the tracking device (14), from where the data added is arranged to be sent via a public data network (14a) to an external data storage (22) .

8. Arrangement according to claim 7, characterized in that information about a room visit event comprises at least a starting time and an ending time for when the room visit was verified, the identifier of the transmitter (10-12) that formed the near field (10a) and the identifier of the tracking device (14) that activated the room visit.

9. Arrangement according to claim 7, characterized in that the second processing means (17) of a tracking device (14) are arranged to start counting the time spent in a room space (l-9a) after the tracking device (14) has received two consecutive notifications of activation of the same near field (10a) .

10. Arrangement according to any of the preceding claims, characterized in that the transmitters (10-12) are Bluetooth beacons, the tracking device (14) is a smartphone functioning as a mobile terminal and the external data storage (22) is a database functioning on a cloud server (20), and in that the first processing means (15) and the second processing means (17) are applications installed in a smartphone.

11. Method for collecting and saving movement data of persons, in which method short-range transmitters (10-12) disposed in predetermined locations are used to repeatedly send the same predetermined data about themselves, the data comprising an individualized identifier, at a predetermined signal strength, and a tracking device (14) of movement data, said device to be carried along with a person, which tracking device is arranged to receive and analyze data sent by the transmitters (10-12) and to send data for saving in an external data storage (22), characterized in that the method comprises at least the following phases:

- the tracking device (14) of movement data is provided with first processing means (15) for receiving and preliminarily examining data sent by the transmitters (10-12), with second processing means (17) for further analyzing the preliminarily examined data and with a local data storage (18) for temporarily saving the analyzed data,

- the configuration data of the short-range transmitters (10-12) are saved in the initialization data storage (15a) of the tracking device (14) for initializing the interface (16) between the first processing means (15) and the second processing means (17), and

- the necessary data are saved in the arrangement for initializing the interface (22a) between the tracking device (14) and the external data storage (22) . 12. Method according to claim 11, characterized in that

- when taking a tracking device (14) into tracking use the operating environment of the tracking device (14) is set by initializing the interface (16) between the first processing means (15) and the second processing means (17) as well as the interface (22a) between the tracking device (14) and the external data storage (22), after which the first processing means (15) are set to listening mode to collect data sent by the transmitters (10-12), - when the strength of a signal received from some transmitter (10-12) exceeds a predetermined limit value for a near field (10a), the near field (10a) of the transmitter (10-12) in question is activated for the use of the tracking device (14),

- when the near field (10a) is activated, the listener method of the first processing means (15) is activated to call the second processing means (17) to analyze and deduce, on the basis of predefined rules, e.g. whether a room visit has occurred,

- when it is verified that a room visit has occurred, information about the room visit event is added to the local database of the data storage (18) of the tracking device (14) and monitoring is continued for detecting a new room visit event, and

- the data added to the data storage (18) of the tracking device (14) is sent at essentially regular intervals via a public data network (14a) to an external data storage (22) for saving and for further processing.

13. Method according to claim 11 or 12, characterized in that the information about a room visit event includes at least a timestamp, i.e. the time when a room visit was verified, the identifier of the transmitter (10-12) that formed the near field (10a) for determining the location, and the identifier of the tracking device (14) for determining the tracking device (14) visited the room.

14. Method according to claim 11, 12 or 13, characterized in that calculation of the duration of a room visit event is started after the second processing devices (17) of the tracking device (14) have received the second consecutive data item regarding activation of the near field (10a) of the same transmitter (10-12), and in that the duration is increased by the time passed as long as a consecutive data item regarding activation of the near field (10a) of the same transmitter (10-12) is received. 15. Method according to any of claims 11-14, characterized in that, on the basis of data collected with a tracking device (14), a first data table is created, which presents the time data of the movement data of persons that carried a tracking device (14), and a second data table, which presents the route data of the movement data of persons that carried a tracking device (14) .

16. Method according to claim 15, characterized in that the first data table and the second data table are preferably tables in Excel format.

17. Use of an arrangement according to claim 1 and/or of a method according to claim 11 for collecting the movement data of persons in the inside spaces of a building.

18. Use of an arrangement according to claim 1 and/or of a method according to claim 11 for collecting route data of employees in the inside spaces of a hospital for the purpose of the layout design of the hospital.

19. Use of an arrangement according to claim 1 and/or of a method according to claim 11 for collecting the movement data of persons in the inside spaces of a building for the purpose of the internal functional planning of the hospital.

