KR20220160339A - Fire detection method, device, and system using a plurality of wireless sensors loaded with bulk material - Google Patents

Abstract

The present invention relates to a fire detection method and system using a wireless sensor loaded with bulk materials. The fire detection method using a wireless sensor loaded with bulk materials comprises: a wireless sensor dropping step in which a sensor dropping unit drops a wireless sensor on a transfer unit moving bulk materials to be stored in a storage; an information measuring step in which the wireless sensor loaded between the loaded bulk materials measures bulk material information and location information of the wireless sensor wherein the bulk material information includes at least one of a gas concentration generated from the loaded bulk materials and a temperature; an information transmission step of transmitting the bulk material information measured by the wireless sensor to a control server or a user terminal; and an ignition monitoring step of monitoring a point, in which the gas concentration or temperature above a threshold value is measured for each location inside the loaded bulk materials based on the bulk material information transmitted by an integrated control room or a user terminal. According to the present invention, the location of spontaneous ignition can be checked in real-time such that immediate response is possible and costs related to installation and operation can be reduced.

Description

Fire detection method, device, and system using wireless sensors loaded with bulk materials

The present invention relates to a fire detection method, apparatus, and system using a wireless sensor loaded with bulk material.

Recently, as part of a fine dust reduction measure, a project to indoor the outdoor coal storage of coal-fired power plants is being promoted. Since coal storage stores bituminous coal for a long period of time and exposes it to the air naturally, it is vulnerable to spontaneous combustion caused by an increase in internal temperature due to oxidation and complete drying. . In addition, 1 to 5% of the total low coal is lost due to spontaneous combustion of coal, resulting in a loss of a huge amount of bituminous coal, which increases costs and lowers management efficiency.

In order to prevent this, Korean registration notice No. 10-1880099, "Coalfield ignition monitoring system using drones", includes a video camera for capturing images, a thermal imaging camera for detecting heat present in the shooting point, the video camera and the thermal imaging camera. Bituminous coal in the air using a drone equipped with a gimbal that controls the shooting angle of an image camera, a distance sensor, and a communication device having a communication function, and a ground control device consisting of at least one of a manual control device and an automatic control device that controls the drone. However, according to the conventional invention, only the temperature of the surface of the coal can be monitored, so when spontaneous ignition occurs due to the temperature rise inside the coal, it cannot be detected before the fire rises to the surface of the coal.

In addition, there has been a conventional invention in which a thermal imaging camera or gas detector is installed to perform safety monitoring such as temperature and gas measurement, but depending on the installation location of the gas detector, harmful gases may not be detected. was difficult to monitor.

In other words, the spontaneous combustion safety monitoring system currently used in thermal power plants does not monitor the entire stockpile on a single screen, but separates thermal imaging cameras and displays them on the screen, so the operator cannot check the exact location of spontaneous ignition. Since only a rough location can be confirmed, on-site confirmation is essential. Therefore, a plan to monitor and prevent spontaneous ignition in advance was required, considering not only the visible position of the stacked coal but also the entire shape of the loaded coal, including the inside of the coal. .

(Patent Document 1) KR10-1880099 B1

In order to solve the above-described problems, the bulk material is loaded with a wireless sensor to measure the shape or volume of the loaded material or to measure the internal temperature and gas of the bulk material in real time to prevent spontaneous ignition. It is intended to provide a fire detection method, device, and system using a wireless sensor loaded with materials.

A fire detection method using a wireless sensor loaded with bulk material according to an embodiment of the present invention includes a wireless sensor dropping step in which a sensor dropping unit drops a wireless sensor on a transfer unit that moves the bulk material to be stored in a storage; A wireless sensor loaded together between the loaded bulk materials measures the information of the bulk materials and the location information of the wireless sensor, and the information of the bulk materials is the concentration and temperature of gas generated from the loaded bulk materials. Information measuring step that includes at least one of; an information transmission step of transmitting the bulk material information measured by the wireless sensor to a control server or a user terminal; and an ignition monitoring step in which an integrated control room or a user terminal monitors a point where a gas concentration or temperature above a threshold value is measured for each location inside the loaded bulk material based on the transmitted bulk material information.

In addition, according to an embodiment of the present invention, a shape modeling step of modeling the entire 3D shape or volume of the bulk material using the bulk material information transmitted by the integrated control room or the user terminal; may include .

In addition, according to one embodiment of the present invention, when the bulk material is shipped for use, a wireless sensor loaded with the bulk material is separated from the bulk material using a first recovery device and is first collected. A secondary wireless sensor recovery step; may be included.

