Patent Publication Number: US-10327315-B2

Title: Lighting apparatus and lighting system supporting a mesh network

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application is a continuation of U.S. patent application Ser. No. 15/401,268 filed on Jan. 9, 2017 and claims the benefit of priority of Japanese Patent Application Number 2016-003942 filed on Jan. 12, 2016, the entire content of which is hereby incorporated by reference. 
    
    
     BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a lighting apparatus which forms a mesh network with another lighting apparatus, and a lighting system. 
     2. Description of the Related Art 
     Conventionally, a lighting system is known in which lighting apparatuses having communications capabilities form a mesh network. The mesh network refers to a network in which the lighting apparatuses construct wireless communication paths therebetween. 
     As one lighting system of this kind, Japanese Unexamined Patent Application Publication No. 2014-60078 (Patent Literature 1) discloses a lighting system which includes lighting apparatuses each of which includes a wireless device, wireless terminals which communicate with the lighting apparatuses, and a management server which manages the lighting apparatuses. In the lighting system, adjacent lighting apparatuses are communicable with each other and the lighting apparatuses form a mesh network. In the lighting system, the lighting apparatuses are dimmed properly for a user who is holding one of the wireless terminals, based on location information of a user. 
     SUMMARY 
     In the lighting system disclosed in Patent Literature 1, the management server transmits a command for dimming a lighting apparatus via other lighting apparatuses, that is, using a communication path of the mesh network. However, a problem with the mesh network is that, for example, when a lighting apparatus is no longer participating in the mesh network for some reason, it is difficult for the mesh network to cause the lighting apparatus to re-participate in the mesh network. Moreover, it is difficult for the user to directly touch and repair a lighting apparatus promptly, due to the fact that the lighting apparatus is installed on the ceiling of a building or the temperature of the lighting apparatus has been increased through use. 
     Thus, the present disclosure provides a lighting apparatus, etc. which increase communication paths for the lighting apparatus to wirelessly communicate with another lighting apparatus, and allow the lighting apparatus to select a proper communication path according to need among the communication paths. 
     One aspect of the lighting apparatus according to the present disclosure includes: an apparatus communicator which wirelessly transmits and receives information on operation of the lighting apparatus; and an apparatus controller which interprets a mesh profile which is a communications protocol for the lighting apparatus to transmit and receive the information to and from another lighting apparatus and a communication terminal forming a mesh network, and a user profile which is a communications protocol for the lighting apparatus and the communication terminal to communicate with each other, the user profile being uniquely set for the lighting apparatus by the communication terminal, and executes a command corresponding to the mesh profile and received from the other lighting apparatus, and a command corresponding to the user profile and received from the communication terminal. 
     One aspect of a lighting system according to the present disclosure includes a plurality of the lighting apparatuses. 
     Communication paths for the lighting apparatus to wirelessly communicate with another lighting apparatus can be increased and the lighting apparatus is allowed to select a proper communication path according to need among the communication paths. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The figures depict one or more implementations in accordance with the present teaching, by way of examples only, not by way of limitations. In the figures, like reference numerals refer to the same or similar elements. 
         FIG. 1  is a diagram illustrating a lighting system and lighting apparatuses according to Embodiment 1, showing an example of a mesh network configured of the lighting apparatuses; 
         FIG. 2  is a diagram illustrating an example of the appearance of the lighting apparatuses according to Embodiment 1; 
         FIG. 3  is a block diagram illustrating a control configuration of the lighting apparatuses according to Embodiment 1; 
         FIG. 4  is a block diagram of a control configuration of a communication terminal which communicates with the lighting apparatuses according to Embodiment 1; 
         FIG. 5  is a diagram illustrating a relationship between the mesh network and the lighting apparatuses according to Embodiment 1, showing (a) a state in which a certain lighting apparatus is not participating in the mesh network, (b) a state in which the lighting apparatus not participated in the mesh network is communicating with the communication terminal, and (c) a state in which the lighting apparatus has re-participated in the mesh network; 
         FIG. 6  is a flowchart illustrating a manner of causing the lighting apparatus not participating in the mesh network to participate in the mesh network; 
         FIG. 7  is a block diagram of a control configuration of lighting apparatuses according to Embodiment 2; and 
         FIG. 8  is a diagram illustrating relationship between a mesh network and the lighting apparatuses according to Embodiment 2, showing (a) a state in which a certain lighting apparatus is participating in the mesh network, (b) a state in which the lighting apparatus is reset through communication paths of the mesh network, and (c) a relationship between the mesh network and the lighting apparatus restored to a default state. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Hereinafter, a lighting apparatus and a lighting system according to embodiments of the present disclosure are described with reference to the accompanying drawings. The embodiments described below are each merely one specific example of the present disclosure. Thus, values, shapes, materials, components, and arrangement and connection between the components shown in the following embodiments are merely by way of illustration and not intended to limit the present disclosure. Therefore, among the components in the embodiments below, components not recited in any one of the independent claims defining the most generic part of the inventive concept of the present disclosure are described as arbitrary components. 