Description:
ARRANGEMENT AND METHOD FOR COLLECTING AND SAVING MOVEMENT DATA OF PERSONS AND USE OF THE COLLECTED MOVEMENT DATA

The object of the invention is an arrangement as defined in the preamble of claim 1 and a method as defined in the preamble of claim 11 for collecting and saving movement data of persons, and also the use of the movement data presented in claims 17-19. In the present patent application a person refers typically to an employee, such as to e.g. a nurse, doctor, et cetera, but this patent application can use the term person to refer also to a patient or other individual whose movement it is desired to track.

The present invention relates mainly to an arrangement and a method, hereinafter referred to jointly as a solution, that enable the tracking of the movements of people, preferably within buildings, in such a way that information is acquired about the movement data of persons, which in this context is defined as information as to where in the inside spaces, e.g. in the rooms, corridors and lobbies, of a building each person being tracked moves and/or spends time at any given moment in time. Movement data comprises two main information items, namely a) route data and b) time data. Route data comprises information about in which sequence and how much a person being tracked traveled from rooms and spaces to other rooms and spaces. Route data is therefore so-called wherefrom-whereto data. Correspondingly time data comprises information about how much time a person being tracked has spent in each space. Time data expresses e.g. the time that a person being tracked has been in a certain room, corridor, lobby or other indoor space of a building in which the movement data of a person is tracked and collected. The time-linked location data acquired is utilized e.g. in the layout design of public buildings, such as of large hospitals, as well as in planning the internal functions and work arrangements of hospitals and other institutions comprising many personnel. The solution according to the invention functions e.g. as a tool with which a reliable answer can be given to the question of how the different spaces of a certain building complex, such as of a hospital, should be situated in relation to each other so that the efficiency of the functions to be performed in the spaces and work productivity would be as high as possible. Correspondingly, by means of the tool according to the invention it is possible in the case of already existing premises to reliably determine on what and in which space the work time of a person being tracked is spent, e.g. in hospitals it is possible to determine how much work time is devoted to value-adding nursing work and how much to written work done in an office. Functions and work tasks can, if necessary, be made more productive and more efficient as a result of the tracking,

Another problem, among others, e.g. in hospital environments is that improvements in hospital technology are increasing the amount of examination and treatment devices used, as a consequence of which the sizes of the various rooms in hospitals, e.g. the sizes of various treatment rooms, are increasing, in which case also walking distances between the rooms are becoming longer. This lowers the productivity of the work being carried out in hospitals.

There is no inexpensive and reliable way in solutions known in the art of collecting the aforementioned time-linked movement data. The only way to collect the aforementioned data, e.g. in hospitals, is to actively monitor a nurse and to manually mark down where the nurse goes to and uses his/her work time. In practice this is a localized operation and highly impractical, as well as being expensive because it ties up monitoring personnel. For analysis of the collected data, the data must be delivered separately to persons that are able to analyze the data reliably, presenting the additional problem of finding an appropriate analyst . United States patent specification no. US2015/0038171 Al discloses the monitoring of indoor traffic by tracking the movements of mobile devices. In the US patent a building is provided with wireless transmitters, such as WiFi transmitters, Bluetooth beacons or e.g. radio frequency identification tags (RFIDs), the locations of which are marked on an indoor map of the building. A mobile device inside the building can be located by means of satellite positioning, or by means of the aforementioned wireless transmitters, or by the combined use of these. In addition to position data, the solution according to the US specification enables the collection of time data and speed data for the location of a mobile device. On the basis of the data collected on the server, various average values are determined, by means of which users of mobile devices can be sent a range of auxiliary information, such as future waiting times at different locations. Also the auxiliary information determined is averaged, so with the solution according to the US specification it is not possible e.g. to accurately define the location of a mobile device and determine whether a certain mobile device has entered a room and how long the aforementioned mobile device has spent in the room. The accuracy of the solution according to the US specification is therefore not sufficient to ascertain whether a mobile device is inside or outside of a room. It is also not possible with the solution according to the US specification to collect data regarding how many times a person carrying a mobile device has moved between different rooms or spaces within a certain unit of time. Therefore it is also not possible to ascertain the flow volumes of people moving in a building between different rooms and/or spaces, so the data collected with the solution according to the US specification cannot be utilized e.g. in designing the layout of premises nor can it function as a tool for space planning and architectural design, whereas the solution according to the invention can.