In addition, a second wireless sensor recovery step of additionally performing a second recovery of removing the wireless sensor using a second recovery device when the wireless sensor that is not separated after the first wireless sensor recovery step is present; can

On the other hand, in the wireless sensor drop step according to an embodiment of the present invention, the moving speed of the transfer unit for moving the wireless sensors or the number of wireless sensors dropped at one time may be adjusted in consideration of the arrangement interval of the wireless sensors.

In addition, in the ignition monitoring step according to an embodiment of the present invention, when the temperature of the bulk material and the generated gas concentration exceed a set threshold value, an alarm may be provided visually or audibly.

Meanwhile, a fire detection device using a wireless sensor loaded with bulk material includes a sensing unit that measures at least one of gas concentration and temperature of the bulk material, and a communication unit that transmits the bulk material information measured by the sensing unit. And, a plurality of wireless sensors including a control unit for managing the operation of the wireless sensor; A sensor dropping unit for dropping the wireless sensor onto a transfer unit for transferring bulk material; and a sensor recovery unit that separates and collects the wireless sensor loaded with the bulk material from the bulk material transported for shipment.

According to one embodiment of the present invention, the sensing unit includes at least one of a temperature detection sensor, a gas detection sensor, a GPS sensor, and a beacon, and a rechargeable battery may be built-in.

In addition, the wireless sensor according to an embodiment of the present invention includes an enclosure surrounding a built-in sensing unit, a communication unit, and a control unit, and the enclosure may be made of a metal material. When the sensor collection part is made of a metal material and is a magnetic separator, the wireless sensor can be attached and separated from the bulk material by magnetic force.

In this case, the sensor recovery unit may be at least one of a screen or a magnetic separator using magnetic force, and the sensor recovery unit may include a plurality of recovery devices. It is possible to reliably collect wireless sensors by installing multiple retrieval devices.

A fire detection device system using a wireless sensor loaded with bulk material includes the above-described fire monitoring device; And based on the bulk material information received from the fire detection device, whether the temperature or gas concentration of the bulk material exceeds a threshold value is detected to monitor whether or not a fire occurs, or to monitor the location information of the distributed wireless sensor. It can include an integrated control room that models the entire 3D shape or volume of the bulk material loaded along it.

Further, according to an embodiment of the present invention, a user terminal receiving the bulk material information, monitoring information, or modeling information from the fire detection device or the integrated control room may be further included, and the integrated control room detects spontaneous combustion. In this case, the position of the spontaneous ignition occurrence point may be transmitted to the user terminal by calculating the three-dimensional coordinates of the spontaneous ignition occurrence point according to the location information of the wireless sensor.

According to one embodiment of the present invention, the stored shape of the bulk material can be 3D modeled by utilizing a wireless sensor that is distributed and located together with the bulk material, and the operator can measure the temperature or gas generation by material location, including the inside of the stockpile. Since the user can check the location of spontaneous ignition in real time without checking separately on the site, immediate response is possible and costs related to installation and operation can be reduced.

1 is a block diagram schematically illustrating a fire detection system using a wireless sensor loaded with bulk material according to an embodiment of the present invention.
2 illustrates a wireless sensor dropping process of a fire detection system using a wireless sensor loaded with bulk material according to an embodiment of the present invention.
3 schematically illustrates a wireless sensor recovery process of a fire detection system using a wireless sensor loaded with bulk material according to an embodiment of the present invention.
FIG. 4 illustrates specific embodiments of the wireless sensor recovery process shown in FIG. 3 .
5 is a monitoring screen for bulk material using a wireless sensor loaded with bulk material according to an embodiment of the present invention.
6 is a flow chart of a fire detection method using a wireless sensor loaded with bulk material according to an embodiment of the present invention.
7 illustrates a flow chart for wireless sensor usage and deployment according to one embodiment of the present invention.

Hereinafter, preferred embodiments will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, in describing a preferred embodiment of the present invention in detail, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and actions.

In addition, the size between the devices disclosed in the accompanying drawings is not the same as the actual size, the ratio between the devices may not be kept the same, and may be displayed enlarged or reduced to clearly show the device, and each step of the drawing Illustrates steps according to function, the order can be changed, and is not bound by the order of the flowchart.

In addition, throughout the specification, when a part is said to be 'connected' to another part, this is not only the case where it is 'directly connected', but also the case where it is 'indirectly connected' with another element in between. include In addition, 'including' a certain component means that other components may be further included, rather than excluding other components unless otherwise stated.

