JP2008033428A - Wireless residential fire alarm and wireless residential fire alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless residential fire alarm that prevents an alarm output from the same type of wireless residential fire alarm mounted in neighboring dwelling units within a propagation range when outputting a fire signal to another wireless residential fire alarm constituting a system upon detecting a fire factor. <P>SOLUTION: The wireless residential fire alarm comprises: a detection means 12 for detecting a fire factor such as smoke or heat; an alarm means 18 for outputting an alarm when the fire factor is detected; a storage part 15 for storing a system identification code for the wireless system; a radio signal transmission part 11B for transmitting as a radio signal a fire signal including the system identification code stored in the storage part 15 when the fire factor is detected; a radio signal reception part 11A for receiving a radio signal; and a control part 10 for triggering the alarm means 18 to output an alarm if the received radio signal includes the system identification code stored in the storage part 15 and the fire signal. A product serial number is stored in advance in the storage part 15 as the system identification code. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fire alarm for a wireless house that detects a fire factor such as smoke and heat and outputs an alarm, and a fire alarm system for a wireless house using the same.

  Recently, residential fire alarms have been widely used, and when a fire factor such as smoke or heat is detected, a predetermined alarm is output to notify the householder of the fire.

  Patent Document 1 discloses a residential fire alarm system using such a residential fire alarm, and the residential fire alarm system includes a plurality of residential fire alarms installed according to a monitoring area. Power supply means for other residential fire alarms using commercial power as an operating power source for any residential fire alarm. And a plurality of child alarm devices that receive power supply from the parent alarm device through a two-wire signal line.

  When either the parent alarm device or the child alarm device detects a fire factor, the voltage level generated in the 2-wire signal line is lowered to the notification level, and the voltage level of the 2-wire signal line is set to the notification level. When it is detected that the voltage has dropped, the alarm is output.

With such a configuration, each residential fire alarm is provided with no means for using a commercial power supply as an operating power supply, and the wiring for connecting each residential fire alarm is a two-wire signal line. Wiring can be simplified by unifying.
JP 2005-339032 A

However, in such a system, it is necessary to connect the fire alarms for homes with signal lines, and the wiring work is difficult, and the signal lines are exposed on the ceiling surface or the like, so that the appearance is not good.
Therefore, in recent times, wireless has been achieved, but when there is a similar type of fire alarm for wireless housing in a neighboring house within the propagation range of the radio signal, especially in a nearby dwelling unit such as a housing complex. In some cases, a fire alarm for a wireless house in a neighboring house may receive a radio signal and output a warning.

  The present invention is proposed in consideration of such circumstances, and when a fire signal is output to another wireless residential fire alarm that constitutes a system by detecting a fire factor, the propagation range is within the range. Even if there is a similar type of fire alarm for a residential house in a nearby dwelling unit, there is no alarm output from that alarm, and a fire alarm system for a wireless house using this The purpose is to provide.

In order to achieve the above object, according to claim 1 of the present invention, a detection means for detecting a fire factor such as smoke and heat, an alarm means for outputting an alarm when the detection means detects a fire factor, and a wireless system A storage unit for storing a system identification code; a wireless signal transmission unit for transmitting a system identification code stored in the storage unit as a wireless signal when the detection means detects a fire factor; A radio signal receiving unit for receiving the signal, and a control unit for operating the alarm means and outputting an alarm when the received radio signal includes a system identification code stored in the storage unit and a fire signal, The serial number of the product is stored in advance as a system identification code in the storage unit.
Here, the system identification code to be stored in the storage unit may be a serial number assigned in advance to each product, or a serial number assigned to any of the wireless residential fire alarms constituting the wireless system. Also good.

  In the second aspect, the serial number of the product is rewritably stored in the storage unit. Here, the system identification code may be stored in the storage unit by operating a dip switch.