     The figures are schematic views and do not necessarily illustrate the present disclosure precisely. In the figures, the same reference sign is used to refer to substantially the same configuration, and thus duplicate description is omitted or simplified. 
     Embodiment 1 
       FIG. 1  is a diagram illustrating lighting system  100  and lighting apparatuses  10   a ,  10   b ,  10   c ,  10   d ,  10   e , and  10   f  according to Embodiment 1, showing an example of mesh network  20  which includes lighting apparatuses  10   a  to  10   f.    
     Lighting system  100  includes lighting apparatuses  10   a  to  10   f  having communications capabilities. In lighting system  100 , adjacent lighting apparatuses (e.g., lighting apparatuses  10   c  and  10   f ), among lighting apparatuses  10   a  to  10   f , communicate with each other to construct a wireless communication path therebetween and form mesh network  20 . Lighting apparatuses  10   a  to  10   f  are also communicatively coupled with communication terminal  50  such as a tablet. 
       FIG. 2  is a diagram illustrating an example of the appearance of each of lighting apparatuses  10   a  to  10   f .  FIG. 3  is a block diagram of a control configuration of each of lighting apparatuses  10   a  to  10   f.    
     Lighting apparatuses  10   a  to  10   f  are, for example, ceiling lights as illustrated in  FIG. 2 , and installed in a building part (e.g., ceiling) of a building such as a house. Lighting apparatuses  10   a  to  10   f  each include apparatus body  15  and globe  16  which covers apparatus body  15 . Globe  16  is formed of a light-transmissive resin material. Apparatus body  15 , as illustrated in  FIG. 3 , includes light source  11 , apparatus communicator  12 , and apparatus controller  13 . 
     Light source  11 , for example, includes light-emitting diodes each of which emits white light, red light, green light, or blue light. Dimming and a color of the light emitted by light source  11  are controlled by apparatus controller  13 . 
     Apparatus communicator  12  includes an antenna and a wireless communication circuit. Apparatus communicator  12  included in a lighting apparatus wirelessly transmits and receives information on operations of lighting apparatuses  10   a  to  10   f  to and from another lighting apparatus. For example, lighting apparatus  10   c  is communicable with lighting apparatuses  10   a ,  10   e , and  10   f  located adjacent to lighting apparatus  10   c . The communications are performed according to a communication scheme in which the communications are performed in 2.4-GHz frequency band, such as Bluetooth (registered trademark) specified in IEEE802.15.1 standard. Apparatus communicators  12  included in lighting apparatuses  10   a  to  10   f  are communicable with communication terminal  50  as well. 
     Apparatus controller  13  includes, for example, a CPU, a RAM, and a ROM storing a program. In the present embodiment, apparatus controller  13  has mesh profile m 1  and user profile u 1 . Mesh profiles m 1  are communications protocols for lighting apparatuses  10   a  to  10   f  to transmit and receive signals to and from another lighting apparatus and communication terminal  50 . Lighting apparatuses  10   a  to  10   f  form mesh network  20 . User profiles u 1  are communications protocols for lighting apparatuses  10   a  to  10   f  and communication terminal  50  to communicate with each other. User profile u 1  is uniquely set for each lighting apparatus by communication terminal  50 . 
