JP5221469B2 - Alarm system, alarm device and repeater - Google Patents

Description

The present invention relates to an alarm system, an alarm device, and a relay device that detect and alarm an abnormality such as a fire, and transmit a signal to another alarm device to output the alarm in conjunction.

  Conventionally, residential alarms (hereinafter referred to as “residential alarms”) that detect and warn of fires in houses have become widespread. In recent years, a plurality of residential alarms can communicate with each other to provide a single residence. Wireless dwelling alarms for linked alarm systems that can alarm alarm information with other alarms have been put into practical use, and some of these operate by battery power.

  In a linked alarm system that performs wireless communication, if a fire is detected by a certain home alarm device, the home alarm device that detected the fire will, for example, send a voice message saying "Woo Woo is a fire." On the other hand, a voice message “Please check if a fire alarm for each Woo-Wood has been activated” is output on the linked home alarm. In addition, the indicator light of the interlocking home alarm device is turned on, and the indicator light of the interlocking destination home alarm device is blinking so that the interlock source or the interlocking destination can be distinguished from the display of the indicator light.

JP 2007-094719 A

  However, in a wireless alarm system that performs such a conventional interlocking alarm, when a certain resident alarm receives a signal from another resident alarm, a plurality of wireless signals simultaneously arrive and signal A collision may occur, and the degree of signal collision becomes higher as the number of residential alarms installed in a monitoring area such as a house increases, which limits the number of residential alarms that can be installed in one monitoring area. There's a problem.

  For example, there is a system in which when a certain home alarm detects a fire and wirelessly transmits an event signal, a plurality of other home alarms relays simultaneously with reception. In this system, radio signals relayed by a plurality of residential alarms collide, and if the number of residential alarms is large, appropriate reception cannot be performed.

  In addition, when registering a group for configuring a group with a plurality of home alarms, if a registration event is wirelessly transmitted from one home alarm, the event signals of the transmission source codes are simultaneously transmitted from the other plurality of home alarms. The response is transmitted wirelessly, and if the number increases, signals will collide and proper reception will not be possible.

  This problem also applies to a parent-child wireless alarm system in which a plurality of child devices are arranged with respect to the parent device. The master unit uses the individual IDs of the slave units to sequentially call the slave units to acquire and process events. However, in this case, if the number of slave units increases, the entire communication takes time. Therefore, if the slave devices are called all at once using a common code such as a group code, the response signals collide with each other on the master device side, and appropriate reception cannot be performed. As the number of slave units increases, the possibility of signal collision increases.

  As described above, in the conventional system, in order to expand the number of alarm devices constituting the system, it is necessary to solve the problems of signal collision and processing speed.

An object of the present invention is to provide a highly reliable wireless alarm system, alarm device, and repeater that can reduce signal collision even when the number of alarm devices increases.

(First system: No group code relay conversion)
In the present invention, in the monitoring area, a plurality of alarm devices that detect an abnormality and output an abnormality alarm are arranged, and the alarm device that detects the abnormality outputs an abnormality alarm indicating the interlocking source and outputs an abnormality signal to other alarm devices. In an alarm system that outputs an abnormal alarm indicating the link destination,
A group code indicating one's own group using the same communication frequency between the alarm devices belonging to each group is made possible by configuring a plurality of groups of one or a plurality of alarm devices and using different communication frequencies for each group. a signal in association with a radio transceiver, place the repeater is in cooperative relationship wirelessly relays a signal between alarm devices belonging to a group that uses a different communication frequencies,
Repeater, set in association with the group code and communication frequency for each group of relays, the signals received from the Ah Ru alarm unit sends converted to the number of communication frequency associated with the group code of the relay destination group,
Alarm device sets a group in its group and cooperative relationship, the group code contained in the other alarm devices or repeater or we received the No. signal is also self of group in cooperation relationship When a group is indicated , the signal is processed as a valid signal.

Here, the repeater is included in any of the groups that have a cooperative relationship but use different communication frequencies .

The alarm
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that stores in advance a set of group codes indicating groups in a cooperative relationship;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit for transmitting an event signal including the event content and its group code detected by the event detecting unit to the other alarm devices及beauty RELAY device,
Receiving process for receiving the event signal as a valid signal if it demonstrated any one of a group of sets of group code group code is stored in the storage unit included in the event signal received from the other alarm devices or repeater And
Upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, while the other When receiving a valid event signal indicating an abnormality from the alarm device, an alarm processing unit that outputs an abnormality alarm indicating a linkage destination from the notification unit; and
And communication frequency selection instruction unit for instructing the selection of either the plurality of communication frequencies predetermined,
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency transmission and reception circuit unit at a communication frequency selection instruction unit,
It is provided with.

The repeater is
A storage unit that stores in advance a set of group codes indicating groups to be relayed ;
A plurality of transmission / reception circuit units that respectively transmit and receive signals of communication frequencies set for each group to be relayed ;
When the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, it determines the signal as a valid signal, setting the group of relay destination and relay processing unit to send using the communications frequencies,
Is provided.

(Second system: Relay conversion of group codes)
In another form of the present invention, in the monitoring area, a plurality of alarm devices that detect an abnormality and output an abnormality alarm are arranged, and the alarm device that detects the abnormality outputs an abnormality alarm indicating an interlocking source, In an alarm system that sends an abnormal signal to another alarm device and outputs an abnormal alarm indicating the interlock destination,
A plurality of groups consisting of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and a group code indicating the own group using the same communication frequency among alarm devices belonging to each group is included. signals as well as radio transceiver, although the cooperative relationship arranged repeater wirelessly relays a signal between alarm devices belonging to a group that uses a different communication frequencies,
Repeater sets a group code and a communication frequency for each group of relays, the group code contained in Ah Ru alarm device or we received the No. signal and converts the group code of the relay destination group, converted and transmits the converted to the number of communication frequency associated with the group code,
Alarm device sets a group of self, if the other alarm devices or the group code included in the relay device or we received the No. signal medium showing the self group, a valid signal the signal It is characterized by processing as follows.

Here, the repeater is included in any of the groups that have a cooperative relationship but use different communication frequencies .

The alarm
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that pre-stores its own group code;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit that transmits an event signal including an event content detected by the event detection unit and its own group code to another alarm device and a relay device;
When the group code contained in the event signals received from the other alarm devices or repeater showed group code stored in the storage unit, and a reception processing unit that receives the event signal as a valid signal,
Upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, while the other When receiving a valid event signal indicating an abnormality from the alarm device, an alarm processing unit that outputs an abnormality alarm indicating a linkage destination from the notification unit; and
And communication frequency selection instruction unit for instructing the selection of either the plurality of communication frequencies predetermined,
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency transmission and reception circuit unit at a communication frequency selection instruction unit,
Is provided.

The repeater is
A storage unit that stores in advance a set of group codes indicating groups to be relayed ;
A plurality of transmission / reception circuit units that respectively transmit and receive signals of communication frequencies set for each group to be relayed ;
When the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, it determines the signal as a valid signal, the group code relay destination converts the group code of the group, and a relay processing unit to send using the communication frequency associated with the converted group code,
Is provided.

