KR102375438B1 - Power Distribution Cable' Temperature and Fire Monitering System of Underground Power Cable - Google Patents

Abstract

The present invention relates to a distribution cable temperature and fire monitoring system of an underground distribution line. The distribution cable temperature and fire monitoring system of the underground distribution line is based on a load current of an underground distribution line installed in an underground common conduit. Therefore, the distribution cable temperature and fire monitoring system of the underground distribution line assigns an identification symbol to a cable so as to immediately determine which point of the distribution line, in which a cable with an abnormal temperature is located, is.

Description

Power Distribution Cable' Temperature and Fire Monitoring System of Underground Power Cable

The present invention relates to temperature and fire monitoring of underground distribution cables buried underground. When the distribution line is installed on the ground, it is convenient to install it underground because it interferes with new construction or traffic flow. However, since the underground distribution cable laid in the underground pipeline is expensive to install inside the underground pipeline and requires a lot of accident recovery cost in case of an accident, thorough management is necessary before the accident.

The prior art related to the present invention is disclosed in Republic of Korea Patent Publication No. 10-2018-0047686 (published on May 10, 2018). 1 is a flow chart of the conventional underground cable junction box temperature measurement method. The conventional underground cable junction box temperature measurement method in FIG. 1 includes the steps of acquiring temperature data (S100), outputting an image (S200), extracting the temperature data of the selected area (S300), and the highest and lowest temperature and outputting a difference value of ( S400 ). The step of acquiring the temperature data (S100) is a step of measuring the distribution of heat emitted from the three-phase underground power transmission cable junction box and acquiring the temperature data. The thermal image measurement unit 11 may photograph a three-phase underground power transmission cable junction box using a thermal image sensor, process the photographed image data to signal, convert each pixel into temperature data, and then output the image. The temperature data may be stored in the memory unit 13 through the control unit 12 . The image output step ( S200 ) is a step of converting the temperature data output from the thermal image measuring unit 11 into an image and outputting the converted temperature data to the display unit 14 . The output image may be a thermogram in which the temperature distribution is displayed in black and white shades or colors. An embodiment will be described as an example in which the temperature distribution is displayed in color. In addition, the user interface screen 100 is between the image area 110 in which a thermal image is displayed, the temperature display area 120 in which temperature information such as the maximum temperature, minimum temperature and average temperature of the selected area selected by the user is displayed and the selected area. It may include a temperature difference display area 130 in which the temperature difference is displayed. The step of extracting the temperature data of the selected area ( S300 ) is a step of extracting the temperature data of the area selected by the user from among the thermal images displayed on the image area 110 . When the user selects a part of the image displayed on the image area 110 through the input device, the control unit 12 extracts temperature data corresponding to the selected area from among the temperature data stored in the memory unit 13 . 4 is a case in which three selection areas are selected, and selection areas 1-3 (111, 112, 113) may include images of junction boxes to which power transmission cables on a, b, and c are connected, respectively. The number of selection areas can be arbitrarily increased or decreased by the user. In addition, although the selection area is defined as a rectangle in FIG. 4 , the present invention is not limited thereto, and may be defined as a polygon or a circle. The step of outputting the difference value between the highest temperature and the lowest temperature (S400) is to display the highest temperature, the lowest temperature and the average temperature among the temperature data corresponding to each of the selection areas 1-3 (111, 112, 113) on the user interface screen ( 100) is the step indicated. The control unit 12 retrieves the temperature data of the selection areas 1-3 (111, 112, 113), extracts the highest temperature, the lowest temperature, and the average temperature among the respective temperature data, and displays it in one area of the interface screen 100 . can be displayed In addition, the control unit 12 may display the first temperature difference values Δ1, Δ2, Δ3 that are the difference values between the highest temperature and the lowest temperature on one region of the user interface screen 100, and the image region 110 ), regions having the highest temperature (HT1, HT2, HT3) and regions having the lowest temperature (LT1, LT2, LT3) may be displayed. Therefore, the user can easily grasp the highest temperature, the lowest temperature, the average temperature, and the first temperature difference values (Δ1, Δ2, Δ3) among the temperature data corresponding to each selected area through the user interface screen 100 , , from this, it is possible to easily compare the temperature of the underground power transmission cable junction box of each phase. In addition, the control unit 12 refers to the reference value stored in the memory unit 13, determines whether the first temperature difference value (Δ1, Δ2, Δ3) exceeds the reference value, the first temperature difference value (Δ1, Δ When 2, Δ3) exceeds the reference value, a warning window pops up on the user interface screen 100 or a user identification code such as a phone number or email address of the user stored in the memory unit 13 is displayed. With reference to it, a short message service (SMS) or an e-mail may be transmitted. Accordingly, the user can receive an alarm through SMS or (short message service) or e-mail when a temperature difference exceeding the reference value occurs in the underground power transmission cable junction box.

The prior art configured as described above can manage the change state of the temperature of the cable connection point, but there is a problem in that the temperature of the connection point cannot be considered variable according to the magnitude of the current flowing on each of the distribution cables. In addition, in the present invention, since the infrared camera is always driven, there is a big problem in wasting power of the infrared camera. In addition, the prior art as described above has a problem in that it is not possible to know which of the three phases of the cable determined as the temperature abnormality even by monitoring the temperature abnormality signal. An object of the present invention to solve the above problems is to determine whether the temperature of the cable connection point is abnormal, not based on the temperature difference by phase, but based on the average of the measured accumulated temperature information of the cables, and also to measure the load current flowing by phase This is to determine whether the distribution cable connection point is abnormal based on the temperature information to be considered. Another object of the present invention is to remotely activate the infrared camera module only for a set time by remotely switching the mode of the infrared camera, and to measure and transmit the temperature. Another object of the present invention is to give an identification symbol of a cable photographed by an infrared camera so that it can be determined immediately on which point on which distribution line the cable with an abnormal temperature is located.