Terms or words used in this specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical details of the present invention.

1 is a block diagram schematically illustrating a fire detection system using a wireless sensor loaded with a bulk material 1 according to an embodiment of the present invention.

The bulk material 1 refers to materials in the form of particles that need to be accumulated and stored on a large scale, and may include, for example, not only coal including bituminous coal, but also materials of other materials such as grains in the form of powder such as corn and flour. have. However, an embodiment described below is limited to coal, and the claims are not limited by the following exemplary embodiments.

In addition, when the bulk material 1 is coal, there are various types of coal storage, for example, there are indoor coal storage as well as outdoor storage for storing coal in the form of piles, silo type storage, There may be shed type stockpiles, spce fram stockpiles, and expanded air film stockpiles.

That is, there may be various storage types depending on the type of bulk material and the type of coal storage, and when monitoring the occurrence of fire using a drone as in the prior art, it is difficult to use in a coal storage with a low ceiling, so the type of bulk material and a fire monitoring system independent of the type of coal storage.

Therefore, as shown in FIG. 1, the fire detection system according to an embodiment of the present invention performs communication with the wireless sensor 100 loaded with the bulk material 1 and the wireless sensor 100, It may include an integrated control room 200 that detects a fire using sensing information detected by the wireless sensor 100, and a user terminal 300 that provides whether or not a fire is detected while a worker moves to perform a task. ) may further include.

The bulk material 1 must be stored, and the fire detection system according to an embodiment of the present invention can be performed as long as the wireless sensor 100 is stored together with the bulk material 1, so the bulk material 1 ), regardless of the type or type of coal storage.

The bulk material 1, for example, the wireless sensor 100, which is distributed and loaded together with coal, includes a sensing unit 110 that measures at least one of a gas concentration and a temperature of the bulk material 1; It may include a communication unit 130 that transmits information on the bulk material 1 measured by the sensing unit 110 and a control unit 120 that manages the operation of the wireless sensor 100 .

The sensing unit 110 may include a plurality of sensors, and specifically may include a temperature detection sensor, a gas detection sensor, and a location sensor such as a GPS or beacon. Preferably, both the temperature and gas concentration of the bulk material 1 can be measured by including both the temperature sensor and the gas sensor.

Gas is generated in the process of oxidation of the coal pile, and the internal temperature rises due to the generated gas, increasing the temperature inside the coal pile. Oxidation proceeds not only on the surface where the coal pile is in contact with the outside air, but also inside the coal pile, and spontaneous ignition may occur as the temperature rises.

Since the sensing unit 110 is loaded with the bulk material 1, it can measure not only the surface of the bulk material 1 that can be observed from the outside, but also the gas concentration and temperature rise inside, so that spontaneous ignition occurs more quickly and accurately. can detect

At the same time, the position information of the wireless sensor 100 can be measured by the position sensor in the sensing unit 100, and the position and temperature change of the plurality of wireless sensors 100 distributed inside the bulk material 1 can be measured. A spontaneous ignition point may be accurately calculated according to the number of detected wireless sensors 100 .

Specifically, as shown in FIG. 1, it is possible to detect not only the position in the X and Y-axis directions, but also the position in the Z-axis direction in coals piled high and long, so that the X, Y, and Z-axis coordinates of the exact spontaneous ignition point are detected. , and it is possible to pinpoint the exact location without the operator having to go through additional confirmation work, so that quick fire suppression is possible.

In addition, the control unit 120 commands the sensing unit 110 to measure the gas concentration, temperature, and location, or commands the user terminal 300 or the integrated control room 200 to transmit the measured sensing information to the wireless sensor 100. It is possible to manage and control the operation of, and the communication unit 130 transmits the measured sensing information to the user terminal 300 or the integrated control room 200, or transmits information that the battery is low and needs to be charged when the battery is low. can

In addition, the wireless sensor 100 may further include a power supply unit 140, and may receive power through the power supply unit 140 or may receive power from a battery having a built-in rechargeable battery.

In addition, the wireless sensor 100 may include an enclosure enclosing the above configuration to protect the above-described sensing unit 110, control unit 120, communication unit 130, and power supply unit 140, and the shape of the enclosure can be spherical or of various shapes depending on the requirements within the system. The wireless sensor 100 is transported together with the bulk material 1 and can be subjected to frequent shocks and can experience high pressure or temperature due to generated gas, etc., the enclosure is made of a material that can withstand high pressure and shock, It can be configured to have structure and function.