     Mesh profile m 1  includes authentication information including an address assigned for each of lighting apparatuses  10   a  to  10   f  and a cryptographic key for the network. In apparatus controller  13 , the authentication information including the address and cryptographic key is deletable or modifiable. 
     Mesh profiles m 1  also include commands for controlling operations of lighting apparatuses  10   a  to  10   f , the operations including the dimming, color controlling, scenes, and schedules of light sources  11  included in lighting apparatuses  10   a  to  10   f . Lighting apparatuses  10   a  to  10   f  are each operated according to a command corresponding to mesh profile m 1 . The command corresponding to mesh profile m 1  is transmitted from communication terminal  50  via a communication path of mesh network  20 . For example, lighting apparatus  10   a  receives, by apparatus communicator  12 , the command corresponding to mesh profile m 1  and transmitted from communication terminal  50 , and causes apparatus controller  13  to execute the command corresponding to mesh profile m 1 . At the same time, lighting apparatus  10   a  causes apparatus communicator  12  to transmit to lighting apparatuses  10   b  and  10   c  located adjacent to lighting apparatus  10   a , the command corresponding to mesh profile m 1  that has been transmitted to lighting apparatus  10   a.    
     It should be noted that lighting apparatuses  10   a  to  10   f  according to the present embodiment each receive not only the information but also a command corresponding to user profile u 1  and transmitted from communication terminal  50  via the communication path of mesh network  20 . Lighting apparatus  10   a  to  10   f  each cause apparatus controller  13  to execute the command corresponding to user profile u 1  and received by apparatus communicator  12 . 
     For example, the commands corresponding to user profiles u 1  include reset commands which initialize configurations of lighting apparatuses  10   a  to  10   f  to cause lighting apparatuses  10   a  to  10   f  to be ready to participate in mesh network  20 . 
     In contrast, the commands corresponding to mesh profiles m 1  do not include the reset commands which initialize the configurations of lighting apparatuses  10   a  to  10   f  to cause lighting apparatuses  10   a  to  10   f  to be ready to participate in mesh network  20 . For that reason, lighting apparatuses  10   a  to  10   f  can be reset directly by communication terminal  50  by using user profiles u 1 , but are not reset indirectly by using mesh profiles m 1 . This reduces chances of inadvertent resetting of lighting apparatuses  10   a  to  10   f.    
       FIG. 4  is a block diagram of a control configuration of communication terminal  50  which communicates with lighting apparatuses  10   a  to  10   f.    
     Communication terminal  50  includes operation key  54 , display  51 , terminal communicator  52 , and terminal controller  53 . 
     Operation key  54  is, for example, a touch panel for selecting or inputting commands for operating lighting apparatuses  10   a  to  10   f . Display  51  is, for example, a liquid crystal monitor for displaying states of individual lighting apparatuses  10   a  to  10   f  and as to whether they are participating or not participating in mesh network  20 . 
     Terminal communicator  52  includes an antenna and a wireless communication circuit. Terminal communicator  52  is communicable with lighting apparatuses  10   a  to  10   f  that are within a predetermined distance. Terminal communicator  52  communicates with lighting apparatuses  10   a  to  10   f  at a frequency different from the frequency of mesh network  20 , using a communication scheme which is, for example, Bluetooth (registered trademark). 
     Terminal controller  53  includes, for example, a CPU, a RAM, and a ROM. Terminal controller  53  has mesh profile m 2  and user profile u 2 . Mesh profile m 2  is a communications protocol and has functionality common to mesh profiles m 1  of lighting apparatuses  10   a  to  10   f . User profile u 2  is a communications protocol and has functionality common to user profiles u 1  of lighting apparatuses  10   a  to  10   f.    
     Mesh profile m 2  includes authentication information including an address assigned for each of lighting apparatuses  10   a  to  10   f  and a cryptographic key for the network. The authentication information including the address and cryptographic key can be input via operation key  54 . Mesh profile m 2  also includes commands for controlling operations of lighting apparatuses  10   a  to  10   f , the operations including the dimming, color controlling, scenes, and schedules of light sources  11  included in lighting apparatuses  10   a  to  10   f . Communication terminal  50  can operate individual lighting apparatuses  10   a  to  10   f , based on the commands included in mesh profile m 2 . 
