KR101734155B1 - Fire alert apparatus of electricity facilities using non-contact temperature sensor measuring temperature of multisected point - Google Patents

Abstract

The present invention relates to a technology for previously sensing breakout of a fire of an electric facility and particularly, to apparatus for monitoring occurrence of a fire of an electric facility using a non-contact type temperature sensor, which previously senses and notifies a fire symptom using the non-contact type temperature sensor in a disaster prevention area such as an electricity chamber, a power cable and a distributing board. To achieve the purpose, the present invention comprises: a plurality of fire sensing devices installed in a fire prevention area vulnerable to the fire breakout to measure temperatures at corresponding positions in a multi-segmentation manner and to output fire detection signals respectively; a wired and wireless transmitter receiving the fire detection signals from the fire sensing devices and transmitting the signals via an RS-485 communications network; a USB-serial communications conversion device performing a conversion operation to be appropriate for transmitting the fire detection signals, received via the RS-485 communications network, via a USB communications module or transmitting the signals, received via the USB communications module, via the RS-485 communications network; and a fire monitoring device recognizing that a fire breaks out at an arbitrary position within the fire prevention area to display the breakout of the fire at a corresponding position on a screen and to generate an alarm.

Description

FIELD ALERT APPARATUS OF ELECTRICITY FACILITIES USING NON-CONTACT TEMPERATURE SENSOR MEASURING TEMPERATURE OF MULTISECTED POINT USING NON-CONTACT TYPE TEMPERATURE THAT MEASURES TEMPERATURE OF MULTIPARTITION POINT (64 PIX POINTS)

The present invention relates to a technology for detecting the occurrence of fire in electrical equipment in advance, and more particularly, to a non-contact type temperature sensor capable of detecting the occurrence of a fire in advance by using a non-contact type temperature sensor in an emergency room such as an electric room, a power cable, The present invention relates to an apparatus for monitoring the occurrence of a fire in an electric facility using a temperature sensor.

Generally, the main cause of electric fire is short circuit, overcurrent, arc and leakage current of cable. To reduce the occurrence of such electric fires, individual devices such as fire detection sensors and breakers are installed.

Recently, a contact type temperature sensor is separately installed in a place where a fire is likely to occur in a large building, an industrial facility equipped with a mechanical facility, or an electric facility, and a system is provided to notify the manager when heat is detected through these.

However, in the case of the prior art that detects the occurrence of fire by using the contact type temperature sensor, it is difficult to quickly cope with the delay time after the heat generation, and since a large number of temperature sensors are attached to each heat generation position, There is a difficulty in.

Furthermore, it is difficult to detect an unexpected fire symptom occurring in an underground calvert or a certain place in a building in real time and notify an administrator of the underground calvert that a communication line, a wire or the like passes through.

A problem to be solved by the present invention is to detect a fire occurrence indication at each position in real time by using a non-contact type sensor in a disaster prevention area where a power cable, a switchboard or the like is installed and is vulnerable to fire, .

According to an aspect of the present invention, there is provided an apparatus for monitoring the occurrence of fire in an electrical facility using a non-contact temperature sensor, the apparatus comprising: A plurality of fire detection devices each outputting a fire detection signal; A wired / wireless transmitter for receiving a fire detection signal from the fire detection device and transmitting the received fire detection signal through an RS-485 communication network; Serial communication conversion for converting the fire detection signal received through the RS-485 communication network through the USB communication module or converting the signal received through the USB communication module to be suitable for transmission through the RS-485 communication network Device; And a fire detection signal received from the USB-serial communication conversion device, recognizing that a fire has occurred at an arbitrary position in the disaster prevention area, displaying a fire occurrence at the corresponding position on the screen, and generating an alarm And a fire monitoring device.

The disaster prevention area may include an area where a power cable or a switchboard is installed.

The fire sensing apparatus includes a non-contact temperature sensor that is an iR array themometer for measuring temperature in a multi-division manner; And a controller for determining whether or not a fire has occurred at a corresponding position in the disaster prevention zone on the basis of an output signal of the non-contact type temperature sensor and transmitting a fire detection signal corresponding thereto through a Zigbee or RS-485 communication network have.

The non-contact temperature sensor has a structure capable of adjusting emissivity suitable for an object to be measured.

The non-contact type temperature sensor has a structure that can be set and monitored using a parameter setting tool.

