Method of defining zones in a space managed by a space management device

Abstract

One aspect of the invention relates to a computer-implemented method (2) for defining a zone in a space (E), at least one metric of the space (E) being managed by a space management device (10), the method (2) comprising the steps of: Receiving (21) the position (Pos1,…,Pos5) of a user in the space (E) detected by the space management device (10),When (22) the position (Pos1,…,Pos5) of the user is outside an existing zone (Z1, Z6) and is at a distance less than a threshold (R1) from at least one predefined remarkable point (PR1,…,PR7) of the existing zone (Z1, Z6):Defining (23) a new zone (Z2,…,Z5,Z7) of the space (E) from the predefined remarkable point (PR1,…,PR7), the zone of the space (E) being defined between the remarkable point (PR1,…,PR7) and a final position (PF1,…,PF5) of the user after the user has moved. Figure to be published with the abstract: Figure 7

Description

Title of the invention: Method for defining zones in a space managed by a space management device TECHNICAL FIELD OF THE INVENTION

[0001] The technical field of the invention is that of space management.

[0002] The present invention relates to a method of defining zones in a space and in particular a computer-implemented method of defining zones in a space managed by a space management device. TECHNOLOGICAL BACKGROUND OF THE INVENTION

[0003] With the development of co-working spaces (also called "co-working" in English) and "flex offices" (also called "flex office" in English), a need has arisen to manage spaces in an automated manner, and in particular work spaces, for example offices.

[0004] To achieve automatic management, some spaces are equipped with space management devices. These devices make it possible to manage a set of space metrics, for example its ventilation, its temperature, or its occupancy. The devices for managing the occupancy of a space are often positioned on the ceiling of the managed space, and include an element for counting and / or obtaining the position of the users of the space within the space. For example, some space management devices include an imager, such as a camera, an infrared motion detector, or any sensor for obtaining the position of a user of a space within the space.

[0005] To best manage the space, these devices are configured to transmit the information they measure to a computer program, for example an application, the computer program making it possible to reserve the space for a time slot, and to check the occupancy of the space, for example in real time, using the occupancy information obtained from the space management device. For more detailed space management, these programs are configured to be able to define zones of the managed space, and thus manage the different zones of the space, for example groups of desks in a room. The space management device can monitor the presence and number of people in each zone. The space management device can also monitor metrics independent of the zones, i.e. applying to the entire space managed by the space management device.For example, the space management device may manage the temperature of the space, as well as other metrics of the space, by actuating means capable of modifying the metric.

[0006] To define zones, computer programs use the location of an existing user obtained by one or more space management devices. For this, a starting point of the zone is defined by an initial position of the user. One or more other points of the zone are then defined following the movement(s) of the user. For this, the user moves from a first point to a second point, and a shape extending between these two points is then a zone. For example, a rectangular or square-shaped zone can be defined by two positions of the user: his initial position and his final position, thus creating two opposite points forming one of the two diagonals of the zone, thus defining the rectangular or square zone. The terms "initial" and "final" refer to the geographical positions of the user in the managed space during a predefined time window of zone definition.Thus, the user configures the delimitation of the area of interest by configuring shapes on a representation of the space in which its position, obtained by the space management device, is represented. The user can then delimit the areas of interest and the exclusion zones. An exclusion zone is an area that the space management device does not have to manage or for which an instruction relating to a metric or a set of metrics does not have to be applied by the space management device. The area or areas thus created and the position of the user can be displayed on a mobile device of the user, for example a smartphone, or on a computer or any other user interface.

[0007] In the case of configuration of adjacent areas of interest or exclusion, there is a risk that certain parts of the managed space are not included in the areas configured by the user. Indeed, user positioning errors due to the accuracy of the positioning by the space management device and / or movements of the user after the definition of a first area and before the definition of a second area can lead to the creation of a gap between the areas. This gap is then a part of the space that will not be managed by the space management device, which poses a problem because the space is not entirely managed by the space management device.

[0008] There is therefore a need to facilitate the configuration of delimitation of adjacent zones in a space managed by a space management device, in the field of space and lighting management in tertiary and residential buildings. Summary of the invention

[0009] The invention offers a solution to the problems mentioned above, by making it possible to avoid gaps between zones by modifying the initial point when creating a zone.

