JP2015130099A - Disaster prevention system, receiver, and sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disaster prevention system, a receiver, and a sensor that can improve disaster prevention property by linking control states among a plurality of sensors.SOLUTION: A disaster prevention system 1 includes a receiver 10 and a plurality of sensors 30. When receiving a status signal about a status of a part of the sensors, the receiver 10 transmits a control signal for controlling the part of the sensors, or transmits a control signal for controlling all or a part of the other sensors. When receiving the control signal from the receiver 10, each of the plurality of sensors 30 performs control based on the control signal.

Description

  The present invention relates to a disaster prevention system, a receiver, and a sensor.

  Conventionally, disaster prevention systems for monitoring the occurrence of abnormalities in a monitoring area have become widespread. For example, this disaster prevention system is configured by connecting a receiver and a plurality of sensors by wire or wirelessly, and when an abnormality in a monitoring area is detected by the sensor, an alarm output is output from the sensor. At the same time, a detection result is transmitted from the sensor to the receiver, and an alarm output or a message output is performed at the receiver (see, for example, Patent Document 1).

JP 2010-041545 A

  However, in the conventional disaster prevention system described above, only the receiver is controlled based on the detection result of the sensor, and any other sensor is controlled based on the detection result of the sensor. Since it was not done, the control state between a plurality of sensors could not be linked, and there was room for improvement from the viewpoint of disaster prevention. For example, when a receiver and a plurality of sensors are connected wirelessly and each of the plurality of sensors continuously transmits signals, there is a possibility that these signals cannot be correctly received by the receiver due to congestion. is there. In order to prevent such a situation, for example, it is conceivable to eliminate congestion by causing each sensor to transmit a signal intermittently at a predetermined communication interval. However, when a uniform communication interval is set for each sensor, the occurrence of an abnormality is compared in some sensors, for example, when the smoke concentration detected in some sensors is increased. Even if it is expected to be detected within a short period of time, in order to transmit a signal from the some of the sensors to the receiver, a uniform communication interval must be provided. There was a possibility that the notification of the occurrence of abnormality was delayed.

  The present invention has been made in view of the above, and it is possible to improve disaster prevention performance by linking the control states of a plurality of detectors. The purpose is to provide a vessel.

  In order to solve the above-described problems and achieve the object, the disaster prevention system according to claim 1 is a disaster prevention system including a receiver and a plurality of sensors, and the receiver includes the plurality of sensors. A receiver-side communication means that communicates with the receiver, and a state signal related to the state of some of the plurality of detectors is received via the receiver-side communication means, the received state Based on the signal, a control signal for controlling the part of the sensors, or a control signal for controlling all or some of the other sensors in the plurality of sensors, A receiver-side control means for transmitting via the communication means, each of the plurality of sensors comprising a sensor-side communication means for communicating with the receiver, and a detection means for detecting an abnormality in the monitoring area And a status signal relating to its own status to the sensor side communication means Sensor side control means for transmitting to the receiver via the sensor side, and when receiving a control signal from the receiver via the sensor side communication means, the sensor side for performing control based on the control signal Control means.

  The disaster prevention system according to claim 2 is the disaster prevention system according to claim 1, wherein the receiver-side communication means of the receiver performs wireless communication with the plurality of sensors. When the receiver-side control means receives a status signal indicating that the possibility of occurrence of an abnormality is improved in the some of the sensors, it controls a communication interval from the some of the sensors to the receiver. A control signal for controlling the communication interval to the receiver from all or a part of other sensors in the plurality of sensors, and the sensor side of the sensor The communication means performs wireless communication with the receiver, and the detector-side control means transmits a status signal related to its own state to the receiver at a predetermined communication interval, and receives a control signal from the receiver. If received, Changing the communication distance self based on the control signal.

  The disaster prevention system according to claim 3 is the disaster prevention system according to claim 2, wherein the receiver-side control means of the receiver indicates that the possibility of occurrence of an abnormality is improved in the some of the detectors. When a status signal is received, a control signal for controlling the communication interval with respect to the receiver to be shortened from the some sensors, and all or other of the plurality of sensors are transmitted. A control signal is transmitted from some sensors to control the communication interval with respect to the receiver to be long.

  5. The receiver according to claim 4, wherein a receiver-side communication means for communicating with a plurality of sensors, and a status signal relating to a state of a part of the plurality of sensors in the receiver-side communication. When received via the means, a control signal for controlling the part of the sensors based on the received status signal, or all or some of the other sensors in the plurality of sensors. Receiver-side control means for transmitting a control signal for controlling the receiver via the receiver-side communication means.

  According to a fifth aspect of the present invention, there is provided a sensor-side communication unit that communicates with a receiver, a detection unit that detects an abnormality in a monitoring area, and a status signal related to its own state via the sensor-side communication unit. Sensor-side control means for transmitting to the receiver, and when receiving a control signal from the receiver via the sensor-side communication means, sensor-side control for performing control based on the control signal Means.