     The commands corresponding to user profiles u 2  include reset commands which initialize configurations of individual lighting apparatuses  10   a  to  10   f  to cause lighting apparatuses  10   a  to  10   f  to be ready to participate in mesh network  20 . 
     Next, referring to  FIGS. 5 and 6 , a method for causing lighting apparatus  10   f  not participating in mesh network  20  to re-participate in mesh network  20  is described. 
       FIG. 5  illustrates (a) a state in which lighting apparatus  10   f  is not participating in mesh network  20 , (b) a state in which lighting apparatus  10   f  not participated in mesh network  20  is communicating with communication terminal  50 , and (c) a state in which lighting apparatus  10   f  has re-participated in mesh network  20 .  FIG. 6  is a flowchart illustrating a manner of causing lighting apparatus  10   f  not participating in mesh network  20  to participate in mesh network  20 . 
     As illustrated in (a) of  FIG. 5 , if the cryptographic key of lighting apparatus  10   f  among lighting apparatuses  10   a  to  10   f  is unintentionally modified for some reason, lighting apparatus  10   f  may end up not participating in mesh network  20  and thus no longer form part of mesh network  20  ( 51  of  FIG. 6 ). Since lighting apparatus  10   f  is already disconnected from mesh network  20 , even though lighting apparatus  10   f  is desired to participate in mesh network  20 , mesh network  20  itself cannot restore the communication path for lighting apparatus  10   f  to cause lighting apparatus  10   f  to participate in mesh network  20 . 
     Thus, as illustrated in (b) of  FIG. 5 , lighting apparatus  10   f  is caused to participate in mesh network  20  through a communication path between communication terminal  50  and lighting apparatus  10   f . Initially, communication terminal  50  transmits to lighting apparatus  10   f  the reset command corresponding to user profile u 1 . This results in lighting apparatus  10   f  receiving the reset command (S 2  of  FIG. 6 ). 
     Lighting apparatus  10   f  having received the reset command sets the configuration of lighting apparatus  10   f  to be ready to participate in the network (S 3  of  FIG. 6 ). Specifically, initially, the current configuration of lighting apparatus  10   f  is reset (initialized) (S 31  of  FIG. 6 ). The resetting deletes the information on the operation of lighting apparatus  10   f , and the authentication information, including the address and cryptographic key, which is stored in apparatus controller  13  included in lighting apparatus  10   f.    
     Next, association configuration (configuration to participate in mesh network  20 ) is carried out on lighting apparatus  10   f  having been reset (S 32  of  FIG. 6 ). Specifically, apparatus communicator  12  included in lighting apparatus  10   f  sends out a beacon for externally notifying that lighting apparatus  10   f  needs association configuration. It should be noted that lighting apparatus  10   f  is in a full-on state while sending out the beacon. 
     When communication terminal  50  receives the beacon sent out from lighting apparatus  10   f , communication terminal  50  displays, on display  51 , an indication indicating that lighting apparatus  10   f  is requesting for association configuration, and obtains, from the beacon, a unique device identifier (UDID) of lighting apparatus  10   f . Communication terminal  50  then performs a predetermined operation, and thereby transmits to lighting apparatus  10   f  the authentication information (such as an address and a cryptographic key) for causing lighting apparatus  10   f  to participate in mesh network  20 , using the command corresponding to user profile u 2 . The authentication information is associated with the UDID. 
     Lighting apparatus  10   f  having received the authentication information executes the command corresponding to user profile u 1 , the authentication information including the address and cryptographic key is written to apparatus controller  13 . This restores the configuration of lighting apparatus  10   f  to the default state which is a configuration state of lighting apparatus  10   f  when previously participated in mesh network  20 . Lighting apparatus  10   f  restored to the default state ceases from sending out the beacon. 