The solution according to the invention has been developed mainly for developing an organization and business operation as well as for space planning on the basis of collected movement data. The solution according to the US specification, on the other hand, does not have this aim, but instead concentrates only on enriching the service experience of the end user of a smartphone .

The aim of the present invention is to eliminate the aforementioned drawbacks and to provide an inexpensive, functionally reliable and as far as possible discreet arrangement and method for collecting and saving the movement data of persons, preferably in the movements of people inside buildings or large building complexes. The arrangement according to the invention is characterized by what is disclosed in the characterization part of claim 1 and the method according to the invention is characterized by what is disclosed in the characterization part of claim 11. The use of the collected movement data is characterized by what is disclosed in claims 17-19, and other embodiments of the invention are characterized by what is disclosed in the other claims. The solution according to the invention for collecting and saving the movement data of persons comprises at least: short-range transmitters disposed in predetermined locations, the transmitters being adapted to repeatedly send the same predetermined data about themselves, the data comprising an individualized identifier, at a predetermined signal strength, which is arranged to bound the own near field for each transmitter; a tracking device of movement data, said device to be carried along with the person being tracked and being provided with a local data storage, which is arranged to receive data sent by the transmitters; and an external data storage for saving the data received and processed by the tracking device. What is characteristic of the solution according to the invention is that the device for tracking movement data is provided with at least: first processing means for detecting the near field of transmitters on the basis of the signal strength of data received from the transmitters; second processing means for analyzing the data sent by the transmitter having the near field in which the tracking device is situated; and an interface for transmitting data between the first processing means and the second processing means. One advantage of the solution according to the invention is reliable, inconspicuous and comprehensive collection of movement data. Another advantage is fast delivery of collected data to a server, from which persons performing an analysis obtain data for analyzing wherever they are in the world, in which case the analysis process can be concentrated e.g. in one location regardless of where in the world the data was collected. This enables, inter alia, reliable analysis that is inexpensive in cost and is as precisely targeted as possible. With the solution according to the invention, it is possible to collect the time spent by a person in a room or space being monitored with the desired accuracy, e.g. to within a second. In this case the solution produces precise data as to how the movement and presence of different people, e.g. the working hours of people doing a job, are distributed between different rooms and/or spaces. The premises of a certain organization, such as those of a hospital, are intended to realize and enable certain functions. By means of the solution according to the invention, design and development activities can be targeted at exactly those functions and premises in which the persons being tracked spend most time. The solution according to the aforementioned US patent specification no. US2015 / 0038171 Al, for example, is not capable of this.

Yet a further advantage is that the solution according to the invention can easily be applied also to e.g. collecting data on the movement of patients.

In the following, the invention will be described in greater detail by the aid of some examples of its embodiment with reference to the attached drawings, wherein

Fig. 1 presents a top view of one part of a building, e.g.

a hospital ward, in which the method and the arrangement according to the invention are in use,

Fig. 2 presents a simplified diagram of one arrangement according to the invention,

Fig. 3 presents a diagrammatic and simplified view of one device for tracking movement data, the device to be used in the arrangement according to the invention, Fig. 4 presents one method according to the invention as a simplified flowchart,

Fig. 5 presents a pie chart compiled on the basis of the data of the time data table regarding how much time one carrier of a tracking device has spent during the monitoring period in each space or room, and Fig. 6 presents a Pareto chart based on the data of the route data table, which shows the most traveled, i.e. higher-volume, routes between different rooms and spaces.

Fig. 1 presents a simplified view from above of one part of a building, e.g. a hospital ward, in which is used the method and the arrangement of the invention for collecting the movement data of persons. In this part of the building there are different rooms, such as rooms 1-6 for patients, a storeroom 7 and an office 8, as well as an access corridor 9 and a longitudinal corridor 9a with a lobby. In the situation presented by Fig. 1, one person 13 being tracked is in the lobby in front of the office 8, and he/she has a tracking device 14 to be used for the collection of movement data in the arrangement according to the invention along with him/her, either e.g. in a pocket or on a belt. Each tracking device 14 has its own individualized identifier, i.e. an ID code. In addition, wireless transmitters 10-12, such as e.g., Bluetooth beacons or corresponding short-range transmitter devices, are situated in the different rooms of the building. Disposed preferably in connection with the door of each room 1-8, e.g. in the door frame or near the frame of the door, are two transmitters 10, one on the hinge side of the door and one on the side of the opening edge of the door. The entry of a person being tracked into the rooms and his/her presence in the rooms is detected with the transmitters 10 situated in connection with the door. Additionally, corresponding wireless transmitters 11, 12 are disposed in other spaces of the building, e.g. in the access corridor 9, for detecting a person being tracked entering or exiting the ward.

