EP2401725B1 - Système de surveillance de sécurité de domicile - Google Patents

Système de surveillance de sécurité de domicile Download PDF

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Publication number
EP2401725B1
EP2401725B1 EP09787938.1A EP09787938A EP2401725B1 EP 2401725 B1 EP2401725 B1 EP 2401725B1 EP 09787938 A EP09787938 A EP 09787938A EP 2401725 B1 EP2401725 B1 EP 2401725B1
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EP
European Patent Office
Prior art keywords
signal
slave
master
gateway unit
terminal
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EP09787938.1A
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German (de)
English (en)
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EP2401725A1 (fr
Inventor
Tomohiro Suzuki
Seiji Nimura
Takashi Fujii
Dan Hovang
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Panasonic Corp
Securitas Direct AB
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Panasonic Corp
Securitas Direct AB
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Publication of EP2401725A1 publication Critical patent/EP2401725A1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal

Definitions

  • the present invention is directed to a home security surveillance system, and more particularly to such a system in which a service provider implements a home security service to individual customer's homes respectively equipped with in-house alarm network.
  • a hazard alarm system for example, as disclosed in WO 2008/088079 that is designed to operate solely in a user's home for giving a fire alarm in a multiplicity of rooms or locations when any one of the locations is detected to see a fire occurrence.
  • the prior alarm system utilizes a master detector and a plurality of slave detectors, which are disposed in different locations and are communicated with each other through an in-house network.
  • Each of the detectors incorporates a detector for detection of a hazard or fire condition as well as an alarm unit which issues an alarm upon the detector generating a hazard signal indicative of the occurrence of the hazard condition.
  • the master detector is specifically designed to receive the hazard signal from anyone of the slave detectors and to generate a linking hazard signal and transmit the same to all the other detectors for simultaneous alarm at every detectors or rooms.
  • the slave terminal is designed to transmit the hazard signal to the master detector and optionally to the other slave detectors, but not to relay the hazard signal to the others.
  • the master detector acts as a repeater to relay the hazard signal to all the other detectors in order to successfully issue the alarms from all of the detectors for enhancing system integrity against possible failure of issuing the alarm in any one of the rooms.
  • the gateway it is required to establish a communication between the gateway to the in-house alarm network, i.e., at least one of the detectors. Accordingly, it is a straightforward solution to use a communication protocol employed in the in-house alarm network also to the communication between the in-house alarm network and the gateway, and to make the communication between the gateway and the master detector by making the use of its repeater function.
  • a wireless alarm system comprising a plurality of fire detecting terminals arranged to detect a hazardous condition and to generate a fire detecting message.
  • the detection terminals include transmitters for transmitting said hazard signal through a communication network.
  • the communications network including at least one master base unit and at least two slave base units, or portable parts, is configured such that each of the master base units is capable of communicating with each of the slave base units, and each of the slave base units is capable of communicating with each of the master base units.
  • the network is also configured such that each of the master base units and each of the network slave base units is capable of communicating with an outside telecommunications network.
  • the implementation of the integrated network system has to take into the consideration of the above potential insufficiencies and is well coordinated with the existing in-house alarm network for realizing reliable and fail-safe home security surveillance system.
  • the present invention has been achieved to solve a problem of providing a reliable and fail-safe home security surveillance system or integrated service system in which the server can successfully collect hazard condition detected in the in-house alarm network through different signal information paths.
  • the home security surveillance system in accordance with the present invention includes a plurality of detection terminals arranged to detect a hazardous condition in a customer's home and generate a hazard signal, and a computer-based server having a terminal enrollment table arranged to store an enrollment record for each of the detection terminals, and a gateway unit adapted to be installed in each of said customer' homes.
  • the enrollment record is configured to include a terminal code predetermined to identify each of the detection terminals.
  • Each detection terminal includes a radio transceiver for transmitting the hazard signal to the other detection terminal through a first communication network.
  • the gateway unit includes a communication means which is arranged to communicate with the server through the public computer network, and also to communicate with the detection terminals through a second communication network for receiving an aid-requesting signal from at least one of the detection terminals and transmitting the aid-requesting signal to the server.
  • the server has a processor which is configured to collect the aid requesting signal from the gateway unit, and an alert means configured to provide an alert report in response to receiving the aid-requesting signal.
  • Each detection terminal includes an alarm unit which provides an alarm upon such detection terminal generating the hazard signal or receiving a linking hazard signal from one of the other detection terminals and a power swicth. Further, each detection terminal is arranged to function selectively as a mater and a slave.
