KR101022731B1 - Remote fire sensing system and method thereof - Google Patents

Abstract

The present invention relates to a remote fire monitoring system and a remote fire monitoring method. Particularly, a fire detector equipped with various sensors is composed of a large-scale sensor network, and u-City is implemented to realize comprehensive control by unifying wide area fire monitoring and fire suppression. The present invention relates to a remote fire monitoring system.

The fire monitoring system of the present invention includes a tag transmitter and a first wired communication unit for performing wireless communication, and a plurality of flame detectors for detecting a fire by detecting a flame with a flame sensor and a reader unit for wireless communication with a flame detector. And a second wire communication unit configured to perform wired communication with the flame detector, wherein the flame detector controls a wired or wireless communication with the flame detector, an alarm device that generates a warning light or a warning sound when receiving a control signal from the flame detector and at least one. It may include a management server for receiving the fire monitoring-related data from the flame detector control device, to check and control the status information of the flame detector control device and to perform a fire monitoring function.

According to the fire monitoring system and the fire monitoring method according to the present invention, even if there is a failure in any one communication mode by automatically switching to another communication mode to ensure the communication stability, when the wireless communication between the high density concentrated flame detectors It is effective in preventing collisions, reducing power consumption, and strengthening security through authentication.

Fire Monitoring, Monitoring Angle, Sensor Network, Self Diagnosis, Collision Prevention

Description

Remote fire monitoring system and fire monitoring method using a flame detector {ＲＥＭＯＴＥ ＦＩＲＥ SＥＮＩＩＧ SBSＴＥＭ ＡＮＤ MＥＴＨＯＤ

The present invention relates to a remote fire monitoring system and a remote fire monitoring method. Particularly, a fire detector equipped with various sensors is composed of a large-scale sensor network, and u-City is implemented to realize comprehensive control by unifying wide area fire monitoring and fire suppression. The present invention relates to a remote fire monitoring system.

A fire detection device is a device that notifies the outside that a fire has occurred by detecting a specific wavelength of heat, smoke, and flame generated during a fire. Fire detectors are classified into heat detectors, smoke detectors and flame detectors according to the detection target. Among them, the flame detector is a fire detector that detects ultraviolet rays or infrared rays emitted from a flame generated by a fire.

1 is a perspective view for explaining a general flame detector.

Referring to Figure 1, in general, the flame detector is a flame sensor (not shown) provided on the inside of the flame detection window 11 formed on the front of the cover detects the ultraviolet or infrared rays emitted from the flame, the display window 13a Displays power status monitoring, communication status monitoring, inspection result and fire detection by using light emitting diode (LED) (not shown) provided inside of 13b, 13c). Through 15, it is possible to receive a remote control signal from an external device.

On the other hand, the flame detector 10 is installed using the bracket 20 that can be adjusted in the left and right and up and down directions. The flame sensor (not shown) provided inside the flame detection window 11 detects a flame within a range of about 90 to 100 ° and about 50 m. Due to this characteristic, the flame detector 10 is mainly a vertex or boundary of a ceiling. Installed at the vertex of the area.

Here, the boundary zone is an arbitrarily determined zone in which the flame detector 10 can effectively detect whether a fire object is fired or not. On the other hand, since the direction of the flame sensor (not shown) to the front is the direction that the reference to the flame detector 10 is installed, the installation direction of the flame sensor 10 below the flame sensor (not shown) in front It is assumed to be the same as the viewing direction.

2 is a perspective view schematically showing a state where a flame detector is installed, and FIG. 3 is a plan view schematically showing a state where a plurality of flame detectors are installed.

As shown in FIG. 2, the flame detector 10 is installed at the vertex of the ceiling or at the vertex of the boundary area 70, and the installation direction 40 of the flame detector 10 is located at the vertex of the flame detector 10. Face the opposite corner bottom. Here, the sensing angle 50 may have a sensing range 60 that detects all of the boundary region 70 set as a rectangular parallelepiped because the sensing angle 50 is 45 to 50 ° around the installation direction 40.

Meanwhile, the flame detector 10 may extend the boundary area 70 of FIG. 2 to detect a wide area as shown in FIG. 3.

4 is a plan view showing a state in which the flame detector is installed in the wrong direction, Figure 5 is a side view showing a state in which the flame detector is installed in the wrong direction, reference numeral 80 of FIGS. 4 and 5 is the flame detector 10 is a flame It is a rectangular area in the boundary area 70 that does not detect.

4 and 5, when the flame detector 10 is installed in the wrong direction, a blind spot 80 may not be detected.

According to the conventional flame detector, since the function of informing the user of the installed direction is not provided, the user has no choice but to determine the installation direction of the flame detector. Therefore, when the flame detector is installed in the wrong direction, there is a problem that the utility of the flame detector is reduced because a blind area is generated in the boundary area where the flame is not detected.

In addition, since the user determines the installation direction of the flame detector by an estimate, there is a problem that there is no way to know the flame detector in the wrong direction where the blind area is generated. There is a problem that it is practically impossible to correct the angles individually, and the inefficiency in terms of cost and manpower consumption.