[0010] One aspect of the invention relates to a computer-implemented method of de finishing areas in a space, at least one metric of the space being managed by a space management device, the method comprising the steps of: • Receiving a user's position in the space detected by the space management device, • When the user's position is outside an existing zone and is at a distance less than a threshold from at least one predefined notable point of the existing zone: • Definition of a new area of space from the remarkable point, the area of space being defined between the remarkable point and a final position of the user after the user has moved.

[0011] Thanks to the invention, the configuration of adjacent zones by movement of the user is facilitated, and the creation of spaces between the configured zones is prevented. Indeed, by implementing the method according to the invention, the starting point for the creation of a new zone is a predefined remarkable point of an existing adjacent zone close to the position of the user at the time of creation of the new zone, and not the position of the user detected by the space management device. Thus, as long as the user has a position close to a predefined remarkable point of an existing zone, "close" being understood as "at a distance less than a predefined distance", there is no gap between two zones less than the adjacent predefined distance, regardless of the position of the user.This predefined distance can be called the "snap tolerance", where snapping is the replacement of the user's position with the notable point as the starting point of the new area.

[0012] In addition to the characteristics which have just been mentioned in the preceding paragraph, the method according to one aspect of the invention may have one or more complementary characteristics among the following, considered individually or according to all technically possible combinations: • the predefined remarkable point is at least one of the following remarkable points: • a summit of the existing zone, • a projection of the user's position onto an edge of the existing area, • the center of an edge of the existing zone. • the position of the user is outside a plurality of existing zones and is at a distance less than a threshold of at least one predefined remarkable point of each existing zone of the plurality of existing zones, and according to which the definition of the new zone of the space is carried out from the predefined notable point of the existing area among the plurality of existing areas for which the user's position is at the shortest distance from the notable point of the existing area, • the managed metric is the temperature, lighting and / or occupancy of at least one area of the space, • the space management device is placed on the ceiling of the space or on a wall of the space, • the space management device detects the position of the user by imaging and the user is located in a part of the space imaged by the space management device, • the space management device comprises at least one imager for detecting the position of the user by imaging, the part of the space imaged by the space management device being a field of vision of the camera, • the user confirms the definition of the new zone via a user device, • the new area of space from the predefined remarkable point has a shape defined by a point cloud, the points of the point cloud being defined by a succession of user positions, • at least one point in the point cloud of the new area of space other than the predefined remarkable point from which the new area is defined is another predefined remarkable point.

[0013] Another aspect of the invention relates to a computer program product comprising instructions which, when the program is executed by a computer, cause the latter to implement the method according to the invention.

[0014] Another aspect of the invention relates to a computer-readable recording medium comprising instructions which, when the program is executed by a computer, cause the latter to implement the method according to the invention.

[0015] The invention and its various applications will be better understood by reading the following description and examining the accompanying figures. BRIEF DESCRIPTION OF THE FIGURES

[0016] The figures are presented for information purposes only and in no way limit the invention. • [Fig.l] shows a schematic representation of a room comprising a space, • [Fig.2] shows a schematic representation of a space managed by a space management device, • [Fig.3] shows a schematic representation of a user's position in a space managed by a space management device, • [Fig.4] shows a schematic representation of an area created in a space managed by a space management device, • [Fig.5] shows a schematic representation of a method according to the invention, • [Fig.6] shows a schematic representation of the result of the invention compared to the prior art, • [Fig.7] shows another schematic representation of the result of the invention compared to the prior art, • [Fig.8] shows a schematic representation of the creation of an area adjacent to an existing area according to the invention, • [Fig.9] shows another schematic representation of the creation of an area adjacent to an existing area according to the invention, • [Fig. 10] shows a schematic representation of the creation of an area adjacent to an existing area from a first notable point of the existing area according to the invention, • [Fig.l 1] shows a schematic representation of the creation of an area adjacent to an existing area from a second notable point of the existing area according to the invention, • [Fig. 12] shows a schematic representation of the creation of an area adjacent to an existing area from a third notable point of the existing area according to the invention, • [Fig. 13] shows a schematic representation of the selection of an initial point for the creation of an area adjacent to several existing areas according to the invention, • [Fig. 14] shows a schematic representation of the creation of a zone adjacent to several existing zones according to the invention • [Fig. 15] shows the use of a point cloud for the creation of an area according to the invention. DETAILED DESCRIPTION

[0017] Unless otherwise specified, the same element appearing in different figures presents a unique reference.