  According to the disaster prevention system according to claim 1, based on the state of some of the plurality of sensors, the part of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

  According to the disaster prevention system according to claim 2, based on the state of some of the plurality of sensors, the communication interval of the some sensors and all or some of the other sensors Because the communication interval is controlled, the communication interval of multiple sensors can be adjusted, and the communication state between each sensor and the receiver can be optimized, so that disaster prevention can be improved. become.

  In the disaster prevention system according to claim 3, when it is detected that the possibility of occurrence of abnormality is improved in some of the plurality of sensors, the communication interval of the some sensors is set. By shortening it, it becomes possible to notify the receiver at an early stage when a fire is determined later in some of the sensors, and the communication interval of all or some of the other sensors can be reduced. Since the length is increased, it becomes possible to prevent congestion with a signal transmitted from a sensor that has detected an increase in the possibility of occurrence of an abnormality.

  According to the receiver of claim 4, based on the state of some of the plurality of sensors, the some of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

  According to the sensor of the fifth aspect, based on the state of some of the plurality of sensors, some of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

It is the schematic which shows the structure of the disaster prevention system which concerns on embodiment of this invention. It is a block diagram which shows the electrical structure of a receiver functionally conceptually. It is a figure which shows the structural example of sensor information. It is a figure which shows the structural example of control information. It is a block diagram which shows the electrical structure of a reception repeater functionally conceptually. It is a block diagram which shows the electrical structure of a sensor functionally conceptually. It is a flowchart of a state specific process. It is a flowchart of a control process.

  Hereinafter, embodiments of a disaster prevention system, a receiver, and a sensor according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments.

[Basic concept of the embodiment]
First, the basic concept of the embodiment will be described. Embodiments generally relate to disaster prevention systems, receivers, and detectors. This “disaster prevention system” is a system for monitoring whether or not an abnormality has occurred in a monitoring area, and includes at least one receiver and a plurality of sensors. The monitoring area setting target is arbitrary, and includes, for example, an apartment house, an office service, or a commercial facility. The “receiver” is a receiving unit that performs a predetermined process based on a plurality of sensors, and is installed in a management room, for example. The “sensor” is a sensing means that senses whether or not an abnormality has occurred in the monitoring area, and is installed in each of a plurality of monitoring sections set in the monitoring area. The specific type of the sensor is arbitrary, but corresponds to a fire sensor that detects smoke or heat, a gas leak sensor that detects gas, or a human sensor that detects a human body. In the present embodiment, description will be made assuming that the sensor is configured as a fire sensor that detects smoke.

  Communication between the receiver and each of the plurality of sensors can be performed by any method, for example, using short-range wireless communication or wired communication according to a known short-range wireless communication standard be able to. Examples of such short-range wireless standards include Zigbee (registered trademark) and ECHONET Lite (registered trademark). In this embodiment, wireless transmission can be performed bidirectionally between one or two frequency bands of the 426 MHz band and the 920 MHz band between the receiver and each of the plurality of sensors. .

  Further, communication between these receivers and each of the plurality of sensors may be performed directly, but other devices may be interposed. In this embodiment, in this embodiment, communication between the receiver and a plurality of sensors is indirectly performed via a “reception repeater”. In this case, communication between the receiver and the reception repeater and communication between the reception repeater and the sensor can be performed by an arbitrary method. In this embodiment, bidirectional wired communication is performed between the receiver and the reception repeater. In this embodiment, bidirectional wireless communication is performed between the reception repeater and the sensor. Specifically, signal transmission from the reception repeater to the sensor is performed in the 426 MHz band and the 920 MHz band. By performing either one and transmitting the signal from the sensor to the reception repeater using either one of the 426 MHz band and the 920 MHz band, it is possible to perform quick communication using two frequency bands.

[Specific contents of the embodiment]
Next, specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the disaster prevention system will be described. FIG. 1 is a schematic diagram illustrating a configuration of a disaster prevention system according to an embodiment. As shown in FIG. 1, the disaster prevention system 1 includes a receiver 10, a reception repeater 20, and a plurality of sensors 30. The receiver 10 and the reception repeater 20 are connected by the communication line 2, and each of the reception repeater 20 and the plurality of sensors 30 can communicate wirelessly.

(Configuration-Receiver)
First, the configuration of the receiver 10 will be described. FIG. 2 is a block diagram functionally conceptually showing the electrical configuration of the receiver 10. As illustrated in FIG. 2, the receiver 10 includes an input unit 11, an output unit 12, a communication unit 13, a storage unit 14, and a control unit 15.

(Configuration-Receiver-Input section)
The input unit 11 is an input unit that receives input of information necessary for the operation of the receiver 10, and includes, for example, a touch panel, a switch, and an external input terminal. The user of the receiver 10 switches, for example, the monitoring section whose monitoring state should be displayed on the output unit 12 through the touch panel or the switch, stops the alarm output, or sends these information from any external device. Input is possible via an external input terminal.