In addition, according to the conventional fire monitoring system, when using only a wired communication method to implement a large-scale monitoring system, there is a problem in the line installation, management and maintenance, there is an unsuitable problem.

On the other hand, in the case of using only the wireless communication method is a number of sensors are concentrated there is a problem of signal interference, collision. In addition, the probability of duplicated communication is increased and unnecessary power consumption increases, such as when multiple readers receive and respond to signals transmitted by a sensor, and a single reader cannot manage sensors independently so that systematic communication can be achieved. There is no problem. In addition, when the sensor is operated using an unauthorized reader, a problem may occur in the operation security of the fire surveillance system.

In addition, if the wireless or wired communication is impossible or excessive time is required to recover the communication incapable state, there is a problem in that the fire monitoring system may not be able to operate normally, and thus it may not be able to cope quickly when a fire occurs.

The present invention has been made to solve the above-mentioned problems, and displays the installation direction of the flame detector with a laser, and informs the management server of the distance measurement result to the point where the laser is displayed and whether the slope of the flame detector is fluctuated and set a preset distance. It is an object of the present invention to provide a fire monitoring system and method for automatically adjusting the angle of the bracket by using a value and a slope value.

In addition, the communication method between the flame detector control device and the flame detector or the flame detector control device and the alarm device is dualized by wire and wireless, and when there is a failure in one communication, the communication is automatically switched to the other communication mode to improve the stability of the communication. The purpose is to facilitate system maintenance by reporting the communication failure status to the management server.

In addition, there is another purpose of minimizing wireless communication collision, minimizing power consumption due to communication, and strengthening security through mutual authentication on a large sensor network.

A fire monitoring system of the present invention for achieving the above object comprises a tag transmitter and a first wired communication unit for performing a wireless communication, a plurality of flame detectors to detect the flame by detecting the flame with a flame sensor; A flame detector control device including a reader unit for wireless communication with the flame detector and a second wired communication unit for wired communication with the flame detector, the flame detector communicating with the flame detector in a wired or wireless manner; An alarm device for generating a warning light or a warning sound when receiving a control signal from the flame detector control device; And a management server for receiving fire monitoring-related data from at least one flame detector control device, checking and controlling status information of the flame detector control device, and performing a fire monitoring function.

Preferably, the central management server for receiving the fire monitoring-related data from the one or more management server, integrated management of the management server, and transmits the fire-related information to the appropriate fire recovery agency in the event of a fire; .

In the above-described configuration, the flame detector control device communicates by switching to wireless communication when a specific flame detector and a wire communication has a failure, and by switching to a wire communication when a failure occurs in the wireless communication or communicating communication failure status information. It can be configured to send to the management server or central management server.

In addition, in the above-described configuration, the management server or the central management server periodically instructs a specific flame detector or all flame detectors to perform the self-diagnostic function, the flame detector is a result of the self-diagnostic function for the flame sensor and the internal circuit It may be configured to transmit the management server or the central management server through a flame detector control device.

In addition, in the above configuration, the alarm device further comprises a tag transmitter for performing wireless communication with the flame detector control device and a third wire communication unit for performing wired communication with the flame detector control device, the flame detector control device The apparatus may further include a fourth wired communication unit configured to perform wired communication with the alarm device, and the reader unit may perform wireless communication with a tag transmitter included in the alarm device.

In addition, in the above-described configuration, the flame detector control device communicates by switching to wireless communication when a failure occurs in a specific alarm device and wired communication, and communicates by switching to wired communication when a failure occurs in the wireless communication, communication failure status information It can be configured to transmit to the management server or the central management server.

Preferably, the wired communication method may be implemented by the CAN communication method and the wireless communication method may be implemented by the Zigbee communication method.

In addition, in the above-described configuration, the flame detector is a laser light emitting unit for emitting a laser; A laser light receiver for detecting a laser beam emitted from the laser light emitter and reflected by an external structure; The first wired communication unit for receiving the distance measurement command from the flame detection control device and transmitting the distance value measured by the distance measurement command to the flame detection control device and the laser reflected from the time when the laser is emitted from the laser light emitting unit. Calculates the distance between the flame detector and the point indicated by the laser by the time elapsed until the laser receiver is detected, and according to a command input through the first wired communication unit, the laser light emitting unit and the first wired communication unit It may include a control unit for controlling.

In addition, in the above-described configuration, the flame detector may further include a tilt sensor for detecting a tilt variation, wherein the first wired communication unit may further transmit the tilt value detected by the tilt sensor to the flame detector control device.

In addition, in the above-described configuration, the control unit periodically transmits the inclination value to the flame detector control device according to a time interval preset by the user, or it is confirmed that the measured inclination value is out of the allowable angle preset by the user. And sending the tilt value to the flame detector control device, and transmitting the tilt value to the flame detector control device when the flame detector receives a tilt value request command from the flame detector control device. It can also be configured.

In addition, in the above-described configuration, the flame detector further stores a preset inclination value and a distance value in a tag transmitter memory or storage unit, and the measured inclination value and the distance value are respectively set to the preset inclination value and the distance value. If the comparison does not match, it can be configured to automatically adjust the vertical and horizontal angles of the flame detector bracket.