However, preferably, the wireless sensor 100 may have a spherical enclosure in the form of a smart ball.

In addition, the wireless sensor 100 may include a separate storage unit, memory, etc. to store the result measured by the sensing unit 110 by itself.

On the other hand, the integrated control room 200 includes a communication unit 210 that receives sensing information measured by the sensing unit 110 from the wireless sensor 100, a monitoring unit 220 that monitors the occurrence of a fire based on the sensing information, or It may include a 3D modeling unit 230 that models the 3D shape or volume of the entire bulk material 1 based on the sensing information, and a database 240 that stores the sensing information, monitoring results, or 3D modeling results. .

The wireless sensor 100 is transported together with the bulk material 1 and loaded into the storage 10, and the distributed arrangement of the wireless sensor 100 soon becomes the loading form of the bulk material 1. At this time, the number of wireless sensors 100 may be tens, hundreds, or thousands.

Therefore, when the positional information of the entire wireless sensor 100 is connected, the overall loaded shape of the bulk material 1 can be known, and thus the 3D shape of the bulk material 1 can be modeled. A worker can obtain a 3D shape or volume to manage how much material is stored in each storage space of the storage 10, and can also be used to determine inventory, making it easy to manage tens of tons of material.

The 3D shape may be shown in various shapes desired by the operator, such as up, down, left, right, cross-section, and rotation, and the volume is calculated based on the 3D shape to calculate the amount of bulk material and inventory management. can be utilized That is, it can be used in conjunction with various information required for bulk material management while performing fire monitoring.

Therefore, the fire detection device using the wireless sensor 100 loaded with the bulk material 1 includes a sensing unit 110 for measuring the gas concentration and temperature of the bulk material 1, and the sensing unit 110 It may include a plurality of wireless sensors 100 including a communication unit 130 for transmitting bulk material 1 information measured by and a control unit 120 for managing the operation of the wireless sensor 100, The plurality of sensors 100 according to an embodiment of the present invention include at least one of a temperature detection sensor, a gas detection sensor, a GPS sensor, and a beacon, and a rechargeable battery may be embedded therein.

In addition, according to one embodiment of the present invention, the sensor dropping unit 50 for dropping the wireless sensor 100 onto the transfer unit 20 for transferring the bulk material 1, and the bulk material 1 and It may include a sensor recovery unit 30 that separates and collects the wireless sensor 100 loaded together with the bulk material 1 transported for shipment.

Specifically, as shown in FIGS. 2 and 3 , the sensor drop unit 50 may be a plurality of conveyor belts, and is placed in the conveying path for transporting the bulk material 1 to be stored in the storage 10. It can be. As an embodiment, as shown in FIG. 2, the first conveyor belt 21 moves in a first direction and transfers the wireless sensor 100, and the second conveyor belt 22 moves in a direction opposite to the first direction. In the second direction, the bulk material 1 , for example, coal may be transported as shown in FIG. 2 .

A third conveyor belt 23 is disposed at the bottom in the opposite end direction where the first conveyor belt 21 and the second conveyor belt 22 face each other, and the third conveyor belt 23 is moved from the first conveyor belt 21 The wireless sensor 100 may be dropped, and the coal may be dropped from the second conveyor belt 22 to the third conveyor belt 23 to be combined and transported to the storage 10. At this time, by adjusting the conveyor belt conveying speed of the first conveyor belt 21 for transporting the wireless sensor 100, or by adjusting the number of wireless sensors 100 to be dropped, the degree of mixing of the coal and the wireless sensor 100, That is, the arrangement state of the wireless sensor 100 can be adjusted.

For example, when the speed of the first conveyor belt 21 is set to be faster than the speed of the second conveyor belt 22, more wireless sensors 100 can be placed in the same amount of coal, and the total coal volume and 3D The wireless sensor 100 may be disposed according to the shape.

Alternatively, if the amount of the wireless sensors 100 dropped at one time is increased, more wireless sensors 100 can be disposed in the same amount of coal, so that the gas concentration or temperature according to each position can be more accurately measured.

Therefore, the wireless sensor ( 100) can be appropriately placed, so the exact spontaneous ignition point can be calculated from the loaded coal location, and it can also be used for coal inventory management.

Alternatively, the speed of the second conveyor belt 22 or the third conveyor belt 23 may be controlled so that the wireless sensor 100 is disposed at an appropriate position. In addition to the conveyor belt, the wireless sensor 100 and the bulk material 1 may be appropriately mixed and disposed using another transfer unit 20 .