(Configuration-Receiver-Output section)
The output unit 12 is an output unit that outputs information necessary for the operation of the receiver 10, and includes, for example, a speaker, a display, an indicator lamp, and an external output terminal. For example, the user of the receiver 10 outputs an alarm output via a speaker, outputs a monitoring state of a monitoring section via a display or an indicator lamp, or outputs such information to an arbitrary external device. A message can be output via an external output terminal.

(Configuration-Receiver-Communication part)
The communication unit 13 is a receiver-side communication unit that performs communication with the reception repeater 20. For example, the communication unit 13 includes a connection terminal for wired connection of the reception repeater 20 to the receiver 10.

(Configuration-Receiver-Storage unit)
The storage unit 14 is a storage unit that stores programs and various data necessary for the operation of the receiver 10. The storage unit 14 is configured using, for example, a hard disk (not shown) as an external storage device, but instead of or together with the hard disk, a magnetic storage medium such as a magnetic disk, or a DVD or Blu-ray disk is used. Any other storage medium can be used including such an optical storage medium (this also applies to the storage units of other apparatuses and devices). The storage unit 14 stores a sensor information database (hereinafter referred to as “DB”) 14 a and a control information DB 14 b.

  The sensor information DB 14a is sensor information storage means for storing sensor information. The “sensor information” is information for specifying the sensor 30. As illustrated in FIG. 3, the item “sensor ID”, the item “reception relay ID”, and the item “installation position” are displayed. Information of each item is associated with each other. The information of the item “sensor ID” is sensor identification information for uniquely identifying the sensor 30 and is given by, for example, an arbitrary method before the sensor 30 is shipped. The information of the item “reception repeater ID” is reception repeater identification information for uniquely identifying the reception repeater 20, and is given by, for example, an arbitrary method before the reception repeater 20 is shipped. The information of the item “installation position” is sensor position specifying information for specifying the position where the sensor 30 is installed in the monitoring area. For example, the installation position = “F1-R1” indicates the installation of the sensor 30. The position is the first room (R1) on the first floor (F1). The sensor information is set in the sensor information DB 14a by the user of the receiver 10 after the installation positions of the sensor 30 and the reception repeater 20 are determined.

  The control information DB 14 b is a control information storage unit that stores control information of the sensor 30. The “control information” is information for specifying the control content of the sensor 30, and includes the item “detection state”, the item “installation position”, and the item “control content” as illustrated in FIG. These items of information are associated with each other. The information of the item “sensing state” is sensing state specifying information for specifying the sensing state of the sensor 30. This information is, for example, “increase in smoke concentration” where the smoke concentration increase rate is equal to or greater than a predetermined value but the smoke concentration is less than the predetermined abnormality determination threshold value, and the smoke concentration is not equal to the abnormality determination threshold value. It is usually detected because the rate of increase in smoke concentration is less than the specified value and the smoke concentration is less than the abnormality determination threshold due to the “fire determination” that has resulted in a fire determination because of It is one of “return” that has returned to the state. The item “installation position” is a case where the reference sensor 30 itself or another sensor 30 is controlled on the basis of the sensor 30 (hereinafter referred to as the reference sensor 30) that has communicated the detection state to the receiver 10. In addition, this information is information for specifying the sensor 30 to be controlled. In the present embodiment, the information is information for specifying the installation position with reference to the reference sensor 30. For example, the installation position = “reference sensor” indicates that the control object is the reference sensor 30 itself, and the installation position = “adjacent” indicates that the control object is installed at a position closest to the reference sensor 30. It indicates that the other sensor 30 is installed, and the installation position = “same relay range” indicates that all the other sensors 30 whose control objects are installed in the relay range of the same reception repeater 20 as the reference sensor 30 are indicated. It is shown that. The item “control content” specifies the control content when the specific sensor 30 or another sensor 30 is controlled on the basis of the specific sensor 30 that has communicated the sensing state to the receiver 10. This is control content specifying information. This information includes, for example, a communication interval (hereinafter simply referred to as “communication interval”) at the time of signal transmission from the sensor 30 to the reception repeater 20 as a predetermined default communication interval (hereinafter simply referred to as “reference communication interval”). The communication interval is shortened, the communication interval is longer than the reference communication interval, or the communication interval is returned to the reference communication interval. This control information is determined by the user of the receiver 10 and set in the control information DB 14b.

(Configuration-Receiver-Controller)
The control unit 15 is a control unit that controls the receiver 10. Specifically, the control unit 15 includes a CPU, various programs that are interpreted and executed on the CPU (including a basic control program such as an OS and an application program that is activated on the OS and realizes a specific function), and This is a computer configured with an internal memory such as a RAM for storing programs and various data (this is the same for the control units of other devices and devices). In particular, the receiver program according to the present embodiment is substantially installed in the receiver 10 via an arbitrary storage medium or network, thereby substantially configuring each unit of the control unit 15.