According to another aspect of the present invention, there is provided an apparatus for monitoring fire occurrence of an electrical equipment using a noncontact type temperature sensor, the apparatus comprising: a plurality of noncontact type temperature sensors; a plurality of sensor nodes; and a sink node, A fire monitoring device for detecting a fire occurrence in the installed fire monitoring area and transmitting the fire data according to the detected fire occurrence; And a fire monitoring device for recognizing that a fire has occurred at an arbitrary position within the monitored range and displaying a fire occurrence at the corresponding position on the screen based on the fire data transmitted from the fire monitoring device, ; And

The sensor node generates fire data based on ultraviolet rays detected in the fire monitoring target area, and then transmits the fire data in a short-range wireless communication method.

The sink node has a structure for receiving fire data from the sensor node and transmitting the received fire data to the fire monitoring apparatus through the remote wireless communication.

The present invention detects the occurrence of fire at each position in real time by using a non-contact type sensor in a disaster prevention area where a power cable or a switchboard is installed and is vulnerable to fire, and informs the manager through a screen or an alarm, It is possible to recognize the occurrence of a fire at the corresponding position through a screen or an alarm and to take necessary measures.

1 is a block diagram of an apparatus for monitoring fire occurrence in an electrical equipment using a noncontact type temperature sensor according to an embodiment of the present invention.
2 shows a fire detection device installed in a fire-fighting area.
3A shows an actual photograph of a non-contact type temperature sensor installed in a fire detection apparatus.
3B is a view showing the principle of temperature measurement in the non-contact type temperature sensor.
4 is a block diagram of an apparatus for monitoring fire occurrence in an electrical equipment using a non-contact type temperature sensor according to another embodiment of the present invention.

It is to be understood that the words or words used in the present specification and claims should not be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to best describe its invention It is to be understood that the present invention is not limited to the above-described embodiments.

It is also to be understood that the specific structure or functional description is illustrative only for the purpose of illustrating an embodiment consistent with the concept of the present invention and that the embodiments according to the concept of the present invention may be embodied in various forms, But are not limited to, examples.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a fire generation monitoring apparatus for a switchboard using a non-contact temperature sensor for measuring temperature of a multi-division point (64 pixel points) according to an embodiment of the present invention. As shown in FIG. 1, 10N, a wired / wireless transmitter 20, a USB-serial communication conversion device 30, and a fire monitoring device 40.

The plurality of fire sensing apparatuses 10A to 10N are installed in a fire prevention zone susceptible to fire in which an electric room, a power cable, or a switchboard is installed. Each of the fire sensing apparatuses 10A to 10N includes a plurality of noncontact type temperature sensors 11 and a controller 12.

The non-contact temperature sensor 11 is an iR array themometer for measuring the temperature in a multi-dividing manner, which measures a plurality of points of temperature rather than a single point of temperature.

Since the noncontact type temperature sensor 11 has a wide field of view (FOV), the object surface temperature and the ambient temperature can be measured together. The non-contact type temperature sensor 11 can adjust the emissivity suitable for the object to be measured. Also, the non-contact type temperature sensor 11 can be set and monitored by using a parameter setting tool.

3A and 3B, the noncontact type temperature sensor 11 includes an IR array I2C interface such as a 16 × 4 pixel, Ta (outside temperature) -40 to 85 ° C., To (object temperature) -50 to 300 ° C in a non-contact manner. Therefore, since the noncontact type temperature sensor 11 does not have to wait until a thermal equilibrium state is established, the temperature of the noncontact type temperature sensor 11 is fast, (High-frequency heating), objects with rapid temperature changes (in units of 100 msec), objects in a vacuum chamber (window penetration measurement), objects with extremely high temperatures that can not be measured with contact thermometers, It is a temperature sensor which is used when frequent temperature measurement is required for a surface whose temperature distribution varies, an object whose temperature changes during contact, and an object with low thermal conductivity.

The temperature of the object is raised by the infrared energy (heat energy) radiated to the object from the non-contact temperature sensor 11, and the infrared ray radiated to the object is radiated again on the surface of the object. The noncontact temperature sensor 11 measures the infrared energy radiated from the surface of the object as described above. The infrared energy measured by the noncontact type temperature sensor 11 includes infrared energy reflected from the surface of the object by another heat source and infrared energy transmitted through the object. Only the energy radiated by the object except the two is self- Used for temperature measurement. As described above, the temperature sensor 11 does not need to use an optical visible cut filter because it has sensitivity only to infrared rays, unlike a semiconductor photoelectric sensor that can not distinguish visible light.

