JP2010027083A - Wireless home fire alarm and wireless home fire alarm system - Google Patents

Abstract

A fire alarm for a wireless house that can easily identify a fire source, and a fire alarm system for a wireless house using the same are provided.
When each of the fire alarms for a wireless house 1 receives a reset signal from any of the fire alarms 1 for a wireless house, if a fire detection flag is set, the alarm output is output as it is. On the other hand, if 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.
[Selection] Figure 1

Description

  The present invention relates to a wireless residential fire alarm that detects a fire factor such as smoke and heat and outputs an alarm, and a wireless residential fire alarm system 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 a plurality of residential fire alarms installed in accordance with a monitoring area are connected to a two-wire signal line. And a plurality of them are connected in parallel.

  In this type of residential fire alarm system, one of the residential fire alarms is a main power alarm with a commercial power supply as the operating power source and power supply means for other residential fire alarms, and the remaining residential fires. The alarm device is configured as a child alarm device that receives power supply from the parent alarm device through a two-wire signal line.

  Either the parent alarm device or the child alarm device is configured to lower the voltage level generated in the two-wire signal line to the notification level when a fire factor is detected. Also, the voltage level of the two-wire signal line is monitored, and when it is detected that the voltage level of the two-wire signal line has dropped to the notification level, an alarm output is performed.

  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

  By the way, if each house fire alarm is made to transmit and receive radio signals, wiring is eliminated and the system can be further simplified.

  In such a case, any residential fire alarm detects a fire factor and outputs an alarm, and a residential fire alarm that does not detect a fire factor also detects a fire factor. It is desirable that all residential fire alarms perform alarm output in conjunction with receiving radio signals transmitted from the alarm and outputting alarms.

  However, if all residential fire alarms are linked and output alarms as described above, it will be difficult to determine which fire alarm is the source of the fire, that is, to identify the fire source. End up.

  The present invention is proposed in consideration of such circumstances, and provides a fire alarm for a wireless house that can easily identify a fire source, and a fire alarm system for a wireless house using the same. With the goal.

  In order to achieve the above object, the invention according to claim 1 is 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 the detection Radio signal transmission means for transmitting a radio signal including a fire signal when the means detects a fire factor, and radio signal reception for receiving a radio signal including a fire signal transmitted from another wireless residential fire alarm And a warning stop button for stopping the alarm output in a fire alarm for a residential house comprising a control means for operating the alarm means and outputting an alarm when the radio signal receiving means receives the radio signal. The control means performs a process of stopping the alarm output in response to the operation of the alarm stop button, and when the detection means detects a fire factor and becomes a fire occurrence source, When the alarm stop button is operated, the alarm output is stopped, the alarm output of all other wireless residential fire alarms is stopped for a predetermined time, and the wireless signal from the other wireless residential fire alarm is When the alarm signal is output by the alarm means by receiving the radio signal receiving means and other than the fire occurrence source, when the alarm stop button is operated, the alarm output is stopped and the fire occurrence source is stopped. All the alarm outputs other than the fire alarm for the wireless house are stopped for a predetermined time.

  The invention of claim 2 is characterized in that in the invention of claim 1, the alarm output of the other fire alarm for wireless houses is stopped for a predetermined time by transmitting a signal.

  A third aspect of the invention is a wireless residential fire alarm system configured by combining a plurality of wireless residential fire alarms according to the second aspect, wherein when the entire system outputs an alarm, a fire source When the alarm stop button is operated on a wireless residential fire alarm, the alarm output of the wireless residential fire alarm is stopped, and the above signal is sent to other wireless residential fire alarms. When the alarm output is stopped for a predetermined time and the alarm stop button is operated on a fire alarm for wireless houses other than the source of the fire, the alarm output of the fire alarm for the wireless house is stopped and other wireless houses The above signal is sent to the fire alarm for the fire, but the fire alarm for the wireless home that is the source of the fire ignores the signal and continues to output the alarm. The wireless residential fire alarm non wherein the alarm output receives the signal is intended to be stopped for a predetermined time.