[0018] [Fig.l] shows a schematic representation of a room comprising a ceiling and a floor, a space management device 10 being mounted on the ceiling, and a plurality of tables 11 to 13 being placed on the floor. The tables 11 to 13 are for example desks. [Fig.l] presents an example of a room in which a space is managed by the space management device 10, but the invention applies to any space managed by a space management device 10, whether this space is indoors and / or outdoors. outside.

[0019] The space management device 10 can be positioned on the ceiling, on a wall, on the floor or on any other surface of the environment comprising the space that it manages. The space management device 10 makes it possible to manage a space E shown in [Fig.2]

[0020] [Fig. 2] shows a schematic representation of a space managed by a space management device 10, in the room of [Fig. 1]. Space E comprises six tables 11 to 16, represented by an oval shape. The tables may be, for example, desks. Space E is only one example of a space that can be managed by a space management device 10, and the invention covers any type of space E that can be managed by such a device 10.

[0021] A space E is said to be “managed by a device 10” when the device 10 can control a system acting on a metric of the space E. A metric of the space E is for example the ventilation, the temperature, the occupancy of the space E. The occupancy of the space E can be expressed as a percentage relative to the maximum occupancy, or as a number of people, i.e. as a number of users of the space E. To control a metric of the space E, the device for managing the space E has access to a measurement of the metric of the space E, either preferentially because it measures it via a sensor that it includes, or by receiving the measurement from an external device, for example via a network.

[0022] Preferably, and in the remainder of the description, the space management device 10 comprises a presence sensor, capable of measuring the occupancy of the space E, and therefore of counting the number of users of the space E at a given time. The space management device 10 comprises for this purpose an imager, capable of acquiring an image of at least a portion of the space E and of identifying the presence of each user of the space E and the position of each user of the space E. An imager is for example preferably a camera. The imager has a field of vision FC, shown in Figures 6 and 7. The field of vision FC of the imager may cover only a portion of the space E, or may preferably cover the entire space E, or may cover an area larger than the space E. The position of each user of the space E is obtained for example by image analysis.Preferably, the position of users can be tracked as users move, i.e., the position of users should be obtained in real time, near real time, or for example at every predefined time interval, for example every 5 seconds. [Fig.3] shows a schematic representation of the initial position PII of a user in space E. .

[0023] The term “zone” of space E means a part of space E defined by one or more users of space E and making it possible to manage one of the metrics managed by the space management device 10 for this zone, independently of the other zones of space E and of the rest of space E. Thus, the definition of zones makes it possible, for example, to manage the occupation of the zones and therefore to reserve a zone for a time slot by knowing the occupation of the zone.

[0024] To define an area of a space E, a user of the space E uses a computer, for example a laptop, desktop computer, a smartphone or a tablet, or any other human-machine interface. The user uses the human-machine interface to validate the different points of the area of the space E to be created. For example, the user can use his smartphone to validate each point of the area to be created. An area can be created from two points, for example two points located on a diagonal when the area is rectangular or square. The number of points in the area and the shape of the area are predefined, and can be chosen by the user. The invention applies to any shape of area comprising any number of points greater than or equal to two. For example, and preferably, an area can be rectangular or square, or can be round, oval, triangular, hexagonal, or of any other shape.A zone is preferably in two dimensions, in the ground plane of the space E managed by the space management device 10.

[0025] A zone is defined by a user of the space E during a time interval whose start corresponds to the user's validation of an initial position and whose end corresponds to the user's validation of a final position. During this time interval, the user moves and can define other points of the zone, via his position. A point of the zone then corresponds to the position of the user when he performs a validation via the computer allowing the zone to be defined, for example his smartphone.

[0026] For example, [Fig.4] shows a schematic representation of a zone ZI defined between an initial position PII and a final position PF1. The zone ZI is rectangular. To create this zone Zl, the user moved from position PII to position PF1, and validated the points of the zone Zl, respectively when he was at position PII and then when he was at position PF1.