According to the present invention, the alarm devices to be linked are configured as a group, the alarm devices in the group are linked, and the different groups are linked and linked via the repeater. By linking multiple groups in the same monitoring area , the total number of linked units can be increased, and the communication frequency of the alarm device varies from group to group. Signals from other groups of alarm devices arrive at the same time, signal collision does not occur, and signal transmission and reception can be performed reliably.

  In addition, the transmission / reception of signals between groups can be performed in conjunction with each other between groups having different communication frequencies via a repeater by relaying the signals by repeating the conversion to different frequency signals between groups. it can.

  In addition, signal collision is less likely to occur as the number of alarm devices using the same communication frequency is smaller. For example, the number of alarm devices constituting one group is relatively small, and a plurality of groups are provided so that the entire need is increased. Secure interlocked units. The maximum number of alarm devices that can be installed in the monitoring area is determined by the maximum number of groups corresponding to the maximum number of different communication frequencies (channels) that can be used and the number of alarm devices that constitute each group. The maximum number of channels is 4, for example, and when the maximum number of alarm devices constituting one group is 8, for example, the maximum number of interlocking units that can be installed in the monitoring area can be 32.

The maximum number of units that can be installed in this monitoring area, 32 units, is sufficient to cover installations in large-scale houses and small group homes, for example, and increases the number of units installed while reducing signal collisions. Can be made. Of course, if the number of channels and the number of alarm devices per group are further increased, the total number of interlocking devices can be increased. However, in this case, the adjustment is made within a range not impairing the object of the present invention. In this way, the number of alarm devices in the entire system can be expanded compared to the conventional system.

Explanatory drawing which showed 1st Embodiment of the alarm system by this invention taking the structure of 2 groups as an example Explanatory drawing which showed the group added to the alarm system of FIG. The block diagram which showed embodiment of the residence guard of FIG. Explanatory drawing showing the format of the event signal used in this embodiment The flowchart which showed the basic processing operation of the residence guard of FIG. The flowchart which showed the detail of the detection event process in FIG.5 S3 The flowchart which showed the detail of the reception event process in step S5 of FIG. The block diagram which showed embodiment of the repeater provided in the alarm system of FIG. The flowchart which showed the relay process by the repeater of FIG. Explanatory drawing which showed 2nd Embodiment of the alarm system by this invention taking the structure of 2 groups as an example The flowchart which showed the relay process by the repeater of FIG.

  FIG. 1 is an explanatory diagram showing a first embodiment of an alarm system according to the present invention, taking a two-group configuration as an example. In the first embodiment, a linkage group code indicating another group that is linked to the group to which the group belongs is registered in each group's mortgage, and the warning is linked between different groups. It is characterized by that.

  In FIG. 1, in a monitoring area such as a house, for example, six residential alarms 10-1 to 10-6 are arranged in groups G1 and G2, and a repeater 12 is arranged in one group G1. Has been.

  The group G1 is composed of three residential alarms 10-1 to 10-3 and a repeater 12, and is one of four channel frequencies (communication frequencies) f1, f2, f3, and f4 in the 400 MHz band, for example, a channel. The frequency f1 is set.

  Group G2 is composed of three residential alarms 10-4 to 10-6, and sets one of four channel frequencies (communication frequencies) f1, f2, f3, and f4 in the 400 MHz band, for example, channel frequency f2. doing.

  The group police G-1 and the cooperation group code | symbol G2 which shows the group G2 which has a cooperation relation are registered into the residence police device 10-1 to 10-3 of the group G1. In addition, in the group G2 residence guards 10-4 to 10-6, the self group code G2 and the cooperation group code G1 indicating the group G1 in cooperation relation are registered.

  Both the channel frequency f1 of the group G1 and the channel frequency f2 of the group G2 are set in the repeater 12, the event signal received at the channel frequency f1 is converted into an event signal of the channel frequency f2, and relayed, The event signal received at the channel frequency f2 is converted into an event signal of the channel frequency f1 and relayed.

  Moreover, since the repeater 12 belongs to the group G1, the group of the self group code G1 and the cooperation group code | symbol G2 which shows the group G2 which has a cooperation relationship is registered similarly to the housing police devices 10-1 to 10-3. ing.

  As a result, in the group G1, the residential alarm devices 10-1 to 10-3 use the channel frequency f1 to transmit and receive event signals including their own group codes G1. When it is determined that the included group code matches its own group code, it is processed as a valid received event signal.

  The same applies to the group G2, and the home alarm devices 10-4 to 10-6 transmit and receive event signals including their own group codes G2 using the channel frequency f2. When it is determined that the group code included in the signal matches its own group code, it is processed as a valid received event signal.

  When the repeater 12 receives the event signal of the channel frequency f1 from the home guards 10-1 to 10-3 of the group G1, the repeater 12 confirms that the group code G1 included in the received event signal matches its own group code G1. It is discriminated as an effective reception event signal, converted to the channel frequency f2 of the group G2 that is in a cooperative relationship, and relayed while leaving the group code G1 as it is. In this case, the group code may also be converted to G2. good.

Event signal transmitted from the repeater 12 in the channel frequency f2, the group G2 is received in Ju警 device 10-4～10-6 of group codes G1 included in the received event signal indicating a cooperative relationship linkage group code G1 Are processed as a valid received signal.

  Further, when the repeater 12 receives the event signal of the channel frequency f2 from the home guards 10-4 to 10-6 of the group G2, the group code G2 included in the received event signal is associated with the own group code G1. It is determined that it matches the cooperative group code G2 and is converted into an effective reception event signal, converted to the channel frequency f1 of the cooperative group G1, and the group code G2 is relayed and transmitted as it is.

Event signal transmitted from the repeater 12 in the channel frequency f1, the group G1 is received by Ju警 device 10-1 to 10-3 of group codes included in the received event signal G2 indicates a linkage relationship linkage group code G2 Are processed as a valid received event signal. As a result, it is possible to perform linked monitoring within a group and between groups.

  Here, by dividing the six residential alarms 10-1 to 10-6 into two groups G1 and G2 each having a channel frequency different from f1 and f2, it is impossible to receive due to a signal collision of the same channel frequency. Can be reduced. That is, as a whole system, signals of up to 6 units (7 units when repeaters are added) propagate through the space, but signals of the same channel are 3 units (4 units even if repeaters are added). Min).

  In FIG. 1, the repeater 12 belongs to the group G1, but of course, it may belong to the group G2 or may belong to another independent group including only the repeater.

  The reason why the channel frequency and the cooperation group code are handled independently is, for example, a system in which the group of FIG. 2 is added to the system of FIG. In this system, the home guards 10-7 and 10-8 of the group G3 transmit and receive event signals having the same channel frequency CH2 as that of the group G2, and the group code G3 to which the group G3 belongs and other group A cooperative group code G2, which is a group code, is registered.