  According to the present invention, when the alarm stop button of the fire alarm for a wireless house other than the source of the fire is operated, all the fire alarms for the wireless house other than the fire alarm for the wireless house that is the source of the fire output an alarm. Is stopped for a predetermined time, so that it is easy to identify the fire source.

It is a system configuration figure showing an example of the composition of the fire alarm system for wireless houses of the present invention. It is a block diagram which shows an example of the principal part structure of the fire alarm for wireless houses. It is a flowchart for demonstrating an example of the radio signal reception process of the fire alarm for wireless houses. It is a time chart for demonstrating the relationship between the radio | wireless transmission of a receiving part, and the radio | wireless reception of a transmission part. It is a flowchart which shows an example of the interlocking alarm process of the fire alarm for wireless houses.

  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 transmits a radio signal including a fire signal to the other fire alarm 1 for a house. . Further, when a wireless signal including a fire signal is received from another residential fire alarm device 1, an alarm is output from itself.

  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.

  The residential fire alarm 1 includes a control unit 10, a wireless transmission / reception unit 11, a fire detection unit 12, an operation unit 13, a display unit 14, a storage unit 15, a power supply unit 16, an antenna unit 17, and an alarm unit that constitute a control unit. And an alarm output unit 18 configured to output an alarm using an audio signal generated by the audio synthesizing unit 19.

  The control part 10 is comprised by CPU etc., and is provided in order to control this fire alarm 1 for houses. The wireless unit control means 10A controls transmission and reception processing of the wireless transmission / reception unit 11.

  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 and a test mode for performing internal tests by operating the operation mode setting switch 13B. When the fire determination unit 10B determines that a fire has occurred, the ringing control unit 10D operates the voice synthesizer 19 to generate a predetermined voice message and output it from the alarm output unit 18.

  The ID collating means 10E collates with the ID code included in the radio signal received from the other residential fire alarm 1, and informs the control unit 10 of the collation result. Upon receiving this, the control unit 10 determines the delay time from the reception of the wireless signal including the fire signal to the output of the wireless signal including the fire interlock signal in the interlock alarm processing described later. Processing such as outputting a radio signal including a signal is performed.

  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.

  The receiving unit 11A constitutes a radio signal receiving unit, and a pause time and a radio signal reception time are specified in advance. Based on time measurement by each of the pause timer and the reception timer, the pause time and the radio signal reception time Are sequentially repeated, and at the radio signal reception time, a radio signal from another residential fire alarm 1 is received and received.

  Here, the pause time is a time when the power supply from the power supply unit 16 to the reception unit 11A is cut off and no radio signal is received, and the radio signal reception time is a power supply unit 16 to the radio unit 11A. This is the time when the wireless signal is received after starting the power supply from.

  When the fire determination unit 10B determines that a fire has occurred, the transmission unit 11B transmits a radio signal composed of a carrier signal and a data unit as described later for a transmission time longer than the pause time. To do. In addition, in order to improve the reliability of the system, the wireless transmission in such a mode may be repeated a plurality of times.

  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 a channel setting switch 13A that sets a frequency band of a radio signal handled by the wireless residential fire alarm 1 is used to switch the operation mode to either the normal mode or the test mode. An operation mode setting switch 13B to be operated and an alarm stop button 13C to be operated to stop the alarm output are provided.

  Upon receiving these switch operations, the control unit 11 performs processing for setting the frequency band, setting the operation mode, and stopping the alarm output.

  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.

  The storage unit 15 includes an ID storage unit 15A and stores, for example, a system ID. The control unit 10 validates the reception of the radio signal from the residential fire alarm device 1 with the matching system ID, but invalidates the reception when they do not match.

  The power supply unit 16 is composed of, for example, a lithium battery 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.

  FIG. 3 is a flowchart for explaining an example of radio signal reception processing of the fire alarm 1 for a wireless house (100 to 111).

  The reception unit 11 </ b> A alternately receives a radio signal reception time and a pause time longer than this, and receives a radio signal from another residential fire alarm device 1. When switching to the radio signal reception time, the pause timer “TM01” is reset to end the measurement of the pause time, while the reception timer “TM02” is set to start measurement of the radio signal reception time.