Each transmitter 10-12 is arranged to wirelessly send information about itself repeatedly and at regular intervals using a suitable protocol, e.g. according to Bluetooth protocol, as mentioned earlier. A transmitter 10-12 sends e.g. its own individualized identifier, i.e. its ID code, at a pre-agreed frequency and signal strength, that attenuates as is known in the art as the distance traveled by the signal increases. The location information of each transmitter 10-12 is known on the basis of the individualized identifier.

A device 14 for tracking movement data, which can be e.g. a mobile terminal such as a normal smartphone, the device being carried along with a person 13, is arranged to receive the continuously repeated signal sent by transmitters 10-12, to preliminarily examine and analyze the aforementioned signal and to save the strength data of each acceptably received signal and the identifier of the transmitter 10-12 that sent the signal as inter-related time-dependent data in the local data storage of the tracking device 14 and also to deliver the saved data onwards to a data storage of an external database server as described in more detail hereinafter . It is sufficient that a tracking device 14 receives from a transmitter 10-12 just the individualized identifier of the transmitter 10-12 and signal strength data. Where a person being tracked has been and for how long can be deduced in a later analysis phase from this data. A tracking device 14 is provided with e.g. Bluetooth capability for receiving signals transmitted by the transmitters 10-12. For enabling tracking, each transmitter 10-12 has a near field 10a based on predetermined criteria, the near field being shown only in connection with the transmitters 10 fixed to the frames of the door of room 5 in Fig. 1 for the sake of clarity. Depending on the specifications, the near fields 10a of different transmitters 10-12 can partly overlap or not overlap .

Fig. 2 presents one arrangement according to the invention as a simplified diagram. An activated tracking device 14 is arranged to receive by means of Bluetooth protocol a signal repeatedly sent wirelessly at an agreed frequency by transmitters 10-12 and to send the data included in the signals at essentially regular intervals e.g. via a public data network 14a, such as the internet, to an external database server 20, which is preferably e.g. an external cloud server.

The database server 20 receives the data sent by the tracking device 14 via its receiving means 21, which transmit the data received to a data storage 22, such as a database, of the database server 20, the data storage having an interface 22a for enabling data reception. For processing the data, the database server 20 is provided with processing means 23, by means of which the stored data is convertible e.g. into different file formats for further processing. In addition, the database server 20 is provided at least with means 24 for sending the stored and/or processed data onwards for further processing, e.g. via a public data network 14a, such as the internet. The sending can be automatic or can occur by special request. In such a case the collected and saved data can e.g. be analyzed in the data analysis phase 25 regardless of where the collection point, saving point or analysis point are located.

Fig. 3 presents a diagrammatic and simplified view of one tracking device 14 of movement data to be used in the arrangement according to the invention. In addition to the normal functions provided in a mobile terminal, the tracking device 14 of movement data is provided with at least first processing means 15 for preliminarily analyzing, i.e. pre- examining, signals sent by the transmitters 10-12, using Bluetooth protocol and received by the tracking device 14, second processing means 17 for further analyzing the signals pre-examined by the first processing means 15, and a data storage 18, such as a local database, for temporarily saving the data processed by the second processing means 17. The first processing means 15 are arranged to control the tracking device 14 in such a way that the tracking device 14 continuously monitors the environment of the tracking device 14. The first processing means 15 and second processing means 17 can also be implemented e.g. as programs, such as smartphone applications, which are executed by the processor of the smartphone that is the tracking device 14. The first processing means 15 also comprise an initialization data storage 15a, in which the initialization data and settings data of the transmitters 10-12 are saved.

Additionally, the tracking device 14 is provided with communication means 19 for sending the analyzed data saved in the local database of the data storage 18 at pre-agreed intervals to the database of the data storage 22 of an external database server 20.

Between the first processing means 15 and the second processing means 17 is an interface 16, which is arranged to enable data transfer between the first processing means 15 and the second processing means 17 in such a way that the second processing means 17 detect the data sent by the first processing means 15 and are able to analyze said data in a predetermined manner.