  According to a third aspect of the present invention, a commercial AC power supply is provided, and the radio signal receiving unit is configured to receive a fire signal with the commercial AC power supply.

  According to a fourth aspect of the present invention, a system identification code registering unit having a registration switch is further provided, and the system identification code registering unit detects another wireless house fire alarm in the system within a predetermined time after the registration switch is operated. When a wireless signal is received from the device, the system identification code included in the wireless signal is automatically overwritten in the storage unit.

  A fifth aspect of the present invention is a wireless residential fire alarm system, which is configured by combining a plurality of wireless residential fire alarms according to any one of the first to fourth aspects.

The present invention has the following effects.
According to the first aspect, since the serial numbers of the products without duplication are stored in advance in the storage unit at the product manufacturing stage as the system identification codes in all the wireless fire alarms, the system identification codes are newly renewed on the user side. No need to register and set up.
Also, even if there is a similar type of wireless residential fire alarm in a neighboring house within the radio signal propagation range, the wireless residential fire alarm does not match the system identification code and does not output an alarm. It can prevent that the fire alarm for wireless homes of a house receives a radio signal and performs alarm output.

According to the second aspect, since the serial number of the product is stored in the storage unit in a rewritable manner, the serial number of the other fire alarm for the wireless house can be rewritten as the system identification code.
In such a configuration, if the serial number of the product stored in the storage unit of one wireless fire alarm is rewritten to the storage unit of another wireless fire alarm and stored as the serial number of the same product Because a wireless system with a single system identification code can be created as a whole, a control program for a wireless fire alarm can be easily configured, and even if there are similar types of wireless fire alarms in neighboring houses, It can prevent that the fire alarm for wireless houses receives a radio signal and outputs an alarm.

  According to claim 3, since the radio signal receiving unit is configured to receive the fire signal from the commercial AC power supply, there is no fear of running out of the battery, and the radio signal receiving unit can wait for the radio signal from another wireless residential fire alarm. , Improve system reliability.

  According to claim 4, the system identification code registration means receives a radio signal from another wireless residential fire alarm in the system within a predetermined time after the registration switch is operated, and is included in the radio signal. Since the system identification code is overwritten in the storage unit, it is convenient for the user to construct a wireless system that does not interfere with the system of neighboring dwelling units with a simple operation.

  According to claim 5, it is possible to provide a fire alarm system for a wireless house that exhibits the effects of claims 1-4.

  Embodiments of the present invention will be described below.

FIG. 1 is a system configuration diagram showing an example of a configuration of a wireless residential fire alarm system according to the present invention.
The wireless residential fire alarm system of the present invention is configured by combining a plurality of residential fire alarms 1 installed for each monitoring area. When each fire alarm 1 for a house detects a fire factor such as smoke or heat, it outputs an alarm from itself and includes a system identification code and a fire signal for the other fire alarms 1 for a house. Send a radio signal.

In addition, when a wireless signal including a system identification code and a fire signal is received from another residential fire alarm device 1, the system identification code is collated, and then an alarm is output from itself, and the system identification code and the fire interlock are connected. A wireless signal including the signal is transmitted to another residential fire alarm 1.
Further, when a wireless signal including a system identification code and a fire interlocking signal is received from another residential fire alarm device 1, an alarm is output.

  As a result, when a fire occurs in a certain monitoring area in the house, an alarm output is propagated throughout the house, so that the resident can be alerted.

FIG. 2 is a block diagram showing an example of a main part configuration of the residential fire alarm device of the present invention.
This residential fire alarm device 1 includes a control unit 10, a wireless transmission / reception unit 11, a fire detection unit 12, which constitutes a detection unit, an operation unit 13, a display unit 14, a storage unit 15, a power supply unit 16, an antenna unit 17, an alarm unit. And an alarm output unit 18 configured to output an alarm using an audio signal generated by the audio synthesizing unit 19.
Here, the system identification code registration means includes a system identification code registration unit 10G and a registration switch 13E.