In the above-described configuration, when using a wireless communication method, the flame detector control device transmits a radio signal to the flame detector by including its own number information in a specific section of the data frame, and the flame detector transmits the radio signal. After receiving, the identification number may be extracted and checked, and compared with specific identification number information stored in a tag transmitter to transmit data only when the identification number is matched.

In addition, in the above-described configuration, the flame detector transmits its ID to the flame detector control device, the flame detector control device receives the data including the ID of the flame detector, and then confirms the ID of the flame detector to determine the flame The data transmitted by the flame detector may be transmitted to the management server or the central management server only when the flame detector ID matches the ID of the flame detector belonging to the management area of the detector control device.

Also, in the above-described configuration, the flame detector control unit transmits a beacon signal, the flame detector receives the beacon signal and synchronizes with the flame detector control unit that matches the unique number information, and the synchronized flame detector control unit The data may be configured to be transmitted to the flame detector control device only during the allocation-only transmission period.

Fire monitoring method of the present invention for achieving the above object,

 In the fire monitoring method using a fire monitoring system comprising a flame detector having a tag transmitter, a flame detector control device having a reader and a management server,

When detecting a fire that has caused a flame detector, encoding ID information and fire monitoring information of the flame detector stored in a tag transmitter memory and transmitting the encoded flame detection information to a fire detector control apparatus through wireless communication; The flame detector control device decodes the radio signal received from the flame detector and extracts ID information of the flame detector, and determining whether the ID information corresponds to the ID of the flame detector belonging to the management area of the flame detector control device ; And transmitting the fire monitoring information received to the management server or the central management server only when the ID information belongs to its own management area.

Further, preferably, in the fire monitoring method using a fire monitoring system including a flame detector having a tag transmitter, a flame detector control device having a reader and a management server, the flame detector control device has its own number information Encoding with a control command to be transmitted and transmitting it through wireless communication; The flame detector or alarm device decodes the radio signal received from the flame detector control device and extracts the unique number information of the flame detector control device, wherein the unique number information is stored in the tag transmitter memory or storage unit of the flame detector or alarm device. Determining whether or not it matches the unique number information of the flame detector stored in the specific region; And performing the received control command only when the received unique number information and the unique number information stored in the tag transmitter memory or the storage unit coincide with each other.

Further, preferably, in the fire monitoring method using a fire monitoring system including a flame detector having a tag transmitter, a flame detector control device having a reader, and a management server, the flame detector or flame detector control device is a wireless communication. Transmitting a signal through; When the flame detector, the alarm device or the flame detector control device receives the signal through wireless communication, transmitting an acknowledgment signal (ACK signal) wirelessly or by wire; Determining, by the flame detector or flame detector control device, a wireless communication failure when the signal does not receive the acknowledgment signal (ACK signal) so that a predetermined time elapses after the signal is transmitted through wireless communication; Changing the communication mode to a wired communication mode when the flame detector or the flame detector control device determines that the radio communication failure has occurred; Changing the communication mode to a wireless communication mode when the flame detector or the flame detector control device determines that a wire communication error is detected even when transmitting a signal through wire communication; And transmitting the flame detection control device to the management server or the central management server.

Further, preferably, in a fire monitoring method using a fire monitoring system including a flame detector having a tag transmitter, a flame detector control device having a reader, and a management server, the management server or the central management server may be a flame detector control device. Instructing each flame detector to perform self-diagnosis; When the flame detector receives the self-diagnosis command from the flame detector control device, the self-diagnosis module checks whether the detection sensor and the internal circuit are normally operated and measures the tilt value and the distance value; And the flame detector automatically adjusts the inclination value and the distance value with a preset inclination value and the distance value to match the preset value, and transmits the self-diagnosis result to the management server or the central management server. It can be made, including.

According to the fire monitoring system and method of the present invention, by providing information on the direction of installation of the flame detector to the management server to detect the detection square area generated when the installation angle of the flame detector changes due to external force such as the flame detector's erosion or impact You can calibrate automatically.

In addition, due to the duplication of the communication method can ensure the stability of the communication, if only the necessary lines to communicate by wire communication and the rest is configured to communicate by wireless communication has the advantage of easy line installation and maintenance.

In addition, in wireless communication between the flame detector control device and the flame detector or alarm device, by adopting the mutual authentication method, it is possible to set the management area managed by the flame detector control device and to reduce power consumption and prevent collisions. It has the effect of strengthening security.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the fire monitoring system and fire monitoring method of the present invention.

6 is a configuration diagram illustrating a fire monitoring system according to an embodiment of the present invention.

As shown in FIG. Fire monitoring system according to an embodiment of the present invention is a plurality of flame detectors 100, the flame detector control device 200, the flame detector control device 200, the wire detector or wired or wireless communication with the flame detector 100 is wired or wireless There is an alarm device 300 to control, the management server 400 and the central management server 500 for comprehensively managing a plurality of management server 400 and the like. Here, the communication between the central management server 500 and the management server 400 may use a commercial network or a dedicated network, and it is preferable to configure the Internet network. Communication between the management server 400 and the flame detector control device 200 is also preferably configured as a wired communication network and can be configured in an appropriate manner according to the distance and facility structure. Next, the communication between the flame detector control device 200 and the flame detector 100 or the flame detector control device 200 and the alarm device 300 may be configured to use a wired or wireless network, both wired and wireless. The network can be configured to be redundant. The wired network can be configured by RS-232 / 485 or CAN communication, and the wireless network is preferable to use Zigbee communication standard in terms of power saving.