  • the master is defined to provide the linking hazard signal when receiving the hazard signal from any one of the other detection terminal, while the slave is defined to transmit the hazard signal to the master through the first communication network.
  • the gateway unit is arranged to relay the aid-requesting signal to the server upon receiving the aid-requesting signal.
  • Each detection terminal is arranged to generate and transmit the aid-requesting signal to the gateway unit through the second communication network upon generating the hazard signal, and that the second communication network has a communication protocol different from the first communication network.
  • the server can receive the aid-requesting signal either from the master or the slave for fail-safe acknowledgement of the hazard condition detected in the customer's home, yet avoiding possible interference between the first communication network and the second communication network.
  • the gateway unit is configured to transmit a request acknowledgement signal to the detection terminal sending the aid-requesting signal, and each detection terminal is configured to re-send the aid-requesting signal to the gateway unit when the request acknowledgement signal is not received within a predetermined response time period.
  • the master and the slave can successfully transmit the aid-requesting signal to the server through the gateway unit, even if it temporarily fails to transmit the aid-requesting signal.
  • the detection terminal assigned as the stave may be programmed to transmit the hazard signal as the aid-requesting signal first to the gateway unit upon generating the hazard signal, and subsequently transmit the hazard signal to the master.
  • the gateway can promptly transmit the aid-requesting signal to the server for immediate acknowledgement of the hazard condition on the side of the server.
  • the slave is configured to re-send the hazard signal to the master when the request acknowledgement signal is not received from the gateway unit within a predetermined response time period, whereby the master can be successfully informed of the hazard signal.
  • the gateway unit includes an assigning means which is arranged to assign the master to one of the detection terminals that is energized upon the power switch being turned on to first establish communication with the gateway unit, and assign said slave to the other detection terminal that is energized upon the power switch being turned on to later establish communication with gateway unit.
  • FIG. 1 there is shown a home security surveillance system which employs a hazard detection subsystem in accordance with the present invention.
  • the home security surveillance system is provided by a service provider and includes a computer-based server 30 installed on the side of a service provider for collecting hazard information such as fire occurrence from an in-house alarm network in each of customers' homes and providing an assistance, for instance, dispatching quatified personnel to the customers home and/or informing an urgent prompt to a customer out of ones' home.
  • the in-house network is realized by the subsystem which is developed in each of the customers' homes and includes a plurality of detecting terminals 50 such as smoke detectors, and a gateway unit 10 which acts as an interface between the detecting terminals and the server 30 .
  • the server 30 is equipped or linked with an alert device 38 which generates an alert report when receiving the hazard information in the form of an aid-requesting signal from any one of the detection terminals 50 through the gateway unit 10 .
  • each of the detection terminals is configured to communicate with each other through a first communication network, and also communicate with the gateway unit 10 through a second communication network.
  • the system further includes an input device 100 , for instance, a personal computer or the like which belongs to each customer and is configured to communicate with the server 30 through a public computer network, e.g., the Internet for enrolling the detection terminals 50 in the server 30 .
  • the server 30 is provided with a terminal enrollment table 37 , which is configured, as shown in FIG. 2 , to store a record of terminal code, for instance, manufacture's serial number entered by the customer by use of the input device 100 . No other entry is required on the side of the customer. The customer is only required to insert the record of the terminal code or delete such record in advance of developing the in-house alarm network of the subsystem.
  • the server 30 includes, in addition to a memory constituting the terminal enrollment table 37 , a communication module 32 for communication with the input device 100 as well as the gateway unit 10 through the public network, and a processor constituting an enrolling module 34 and a hazard event module 36 .
  • the enrolling module 34 is programmed to insert, delete, and update the enrollment record in the terminal enrollment table 37 in response to the customer's input at the input device 100 .
  • the hazard event module 36 is programmed to activate an alert device 38 for providing the alert report in response to the aid-requesting signal transmitted by way of the gateway unit 10 and received at the communication module 32 .
  • the alert device 38 may be a display, a speaker, or the like providing information to the personnel of the service provide.
  • the detection terminals 50 employed in the present invention are of the same configuration which enables each of the detection terminal to function selectively as a master and a slave.
  • the detection terminal 50 is powered by an incorporated battery (not shown), and includes, as shown in FIG. 4 , a power switch 52 , a smoke sensor 56 , an alarm unit 58 , a radio transceiver 68 , a processor, and a memory.