The distribution cable temperature and fire monitoring system of the underground distribution line of the present invention having the above purpose is the management server specific information, the name of the distribution line, and each infrared camera unique information and location information matching the corresponding distribution line, matching the corresponding distribution line Based on the unique information and location information of the fire extinguishing module that Stores the temperature difference information for each reference phase at the junction point centered on the same location junction of the T-phase, receives and stores the R-phase S-phase T-phase current information of the distribution line periodically from the management server, and activates the camera from the manager smart terminal Receives information and transmits it to each infrared camera module, receives and stores unique information and location information, distribution line connection point image information, connection point information and connection point temperature information from the infrared camera module, the received load current of each phase, corresponding R-phase longitudinal direction of the distribution line based on the name of the distribution line, unique information and location information of the infrared camera matching the distribution line, image information of each infrared camera connection point, connection point information for each phase and connection point temperature information, and time information Connection point information, S-phase longitudinal connection point information, and T-phase longitudinal connection point information are converted into a DB and stored in the length and temperature information DB of the distribution line, and the name information of the distribution line and the corresponding infrared matching the distribution line Based on camera-specific information and location information, current information for each phase of the distribution line, R-phase, S-phase, and T-phase same location of the distribution line, the connection point information, temperature information, and time information are converted into a DB and stored in the connection point temperature information DB. It is stored, and based on the length temperature information DB, it is determined whether the temperature of each connection point in the longitudinal direction of each phase of the distribution line is equal to or higher than the reference set temperature of the longitudinal connection point based on a preset load current for each phase, and if it is above , the corresponding distribution line Name, specific information and location information of the infrared camera, video information of the connection point in the longitudinal direction taken by the infrared camera, information of the connection point in the longitudinal direction, temperature information of the connection point in the longitudinal direction, time information, and primary temperature alarm to the management server transmit, and based on the junction temperature information DB, it is determined whether the phase-to-phase temperature difference of the junction point at the same location based on the load current for each phase is greater than or equal to the set reference phase temperature difference. The location information and unique information of the infrared camera, image information of the same location access point captured by the infrared camera, information on the same location access point point, temperature information for each phase of the same location access point point, time information, and primary temperature alarm are sent to the management server transmits, receives fire detection information, unique information and location information from the fire extinguishing module, and receives the received fire extinguishing module unique information and location information, fire detection information, A control module that transmits junction video information, corresponding junction point information, junction point temperature information, time information, and secondary fire alarm to the management server, and is installed at regular intervals in the longitudinal direction around the distribution cable junction of the underground common duct. Stores camera location information and unique information, name of each power distribution cable, R-phase, S-phase, and T-phase connection point information based on the corresponding infrared camera, and receives activation information from the control module to switch the camera from sleep mode to operation mode Infrared camera module that converts and shoots the connection point of the corresponding distribution cable and periodically transmits its own information, connection point image information, connection point information and connection point temperature information to the control module, and the control module's unique information and location information Receives R-phase, S-phase, and T-phase current information of the distribution line in real time from the substation switchboard of the distribution line and periodically transmits the R-phase, S-phase, and T-phase current information of the distribution line to the control module and the corresponding power distribution from the control module Line name, specific information and location information of the corresponding infrared camera module of the corresponding distribution line, image information of the corresponding connection point in the longitudinal direction taken by the infrared camera, information on the corresponding connection point in the longitudinal direction, temperature information of the corresponding connection point in the longitudinal direction, time information, and Receives the primary temperature alarm and receives the name information of the distribution line from the control module, the infrared camera specific information and location information of the distribution line, the image information of the same location connection point captured by the infrared camera, and the same location access point information , Receives phase-specific temperature information, time information, and primary temperature alarm of the same location junction point, and receives the received distribution line name, the corresponding infrared camera module unique information and location information of the distribution line, and the length of the infrared camera taken Transmits video information of the corresponding connection point in the direction, information on the corresponding connection point in the longitudinal direction, temperature information of the corresponding connection point in the longitudinal direction, time information, and the primary temperature alarm to the manager smart terminal, and the name information of the corresponding distribution line received from the control module; Infrared camera specific information and location information of the corresponding distribution line, image information of the same location connection point captured by the infrared camera, information on the same location access point point, temperature information for each phase of the same location access point point, time information, primary temperature alarm to the manager's smart terminal, and from the control module, unique information and location information, fire extinguishing module specific information and location information, fire detection information, connection point image information captured by the infrared camera module in the position closest to the fire extinguishing module, the corresponding Receive access point information, access point temperature information, time information, and secondary fire alarm, and receive control module specific information and location information, fire extinguishing module specific information and location information, fire detection information, and A management server that transmits video information of the connection point captured by the infrared camera module of the location, information on the connection point and temperature information of the connection point, time information, and the secondary fire alarm to the manager's smart terminal; It stores the information and transmits the camera activation information to the control module, and indicates the temperature difference between the connection point points in the longitudinal direction for each phase from the management server. Receive information, video information of the corresponding connection point in the longitudinal direction taken by the infrared camera, information on the corresponding connection point in the longitudinal direction, temperature information of the corresponding connection point in the longitudinal direction, time information, and primary temperature alarm Name information of the distribution line, unique information and location information of the infrared camera of the distribution line, image information of the same location connection point captured by the infrared camera, information on the same location connection point point, phase classification of the same location connection point point Receive temperature information, time information, and primary temperature alarm, and control module-specific information and location information, fire-extinguishing module-specific information and location information, fire detection information, and an infrared camera module located closest to the fire-extinguishing module from the management server The manager smart terminal that receives and provides the captured junction video information, the junction point information and the junction point temperature information, time information, and secondary fire alarm, detects a fire in case of a fire in the underground common pit, and stores the extinguishing agent using induction means It is characterized in that it is composed of a fire extinguishing module that destroys the container to foam the extinguishing agent and transmits fire detection information and unique information to the control module.

The distribution cable monitoring method and system of the underground distribution line of the present invention configured as described above has the effect of tracking and managing distribution line temperature information for each phase of the underground distribution line, and when the temperature of the distribution line for each phase is determined to be abnormal, abnormal distribution It has the effect of sending track location information to the manager so that he or she can take action quickly. In addition, the present invention has the effect of accurately grasping whether the distribution line has deteriorated based on the temperature information based on the change in the set reference temperature according to the daily and seasonal temperature changes in consideration of the load current. In addition, according to the present invention, an alarm is issued when the temperature is higher than the reference set temperature, and a second alarm is issued when there is a possibility of a fire, and in case of a fire, extinguishing powder is sprayed to extinguish the fire. In addition, the present invention has the effect that it is possible to determine whether the temperature in the longitudinal direction of the distribution line is abnormal due to the partial deterioration of the underground distribution cable in consideration of the load current.

1 is a flow chart of a conventional underground cable junction box temperature measurement method;
Figure 2 is a control flow chart of the first embodiment of the present invention the distribution cable temperature monitoring method of the underground distribution line,
Figure 3 is a control flow chart of the second embodiment of the present invention the distribution cable temperature and fire monitoring method of the underground distribution line,
Figure 4 is a configuration diagram of the first embodiment of the present invention the distribution cable temperature monitoring system of the underground distribution line,
5 is a configuration diagram of a second embodiment of a distribution cable temperature and fire monitoring system of an underground distribution line of the present invention;
6 is an exemplary view of a longitudinal junction point for each phase of a distribution line applied to the present invention;
7 is an exemplary view of the same location connection point for each phase of the distribution line applied to the present invention;
8 is a configuration diagram schematically showing a state in which the fire extinguishing module is installed on the upper part of the distribution cable of the underground common area applied to the present invention;
9 is a block diagram of a fire extinguishing module applied to the present invention;
10 is a configuration diagram schematically showing the rear surface of the extinguishing powder capsule of the fire extinguishing module.