The controller 12 is connected to the non-contact temperature sensor 11 to determine whether a fire has occurred at a corresponding position (node) in the disaster prevention zone based on the output signal of the non-contact temperature sensor 11. When it is determined that a fire has occurred, Through a Zigbee or RS-485 communication network.

The wired / wireless transmitter 20 is connected to the controller 12 and transmits a fire detection signal received therefrom through the RS-485 communication network.

On the other hand, the USB-serial communication converter 30 is connected to the wired / wireless transmitter through an RS-485 communication network and is connected to the fire monitoring device 40 via a USB communication module. Accordingly, the USB-serial communication conversion device 30 transmits a fire detection signal received through the RS-485 communication network through the USB communication module, or conversely, receives the signal received through the USB communication module via the RS-485 communication network And to convert it to be suitable for transmission.

The USB-serial communication conversion device 30 collects and transmits a fire detection signal output from each of the non-contact type temperature sensors 11 of the fire sensing devices 10A-10N. The USB-serial communication conversion device 30 can be configured to have three channels of alarm output, and a tower lamp or a horn can be provided to ensure quick judgment and visibility.

The fire monitoring device 40 monitors the occurrence of fire at the corresponding location in the disaster prevention area through the USB port for each independent group. That is, the fire monitoring apparatus 40 recognizes that a fire has occurred at an arbitrary position in the disaster prevention area based on the fire detection signal transmitted from the USB-serial communication conversion device 30 through the USB port On the screen, the occurrence of fire at the corresponding position is displayed, and an alarm is generated. Accordingly, the manager can recognize the occurrence of fire at the corresponding position and take necessary actions through the screen or the alarm without paying any special attention.

Meanwhile, FIG. 4 is a block diagram of a fire generation monitoring apparatus for a switchboard using a non-contact temperature sensor for measuring temperature of a multi-division point (64 pixel points) according to another embodiment of the present invention. (110) and a fire monitoring device (120).

The fire sensing apparatus 110 includes a plurality of non-contact temperature sensors 111, a plurality of sensor nodes 112, and a sink node 113.

The fire detection device 110 is installed in an area to be monitored where a fire is likely to occur, such as an electric room, a power cable, or a power distribution panel, and a plurality of fire detection devices 110 may be installed as needed.

The noncontact temperature sensor 111 is installed in a monitored area or an object to be monitored in the monitored area, and has the same configuration as the noncontact temperature sensor 11 of FIG. 1 and performs the same function.

The plurality of sensor nodes 112 are installed in areas where fire is likely to occur, and detect the occurrence of fire at the corresponding locations. In general, a spark generated in a switchboard, an electric room, or an area where a power cable is installed generates ultraviolet rays of a specific wavelength band. The sensor node 112 determines whether or not a fire has occurred based on ultraviolet rays of such a specific wavelength band. Therefore, the sensor node 112 is judged whether or not the fire is generated based only on ultraviolet rays of a specific wavelength band generated from the spark, so that the fire in the target area is not affected by the external environment such as sunlight, mist, So that it can be accurately detected. The fire detection distance and installation distance of the sensor node 112 are not particularly limited and can be appropriately changed as needed.

The sensor node 112 generates fire data on the basis of the detected ultraviolet rays after detecting fire occurrence on the basis of the above-mentioned principle. The sensor node 112 is implemented to have a unique device identification number using RFID (Radio Frequency Identification) or USN (Ubiquitous Sensor Network) technology. Based on this technology, the fire data includes a location of a fire, The identification number of the sensed sensor node 112 and the identification number of the adjacent non-contact temperature sensor 111, and the like.

When the fire data is generated, the sensor node 112 transmits the fire data to the sink node 113 using the near field wireless communication method. The short-range wireless communication scheme is not particularly limited, and may include a zigbee scheme. The ZigBee scheme is a low data rate wireless communication technology as a representative technology of a wireless sensor network having advantages of low power, low cost, and ease of use. The plurality of sensor nodes 112 constitute a wireless mesh network so that some of the other sensor nodes in the fire sensing apparatus 110 including the sensor nodes which are difficult to continuously manage can not be discharged It is possible to transmit stable fire data to the sink node 113 through the routing between the remaining sensor nodes 112 that are normally operating.

