JP2017098268A - Identification device - Google Patents

Abstract

A light emitting device specified by an installation position and a light emitting device specified by identification information are identified by a simple operation. An identification apparatus according to an embodiment includes a control unit, an imaging unit, and an identification unit. The control unit individually controls lighting / light-off of the plurality of light emitting devices via the network, using identification information of each of the plurality of light emitting devices installed in the space. The imaging unit images the space in time series and obtains time-series captured images. The identification unit identifies the installation positions of each of the plurality of light emitting devices using the control contents of turning on and off of the plurality of light emitting devices and the time-series captured images, and is specified by the plurality of installation positions. Each of the plurality of light emitting devices and each of the plurality of light emitting devices specified by the plurality of identification information are identified. [Selection] Figure 1

Description

  Embodiments described herein relate generally to an identification apparatus.

  In recent years, light-emitting devices such as lighting devices installed in offices and the like that are connectable to a network are known. For this reason, by using identification information such as a MAC (Media Access Control) address or an IP (Internet Protocol) address of the light emitting device, it is possible to perform the lighting on / off control of the light emitting device via a network. .

  By the way, the identification information of the light emitting device is not normally considered at the stage where the light emitting device is wired and installed in an office or the like. For this reason, a situation occurs in which the correspondence between the installation position of the light emitting device and the identification information is unknown, and in this state, the light emitting device to be turned on / off is specified from the installation position, and the identification information of the specified light emitting device is used. The lighting on / off control of the light emitting apparatus according to the installation position such as the lighting on / off control of the light emitting apparatus cannot be performed.

  Here, by using two imaging devices arranged so as to image a space in which a plurality of lighting fixtures are installed from orthogonal directions, the coordinates of each lighting fixture are calculated, and the lighting fixtures identified by the installation positions And a light emitting device specified by the identification information.

JP 2009-283183 A

  However, in the conventional technology as described above, the arrangement work of the imaging device is complicated, and the work of identifying the light emitting device specified by the installation position and the light emitting device specified by the identification information is also complicated. The problem to be solved by the present invention is to provide an identification device capable of identifying a light emitting device specified by an installation position and a light emitting device specified by identification information by a simple operation.

  The identification device of the embodiment includes a control unit, an imaging unit, and an identification unit. The control unit individually controls lighting / light-off of the plurality of light emitting devices via the network, using identification information of each of the plurality of light emitting devices installed in the space. The imaging unit images the space in time series and obtains time-series captured images. The identification unit identifies the installation positions of each of the plurality of light emitting devices using the control contents of turning on and off of the plurality of light emitting devices and the time-series captured images, and is specified by the plurality of installation positions. Each of the plurality of light emitting devices and each of the plurality of light emitting devices specified by the plurality of identification information are identified.

FIG. 1 is a diagram illustrating a configuration example of an identification device according to a first embodiment. FIG. 2 is a perspective view showing an example of a space to which the identification device of the first embodiment is applied. FIG. 3 is a diagram illustrating an example of a control signal according to the first embodiment. FIG. 4 is a diagram illustrating another example of the control signal of the first embodiment. FIG. 5 is a diagram illustrating an example of a mapping result according to the first embodiment. FIG. 6 is a flowchart illustrating an example of identification processing according to the first embodiment. FIG. 7 is a diagram illustrating a configuration example of an identification apparatus according to the second embodiment. FIG. 8 is a diagram illustrating an example of a mapping result of the second embodiment. FIG. 9 is a flowchart illustrating an example of identification processing according to the second embodiment.

  Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a diagram illustrating an example of the configuration of the identification apparatus 100 according to the first embodiment. As illustrated in FIG. 1, the identification apparatus 100 includes a control unit 110, an imaging unit 120, an identification unit 130, a mapping unit 150, and an output unit 160. The identification device 100 (control unit 110) is connected to a plurality of light emitting devices A1 to A9 via the network 101.

  FIG. 2 is a perspective view showing an example of a space 1 to which the identification apparatus 100 of the first embodiment is applied. As shown in FIG. 2, light emitting devices A <b> 1 to A <b> 9 are installed in a lattice shape on the ceiling 2 of the space 1. In 1st Embodiment, although the case where the space 1 is the space in an office is assumed, it is not limited to this, What kind of space will be if it is a space where a light-emitting device is arrange | positioned? Also good. Note that the number of light emitting devices may be any number as long as it is plural.

  Here, the light emitting devices A1 to A9 will be described. In the following description, when it is not necessary to distinguish each of the light emitting devices A1 to A9, they may be simply referred to as the light emitting device A.

  In 1st Embodiment, although the case where the light-emitting fixture A is a lighting fixture which makes a light emission function a main function is assumed, it is not limited to this. The light emitting device A may be any device as long as it has a light emitting function, and the light emitting function does not necessarily have to be a main function.

  The light emitting device A may include, for example, a lamp or LED for visually confirming the operation state of the device, such as an air conditioner, a monitoring camera, a human sensor, a temperature sensor, and a humidity sensor.