A method and system for monitoring a distribution cable of an underground distribution line having the above object will be described with reference to FIGS. 2 to 10 as follows.

Figure 2 is a control flow chart of the first embodiment of the present invention the distribution cable temperature monitoring method of the underground distribution line. 2, the first embodiment of the method for monitoring the temperature of the distribution cable of the underground distribution line of the present invention in the present invention is installed on the support inside the common pit and provides a control module for controlling a plurality of infrared cameras, the management server specific information, the name of the distribution line, and the corresponding distribution line Based on the unique information and location information of each infrared camera matching the R-phase, S-phase, and T-phase lengthwise connection point information of the distribution line based on the load current flowing in the distribution line, the reference set temperature information and the R-phase, S-phase , a step (S11) of storing the temperature difference information for each phase of the reference setting at the junction point centered on the same location junction point on the T phase, and an infrared camera installed in the longitudinal direction around the connection point of the distribution cable disposed in the common sphere. Storing camera-specific information and location information, name of each distribution cable, R-phase, S-phase, and T-phase connection point information based on the corresponding infrared camera in the camera module to be controlled (S12); Step (S13) of the management server receiving the R-phase, S-phase, and T-phase current information in real time from Step (S14) of the manager smart terminal storing the unique information of the control module transmitting camera activation information to the control module, and the control module receiving the activation information transmitting the activation information to each corresponding infrared camera module (S15) ), each of the infrared cameras receiving the activation information is switched from the sleep mode to the operation mode (S16), and each infrared camera module installed in the corresponding distribution line takes a picture of the connection point of the distribution cable, and its own information, connection point Transmitting image information, designated connection point information and connection point temperature information to the control module periodically (S17); Load current by phase, infrared camera unique information, location information, time information Storing the R-phase longitudinal junction point information, S-phase longitudinal junction point information, and T-phase longitudinal junction point information of the distribution line based on ) and the control module based on the infrared camera unique information and location information, the load current information for each phase of the distribution line, the R-phase, S-phase, and T-phase same location connection point information, temperature information, and time information of the distribution line A step (S19) of converting into a DB and storing the junction temperature information DB, the control module based on the length temperature information DB, the temperature of each junction point in the longitudinal direction of each phase of the distribution line based on a preset load current for each phase A step (S20) of determining whether or not the directional connection point point reference set temperature is higher than the set temperature, and if it is abnormal, the control module determines the name of the distribution line, the infrared camera specific information and location information, and each connection point image in the longitudinal direction taken by the infrared camera Transmitting information, the corresponding longitudinal junction point information, and longitudinal junction point temperature information to the management server (S21), and when the management server received the junction point temperature in the longitudinal direction of the distribution line is equal to or greater than the junction point reference set temperature Transmitting the name of the distribution line, the corresponding infrared camera location information and unique information, the longitudinal connection point image information photographed by the corresponding infrared camera, the longitudinal connection point information, and the longitudinal connection point temperature information to the manager smart terminal (S22) And, a step (S23) of the control module determining whether the phase-to-phase temperature difference of the connection point point at the same location based on the load current for each phase based on the phase-by-phase load current based on the connection point temperature information DB is equal to or greater than the set reference phase temperature difference (S23); The control module stores the name information of the distribution line, location information and unique information of the infrared camera, image information of the same-location connection point captured by the infrared camera, information on the same-location connection point, and temperature information for each phase of the same-location connection point. In the step (S24) of transmitting to the management server, the management server receives the name information of the distribution line when the temperature difference for each phase is greater than or equal to the temperature difference between the reference phases based on the load current at the same location junction point of the distribution line received; Transmitting the infrared camera specific information and location information, the same location access point image information captured by the infrared camera, the same location access point information, and temperature information for each phase of the same location access point to the manager smart terminal (S25). it is characterized by The control module may be configured separately for each distribution line, and the control module of the corresponding distribution line may be configured to control an infrared camera module installed at a cable connection point of the corresponding distribution line. In the above, the longitudinal connection point means, for example, if there is Gangnam D/L, Gangnam D/L consists of R phase, S phase, and T phase, and the longitudinal connection point means all cable connection point points existing in R phase. In addition, it means the cable connection point points existing in the S phase, and the cable connection point points existing in the T phase are respectively represented as connection point points in the longitudinal direction. Referring to FIG. 6, connection points P11, P12, P13, etc. are R It is the cable connection point in the longitudinal direction of the phase. In addition, in the above, the same location connection point is a cable connection point when cables are connected at the same location in R phase, S phase and T phase in Gangnam D/L as the same location cable connection point. Referring to FIG. 6 , P11, P21, P31 This can be a co-located connection point. In addition, if it is less than in the steps S20 and S23, the control module determines the temperature information of the corresponding distribution cable connection point as normal and terminates it.