[0027] The method according to the invention makes it possible to improve the creation of adjacent zones according to the way of creating zones of the space E described previously. This improvement is shown in Figures 6 and 7. [Fig. 6] shows a schematic representation of the “magnetism” of a new zone Z2 with respect to an old zone ZL. The “magnetism” according to the invention makes it possible to avoid the presence of gaps lower than the resolution of the imager of the space management device 10 between the zones of the space E. Thus, as shown in [Fig. 6], a new zone Z2 will necessarily be stuck to an existing zone Zl if the position of the user creating the new zone Z2 is at a distance lower than a threshold from the existing zone ZL. Thus, unlike the prior art shown in the left part of [Fig. 6], there is no gap lower than the resolution of the imager of the space management device 10 between two zones, as shown according to the invention on the right in [Fig. 6]. In the same way, as shown in the left part of [Fig. 7], if the imager of the space management device 10 has a field of view FC greater than the size of the space E, a new zone could be created outside, at least in part, the managed space E. In such a case, the invention allows the "magnetism" of the new zone ZI with respect to the managed space E, as shown in the right part of [Fig. 7],

[0028] When a new zone Z2 is created according to the invention, the space management device 10 can then manage at least one metric of the new zone Z2, for example the occupancy of the zone. As shown in the right part of [Fig.6], the space management device 10, using its imager, has detected a low occupancy in the new zone Z2 and a high occupancy in the existing zone Z1.

[0029] When at least one zone already exists in space E, the user may want to create a new zone. The user may be the same user as the one who created the existing zone or another user. It is important to note that the method only works for a user creating a zone. The method does not allow zones to be created by two users simultaneously.

[0030] The method 2 according to the invention is shown schematically in [Fig. 5]. The method 2 according to the invention is a computer-implemented method. By "computer-implemented" is meant that the steps, or substantially all of the steps, are executed by at least one computer or processor or any other similar system. Thus, steps are performed by the computer, possibly fully automatically, or semi-automatically. In examples, the triggering of at least some of the steps of the methods may be performed by user-computer interaction. The level of user-computer interaction required may depend on the intended level of automation and balanced against the need to implement the user's wishes. In examples, this level may be user-defined and / or predefined.

[0031] A typical example of a computer implementation of a method is to execute the method with a system adapted for this purpose. The system may comprise a processor coupled to a memory and a graphical user interface (GUI), the memory having recorded thereon a computer program comprising instructions for implementing the method. The memory may also store a database. The memory is any hardware adapted for such storage, possibly comprising several distinct physical parts.

[0032] Method 2 according to the invention comprises 3 steps 21 to 23. Method 2 according to the invention is a method for defining a zone in a space E, at least one metric of the space E being managed by a space management device 10.

[0033] In a first step 21, the position of the user defining the zone in the space E is received by the computer implementing the method 2. The position has been detected by the space management device 10 as described previously.

[0034] In a second step 22, the position of the user received in step 21 is compared to at least one existing zone defined in space, for example in [Fig.8], the position Posl of the user is compared to the zone Zl.

[0035] “Comparison of a position to a zone” means verifying that the user's position is outside the existing zone and is at a distance less than a threshold from at least one predefined notable point of the existing zone.

[0036] As shown in [Fig.8], the threshold is for example a predefined radius RI, the center of which is the user's position. An existing zone is then considered quite "close" to the user's position when the user's position Posl is at a distance less than a predefined distance RI from a remarkable point of the existing zone.

[0037] A “remarkable point” within the meaning of the present invention is a predefined point of the zone. A remarkable point is then, for example, a vertex of the zone, a projection of the user’s position onto an edge of the existing zone, or the center of an edge of the existing zone. The projection may be orthogonal or any other type of projection.

[0038] [Fig.9] is an enlarged representation of a part of [Fig.8], notably “zoomed” to the user’s position Posl.

[0039] The position Posl of the user is projected orthogonally onto a first abscissa edge of the zone Zl in order to verify whether the position Posl of the user is at a distance less than the predefined threshold RI from the remarkable point PR1 corresponding to the projection of the position Posl of the user onto the edge of the zone ZL. Two other remarkable points are represented: the point PR2 is a vertex of the zone Zl, and the point PR3 is the middle of the edge of the zone ZL.

[0040] Since the position Posl of the user is at a distance less than the threshold RI from the remarkable point PR2, the method 2 comprises a third step 23 of defining the new zone Z2 from the remarkable point PR2, and not from the position Posl of the user as in the prior art. Thus, deviations less than the predefined threshold RI between the existing zone Zl and the new zone Z2 are avoided.

[0041] Preferably, when defining a new zone from a remarkable point rather than from the position of the user, when the existing zone and the new zone each have at least one straight edge, the two zones have an edge in common, of the same length or of different lengths.