  The control unit 10 is composed of a CPU or the like, and is provided to control the residential fire alarm device 1. When a wireless signal is received from another wireless residential fire alarm device 1, an ID verification unit to be described later 10E checks the system identification code contained in the received wireless signal, and if it matches the system identification code stored in the ID storage means 15A, it enables the reception of the wireless signal, but does not match In that case, the reception of the radio signal is invalidated.

10 A of radio | wireless part control parts control the transmission and reception process of the radio | wireless transmission / reception part 11 preset to the same electromagnetic wave channel.
The fire determination means 10B constitutes detection means, and determines whether or not a fire has occurred based on the fire factor detected by the fire detection unit 12. When analog data indicating the level of a fire factor such as smoke or heat is input from the fire detection unit 12, it is determined whether or not a certain threshold value is exceeded. Judge that
In addition, when the fire detection unit 12 inputs digital data that is output when the level of a fire factor such as smoke or heat exceeds a certain threshold value, the fire is detected with the input. Judge that it has occurred.

The mode switching means 10C switches between a normal mode for performing fire monitoring, a test mode for performing internal tests, and a system identification code registration mode for registering system identification codes by operating the operation mode setting switch 13B.
The ringing control means 10D receives a fire signal or a fire-linked signal from the fire alarm 1 for another wireless house when the fire determination means 10B determines that a fire has occurred, or by the ID verification means 10E, When the system identification code can be verified, the voice synthesizer 19 is operated to generate a predetermined voice message and output it from the alarm output unit 18.
The ID collating means 10E collates the system identification code included in the radio signal received from the other residential fire alarm device 1 and informs the control unit 10 of the collation result. Receiving this, the control part 10 performs the alarm by the ringing control means 10D and the interlocking alarm process mentioned later.

  The delay timer 10F is provided for measuring a delay time specific to each wireless residential fire alarm 1, and after receiving a radio signal including a fire signal from another wireless residential fire alarm 1, the delay timer 10F is delayed. If the delay time can be measured, the control unit 10 is notified accordingly. When the control unit 10 receives the notification, the control unit 10 performs an interlocking alarm process to be described later, and transmits a wireless signal including the fire interlocking signal to the other wireless residential fire alarm device 1.

  During the execution of the system identification code registration mode, the system identification code registration unit 10G receives the system identification code and the fire signal from another wireless residential fire alarm 1 during a predetermined time when the registration switch 13E is operated. When the included radio signal is received, the system identification code included therein is overwritten and registered in the ID storage means 15A.

The wireless transmission / reception unit 11 is provided for transmitting and receiving a wireless signal to and from the other wireless residential fire alarm 1 through the antenna 17, and is wireless with a frequency band set by operating the channel setting switch 13A. By transmitting and receiving signals, only wireless signals can be transmitted to and received from the wireless residential fire alarm 1 used in the same system.
11 A of reception parts comprise the radio signal receiving part, and always accept the radio signal from the fire alarm 1 for other houses. Receives wireless signals including fire signals and wireless signals including fire-linked signals.
The transmitter 11B constitutes a radio signal transmitter, and when the fire determination means 10B determines that a fire has occurred, it transmits a radio signal including a system identification code and a fire signal. Further, in an interlocking alarm process described later, a radio signal including a system identification code and a fire interlocking signal is transmitted.

  The fire detection unit 12 includes a sensor unit 12A that detects fire factors such as smoke and heat. The sensor unit 12A monitors fire factors such as smoke and heat, and outputs analog data indicating these levels to the control unit 10. In addition, when the level of a fire factor such as smoke or heat exceeds a certain threshold value, digital data indicating that fact is output to the control unit 10.

