Method and a device for controlling a home wireless system

• US 10,447,502 B2
• Filed: 03/08/2013
• Issued: 10/15/2019
• Est. Priority Date: 03/12/2012
• Status: Active Grant

• Current Assignee: Verisure Sarl (Verisure Midholding AB)
• Original Assignee: Verisure Sarl (Verisure Midholding AB)
• Inventors: Hederstierna, Fredrik, Munts, Philip Alan
• Primary Examiner(s): Vu, Tuan A
• Application Number:
  US14/382,627
• Publication Number:
  US 20150018987A1
• Time in Patent Office: 2,412 Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2807 Exchanging configuration information on appliance services in a home automation network arrangements for maintenance or administration involving network analysis for automatically determining the actual topology of a network H04L41/12; hardware or software tools for network management using graphical user interfaces H04L41/22; address allocation H04L61/50
• CPC Class Codes: H04L 12/2816 Controlling appliance services of a home automation network by calling their functionalities arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station; in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 12/2823 Reporting information sensed by appliance or service execution status of appliance services in a home automation network device-related reporting H04L43/065; arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/2841 Wireless
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A home wireless system and a method of controlling it wherein the home wireless system comprises a plurality of wireless peripheral nodes and a first gateway having a wireless communication means for communicating with and controlling wireless peripheral nodes. The method comprises: a) installing at least one second gateway in said home wireless system, b) binding wireless peripheral nodes to said first gateway or anyone of said at least second gateway,c) each wireless peripheral node repeatedly sending messages to the bound gateway, d) said bound gateway sending an acknowledge message as a response to the message received from the wireless peripheral node, e) each wireless peripheral node initiating a searching process for an available gateway among said first and said at least one second gateway if not receiving an acknowledge message from the bound gateway, said searching process including a link establishment process, and f) proceeding said link establishment process in a responding gateway by binding said searching wireless peripheral node to communicate with the responding gateway. The at least one second gateway is provided with wireless communication means for communicating with and controlling wireless peripheral nodes.

Claims

1. A method of controlling a wireless home alarm system wherein the wireless home alarm system comprises a plurality of wireless peripheral alarm detectors, said peripheral wireless alarm detectors comprising at least a first infrared detector and at least a first perimeter alarm detector, and a first gateway having wireless communication means for communicating wirelessly with and for controlling associated wireless peripheral alarm detectors, the method implemented with at least one processor coupled to memory-stored instructions, which when executed by the at least one processor, cause the processor to perform the method, comprising the steps:

a) installing at least one second gateway in said home wireless system, the second gateway having wireless communication means for communicating wirelessly with and for controlling wireless peripheral alarm detectors,

b) at least one of said first gateway and said at least one second gateway repeatedly connecting to a central monitoring station comprising data storing means storing installation data, and wherein said central monitoring station updates at least one of said first gateway and said at least one second gateway when installation data are changed;

c) performing an initial link establishment process to bind each of the wireless peripheral alarm detector with either the first gateway or the at least one second gateway, the initial link establishment process comprising the steps of;

i) broadcasting an identification message from each peripheral wireless node searching for a controlling gateway;

ii) receiving in each of said first gateway and said at least one second gateway said identification signal;

iii) applying in each of said first gateway and said at least one second gateway receiving said identification message a metric and calculating on the basis of said metric a delay in each of said first gateway and said at least one second gateway;

iv) sending after said delay from each of said first gateway and said at least one second gateway a login request message;

v) completing said initial link establishment process by responding in said peripheral wireless alarm detector to the login request message received from the gateway responding after the shortest delay with a login response signal, said peripheral wireless alarm detector then being bound to that gateway responding with the login request message and communicating only with that gateway until a subsequent link establishment process is initiated in step c);

d) each peripheral wireless alarm detector repeatedly sending messages to its assigned gateway;

e) each assigned gateway sending an acknowledge message as a response to messages from its peripheral wireless alarm detector;

f) initiating a subsequent link establishment process after the initial link establishment process of step b) to bind a wireless peripheral alarm detector not receiving an acknowledge message in step d) from its assigned gateway to another gateway,

the subsequent link establishment process comprising the steps of;

i) broadcasting an identification message from the peripheral wireless alarm detector not receiving an acknowledge message from its assigned gateway;

ii) receiving in a gateway not initially assigned to the peripheral alarm detector said identification signal broadcast in step f)i);

iii) sending from a gateway not initially assigned to the wireless peripheral alarm detector a login request message including a temporary session encryption key;

iv) completing said subsequent link establishment process by sending a login response message by said peripheral wireless alarm detector to the login request message received from the gateway in step f)iii)

v) using the temporary session encryption key received, said peripheral wireless alarm detector then being bound to that gateway and communicating only with that gateway until a subsequent link establishment process is initiated in step f.

2. A method as claimed in claim 1, further including the step of including in the identification message node address data and transmitting from the responding gateway a login request message including said node address data.

3. A method as claimed in claim 1, wherein said first gateway and said at least one second gateway repeatedly broadcast an installation data message, so as to allow an updated gateway to update other gateways present in the home wireless system.

4. A home wireless system comprising a plurality of wireless peripheral nodes, and a first gateway having wireless communication means for communicating with and controlling wireless peripheral nodes, and at least one second gateway having wireless communication means for communicating with and controlling wireless peripheral nodes, each gateway comprising a central unit with memory means for maintaining temporary encryption keys, wherein each wireless peripheral node implements said home alarm system in form of a wireless alarm detector, and is bound to either of said first gateway and said at least one second gateway by using a temporary encryption key received from the gateway it is hound to in all communications in both directions, wherein binding a initial gateway to a wireless peripheral node is effected by a initial link establishment according to steps c) to d) in claim 1, and binding a wireless peripheral node to a non-assigned gateway via, a subsequent link establishment is effected according to step f-i) to f-v) in claim 1.

5. A home wireless system as claimed in claim 4, wherein said first gateway and said at least one second gateway are connected to a central monitoring station comprising data storing means storing installation data, said central monitoring station updating said first gateway and said at least one second gateway when installation data are changed.