     Then, as illustrated in (c) of  FIG. 5 , communication path  20   a  is formed between lighting apparatus  10   f  and lighting apparatus  10   c  adjacent to lighting apparatus  10   f , and lighting apparatus  10   f  participates in mesh network  20  (S 4   FIG. 6 ). Lighting apparatus  10   f  participating in mesh network  20  is operated and controlled, using the command corresponding to mesh profile m 1 . 
     As described above, lighting apparatuses  10   a  to  10   f  according to the present embodiment each include: apparatus communicator  12  which wirelessly transmits and receives information on operations of lighting apparatuses  10   a  to  10   f ; and apparatus controller  13  which has: mesh profile m 1  which is a communications protocol for lighting apparatuses  10   a  to  10   f  to transmit and receive the information to and from another lighting apparatus and communication terminal  50 , each of lighting apparatuses  10   a  to  10   f  and the other lighting apparatus forming mesh network  20 ; and user profile u 1  which is a communications protocol for each of lighting apparatuses  10   a  to  10   f  and communication terminal  50  to communicate with each other, user profile u 1  being uniquely set for each of lighting apparatuses  10   a  to  10   f  by communication terminal  50 . Apparatus controller  13  executes a command corresponding to mesh profile m 1  and received from the other lighting apparatus, and a command corresponding to user profile u 1  and received from communication terminal  50 . 
     According to the above configuration, in order to operate a certain lighting apparatus (e.g., lighting apparatus  10   f ), options are selectable between either operating the lighting apparatus by using mesh profile m 1  common to mesh profiles m 1  of the other lighting apparatuses (e.g., lighting apparatuses  10   a  to  10   e ) or operating the lighting apparatus by using user profile u 1  common to user profile u 2  included in communication terminal  50 . This allows a proper communication path to be selected according to need for wireless communications with lighting apparatuses  10   a  to  10   f . Moreover, even when lighting apparatuses  10   a  to  10   f  are installed on the ceiling of a building or the temperatures thereof have been increased through use, lighting apparatuses  10   a  to  10   f  can be restored to the default states via wireless communications. 
     Moreover, the commands corresponding to user profiles u 1  may include reset commands for initializing configurations of lighting apparatuses  10   a  to  10   f  to cause lighting apparatuses  10   a  to  10   f  to be ready to participate in mesh network  20 , and the command corresponding to mesh profile m 1  may not include the reset command. 
     According to the above configuration, when resetting the certain lighting apparatus (e.g., lighting apparatus  10   f ), the other lighting apparatuses (e.g., lighting apparatuses  10   a  to  10   e ) are not reset through communication paths of mesh network  20 . This results in reducing chances of inadvertent resetting of the other lighting apparatuses. 
     Moreover, when lighting apparatus  10   f  is disconnected from and no longer forming part of mesh network  20  with the other lighting apparatus, apparatus controller  13  may cause lighting apparatus  10   f  no longer forming part of mesh network  20  to participate in mesh network  20  by using the command corresponding to user profile u 1 . 
     This allows directly restoring the lighting apparatus (e.g., lighting apparatus  10   f ) disconnected from mesh network  20  to the default state by using communication terminal  50  having user profile u 2 , and causing the lighting apparatus to re-participate in mesh network  20 . 
     Moreover, lighting system  100  according to the present embodiment includes lighting apparatuses  10   a  to  10   f.    
     According to the above configuration, in order to operate a certain lighting apparatus (e.g., lighting apparatus  10   f ) included in lighting system  100 , options are selectable between either operating the lighting apparatus by using mesh profile m 1  common to the other lighting apparatuses (e.g., lighting apparatuses  10   a  to  10   e ) or operating the lighting apparatus by using user profile u 1  common to communication terminal  50 . This allows a proper communication path to be selected according to need for wireless communications with lighting apparatuses  10   a  to  10   f  included in lighting system  100 . 
     Embodiment 2 
     Lighting apparatuses  30   a ,  30   b ,  30   c ,  30   d ,  30   e , and  30   f  ( FIG. 7 ) according to Embodiment 2 are each given a command from another lighting apparatus through a communication path of mesh network  20 , rather than being given the command directly from communication terminal  50 . 