As another embodiment, as shown in FIG. 2 , other conveyor belts corresponding to the first conveyor belt 21 and the second conveyor belt 22 may be further installed. Baskets can be separately installed on other conveyor belts to adjust the speed or amount of drop, or the baskets can be omitted.

Therefore, the first conveyor belt 21 and the second conveyor belt 22 can be directly dropped onto the third conveyor belt 23, or a separate wireless sensor 100 can be moved on the first conveyor belt 21. After the wireless sensor 100 is dropped on an additional conveyor belt, it can be dropped on a third conveyor belt 23, and the bulk material 1 is moved on the second conveyor belt 22. After the material 1 is dropped, it may be dropped onto the third conveyor belt 23 . At this time, a separate basket or container may be installed on the additional conveyor belt.

Meanwhile, after the bulk material 1 and the wireless sensor 100 are stored together in the storage 10 according to the above-described process, when the bulk material 1 is shipped for use, the sensor retrieval unit 30 The wireless sensor 100 can be retrieved.

Specifically, as shown in FIG. 3, in the storage 10, the bulk material 1 and the wireless sensor 100 are loaded together, and the transport unit to export the bulk material 1 to the shipping unit 40. When the bulk material 1 is transferred to (20), the wireless sensor 100 loaded with the bulk material 1 can also be transferred together.

In the process of transportation, the sensor recovery unit 30 separates the wireless sensor 100 and the bulk material 1, filters only the wireless sensor 100, and the bulk material 1 can be shipped through the shipping unit 40. have.

The sensor recovery unit 30 according to an embodiment of the present invention may be a screen 31 having a hole 311 of a size capable of separating the wireless sensor 100 as shown in FIG. 4(a). . The screen 31 may be placed in the middle of the conveying path of the conveying unit 20, and during conveying, the bulk material 1 is smaller than the size of the hole 311 of the screen 31 and passes through the screen 31, wirelessly The sensor 100 is larger than the size of the hole 311 of the screen 31 and cannot pass through the hole 311 and is transferred as it is and can be moved in a separate basket or conveyor belt. The type of screen 31 may vary depending on the size or shape of the wireless sensor 100 . Alternatively, the wireless sensor 100 may pass through and the screen size may be set so that the bulk material 1 does not pass through.

The wireless sensor 100 classified through the above process can be recovered, and the bulk material 1 can be shipped to the shipping unit 40 as it is. However, if the wireless sensor 100 still remains in the transfer unit 20 being transported toward the shipping unit 40, all of the remaining wireless sensors 100 must be collected.

Therefore, according to an embodiment of the present invention, a plurality of sensor recovery units 30 may be installed to undergo a plurality of sensor recovery processes.

According to another embodiment of the present invention, after performing the primary recovery through the screen 31 as shown in FIG. 4 (a), as shown in FIG. 4 (b), the magnetic separator (Magnetic Separator, 32) can be placed in the rear to perform the secondary recovery.

At this time, the wireless sensor 100 according to an embodiment of the present invention has an enclosure surrounding the built-in sensing units 110 to protect the built-in sensors, and the enclosure may be made of a metal material. When the sensor recovery unit 31 is a magnetic separator 32 made of a metal material, the wireless sensor 100 can be attached to and separated from the bulk material 1 by magnetic force.

In addition, the wireless sensor 100 may have an enclosure surrounding all components such as the sensing unit 110, the communication unit 130, and the control unit 120.

That is, the wireless sensor 100 that could not be separated in the first recovery process may be additionally separated by performing the second recovery, and the screen 31 and the magnetic separator 32 may be installed according to conditions regardless of order.

Therefore, the sensor recovery unit 30 may be at least one of the screen 31 or the magnetic separator 32 using magnetic force, or the sensor recovery unit 30 includes a first recovery device and a second recovery device in plurality. In this case, the first recovery device may be at least one of the screen 31 and the magnetic separator 32, and the second recovery device may be the other one of the screen 31 or the magnetic separator 32.

The above-described sensor recovery unit 30 is placed in the transfer unit 20 between the storage 10 and the shipping unit 40 to separate the wireless sensor 100 loaded with the bulk material 1, and the bulk material ( 1) is used and the wireless sensor 100 can supply power through the power supply unit 140 or replace the battery. Thereafter, the wireless sensor 100 may be sent to the sensor drop unit 50 and reused.