  • the smoke sensor 56 is designed to detect a smoke density in an atmosphere and output a density signal indicative of the detected smoke density to a hazard event module 64 realized in the processor.
  • the hazard even module 64 When the smoke density exceeds a predetermined threshold, the hazard even module 64 generate a hazard signal indicative of possible fire and output the signal to the alarm unit 58 , which responds to give an alarm sound.
  • the hazard signal is transmitted by means of the radio transceiver 68 to the other detection terminals 50 forming the in-house alarm network through the first communication network, and is also transmitted as the aid-requesting signal to the gateway unit 10 through the second communication network.
  • the hazard event module 64 is configured to generate the hazard signal in compliance with a first communication protocol specific to the first communication network, and the aid-requesting signal in compliance with a second communication protocol, which is different from the firs communication protocol, specific to the second communication network.
  • the master is defined to provide a linking hazard signal when receiving the hazard signal from any one of the other detection terminals, while the slave is defined to transmit the hazard signal to the master through the first communication network, and to give the alarm upon receiving the hazard linking signal from the master.
  • the linking hazard signal is prepared in accordance with the first communication protocol and is transmitted from the master to all of the slaves forming the in-house alarm network for providing the alarm at every detection terminals simultaneously.
  • the master is also configured to generate and transmit the aid-requesting signal to the gateway unit 10 when receiving the hazard signal from any one of the slaves or when generating the hazard signal by its own.
  • the master acts as a repeater to transmit the aid-requesting signal to the gateway unit in parallel with the aid requesting signal transmitted from the slave directly to the gateway unit 10 .
  • the slave is configured to transmit the hazard signal also to the other slave or slaves, when detecting the hazard configuration or fire occurrence.
  • the detection terminal has a terminal registration table 67 which is realized in the memory to store, as shown in FIG. 2 , a record of a master/slave index indicative of the master or slave, and a node number discriminating each one of the detection terminals from the other within the in-house alarm network. Further, the record of the terminal registration table 67 includes the terminal code.
  • the detection terminal When the detection terminal is assigned as the master, as will be discussed later, it is made to store the master/slave index and the node numbers for all of the detection terminals. When, on the other hand, the detection terminal is assigned as the slave, it is made to store the master/slave index and the node number of itself and the master.
  • the processor also realizes a configuration/registration module 62 which is programmed to interact with the gateway unit 10 to complete a terminal configuration of assigning the maser and slave, and a terminal registration of determining the node number in association with the master/slave index.
  • the gate unit 10 includes a radio transceiver 11 for communication with the server 30 as well as with the detection terminals 50 through the second communication network, which is distinguished from the first communication network of interconnecting the detection terminals 50 due to the use of a specific communication protocol different from that of the first communication network.
  • the gateway unit 10 also includes a memory constituting a terminal status table 17 which has a configuration identical to the terminal enrollment table 37 and is updated to reflect a change in the enrollment record of the terminal enrollment table 37 . Further, the gateway unit 10 has a processor constituting a hazard event module 12 , an authentication module 14 , and an assigning module 16 .
  • the hazard event module 12 is programmed to relay the aid-requesting signal to the server 30 , in response to receiving it from any one of the detection terminals 50 .
  • the authentication module 14 is programmed to authenticate the detection module, i.e., check whether or not the detection terminal 50 making a configuration demand is recorded in the terminal status table 17 , and permits the entry of such detection terminal 50 into the in-house alarm network when it is so recorded in the terminal status table 17 .
  • the assigning module 16 is programmed to assign the master to one of the authenticated detection terminals 50 and the slave to the other authenticated detection terminals 50 . The result of such assignment is recorded in the terminal status table 17 , as well as in the terminal registration table 67 of each detection terminals.
  • the gateway unit 10 After the customer enters the terminal code for each of the detection terminals 50 to be installed in one's home in the terminal enrollment table 37 of the server, the gateway unit 10 responds to record the terminal code in the terminal status table 17 when communicating first with the server. Thus, the gateway unit 10 becomes ready for making the terminal configuration. When one of the first detection terminals is energized with its power switch turned on, it transmits to the gateway unit 10 the configuration demand including the terminal code.
  • the gateway unit 10 When the gateway unit authenticates the detection terminal transmitting the configuration demand as being recorded in the terminal status table 17 , the gateway unit 10 , i.e., the assigning module 16 acknowledges that the detection terminal is the first one that establishes the communication with the gateway unit 10 , and returns a configuration request to the detection terminal, requesting the detection terminal to transmit a configuration response of a specific encryption key to the gateway unit 10 .