     Lighting system  100 A according to Embodiment 2 includes lighting apparatuses  30   a  to  30   f  which have communications capabilities (see (a) of  FIG. 8 ). In lighting system  100 A, adjacent lighting apparatuses (e.g., lighting apparatuses  30   b  and  30   d ), among lighting apparatuses  30   a  to  30   f , communicate with each other to construct a wireless communication path therebetween and form mesh network  20 . Lighting apparatuses  30   a  to  30   f  are also communicatively coupled with communication terminal  50  such as a tablet. 
       FIG. 7  is a block diagram of a control configuration of lighting apparatuses  30   a  to  30   f.    
     Lighting apparatuses  30   a  to  30   f  each include light source  11 , apparatus communicator  12 , and apparatus controller  13 . 
     Apparatus controller  13  has mesh profile m 1   a  and user profile u 1 . Mesh profiles m 1   a  are communications protocols for lighting apparatuses  30   a  to  30   f  to transmit and receive signals to and from communication terminal  50 . Lighting apparatuses  30   a  to  30   f  form mesh network  20 . User profiles u 1  are communications protocols for lighting apparatuses  30   a  to  30   f  and communication terminal  50  to communicate with each other. User profile u 1  is uniquely set for each lighting apparatus by communication terminal  50 . 
     Mesh profiles m 1   a  include authentication information including addresses assigned for lighting apparatuses  30   a  to  30   f  and a cryptographic key for the network. 
     Mesh profiles m 1   a  also include commands for controlling operations of lighting apparatuses  30   a  to  30   f , the operations including the dimming, color controlling, scenes, and schedules of light sources  11  included in lighting apparatuses  30   a  to  30   f . Lighting apparatuses  30   a  to  30   f  are each operated according to a command corresponding to mesh profile m 1   a . The command corresponding to mesh profile m 1   a  is transmitted from communication terminal  50  via a communication path of mesh network  20 . 
     Lighting apparatuses  30   a  to  30   f  according to the present embodiment have commands corresponding to mesh profiles m 1   a  and commands corresponding to user profiles u 1 , the commands corresponding to mesh profiles m 1   a  and the commands corresponding to user profiles u 1  including reset commands which set the configurations of lighting apparatuses  30   a  to  30   f  to default states. It should be noted that the default state refers to a configuration state for each of lighting apparatuses  30   a  to  30   f  when previously participated in mesh network  20 . 
     Similar to as shown in  FIG. 4 , communication terminal  50  includes operation key  54 , display  51 , terminal communicator  52 , and terminal controller  53 . 
     Terminal controller  53  has mesh profile m 2  and user profile u 2 . Mesh profile m 2  is a communications protocol and has functionality common to mesh profiles m 1   a  of lighting apparatuses  30   a  to  30   f . User profile u 2  is a communications protocol and has functionality common to user profiles u 1  of lighting apparatuses  30   a  to  30   f . To be more specific, commands corresponding to mesh profiles m 2  and user profiles u 2  include the reset commands which set the configurations of lighting apparatuses  30   a  to  30   f  to the default states. 
     Lighting apparatuses  30   a  to  30   f  according to the present embodiment each receive, by apparatus communicator  12 , not only the information but also a command corresponding to user profile u 1  via the communication path of mesh network  20 . The command corresponding to user profile u 1  is transmitted from communication terminal  50 . Lighting apparatus  10   a  to  10   f  each cause apparatus controller  13  to execute the command corresponding to user profile u 1 . 
     In the present embodiment, however, not only the commands corresponding to user profiles u 1  but also the commands corresponding to mesh profiles m 1   a  include the reset commands which set the configurations of lighting apparatuses  30   a  to  30   f  to the default states. For that reason, for example, by transmitting the reset command to nearby lighting apparatus  30   a , communication terminal  50  can set distant lighting apparatus  30   f  to the default state using the reset command included in mesh profile m 1   a  included in lighting apparatus  30   f.    
     Next, referring to  FIG. 8 , a method for resetting lighting apparatus  30   f  participating in mesh network  20  is described. 