  The light emitting devices A1 to A9 do not have to be a single type of light emitting device, and a plurality of types of light emitting devices may be mixed. That is, it is not necessary for all the light emitting devices A1 to A9 to be lighting devices, air conditioners, surveillance cameras, human sensors, temperature sensors, or humidity sensors. For example, a lighting fixture, an air conditioning device, and a human sensor may be mixed, or may be mixed in other combinations.

  Note that each of the light emitting devices A has identification information such as a MAC address and an IP address, and by using the identification information, the lighting on / off control via the network 101, that is, the light emitting function via the network 101 is performed. On / off control is possible.

  Therefore, the identification device 100 (control unit 110) uses the identification information of the light emitting devices A1 to A9 to turn on a specific light emitting device among the light emitting devices A1 to A9 and turn off the remaining light emitting devices. It is possible to freely control turning on / off of the light emitting device A, such as turning on and off a specific light emitting device.

  In the first embodiment, the case where the identification information of the light emitting device A is a MAC address will be described. However, the present invention is not limited to this. For example, the identification information used for network control such as an IP address may be used. Anything may be used.

  Returning to FIG. 1, each part of the identification apparatus 100 will be described.

  The control unit 110, the identification unit 130, and the mapping unit 150 may be realized by software, for example, by causing a processing device such as a CPU (Central Processing Unit) to execute a program, an IC (Integrated Circuit), or the like. It may be realized by hardware, or may be realized by using software and hardware together. The imaging unit 120 can be realized by an imaging device such as a digital camera or a video camera, for example. The output unit 160 may be realized by a display device such as a liquid crystal display or a touch panel display, or may be realized by a printing device such as a printer.

  The control unit 110 individually controls turning on / off of the light emitting devices A1 to A9 via the network 101 using the identification information of each of the light emitting devices A1 to A9. Specifically, the control unit 110 transmits a control signal including a turn-on / off instruction instructing the turn-on / off timing and identification information of the light-emitting apparatus A that is the target of the turn-on / off instruction via the network 101. A is transmitted to A, and the light emitting device A is controlled to be turned on and off.

  In the first embodiment, it is assumed that the control unit 110 transmits a control signal to the light emitting devices A1 to A9 by broadcasting. Therefore, in the first embodiment, the control signal associates the identification information (MAC address) of each of the light emitting devices A1 to A9 with the turn-on / off command, and the control signal is transmitted to all of the light emitting devices A1 to A9. The

  And each of light-emitting fixtures A1-A9 will confirm whether own identification information is contained in the received control signal, if its own identification information is contained if the received control signal is received. Turn on / off in accordance with a turn-on / off instruction associated with the identification information.

  FIG. 3 is a diagram illustrating an example of the control signal of the first embodiment, and as described above, the identification information of each of the light emitting devices A1 to A9 is associated with the turn-on / off command. In the example illustrated in FIG. 3, the turn-on / off command represents that the light emitting device A is turned on during the ON period, and the light-off device A is turned off during the OFF period of the turn-on / off command.

  Here, since the identification part 130 mentioned later performs identification using the change timing when the lighting / extinguishing state of each of the light emitting devices A1 to A9 changes, in the control signal shown in FIG. A turn-on / off command is set so as to be different for each of the appliances A1 to A9. Note that the change timing is at least one of the timing at which the lighting state changes from the lighting state to the lighting state and the timing at which the lighting state changes from the lighting state to the lighting state.

  However, it is not necessary for the turn-on / off instruction to set the turn-on / off instruction so that both the timing of changing from the lighting state to the turning-off state and the timing of changing from the turning-off state to the lighting state are different for each of the light emitting devices A1 to A9 What is necessary is just to set so that at least one may differ by each light-emitting fixture A1-A9.

  In other words, the turn-on / off command may be any command that allows the control unit 110 to control the turn-on / off of the light emitting devices A1 to A9 so that the change timing differs among the light emitting devices A1 to A9.

  FIG. 4 is a diagram illustrating another example of the control signal of the first embodiment. In the control signal shown in FIG. 4, a turn-on / off command is set so that at least the timing of changing from the lighting state to the light-off state differs among the light emitting devices A1 to A9.

  In addition, like the control signal shown in FIG. 3, you may set a lighting-on / off command so that each of light-emitting fixtures A1-A9 may not be in a lighting state, or like the control signal shown in FIG. A turn-on / off command may be set so that at least one of the light emitting devices A1 to A9 overlaps and is turned on. Further, contrary to the control signal shown in FIG. 3, a turn-on / off command may be set so that each of the light emitting devices A <b> 1 to A <b> 9 does not overlap and turn off.

  However, the control signals shown in FIG. 3 and FIG. 4 are examples, and the control unit 110 can employ various on / off controls as long as the control signals can be used for identification performed by the identification unit 130 described later.