[0042] “Defining” an area means implementing a method for defining an area, the method for defining an area comprising at least the reception, by the computer implementing the method 2 according to the invention, of information concerning the area obtained from a user using a human-machine interface and then storing information concerning the area in a memory of a device, for example of the computer implementing the method 2 according to the invention. Information concerning the area may be vertices of the area, dimensions of the area, geographical coordinates of the area, or any other information concerning the area, obtained from the user or deduced from information obtained from the user. This information concerning the area is then used by another device or system or by the same device or system as that implementing the method 2 according to the invention.Information about the zone allows for example to calculate the occupancy in the zone, to obtain the temperature in the zone and regulate it, or to obtain any metric of the zone and / or to act on this metric.

[0043] As shown in [Fig. 10], the new zone Z2 has an edge merged with a part of the edge of the existing zone ZI onto which the user's position Posl was projected during the verification of step 22. By "merged edges" is meant two overlapping edges having a different length or having the same length. The user, after validating the remarkable point PR1 of the zone ZI as the initial point PI2 of the zone Z2, moves to form the zone Z2 by validating its final position as the end point PF2.

[0044] In the same way, in another embodiment shown in [Fig. 11], a new zone Z3 has an edge merged with a part of the ordinate edge of the existing zone ZI onto which a position Pos2 of the user was projected during the verification of step 22. The user, after validating the remarkable point PR4 of the zone ZI as the initial point PI3 of the zone Z3, moves to form the zone Z3 by validating its final position as the end point PF3.

[0045] In the same way, in another embodiment shown in [Fig. 12], a new zone Z4 has an edge merged with a part of the upper edge of the existing zone Z1. The starting remarkable point of the new zone Z4 is then the vertex PR2 of the zone Z1, because the user has his position Pos3 closer to this remarkable point PR2 than to the other remarkable points of the existing zone ZL. The user, after validating the remarkable point PR4 of the zone Z1 as the initial point PI4 of the zone Z4, moves to form the zone Z4 by validating his final position as the end point PF4.

[0046] In [Fig. 13], the user has a position Po5 close to two existing zones Z1 and Z6. The invention applies to any number of existing zones close to the position of the user, that is to say for any area having a remarkable point at a distance from the user's position less than the RI threshold.

[0047] In a case such as that shown in [Fig. 13], that is to say in the case in which the user has a position close to at least two existing zones, at least one rule can be used to determine the remarkable point used to define the initial point of the new zone. This rule, or these rules when there are several, can be defined by an operator, preferably are predefined by configuration. These rules can be stored in a memory, for example in a memory of the computer implementing the method 2 according to the invention or in a memory accessible by this computer.

[0048] The rule(s) makes it possible to define an order of priority for the notable points and / or existing zones. For example, a rule may indicate that a ZI zone created before a Z6 zone is to be prioritized for the definition of a new zone.

[0049] Alternatively, and as shown in [Fig. 13], the smallest distance from the user position Pos5 to a remarkable point is used to select the remarkable point as the initial point of the new area. In such a case, the distances DI of the user position Pos5 with its orthogonal projection PR6 on an edge of the existing area Z6, D2 of the user position Pos5 with its orthogonal projection PR7 on an edge of the existing area Z1 and D3 of the user position Pos5 with the midpoint of the edge PR3 are compared. Since the distance D2 is the smallest distance among the three distances DI to D3, the remarkable point PR7 is selected as the initial point PI7 of the new area Z7 as shown in [Fig. 14].

[0050] When only one existing area is close to the user's position and several notable points of this existing area are close to the user's position, one or more rules may also be used to determine the notable point to be selected, in the same manner as when several existing areas are close. The rules may define priorities between the notable points without regard to the areas, between the existing areas without regard to the notable points, or any combination of the existing areas and their notable points.