       FIG. 8  illustrates (a) a state in which lighting apparatus  30   f  is participating in mesh network  20 , (b) a state in which lighting apparatus  30   f  is reset through communication paths of mesh network  20 , and (c) a relationship between mesh network  20  and lighting apparatus  30   f  restored to the default state. 
     As illustrated (a) of  FIG. 8 , lighting apparatus  30   f  among lighting apparatuses  30   a  to  30   f  may, for some reason, perform an operation unintended by a user. “Operation unintended by a user,” as used herein, refers to a case, for example, where the light of lighting apparatus  30   a  is different in intensity or color from those of lighting apparatuses  30   a  to  30   e . If lighting apparatus  30   f  is near communication terminal  50 , lighting apparatus  30   f  can be reset to be restored to the default state directly by using communication terminal  50  as described above in relation to Embodiment 1. If lighting apparatus  30   f  is distant from communication terminal  50 , the user needs to move communication terminal  50  to a location close to lighting apparatus  30   f . This is laborious and time-consuming. 
     Thus, as illustrated in (b) of  FIG. 8 , lighting apparatus  30   f  is reset to the default state, using a communication path of mesh network  20 . Initially, communication terminal  50  transmits the reset command included in mesh profile m 1   a  to lighting apparatus  30   a . The reset command is transferred to lighting apparatus  30   f  via lighting apparatus  30   a  and lighting apparatus  30   c  forming mesh network  20 . To be more specific, lighting apparatus  30   f  receives the reset command included in mesh profile m 1   a  via lighting apparatuses  30   a  and  30   c  that are different from lighting apparatus  30   f.    
     Lighting apparatus  30   f  having received the reset command sets the configuration of lighting apparatus  30   f  to the default state. Specifically, the current configuration (dimming, color controlling, etc.) of lighting apparatus  30   f  is set to the default state. It should be noted that the address and cryptographic key stored in apparatus controller  13  included in lighting apparatus  30   f  are retained without being deleted. 
     This allows the operation of lighting apparatus  30   f  restored to the default state to be controlled again, as with lighting apparatuses  30   a  to  30   e , using the command corresponding to mesh profile m 1   a  as illustrated in (c) of  FIG. 8 . 
     It should be noted that in order to reset lighting apparatus  30   f , the address and cryptographic key stored in apparatus controller  13  included in lighting apparatus  30   f  may be deleted. Even after the address and cryptographic key are deleted, communication terminal  50  can restore lighting apparatuses  30   a  to  30   f  to the default states by associating with lighting apparatuses  30   a  to  30   f  through exchanging public keys and thereafter assigning lighting apparatuses  30   a  to  30   f  with addresses and cryptographic keys. Moreover, as with S 32  in  FIG. 6  in Embodiment 1, the association configuration can be carried out on lighting apparatus  30   f , using user profile u 2  of communication terminal  50 . 
     As described above, lighting apparatuses  30   a  to  30   f  according to the present embodiment each include: apparatus communicator  12  which wirelessly transmits and receives information on operations of lighting apparatuses  30   a  to  30   f ; and apparatus controller  13  which has: mesh profile m 1   a  which is a communications protocol for lighting apparatuses  30   a  to  10  to transmit and receive the information to and from another lighting apparatus and communication terminal  50 , each of lighting apparatuses  30   a  to  10  and the other lighting apparatus forming mesh network  20 ; and user profile u 1  which is a communications protocol for each of lighting apparatuses  30   a  to  30   f  and communication terminal  50  to communicate with each other, user profile u 1  being uniquely set for each of lighting apparatuses  30   a  to  30   f  by communication terminal  50 . Apparatus controller  13  executes a command corresponding to mesh profile m 1   a  and received from the other lighting apparatus, and a command corresponding to user profile u 1  and received from communication terminal  50 . 
     According to the above configuration, in order to operate a certain lighting apparatus (e.g., lighting apparatus  30   f ), options are selectable between operating the lighting apparatus by using mesh profile m 1   a  common to mesh profiles m 1  of the other lighting apparatuses (e.g., lighting apparatuses  30   a  to  30   e ) or operating the lighting apparatus by using user profile u 1  common to communication terminal  50 . This allows a proper communication path to be selected according to need for wireless communications with lighting apparatuses  30   a  to  30   f . Moreover, even when lighting apparatuses  30   a  to  30   f  are installed on the ceiling of a building or the temperatures thereof have been increased through use, lighting apparatuses  30   a  to  30   f  can be restored to the default states via wireless communications. 