Fig. 4 presents a simplified flowchart of one method according to the invention. When a tracking device 14 of movement data, e.g. a smartphone provided with Bluetooth capability and with first processing means 15 and with second processing means 17 according to the invention, is started in phase 26, the first phase of the method, i.e. the initialization phase 27 in which the operating environment of the tracking device 14 is set, is performed simultaneously. In such a case the interface 16 between the first processing means 15 and the second processing means 17 is initialized, in which initialization, inter alia, the first processing means 15 are informed of where in the operating environment the first processing means 15 are adapted to function and the first processing means 15 are simultaneously given the necessary permissions. Additionally, in connection with the initialization, the first processing means 15 are given configuration data regarding the initialization data storage 15a, in which are specified, inter alia, the signal strengths of the transmitters 10-12 and what distances these correspond to. The configuration data are used for identifying the transmitters 10-12 and for setting the near fields 10a. The near field 10a of a transmitter 10-12 is identified e.g. by the first processing means 15 based on the signal strength of the transmitters 10-12, which signal strength indicates the distance of the transmitter 10-12 from a tracking device 14. When the initialization has been performed and all definitions have been given to the first processing means 15, the first processing means 15 are set to listening mode, in which case the first processing means 15 start to collect data included in signals sent by the transmitters 10-12. In the initialization phase 27 the interface of the data storage 22, such as a database, of an external database server 20 is also initialized so that the database server 20 can receive the data sent by a tracking device 14 in the correct format .

When the initialization phase 27 has been performed, listening of the transmitters 10-12 is activated in phase 27a and continuous monitoring of signals sent by the transmitters 10-12 is started in the position information phase 28. The signals of all the transmitters 10-12 that arrive at the first processing means 15 of a tracking device 14 via a wireless local area network are preliminarily analyzed, i.e. pre-examined, by the first processing means 15. When the strength of a signal received from some transmitter 10-12 exceeds a predetermined limit value for a near field 10a, the near field 10a is activated for the use of the tracking device 14, which thus means that the first processing means 15 of the tracking device 14 detect that the tracking device 14 has entered an area in which the strength of the signal received from some transmitter 10-12 exceeds a predetermined limit value for a near field 10a, and they function according to the instructions given beforehand. This activation is performed in the first deduction phase 29.

When it is verified, in the first deduction phase 29, that the near field is activated, the transmitter 10-12 activates the listener method of the first processing means 15 to call in phase 30 the second processing means 17 to analyze and to deduce, in the analysis phase 31, on the basis of predefined rules, e.g. whether a room visit has occurred or not. If a room visit has occurred, information about the room visit event is added in phase 32 to the local database of the data storage 18 of the tracking device 14, from where the data added is sent at essentially regular intervals in phase 33 via a public data network 14a, such as the internet, to the database of the data storage 22 of an external database server 20. Information about a room visit event comprises at least a timestamp, i.e. when the room visit was verified, the identifier of the transmitter 10-12 that formed, i.e. activated, the near field 10a for determining the location of the transmitter 10-12, and the identifier of the tracking device 14, in order to ascertain which tracking device 14 has visited the room and how long it was in the room. The actual name of a person does not need to be determined in this phase. A timestamp comprises the starting time of a room event, i.e. a start stamp, and a final ending time, i.e. an end stamp. The duration of a room even is calculated from these times. A timestamp can just as well be the duration of a room event calculated directly from a start stamp and end stamp.

The collection, analysis and saving of the movement data of one person is continued according to the method described above for as long as the tracking device 14 is on and the monitoring function is activated. In phase 34 the tracking device 14 is extinguished, e.g. when the person being tracked finishes his/her work shift.

The solution according to the invention differs from what is known in the art inter alia in that a.) a number of people are simultaneously tracked b.) how much time each tracked person has spent in each space/room is measured, and c.) the sequence in which a person has moved from one space/room to another is measured. When a person 13 carrying a tracking device 14 along with him/her enters some room space, e.g. room 5, and the tracking device 14 receives the signal of the transmitter 10 in the room in question at a strength that activates the near field 10a, the arrangement assumes that the tracking device 14 is inside a room and starts the time counter and also produces a timestamp containing time data for the event. If the near field 10a of the same transmitter 10 is activated on the basis of the next signal received, data is saved in a different memory variable that the tracking device 14 is still in the same near field 10a and that a certain time has passed between these two receiving instances. If a further third consecutive received signal again activates the near field 10a of the same transmitter 10, the event is updated in this phase with only the end stamp containing time data. After this the event is updated with an end stamp for all consecutive signals received from the same transmitter 10 that activate the near field 10a. Updating of the end stamp is only discontinued when the signal being received comes for the first time from some other transmitter 10-12 activating a near field 10a.