  When a wireless signal from another residential fire alarm 1 is received during the wireless signal reception time, if the synchronization signal is included in the wireless signal, a synchronization flag is set, and the data included in the wireless signal Receive part. When reception of the data portion is completed, in order to switch from the radio signal reception time to the pause time, the pause timer “TM01” is set to start measurement of the pause time, while the reception timer “TM02” is reset to receive the radio signal End time measurement. When detecting that the pause time has elapsed, the receiving unit 11A switches to the wireless signal reception time.

  When reception of the data part is completed, alarm output is performed according to a command defined in the data part only when the transmission source and the system ID match, and reception of the radio signal is invalidated when they do not match.

  FIG. 4 is a time chart for explaining the relationship between the wireless reception of the reception unit 11A and the wireless transmission of the transmission unit 11B.

  As described above, the reception unit 11A repeats the pause time T1 and the radio signal reception time T2. When the fire determination unit 10B determines that a fire has occurred, the transmission unit 11B outputs a radio signal including a carrier signal and a data unit including the fire signal. As shown in the figure, the radio signal is transmitted for a time longer than the pause time T1. Note that such wireless signal transmission may be performed a plurality of times.

  11 A of reception parts will start the reception, if the radio signal from other fire alarms 1 for houses is received during radio signal reception time T2, and it is checked that a carrier signal is contained in the received radio signal. It detects and starts the data reception process synchronized with the transmission process of the residential fire alarm device 1. When the data reception process is completed, the pause time T1 and the radio signal reception time T2 are repeated again.

  For example, if the reception unit 11A is provided with a radio signal reception time of 10 ms for every 500 ms of rest time, and the power source unit 16 using two lithium batteries capable of supplying 2400 mA of power per unit is configured, Has battery life.

  FIG. 5: is a flowchart which shows an example of the interlocking alarm process of the fire alarm for wireless houses (200-227).

  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. Receiving this, the neighboring wireless 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 wireless residential fire alarm 1 receives a reset signal from any of the wireless residential fire alarms 1, 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.

DESCRIPTION OF SYMBOLS 1 Fire alarm for wireless houses 10 Control part 10B Fire judgment means 11 Wireless transmission / reception part 11A Reception part 11B Transmission part 18 Alarm output part

Claims (3)

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 wireless including a fire signal when the detection means detects the fire factor A wireless signal transmitting means for transmitting a signal; a wireless signal receiving means for receiving a wireless signal including a fire signal transmitted from another wireless residential fire alarm; and the wireless signal receiving means receives the wireless signal. In a fire alarm for a wireless house provided with a control means that sometimes activates the alarm means and outputs an alarm,
An alarm stop button for stopping the alarm output is provided, and the control means performs a process of stopping the alarm output in response to an operation of the alarm stop button,
When the detection means detects a fire factor and becomes a fire source, when the alarm stop button is operated, the alarm output is stopped and the alarm output of all other wireless residential fire alarms Is stopped for a predetermined time,
When the radio signal receiving means receives the radio signal from another wireless fire alarm for the house and the alarm means outputs an alarm and the alarm is not a fire source, the alarm stop button is operated. In addition, the alarm output is stopped, and all alarm outputs other than the fire alarm for the wireless house that is the source of the fire are stopped for a predetermined time.   2. The wireless residential fire alarm device according to claim 1, wherein the alarm output of the other wireless residential fire alarm device is stopped for a predetermined time by transmitting a signal. A wireless residential fire alarm system configured by combining a plurality of wireless residential fire alarms according to claim 2,
When the alarm stop button is operated on the fire alarm of the wireless home where the fire occurred while the entire system is outputting an alarm, the alarm output of the fire alarm of the wireless house is stopped and other wireless The signal is sent to the residential fire alarm and all alarm outputs of the system are stopped for a predetermined time,
When the alarm stop button is operated on a fire alarm for a wireless house other than the source of the fire, the alarm output of that wireless house fire alarm is stopped and the signal is sent to the other fire alarms for wireless houses However, in the fire alarm for the wireless home where the fire occurred, the signal is ignored and the alarm output continues, and in the fire alarm for the wireless house other than the source of the fire, the alarm output is stopped for a predetermined time in response to the signal A fire alarm system for wireless houses, characterized by

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