  The control unit 15 is configured with a receiver-side control unit 15a in terms of functional concept. When the receiver-side control unit 15a receives a status signal related to the status of some of the plurality of sensors 30 via the communication unit, the receiver-side control unit 15a A control signal for controlling some of the sensors 30 or a control signal for controlling all or some of the other sensors 30 in the plurality of sensors 30 is transmitted via the communication unit; It is a receiver side control means. Note that specific processing performed by the receiver-side control unit 15a will be described later.

(Configuration-receiving repeater)
Next, the configuration of the reception repeater 20 will be described. FIG. 5 is a block diagram functionally conceptually showing the electrical configuration of the reception repeater 20. As illustrated in FIG. 5, the reception repeater 20 includes a communication unit 21, a storage unit 22, and a control unit 23.

(Configuration-Reception repeater-Communication unit)
The communication unit 21 is a relay-side communication unit that performs communication with the receiver 10 and the sensor 30. For example, an input / output terminal for performing communication with the receiver 10 by wire, or the sensor 30 and the short-range wireless communication. An antenna for performing communication and a frequency conversion unit are provided.

(Configuration-Receiving repeater-Storage unit)
The storage unit 22 is a storage unit that stores a program and various data necessary for the operation of the reception repeater 20. The storage unit 22 stores the reception repeater ID of the reception repeater 20. The reception repeater ID is stored in the storage unit before the reception repeater 20 is shipped, for example.

(Configuration-Reception repeater-Control unit)
The control unit 23 is a control unit that controls the reception repeater 20. In particular, the reception repeater program according to the present embodiment is installed in the reception repeater 20 via an arbitrary storage medium or network, thereby substantially configuring each unit of the control unit 23.

(Configuration-sensor)
Next, the configuration of the sensor 30 will be described. FIG. 6 is a block diagram functionally conceptually showing the electrical configuration of the sensor 30. As shown in FIG. 6, the sensor 30 includes an abnormality detection unit 31, an output unit 32, a communication unit 33, a storage unit 34, and a control unit 35.

(Configuration-Sensor-Abnormality detection unit)
The abnormality detection unit 31 is an abnormality detection unit that detects an abnormality in the monitoring area in the dwelling unit in which the sensor 30 is installed. The specific configuration of the abnormality detection unit 31 is arbitrary. For example, when the sensor 30 is a fire sensor, it is a smoke sensor or a heat sensor, and when the sensor 30 is a gas leak sensor. Is a gas sensor or an infrared sensor when the sensor 30 is a human sensor. As described above, since the sensor 30 in the present embodiment is a fire sensor that detects smoke, the abnormality detection unit 31 is configured as a smoke sensor.

(Configuration-Sensor-Output unit)
The output unit 32 is an output unit that outputs information necessary for the operation of the sensor 30, and is an output unit that outputs an alarm when an abnormality is detected by the abnormality detection unit 31. Provide indicator lights.

(Configuration-Sensor-Communication part)
The communication unit 33 is a sensor-side communication unit that performs communication with the reception repeater 20, and includes, for example, an antenna and a frequency conversion unit for performing short-range wireless communication with the reception repeater 20.

(Configuration-Sensor-Memory)
The storage unit 34 is a storage unit (disaster prevention information storage unit) that stores a program and various data necessary for the operation of the sensor 30. The storage unit 34 stores the sensor ID of the sensor 30. For example, the sensor ID is stored in the storage unit before the sensor 30 is shipped.

(Configuration-Sensor-Control part)
The control unit 35 is a control unit that controls the sensor 30. In particular, the sensor program according to the present embodiment is installed in the sensor 30 via an arbitrary storage medium or network, thereby substantially configuring each unit of the control unit 35.

  The control unit 35 includes a sensor side control unit 35a in terms of functional concept. The sensor-side control unit 35a is a sensor-side control unit that transmits a state signal related to its own state to the receiver 10 via the communication unit, and has received a control signal from the receiver 10 via the communication unit. In this case, it is a sensor-side control unit that performs control based on the control signal. Specific processing performed by the sensor-side control unit 35a will be described later.

(processing)
Next, the process performed by the disaster prevention system 1 comprised in this way is demonstrated. This process is roughly divided into a state specifying process for specifying the state of the sensor 30 and a control process for controlling the sensor 30. Each of these processes is repeatedly executed by each of these devices after powering on the receiver 10, the reception repeater 20, and the sensor 30.

(Processing-State identification processing)
First, the state specifying process will be described. FIG. 7 is a flowchart of the state specifying process. In the following, “step” is abbreviated as “S”.

  First, the abnormality detection unit 31 of each sensor 30 detects an abnormality of the monitoring section in which the sensor 30 is installed at a predetermined abnormality detection cycle by a known method, and the sensor side control unit 35a of each sensor 30. Determines the abnormal state of the monitoring section based on the detection result (SA1). For example, the sensor-side control unit 35a determines the presence or absence of an abnormality in the monitoring region by comparing the detection result with a predetermined abnormality determination threshold value. If the detection result is less than the abnormality determination threshold value, the monitoring is performed. It is determined that there is no abnormality in the area (fire is not determined in the present embodiment), and when the detection result is equal to or greater than the abnormality determination threshold, it is determined that there is an abnormality in the monitoring area (fire is determined in the present embodiment). . In addition, when the sensor-side control unit 35a determines that there is an abnormality in the monitoring area, and the detection result is less than the abnormality determination threshold, the abnormality in the monitoring area is resolved (recovery in the present embodiment). Is determined.