  • the gateway unit 10 verifies the configuration response as valid, it transmits a configuration instruction a configuration instruction to the detection terminal in order to assign the master thereto, and at the same time, updates the record of the terminal status table 17 with respect to the detection terminal by setting the master/slave index of "1" and the node number of "00", both indicating the master.
  • the configuration request and the configuration response are provided only for exchanging the encryption key between the detection terminal and the gateway unit for an encrypted communication, and may be optional. That is, the gateway unit 10 may be configured to transmit the configuration instruction in direct response to the configuration demand from the detection terminal of which terminal code is authenticated.
  • the configuration/registration module 62 Upon receiving the configuration instruction at the detection terminal 50 , the configuration/registration module 62 responds to write the master/slave index of '1' and the node number of "00" in association with the terminal code of its own in the terminal registration table 67 .
  • the detection terminal 50 (hereinafter also referred to as "DT-master”) becomes ready for registration of the other detection terminals (hereinafter also referred to as "DT-slave”) which constitute the in-house alarm network with the DT-master.
  • the detection terminal 50 goes into a stage 1 sequence (i.e., a slave configuration sequence) of transmitting the configuration demand with its terminal code, and optionally receiving the configuration request from the gateway unit 10 , and transmitting back the configuration response to the gateway unit 10 .
  • a stage 1 sequence i.e., a slave configuration sequence
  • the gateway unit 10 assigns the slave to the detection terminal 50 (DT-slave) by transmitting to the DT-slave the configuration instruction by which the configuration/registration module 62 of the DT-slave responds to write the master/slave index of "0" as associated with its own terminal code in the terminal registration table 67 .
  • the gateway unit 10 includes a registration instruction in the configuration instruction. That is, the assigning module 16 generates the registration instruction to be added with the configuration instruction.
  • the DT-slave goes into a stage 2 sequence (i.e., a slave registration sequence) starting from waking up the DT-master by sending a registration demand to the DT-master.
  • the DT-master Upon receiving the registration demand, the DT-master responds to return a demand acknowledgement to the DT-slave, and a registration inquiry to the gateway unit 10 . Subsequently, the gateway unit 10 returns a slave registration permission which is prepared by the assigning module 16 to include the node number of "01" to be given to the DT-slave.
  • the DT-master responds to transmit a registration order to the DT-slave with the node number of "01" indicative of that the DT-terminal is the first slave recognized by the DT-master, in addition to the master/slave index, and the node number of about the DT-master so that the configuration/registration module 62 of the DT-slave updates the record of its own to have the node number of "01", and adds the record of the DT-master in the terminal registration table 67 , as shown in FIG. 2 .
  • the DT-slave After completion of updating the terminal registration table 67 , the DT-slave returns a registration response to the DT-master which responds to add the record of the DT-slave in its terminal registration table 67 .
  • the DT-master Upon receiving the registration response from the DT-slave, the DT-master sends a slave registration request to the gateway unit 10 so that the gateway unit updates the record of the DT-master and the newly added DT-slave in the terminal status table 17 with regard to the master/slave index and the node number in relation to the terminal code.
  • the gateway unit 10 After updating the terminal status table 17 , the gateway unit 10 issues a registration completion response to the DT-slave, completing the slave registration sequence, i.e., the stage 2 sequence.
  • the DT-master acknowledges each of the DT-slaves and the vice versa as constituting the in-house alarm network such that the each DT-slave can transmit the hazard signal to the DT-master and the other DT-slave through the first communication network, i.e., the in-house alarm network, and the DT-master can transmit the aid-requesting signal to the gateway unit 10 through the second communication network upon receiving the hazard signal from any one of the DT-slaves, in addition to that each of the DT-slave can transmit the aid-requesting signal directly to the gateway unit 10 through the second communication network.
  • FIG. 7 there is shown a time chart illustrating how the system works when one of the DT-slaves is removed from the system.
  • the customer utilizes the input device 100 to delete the record of the defective DT-slave from the terminal enrollment table 37 in the server 30 .
  • the change of the record is reflected in the terminal status table 17 of the gateway unit 100 when it communicates with the server 30 . That is, the terminal status table 17 is updated to give a delete flag to the record of the defective DT-slave, indicating that such recorded is to be deleted.
  • the DT-master functions to make a status check sequence whether or not the registered DT-slaves are currently available in the system.
  • the status check sequence is initiated by manipulation of a set button 54 on the side of the DT-master.