  In addition, the control unit 110 may transmit a control signal to the light emitting devices A1 to A9 by unicast or multicast. For example, if the control signal is transmitted by unicast, for each of the light emitting devices A1 to A9, a control signal in which the identification information of the light emitting device A is associated with the turn-on / off command is prepared. A corresponding control signal may be transmitted to each of the appliances A1 to A9. In this case, it is preferable to use an IP address instead of a MAC address as the identification information.

  The imaging unit 120 images the space 1 in which the light emitting devices A1 to A9 are installed in time series, and obtains time-series captured images. Specifically, the imaging unit 120 images the light emitting devices A1 to A9 that individually turn on and off according to the control of the control unit 110 in time series.

  Here, it is assumed that the imaging unit 120 includes an image sensor that can observe the light emitted from the light emitting devices A1 to A9 in order to capture the light emitted. Note that the captured image may be a grayscale image or a color image.

  The identification unit 130 specifies the installation positions of the light emitting devices A1 to A9 using the control content of the lighting units A1 to A9 turned on and off by the control unit 110 and the time-series captured images captured by the imaging unit 120. The light emitting devices A1 to A9 specified at the plurality of installation positions and the light emitting devices A1 to A9 specified by the plurality of identification information are identified. Here, the identification unit 130 associates each installation position of the light emitting devices A1 to A9 with identification information of each of the light emitting devices A1 to A9, so that each of the light emitting devices A1 to A9 specified at a plurality of installation positions and a plurality of light emitting devices A1 to A9 are identified. Each of the light emitting devices A1 to A9 specified by the identification information is identified.

  Specifically, the identification unit 130 is an area that changes in association with the lighting / extinguishing of the light emitting device A from the captured images before and after the change timing of the light emitting device A among the time-series captured images for each light emitting device A. A certain change area is detected, and the installation position of the light emitting device A is specified based on the detected change area. Specifically, the identification unit 130 acquires position / posture information indicating the position and posture of the imaging unit 120, calculates a spatial position on the space 1 occupied by the change region using the acquired position / posture information, and calculates The determined spatial position is specified as the installation position of the light emitting device A.

  The position information of the image capturing unit 120 is information indicating in which position the image capturing unit 120 is in the space 1 (three-dimensional space), and can be expressed by coordinates (x, y, z) in an orthogonal coordinate system, for example. However, the present invention is not limited to this, and it may be expressed in an oblique coordinate system or a polar coordinate system. The position information of the imaging unit 120 may be a value input by a user via an input device (not shown) such as a mouse or a keyboard. When the imaging unit 120 includes a position sensor, the position sensor The sensor value acquired from

  The posture information of the imaging unit 120 is information indicating how much the imaging unit 120 has rotated from the reference posture, and may be expressed by, for example, three angles of roll, pitch, and yaw, or expressed by Euler angles. Alternatively, it may be expressed by a quaternion or a Rodrigues parameter. The reference posture can be set to an arbitrary posture. For example, the image sensor surface of the imaging unit 120 may be parallel to the vertical direction and the optical axis of the imaging unit 120 may be in the north direction. The posture information of the imaging unit 120 may be a sensor value acquired from a posture sensor such as a gyro sensor or a geomagnetic sensor provided in the imaging unit 120, for example.

  For example, the identification unit 130 acquires the identification information and the turn-on / off instruction of each of the light emitting devices A1 to A9 used by the control unit 110 for the light on / off control of the light emitting devices A1 to A9 from the control unit 110. The time t0 of the change timing at which the light-off state changes at a different timing from the other light emitting devices A2 to A9 is specified.

  Then, the identification unit 130 acquires the captured image (t0-pt1) at time t0-pt1 and the captured image (t0 + pt2) at time t0 + pt2 from the time-series captured images, and the captured image (t0-pt1). A pixel difference is calculated from the captured image (t0 + pt2), and an area where the pixel difference exceeds a predetermined threshold is detected as a change area.

  Note that pt1 and pt2 are positive numbers determined in advance, and specifically, positive numbers determined so that the lighting / light-off state of the light emitting device A1 is different between time t0-pt1 and time t0 + pt2. For this reason, it is preferable that pt1 <pt2.

  Here, since the light emitting device whose lighting state changes at time t0 should be one light emitting device A1, the number Mt0 of detected change regions is expected to be 1.

  For this reason, if Mt0 = 1, the identification unit 130 determines that the light emitting device A1 is present in the detected change region, and associates the position of the detected change region with the identification information of the light emitting device A1. The position of the change area may be any two-dimensional coordinate that represents the change area, and may be, for example, the center-of-gravity coordinate of the change area or the weighted average coordinate of the change area.

  In addition, when Mt0> 1, the identification unit 130 determines that the detected change area includes a change area in which the light-emitting device A1 does not exist, and does not perform association with the identification information of the light-emitting tool A1. For example, it can be considered that Mt0> 1 when external light enters the space 1.

  In addition, when Mt0 = 0, the identification unit 130 determines that the change area where the light emitting device A1 exists cannot be detected, and does not associate the identification information with the identification information of the light emitting device A1.