Figure 3 is a control flow chart of the second embodiment of the present invention the distribution cable temperature and fire monitoring method of the underground distribution line. In FIG. 3, the second embodiment of the method for monitoring the temperature and fire of the distribution cable of the underground distribution line of the present invention includes the steps of registering and storing the location information and unique information of the control module in the management server (S31); In the control module that controls multiple infrared cameras, the management server's unique information, the name of the distribution line, the unique information and location information of each infrared camera matching the corresponding distribution line, and the unique information of the fire extinguishing module matching the corresponding distribution line Based on the location information, the load current for each phase flowing in the distribution line, the reference set temperature information of the connection points in the longitudinal direction of each R, S, and T phase of the distribution line, and the same location connection points of the R, S, and T phases as the center Storing the reference phase-specific temperature difference information based on the phase-by-phase load current at the connection point point (S32), and camera-specific information in the infrared camera module installed in the longitudinal direction around the connection point of the distribution cable disposed in the common sphere and location information, the name of the distribution cable, and the R-phase, S-phase, and T-phase connection point information based on the corresponding infrared camera (S33), and the R-phase, S-phase, T-phase from the substation switchboard of the distribution line The management server receiving the current information in real time transmits and stores the R-phase, S-phase, and T-phase current information of the distribution line periodically to the control module (S34), and the control module-specific information of the distribution line A step (S35) of the stored manager smart terminal transmitting camera activation information to the control module, a step (S36) of the control module receiving the activation information transmitting activation information to each corresponding infrared camera module, and the activation information Each received infrared camera module is converted from the sleep mode to the operation mode (S37), and each infrared camera module installed on the corresponding distribution line takes a picture of the connection point of the distribution cable, and its own information, connection point image information, designated connection point Transmitting point information and connection point temperature information to the control module periodically (S38); R-phase longitudinal connection point of the distribution line based on the load current for each phase received by the module, information and location information unique to each infrared camera, image information of each infrared camera connection point, connection point information for each phase, connection point temperature information, and time information Point information, S-phase longitudinal junction point information, and T-phase longitudinal junction point information are converted into a DB and stored in the length and temperature information DB of the corresponding distribution line (S39), and the control module is received for each phase of the corresponding distribution line Creating a DB based on the load current information, the infrared camera specific information and location information, the R-phase, S-phase, and T-phase same location connection point information, temperature information, and time information of the distribution line and storing it in the connection point temperature information DB ( S40) and the control module determines whether the temperature of each connection point in the longitudinal direction of each phase of the distribution line is higher than or equal to the reference set temperature of the longitudinal connection point based on the preset load current for each phase based on the length temperature information DB In step S41 and in the case of abnormality, the control module determines the name of the distribution line, unique information and location information of the infrared camera, image information of the connection point in the longitudinal direction photographed by the infrared camera, information on the connection point in the longitudinal direction, and the corresponding length direction When the connection point temperature information, time information, and the primary temperature alarm are transmitted to the management server (S42) and the temperature of the connection point in the longitudinal direction received by the management server is equal to or higher than the reference set temperature of the connection point based on the load current for each phase name of the corresponding distribution line, location information and unique information of the infrared camera of is transmitted to the manager smart terminal (S43), and the control module determines whether the phase-to-phase temperature difference of the connection point point at the same location of each phase based on the phase-by-phase load current based on the connection point temperature information DB is greater than or equal to the set reference phase temperature difference Determining step (S44), and if abnormal, the control module determines the name information of the corresponding distribution line, the corresponding infrared camera location information and unique information, the corresponding same location connection point image information captured by the corresponding infrared camera, the corresponding same location access point information, The step (S45) of transmitting the temperature information, time information, and the primary temperature alarm for each phase of the corresponding co-location junction point to the management server, and the temperature difference for each phase at the co-located junction point received by the management server is a reference based on the load current In the case of more than the temperature difference by phase, name information of the distribution line, specific information and location information of the corresponding infrared camera, image information of the same location connection point captured by the infrared camera, information on the same location connection point point, temperature information of the same location connection point point, time information, In the step of transmitting the primary temperature alarm to the manager smart terminal (S46), and when a fire occurs in the underground common pit where the distribution cable is discharged, the sensor unit of the fire extinguishing module installed at regular intervals in response to the cable connection point in the underground communal duct extinguishes a fire. A step (S47) of detecting and destroying the extinguishing agent storage container using an induction means to cause the extinguishing agent to be foamed and transmitting the fire detection information and unique information to the control module (S47), and the control module includes the unique information and location information, and the received fire detection information , fire extinguishing module unique information and location information, access point image information received from an infrared camera located closest to the fire extinguishing module, access point information and access point temperature information, secondary fire alarm, and time information to the management server Step (S48) and the management server control module unique information and location information, the infrared camera module unique information and location information, fire extinguishing module unique information and location information, the infrared camera shooting connection point image information, the connection point information and the corresponding It is characterized in that it comprises the step (S49) of transmitting the connection point temperature information, the secondary fire alarm, and time information to the manager smart terminal. In addition, when it is less than in steps S41 and S44, the control module determines that the temperature of the corresponding cable connection point is normal and terminates.

Figure 4 is a configuration diagram of the first embodiment of the present invention the distribution cable temperature monitoring system of the underground distribution line. In FIG. 4, the first embodiment of the distribution cable temperature monitoring system of the underground distribution line of the present invention shows the management server specific information, the distribution line name, and each infrared camera unique information and location information matching the corresponding distribution line, the information flowing in the distribution line Based on the load current, each R-phase, S-phase, and T-phase longitudinal connection point reference set temperature information and the reference phase temperature at the connection point point centered on the same location connection point of R phase, S phase, and T phase The difference information is stored, and the R-phase S-phase T-phase current information of the distribution line is periodically received and stored from the management server, and the camera activation information is received from the manager smart terminal and transmitted to each infrared camera module, and the infrared camera module Receives and stores unique information, location information, junction image information, junction point information and junction point temperature information from , R-phase longitudinal connection point information, S-phase longitudinal connection point information, T-phase longitudinal connection point point of the distribution line based on the load current for each phase of the distribution line, infrared camera unique information and location information, and time information The information is converted to DB and stored in the length and temperature information DB of the distribution line, and the received infrared camera unique information and location information, current information for each phase of the distribution line, and the R phase, S phase, and T phases of the distribution line are the same location connection points. Based on point information, temperature information, and time information, it is converted into a DB and stored in the junction temperature information DB, and based on the length temperature information DB, the load current for each phase in which the temperature of each junction point in the longitudinal direction of each phase of the distribution line is preset It is determined whether the temperature is higher than the standard set temperature of the longitudinal connection point based on the basis, and if it is abnormal, the name of the distribution line, the specific information and location information of the infrared camera, image information of each connection point in the longitudinal direction captured by the infrared camera, the corresponding length direction connection point Transmits data information, longitudinal junction point temperature information, and time information to the management server, and based on the junction temperature information DB, based on the load current for each phase, the temperature difference of each phase at the same location of each phase is greater than the reference phase temperature difference set It is determined whether or not it is recognized, and if it is an error, name information of the corresponding distribution line, location information and unique information of the corresponding infrared camera, image information of the same location connection point photographed by the infrared camera, information on the same location access point point, the corresponding same location access point point The control module 200 that transmits the temperature information and time information for each phase to the management server, and the camera location information, unique information, and name of each distribution cable are installed at regular intervals in the longitudinal direction around the distribution cable connection point of the underground common pit. , saves R-phase, S-phase, and T-phase connection point information based on the corresponding infrared camera, receives activation information from the control module, switches the camera from sleep mode to operation mode, shoots the connection point of the corresponding distribution cable, An infrared camera module 300 that periodically transmits its own information, junction image information, junction point information and junction point temperature information to the control module, and the R phase, S phase, T of the distribution line from the substation switchboard of the distribution line Receives phase current information in real time and periodically transmits R-phase, S-phase, and T-phase current information of the corresponding distribution line to the control module. The name of the distribution line when the temperature is higher than the standard set temperature for the connection point in the longitudinal direction, the information and location information of the infrared camera module of the distribution line Receives point information and lengthwise connection point point temperature information, and the received distribution line name, the corresponding infrared camera module unique information and location information of the corresponding distribution line, image information of each connection point in the longitudinal direction photographed by the corresponding infrared camera, Transmits the corresponding longitudinal junction point information, longitudinal junction point temperature information, and time information to the manager smart terminal, and when the difference in the temperature information of the junction point at the same location on the distribution line from the control module is greater than or equal to the reference phase temperature difference based on the load current Name information of the corresponding distribution line, unique information and location information of the corresponding infrared camera of the corresponding distribution line, image information of the same location connection point captured by the infrared camera, information on the same location connection point point, temperature information of each phase of the same location connection point point received, name information of the distribution line, unique information and location information of the infrared camera of the distribution line, image information of the same location connection point captured by the infrared camera, information on the same location access point point, the same location access point The management server 400 transmits the phase temperature information of the point to the manager smart terminal, and the camera activation information is transmitted to the control module as it stores unique information of the control module, and the temperature of the connection point in the longitudinal direction for each phase from the management server The name of the distribution line indicating the difference, the specific information and location information of the infrared camera module of the distribution line, the image information of each connection point in the longitudinal direction taken by the infrared camera, the information of the connection point in the longitudinal direction, and the temperature information of the connection point in the longitudinal direction Name information of the distribution line that receives and provides the difference in temperature information of the same location connection point for each phase, unique information and location information of the corresponding infrared camera of the distribution line, image information of the same location connection point photographed by the infrared camera, the same It is characterized in that it is composed of a manager smart terminal 500 for receiving location access point information and phase-specific temperature information of the corresponding same location access point point. In addition, the infrared camera may be installed at the same location connection point of the R-phase, S-phase, and T-phase cables of the distribution line or for each cable connection point of each phase.