  • the configuration/registration module 62 responds to generate a status check request for all of the existing or registered DT-slaves, interrogating whether or not each of the DT-staves registered in the terminal registration table 67 is recorded as a valid one in the terminal status table 17 of the gateway unit 10 .
  • the gateway unit 10 When returning a status request acknowledgement to the DT-master, the gateway unit 10 provides a slave remove instruction for deleting the defective DT-slave from the terminal registration table 67 , i.e., the record of the defective DT-slave which is marked with the delete flag in the terminals status table.
  • the DT-master deletes such record from its terminal registration table 67 , and returns a slave remove confirmation to the gateway unit, such that the gateway unit updates its terminal status table 17 by actually deleting the record with the delete flag.
  • the DT-slave When the other non-defective DT-slave, for example, having the node number of "02" has its set button 54 pressed, the DT-slave transmits a like status check request whether or not the DT-slave "02" is recorded in the terminal status table 17 of the gateway unit and receives therefrom the status request acknowledgement, which necessitates no change in the terminal registration table 67 of the DT-slave "02".
  • the status check sequence is initiated by pressing the set button 54 for a short period, for example, less than 4 seconds.
  • the set button 54 is pressed for a long period more than 4 seconds, the DT-master or DT-slave makes the above status check followed by a manual test routine which generates a pseudo hazard signal for checking whether the in-house alarm system reacts to issue the alarm from the individual detection terminal.
  • the DT-master or the DT-slave issues a test request to the gateway unit which responds to return a test request acknowledgement.
  • the DT-master or the DT-slave Upon receiving the test request acknowledgement, the DT-master or the DT-slave is allowed to enter a manual test mode of giving the pseudo hazard signal to generate the alarm within the in-house alarm network, while the gateway unit can acknowledge that the resulting alarm is false one and simply as a result of the test.
  • the set button when long-pressed, issues a stop alarm signal provided that that there is the hazardous condition detected in the in-house alarm network.
  • each of the DT-master and the DT-slaves is activated intermittently or comes into an intermittent operation mode of checking whether or not the hazardous condition is detected, and wakes-up to transmit the hazard signal as well as the aid-requesting signal immediately upon detection of the hazardous condition.
  • intermittent operation mode of the terminal is denoted by the term "intermittent operation”.
  • each of the DT-master and the DT-slave is configured to issue the status check request to the gateway unit at regular intervals for checking whether or not the second communication network operates successfully.
  • FIG. 8 illustrates a time chart how the system works when the DT-master is removed.
  • the customer is required to delete the record of the defective DT-master from the terminal enrollment table 37 in the server 30 such that the gateway unit 10 updates its terminal status table 17 to reflect the deletion.
  • this DT-slave makes the status check sequence by transmitting the status check request to the gateway unit 10 .
  • the gateway unit 10 fails to successfully return the status request acknowledgement to the DT-slave, because of that the gateway unit acknowledges no DT-master in its terminal status table 17 .
  • the DT-slave is allowed to make the configuration sequence to the gateway unit 10 .
  • the gateway unit 10 Upon receiving the configuration demand from the DT-slave, the gateway unit 10 makes a reconfiguration routine for reestablishing the in-house alarm network. The reconfiguration routine continues by the gateway unit 10 returning the configuration instruction by which the receiving DT-slave is assigned as a new master and rewrites its terminal registration table 67 to have the master/slave index of "1".
  • the gateway unit upon receiving the configuration demand, as explained with reference to FIG. 6 , from the detection terminal establishing the communication with the gateway unit, the gateway unit refers to its terminal status table and permits the assigning module 16 to assign the master to the detection terminal transmitting the configuration demand, only when the terminal status table shows a record of the detection terminal transmitting the configuration demand, and shows no record of any detection terminal already assigned as the master.
  • the gateway unit 10 updates the terminal status table 17 to rewrite the master/slave index of the new DT-master. Thereafter, the DT-master transmits the status check request to the gateway unit 10 which returns the status request acknowledgement to the DT-master. Whereby, the DT-master responds to clear the records of the remaining DT-slaves with regard to the node number, and the gateway unit 10 clears the records of the remaining DT-slaves with regard to the node number. Then, the gateway unit 10 becomes ready for completing the reconfiguration routine in combination with the DT-master.