  When the identification unit 130 does not associate the identification information of the light emitting device A1 with the position of the change region, the other change in which the lighting / light-off state of the light emitting device A1 changes at a different timing from the other light emitting devices A2 to A9. What is necessary is just to repeat the process similar to the above in timing (change timing other than time t0).

  Hereinafter, the same processing is repeated for the light emitting devices A2 to A9, and the change areas are associated with the identification information of the light emitting devices A1 to A9.

  In addition, in 1st Embodiment, although the example which detects a change area | region for every light-emitting fixture A was demonstrated, it is the said light-emitting fixture A for every change timing when any one lighting-out state changes among light-emitting fixtures A1-A9. The change area may be detected. In this case, since the change region may be detected a plurality of times for the same light-emitting device A, Mtx = 1 (x ≧ 0) in at least one of the detections, and the light-emitting device A is highly likely to have a change region. It can be expected to be associated.

  Thereafter, the identification unit 130 converts the position of the change region associated with the identification information of each of the light emitting devices A1 to A9 into a spatial position on the space 1 using the position / posture information of the imaging unit 120 ( calculate). That is, the identification unit 130 converts the position of the change area represented by the two-dimensional coordinates into a spatial position represented by the three-dimensional coordinates that are the coordinate system of the imaging unit.

  As a result, the identification information of each of the light emitting devices A1 to A9 is associated with the installation position of each of the light emitting devices A1 to A9, and each of the light emitting devices A1 to A9 specified by the identification information and the light emitting device A1 specified by the installation position. -A9 are identified.

  The identification unit 130 uses the fact that the light emitting devices A1 to A9 are installed on the ceiling 2 that is substantially flat, for example, “Detection of obstacles by plane area extraction using stereo moving images” Information Processing Society Journal, Using the technology described in computer vision and image media 45, 2004, conversion to a spatial position is performed.

  In this case, the posture information of the imaging unit 120, the distance d from the imaging unit 120 to the ceiling 2, and the internal parameters of the imaging unit 120 are required. The position / posture information acquired from the image pickup unit 120 may be used as the posture information of the image pickup unit 120. The distance d is obtained by subtracting the height h from the floor to the ceiling 2 by the height from the floor to the imaging unit 120. The height h from the floor to the ceiling 2 may be stored in advance in a storage unit (not shown). For the height to the imaging unit 120, position information of the imaging unit 120, that is, position / posture information acquired from the imaging unit 120 may be used, or a sensor value measured by a distance sensor or the like may be used. Note that the distance d may be obtained using the three-dimensional shape of the space 1 obtained by applying the three-dimensional reconstruction method. The internal parameters of the imaging unit 120 may be obtained from the imaging unit 120. For calibration of internal parameters, a generally known method may be used.

  The mapping unit 150 acquires the drawing data of the space 1, and maps the installation positions and identification information of the identified light emitting devices A1 to A9 in association with the acquired drawing data. The drawing data may be anything as long as it is drawing data representing the arrangement of the space 1, and may be, for example, drawing data of a plan view of the space 1 or drawing data of a layout drawing. The drawing data may be stored in advance in a storage unit (not shown), for example.

  However, the mapping unit 150 matches the coordinate system on the drawing data and the coordinate system of the imaging unit 120 before mapping the installation positions and identification information of the identified light emitting devices A1 to A9 onto the drawing data. .

  Here, assuming that the position coordinate in the coordinate system of the imaging unit 120 is p and the position coordinate in the coordinate system on the drawing data corresponding to the position coordinate p is q, using an appropriate rotation matrix R and translation vector t, The conversion equation q = Rp + t is established. The mapping unit 150 matches the coordinate system on the drawing data with the coordinate system of the imaging unit 120 using this conversion formula.

  If the rotation matrix R and the translation vector t cannot be set directly, the mapping unit 150 can use the following method to match the coordinate system on the drawing data with the coordinate system of the imaging unit 120.

  First, the mapping unit 150 sets a reference global coordinate system. The global coordinate system can be arbitrarily set. For example, the east direction is the x axis, the north direction is the y axis, and the vertical direction is the z axis.

  Next, since the coordinate system of the imaging unit 120 can be converted into a global coordinate system, the rotation matrix and the translation vector used for conversion from the coordinate system of the imaging unit 120 to the global coordinate system are respectively Rg, tg, and To do. When the coordinate system of the imaging unit 120 and the global coordinate system are the same coordinate system, the rotation matrix Rg is a unit matrix and the translation vector tg is a zero vector.

  Further, since the global coordinate system can be converted into a coordinate system on the drawing data, the rotation matrix and the translation vector used for conversion from the global coordinate system to the coordinate system on the drawing data are Rd and td, respectively. .

  Here, considering the conversion through the global coordinate system from the position coordinate p in the coordinate system of the imaging unit 120 to the position coordinate q in the coordinate system on the drawing data, a conversion equation of q = Rd (Rgp + tg) + td = RdRgp + Rdtg + td is obtained. To establish.