5 is a configuration diagram of a second embodiment of a distribution cable temperature and fire monitoring system of an underground distribution line according to the present invention. 5, the second embodiment of the distribution cable temperature and fire monitoring system for the underground distribution line of the present invention in FIG. 5 shows the management server specific information, the name of the distribution line, and each infrared camera unique information and location information matching the corresponding distribution line, the corresponding distribution line Based on the unique information and location information of the fire extinguishing module matching the R-phase, S-phase, and T-phase lengthwise connection point information of the distribution line based on the load current flowing in the distribution line, the set temperature information and the R-phase, S Stores the temperature difference information for each reference phase at the junction point centered on the same location junction of the phases and T phases, and periodically receives and stores the R-phase S-phase T-phase current information of the distribution line from the management server, and stores it from the manager smart terminal Receives camera activation information and transmits it to each infrared camera module, receives and stores unique information and location information, distribution line connection point image information, connection point information and connection point temperature information from the infrared camera module, and receives and stores the received phase load for each phase R of the distribution line based on the current, the name of the distribution line, the infrared camera unique information and location information matching the distribution line, the image information of each infrared camera connection point, the connection point information for each phase and the connection point temperature information, and time information Phase longitudinal junction point information, S-phase longitudinal junction point information, and T-phase longitudinal junction point information are converted into DB and stored in the length and temperature information DB of the corresponding distribution line, and the corresponding distribution line name information and the corresponding distribution line are matched. Based on the unique information and location information of the corresponding infrared camera, the current information for each phase of the distribution line, the R-phase, S-phase, and T-phase same location connection point information, temperature information, and time information of the distribution line It is stored in the information DB, and based on the length temperature information DB, it is determined whether the temperature of each junction point in the longitudinal direction of each phase of the distribution line is greater than or equal to the set temperature of the longitudinal junction point based on the preset load current for each phase, , if more than Management server for name of distribution line, specific information and location information of the infrared camera, video information of the connection point in the longitudinal direction taken by the infrared camera, information on the connection point in the longitudinal direction, temperature information of the connection point in the longitudinal direction, time information, and primary temperature alarm , and based on the junction temperature information DB, it is determined whether the phase-to-phase temperature difference of the junction point at the same location based on the load current for each phase is equal to or greater than the set reference phase temperature difference. , the corresponding infrared camera location information and unique information, the video information of the same location access point captured by the infrared camera, the same location access point point information, the phase temperature information of the same location access point point, time information, and primary temperature alarm management server and receives fire detection information, unique information and location information from the fire extinguishing module, and the received fire extinguishing module unique information and location information, fire detection information, and an infrared camera module located closest to the fire extinguishing module are photographed The control module 200-1 that transmits video information of one connection point, the corresponding connection point information, the connection point temperature information, time information, and the secondary fire alarm to the management server, and the distribution cable connection point of the underground common pit in the longitudinal direction at the upper part It is installed at regular intervals and stores camera location information, unique information, name of each distribution cable, R-phase, S-phase, and T-phase connection point information based on the corresponding infrared camera, and receives activation information from the control module to control the camera. Infrared camera module (300-1) that switches from sleep mode to operation mode, photographs the connection point of the corresponding distribution cable, and periodically transmits its own information, connection point image information, connection point information, and connection point temperature information to the control module And, it stores the unique information and location information of the control module, and receives the R-phase, S-phase, and T-phase current information of the distribution line from the substation switchboard of the distribution line in real time, and receives the R-phase, S-phase, Transmits phase T current information to the control module periodically and, from the control module, the name of the distribution line, the infrared camera module unique information and location information of the distribution line, the image information of the connection point in the longitudinal direction taken by the infrared camera, the connection point information in the longitudinal direction, the connection point in the longitudinal direction Receives point temperature information, time information, and primary temperature alarm, and from the control module the name information of the distribution line, the infrared camera specific information and location information of the distribution line, and the image information of the same location connection point captured by the infrared camera , the same location access point information, phase temperature information of the same location access point point, time information, and primary temperature alarm are received, the received distribution line name, the corresponding infrared camera module unique information and location information of the distribution line, The corresponding infrared camera sends the video information of the corresponding connection point in the longitudinal direction, the corresponding connection point information in the longitudinal direction, the temperature information of the corresponding connection point in the longitudinal direction, time information, and the primary temperature alarm to the manager smart terminal, and also transmits the information received from the control module. Name information of the distribution line, unique information and location information of the infrared camera of the distribution line, image information of the same-location connection point captured by the infrared camera, information on the same-location connection point, temperature information of each phase of the connection point at the same location, Time information and primary temperature alarm are transmitted to the manager's smart terminal, and from the control module, unique information and location information, fire extinguishing module unique information and location information, fire detection information, and an infrared camera module located closest to the fire extinguishing module Receives the captured junction video information, the junction point information and the junction point temperature information, time information, and secondary fire alarm, and receives the received control module specific information and location information, fire extinguishing module specific information and location information, fire detection information, The video information of the connection point captured by the infrared camera module in the position closest to the fire extinguishing module, the connection point information and the connection point temperature information, time information, and secondary fire alarm are transmitted to the manager smart terminal. transmits camera activation information to the control module as storing unique information of the management server 400-1 and the control module, and indicates the temperature difference between the connection point points in the longitudinal direction for each phase from the management server, and the name of the distribution line , Infrared camera module-specific information and location information of the distribution line, image information of the connection point in the longitudinal direction taken by the infrared camera, information on the connection point in the longitudinal direction, temperature information of the connection point in the longitudinal direction, time information, primary temperature It receives an alarm and provides the difference in the temperature information of the connection point for each phase. Name information of the distribution line, information and location information of the corresponding infrared camera of the distribution line, image information of the same location of the connection point captured by the infrared camera, the corresponding Receives the same location access point information, phase temperature information of the same location access point point, time information, and primary temperature alarm, and receives control module specific information and location information, fire extinguishing module specific information and location information, and fire detection information from the management server , Manager smart terminal (500-1) that receives and provides access point image information captured by an infrared camera module located closest to the fire extinguishing module, the access point information and the access point temperature information, time information, and secondary fire alarm and a fire extinguishing module (100-1) that detects a fire when a fire occurs in an underground pit, breaks the extinguishing agent storage container using an induction means to release the extinguishing agent, and transmits the fire detection information and unique information to the control module it is characterized by In the above, the fire extinguishing module may be installed at each connection point for each phase of the distribution line, or may be installed at each connection point at the same location on R, S, and T.