  • the gateway unit 10 upon receiving the configuration demand from each of the remaining DT-slaves, in this instance, DT-slave having the node number of "02", the gateway unit 10 generates the configuration instruction designating a new node number of "01" and the master/slave index of "0", and transmits the same to the DT-slave, which responds to update its own terminal registration table 67 correspondingly, thereby completing the stage 1 sequence (slave configuration sequence). At this time, the gateway unit 10 has its terminal status table 17 updated to reflect the change made to the DT-slave.
  • the configuration instruction generated in the gateway unit 10 includes the registration instruction by which the DT-slave comes into the stage 2 sequence (i.e., the slave registration sequence), which starts from waking up the new DT-master by sensing the registration demand and complete by receiving the registration completion response from the gateway unit 10 , as explained in details with reference to FIG. 6 . Similarly, any of the remaining DT-slaves completes the above reconfiguration routine simply by pressing the set button 54 for the short time period.
  • the new DT-master Upon completion of the reconfiguration of the all the existing DT-slaves, the new DT-master has its terminal registration table 67 updated to acknowledge the DT-staves by their node numbers for communication within the in-house alarm network, in addition to that the DT-master as well as the DT-slaves can communicate with the gateway unit 10 with the use of individual node numbers.
  • FIG. 9 there is shown another time chart illustrating how the system works when replacing the DT-slave with a new one.
  • the customer uses the input device 100 to remove the record of the defective DT-slave from the terminal enrollment table 37 in the server 30 and insert a record of the newly added detection terminal in the terminal enrollment table 37 .
  • the change of the record is reflected in the terminal status table 17 of the gateway unit 100 when it communicates with the server 30 .
  • the new DT-slave upon being energized to communicate with the gateway unit 10 , the new DT-slave interacts with the gateway unit 10 to complete the stage 1 sequence and the stage 2 sequence as explained herein above so as to be given the master/slave index of "0" and a new node number, whereby the new DT-slave is recognized by the gateway unit 10 and also by the DT-master for successful communication therebetween. Subsequently, in response to the short-pressing of the set button 54 , the DT-master makes the status check sequence whether or not the DT-slaves recorded in its terminal registration table are currently available in the system.
  • the DT-master generates and transmits the status check request to the gateway unit 10 , interrogating whether or not each of the DT-slaves recorded in the terminal registration table 67 is also recorded as valid one in the terminal status table 17 of the gateway unit 10 .
  • the gateway unit 10 provides the slave remove instruction for deleting from the terminal registration table 67 the record of the terminal which is marked with the delete flag in the terminal status table 17 .
  • the DT-master deletes such record from its terminal registration table 67 , and returns the slave remove confirmation to the gateway unit for completely deleting such record also from the terminal status table.
  • the DT-slave has its set button short-pressed, it transmits the status check request to the gateway unit 10 which returns the status request acknowledgement indicative of that no change is necessary for the terminal registration table 67 of the requesting DT-slave.
  • the system When the DT-master becomes defective and is replaced with a new one, the system operates as shown in FIG.10 .
  • the user updates the terminal enrollment table 37 of the server 30 by deleting the record of the defective DT-master and inserting the terminal code of a new detection terminal. The resulting change is reflected in the terminal status table 17 of the gateway unit 10 .
  • the gateway unit 10 In response to the new detection terminal being energized to establish the communication with the gateway unit 10 by sending the configuration demand, the gateway unit 10 checks whether or not there is the record of the detection terminal assigned as the master in the terminal status table 17 , and complete the stage 1 sequence by sending the configuration instruction, which assigns the master to the new detection terminal when the terminal status table shows no record of the detection terminal assigned as the master.
  • the newly added detection terminal is acknowledged as the new DT-master.
  • the new DT master transmits the status check request to the gateway unit 10 and receives therefrom the status request acknowledgement for confirmation of that the DT-master is recorded in the terminal status table.
  • the DT-master does not acknowledge the associated DT-slaves, since no record of the DT-slaves are entered in its terminal registration table 67 .
  • the gateway unit 10 clears the node number of each DT-slave from its terminal status table, such that it fails to return the status acknowledgement to each DT-slave, even when each DT-slave has its set button short-pressed in an attempt to interact with the gateway unit.
  • the DT-master sends the status check request, requesting the gateway unit 10 to accept the configuration demand followed by the status check request from each DT-slave.
  • the DT-slave is allowed to make the configuration sequence to the gateway unit and receives the configuration instruction to complete the stage 1 sequence and the stage 2 sequence in a manner as described in the above, whereby the DT-slave is redefined as the slave with the node number given from the gateway unit, and is recorded in the terminal registration table of the DT-master. In this manner, all of the existing DT-slaves are redefined and acknowledged by the DT-master and the gateway unit.