  For example, when a group G2 home alarm detects a fire, an event signal including a group code G2 and an event code indicating an abnormality (fire) is transmitted from the home alarm using the channel frequency f2. The signal is received by, for example, the residential alarm 10-7 of G3. Since G2 is registered as a cooperation group code in the home alarm device 10-7, the home alarm device 10-7 validates this and outputs an interlocking alarm from its own notification unit.

  On the other hand, when a fire is detected by the group G3 residential alarm 10-7, the event signal including the group code G3 and an event code indicating an abnormality (fire) is transmitted from the household alarm 10-7 using the channel frequency f2. Although it is transmitted, since G3 is not registered as the cooperation group code in the home police 10-4 to 10-6 of the group G2, the interlocking process is not performed.

  That is, the group G3 residence guards 10-7 and 10-8 perform a linkage alarm using the group G2 residence police as a linkage source, but the group G2 residence police 10-4 to 10- using the self as a linkage source. 6 cannot be linked.

  Such a system can be applied, for example, when it is desired to link from one to the other but not the other. Of course, it is a condition that the total number of residential alarms in each group is so small that signal collision does not cause a problem. That is, when the total number is small, the group G2 and the group G3 can be linked without using a repeater, or the repeater is omitted and, for example, a system of only the group G2 and the group G3 is constructed. You can also.

  As is clear from FIG. 2, the group G1 and the group G3 are not linked to each other at this time, but G3 is added as a linkage group code to the repeater 12 so that appropriate transmission processing is performed. Then, the group G3 residence guard and the group G1 residence guard can be linked. In addition, if the channel frequency band registered for the household alarm devices 10-7 and 10-8 of the group G3 is changed from CH2 to, for example, CH3, the group G3 can be an independent group that is not linked with other groups. .

  In this way, by handling the channel frequency and the associated group code independently, it is possible to construct and change more various systems.

  FIG. 3 is a block diagram showing an embodiment of a house alarm (house fire alarm) provided in the alarm system of FIG. 1, and the circuit configuration of the house alarm 10-1 of the group G1 shown in FIG. It shows in detail. In addition, in order to make an explanation easy to understand, the repeater 12 of the group G1 and the home guards 10-4 to 10-6 of the group G2 are shown together. The other home alarm devices 10-2 to 10-6 also have the same configuration as the home alarm device 10-1.

  The home alarm device 10-1 includes a processor 18 known as a one-chip CPU. For the processor 18, a wireless communication unit 20 including an antenna 21, a memory 22, a sensor unit 24, a notification unit 26, an operation unit 28, and A battery power source 30 is provided.

  The wireless communication unit 20 is provided with a transmission circuit 32 and a reception circuit 34. Based on an instruction from the processor 18, for example, one of four channel frequencies (communication frequencies) f1, f2, f3, and f4 in the 400 MHz band, for example, A channel frequency f1 is set so that event signals can be transmitted and received wirelessly between the other residential alarm devices 10-2 and 10-3 and the repeater 12 belonging to the same group G1.

  As the wireless communication unit 20, in Japan, for example, STD-30 (a wireless equipment standard for a low power security system wireless station) or STD-T67 known as a standard for a specific low power wireless station in the 400 MHz band. It has a configuration that conforms to the standard for specific low-power radio station telemeters, telecontrol and data transmission radio equipment.

  Of course, the wireless communication unit 20 has contents conforming to the standard of the assigned wireless station in the area in places other than Japan.

  In the memory 22 as a storage unit, a serial number 38 that is a serial number indicating the order of event signals, a transmission source code 40 that becomes an ID (identifier) that identifies the home alarm, a group code 42 that indicates a group to which the device belongs, And the cooperation group code | symbol 45 which shows the group which has a cooperation relationship is stored.

  The serial number 38 is used for managing the relay processing of the event signal in the communication between the alarm devices, but will not be described in detail because it is not directly related to the present embodiment.

  As the transmission source code 40, the number of home guards provided in the country is predicted, and for example, a 26-bit code code is used so as not to be duplicated as the same code. For example, a unique serial number or the like is used as the transmission source code. The relay signal transmitted from the repeater 12 is also added with the serial number of the repeater as a transmission source code.

  The group code 42 is a code that is set in common to a plurality of residential alarms constituting the interlocking group, and the group code included in the event signal from another residential alarm received by the wireless communication unit 20 is registered in the memory 22. When it matches the group code 42, the event signal is processed as a valid signal, so that it is possible to avoid interference with an alarm device that is installed in a nearby house or the like and does not require interlocking. In the present embodiment, the group code 42 of the residence guard 10-1 is, for example, G1.

  The cooperation group code | symbol 45 shows the group in a cooperation relationship, and G2 is stored as a group code | symbol of the group in a cooperation relationship in this embodiment. In other words, the group (G1, G2) of group codes indicating groups in a cooperative relationship is stored in the memory 22 in advance.

  Here, assuming that the group code 42 of the home guard 10-1 is G1, and the cooperation group code 45 is G2, the group code G1 is the cooperation source group code for the group code group (G1, G2) indicating the cooperation relationship between them. Thus, the group code G2 becomes the cooperation destination group code.

  Such a cooperation group code 45 is a cooperation group code even if the group code included in the event signal received from the other home guard received by the wireless communication unit 20 does not match the group code 42 registered in the memory 22. When it matches 45, this event signal is processed as a valid signal.

  That is, when receiving an event signal including the group code G2 from the resident guards 10-4 to 10-6 belonging to the group G2 converted from the repeater 12 by converting the channel frequency from f2 to f1, the memory 22 stores the event signal. By matching the stored cooperation group code 45 (= G2), the event signal relayed and transmitted is processed as a valid signal.

  The sensor unit 24 is provided with a smoke detector 46, which detects a fire when smoke from the fire reaches a predetermined concentration. In addition to the smoke detector 46, a temperature detecting element such as a thermistor for detecting the temperature due to a fire, and various elements for detecting other physical phenomenon changes accompanying the fire may be provided. A plurality of elements that detect different phenomena may be combined.

  The notification unit 26 is provided with a speaker 48 that outputs an alarm sound and an LED 50 that displays an alarm. The speaker 48 outputs a voice message and an alarm sound from a voice synthesis circuit unit (not shown). The LED 50 displays an abnormality such as a fire by lighting, blinking, or blinking. Instead of the speaker 48, a buzzer or the like may be used.

  The operation unit 28 is provided with an alarm stop switch 52 and a channel frequency selection switch 54 that functions as a communication frequency selection instruction unit. The alarm stop switch 52 can input an alarm stop instruction only when an alarm sound is output from the notification unit 26 through the speaker 48.

  That is, the alarm stop switch 52 also functions as an inspection switch for instructing a functional inspection of the home alarm. For example, when the alarm stop switch 52 is operated during a fire alarm, the alarm is stopped, and when the alarm stop switch 52 is operated in a normal state, the function check is started and the result is notified.