6 is an exemplary view of a longitudinal connection point for each phase of a distribution line applied to the present invention. In FIG. 6, the longitudinal connection point for each phase of the distribution line applied to the present invention is P11, which is a longitudinal connection point for each phase, for example, R phase with respect to the R phase, S phase, and T phase of the underground distribution cable installed in the underground tunnel. , P12, P13, ... The length at which the infrared camera captures the temperature information of the junction points of P1n, and the measured temperature of the longitudinal junction points of the R phase, P11, P12, P13, etc., is based on the load current It is to determine whether or not the set temperature is higher than the reference point of the direction connection point. For example, when the load current of the underground distribution line is R-phase 115A, S-phase 120A, and T-phase 130A, the measurement temperature of the connection point in the longitudinal direction of the infrared camera module is 36.5℃ at P11 and at P12. If it is 37°C, measured at 40°C in P13 and the reference set temperature of the connection point based on the load current of 115 A in R phase is 36°C to 37°C, then the longitudinal connection point points P11 and P12 in R phase are judged to be normal, but the R phase The longitudinal junction point P13 is judged to be over temperature, so that the deterioration of the R phase junction point P13 can be judged.

7 is an exemplary view of the same location connection point for each phase of the distribution line applied to the present invention. In FIG. 7, the distribution line co-located junction point applied to the present invention is, for example, the R-phase, S-phase, and T-phase co-located junction of the R-phase, S-phase, and T-phase of the underground distribution cable installed in the underground common duct. The infrared camera captures the temperature information of the junction points of the points P11, P21, P31, ... Pn1, and measures P11, P21, P31 ..., etc. It is to determine whether the temperature is higher than the reference set temperature of the same location junction point based on the load current. For example, when the load current of the underground distribution line is R-phase 115A, S-phase 120A, and T-phase 130A, the infrared camera module detects the same location of the R-phase, S-phase, and T-phase connection point measurement temperature at P11. If it is 36.5°C, P21 is 40°C, P31 is 37.5°C, and the reference phase temperature difference based on the load currents of R, S, and T phases is set to 2.5°C, then R and T phases at the same location junction point The temperature difference between the same location junction point and the same location junction point of S and T phases is within the set range, but the temperature difference between the R and S phase co-location junction points is 3.5℃, which is 2.5℃ or more for each phase, so the corresponding same location junction point P11 It is necessary to check the connection points of , P21 and P31. As described above, according to the present invention, it is possible to accurately determine the deterioration state of the connection point of the underground distribution cable even in a situation where an unbalanced load current for each R-phase, S-phase and T-phase is applied.

8 is a configuration diagram schematically showing a state in which a fire extinguishing module is installed on the upper portion of the distribution cable of the underground common duct applied to the present invention. 8A is a block diagram showing the state before the fire extinguishing module operates at the R-phase P11 connection point of the underground distribution cable shown in FIG. 7, and FIG. 8B is the R-phase P11 connection point of the underground distribution cable shown in FIG. At a point, it is a block diagram showing the state in which the fire extinguishing module is operated, FIG. 9 is a block diagram showing the detailed configuration of the fire extinguishing module shown in FIG. 8, and FIG. 10 is the extinguishing powder of the fire extinguishing module shown in FIG. It is a block diagram schematically showing the back surface of the capsule.

8A to 10 , the underground distribution line of the underground common area applied to the present invention is configured to include a fire extinguishing module. In addition, the fire extinguishing module 100 is selectively disposed at the cable connection point of each phase of the underground common underground distribution cable, and is disposed one at the three-phase same location connection point or one at each connection point for each phase, etc. Underground distribution cable installation structure of the underground common area A fire extinguishing module may be optionally installed according to the situation of the site.

For example, the fire extinguishing module 100 may be mainly installed in areas vulnerable to heat dissipation, such as a cable connection point, or areas with a high frequency of fire accidents. Hereinafter, an area or configuration requiring installation of the fire extinguishing module 100 is referred to as a "fire extinguishing area", and in this embodiment, the installation of the fire extinguishing module 100 around the connection point of the distribution cable will be described as an example. Here, the fire extinguishing module 100 may include the extinguishing powder capsule 110 , the pressure increasing means 120 , and the sensor unit 130 including a memory and a communication module.

In the above, the extinguishing powder capsule 110 is filled with extinguishing powder therein. And, the material of the digestive powder capsule 110 may be made of an elastic material that elastically stretches so that the outer shape is deformed. For example, the digestive powder capsule 110 may be made of a flame-retardant nylon material or a silicone material. In addition, the extinguishing powder capsule 110 may be made of a material containing at least one of a non-combustible material, a flame-retardant material, and a semi-incombustible material. For example, the extinguishing powder capsule 110 is disposed around one cable connection point in the extinguishing area, , as the volume increases by the pressure increasing means 120 and plastic deformation such as breakage occurs, the extinguishing powder stored in the extinguishing powder capsule 110 is located around the cable connection points (P11, P12, P12, P21 ... ) can be emitted to suppress the topic.

In addition, on the rear surface of the extinguishing powder capsule 110, a dotted line pattern 111 capable of inducing damage may be formed in a portion facing the extinguishing area. For example, the dotted line pattern 111 is the extinguishing powder capsule 110 It can induce plastic deformation to occur first in the process of increasing pressure. In addition, when the dotted line pattern 111 is disposed to face the flexible bus bar 50, the fire extinguishing powder capsule 110 may be induced to cover at least the upper surface and the side surface of the cable connection point where the fire occurred while unfolding. That is, the fire may be extinguished by covering the cable connection point with the extinguishing powder capsule 110 . At this time, the dotted line pattern 111 may be formed in a shape set on the rear surface of the extinguishing powder capsule 110 so as to cover the cable connection point while the extinguishing powder capsule 110 is damaged by increasing pressure.