  The operation unit 13 includes various operation switches, and is set to any one of a channel setting switch 13A for setting a frequency band of a radio signal handled by the wireless residential fire alarm 1, a normal mode, a test mode, and a system identification code registration mode. Stored in the ID storage means 15A for the operation mode setting switch 13B that is operated to switch the operation mode, the alarm stop button 13C that is operated to stop the alarm output, and the fire alarm 1 for other wireless houses. A test transmission switch 13D for transmitting a system identification code, and a registration switch 13E operated to rewrite and register the system identification code included in the wireless signal when a wireless signal is received from the other fire alarm 1 for a residential house Is provided.

The display unit 14 includes an energization indicator lamp 14A that is turned on when power is supplied from the power supply unit 16, and an operation lamp 14B that is turned on when the fire determination unit 10b determines that a fire has occurred.
Here, the operation lamp 14B may notify by lighting or blinking that the registration of the system identification code is completed in the system identification code registration mode.

The storage unit 15 includes an ID storage unit 15A and stores a system identification code. At the time of shipment from the factory, a unique serial number for identifying each product is stored as a system identification code. In the system identification code registration mode to be described later, the system is started from another wireless residential fire alarm 1. When a wireless signal including an identification code is received, the received system identification code is rewritten and registered.
Instead of rewriting and registering the received system identification code, the received system identification code may be additionally registered while storing the serial number stored as the system identification code at the time of factory shipment. In this case, if a predetermined cancel operation is performed to delete the additionally registered system identification code and the original serial number is restored as the system identification code, it can be beneficial for product management.

The power supply unit 16 is composed of a commercial AC power supply, and supplies power to each unit.
The voice synthesizer 19 stores a plurality of voice data in advance, synthesizes the voice data based on the control of the control unit 10, and outputs the synthesized voice data to the alarm output unit 18. In the system identification code registration mode, it may be notified by voice that the registration of the system identification code is completed.

FIG. 3 is a flowchart for explaining the system identification code registration mode of the wireless residential fire alarm device 1 (100 to 104).
When the wireless alarm device 1 is shipped from the factory, the serial number is stored in advance as a system identification code. During execution of the system identification code registration mode, the registration switch 13E is operated, and the system identification code stored in the fire alarm 1 is transmitted from another wireless residential fire alarm 1 for a predetermined time. When a wireless signal including a fire signal is received, it is rewritten and registered in the ID storage means 15A as the received system identification code.
It should be noted that such a system identification code registration mode automatically returns to the normal mode when no radio signal is received from another wireless residential fire alarm 1 for a predetermined time from the start.
Even when the test transmission switch 13D of the other fire alarm 1 for wireless houses is operated and the system identification code stored in the fire alarm 1 is received, the received system identification code is rewritten and registered. It may be.

FIG. 4 is a diagram for schematically explaining the system identification code registration mode of the fire alarm 1 for a wireless house.
In the fire alarm 1 for wireless houses, a unique serial number is stored in advance at the time of factory shipment. When the fire alarm is detected in the wireless home fire alarm 1 (N0 shown in FIG. 1), the unique serial number “12345567890” stored as the system identification code is stored in another wireless home fire alarm. The other wireless house fire alarm device 1 (N1 shown in FIG. 1) that has been transmitted to 1 and received it rewrites and registers the received system identification code.
In each wireless residential fire alarm 1, the serial number stored in advance is not rewritten.

FIG. 5 is a flowchart for explaining the operation in the normal mode of the wireless alarm for homes (200 to 227).
In this system, when the fire alarm 1 for the wireless home that is the source of the fire generates an alarm output, a wireless signal including a fire signal is transmitted to the nearby fire alarm 1 for the wireless home, and then it is used as a relay point. The other wireless house fire alarm 1 is subjected to a process of transmitting a radio signal including an interlock signal, and an alarm is output from the entire system.