  When the alarm stop switch 52 is operated in a state in which the home alarm devices 10-1 to 10-6 are emitting an alarm sound, the alarm sound stop process is performed. Here, the alarm sound stop process of the present embodiment is performed. As one of the following stop processing is performed.

  (1) When any alarm stop switch 52 other than the interlocking source is operated among the home alarm devices 10-1 to 10-6, only the interlocking source continuously outputs the alarm sound, and the interlocking destination stops the alarm sound. On the other hand, when the interlocking source alarm stop switch 52 is operated, all the alarm sounds of the interlocking source and the interlocking destination are stopped.

  (2) If any alarm stop switch 52 of the alarm devices 10-1 to 10-6 during the alarm is operated, all alarm sounds are stopped regardless of the interlock destination and the interlock source.

  (3) The stop process in (1) is the first mode, and the stop process in (2) is the second mode, and either one of the modes is selected to perform the stop process.

  The battery power source 30 uses, for example, a lithium battery or an alkaline battery having a predetermined number of cells, and has a battery capacity of, for example, 10 by reducing the power consumption of the entire circuit unit including the wireless communication unit 20 in the residential alarm 10-1. The battery life of the year is guaranteed.

  The channel frequency selection switch 54 has, for example, a dip switch connected to the processor 18. If the channel frequency selection switch 54 is switched to one of the channel frequencies f1, f2, f3, and f4, the state of the dip switch is changed to the processor when the power is turned on. 18 reads a command and transmits a command from the processor 18 to the wireless communication unit 20 according to the read state to set channel frequencies for the transmission circuit 32 and the reception circuit 34. Not limited to this, for example, the status of the DIP switch is read periodically, and the channel is switched according to the read status, or an initial value is set at the time of shipment, and interrupts whenever it is switched after power-on. May be received and changed.

  The processor 18 is provided with an event detection unit 56, a transmission processing unit 58, a reception processing unit 60, a channel frequency setting unit 62, and an alarm processing unit 64 as functions realized by executing the program.

  The event detection unit 56 detects events such as abnormality detection by the sensor unit 24, alarm stop or inspection instruction by the operation unit 28, abnormality recovery in which the abnormality detection of the sensor unit 24 disappears.

  The transmission processing unit 58 detects a detected event when the event detection unit 56 detects its own event such as abnormality detection by the sensor unit 24, alarm stop or inspection instruction by the operation unit 28, abnormality recovery in which the abnormality detection of the sensor unit 24 disappears, etc. Is transmitted from the transmission circuit 32 to the interlocking destination home alarm device.

  The reception processing unit 60 decodes the event signal received from another residence guard or repeater, and the group code included in the decoded event signal is stored in the memory 22 as its own group code 42 or the cooperative group code 45, That is, it is determined as an effective event signal when it matches one of the group code groups (G1, G2).

  The channel frequency setting unit 62 sets the transmission circuit 32 and the reception circuit 34 to the transmission / reception state of the channel frequency indicated by the operation of the channel frequency selection switch 54 of the operation unit 28, for example, f1.

  The alarm processing unit 64 outputs an alarm sound indicating the interlocking source from the speaker 48 when the event detection unit 56 detects a fire as its own abnormality, and drives the LED 50 to display the interlocking source. An event signal indicating is sent to the other residential alarm.

  More specifically, the alarm processing unit 64 is interlocked with the speaker 48 of the notification unit 26 when the event detection unit 56 detects a fire based on the smoke detection signal from the smoke detection unit 46 provided in the sensor unit 24. An alarm sound indicating the origin, for example, “Woo Woo fire is a fire” is repeatedly output, the LED 50 is turned on, for example, an alarm display indicating the interlock source is performed, and an event signal indicating a fire is further transmitted to the transmission circuit 32 of the wireless communication unit 20. Thus, the channel frequency f1 is used to transmit the signal from the antenna 21 to the other residential alarm and repeater 12.

  In addition, the alarm processing unit 64 receives an event signal indicating a fire from another house alarm device by the reception circuit 34 of the wireless communication unit 20 and becomes effective in the reception processing unit 60, and the speaker 48 of the notification unit 26. The alarm sound indicating the link destination is repeatedly output, for example, “Woo Wow another fire alarm has been activated”, and the alarm sound indicating the link destination is displayed at the same time by flashing the LED 50, for example.

  Moreover, the alarm process part 64 stops the alarm sound from the speaker 48, and stops the display of LED50, when the alarm stop operation of the alarm stop switch 52 provided in the operation part 28 is detected during the output of a fire alarm. In this case, the display by the LED 50 may be continued for a predetermined time.

FIG. 4 is an explanatory diagram showing the format of the event signal used in this embodiment. In FIG. 4 , the event signal 36 includes a serial number 38, a transmission source code 40, a group code 42, and an event code 44.

  The serial number 38 is a serial number indicating the order of event signals, and is incremented by one each time an event signal is transmitted. The serial number 38 is used to manage event signal relay processing and the like in communication between alarm devices, but will not be described in detail because it is not directly related to the present invention.

  The transmission source code 40 is a 26-bit code, for example. The group code 42 is, for example, an 8-bit code. For example, the group code G1 is set in the police station 10-1 to 10-3 and the repeater 12 in FIG. The group code G2 is set to 10-6. In the alarm system of FIG. 1, when the relay 12 converts the event signal received at the cooperation source channel frequency to the cooperation destination channel frequency and relays it, the group code 42 is transmitted as it is. .

  As the group code 42, in addition to setting the same group code for the same group of house alarms, a reference code common to the house alarms constituting a predetermined group, and a sender unique to each house alarm A different group code may be used for each residential alarm obtained from the calculation with the code.

  The event code 44 is a code representing the event contents such as fire and gas leak. In this embodiment, a 3-bit code is used. For example, “001” indicates a fire, “010” indicates a gas leak, “ “011” is recovery, “100” is alarm stop, “101” is recovery, “110” is inspection, and the rest is reserved. It should be noted that the number of bits of the event code 44 can be further increased to 4 bits and 5 bits when the types of events are increased, thereby expressing more event contents.

  FIG. 5 is a flowchart showing the basic processing of the house guard in the embodiment of FIG. In FIG. 5, when power supply is started from the battery power supply 30 of the residence guard 10-1, initialization and self-diagnosis are executed in step S <b> 1, and if there is no abnormality, the process proceeds to step S <b> 2 and provided in the operation unit 28. Based on the setting state of the channel frequency selection switch 54, the selected channel frequency, for example, f1 is set in the transmission circuit 32 and the reception circuit 34 provided in the wireless communication unit 20.

  Subsequently, the process proceeds to step S3, where the presence or absence of event detection by the event detection unit 56 is checked. If event detection is determined, the process proceeds to step S4, and processing corresponding to the detected event is executed.

  Subsequently, in step S5, it is checked whether or not an event signal has been received from another residence guard. If it is determined that an event signal has been received, the process proceeds to step S6, and processing corresponding to the received event is executed.