  Then, the detector-side control unit 35a includes the detection result (in this embodiment, smoke concentration) and the determination result (in this embodiment, any of fire undetermined, fire determination, or restoration), and a storage unit A status signal including the sensor ID stored in 34 is generated, and the generated status signal is wirelessly transmitted to the reception repeater 20 via the communication unit 33 (SA2). This wireless transmission is performed at a predetermined communication interval in order to solve the problem of congestion of the state signals transmitted from the plurality of sensors 30. That is, the sensor-side control unit 35a monitors whether or not a communication interval (for example, 10 seconds) elapses after performing wireless transmission to the reception repeater 20. It is not performed until the time elapses, but is performed after the communication interval elapses (the same applies to the transmission from the sensor 30 below).

  The control unit 23 of the reception repeater 20 monitors the reception state of the state signal transmitted from the sensor 30, and when the state signal transmitted from the sensor 30 is received via the communication unit 21, After adding its own reception repeater ID to this status signal, this status signal is transmitted to the receiver 10 via the communication unit 21. At this time, in the sensor 30, the reception repeater ID of the reception repeater 20 that relays itself is registered in advance, and when the state signal is transmitted from the sensor 30, the reception repeater is added to the state signal. The reception repeater 20 including the ID may relay the state signal only when the received state signal includes its own reception repeater ID (from the receiver 10 to the sensor 30). The signal transmitted to the receiver repeater ID may be transmitted by the receiver 10 together with the receiver repeater ID, so that the necessity of relay in the receiver repeater 20 may be determined). Note that the processing of the reception repeater 20 is omitted in FIG.

  On the other hand, the receiver-side control unit 15a of the receiver 10 monitors the reception state of the state signal transmitted from the reception repeater 20, and transmits the state signal transmitted from the reception repeater 20 via the communication unit 13. If received (SA3, Yes), based on the detection result and determination result included in this state signal, the detection state of the monitoring section is specified (SA4). For example, when the determination result = fire is not determined or when the determination result = return, the detection result is analyzed to determine the possibility of occurrence of an abnormality in the monitoring section. For example, the receiver-side control unit 15a of the receiver 10 accumulates the status signal received from the reception repeater 20 in the storage unit, and based on the accumulated status signal and the newly received status signal. The smoke density increase rate in the monitored area is calculated, and when the smoke density increase rate is equal to or greater than a predetermined value, the detection state is specified as smoke density increase. If the determination result = fire determination, the detection state = fire determination is specified regardless of the detection result. Alternatively, as described above, when the determination result = fire is not determined, or when the determination result = return, the detection result is analyzed, and when the increase rate of the smoke concentration is determined to be less than the predetermined value. Specifies that the sensing state = return. This ends the state identification process.

(Processing-Control processing)
Next, the control process will be described. FIG. 8 is a flowchart of the control process. First, the receiver-side control unit 15a identifies the sensor 30 to be controlled and the control content of the sensor 30 based on the sensing state determined in SA4 of the state identifying process (SB1). For example, the receiver-side control unit 15a refers to the control information DB 14b based on the sensing state determined in SA4, and acquires the installation position and control content corresponding to this sensing state. Next, the receiver-side control unit 15a transmits the status signal by referring to the sensor information DB 14a based on the sensor ID and the reception relay ID included in the status signal received in SA3 of the status specifying process. The installation position of the detected sensor 30 (that is, the reference sensor 30) is specified. The receiver-side control unit 15a is a sensor 30 other than the reference sensor 30 based on the installation position of the identified reference sensor 30 and the installation position acquired from the control information DB 14b, The sensor ID of the sensor 30 to be included in is acquired. Then, the receiver-side controller 15a generates a control signal including the sensor ID of the reference sensor 30 and the control content for the reference sensor 30 acquired from the control information DB 14b, and communicates the generated control signal. It transmits via the part 13 (SB2). The receiver-side control unit 15a is a sensor 30 other than the reference sensor 30, and includes a sensor ID of the sensor 30 to be included in the control target and a reference sensor 30 other than the reference sensor 30 acquired from the control information DB 14b. A control signal including control contents for the sensor 30 is generated, and the generated control signal is transmitted via the communication unit 13 (also SB2).