  Therefore, the mapping unit 150 can match the coordinate system on the drawing data with the coordinate system of the imaging unit 120 by setting the rotation matrix R = RdRg and the translation vector t = Rdtg + td.

  FIG. 5 is a diagram illustrating an example of the mapping result of the first embodiment. In the example shown in FIG. 5, the elements B1 to B9 indicating the light emitting devices A1 to A9 are mapped on the installation positions of the light emitting devices A1 to A9 on the drawing data 151 of the plan view, respectively, and in the vicinity of the element B1. The identification information (XX-XX-XX-XX-XX-01) of the light emitting device A1 is mapped, and the identification information (XX-XX-XX-XX-XX-02) of the light emitting device A2 is mapped in the vicinity of the element B2. Are mapped. In addition, in FIG. 5, illustration is abbreviate | omitted about the mapping of the identification information of light-emitting fixtures A3-A9.

  The output unit 160 outputs drawing data in which the installation positions and identification information of the light emitting devices A1 to A9 that have been identified by the mapping unit 150 are mapped.

  FIG. 6 is a flowchart illustrating an example of a flow of an identification process performed by the identification apparatus 100 according to the first embodiment.

  First, the control part 110 starts lighting-off control of several light-emitting fixtures A1-A9 via the network 101 according to a control signal (step S101).

  Subsequently, the imaging unit 120 images the space 1 in which the plurality of light emitting devices A1 to A9 are installed in time series, and obtains time-series captured images (step S103). Thereby, the time-series captured image which imaged light-emitting fixtures A1-A9 which turn on / off individually according to control of the control part 110 in time series is obtained.

  Subsequently, the identification unit 130 acquires position / posture information of the imaging unit 120 (step S105).

  Subsequently, the identification unit 130 uses, for each light-emitting device A, the light-emitting device A by using the control content of turning on and off the light-emitting devices A1 to A9 by the control unit 110 and the time-series captured images captured by the image capturing unit 120. A change area is detected from the captured images before and after the change timing of A (step S107), and the position of the detected change area is associated with the identification information of the light emitting device A.

  Subsequently, using the acquired position / posture information, the identification unit 130 calculates, for each light emitting device A, the spatial position on the space 1 occupied by the change area associated with the identification information of the light emitting device A, The calculated spatial position is specified as the installation position of the light emitting device A (step S109).

  As a result, the identification information of each of the light emitting devices A1 to A9 is associated with the installation position of each of the light emitting devices A1 to A9, and each of the light emitting devices A1 to A9 specified by the identification information and the light emitting device A1 specified by the installation position. -A9 are identified.

  Subsequently, the mapping unit 150 acquires the drawing data of the space 1 and maps the installation positions and the identification information of the identified light emitting devices A1 to A9 in association with the acquired drawing data (step S111).

  Subsequently, the output unit 160 outputs drawing data in which the installation positions and the identification information of the light emitting devices A1 to A9 identified by the mapping unit 150 are mapped (Step S113).

  As described above, in the first embodiment, when the plurality of light emitting devices are individually turned on / off using the identification information of each of the plurality of light emitting devices, and the plurality of light emitting devices that are individually turned on / off are imaged in time series. For each light-emitting device, a change area that changes in conjunction with turning on / off is detected for each light-emitting apparatus, the installation position is specified based on the detected change area, and the plurality of light-emitting apparatuses specified by the identification information Each is identified with each of the plurality of light emitting devices specified at the installation position. Therefore, according to the first embodiment, the light-emitting device specified by the installation position and the light-emitting device specified by the identification information can be identified by a simple operation, and the time required for the joint operation can be shortened. .

  According to the first embodiment, since the installation position and identification information of each identified light emitting device are mapped and output on the drawing data representing the arrangement of the space, the user can set the installation position of each light emitting device and The correspondence with the identification information can be easily grasped.

(Second Embodiment)
In the second embodiment, the identification process described in the first embodiment is divided into N times (N> 1) when a plurality of light emitting devices installed in the space cannot be imaged at a time, such as in a large office space. An example of identifying a plurality of light emitting devices by performing the above will be described. In the following, differences from the first embodiment will be mainly described, and components having the same functions as those in the first embodiment will be given the same names and symbols as those in the first embodiment, and the description thereof will be made. Omitted.

  FIG. 7 is a diagram illustrating an example of the configuration of the identification apparatus 200 according to the second embodiment. As shown in FIG. 7, in the identification device 200 of the second embodiment, a control unit 210 is different from that of the first embodiment. Further, the identification device 200 (control unit 210) of the second embodiment is connected to a plurality of light emitting devices A1 to A29 via the network 101.

  The controller 210 has an identification mode (an example of a first mode) and a presentation mode (an example of a second mode). In the identification mode, the controller 210 controls turning on / off of the light emitting devices A1 to A29 so that the change timing is different for each of the light emitting devices A1 to A29, and in the presentation mode, the control unit 210 controls the lighting devices A1 to A29. The lighting on / off of the light emitting devices A1 to A29 is controlled so that the lighting on / off of the identified light emitting device A and the unidentified light emitting device A is different.