     Moreover, the command corresponding to mesh profile m 1   a  and the command corresponding to user profile u 1  may include reset commands for changing configurations of lighting apparatuses  30   a  to  30   f  to the default states. 
     According to the above configuration, the certain lighting apparatus (e.g., lighting apparatus  30   f ) can be reset not only by using the command corresponding to user profile u 1 , but also by using the command corresponding to mesh profile m 1   a , thereby allowing an increase in options for resetting lighting apparatuses  30   a  to  30   f.    
     Moreover, apparatus communicator  12  may receive from the other lighting apparatus the reset command corresponding to mesh profile m 1   a , and apparatus controller  13  may execute the reset command corresponding to mesh profile m 1   a.    
     According to this configuration, for example, distant lighting apparatus  30   f  can be restored to the default state using the reset command corresponding to mesh profile m 1   a  included in lighting apparatus  30   f , by transmitting the reset command to lighting apparatus  30   a.    
     While the present embodiment has been described with reference to restoring lighting apparatus  30   f  to the default states with reference to  FIG. 8 , the present embodiment is not limited thereto. For example, the present disclosure may be used to restore lighting apparatus  30   a  to the default state when lighting apparatus  30   a  participating in mesh network  20  does not conform with lighting apparatuses  30   b  to  30   f  in terms of dimming or color controlling. 
     While lighting apparatuses  10   a  to  10   f ,  30   a  to  30   f  and lighting system  100 ,  100 A have been described with reference to the embodiments, the present disclosure is not limited to the above embodiments. For example, various modifications to the embodiments according to the present disclosure described above that may be conceived by a person skilled in the art and embodiments implemented by any combination of the components and functions shown in the above embodiments are also included within the scope of the present disclosure, without departing from the spirit of the present disclosure. 
     For example, while lighting apparatuses  10   a  to  10   f  are operated by commands included in communication terminal  50  in Embodiment 1, the present disclosure is not limited thereto. Lighting system  100  may include a management server which manages lighting apparatuses  10   a  to  10   f  and the management server may operate lighting apparatuses  10   a  to  10   f  by commands corresponding to a mesh profile of the management server. 
     Moreover, while mesh profile m 2  of terminal controller  53  does not include the reset command in Embodiment 1, the present disclosure is not limited thereto. Mesh profile m 2  of terminal controller  53  may include the reset command. Since the reset commands corresponding to mesh profiles m 1  are not executed in lighting apparatuses  10   a  to  10   f  in Embodiment 1, there is no problem with transmitting the reset command according to mesh profile m 2  of terminal controller  53 . 
     Moreover, while Embodiment 1 has been described with reference to a mesh network being formed of adjacent lighting apparatuses (e.g., lighting apparatuses  10   c  and  100 , the present disclosure is not limited thereto. The mesh network may be formed between lighting apparatuses  10   a  to  10   f  equivalent to a predetermined number of hops within the range of wirelessly communication. 
     Moreover, while Embodiments 1 and 2 have been described with reference to Bluetooth (registered trademark) as the communication scheme, the present disclosure is not limited thereto. A communication scheme such as WiFi (registered trademark), infrared communications, Wi-SUN, or Zigbee may be used. 
     Moreover, while Embodiment 1 has been described with reference to lighting apparatuses  10   a  to  10   f  being ceiling lights, the present disclosure is not limited thereto. Lighting apparatuses  10   a  to  10   f  may be LED base lights or LED down lights, or other types of lighting without departing from the intended scope of the present disclosure. 
     While the foregoing has described one or more embodiments and/or other examples, it is understood that various modifications may be made therein and that the subject matter disclosed herein may be implemented in various forms and examples, and that they may be applied in numerous applications, only some of which have been described herein. It is intended by the following claims to claim any and all modifications and variations that fall within the true scope of the present teachings.