  For example, when the sensing state = smoke density increase, “installation position = reference sensor” and “control content = communication interval shortened” are acquired from the control information DB 14b, and “installation position = adjacent” and “control” are acquired. Content = communication interval extension ”and“ installation position = same relay range ”and“ control content = communication interval extension ”are acquired. Then, the sensor ID of the reference sensor 30, the sensor ID of the adjacent sensor 30, and the sensor ID of the sensor 30 in the same relay range are acquired from the sensor information DB 14a. In this case, a specific method for acquiring the sensor ID is arbitrary. For example, the sensor ID of the reference sensor 30 is acquired as the sensor ID included in the status signal received at SA3. Further, regarding the sensor ID of the adjacent sensor 30, when there is a sensor 30 installed in the same room as the reference sensor 30, the sensor 30 is specified, and such a sensor 30 is identified. If not, the sensor 30 installed in the nearest room on the same floor as the reference sensor 30 (for example, at the installation position of the sensor information, the reference sensor 30 and F are the same and R is a serial number) After the devices 30) are specified, the sensor IDs of the specified sensors 30 are acquired from the sensor information DB 14a. For example, when the sensor ID of the reference sensor 30 is SID0001, the sensor ID = SID0002 is acquired as the sensor ID of the sensor 30 adjacent to the reference sensor 30 from the sensor information DB 14a. Alternatively, information for specifying the adjacent sensor 30 may be stored in advance in the sensor information and specified by referring to this information. In addition, regarding the sensor ID of the sensor 30 in the same relay range, the sensor 30 having the same reception relay ID is specified. For example, when the sensor ID of the reference sensor 30 is SID0001, the sensor ID = SID0003 is acquired from the sensor information DB 14a. Therefore, sensor ID = SID0001 and control content = control signal including communication interval shortening, sensor ID = SID0002 and control content = control signal including communication interval extension, and sensor ID = SID0003 and control content = communication interval A control signal including the extension is transmitted.

  The control unit of the reception repeater 20 monitors the reception state of the control signal transmitted from the receiver 10. When the control signal transmitted from the receiver 10 is received via the communication unit 21, A control signal is transmitted to the sensor 30 via the communication unit 21. Note that the processing of the reception repeater 20 is omitted in FIG.

  On the other hand, the detector-side control unit 35a of the sensor 30 monitors the reception state of the control signal transmitted from the reception repeater 20, and transmits the control signal transmitted from the reception repeater 20 via the communication unit 33. If received (SB3, Yes), it is determined whether or not the sensor ID included in the control signal matches the sensor ID stored in its own storage unit (SB4). (SB4, No), assuming that this control signal is not a control signal transmitted to itself, return to SB3, and if they match (SB4, Yes), control according to the control content included in this control signal is performed. (SB5). For example, when control content = communication interval shortening, the communication interval is shortened to a predetermined communication interval shorter than the reference communication interval (hereinafter, shortened communication interval; for example, 5 seconds), and control content = communication interval extension. In this case, the communication interval is extended to a predetermined communication interval longer than the reference communication interval (hereinafter referred to as an extended communication interval, for example, 20 seconds), and when the control content = communication interval return, the communication interval is set as the reference communication interval. Return to. This ends the control process.

  Similarly, it is possible to automatically control the reference sensor 30 and other sensors 30 based on the detection state of the sensor 30 by repeatedly performing such state specifying process and control process. . For example, according to the control information in FIG. 4, when the smoke density of the reference sensor 30 increases, there is a high possibility that a fire is determined by the reference sensor 30. By shortening, it becomes possible to notify the receiver 10 of the fire determination early, and for the adjacent sensor 30 and the sensor 30 in the same relay range, transmission from the reference sensor 30 by extending the communication interval. It is possible to prevent congestion with the status signal. When the fire is determined by the reference sensor 30, the reference sensor 30 has already determined the fire, and the communication signal indicating that has been transmitted to the receiver 10 at least once. Since it is not necessary to notify the receiver 10 earlier from the receiver, the reference sensor 30 itself can prevent congestion with the status signal transmitted from the other sensor 30 by extending the communication interval. Since the adjacent sensor 30 is most likely to detect a fire spread or the like, it is possible to notify the receiver 10 of the fire determination at an early stage by shortening the communication interval. Since the possibility of detecting a fire spread is the second highest for 30, it is possible to notify the receiver 10 of the fire determination early by returning the communication interval. Alternatively, when the reference sensor 30 is restored, the communication interval is restored because it is considered appropriate for any sensor 30 to perform normal monitoring.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention may be arbitrarily modified and improved within the scope of the technical idea of the present invention described in the claims. Can do. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above contents, and may vary depending on the implementation environment and details of the configuration of the invention. May be solved, or only some of the effects described above may be achieved. For example, even if the disaster prevention performance cannot be improved as compared with the conventional system, the disaster prevention performance equivalent to the conventional system can be achieved by the system of the present invention different from the conventional system. The problem has been solved.

(About distribution and integration)
Further, each of the electrical components described above is functionally conceptual and does not necessarily need to be physically configured as illustrated. In other words, the specific forms of distribution and integration of each unit are not limited to those shown in the drawings, and all or a part thereof may be functionally or physically distributed or integrated in arbitrary units according to various loads or usage conditions. Can be configured. For example, the receiver 10 and the reception repeater 20 are each configured to be distributed among a plurality of devices, the receiver 10 and the reception repeater 20 are mutually integrated, the sensor information DB 14a and the control information DB 14b of the receiver 10 May be distributed or integrated into a plurality of DBs, or a part of one function of the receiver 10 or the reception repeater 20 may be provided in the other. Further, in the case of distributing each part, the cooperation between these parts can be performed by one or both of wired and wireless.