  • FIG. 11 illustrates how the system works upon detection of the hazardous condition at one of the DT-slaves.
  • DT-slave having the node number of "01" detects the hazardous condition and is caused to wake-up to issue the alarm and to transmit the aid-requesting signal to the gateway unit 10.
  • the gateway unit responds to relay the aid-requesting signal to the server 30 to notify the hazardous condition, and return an aid-request acknowledgement to the detecting DT-slave.
  • the detecting DT-slave transmits the hazard signal, waking up the DT-master as well as the other DT-slave (hereinafter referred to as non-detecting DT-slave).
  • the non-detecting DT-slave In response to the hazard signal, the non-detecting DT-slave issues the alarm, while the DT-master generates and transmits the linking hazard signal to the detecting and non-detecting DT-slaves such that each DT-slave issues the alarm. If the non-detecting DT-slave should have failed to wake-up due to some temporary communication error, it is caused to wake-up by the interconnecting hazard signal and issue the alarm.
  • the detective DT-slave and the non-detective DT-slave when waking-up, return a linking alarm response back to the DT-master, which in turn comes into an interlocked mode of transmitting the aid-requesting signal repeatedly to the gateway unit, and at the same time transmitting the linking hazard signal repeatedly to the detective and non-detective DT-slaves.
  • the DT-master Upon the set button being pressed in this situation where the linking hazard signal is repeatedly transmitted, the DT-master transmits an alarm stop order to the detecting and non-detecting DT-slaves, and at the same time transmits an alarm status signal to the gateway unit, indicating that the DT-master is requesting the DT-slaves to stop the alarm.
  • the alarm stop order and the alarm status signal are transmitted repeatedly within a predetermined time period of 90 seconds, for example. After the elapse of the time period, the DT-master transmits an alarm stop confirmation, requesting the detective and non-detective DT-slaves to return an alarm stop response indicative of that the alarm stop order is accepted at the DT-slave.
  • the detecting DT-slave While the detecting DT-slave is still detecting the hazardous condition, the detecting DT-slave returns the alarm stop response indicative of the hazardous condition such that the DT-master responds to continue transmitting the linking hazard signal until the hazardous condition is cleared, and continues transmitting to the gateway unit the aid-request signal including information that the hazardous condition is still being detected at the detecting DT-slave after the DT-master transmits the alarm stop order.
  • the detecting DT-slave transmits a stop alarm demand to the DT-master, while stopping its own alarm. Then, the DT-master responds to transmit a stop alarm confirmation order to all the DT-slaves, requesting them to return a stop alarm response including information whether or not the DT-slave is ready for stopping the alarm. Upon acknowledgement of the stop alarm response, the DT-master transmits a stop alarm order to the DT-slaves for stopping the alarm at the individual DT-slaves. When the alarm is stopped, each DT-slave returns the stop alarm response indicative of the alarm status to the DT-master, and comes into the intermittent reception mode.
  • the DT-master comes into the intermittent reception mode upon receiving the stop alarm response from the DT-slaves. Further, after receiving the stop alarm demand and until receiving the stop alarm response, the DT-master functions to transmit the alarm status signal to the gateway unit with information that the DT-master receives the stop alarm demand from the detecting DT-slave.
  • the detection terminal is designed to issue the alarm as a sound-voice "whiz whiz warning smoke alarm” when the hazardous condition is detected by its own, and to issue the alarm as a sound-voice "whiz whiz warning smoke in another room "when the hazardous condition is detected by the other detection terminal.