  By turning on and off the light emitting devices A1 to A29 in the presentation mode, the user (imager) can grasp the identified light emitting device A and the unidentified light emitting device A, so that the identification work of the light emitting devices A1 to A29 is efficiently performed. Can be performed.

  For this reason, it is desirable to determine whether the identification mode or the presentation mode is the mode in which the user inputs the mode via an input device (not shown) and the control unit 210 is input. In this case, the number of unidentified light emitting devices A may be output to the output unit 160 and used as reference information for mode determination by the user. The smaller the number of unidentified light emitting devices A, the lower the probability that the unidentified light emitting device A will be imaged in the imaging of the imaging unit 120 at an arbitrary position, so the imaging probability of the unidentified light emitting device A is increased. For this purpose, this reference information is useful.

  However, the mode determination method is not limited to this, and the control unit 210 may determine the mode according to a predetermined rule. For example, the control unit 210 may alternate between the identification mode and the presentation mode. In other words, when the identification process is performed once in the identification mode, the mode may be shifted to the presentation mode so that the user can recognize the identified light emitting device A and the unidentified light emitting device A. Further, for example, the control unit 210 shifts to the presentation mode when the identification process is continuously performed a certain number of times in the identification mode, and allows the user to grasp the identified light emitting device A and the unidentified light emitting device A. Also good.

  First, in the presentation mode, the control unit 210 first identifies a list of identification information of the identified light emitting apparatuses A (hereinafter referred to as an identified list) among the light emitting apparatuses A1 to A29 and identification information of the unidentified light emitting apparatuses A (hereinafter referred to as “identified lists”). At least one of the unidentified lists). For example, the control unit 210 associates the light emitting device list, which is a list of identification information of the light emitting devices A1 to A29, with the installation position and the identification information of each identified light emitting device A among the light emitting devices A1 to A29. By referring to the information, at least one of the identified list and the unidentified list can be acquired. The light emitting device list may be stored in advance in a storage unit (not shown). As the association information, the identification result of the identification unit 130 may be used. However, the light-emitting device A whose lighting / light-off state has never changed does not necessarily correspond to each other, and is inevitably uncorresponding, and the user is unidentified even if the lighting / light-off in the presentation mode is not performed. You can easily find out. For this reason, you may delete the identification information of the light-emitting fixture A which has not changed the lighting-on / off state from the unidentified list.

  Then, the control unit 210 presents the unidentified light-emitting device A to the user by controlling the lighting devices A1 to A29 to be turned on and off via the network 101 according to at least one of the identified list and the unidentified list. For example, in accordance with at least one of the identified list and the unidentified list, the control unit 210 turns on all unidentified light emitting devices A and turns off all identified light emitting devices A, or turns off all unidentified light emitting devices A. At the same time, all the identified light emitting devices A are turned on. Further, for example, the control unit 210 may turn off all the identified light emitting devices A according to at least one of the identified list and the unidentified list, and sequentially turn on or blink all the unidentified light emitting devices A. Good. Further, for example, the control unit 210 regards the identification information specified by the user from the unidentified list as the unidentified list, performs the above-described lighting control, and presents the unidentified light emitting device A to the user. Good.

  However, these lighting on / off control is an example, and if the user can grasp the unidentified light emitting device A, the control unit 210 can adopt various lighting on / off control.

  The user receives the presentation result, groups the light emitting devices A whose installation positions are close to each other in the control unit 210, and holds the identification information of the grouped light emitting devices A as a nearby light emitting device list, whereby the control unit 210 The vicinity light emitting device list may be used for the lighting on / off control of the light emitting devices A1 to A29 in the identification mode.

  In the identification mode, the control unit 210 does not perform the lighting on / off control for the identified light emitting device A among the light emitting devices A1 to A29, and is the point described in the first embodiment for the unidentified light emitting device A. Turn off the light. That is, the control unit 210 performs the above-described lighting on / off control N times in the identification mode.

  Here, when the control unit 210 holds the nearby light emitting device list, the control unit 210 performs the lighting on / off control of the light emitting device A specified by the nearby light emitting device list among the light emitting devices A1 to A29, and the other light emitting devices A. The turning on / off control may not be performed. In this way, since the light emitting devices A that are close to each other are turned on and off, the imaging unit 120 can image many light emitting devices A that are turned on and off at one time, and the number of times of imaging (number of identification processes) can be set. As a result, it is possible to reduce the amount of time required for the hand work.

  The imaging unit 120 performs the imaging described in the first embodiment in N times. However, the imaging unit 120 changes the imaging position every time and performs imaging.