(Interrelation between the embodiments)
In the case where a plurality of embodiments are described, between the plurality of embodiments, a part of the configuration or processing may be interchanged, or one configuration or processing may be applied to the other. May be.

(About shape, numerical value, structure, time series)
Regarding the constituent elements exemplified in the embodiment and the drawings, the shape, numerical value, or the structure of a plurality of constituent elements or the mutual relationship in time series may be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can do.

(About status signals and control signals)
The state signal related to the state of the sensor 30 includes, for example, a state signal indicating the state of the battery voltage when the sensor 30 is driven by a battery, May be a status signal indicating the result of automatically testing its own function. For example, when transmitting a state signal indicating the state of the battery voltage, when the battery voltage of the specific sensor 30 becomes less than a predetermined value, the receiver 10 detects the detection interval or communication of the specific sensor 30. While extending the interval reduces the power consumption and extends the detection life, it is possible to prevent the disaster prevention performance from decreasing by shortening the detection interval and communication interval of the adjacent sensors 30. Alternatively, when transmitting a status signal indicating the test result, the receiver 10 may stop the function of the specific sensor 30 when it is determined by a test that the specific sensor 30 has failed. While preventing false alarms, it may be possible to prevent the disaster prevention performance from being lowered by shortening the detection interval or communication interval between the adjacent sensors 30. Further, in the above-described embodiment, it has been described that, among the determinations of the state of the sensor 30, the determination of fire is performed by the sensor 30, and the determination of the increase in smoke concentration is performed by the receiver 10. The determination may be performed by either the sensor 30 or the receiver 10.

(About other devices)
Moreover, you may comprise the disaster prevention system 1 including apparatuses other than the apparatus demonstrated by the said embodiment. For example, a portable setting communication device (not shown) may be included. This setting communication device is for remotely setting the sensor 30 and is configured to be capable of short-range wireless two-way communication with the sensor 30. The sensor ID and an arbitrary setting content are set. A setting signal can be transmitted. The sensor 30 that has received the setting signal sets its own setting based on the setting content included in the setting signal when the sensor ID included in the setting signal matches the sensor ID of the sensor 30. Do. For example, the user transmits the setting contents of the sensor 30 and the abnormality detection history accumulated in the sensor 30 to the setting communication device, and receives the information by the setting communication device. The information received in this way is displayed on a display unit provided in the setting communication device. Alternatively, after the information received in this way is temporarily stored in the setting communication device, the setting communication device is connected to the computer or the like, and then transferred from the setting communication device to the computer or the like. For example, it may be accumulated or output. By including such a setting communication device in the disaster prevention system 1, for example, the control signal transmitted from the reception repeater 20 to the sensor 30 is also received by the setting communication device, and the control signal transmitted from the reception repeater 20 is transmitted. The contents of the signal may be displayed and confirmed on the setting communication device.

(Appendix)
In order to solve the above-described problem and achieve the object, the disaster prevention system according to appendix 1 is a disaster prevention system including a receiver and a plurality of sensors, and the receiver includes the plurality of sensors. When a status signal related to the status of some of the plurality of sensors is received via the receiver-side communication means, the received status signal A control signal for controlling the one or more sensors, or a control signal for controlling all or some of the other sensors in the plurality of sensors. Receiver-side control means for transmitting via the means, wherein each of the plurality of sensors comprises sensor-side communication means for communicating with the receiver, and detection means for detecting an abnormality in the monitoring area. , A status signal related to its own state, the sensor side communication means Sensor-side control means for transmitting to the receiver, and when a control signal is received from the receiver via the sensor-side communication means, the sensor side performs control based on the control signal Control means.

  The disaster prevention system according to appendix 2 is the disaster prevention system according to appendix 1, wherein the receiver-side communication means of the receiver performs wireless communication with the plurality of sensors, and the reception of the receiver The machine-side control means, when receiving a status signal indicating that the possibility of occurrence of an abnormality is improved in the some sensors, controls the communication interval from the some sensors to the receiver. Or a control signal for controlling a communication interval for the receiver from all or a part of other sensors in the plurality of sensors, and the sensor side communication means of the sensor Performs wireless communication with the receiver, and the detector-side control means transmits a status signal related to its own state to the receiver at a predetermined communication interval and receives a control signal from the receiver. In such cases Changing the communication distance self based on the signal.

  The disaster prevention system according to appendix 3, in the disaster prevention system according to appendix 2, the receiver-side control means of the receiver is a status signal indicating that the possibility of occurrence of abnormality has improved in the part of the detectors , The control signal for controlling the communication interval to the receiver to be shortened from the some of the sensors, and all or some of the other sensors in the plurality of sensors. A control signal for controlling the communication interval from the sensor to the receiver to be long is transmitted.