CAN communication is a serial bus network for microcontrollers that connects peripherals such as sensors and starters in real-time control applications. Messages can be simultaneously distributed to all nodes in the network using a unique identifier on that network. Lose. Individual nodes decide whether or not to process the message based on this identifier. The bus access order also prioritizes messages according to the competition principle. Whereas when a collision is detected, the transmission is interrupted by Ethernet, but using a CAN-like approach allows for uninterrupted data transmission. Each node has a host processor, CAN controller, and transceiver. The bitrate can be up to 1Mbit / s and falls below 40m.

The first wired communication unit 117 of the flame detector 100 is wired in communication with the second wired communication unit 205 of the flame detector control device 200, and the third wired communication unit 303 of the alarm device 300 is a flame detector. The wired communication with the fourth wired communication unit 207 of the control device 200, the fifth wired communication unit 209 of the flame detector control device 200 performs wired communication with the management server 400.

7 is a block diagram illustrating a flame detector according to an embodiment of the present invention.

As shown in FIG. 7, the flame detector 100 according to the embodiment of the present invention includes a flame sensor 101, a flame sensor inspection lamp 103, a laser light emitting unit 105, a laser light receiving unit 107, and a tag. The transmitter 109, the display unit 113, the first wired communication unit 117, the microcomputer 119, and the self-diagnosis module 121 may be formed. More preferably, the flame detector 100 may further include a separate storage 115.

Here, the flame sensor 101 may be composed of one or more sensors for detecting the flame generated during the fire, in particular ultraviolet rays or infrared rays emitted from the flame, the flame sensor check lamp 103 determines whether the flame sensor 101 is operating. It may be made of one or more lamps that emit ultraviolet or infrared light detectable by the flame sensor 101 to check.

Meanwhile, the laser light emitting unit 105 emits a laser to display the installation direction of the flame detector 100 on the external structure, and the laser light receiving unit 107 is reflected by the external structure after being emitted from the laser light emitting unit 105. Detect the laser. Here, the technique of firing the laser and the technique of detecting the laser reflected by the external structure are already known, and thus, further description thereof will be omitted.

The tag transmitter 109 is a module for wireless communication with the reader unit 201 of the flame detector control device 200. The configuration of the preferred communication protocol may adopt the Zigbee communication protocol standard. In addition, it is possible to adopt the RFID communication method to support the Auto ID function. The tag transmitter 109 includes a tag memory, and the tag memory may be divided into an area in which a user can arbitrarily read / write, a TID area, and an area in which a communication identifier (ID), which is an identifier of a fire detector, is stored. In the region where the user can read / write arbitrarily, the unique number information of the specific fire detector control apparatus 200, the distance value measured by the laser, the tilt value measured by the tilt sensor, and the state information of the fire detector may be stored. The information may be configured to be stored in a separate storage unit 115.

The display unit 113 may be formed of a plurality of light emitting diodes, and the light emitting diodes are turned on to control the power state of the flame detector 100, the communication state, the flame sensor 101 inspection result, the fire sensor 101 whether the fire is detected, and the laser. The distance measurement result using the laser emitted from the light emitting unit 105 may be displayed.

The storage unit 115 may be formed of EEPROM (Electrically Erasable and Programmable Read Only Memory) and the like, and stores a driving program and a communication identifier (ID) assigned to the flame detector 100, and the flame detector 100. ) Can also store the operation status and detection results. As described above, a tag transmitter memory (not shown) included in the tag transmitter 109 may be used instead of the storage unit 115 without configuring a separate storage unit 115.

Meanwhile, the first wired communication unit 117 or the tag transmitter 109 communicates with the flame detector control device 200 to transmit information such as an operation state and a detection result of the flame detector 100 to the flame detector control device 200. do. The communication method through the first wired communication unit 117 may be implemented by a communication method such as RS-232 / 485, CAN communication.

The microcomputer 119 receives a detection signal input from the flame sensor 103 and a command signal input through the remote control communication unit 109 and the first wired communication unit 117, and checks the flame sensor check lamp 103 and the laser light emitting unit. 105, the tag transmitter 109, the display unit 113, the storage unit 115, and the first wired communication unit 117 are controlled. In addition, the microcomputer 119 uses the time elapsed from when the laser is emitted from the laser light emitting unit 105 to detect the laser reflected by the external structure by the laser light receiving unit 107. Calculate the distance to the point where it is reflected.

Meanwhile, the flame detector 100 may further include an inclination sensor 111. The plurality of inclination sensors 111 may be set at an angle of 0 ° after the installation direction of the flame detector 100 is set. ) Detects the up, down, left and right tilts.