[0051] In one embodiment, the areas may have a shape other than a rectangular shape and a square shape. This area may be created via the creation, by the user, of a point cloud. This point cloud may be created by the user moving in the space E, and, for each point, by the user validating, on his user device, the creation of a point of the point cloud associated with his position at the time of validation. This is shown in [Fig. 15], which shows a schematic representation of a point cloud created by a user via its movements and a created area corresponding to the point cloud. The created area may have a predetermined shape, the size and position of which are then adapted to the point cloud, i.e. the shape is adjusted to have at least one point in common with the point cloud. Alternatively, the created area may have a shape comprising several edges, each edge connecting two points of the point cloud to create a shape from all the points of the point cloud. The shape may be created following an order defined by the order of validation of the points of the point cloud by the user. An area created with a point cloud is “magnetized” to an adjacent area according to the method according to the invention, with at least one of the points of the created area, preferably the starting point of the created area, being the predefined remarkable point of the area adjacent to the created area.This embodiment allows creating areas of different shapes, adapted to the user's wishes and to the managed space E. For example, in [Fig. 15], the initial point PI8 is the remarkable point PR7, determined from the user's position Pos6, and the final point is the point PF8. The created area Z8 has a shape defined by the point cloud Pos6 to Posl4. Each point of the point cloud can be "magnetized" to an adjacent area if the user's position is at a distance less than a threshold from a remarkable point, for example the remarkable points PR6 and PR3 from positions Pos7 and Posl4. In the invention, when a point cloud is used to create an area, when the user's position is at a distance less than a threshold from a remarkable point of an adjacent area upon validation by the user, this remarkable point belongs to the point cloud rather than the user's position.

Claims

Claims

1.

2.

3. Computer-implemented method (2) of defining a zone in a space (E), at least one metric of the space (E) being managed by a space management device (10), the method (2) comprising the steps of: - Reception (21) of the position (Posl,.. .,Pos5) of a user in the space (E) detected by the space management device (10), - When (22) the position (Posl,.. .,Pos5) of the user is outside an existing zone (Zl, Z6) and is at a distance less than a threshold (RI) from at least one predefined remarkable point (PR1,.. .,PR7) of the existing zone (Zl, Z6): Definition (23) of a new zone (Z2,...,Z5,Z7) of the space (E) from the predefined remarkable point (PR1,.. .,PR7), the zone of the space (E) being defined between the remarkable point (PR1,.. .,PR7) and a final position (PF1,... ,PF5) of the user after movement of the user. Method (2) according to claim 1 wherein the remarkable point predefined (PR1,...,PR7) is at least one of the following remarkable points: a summit of the existing zone (Zl, Z6), a projection of the position (Posl,.. .,Pos5) of the user onto an edge of the existing zone (Zl, Z6), the center of an edge of the existing zone (Zl, Z6). Method (2) according to one of the preceding claims, wherein the position (Posl,.. .,Pos5) of the user is outside a plurality of existing zones (Zl, Z6) and is at a distance (Dl, D2, D3) less than a threshold (RI) from at least one predefined remarkable point (PR3, PR6, PR7) of each existing zone (Z1,Z6) of the plurality of existing zones, and according to which the definition of the new zone (Z7) of the space is carried out from the predefined remarkable point (PR3, PR6, PR7) of the existing zone (Zl, Z6) among the plurality of existing zones for which the position of the user (Pos5) is at the furthest distance low (D2) of the remarkable point of the existing zone.

4. Method (2) according to one of the preceding claims, wherein the managed metric is the temperature, the lighting and / or an occupancy of at least one zone of the space (E).

5. Method (2) according to one of the preceding claims, wherein the position (Posl,.. .,Pos5) of the user is detected by the space management device (10) by imaging and the user is located in a part of the space (E) imaged by the space management device (10).

6. Method (2) according to one of the preceding claims, wherein the user confirms the definition of the new zone (Z2,.. .Z5,Z7) via a user device.

7. Method (2) according to one of the preceding claims, wherein the new zone (Z2,...,Z5,Z7) of the space (E) from the predefined remarkable point (PR1,...,PR7) has a shape defined by a cloud of points, the points of the cloud of points being defined by a succession of positions of the user.

8. Method (2) according to the preceding claim according to which at least one point of the point cloud of the new zone (Z2,...,Z5,Z7) of the space (E) other than the predefined remarkable point (PR1,...,PR7) from which the new zone (Z2,...,Z5,Z7) is defined is another predefined remarkable point (PR 1,...,PR7).

9. Space management device (10) configured to implement the method according to one of the preceding claims.

10. Device (10) according to claim 9 comprising at least one imager for detecting the position (Posl,.. .,Pos5) of the user by imaging, the part of the space imaged by the space management device (10) being a field of vision of the camera.

11. Device (10) according to one of claims 9 or 10 according to which the space management device (10) is placed on the ceiling of the space (E) or on a wall of the space (E).

12. Computer program product comprising instructions which, when the program is executed by a computer, cause the latter to implement the method (2) according to one of claims 1 to 8.

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