  The identification unit 130 performs the identification described in the first embodiment for each of N times of imaging performed by the imaging unit 120. In addition, since the identification part 130 has acquired the position / posture information of the imaging unit 120 in the previous imaging when the imaging by the imaging unit 120 is performed for the second time or later, a change from the previous position / posture of the imaging unit 120 is obtained. The position / posture information of the current imaging unit 120 may be obtained by estimating the amount. The estimation of the change amount can be realized by using a technique such as SLAM (Simultaneous Localization and Mapping) or dead reckoning. However, even when the imaging unit 120 performs imaging for the second time or later, the position / posture information may be acquired from the imaging unit 120 as in the first embodiment. In addition, when the imaging by the imaging unit 120 is performed for the second time or later, the identification unit 130 includes the current association result (association information) between the identification information of the identified light emitting device A and the installation position up to the previous time. Add results.

  The mapping unit 150 performs the mapping described in the first embodiment for each of N times of imaging performed by the imaging unit 120. However, the mapping unit 150 may perform mapping at the end of N times of imaging instead of mapping for each of N times of imaging by the imaging unit 120.

  FIG. 8 is a diagram illustrating an example of the mapping result of the second embodiment. In the example shown in FIG. 8, elements B1 to B29 indicating the light emitting devices A1 to A29 are mapped on the installation positions of the light emitting devices A1 to A29 on the drawing data of the plan view, respectively, and in the vicinity of the element B1, Identification information (XX-XX-XX-XX-XX-01) of the light emitting device A1 is mapped. In FIG. 8, the mapping of the identification information of the light emitting devices A2 to A29 is not shown.

  In the example illustrated in FIG. 8, five times of imaging (identification processing) are performed in order to identify the light emitting devices A1 to A29. Specifically, the first imaging (identification process) is performed by the imaging unit 120 at the position C1, the second imaging (identification process) is performed by the imaging unit 120 at the position C2, and the imaging is performed at the position C3. The third imaging (identification process) is performed by the unit 120, the fourth imaging (identification process) is performed by the imaging unit 120 at the position C4, and the fifth imaging (identification process) is performed by the imaging unit 120 at the position C5. ) Is done.

  FIG. 9 is a flowchart illustrating an example of a flow of an identification process performed by the identification apparatus 200 according to the second embodiment.

  First, the control unit 210 confirms whether or not the presentation mode is set (step S201).

  When the present mode is the presentation mode (Yes in Step S201), the control unit 210 acquires the association information and the light emitting device list (Step S203), and at least one of the identified list and the unidentified list from the association information and the light emitting device list. And according to at least one of the identified list and the unidentified list, the light emitting devices A1 to A29 are turned on and off between the identified light emitting devices A1 to A29 and the unidentified light emitting devices A. Is turned on / off (step S205). Then, the process returns to step S201.

  On the other hand, when it is not the presentation mode in step S201 (No in step S201), that is, in the identification mode, the processes of steps S207 to S217 are performed, but the processes of steps S207 to S217 are performed except for the above-described differences. This is the same as the processing in steps S101 to S111 in the flowchart shown in FIG.

  Subsequently, in step S219, for example, the control unit 210 updates the unidentified list, and if the identification information is still included in the updated unidentified list, determines that the processing is continued (Yes in step S219), The process returns to step S201.

  On the other hand, when the identification information is not included in the updated unidentified list, the control unit 210 determines that the process ends (No in step S219), and the output unit 160 recognizes the light emitting device A1 that has been identified by the mapping unit 150. When the drawing data in which the installation positions and the identification information of -A29 are mapped is output (step S221), the process ends.

  As described above, according to the second embodiment, the light-emitting device installed in a wide space where a plurality of light-emitting devices installed in the space cannot be imaged at one time is specified at the installation position as in the first embodiment. The light emitting device to be identified and the light emitting device specified by the identification information can be identified by a simple operation, and the time required for the same operation can be shortened.

  Moreover, in 2nd Embodiment, since presentation mode is employ | adopted, even when it is a case where imaging (identification process) is performed in multiple times, a user can grasp | ascertain an unidentified light-emitting device and reduction of the frequency | count of imaging (identification process). Since it can be expected, the time required for the same work can be shortened.

(Modification 1)
In each of the above embodiments, the imaging unit 120 may previously adjust settings such as exposure and white balance so that a change in a change region caused by a change in the light-on / off state of the light emitting device A becomes significant.

(Modification 2)
In each of the above embodiments, the identification unit 130 may limit the detection target region to a part of the captured image in the change region detection process. Specifically, the identification unit 130 uses the position / posture information to calculate an existing area where a plurality of light emitting devices are present in the captured images before and after the change timing, and detects the changed area within the calculated existing area. It may be. For example, when a plurality of light emitting devices are installed on the ceiling as in the above embodiments, the existence area is a ceiling surface. For this reason, the identification part 130 should just calculate a ceiling surface as an existing area in the captured image before and behind a change timing using position and attitude | position information.

  In this way, it is not necessary to detect the change area outside the existence area, and it is possible to reduce false detection, and it is expected that the change area detection processing is speeded up and highly accurate.