On the other hand, the fire detection device system using the wireless sensor 100 loaded with the bulk material 1 is based on the above-described fire monitoring device and the bulk material 1 information received from the fire detection device. Detect whether the temperature or gas concentration of the bulk material (1) exceeds a threshold value to monitor whether or not a fire occurs, or the entire 3D shape of the loaded bulk material (1) according to the location information of the dispersed wireless sensor Alternatively, an integrated control room 200 modeling a volume may be included.

As shown in FIG. 5, the screen of the storage 10 is displayed on the display screen of the integrated control room 200 to provide the operator with the internal situation of the storage 10, and the gas concentration or temperature for each location can be displayed. , especially gas concentrations or temperatures that exceed threshold values.

As an embodiment, the actual screen of the storage 10 may be displayed, or the entire 3D shape or volume of the entire bulk material 1 according to the location information of the wireless sensor 100 obtained using the wireless sensor 100 may be modeled and displayed, and identification marks such as A1, A2, A3, A4, A5, A6, A7, etc. may be given according to the area where the bulk material 1 is loaded on the modeled screen, and the A1 to A5 Areas can be the same or different.

As shown in FIG. 5, it is possible to display that the temperature at the point (X1, Y1, Z1) of A1 is 42 ° C using the modeled screen, and the gas concentration at the point (X2, Y2, Z2) of A3, e.g. For example, it can be shown that the concentration of carbon monoxide (CO) is 200 ppm.

When the bulk material 1 is coal, the gas concentration may be methane or CO gas concentration, and a methane gas detection sensor or a CO detection sensor or a methane and CO sensor is placed inside the wireless sensor 100 to measure it can make it

That is, the concentration of the gas to be measured is different depending on the type of the bulk material 1, and the gas concentration of the gas to be measured can be measured using a sensor capable of detecting the gas to be measured.

In addition, by comparing the areas of A1 to A7 through the 3D modeled screen, it is possible to determine the loading of bulk material (1) in each zone. For example, if the area of A2 is small but the area of A4 is larger, the bulk of A2 After recognizing that the material (1) loading is smaller, the bulk material (1) in the A4 area can be shipped first, or the bulk material (1) transported for storage in the storage 10 can be loaded first toward A2 . That is, it is possible to determine and control different driving methods according to the loading amount. However, the above example is an exemplary embodiment and does not always ship first or avoid loading due to a small loading amount of the bulk material 1, and the scope of claims is not limited by the above embodiment.

Therefore, in everyday situations, the stored form of the bulk material 1 is monitored and managed through the 3D modeling screen constructed using the location information of the distributed wireless sensors 100, and in emergency situations such as spontaneous combustion, Combining the location information of the wireless sensors 100 that detect this, it is possible to output the spontaneous ignition point as coordinates so that immediate suppression is entered at the correct point.

In addition, according to an embodiment of the present invention, a user terminal 300 receiving the bulk material 1 information, monitoring information, or modeling information from the fire detection device or the integrated control room 200 may be further included, , When the integrated control room 200 detects spontaneous ignition, the location of the spontaneous ignition occurrence point in the user terminal 300 is calculated by calculating the 3D coordinates of the spontaneous ignition occurrence point according to the location information of the wireless sensor 100. can transmit.

In this way, when an emergency situation occurs, it is possible to prevent accidents by immediately generating an alarm to the operator.

6 is a flow chart of a fire detection method using a wireless sensor loaded with bulk material according to an embodiment of the present invention.

As shown in FIG. 6, in the fire detection method using the wireless sensor 100 loaded with the bulk material 1 according to an embodiment of the present invention, the sensor dropping portion 30 is the bulk material ( A wireless sensor dropping step (S610) of dropping the wireless sensor 100 on the transfer unit 20 that moves 1) to store it in the storage 10, the wireless sensor loaded together between the loaded bulk materials 1 ( 100) measures the information of the bulk material 1 and the location information of the wireless sensor 100, and the information of the bulk material 1 measures the concentration of gas generated from the loaded bulk material 1 and An information measurement step (S620) comprising at least one of temperature, and an information transmission step (S630) of transmitting the bulk material (1) information measured by the wireless sensor 100 to the control server or user terminal 300. ), and the gas concentration above the threshold for each position within the bulk material 1 loaded based on the bulk material 1 information transmitted by the integrated control room 200 or the user terminal 300 using the control server Alternatively, an ignition monitoring step (S640) of monitoring the point where the temperature is measured may be included.

In S610, according to an embodiment of the present invention, the moving speed of the transfer unit 20 for moving the wireless sensor 100 in consideration of the arrangement interval of the wireless sensor 100 or the wireless sensor 100 dropped at one time ) can be adjusted.