Meanwhile, when the inclination sensor 111 is included in the flame detector 100, the display unit 113 displays the inclination value detected by the inclination sensor 111 through the first wired communication unit 117 or the tag transmitter 109. The microcomputer 119 receives the detection signal from the inclination sensor 111 and displays the inclination value through the first wired communication unit 117 or the tag transmitter 109. Send to the detector control device 200, and to inform the user that the slope value is transmitted to the flame detector control device 200 through the first wired communication unit 117 or the tag transmitter 109 through the display unit 113. In addition, the detected gradient value may be stored in the storage 115 or the tag transmitter memory. In addition, the microcomputer 119 controls the bracket to correct the difference between the inclination value and the distance value and the actual inclination value and the distance value stored by the control of the flame detector control device 200, or when measuring the inclination value and the distance value. It can be implemented to correct differences. The bracket may be implemented to be electronically adjustable if it is rotatable vertically, horizontally.

Here, the slope value transmitted to the flame detection control device 200 through the first wired communication unit 117 or the tag transmitter 109 is periodically transmitted according to a time preset by the user, or the measured slope value is transmitted to the user. In this case, it may be transmitted when it is out of a preset allowable angle, or when a tilt value request command is received from the central management server 500 or the management server 400.

The flame detector 100 may further include a self-diagnosis module 121. The self-diagnosis module 121 tests the normal operation of the flame sensor 101 and the internal circuit of the flame detector.

Various data transmitted to the flame detector control device 200 is transmitted to the central management server 500 through the management server 400.

8 is a block diagram for explaining a flame detector control apparatus according to an embodiment of the present invention.

As shown in FIG. 8, the flame detector control apparatus 200 according to the embodiment of the present invention includes a reader unit 201, a controller 203, a second wired communication unit 205, a fourth wired communication unit 207, and a flame detector. A fifth wired communication unit 109 may be included.

The reader unit 201 performs wireless communication with the tag transmitters 109 and 301 of the flame detector 100 or the alarm device 300. The reader unit 201 serves as a coordinator of the wireless network and stores the unique number information of the flame detector control device 200 in an internal memory. When the reader unit 201 performs wireless communication with the tag transmitters 109 and 301 described above, the reader unit 201 includes its own number information in a specific section of the data frame, encodes it, and transmits it to the tag transmitters 109 and 301. The tag transmitters 109 and 301 which receive the radio signal transmitted by the reader unit 201 determine whether the unique number information of the flame detector control device 200 which manages itself by decoding the received radio signal is included. The flame detector 100 or the alarm device 300 extracts the unique number information of the specific flame detector control device 200 stored in the tag transmitter memory or the storage 115, the unique number information included in the received radio signal The control of the flame detector control device 200 only responds with.

In addition, when the reader unit 201 receives a radio signal transmitted by the tag transmitter 109 of the flame detector 100, whether the communication identifier (ID) of the flame detector 100 belonging to its own management area is included. To judge. The reader unit 201 stores IDs of the specific flame detectors 100 managed by the reader in a specific address of the internal memory, and only when the ID stored in the internal memory matches the ID included in the received radio signal. The transmitter 100 transmits a transmission signal to the management server 400 or the central management server 500.

In addition, after the reader unit 201 transmits a radio signal for a radio communication failure test and receives an acknowledgment signal (ACK signal) from the tag transmitters 109 and 301 belonging to its own management area within a predetermined time, If it is determined that there is no obstacle in communication, and does not receive an acknowledgment signal (ACK signal) within a predetermined time, it is determined that there is a radio communication failure, and transmits the information about this to the management server 400 through the control unit 203.

The reader unit 201 is preferably implemented by applying the Zigbee communication standard as a communication protocol.

The control unit 203 controls the reader unit 201 and modulates the radio signal received by the reader unit into a digital signal and transmits it to the management server 400 through the fifth wired communication unit 209. In addition, the wired communication with the flame detector 100 is controlled through the second wired communication unit 205, and the wired communication with the alarm device 300 is controlled through the fourth wired communication unit 207.

On the other hand, the control unit 203 receives the wireless communication failure status information from the reader unit 201, if there is a wireless communication failure, switch the transmission mode to the wired communication mode to activate the second wired communication unit or the fourth wired communication unit, The communication failure information is transmitted to the management server 400. If there is no wired connection to the specific flame detector 100 or the alarm device 300, or if there is a failure in wired communication, the wired communication failure information is transmitted to the management server 400, and the communication mode is again in a wireless communication mode. Change to

9 is a block diagram illustrating an alarm device according to an embodiment of the present invention.

As shown in FIG. 9, the alarm device 300 according to the embodiment of the present invention includes a third wired communication unit 303, an alarm 305, which communicates with the tag transmitter 301 and the flame detector control device 200. The controller 307 and the self-diagnosis module 309 may be included.

The tag transmitter 301 is preferably configured in the same manner as the tag transmitter 109 of the flame detector 100. The alarm 305 is preferably implemented with a siren that generates a visual alarm or a warning sound, and preferably includes both the visual alarm and the siren. The control unit generally controls the alarm 305, the tag transmitter 301, the third wired communication unit 303, and the self-diagnosis module 309. When the self-diagnosis module 309 receives the self-diagnosis command of the flame detector control device 200, the self-diagnosis module 309 checks whether an alarm or the like operates normally.