That is, the fire extinguishing powder capsule 110 starts to break in the direction of the cable connection point, and fires extinguishing powder primarily by emitting extinguishing powder, and secondly, by covering the outside of the cable connection point as a whole to cover the whole, the extinguishing powder capsule 110 at the same time Asphyxiation can be achieved while covering the cable junction to be covered. Also, although not shown in the drawings, a fire extinguishing curtain (not shown) that spreads from the inside to the outside as the fire extinguishing powder capsule 110 is broken and can cover the distribution cable connection point more extensively may be provided. Such a fire curtain may increase its cross-sectional area or volume as the fire extinguishing powder capsule 110 is increased, for example, it may be unfolded like a three-dimensional figure development view.

In addition, the extinguishing powder capsule 110 includes a storage container 112 in which a chemical solvent is stored, and an induction means 113 for forcibly inducing a chemical reaction through mixing of chemical solvents by breaking the storage container 112. As a result, the extinguishing powder capsule 110 is basically filled with extinguishing powder, and a storage container 112 in which a chemical solvent is stored therewith and an induction means 113 may be separately provided. In addition, the chemical solvent stored in the storage container 112 may include sodium azide and iron oxide, and a material called sodium azide (NaN ₃ , sodiumazide) consisting of sodium and nitrogen is even at a high temperature of about 350 ℃. It does not catch fire and has the stability of not detonating in the event of a collision. Also, sodium azide reacts violently while mixing with iron oxide to produce nitrogen. That is, when a fire is detected through the sensor unit 130 , the induction means 113 can induce a chemical reaction between sodium azide and iron oxide, which are stored separately from each other while destroying the storage container 112 . Through this, sodium azide can be decomposed into sodium and nitrogen, and a large amount of this nitrogen gas is rapidly generated to increase the pressure of the extinguishing powder capsule 110, and eventually plastic deformation is induced to suppress the fire. will be. Of course, the pressure increase using the storage container 112 and the induction means 113 and the pressure increase using the pressure increase means 120 can be selectively or simultaneously made, and more preferably, the induction means 113 is the storage container 112 ) to increase the pressure of the extinguishing powder capsule 110 while instantaneously rapidly generating nitrogen gas by destroying it, it is possible to cope with fire suppression faster than using the pressure increasing means 120 .

In addition, the extinguishing powder capsule 110 is made of a material resistant to fire, but as the dotted line pattern 111, deformation and damage due to heat may be made through the weak part like the dotted line pattern 111. It may provide the digestive function of

In addition, the extinguishing powder stored inside the extinguishing powder capsule 110 may be a powder extinguishing powder stored. Powder fire extinguishing powder uses specially processed sodium bicarbonate powder (fineness of 100 mesh or more required for fire extinguishing) and can be radiated with nitrogen gas. and can promote asphyxiation through this. In addition, there is an advantage that can be applied to all fires of oil, electricity, and chemicals.

In addition, the induction means 113 may cause damage to the storage container 112 by using the elastic restoring force of the spring, or to melt the storage container 112 by using electrical resistance.

In addition, the pressure increasing means 120 includes a tank 121 storing carbon dioxide gas or nitrogen gas therein, and a check valve 122 capable of opening and closing the inlet and outlet of nitrogen gas from the tank 121 to the extinguishing powder capsule 110 . ), the pressure-increasing means 120 may be connected to at least one or a plurality of extinguishing powder capsules 110, and the pressure-increasing means 120 is preferably disposed around the cable connection point, but may be disposed apart. there will be Accordingly, when the sensor unit 130 detects a fire, the check valve 122 may be opened by receiving a control signal, and fire detection information, fire It is possible to transmit unique information and location information of the fire extinguishing module.

That is, when at least one sensor unit 130 provided in the vicinity of the distribution cable connection point detects a fire, the check valve 122 is opened and the carbon dioxide gas or nitrogen gas (hereinafter, nitrogen gas stored in the tank 121) inside the tank 121 is detected. as an example) may be supplied to any one or a plurality of selected extinguishing powder capsules 110 , and when gas is supplied to the extinguishing powder capsules 110 , the extinguishing powder capsules 110 disposed above the cable connection point are As it expands, the internal pressure increases, and fire extinguishing can be accomplished by radiating the extinguishing powder due to the pressure of the gas around the distribution cable connection point where the extinguishing powder capsule 110 is damaged.

Of course, the gas supplied from the pressure-increasing means 120 may be selectively supplied to each fire extinguishing powder capsule 110 , or the fire extinguishing powder capsules 110 disposed in the surrounding area of the fire area. Or, gas may be supplied to the entire fire extinguishing powder capsule 110 provided inside the enclosure body, and the sensor unit 130 may include a smoke sensor, a heat sensor, a flame sensor (arc sensor), and the like. For example, a smoke sensor is a device that detects smoke due to combustion and detects an accident before heat is generated by a fire. It may be suitable for places where faster detection is required, such as those related to electricity. In addition, the thermal sensor operates when the ambient temperature rises above the set reference point, and is classified as a differential type and a constant temperature type. There are two methods, one that uses air expansion and one that detects a change in the value of electrical resistance due to a rise in temperature. In addition, in the case of the constant temperature type, there are a method that uses a bimetal and a method that detects a change in thermal resistance as a method to operate when the ambient temperature reaches a certain temperature, and the flame sensor uses infrared rays ( There is an infrared spot type for detecting IR) and an ultraviolet type spot type for detecting ultraviolet light (UV). In addition, there is a combined spot type type that mixes these, and it is a method of detecting the energy of a specific wavelength (infrared, ultraviolet) emitted from a flame by changing it into electrical energy. It was used for the phenomenon in which electromotive force is generated by emission.

A structure in which the fire extinguishing module 100 operates when the set temperature range is reached using a bimetal among various types of the sensor unit 130 installed in the underground power distribution cable in the underground common area applied to the present invention will be described as an example. Of course, the above-described sensors may be provided in combination. In addition, the bimetal may be implemented so that the extinguishing area is switched on by contacting, for example, in the range of 60°C to 140°C. More preferably, the ambient temperature of the extinguishing zone can be switched on in the range of about 80 ℃.

In addition, the sensor unit includes a control unit, and the unique information stored in the memory 133, location information, and fire detection information detected by the sensor unit are controlled using the communication module 132 to be installed at regular intervals in the underground cavity. It can be transmitted to the module 200-1.

In addition, a plurality of bimetals are installed around the fire extinguishing area, and when any one of the bimetals is switched on, the induction means destroys the storage container to induce a chemical reaction, or when the check valve is opened, carbon dioxide gas or Nitrogen gas may be supplied to any one or a plurality of selected extinguishing powder capsules 110, or the gas may be supplied directly to the extinguishing area.