In addition, in S610, the wireless sensor 100 is loaded with the loaded bulk material 1, and combining both the temperature and gas concentration information of the loaded bulk material 1 is the most accurate way to detect spontaneous ignition. . Therefore, it is preferable to include both a temperature sensor and a gas concentration measurement sensor in the sensing unit 110 of the wireless sensor 100.

In S630, the control server may include the integrated control room 200, and may mean a separate server managing communication of the integrated control room 200.

In addition, according to an embodiment of the present invention, in S640, when the temperature of the bulk material 1 and the concentration of generated gas exceed a set threshold value, an alarm may be provided visually or audibly.

When a preset temperature or gas concentration exceeds a preset value, a separate emergency alarm may be displayed on the display screen, or an alarm may be sounded.

In addition, according to an embodiment of the present invention, modeling the entire 3D shape or volume of the bulk material 1 using the bulk material 1 information transmitted by the control server or the user terminal 300 A shape modeling step (S650) may be included.

The integrated control room 200 may convert the bulk material information received in S640 or S650 or the monitoring information or modeling information calculated using the bulk material information into a database and store it in the database.

In addition to continuous management and supervision, data can be collected to test under which conditions spontaneous combustion occurs, and then it can be designed to enable safer bulk material storage (1).

In addition, according to one embodiment of the present invention, when the bulk material 1 is shipped for use, the wireless sensor 100 loaded with the bulk material 1 is placed in a screen 31 and a magnetic separator 32 ) may include a first wireless sensor collection step (S660) of first collecting the bulk material 1 by using at least one of them.

In addition, when the wireless sensor 100 that is not separated even after the S660 exists, a second number of times of removing the wireless sensor 100 by using the other one of the magnetic force of the screen 31 and the magnetic separator 32 is added. It may include a second wireless sensor recovery step (S670) to be performed.

The sensor may be retrieved using another device, and a plurality of sensor retrieval processes may be performed including the first retrieval device and the second retrieval device. Through this, all can be retrieved without the missing wireless sensor 100.

In addition, the above-described steps S610 to S670 may not proceed in chronological order, but may proceed simultaneously or in a different order.

Accordingly, FIG. 7 depicts a flow chart for wireless sensor usage and placement in accordance with one embodiment of the present invention. As shown in FIG. 7, bulk material 1 is transported for storage in storage 10. (S710), and the wireless sensor 100 may be dropped (S720) in consideration of appropriate arrangement according to the storage mode during the transfer process of the bulk material 1.

At this time, the appropriate arrangement may be determined by considering the arrangement at regular intervals between the wireless sensors 100 or the arrangement between the wireless sensors 100 and the bulk material 1.

In addition, during the storage period of the bulk material 1, various types of information may be sensed and the information may be transmitted (S730). The various types of information may include the location of the wireless sensor 100, the temperature measured at the location, and the generated gas concentration, and the information may be transmitted to the integrated control room 200 or the user terminal 300.

In addition, the bulk material 1 can be extracted using a lifter or the like for use (S740), and the wireless sensor 100 that came out together can be separated in the process of extracting the bulk material 1 ( S750). Specifically, the wireless sensor 100 loaded with the bulk material 1 is extracted together using an elevator, and then the bulk material is separated using the screen 31 or magnetic separator 32 of the sensor recovery unit 30. The real 1 and the wireless sensor 100 can be separated.

The recovered wireless sensor 100 can be charged for reuse (S760). Power can be supplied through the power supply unit 140 of the wireless sensor 100 or it can be charged by replacing the exhausted battery, and if there is a broken part, it can be repaired. It can be reused after repair. At this time, the bulk material 1 may be shipped to the shipping unit 40 for use.

According to one embodiment of the present invention, rather than monitoring only the surface temperature or surface gas concentration of the bulk material 1, the temperature inside the bulk material 1 or the gas concentration according to the amount of generated gas is measured to more accurately ignite spontaneously. It is possible to monitor whether or not spontaneous ignition occurs, and by installing the wireless sensor 100 in a position close to the bulk material 1, it is possible to compensate for missing spontaneous ignition and perform safer monitoring.