  FIG. 6 is a flowchart showing details of the detection event handling process in step S4 of FIG. 5, and is a process by executing a program of the processor 18.

  In FIG. 6, the detection event response process monitors the fire in step S11. If the smoke detection signal output from the sensor unit 24 exceeds a predetermined fire level, the fire is determined and the process proceeds to step S12. Then, a fire alarm indicating an interlocking source is output by an alarm sound from the speaker 48 and a display by turning on the LED 50. Then, it progresses to step S13 and transmits the event signal containing a serial number, a transmission origin code | symbol, a group code | symbol, and the event code | cord | chord which shows a fire to other dwelling policing devices and a repeater wirelessly.

  Subsequently, in step S14, it is determined whether or not there is a fire recovery in which the smoke detection signal from the sensor unit 24 is reduced and the fire is eliminated. When the fire recovery is determined, the process proceeds to step S15, where the serial number, the transmission source code, the group After the event signal including the code and the event code indicating the fire recovery is wirelessly transmitted to the other residential alarm and the repeater, the fire alarm indicating the interlocking source is stopped in step S16.

  Subsequently, in step S17, it is determined whether or not the alarm stop switch 52 is operated. If the switch operation is determined, in step S18, it is determined whether or not an alarm is being issued. If it is determined in step S18 that an alarm is in progress, the process proceeds to step S19, and an event signal including a serial number, a transmission source code, a group code, and an event code indicating an alarm stop is transmitted to other residential alarms and repeaters by radio. Later, the fire alarm is stopped in step S20.

  On the other hand, if the alarm is not being issued in step S18, it is in a normal monitoring state, so that the process proceeds to step S21 to send an event signal including a serial number, a transmission source code, a group code, and an event code indicating inspection to another After wirelessly transmitting to the home guard and the repeater, a predetermined inspection process is performed in step S22, and an inspection message indicating the inspection result is output.

  FIG. 7 is a flowchart showing details of the received event handling process in step S6 of FIG.

In FIG. 7, in step S31, it is determined whether or not an effective event signal indicating a fire from another house police is received. Effective reception of an event signal here means that the group code included in the received event signal matches the self group code that is the cooperation source or the cooperation group code that is the cooperation destination.

  If it is determined in step S31 that a valid event signal indicating a fire from another house alarm is received, the process proceeds to step S32 to display a warning alarm from the speaker 48 and blinking of the LED 50 as a fire alarm indicating the interlock destination (notification display). )I do.

  Subsequently, in step S33, it is determined whether or not a valid event signal indicating fire recovery has been received. If it is determined that a valid event signal indicating fire recovery has been received, the fire alarm is stopped in step S34.

  Subsequently, in step S35, it is determined whether or not an effective event signal indicating an alarm stop is received. If it is determined whether or not an effective event signal is received indicating an alarm stop, it is determined in step S36 whether an alarm is being received. If it is determined in step S36 that an alarm is being issued, the process proceeds to step S37 to stop the fire alarm.

  Subsequently, in step S38, it is determined whether or not an effective event signal indicating inspection is received. If it is determined that an effective event signal indicating inspection is received, it is determined whether or not an alarm is stopped in step S39. When it is determined in step S39 that the alarm is stopped, the process proceeds to step S39 to perform a predetermined inspection process and output an inspection message indicating the result from the speaker 48 of the notification unit 26.

  FIG. 8 is a block diagram showing an embodiment of the repeater 12 provided in the alarm system of FIG. In FIG. 8, the repeater 12 includes a processor 118 known as a one-chip CPU, and the processor 118 is provided with a wireless communication unit 120 including an antenna 121, a memory 122, an operation unit 128, and a battery power source 130. .

Here, the configuration of the processor 118, the wireless communication unit 120, the memory 122 , the operation unit 128, and the battery power supply 130, and the transmission processing unit 158, the reception processing unit 160, and the channel frequency setting unit 162 of the processor 118 are the same as those shown in FIG. wireless communication section 20 of the vessel 10-1, memory 22, the transmission processing unit 58 of the configuration and the processor 18 of the operation unit 28 and the battery power supply 30, but the reception processing unit 60 and the channel frequency setting unit 6 2 is basically the same The first channel transmission circuit 132-1 and the first channel reception circuit 134-1 in which the channel frequency f1 is set in the wireless communication unit 120, the second channel transmission circuit 132-2 and the second channel in which the channel frequency f2 is set. A first channel frequency that is provided with a receiving circuit 134-2 and functions as a frequency selection instruction unit in the operation unit 128. -Option switches 154-1 and provided with the second channel frequency selection switch 154-2, further differs in having a relay processing unit 166 to the processor 118. The transmission / reception circuits and channel frequency selection switches for the channel frequencies f3 and f4 are not shown.

  The first channel frequency selection switch 154-1 and the second channel frequency selection switch 154-2 of the operation unit 128 are, for example, dip switches, and select one of the four channel frequencies f1, f2, f3, and f4 in the 400 MHz band. When the alarm system of FIG. 1 is targeted, the channel frequency f1 of the group G1 is selected by the first channel frequency selection switch (bit) 154-1 and the group is selected by the second channel frequency selection switch 154-2. The channel frequency f2 of G2 is selected. The selection switches for the channel frequencies f3 and f4 are not shown.

  The channel selection states of the first channel frequency selection switch 154-1 and the second channel frequency selection switch 154-2 are read by the processor 118, and the channel frequency setting unit 162 is connected to the first channel transmission circuit 132-1 of the wireless communication unit 20. The channel frequency f1 of the group G1 is set in the first channel reception circuit 134-1 and the channel frequency f2 of the group G2 is set in the second channel transmission circuit 132-2 and the second channel reception circuit 134-2.

  The relay processing unit 166 provided in the processor 118 is configured such that the group code included in the event signal of the channel frequency f1 or f2 received by the wireless communication unit 120 is the own group code 42 or the cooperation source stored in the memory 122. It is determined as a valid event signal indicating the cooperation source when it matches any of the group codes 45, that is, the group code groups (G1, G2) in the cooperation relationship, and the channel frequency set in the cooperation destination group is used. Relay the received signal.

  More specifically, when the relay processing unit 166 determines the group code G1 from the event signal reception at the channel frequency f1 by the first channel reception circuit 134-1, the resident alarm devices 10-1 to 10-1 having the cooperation source as the group G1. 10-3 is determined as an event signal from any one of them, the group G2 to be linked is recognized, the second channel transmission circuit 132-2 having the channel frequency f2 set in the group G2 is selected, and the channel The event signal is relayed and transmitted to the residence guards 10-4 to 10-6 of the group G2 at the frequency f2.

  Further, when the relay processing unit 166 determines the group code G2 from the event signal reception at the channel frequency f2 by the second channel reception circuit 134-2, any one of the residential alarm devices 10-4 to 10-6 whose group is the group G2 is selected. It is discriminated from the event signal, and the group G1 to be linked is recognized, the first channel transmission circuit 132-1 having the channel frequency f1 set in the group G1 is selected, and the residence of the group G1 is determined by the channel frequency f1. Event signals are relayed to the alarm devices 10-1 to 10-3.