A start stamp including time data and an end stamp including time data, in addition to the identifier of the transmitter 10-12 and the identifier of the tracking device 14, remain in the memory of the arrangement regarding the room event, on the basis of which data the duration of the room event in question is calculated, i.e. how long a person 13 with a tracking device 14 was in the room 5. The fact that the person 13 was specifically in room 5 is detected separately on the basis of the identifier of the transmitter 10-12. The position data of the transmitters 10-12 is saved separately, in which case the identifier of the transmitters 10-12 does not necessarily indicate to the arrangement directly in which room space l-9a each transmitter 10-12 is situated. On the other hand, it is the task of an external analyst to link the identifiers of the transmitters 10-12 to their locations when making his/her analyses on the basis of the data collected.

When the first near field 10a activated on the basis of the signal of some other transmitter 10-12 is detected, monitoring of a new room event is started. For starting the calculation of the time spent in a room space l-9a, therefore, at least two consecutive receipts of an activation notification of the near field 10a of the same transmitter 10-12 are needed.

The most important main features of the arrangement according to the invention are: Bluetooth beacons functioning as short-range transmitters 10-12, which are disposed in carefully selected predefined locations in the building in which the movement of people is tracked; a smartphone used as a tracking device 14, in which applications functioning as the first processing means 15 and as the second processing means 17 have been installed, the applications being executed by the processor of the smartphone; a predefined configuration file for forming an operating environment for the components of the arrangement; and a database functioning as the data storage 22 of an external server 20, such as a cloud server, in which the collected data are saved, and in which they are edited for further use, e.g. by forming data tables, such as Excel files, from them, from which data tables data is arranged to be acquired for the use of an analyst whenever and wherever in the world when data is analyzed e.g. for the layout design of a new hospital building, as well as for the functional planning, or other planning, of an old or new hospital .

Preferably two data tables can be produced with the solution according to the invention on the basis of the data collected with a tracking device 14, of which the first data table is a so-called time data table, which presents the time data of the movement data of persons, and the second data table is a so-called route data table, which presents the route data of the movement data of persons. Each data table is preferably e.g. a file in spreadsheet format, such as an Excel table and file. Table 1 presents a simplified example of the first row rows of one first data table, i.e. time data table, formed in this way.

Phone ID Room ID Entry Date Entry Time Exit Date Exit Time Stay Mins Stay Sees

+358405117837 Zone 42 20160530 17:02i5i 20160530 17:13:13 10 14

+358406117337 Zone 40 20160530 17:13:53 20160530 17:16:01 2 S

+358406117837 Zone 52 20160530 17:16:4i 20160530 17:23:52 7 i

+358406117037 Zone 35 20160530 17:24:04 20160530 17:24:24 0 20

+358406117837 Zone 51 20160530 17:24:32 20160530 17:24:44 0 12

+358406117837 Zone 52 20160530 17:25:36 20160530 17:26 46 1 10

+358406117837 Zone 35 20160530 17:2§:3§ 20160530 17:39:25 9 46

+35B40S117837 Zone 38 20160530 17:53:ie 20160530 17:54:3i 1 23

+358406117837 Zone 52 20160530 17:55:06 20160530 17:56:06 1 0

+358406117837 Zone 51 20160530 17:5i:49 20160530 18:00:42 3 53

+358406117837 Zone 35 20160530 18:16:32 20160530 18:31:08 14 36

+358406117837

Table 1

Table 1 thus presents only the first rows of the time data table. Typically there are thousands of rows in a time data table, each of which rows has time data about one room visit or space visit. In Table 1 Phone ID refers to the individualized identifier of a tracking device 14, Room ID refers to the individualized identifier of the transmitter 10-12 in a room or in some space being monitored, Entry Date refers to the date when observation of the data started and Entry Time refers to the time of day when observation of the data started. In this case e.g. a person carrying a tracking device 14 has come into the near field 10a of the transmitter 10-12 indicated by Room ID.