The sink node 113 receives the fire data from the sensor nodes 112 and transmits the received fire data to the fire monitoring apparatus 120 through the remote wireless communication. As the long-distance wireless communication, a wireless local area network (LAN), a code division multiple access (CDMA), a dedicated line, or the like may be used.

The installation position of the sink node 113 is not particularly limited, but it is preferable that the sink node 113 is installed at a position relatively easy for the administrator to access and wirelessly communicate with the fire monitoring apparatus 120.

The sink node 113 may check whether the plurality of sensor nodes 112 are operating normally at predetermined time intervals and transmit the check result to the fire monitoring apparatus 120. [ The nodes 112 may not operate due to battery discharge or failure because they are difficult to maintain continuously. The sink node 113 confirms the sensor nodes 112 and transmits the same to the fire monitoring apparatus 120 so that the manager can take necessary measures.

Based on the fire data received from the sink node 113, the fire monitoring apparatus 120 recognizes that a fire has occurred at an arbitrary position in the corresponding disaster prevention zone, displays a fire occurrence at the corresponding position on the screen, And generates an alarm.
In addition, the fire monitoring apparatus 120 displays information on sensor nodes that are not operating normally based on the check result of the sensor nodes 112 transmitted from the sink node 113, So that they can take action.
Therefore, the manager can recognize the sensor nodes that are not operating normally or fire at the corresponding position through the screen or alarm, without taking any special care, so that the manager can take necessary measures.

Although the preferred embodiments of the present invention have been described in detail above, it should be understood that the scope of the present invention is not limited thereto. These embodiments are also within the scope of the present invention.

10A-10N, 110: fire detection device 11: non-contact temperature sensor
12: controller 20: wired / wireless transmitter
30: USB-serial communication conversion device 40,120: Fire monitoring device
111: non-contact temperature sensor 112: sensor node
113: sink node

Claims (11)

delete delete delete delete delete delete A plurality of non-contact temperature sensors, a plurality of sensor nodes, and a sink node to detect a fire occurrence in a fire monitoring area where an electric room, a power cable, or a switchboard is installed and check whether fire data and sensor nodes A fire monitoring device for transmitting the result to a fire monitoring device; And
The control unit recognizes that a fire has occurred at an arbitrary position within the monitoring target secondary zone based on the fire data transmitted from the fire monitoring apparatus, displays a fire occurrence at the corresponding position on the screen, generates an alarm, And a fire monitoring device for displaying on the screen information about sensor nodes that are not operating normally based on the check result of checking whether the sensor nodes (112)
Wherein the plurality of sensor nodes comprise:
The fire data is generated on the basis of the ultraviolet rays detected in the fire monitoring target area, and then the fire data is transmitted to the sink node through the short distance wireless communication method through routing between the normally operating sensor nodes .
The sink node,
Periodically checking whether the sensor nodes are operating normally, transmitting a check result to the fire monitoring apparatus, receiving fire data from the sensor node, and transmitting the received fire data to the fire monitoring apparatus through the remote wireless communication In addition,
The noncontact type temperature sensor comprises:
IR array themometer that measures the temperature in a multi-divided manner. It measures non-contact temperature of 64 (16 × 4 pixel points) points rather than single points, and Ta (outside temperature) -40 to-85 ° C and To (object temperature) -50 to 300 ° C in a non-contact manner and has a wide field of view (FOV) capable of measuring the object surface temperature and the object ambient temperature together. (64 pixel points) for measuring the temperature of a switchgear using a non-contact temperature sensor.
8. The apparatus according to claim 7, wherein the non-contact temperature sensor
And a non-contact type temperature sensor for measuring a temperature of a multi-division point (64 pixel points), wherein the non-contact type temperature sensor has a structure capable of adjusting an emissivity of an object to be measured.
8. The apparatus according to claim 7, wherein the non-contact temperature sensor
A non-contact temperature sensor for measuring a temperature of a multi-division point (64 pixel points) characterized by enabling setting and monitoring using a parameter setting tool.
8. The method of claim 7, wherein the sensor node
Wherein the fire data is generated based on ultraviolet rays detected in the fire monitoring target area, and then the fire data is transmitted in a short distance wireless communication method.
8. The method of claim 7, wherein the sink node
Wherein the fire sensor receives the fire data from the sensor node and transmits the received fire data to the fire monitoring apparatus through the remote wireless communication.

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