(Modification 3)
In each of the above embodiments, the identification unit 130 deletes an unreliable association from the association result between the identification information of each of the plurality of light emitting devices and the installation position of each of the plurality of light emitting devices, It may be notified. For example, when a plurality of installation positions are associated with one identification information or when a plurality of identification information is associated with one installation position, the identification unit 130 associates these Is deleted or notified. If the notification is performed, the user can perform the identification process on the notified installation position again, and can verify the association with low reliability.

(Modification 4)
In the first embodiment, the identification unit 130 may notify the output unit 160 of an unidentified light emitting device when there is an unidentified light emitting device. For example, the output unit 160 may output a list of identification information of unidentified light emitting devices. Further, for example, the presentation mode described in the second embodiment may be adopted, and notification may be performed by turning on, turning off, or blinking an unidentified light-emitting device. Thereby, the user can grasp the unidentified light emitting device and can quickly perform re-identification.

(Modification 5)
In each said embodiment, the identification part 130 acquires the shape information which shows the shape and size of each of several light-emitting fixtures beforehand, and compares with the shape and size of the detected change area | region, and is identification information of a light-emitting fixture. You may make it calculate the reliability of the matching result with an installation position. Then, when the reliability is less than the predetermined threshold, the identification unit 130 deletes the association from the association result, indicates that the reliability of the association is low, or that the imaging by the imaging unit 120 is blurred. May be notified to the output unit 160. As a result, the user can perform the identification process again on the informed installation position and verify the association with low reliability. Note that image blurring by the imaging unit 120 can be detected using position / posture information of the imaging unit 120.

(Modification 6)
When identification information and installation positions of a plurality of light emitting devices are associated with each other by the identification method described in the above embodiments and other methods, the ID of the imaging device arranged to image the irradiation area of the light emitting device Can be automatically associated with the installation position.

  Here, the imaging instrument is an instrument provided with an imaging means, for example, a surveillance camera, but may be any instrument provided with an imaging means, such as an air conditioner with a camera or a human sensor with a camera. May be.

  Specifically, in the same manner as the identification method described in each of the above embodiments, lighting on / off of a plurality of light emitting devices is performed, and the imaging device performs imaging. Here, the brightness of the captured image of the imaging device varies according to the change in the lighting / lighting state of the light emitting device. This variation in brightness is caused by the lighting / lighting state of the light emitting device closest to the imaging region of the imaging device. Maximum when changed. For this reason, the position of the light-emitting device whose lighting state has changed when the variation in the captured image is maximized is associated with the ID of the imaging device as the position of the imaging region of the imaging device.

  Thereby, ID of an imaging device and an imaging region can be matched automatically, and the effort of matching can be reduced.

(Hardware configuration)
An example of the hardware configuration of the identification device of each of the above embodiments and modifications will be described. The identification device of each of the above embodiments and each modification includes a control device such as a CPU, a storage device such as a ROM and a RAM, an external storage device such as an HDD, a display device such as a display, and an input such as a keyboard and a mouse. The apparatus includes a communication apparatus such as a communication interface, and has a hardware configuration using a normal computer.

  The programs executed by the identification devices of the above embodiments and modifications are files in an installable or executable format, such as CD-ROM, CD-R, memory card, DVD (Digital Versatile Disk), and flexible disk. The program is stored in a computer-readable storage medium such as (FD).

  Further, the program executed by the identification device of each of the above embodiments and modifications may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. In addition, the program executed by the identification device of each of the above embodiments and modifications may be provided or distributed via a network such as the Internet. Further, the program executed by the identification device of each of the above embodiments and modifications may be provided by being incorporated in advance in a ROM or the like.

  The program executed by the identification devices of the above embodiments and modifications has a module configuration for realizing the above-described units on a computer. As actual hardware, the CPU reads out a program from the HDD to the RAM and executes the program, whereby the above-described units are realized on the computer.

  It should be noted that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  For example, as long as each step in the flowcharts of the above-described embodiments is not contrary to its nature, the execution order may be changed, a plurality of steps may be performed simultaneously, or may be performed in a different order for each execution.

  As described above, according to each of the above-described embodiments and modifications, it is possible to identify the light-emitting device specified by the installation position and the light-emitting device specified by the identification information with a simple operation.

DESCRIPTION OF SYMBOLS 100,200 Identification apparatus 101 Network 110,210 Control part 120 Imaging part 130 Identification part 150 Mapping part 160 Output part A1-A9 Light-emitting fixture

Claims (1)

Using the identification information of each of the plurality of light emitting devices installed in the space, a control unit that individually controls the turning on and off of the plurality of light emitting devices via a network,
An imaging unit that images the space in time series and obtains a time-series captured image;
Using the control content of turning on and off of the plurality of light emitting devices and the time-series captured images, the installation positions of the plurality of light emitting devices are specified, and the plurality of light emitting devices specified by the plurality of installation positions An identification unit for identifying each of the plurality of light emitting devices identified by the plurality of pieces of identification information;
An identification device comprising:

Images