Correspondingly, Exit Date means the date when observation of the data ceased and Exit Time means the time of day when observation of the data ceased. The Stay Mins and Stay Sees columns of Table 1 refer to how many minutes and seconds a person carrying a tracking device 14 stayed in a certain space or room.

Thus from row 1 of Table 1 it can be seen that the person carrying the tracking device 14, which has the ID code +358406117837, entered space or room 42 (Zone42) on 30 May 2016 at 17:02:59 hours and exited the same space or room on the same day at 17:13:13 hours, in which case the aforementioned person stayed in the space or room 42 in question at total of 10 minutes 14 seconds. Time data here is measured and stated to an accuracy of one second, in which case the movement and time usage of a person being tracked is obtained with sufficient accuracy.

By means of the data of the time data table, information regarding how much time each carrier of a tracking device 14 has spent in each space or room during the monitoring period is compiled for functional and other planning purposes. This information is presented as a pie chart in Fig. 5. It can be seen from the graph according to Fig. 5 that a carrier of a certain tracking device 14 has during the monitoring period been in the space Zone 35 for 31% of his/her time, in spaces Zone 41-Zone 52 for 26% of his/her time, in spaces Zone 24- Zone 36 for 23% of his/her time, in space Zone 38 for 11% of his/her time, and in space Zone 11 for 9% of his/her time. Table 2 presents a simplified example of the first rows of another data table, i.e. route data table, formed by means of the data collected.

Table 2

By means of the data of the route data table, information about how many times different people have moved between different rooms or spaces (Zone) during the monitoring period is acquired for the purposes of layout design. For example, there were altogether 65 visits from room or space 42 (Zone 42) to room or space 40.

The data of the route data table are so-called wherefrom/whereto data, which are preferably presented as a Pareto chart, one example of which being presented as the chart of Fig. 6. The Pareto graph according to Fig. 6 shows the most traveled, i.e. higher-volume, routes between different rooms and spaces. Those rooms between which there is heavy traffic should be situated closest to each other. This affects the shape of a building being designed and also the need to plan completely new room solutions and space solutions . In the Pareto chart in Fig. 6 there is the name of a route on the horizontal axis (Route) and quantity data on the vertical axis (Quantity) on the left-hand side describing how many of the aforementioned routes were travelled during the monitoring period. The vertical axis on the right-hand side shows the cumulative percentage of all the routes traveled during the monitoring period. The cumulative percentage is presented in the graph with the curve 36.

The number of routes traveled between different points is presented as the length of the route pillars 35. For example, the first pillar, which applies to the route from space or room 52 (Z52) to space or room 35 (Z35) shows that the aforementioned route has been traveled a total of 320 times, whereas the route represented by the second pillar from space or room 35 to space or room 52 (Z35) has been traveled a total of 299 times, and so on. The curve 36 representing cumulative percentage shows that the number of movements represented by the first pillar corresponds to approx. 16% of all the movements saved during the monitoring period. When the number of movements represented by the second pillar is also taken into account, the sum total of movements accounts for approx. 30% of all movements recorded during the monitoring period. At the point of the pillar presented by reference number 35a, the number of movements presented up until then already corresponds to approx. 65% of all the movements recorded during the monitoring period and the combined total movements of all the pillars 35 represented in the graph corresponds to approx. 80% of all the movements recorded during the monitoring period. The Pareto chart presented in Fig. 6 thus includes the most used routes, i.e. approx. 20% of the routes, which represent approx. 80% of all movements between spaces or rooms.

By means of the solution according to the invention it is possible on the basis of the route data collected with tracking devices 14 to compile statistics on how large are the volumes of flows of people between different rooms and/or spaces. Architects and other layout designers use these statistics in making decisions in such a way that they situate the rooms and/or spaces with the highest volume of people flow between them most closely together.

It is obvious to the person skilled in the art that different embodiments and applications of the invention are not limited to the example described above, but that they may be varied within the scope of the claims presented below. Thus, for example, instead of the aforementioned Bluetooth beacons, or together with them, other short-range transmitters can be used, such as wireless transmitters based on their UNW, WiFi, WiMAX or RFID protocol. In addition, laser light sources can be used, which can be disposed e.g. in the doors and/or in the rooms and/or in the other spaces of a building alongside the aforementioned wireless transmitters or other positioning technology.