  By such relaying operation of the repeater 12, the residence guards 10-1 to 10-3 that set the group G1 and the channel frequency f1, and the residence guards 10-4 to 10- that set the group G2 and the channel frequency f2. The fire alarm can be linked and alarmed by transmitting and receiving event signals while constructing a communication environment that can reduce signal collision with each other.

FIG. 9 is a flowchart showing relay processing in the repeater 12 of FIG. Here, a case where two channels of channel frequencies f1 and f2 are used will be described. In FIG. 9, for example, when the operation of the repeater 12 is started by supplying power from the battery power supply 130 , after performing initialization processing and self-diagnosis in step S <b> 51, if there is no abnormality, the process proceeds to step S <b> 52 and is provided in the operation unit 28. Based on the state of the first channel frequency selection switch 154-1 and the second channel frequency selection switch 154-2, the first channel transmission circuit 132-1 and the first channel reception circuit 134-1 provided in the wireless communication unit 120 are connected. For example, the channel frequency f1 is set, and for example, the channel frequency f2 is set in the second channel transmission circuit 132-2 and the second channel reception circuit 134-2. That is, transmission / reception at the frequency f1 and the frequency f2 is enabled or effective.

  In step S53, it is determined whether or not a valid event signal has been received. Here, the effective event signal reception means that the event code included in the received event signal coincides with its own group code as the cooperation source or the cooperation group code as the cooperation destination, as in the case of the residential alarm in FIG. Means that.

  If it is determined in step S53 that a valid event signal has been received, the process proceeds to steps S54 and S55, where the event signal is decoded, and it is determined whether or not the group code of the cooperation destination is group G2 based on the group code of the cooperation source included in the event signal. . That is, it is confirmed that the group code included in the event signal is the group G1, and it is specifically determined that the cooperation destination is the group G2.

  If it is determined in step S55 that the cooperation destination is the group G2, the process proceeds to step S56, where an event signal having the same event content as the received event signal as a transmission source is generated, and the second channel frequency f2 is used. That is, the event signal is relayed and transmitted using the second channel transmission circuit 32-2 of the wireless communication unit 20. At this time, the group code in the event signal relayed and transmitted also indicates the group code included in the event signal received from the cooperation source before relaying, that is, the group G1.

  On the other hand, if the cooperation destination is not the group G2 in step S55, the process proceeds to step S57 to determine whether the cooperation destination is the group G1, and if it is determined that the cooperation destination is G1, the process proceeds to step S58, and the received event signal and An event signal having the same event content as a transmission source is generated, and the event signal is generated using the first channel frequency f1, that is, using the first channel transmission circuit 132-1 of the wireless communication unit 20. Relay transmission. At this time, the group code in the event signal relayed and transmitted also indicates the group code included in the event signal received from the cooperation source before relaying, that is, the group G2.

  FIG. 10 is an explanatory diagram showing a second embodiment of the alarm system according to the present invention, taking a two-group configuration as an example. In the second embodiment, the alarm code is linked between different groups by converting the group code of the event signal received by the repeater into the group code of the cooperation destination and relay transmitting. To do.

  In FIG. 10, in a monitoring area such as a house, for example, six residence police devices 10-1 to 10-6 are arranged in groups G1 and G2, and a repeater is provided in one group, for example, group G1. 12 is arranged.

  The group G1 is composed of three residential alarms 10-1 to 10-3 and a repeater 12, and is one of four channel frequencies (communication frequencies) f1, f2, f3, and f4 in the 400 MHz band, for example, a channel. The frequency f1 is set.

  Group G2 is composed of three residential alarms 10-4 to 10-6, and sets one of four channel frequencies (communication frequencies) f1, f2, f3, and f4 in the 400 MHz band, for example, channel frequency f2. doing.

  Only the self group code G1 is registered in the residence guards 10-1 to 10-3 of the group G1, and the cooperation group code of the system of FIG. 1 is not registered. Moreover, only the own group code | symbol G2 is registered into the residence police device 10-4 to 10-6 of the group G2.

  Both the channel frequency f1 of the group G1 and the channel frequency f2 of the group G2 are set in the repeater 12, and the signal received at the channel frequency f1 is converted into a signal of the channel frequency f2 and relayed and transmitted. The signal received at f2 is converted into a signal of channel frequency f1 and relayed.

  Moreover, since the repeater 12 belongs to the group G1, the group of the self group code G1 and the cooperation group code | symbol G2 which shows the group G2 which has a cooperation relationship is registered similarly to the housing police devices 10-1 to 10-3. ing.

  When the repeater 12 receives the event signal of the channel frequency f1 from the home guards 10-1 to 10-3 of the group G1, the repeater 12 confirms that the group code G1 included in the received event signal matches its own group code G1. An event signal obtained by converting the group code G1 into the group code G2 of the cooperation destination is generated by determining and making an effective received signal, and relayed using the channel frequency f2 of the group G2 of the cooperation destination.

  In addition, when the repeater 12 receives the event signal of the channel frequency f2 from the home guards 10-4 to 10-6 of the group G2, the group code G2 included in the received event signal matches the cooperation group code G2. The event signal obtained by converting the group code G2 into the group code G1 of the cooperation destination is generated by determining this, and relay-transmitted using the channel frequency f1 of the group G1 of the cooperation destination.

  In this way, the group code of the cooperation source included in the event signal received by the repeater 12 is converted into the group code of the cooperation destination and relay-transmitted, so that the home guards 10-1 to 10-6 of the groups G1 and G2 Therefore, it is only necessary to register its own group code, and the processing is simpler than the first embodiment of FIG.

  10 is basically the same as that of FIG. 3, but it is not necessary to store the cooperation group code 45 in the storage unit 22, and The reception processing unit 60 of the processor 18 is effective if the group code of the received event signal matches the group code 42 of its own, and does not need to be compared with the cooperation group code.

  The repeater 12 is basically the same as that shown in FIG. 7 except that the relay processing unit 66 converts the group code of the received event signal into the group code of the cooperation destination.

FIG. 11 is a flowchart showing relay processing in the repeater 12 of FIG. Here, a case where two channels of channel frequencies f1 and f2 are used will be described. In FIG. 11, when the operation of the repeater 12 is started by supplying power from the battery power supply 130 , after performing initialization processing and self-diagnosis in step S61, if there is no abnormality, the process proceeds to step S62, and the operation unit 28 is provided. Based on the state of the first channel frequency selection switch 154-1 and the second channel frequency selection switch 154-2, the first channel transmission circuit 132-1 and the first channel reception circuit 134-1 provided in the wireless communication unit 120 are, for example, The channel frequency f1 is set, and for example, the channel frequency f2 is set in the second channel transmission circuit 132-2 and the second channel reception circuit 134-2. That is, transmission / reception at the frequency f1 and the frequency f2 is enabled or effective.