The management server 400 collects various data transmitted by the plurality of flame detector control apparatus 200, controls the flame detector control apparatus 200, and status information of each flame detector 100 and the alarm device 300. To transmit to the central management server (500). Also, the control command is received from the central management server 500 and the control command of the central management server 500 is performed. The management server 400 may further include a display unit for displaying fire monitoring information including status information of each flame detector 100 and the alarm device 300.

The central management server 500 manages and controls the plurality of management servers 400 and displays the state of all sensor nodes, that is, the flame detector 100, the flame detector control device 200, and the alarm device 300 in real time. . In addition, the control command is transmitted to each sensor node through the management server according to each state. In addition, the central management server may periodically command to diagnose the normal operation of each sensor node. The normal operation test can be performed by providing a self-diagnosis module in each sensor node. In addition, if there is a fire while monitoring the fire monitoring information in real time, the fire recovery command and the fire monitoring information are transmitted to the closest fire occurrence area among the fire recovery agencies in the database and appropriate to perform the fire recovery function.

10 is a configuration diagram illustrating a superframe structure according to an embodiment of the present invention.

The MAC protocol of IEEE 802.15.4 can operate in beacon mode or non-beacon mode. Beacon mode requires synchronization or low latency device support.

The reader unit 201 of the flame detector control apparatus 200 periodically transmits a beacon signal in order to prevent a wireless communication collision. The superframe structure of the signal transmitted by the reader includes a content access period (CAP), a content free period (CFP), and an inactive period, and is located between two beacon frames. The superframe beacons are periodically transmitted by the reader, and the transmission frequency of the beacons is determined by a macBeaconOrder (BO) having a value between 0 and 14. In the superframe structure, the leader unit may select whether to enter a sleep mode in an inactive period. The inactivity rate is determined by the MacSuperframeOrder (SO) and the Mac Beacon Order (BO).

As shown in FIG. 10, the active period of the superframe may be divided into 16 timeslots, and the type of the active period may be divided into CAP and CFP. All frames except the acknowledgment signal (ACK signal or ACK frame) are preferably configured to be transmitted only during the CAP period using the CSMA-CA mechanism. Unlike CAPs, channel access in CFPs is preferably allowed only for reserved cases and for guaranteed time slots (GTSs).

11 is a flowchart illustrating a fire monitoring method according to an embodiment of the present invention.

As shown in FIG. 11, when the flame detector 100 detects a fire through the flame sensor 101 in step S110, ID information of the flame detector 100 stored in the tag transmitter memory or the storage unit 115. Extract and encode the ID information and the fire monitoring information and transmit it to the flame detector control apparatus 200 in a wireless communication method. In step S120, the flame detector control apparatus 200 receives and decodes the radio signal to extract ID information of the flame detector 100, and the ID information is stored in the internal memory of the flame detector control apparatus 200. It is determined by comparing with the flame detector ID information in the management area. In operation S130, the flame detector control apparatus 200 transmits the received fire monitoring information to the management server 400 or the central management server 500 only when the ID information is matched. The flame detector control apparatus 200 may ignore the received signal when the ID information does not match.

12 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention.

As shown in FIG. 12, in operation S210, the flame detector control apparatus 200 encodes its own number information stored in the internal memory of the reader unit 201 together with a control command and transmits the same through a wireless communication. In operation S220, the flame detector 100 or the alarm device 300 that receives the radio signal decodes the received radio signal and extracts the unique number information received from the flame detector control device 200. In this case, the flame detector 100 or the alarm device 300 for security may be configured to decrypt the unique number information using a key provided in advance for security. The flame detector 100 or the alarm device 300 determines whether the unique number information matches the unique number information stored in the tag transmitter memory or the storage unit 115 in the tag transmitters 109 and 301. In operation S230, the flame detector 100 or the alarm device 300 is received only when the received unique number information matches the unique number information stored in the tag transmitter memory or the storage 115 in the tag transmitters 109 and 301. Perform control command.

13 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention.

As shown in FIG. 13, the flame detector 100 or the flame detector control apparatus 200 transmits a signal through wireless communication in step S310. In operation S320, when the flame detector 100, the alarm device 300, or the flame detector control device 200 receives the signal, the flame detection signal 100 transmits an acknowledgment signal (ACK signal). If the flame detector 100, the alarm device 300, or the flame detector control device 200 does not receive the signal, it will not send an acknowledgment signal (ACK signal). In step S330, if the flame detector 100 or the flame detector control device 200 does not receive the acknowledgment signal (ACK signal) within a predetermined time, it is determined that the radio communication failure, and the communication mode is automatically switched to the wired communication mode. do. Flame detector control device 200 is the flame detector 100 or the alarm device 300 is defined to transmit the acknowledgment signal in the CFP section, it is easy to determine the radio communication failure, flame detector 100 and the alarm device 300 may determine a wireless communication failure even when the beacon signal is not properly received. Even when the flame detector 100, the alarm device 300 or the flame detector control device 200 transmits a signal through wired communication in step S340, the wired communication line is not connected or there is a problem in the connection state, thereby preventing wired communication. If it is determined that the communication mode is determined, the communication mode is changed to the wireless communication mode.