  • the detection terminal While the detection terminal is in the intermittent operation mode, it transmits the status check request at regular intervals of 33 hours, for instance, to the gateway unit with information about a battery condition or some parameters indicative whether or not the detection terminal is in good order.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Radio Relay Systems (AREA)

Claims (3)

  1. Système de surveillance pour la sécurité à domicile, comprenant :
    - une pluralité de bornes de détection (50) agencées de manière à détecter une situation dangereuse au domicile d'un client et à générer un signal de danger, chacune desdites bornes de détection incluant un émetteur-récepteur radio (68) destiné à transmettre ledit signal de danger à l'autre borne de détection à travers un premier réseau de communication et un commutateur d'alimentation (52) ;
    - un serveur basé sur un ordinateur (30), présentant une table d'inscription de bornes (37) agencée de manière à stocker un dossier d'inscription pour chacune de ladite pluralité de bornes de détection, ledit dossier d'inscription incluant un code de borne prédéterminé destiné à identifier chacune desdites bornes de détection ;
    - une unité de passerelle (10) apte à être installée au domicile de chacun desdits clients, et incluant un moyen de communication (11) agencé de manière à communiquer avec ledit serveur par l'intermédiaire d'un réseau informatique public, et en outre à communiquer avec lesdites bornes de détection par le biais d'un second réseau de communication, en vue de recevoir un signal de demande d'assistance en provenance d'au moins l'une desdites bornes de détection, et de transmettre ledit signal de demande d'assistance audit serveur ;
    dans lequel ledit serveur présente un processeur qui est configuré de manière à collecter ledit signal de demande d'assistance à partir de ladite unité de passerelle, et un moyen d'alerte configuré de manière à fournir un rapport d'alerte en réponse à la réception dudit signal de demande d'assistance ;
    dans lequel chacune desdites bornes de détection inclut une unité d'alarme (58) qui émet une alarme dès lors qu'une telle borne de détection génère ledit signal de danger ou reçoit un signal de danger de liaison en provenance de l'une des autres bornes de détection ;
    chacune desdites bornes de détection étant agencée de manière à fonctionner de façon sélective en qualité de maître et d'esclave, ledit maître étant défini de manière à fournir ledit signal de danger de liaison lors de la réception dudit signal de danger en provenance de l'une quelconque des autres bornes de détection, et ledit esclave étant défini de manière à transmettre ledit signal de danger audit maître par l'intermédiaire dudit premier réseau de communication ;
    ladite unité de passerelle étant agencée de manière à relayer ledit signal de demande d'assistance audit serveur lors de la réception dudit signal de demande d'assistance ; et
    chacune desdites bornes de détection étant agencée de manière à générer et à transmettre ledit signal de demande d'assistance, à ladite unité de passerelle, à travers ledit second réseau de communication, lors de la génération dudit signal de danger, ledit second réseau de communication présentant un protocole de communication distinct de celui dudit premier réseau de communication ;
    dans laquelle ladite unité de passerelle inclut un moyen d'affectation (16) agencé de manière à affecter, en tant que ledit maître, l'une desdites bornes de détection qui est mise sous tension par la manipulation du commutateur d'alimentation, en vue d'établir, dans un premier temps, une communication avec ladite unité de passerelle, et à affecter, en tant que ledit esclave, l'autre borne de détection qui est mise sous tension par la manipulation du commutateur d'alimentation, en vue d'établir, ultérieurement, une communication avec ladite unité de passerelle.
  2. Système de surveillance de la sécurité à domicile selon la revendication 1, dans lequel
    ladite unité de passerelle est configurée de manière à transmettre un signal de demande d'accusé de réception à ladite borne de détection envoyant le signal de demande d'assistance, et chacune desdites bornes de détection est configurée de manière à renvoyer ledit signal de demande d'assistance à ladite unité de passerelle lorsque ledit signal de demande d'accusé de réception n'est pas reçu au cours d'une période de temps de réponse prédéterminée.
  3. Système de surveillance de la sécurité à domicile selon la revendication 1, dans lequel
    ledit esclave est programmé de manière à transmettre ledit signal de danger en tant que ledit signal de demande d'assistance, dans un premier temps, à ladite unité de passerelle lors de la génération dudit signal de danger, et ensuite à transmettre ledit signal de danger audit maître,
    ladite unité de passerelle étant configurée de manière à transmettre un signal de demande d'accusé de réception audit esclave envoyant ledit signal de demande d'assistance ; et
    ledit esclave étant configuré de manière à renvoyer ledit signal de danger audit maître lorsque ledit signal de demande d'accusé de réception n'est pas reçu au cours d'une période de temps de réponse prédéterminée.
EP09787938.1A 2009-02-27 2009-02-27 Système de surveillance de sécurité de domicile Active EP2401725B1 (fr)

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JP2018098607A (ja) 2016-12-12 2018-06-21 パナソニックＩｐマネジメント株式会社 カメラ装置及び通信システム
WO2021194849A1 (fr) * 2020-03-23 2021-09-30 Portland State University Détection de feu incontrôlé en temps réel

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JP5162034B2 (ja) 2013-03-13
ES2465946T3 (es) 2014-06-09
CA2753670A1 (fr) 2010-09-02
CA2753670C (fr) 2014-08-19
JP2012519314A (ja) 2012-08-23
EP2401725A1 (fr) 2012-01-04
WO2010097963A1 (fr) 2010-09-02

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