  In step S63, it is determined whether a valid event signal is received. As in the case of the repeater shown in FIG. 8, “effective event signal reception” means that the event code included in the received event signal matches the own group code as the cooperation source or the cooperation group code as the cooperation destination. Means.

  If it is determined in step S63 that a valid event signal has been received, the process proceeds to step S64 where the event signal is decoded. In step S65, it is determined whether or not the group code of the cooperation destination is group G2 based on the group code of the cooperation source included in the event signal. To do.

  If it is determined in step S65 that the cooperation destination is group G2, the process proceeds to step S66, where the event signal has the same event content as the received event signal, but the transmission source is the repeater 12 having the group code converted from G1 to G2. In step S67, the second channel frequency f2 is used, that is, the event signal is relayed and transmitted using the second channel transmission circuit 32-2 of the wireless communication unit 20.

  On the other hand, if the cooperation destination is not the group G2 in step S65, the process proceeds to step S68 to determine whether the cooperation destination is the group G1, and if it is determined that the cooperation destination is G1, the process proceeds to step S69, and the received event signal and An event signal having the same event content but having the group code converted from G1 to G2 as a transmission source is generated, and the first channel frequency f1 is used in step S70, that is, the radio communication unit 120 The event signal is relayed and transmitted using the 1-channel transmission circuit 132-1.

  In the embodiment of FIG. 10, the repeater 12 converts the group code into a cooperation destination group code and relays it. However, as another embodiment, the repeater 12 does not convert the group code, and FIG. The event signal 36 to which the cooperation group code indicating the cooperation destination is further added is transmitted, the channel frequency is converted by the repeater 12, and the event signal is relayed and transmitted as it is. When receiving the signal, if either the event code included in the event signal or the associated event code matches the event code registered by itself, it may be processed as an effective signal.

  In the above embodiment, the number of housing alarms constituting a group using the same channel frequency is set to three to reduce signal collision. However, the number of channels and the number of alarms per group are further increased. If you increase it, you can also increase the overall number of interlocking units. However, in this case, adjustment is made within a range not impairing the object of the present invention.

  Moreover, it does not prevent that the number of the residential alarms which comprise one channel group becomes one.

  In the above embodiment, each alarm device communicates with each other without discrimination between the parent device and the child device. However, each channel group is provided with a parent device and a child device, and the repeater is the parent device of each channel group. You may make it communicate between.

  And you may make it communicate via a repeater between the channel group comprised by a main | base station and a subunit | mobile_unit, and the channel group which does not have a main | base station and a subunit | mobile_unit. At this time, the function of the repeater of the present invention may be added to at least one of the parent devices.

  In the above embodiment, signal relay between channel groups is performed using a single repeater. However, a plurality of repeaters may be used. At this time, each repeater does not necessarily need to cover all the channel frequencies used in the channel group, and it is sufficient that a plurality of repeaters can cover the channel frequencies of all the channel groups in total.

  For example, only channel frequency f1 is received and transmitted using only f3, only channel frequency f1 is received and transmitted using f2 and f3, channel frequencies f1 and f2 are received, and only f3 is used. Thus, it is possible to cover the whole by using a plurality of appropriately combined repeaters such as transmitting and transmitting channel frequencies f1 and f2 and transmitting using f3 and f4. Of course, a plurality of repeaters may receive all channel frequencies and transmit using a channel frequency different from the reception frequency.

  Further, the repeater may determine whether or not to relay according to the event content indicated by the event signal received from each channel group, and in this way, the link between the channel groups is required. An event and an unnecessary event may be distinguished and processed. For example, relaying abnormal events such as fire, and not relaying sudden failure events such as battery voltage drop, etc., it is possible to properly coordinate system-wide interlocking control according to the purpose, application, operating environment, etc. it can.

  In addition, the above embodiment is an example of a residential alarm device that detects and alarms a fire. However, an alarm system including a gas leak alarm device, a CO alarm device, various security alarm devices, and these alarm devices. The present invention can be similarly applied to a system including a combination of.

  In addition, the flowcharts in the above-described embodiments have described a schematic example of processing, and the order of processing is not limited to this. Further, it is possible to provide a delay time between each process or between processes, insert another determination, or the like.

  Further, the above-described embodiment is applicable not only to residential use but also to various types of alarm devices such as buildings and offices.

  In the above embodiment, the alarm unit is provided with the sensor unit and the alarm output processing unit as an example. However, as another embodiment, the alarm unit has a separate sensor unit and alarm output processing unit. There may be.

The present invention is not limited to the above-described embodiments, includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiments.

10-1 to 10-6: Residential alarm device 12 :: Repeater 18, 118: Processor 20, 120: Wireless communication unit 21, 21: Antenna 22, 122: Memory 24: Sensor unit 26: Notification unit 28, 128: Operation unit 30, 130: Battery power source 32: Transmission circuit 34: Reception circuit 36: Event signal 38: Serial number 40: Transmission source code 42: Group code 44: Event code 46: Smoke detection unit 48: Speaker 50: LED
52: Alarm stop switch 54: Channel frequency selection switch 56: Event detection unit 58, 158: Transmission processing unit 60, 160: Reception processing unit 62, 162: Channel frequency setting unit 64: Alarm processing units 132-1 to 132-4 : First to fourth channel transmission circuits 134-1 to 134-4: first to fourth channel reception circuits 154-1 to 154-4: first to fourth channel frequency selection switch 166: relay processing unit

Claims (12)