In addition, it is possible to monitor and monitor a wider range, and in general circumstances, data obtained using wireless sensor 100 information is converted into a 3D image so that real-time volume calculation is possible, so inventory management is easy and wireless sensor 100 information can be used in a variety of ways.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. You will understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: bulk material
10: storage 20: transfer unit
21: first conveyor belt 22: second conveyor belt
23: third conveyor belt 30: sensor recovery unit
31: screen 311: hall
32: magnetic separator 40: shipping unit
50: sensor drop
100: wireless sensor 110: sensing unit
120: control unit 130: communication unit
140: power unit 200: integrated control room
210: communication unit 220: monitoring unit
230: 3D modeling unit 240: database
300: user terminal

Claims (13)

A wireless sensor dropping step in which the sensor dropping unit drops the wireless sensor on the transfer unit that moves the bulk material to be stored in the storage;
A wireless sensor loaded together between the loaded bulk materials measures the information of the bulk materials and the location information of the wireless sensor, and the information of the bulk materials is the concentration and temperature of gas generated from the loaded bulk materials. Information measuring step that includes at least one of;
an information transmission step of transmitting the bulk material information measured by the wireless sensor to a control server or a user terminal; and
An ignition monitoring step of monitoring a point where a gas concentration or temperature above a threshold value is measured for each position inside the loaded bulk material based on the bulk material information transmitted by the integrated control room or user terminal.
A fire detection method using wireless sensors loaded with bulk materials. According to claim 1,
A shape modeling step of modeling the entire 3D shape or volume of the bulk material using the bulk material information transmitted by the integrated control room or the user terminal;
A fire detection method using wireless sensors loaded with bulk materials. According to claim 1,
A first wireless sensor collection step of first collecting the wireless sensor loaded with the bulk material when the bulk material is shipped for use by separating it from the bulk material using a first recovery device;
A fire detection method using wireless sensors loaded with bulk materials. According to claim 3,
a second wireless sensor recovery step of additionally performing a second recovery of removing the wireless sensor using a second recovery device when the unseparated wireless sensor still exists after the first wireless sensor recovery step; Including more,
A fire detection method using wireless sensors loaded with bulk materials. The method of claim 1, wherein the wireless sensor dropping step,
Adjusting the moving speed of the transfer unit for moving the wireless sensor or the number of wireless sensors dropped at one time in consideration of the arrangement interval of the wireless sensor,
A fire detection method using wireless sensors loaded with bulk materials. According to any one of claims 1 to 5,
In the ignition monitoring step, when the temperature of the bulk material and the generated gas concentration exceed a set threshold, an alarm is provided visually or audibly.
A fire detection method using wireless sensors loaded with bulk materials. A plurality of wireless sensors including a sensing unit that measures at least one of the gas concentration and temperature of the bulk material, a communication unit that transmits the bulk material information measured by the sensing unit, and a control unit that manages the operation of the wireless sensor. ;
A sensor dropping unit for dropping the wireless sensor onto a transfer unit for transferring bulk material; and
A sensor recovery unit that separates and collects the wireless sensor loaded with the bulk material from the bulk material transported for shipment;
Fire detection device using wireless sensors loaded with bulk materials. According to claim 7,
The sensing unit includes at least one of a temperature detection sensor, a gas detection sensor, a GPS sensor, and a beacon, and has a built-in rechargeable battery,
Fire detection device using wireless sensors loaded with bulk materials. According to claim 8,
The wireless sensor has an enclosure surrounding a built-in sensing unit, a communication unit, and a control unit, and the enclosure is made of a metal material.
Fire detection device using wireless sensors loaded with bulk materials. According to claim 7,
The sensor recovery unit is at least one of a screen or a magnetic separator using magnetic force,
Fire detection device using wireless sensors loaded with bulk materials. According to claim 7,
The sensor recovery unit includes a plurality of recovery devices,
Fire detection device using wireless sensors loaded with bulk materials. The fire detection device according to any one of claims 7 to 11;
Based on the bulk material information received from the fire detection device, whether the temperature or gas concentration of the bulk material exceeds a threshold value is detected to monitor whether or not a fire occurs, or according to the location information of the distributed wireless sensors. Including an integrated control room that models the entire 3D shape or volume of the loaded bulk material,
Fire detection system using wireless sensors loaded with bulk materials. According to claim 12,
Further comprising a user terminal receiving the bulk material information, monitoring information, or modeling information from the fire detection device or the integrated control room,
When the integrated control room detects spontaneous ignition, the three-dimensional coordinates of the spontaneous ignition occurrence point are calculated according to the location information of the wireless sensor and the location of the spontaneous ignition occurrence point is transmitted to the user terminal.
Fire detection system using wireless sensors loaded with bulk materials.

Images