  The receiver according to appendix 4 includes: a receiver-side communication unit that communicates with a plurality of sensors; and a status signal related to a state of a part of the plurality of sensors in the receiver-side communication unit. A control signal for controlling the some sensors based on the received status signal, or all or some other sensors in the plurality of sensors. Receiver-side control means for transmitting a control signal for controlling the signal via the receiver-side communication means.

  The sensor according to appendix 5 includes a sensor-side communication unit that communicates with a receiver, a detection unit that detects an abnormality in a monitoring area, and a status signal related to its own state via the sensor-side communication unit. Sensor-side control means for transmitting to the receiver, and when receiving a control signal from the receiver via the sensor-side communication means, sensor-side control means for performing control based on the control signal With.

(Additional effects)
According to the disaster prevention system described in appendix 1, based on the state of some of the plurality of sensors, the some of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

  According to the disaster prevention system described in appendix 2, based on the state of some of the sensors, the communication interval of some of the sensors, and all or some of the other sensors Since the communication interval is controlled, the communication interval of a plurality of sensors can be adjusted, and the communication state between each sensor and the receiver can be optimized, so that disaster prevention can be improved. Become.

  The disaster prevention system described in Appendix 3 shortens the communication interval of some of the sensors when it is detected that the possibility of occurrence of an abnormality has been improved in some of the sensors. By doing so, it becomes possible to notify the receiver at an early stage when a fire is determined later in some of the sensors, and the communication interval of all or some of the other sensors is lengthened. Therefore, it is possible to prevent congestion with a signal transmitted from a sensor that has detected an increase in the possibility of occurrence of an abnormality.

  According to the receiver described in appendix 4, based on the state of some of the plurality of sensors, some of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

  According to the sensor according to appendix 5, based on the state of some of the plurality of sensors, some of the sensors and all or some of the other sensors are controlled. Therefore, it is possible to improve the disaster prevention property by linking the control states among the plurality of sensors.

DESCRIPTION OF SYMBOLS 1 Disaster prevention system 2 Communication line 10 Receiver 11 Input part 12 Output part 13 Communication part 14 Storage part 14a Sensor information DB
14b Control information DB
DESCRIPTION OF SYMBOLS 15 Control part 15a Receiver side control part 20 Reception repeater 21 Communication part 22 Storage part 23 Control part 30 Sensor 31 Abnormality detection part 32 Output part 33 Communication part 34 Storage part 35 Control part 35a Sensor side control part

Claims (5)

A disaster prevention system comprising a receiver and a plurality of sensors,
The receiver
Receiver-side communication means for communicating with the plurality of sensors;
When a status signal related to the status of some of the plurality of sensors is received via the receiver-side communication means, based on the received status signal, the some sensors are A receiver-side control for transmitting a control signal for controlling, or a control signal for controlling all or some of the other sensors in the plurality of sensors, via the receiver-side communication means; Means and
Each of the plurality of sensors is
Detector-side communication means for communicating with the receiver;
Detection means for detecting abnormalities in the monitoring area;
Sensor-side control means for transmitting a status signal related to its own state to the receiver via the sensor-side communication means, and receiving a control signal from the receiver via the sensor-side communication means Includes a sensor-side control unit that performs control based on the control signal.
Disaster prevention system. The receiver-side communication means of the receiver performs wireless communication with the plurality of sensors,
When the receiver-side control means of the receiver receives a status signal indicating that the possibility of occurrence of an abnormality is improved in the some of the sensors, the receiver controls the receiver from the some of the sensors. A control signal for controlling a communication interval, or a control signal for controlling a communication interval for the receiver from all or a part of other sensors in the plurality of sensors,
The sensor side communication means of the sensor performs wireless communication with the receiver,
The sensor-side control means transmits a status signal related to its own state to the receiver at a predetermined communication interval, and when receiving a control signal from the receiver, the sensor-side control unit determines its own communication interval based on the control signal. Change the
The disaster prevention system according to claim 1. When the receiver-side control means of the receiver receives a status signal indicating that the possibility of occurrence of an abnormality is improved in the some of the sensors, the receiver controls the receiver from the some of the sensors. To transmit a control signal for controlling the communication interval to be shortened, and to control the communication interval from the other or all of the plurality of sensors to the receiver to be increased. Send control signal,
The disaster prevention system according to claim 2. Receiver side communication means for communicating with a plurality of sensors;
When a status signal related to the status of some of the plurality of sensors is received via the receiver-side communication means, based on the received status signal, the some sensors are A receiver-side control for transmitting a control signal for controlling, or a control signal for controlling all or some of the other sensors in the plurality of sensors, via the receiver-side communication means; With means,
Receiving machine. Sensor side communication means for communicating with the receiver;
Detection means for detecting abnormalities in the monitoring area;
Sensor-side control means for transmitting a status signal related to its own state to the receiver via the sensor-side communication means, and receiving a control signal from the receiver via the sensor-side communication means Includes a sensor-side control unit that performs control based on the control signal.
sensor.

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