In the monitoring area, multiple alarm devices that detect an abnormality and output an abnormality alarm are arranged, and the alarm device that detects the abnormality outputs an abnormality alarm indicating the interlocking source and transmits an abnormality signal to other alarm devices. In an alarm system that outputs an abnormal alarm indicating the linkage destination,
A plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and the same communication frequency is used between the alarm devices belonging to each group, and its own group code is included. signals as well as radio transmission and reception, place the repeater is in cooperative relationship wirelessly relays the signal between alarm devices belonging to a group that uses a different communication frequencies,
The repeater, the group code and associating the communication frequency is set, the signal received from the Ah Ru alarm unit converts the number of communication frequency associated with the group code of the relay destination group for each group of relays Send
Before Ki警 report unit sets a group in its group and cooperative relationship, the other alarm devices or said group code included in the transponder or we received the No. Shin also self of Group Coordination An alarm system characterized by processing a signal as a valid signal when a group having a relationship is indicated .
2. The alarm system according to claim 1, wherein the repeater is included in any one of the groups that use the different communication frequencies in the cooperative relationship .
The alarm system according to claim 1, wherein the alarm device comprises:
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that stores in advance a set of group codes indicating groups in a cooperative relationship;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit for transmitting an event signal including the event content detected by the event detection unit and its own group code to another alarm device and the repeater;
When the group code contained in the event signal received from another alarm device or the repeater showed a group of one set of group code stored in the storage unit, the event signal as a valid signal A reception processing unit for receiving;
Wherein upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, whereas An alarm processing unit that outputs an abnormal alarm indicating a linkage destination from the notification unit when an effective event signal indicating abnormality is received from another alarm device;
And communication frequency selection instruction unit for instructing the selection of either the plurality of communication frequencies predetermined,
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency of the transmission and reception circuit unit at the communication frequency selection instruction unit,
An alarm system characterized by comprising:
The alarm system according to claim 1, wherein the repeater is:
A storage unit that stores in advance a set of group codes indicating the group to be relayed ;
A plurality of transmission / reception circuit units that respectively transmit and receive signals of communication frequencies set for each group to be relayed ;
When the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, it determines the signal as a valid signal, a group of relay destination and relay processing unit to send using the set communication frequency,
An alarm system characterized by comprising:
A plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and the same communication frequency is used between the alarm devices belonging to each group, and its own group code is included. In an alarm device used in an alarm system in which a relay device that wirelessly relays the signal is arranged between alarm devices belonging to a group that uses a different communication frequency while wirelessly transmitting and receiving a signal ,
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that stores in advance a set of group codes indicating groups in a cooperative relationship;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit for transmitting an event signal including the event content detected by the event detection unit and its own group code to another alarm device and the repeater;
Receiving the event No. as a valid signal if the group code contained in the event signal received from another alarm device or the repeater showed one of the groups set of group code stored in the storage unit A reception processing unit to
Wherein upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, whereas An alarm processing unit that outputs an abnormal alarm indicating a linkage destination from the notification unit when an effective event signal indicating abnormality is received from another alarm device;
A communication frequency selection instruction unit for instructing selection of any of a plurality of predetermined communication frequencies;
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency of the transmission and reception circuit unit at the communication frequency selection instruction unit,
An alarm device comprising:
A group in which a plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and alarm devices belonging to each group indicate their own groups using the same communication frequency In a repeater that is arranged in an alarm system that wirelessly transmits and receives a signal including a code and wirelessly relays the signal between groups that are in a cooperative relationship but use different communication frequencies ,
A storage unit that stores in advance a set of group codes indicating the group to be relayed ;
A plurality of transmission / reception circuit units that respectively transmit and receive signals of communication frequencies set for each group to be relayed ;
Determining an effective signal indicating the cooperation source if the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, the group of cooperator the signal thus received by using the set communication frequency and relay processing unit for relaying transmission,
A repeater characterized by comprising:
In the monitoring area, multiple alarm devices that detect an abnormality and output an abnormality alarm are arranged, and the alarm device that detects the abnormality outputs an abnormality alarm indicating the interlocking source and transmits an abnormality signal to other alarm devices. In an alarm system that outputs an abnormal alarm indicating the linkage destination,
A plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and the same communication frequency is used between the alarm devices belonging to each group, and its own group code is included. signals as well as radio transceiver, although the cooperative relationship arranged repeater wirelessly relays the signal between alarm devices belonging to a group that uses a different communication frequencies,
The relay sets in association with the group code and communication frequency for each group of relays, the group code contained in Ah Ru alarm device or we received the said signal and converts the group code of the relay destination group , and transmits the converted to the number of communication frequency associated with the converted group code,
Before Ki警 paper instrument, when setting a group of self, the group code contained in the other alarm devices or said repeater or we received the No. signal indicating the self group, effective the signal An alarm system characterized by processing as a signal.
8. The alarm system according to claim 7, wherein the repeater is included in any of the groups that are in the cooperative relationship but use different communication frequencies .
8. The alarm system according to claim 7, wherein the alarm device includes:
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that pre-stores its own group code;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit for transmitting an event signal including the event content detected by the event detection unit and its own group code to another alarm device and the repeater;
When the group code contained in the event signal received from another alarm device or the repeater showed group code stored in the storage unit, and a reception processing unit that receives the event signal as a valid signal,
Wherein upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, whereas An alarm processing unit that outputs an abnormal alarm indicating a linkage destination from the notification unit when an effective event signal indicating abnormality is received from another alarm device;
And communication frequency selection instruction unit for instructing the selection of either the plurality of communication frequencies predetermined,
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency of the transmission and reception circuit unit at the communication frequency selection instruction unit,
An alarm system characterized by comprising:
The alarm system according to claim 7, wherein the repeater is:
A storage unit that stores in advance a set of group codes indicating the group to be relayed ;
A plurality of transmission / reception circuit units that respectively transmit and receive signals of communication frequencies set for each group to be relayed ;
When the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, it determines the signal as a valid signal, relays the group code converts the group code of the previous group, a relay processing unit to send using the communication frequency associated with the converted group code,
An alarm system characterized by comprising:
An alarm device comprising:
A plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and the same communication frequency is used between the alarm devices belonging to each group, and its own group code is included. In an alarm device used in an alarm system in which a relay device that wirelessly relays the signal is arranged between alarm devices belonging to a group that uses a different communication frequency while wirelessly transmitting and receiving a signal ,
A sensor unit that detects and outputs a physical phenomenon in the monitoring area;
A storage unit that pre-stores its own group code;
A transmission / reception circuit unit for transmitting / receiving signals to / from other alarm devices;
A notification unit for outputting an abnormality alarm;
An event detection unit for detecting an event including the presence or absence of abnormality from the detection output of the sensor unit;
A transmission processing unit for transmitting an event signal including the event content detected by the event detection unit and its own group code to another alarm device and the repeater;
When the group code contained in the event signal received from another alarm device or the repeater showed group code stored in the storage unit, and a reception processing unit that receives the event signal as a valid signal,
Wherein upon detecting an event involving abnormal event detection unit, with to output an abnormality alarm indicating a linkage source from the alert section, to transmit an event signal indicating an abnormality from the communication circuit unit to the other alarm devices, whereas An alarm processing unit that outputs an abnormal alarm indicating a linkage destination from the notification unit when an effective event signal indicating abnormality is received from another alarm device;
A communication frequency selection instruction unit for instructing selection of any of a plurality of predetermined communication frequencies;
A communication frequency setting unit which can be transmitted and received to set at the indicated communication frequency of the transmission and reception circuit unit at the communication frequency selection instruction unit,
An alarm device comprising:
A group in which a plurality of groups of one or a plurality of alarm devices are configured so that different communication frequencies can be used for each group, and alarm devices belonging to each group indicate their own groups using the same communication frequency In a repeater that is arranged in an alarm system that wirelessly transmits and receives a signal including a code and wirelessly relays the signal between groups that are in a cooperative relationship but use different communication frequencies ,
A storage unit that stores in advance a set of group codes indicating the group to be relayed ;
A plurality of transmission / reception circuit units each transmitting and receiving a signal of a channel frequency set for each group to be relayed ;
When the group code contained in the signal received from a certain alarm device showed a group of one set of group code stored in the storage unit, it determines the signal as a valid signal, relays the group code converts the group code of the previous group, a relay processing unit to send using the communication frequency associated with the converted group code,
A repeater characterized by comprising:

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