The flame detector control device periodically transmits communication failure status information to the management server 400 or the central management server 500.

14 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention.

As shown in FIG. 14, in step S410, the management server 400 or the central management server 500 self-diagnose the flame detector 100 and the alarm device 300 belonging to the management area to the flame detector control device 200. The flame detector control apparatus 200 instructs the flame detector 100 and the alarm device 300 belonging to its management area to perform self-diagnosis. In step S420, the flame detector 100 and the alarm device 300 receives a self-diagnosis command from the flame detector control device 200, and tests the normal operation of various sensors and internal circuits, including the flame sensor, the tilt sensor. In operation S430, the flame detector 100 presets the measured slope value and the distance value, and automatically adjusts the bracket by comparing the stored slope value and the distance value and sets the self-diagnosis result to the management server through the flame detector control device 200. 400) or to the central management server 500.

 Although various embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the scope of the present invention and is not limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea of the present invention. It can be carried out.

1 is a perspective view for explaining a general flame detector,

Figure 2 is a perspective view schematically showing a state in which the flame detector is installed,

3 is a plan view schematically showing a state in which a plurality of flame detectors are installed,

4 is a plan view showing a state in which the flame detector is installed in the wrong direction,

5 is a side view showing a state in which the flame detector is installed in the wrong direction,

6 is a block diagram illustrating a fire monitoring system according to an embodiment of the present invention;

7 is a block diagram illustrating a flame detector according to an embodiment of the present invention;

8 is a block diagram illustrating a flame detector control device according to an embodiment of the present invention;

9 is a block diagram illustrating a warning device according to an embodiment of the present invention;

10 is a configuration diagram for explaining a superframe structure according to an embodiment of the present invention;

11 is a flowchart illustrating a fire monitoring method according to an embodiment of the present invention;

12 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention;

13 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention;

14 is a flowchart illustrating a fire monitoring method according to another embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: flame detector,

11: flame detection window, 13a: display window,

13b: display window, 13c: display window,

15: remote control signal receiving window, 20: bracket,

40: installation direction, 50: detection angle,

60: detection range, 70: boundary area,

80: blind area, 90: wall,

100: flame detector,

101: flame sensor, 103: flame sensor check lamp,

105: laser light emitting portion, 107: laser light receiving portion,

109: tag transmitter, 111: tilt sensor,

113: display unit, 115: storage unit,

117: first wired communication unit, 119: microcomputer,

121: self-diagnosis module, 200: flame detector control device,

201: leader unit, 203: control unit,

205: second wired communication unit, 207: fourth wired communication unit,

209: fifth wired communication unit, 300: an alarm device,

301: tag transmitter, 303: third wired communication unit,

305: alarm, 307: control unit,

309: self-diagnosis module, 400: management server,

500: Central Management Server.

Claims (21)