  That is, when any of the wireless home fire alarms 1 detects a fire factor, the alarm device 1 sets a fire detection flag, outputs an alarm, and transmits a radio signal including a fire signal. In response to this, the neighboring fire alarm 1 for the wireless house outputs an alarm and transmits a radio signal including a fire interlocking signal when an alarm stop timer to be described later is not set. The other wireless residential fire alarm device 1 that has received a wireless signal including such a fire interlocking signal outputs an interlocking alarm when an alarm stop timer to be described later is not set.

  In addition, when the alarm stop button 13C is operated on the fire alarm 1 for the wireless home that is the source of the fire while the entire system is outputting an alarm, the alarm of the alarm 1 is stopped and other alarm devices A reset signal is transmitted to 1, and all alarms of the system are stopped for a predetermined time. On the other hand, when the alarm stop button 13C is operated on the fire alarm 1 for the wireless house other than the fire source, the alarm of the alarm 1 is stopped and a reset signal is transmitted to the other alarms 1. The source alarm device 1 ignores the reset signal and continues the alarm output, and the alarm device 1 other than the fire source receives the reset signal and stops the alarm output for a predetermined time.

  That is, when each of the fire alarms 1 for a wireless house receives a reset signal from any of the fire alarms 1 for a wireless house, if the fire detection flag is set, the alarm output is continued as it is. On the other hand, when the fire detection flag is not set, the alarm output is stopped for a predetermined time. As a result, the alarm output is not stopped only at the source of the fire, and the alarm output other than the source of the fire is stopped, so that it is easy to identify the fire source.

When the alarm stop button 13C is operated, if the fire detection flag is set, the alarm detection button 13C is reset to stop the alarm and transmit a radio signal including a reset signal.
On the other hand, if the fire detection flag is not set, the alarm is stopped for a predetermined time and a reset signal is transmitted.
Here, the alarm stop timer does not output an alarm even if it receives a fire signal or a fire-linked signal for a predetermined time after receiving the reset signal or after the alarm stop button 13C is operated. Until the timer is reset, even if the fire-source wireless residential fire alarm 1 outputs an alarm again, the alarm is not interlocked.

The system block diagram which shows an example of a structure of the fire alarm system for wireless houses of this invention The block diagram which shows an example of the principal part structure of the fire alarm for wireless houses Flowchart for explaining system identification code registration mode of wireless alarm for home The figure for demonstrating roughly the system identification code registration mode of the fire alarm 1 for wireless houses The flowchart for demonstrating operation | movement of the normal mode of the fire alarm for wireless houses.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fire alarm for wireless houses 10 Control part 10G System identification code registration part 11 Wireless transmission / reception part 11A Reception part 11B Transmission part 12 Fire detection part 13B Operation mode setting switch 13E Registration switch 15 Storage part 18 Alarm output part

Claims (5)

Detection means for detecting fire factors such as smoke and heat;
Alarm means for outputting an alarm when the detection means detects a fire factor; and
A storage unit for storing a system identification code of the wireless system;
When the detection means detects a fire factor, a radio signal transmission unit that transmits a system identification code stored in the storage unit as a radio signal by including it in a fire signal
A radio signal receiver for receiving the radio signal;
When the received radio signal includes a system identification code stored in the storage unit and a fire signal, a control unit that operates the alarm unit to output an alarm is provided.
A wireless residential fire alarm, wherein the storage unit stores a serial number of a product in advance as the system identification code. In claim 1,
A fire alarm for a wireless house, wherein the storage unit stores the serial number of the product in a rewritable manner. In claim 1 or 2,
It has a commercial AC power supply,
The wireless alarm fire alarm is configured such that the radio signal receiver can receive the fire signal from the commercial AC power source. In claim 2 or 3,
A system identification code registration unit having a registration switch;
When the system identification code registration means receives a radio signal from another wireless house fire alarm in the system within a predetermined time after the registration switch is operated, the system identification code included in the radio signal A wireless fire alarm for homes that automatically overwrites the storage unit.   The fire alarm system for wireless houses comprised by combining the fire alarm device for wireless houses of any one of Claims 1-4.

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