Therefore, according to the underground power distribution cable installed in the underground pit to be applied to the present invention, when a fire occurs at the cable junction, it is possible to automatically respond to fire suppression, and a storage container in which a chemical solvent is stored inside the extinguishing powder capsule; By providing an induction means capable of forcibly inducing a chemical reaction of the solvent, nitrogen gas can be supplied in an instant by inducing a chemical reaction in the event of a fire, so the supply time of the extinguishing powder can be accelerated, and the extinguishing powder capsule is damaged by increased pressure It is possible to induce asphyxiation fire by covering the fire extinguishing area, and a separate pressure-increasing means is provided so that if the reaction of the chemical solvent in the storage container is not possible, the fire extinguishing powder capsule can be increased as the next best solution. it can be

100-1: fire extinguishing module, 200, 200-1: control module,
300, 300-1: infrared camera module, 400, 400-1: management server,
500, 500-1: manager smart terminal

Claims (3)

In the distribution cable temperature and fire monitoring system of the underground distribution line based on the load current of the underground distribution line installed in the underground pit,
Based on the management server unique information, the name of the distribution line, the unique information and location information of each infrared camera matching the distribution line, the unique information and location information of the fire extinguishing module matching the distribution line, and the load current flowing through the distribution line Stores the reference set temperature information of the connection point in the longitudinal direction of each R, S, and T phase of the distribution line and the temperature difference information for each reference phase at the connection point centered on the same location connection point of R, S, and T phases. and periodically receive and store R-phase, S-phase, and T-phase current information of the distribution line from the management server, receive camera activation information from the manager smart terminal and transmit it to each infrared camera module, and unique information and location from the infrared camera module Receives and stores information, distribution line connection point image information, connection point information and connection point temperature information, received load current for each phase of each phase, the name of the distribution line, the infrared camera unique information and location information matching the distribution line, each Infrared camera connection point image information, connection point information for each phase and connection point temperature information, R-phase longitudinal connection point information of the distribution line based on time information, S-phase longitudinal connection point information, T-phase longitudinal connection point point The information is converted into a DB and stored in the distribution line length and temperature information DB, the distribution line name information, the infrared camera unique information and location information matching the distribution line, current information for each phase of the distribution line, the distribution line R-phase, S-phase, and T-phase same location junction point information, temperature information, and time information are converted into a DB and stored in the junction temperature information DB, and based on the length and temperature information DB, the length direction of each phase of the distribution line It is determined whether the temperature of each connection point is above the set temperature of the longitudinal connection point based on the preset load current for each phase. taken in the longitudinal direction The same location of each phase based on the load current of each phase based on the junction point image information, the corresponding longitudinal junction point information, the longitudinal junction point temperature information, time information, and the primary temperature alarm, to the management server, based on the junction temperature information DB It is determined whether the temperature difference of each phase of the connection point is equal to or greater than the set reference phase temperature difference. , transmits the same location access point information, phase temperature information, time information, and primary temperature alarm of the same location access point point to the management server, and receives and receives fire detection information, unique information and location information from the fire extinguishing module Fire extinguishing module unique information and location information, fire detection information, connection point image information captured by an infrared camera module located closest to the fire extinguishing module, connection point information and connection point temperature information, time information, and secondary fire alarm a control module 200-1 for transmitting to the management server;
It is installed at regular intervals in the upper part in the longitudinal direction around the distribution cable connection point of the underground common pit. It contains camera location information and unique information, the name of each distribution cable, and R, S, and T phase connection point information based on the corresponding infrared camera. It stores, receives activation information from the control module, switches the camera from sleep mode to operation mode, shoots the connection point of the corresponding distribution cable, and controls its own information, connection point image information, connection point information and connection point temperature information. an infrared camera module 300-1 for periodically transmitting;
It stores the control module’s unique information and location information, and receives R-phase, S-phase, and T-phase current information of the distribution line from the substation switchboard of the distribution line in real time, and R-phase, S-phase, and T-phase of the distribution line Current information is periodically transmitted to the control module, and from the control module, the name of the distribution line, the infrared camera module specific information and location information of the distribution line, the image information of the connection point in the longitudinal direction taken by the infrared camera, the length direction Receives the corresponding connection point information, longitudinal direction corresponding connection point temperature information, time information and primary temperature alarm, and receives from the control module the name information of the corresponding distribution line, the specific information and location information of the corresponding infrared camera of the corresponding distribution line, and the corresponding infrared camera Receives the video information of the same location access point captured by Infrared camera module unique information and location information, video information of the corresponding connection point in the longitudinal direction taken by the infrared camera, information on the corresponding connection point in the longitudinal direction, temperature information of the corresponding connection point in the longitudinal direction, time information, and primary temperature alarm to the manager smart terminal In addition, name information of the distribution line received from the control module, information and location information of the corresponding infrared camera of the distribution line, image information of the same location connection point captured by the infrared camera, information on the same location access point point, the corresponding Transmits phase-specific temperature information, time information, and primary temperature alarm of the same location access point to the manager's smart terminal, and from the control module, unique information and location information, fire extinguishing module unique information and location information, fire detection information, and the corresponding fire extinguishing module Receives the video information of the connection point captured by the infrared camera module located closest to the Management smart terminal for oil information and location information, fire detection information, connection point image information captured by an infrared camera module located closest to the fire extinguishing module, connection point information and connection point temperature information, time information and secondary fire alarm a management server 400-1 that transmits to;
It stores the unique information of the control module and transmits the camera activation information to the control module, and indicates the temperature difference between the connection point points in the longitudinal direction for each phase from the management server. Receive information and location information, video information of the corresponding connection point in the longitudinal direction taken by the infrared camera, information on the corresponding connection point in the longitudinal direction, temperature information of the corresponding connection point in the longitudinal direction, time information, and primary temperature alarm, and also receive the connection point temperature for each phase By providing information difference, name information of the distribution line, unique information and location information of the infrared camera of the distribution line, image information of the same location connection point captured by the infrared camera, information on the same location connection point point, the same location access point Receive temperature information, time information, and primary temperature alarm for each phase of the point, and control module specific information and location information, fire extinguishing module specific information and location information, fire detection information, and the location closest to the fire extinguishing module from the management server a manager smart terminal 500-1 that receives and provides access point image information captured by the infrared camera module, corresponding access point information and access point temperature information, time information, and secondary fire alarm;
And when a fire occurs in the underground pit, the fire extinguishing module 100 is a fire extinguishing powder capsule ( 110), and the temperature and fire monitoring system of the distribution cable of the underground distribution line based on the load current of the underground distribution line installed in the underground cavity, characterized in that it comprises a pressure boosting means 120 and a sensor unit 130.
According to claim 1,
The infrared camera,
Distribution of an underground distribution line based on the load current of the underground distribution line installed in an underground common duct, characterized in that it can be installed at the same location connection point point of the R-phase, S-phase, T-phase cable of the distribution line or at each cable connection point point of each phase Cable temperature and fire monitoring system.
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