A plurality of flame detectors including a tag transmitter for performing wireless communication and a first wired communication unit, and determining whether a fire has occurred by detecting a flame with a flame sensor; A flame detector control device including a reader unit for wireless communication with the flame detector and a second wired communication unit for wired communication with the flame detector, the flame detector communicating with the flame detector in a wired or wireless manner; An alarm device for generating a warning light or a warning sound when receiving a control signal from the flame detector control device; And A management server receiving fire monitoring related data from at least one flame detection control device, checking and controlling status information of the flame detection control device, and performing a fire monitoring function; In the case of using a wireless communication method, the flame detector control device transmits a radio signal to the flame detector by including its own number information in a specific section of the data frame, and the flame detector receives the radio signal and receives the radio signal. Fire monitoring system, characterized in that the information is extracted and confirmed and compared with the specific unique number information stored in the tag transmitter and transmits the data only when they match. The method of claim 1, And a central management server for receiving fire monitoring related data from at least one management server and managing the management server integrally, and transmitting fire related information to a fire recovery performing organ when a fire occurs. The method of claim 2, The flame detector control device communicates by switching to a wireless communication when a specific flame detector and a wire communication has a failure, and by switching to a wire communication when a failure of the wireless communication occurs, or communicates communication status information to the management server or the central management. Fire monitoring system, characterized in that the transmission to the server. The method of claim 3, wherein The management server or the central management server periodically instructs a specific flame detector or all flame detectors to perform a self-diagnosis function. Fire monitoring system, characterized in that for transmitting the management server or the central management server. The method of claim 1, The alarm device further includes a tag transmitter for performing wireless communication with the flame detector control device and a third wired communication unit for performing wired communication with the flame detector control device. The flame detector control device has a wired communication with the alarm device. And a fourth wired communication unit configured to perform a wireless communication with the tag transmitter included in the alarm device. The method of claim 5, The flame detector control device communicates by switching to a wireless communication when a failure occurs in a specific alarm device and wired communication, and converts to a wired communication when a failure occurs in a wireless communication, and communicates communication failure status information to the management server or the central office. Fire monitoring system, characterized in that the transmission to the management server. The method of claim 6, Wire communication method is a fire monitoring system, characterized in that the CAN communication method. The method of claim 6, The wireless communication method is a fire monitoring system, characterized in that the Zigbee communication method. The method of claim 5, wherein the flame detector, A laser light emitting unit for emitting a laser; A laser light receiver for detecting a laser beam emitted from the laser light emitter and reflected by an external structure; A first wire communication unit for receiving a distance measurement command from the flame detection control device and transmitting the distance value measured by the distance measurement command to the flame detection control device; The distance between the flame detector and the point marked by the laser is calculated by the time elapsed from when the laser emitter emits the laser to the laser receiver, and is input through the first wired communication unit. And a control unit for controlling the laser light emitting unit and the first wired communication unit according to the command. The method of claim 9, The flame detector further includes a tilt sensor for detecting a tilt change, And the first wired communication unit further transmits the inclination value detected by the inclination sensor to the flame detector control device. 11. The method of claim 10, The control unit And a slope value is periodically transmitted to the flame detector control device at a time interval set by a user. 11. The method of claim 10, The control unit And when the measured inclination value is found to be out of a preset allowable angle by the user, transmitting the inclination value to the flame detector control device. 11. The method of claim 10, The control unit And when the flame detector receives a tilt value request command from the flame detector control device, transmits the tilt value to the flame detector control device. The method according to any one of claims 10 to 13, The flame detector further stores the preset inclination value and distance value in a tag transmitter memory or storage unit, and when the measured inclination value and distance value do not coincide with each other by comparing with the preset inclination value and distance value, respectively. Fire monitoring system, characterized in that for automatically adjusting the vertical and horizontal angles of the flame detector bracket. delete The method of claim 1, The flame detector transmits its ID to the flame detector control device, and the flame detector control device receives the data including the ID of the flame detector and checks the ID of the flame detector to manage the management area of the flame detector control device. The fire monitoring system, characterized in that for transmitting only the signal transmitted by the flame detector to the management server or the central management server if it matches the ID of the flame detector. The method of claim 16, The flame detector control device transmits a beacon signal, and the flame detector receives the beacon signal and synchronizes with the flame detector control device in which the unique number information matches, and during the transmission-only section allocated by the synchronized flame detector control device. Fire monitoring system, characterized in that only transmitting data to the flame detector control device. In the fire monitoring method using a fire monitoring system comprising a flame detector having a tag transmitter, a flame detector control device having a reader and a management server, When detecting a fire having a flame detector, encoding ID information and fire monitoring information of the flame detector stored in a tag transmitter memory or a storage unit and transmitting the encoded flame detection information to a flame detector control device through wireless communication; The flame detector control device decodes the radio signal received from the flame detector and extracts the ID information of the flame detector, and determining whether the ID information corresponds to the ID of the flame detector belonging to the management area of the flame detector control device ; And And the flame detection control device transmits the received fire monitoring information to a management server or a central management server only when the ID information belongs to its own management area. In the fire monitoring method using a fire monitoring system comprising a flame detector having a tag transmitter, a flame detector control device having a reader and a management server, The flame detection control device is encoded with a control command to transmit its own unique number information and transmitting through a wireless communication; The flame detector or alarm device decodes the radio signal received from the flame detector control device, extracts the unique number information of the flame detector control device using the key provided to the flame detector or alarm device, and the unique number information is Determining whether the coincidence number information of the flame detector stored in the tag transmitter memory or the storage unit of the flame detector or the alarm device is identical; And The flame detection or alarm device comprises the step of performing the received control command only when the received unique number information and the unique number information stored in the tag transmitter memory or the storage unit; fire monitoring comprising a Way. In the fire monitoring method using a fire monitoring system comprising a flame detector having a tag transmitter, a flame detector control device having a reader and a management server, The flame detector or the flame detector control unit transmits a signal through wireless communication; Determining that a radio communication failure occurs when the flame detector or the flame detector control device transmits a signal through wireless communication and does not receive an acknowledgment signal (ACK signal) for a predetermined time elapses; Changing the communication mode to a wired communication mode when the flame detector or the flame detector control device determines that the radio communication failure has occurred; Changing the communication mode to a wireless communication mode when the flame detector or the flame detector control device determines that a wire communication error is detected even when transmitting a signal through wire communication; And  The flame detection control device is a fire monitoring method comprising the; transmitting the communication failure status information to the management server or the central management server. In the fire monitoring method using a fire monitoring system comprising a flame detector having a tag transmitter, a flame detector control device having a reader and a management server, The management server or the central management server instructing each flame detector or alarm device to perform self-diagnosis through the flame detector control device; When the flame detector or the alarm device receives a self-diagnosis command from the flame detector control device, the self-diagnosis module checks whether the detection sensor and the internal circuit are normally operated, and the flame detector measures the slope value and the distance value; And The flame detector compares the inclination value and the distance value with the preset slope value and the distance value, respectively, and automatically adjusts the bracket to match the preset value, and self-diagnosis result through the flame detection control device through the management server. Or transmitting to the central management server; Fire monitoring method comprising a.

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