KR20210034533A - Apparatus for Detector of Temperature of Rack - Google Patents

Abstract

The present invention relates to a rack fire prevention device which measures a temperature of a plurality of heat release points where a real fire possibility exists inside a rack, and monitors a temperature increase state to alert a manager before a fire occurs, thereby preventing the fire from occurring. To achieve the object of the present invention, the rack fire prevention device comprises: a plurality of temperature sensors detecting the temperature from components, connections or ambient temperature inside the rack; a multi-temperature sensor which receives a temperature measurement signal detected from each temperature sensor for each channel, converts the same into a temperature value, and alerts a temperature measurement value when the temperature is greater than or equal to a set reference temperature value; and a display unit which records and stores the temperature measurement value in real time through the multi-temperature sensor, receives the reference temperature value and an abnormal temperature alarm signal, and displays the same through a screen.

Description

Rack Fire Protection {Apparatus for Detector of Temperature of Rack}

The present invention detects a real-time temperature rise of internal parts such as cables, busbars, and circuit breakers due to a cause of poor contact at the power connection part inside an electric/electronic/communication device rack, and exceeds a set temperature. It relates to a rack fire prevention device to prevent the occurrence of fire by alarming when this is detected.

In general, fire detection in electric facilities, computer rooms, or communication equipment is mainly used to detect fire through smoke detection or heat detection sensor attached to the ceiling, or by providing a temperature sensor inside the rack to detect the indoor temperature of the rack to prevent fire. Or it was mostly to detect.

A fire symptom complex detection system for racks for preventing such a fire in a rack is disclosed in Patent Publication No. 10-2005-0067700 (published date 2005.07.05).

1 is a configuration diagram of a fire symptom complex detection system for a rack according to the prior art, at least two racks 101 equipped with a plurality of types of computing equipment or communication equipment, and an inner side of the rack 101 A multi-sensor (not shown) respectively mounted as, and a transmission server 103 for collecting detection signals detected from the multi-sensors and mounting them to the communication network 105 through a predetermined protocol, and the A management server 107 and the management server 107 for performing fire prediction of each rack 101 based on a system management program by receiving a detection signal of a multi-sensor transmitted from the transmission server 103 by being connected to the communication network 105 It is connected to the communication network 105 to display management information according to the fire prediction of the management server 107, and for the corresponding rack 101 in which an abnormal signal is detected through the management server 107 and the transmission server 103. It consists of at least one operating terminal 109 for generating a warning message.

The fire symptom complex detection system for a rack according to the prior art configured as described above detects combustion gas inside the rack, detects humidity, and detects heat by a multi-sensor built into one side of the rack, and remotely manages the detected signal. By notifying the server, it monitors the initial state of a fire or predicts a fire and provides a warning message to protect expensive equipment sensitive to fire in the event of a fire, and provides the effect of minimizing property damage.

However, such a conventional technology does not detect points that may actually generate heat and spread to fire, and cannot check for temperature rise due to poor contact with cables, busbars, and wiring breakers (MCCB). There was a problem in detecting the occurrence of fire after the fire has already occurred at the point of fire.

Patent Publication No. 10-2005-0067700 (published date 2005.07.05)

Therefore, in order to improve the problems of the prior art, the present invention constantly measures the temperature of a plurality of possible heat generation points inside the rack through a sensor developed according to the situation, and monitors the temperature rise state. Therefore, the purpose of this is to provide a rack fire prevention device to prevent the occurrence of fire because it alerts the manager before the occurrence of fire.

A rack fire prevention apparatus for achieving the object of the present invention includes a plurality of temperature sensors for sensing temperature from components, connections, or ambient temperature inside the rack; A multi-temperature sensor that receives the temperature measurement signal sensed from each of the temperature sensors for each channel, converts it into a temperature value, and alarms when the converted temperature measurement value is greater than or equal to a set reference temperature value; And a display unit that records and stores a temperature measurement value in real time through the multi-temperature sensor, receives a reference temperature value and an abnormal temperature alarm signal, and displays them through a screen.

The plurality of temperature sensors may include a contact-type temperature sensor configured with a plurality of channels to measure temperature by directly contacting the surface of an insulating bus bar, a cable, and a component; Infrared temperature sensor composed of a plurality of channels to measure the surface temperature of non-contact parts including non-insulated busbars and cables in a non-contact manner; A wireless temperature sensor that measures a surface temperature of a contactable component including the non-insulated busbar and high-power cable by a contact method and transmits the measured temperature through a wireless communication method; It characterized in that it comprises a thermal image temperature sensor for remotely measuring the surface temperature of components including the busbar connection, cable connection, component surface, and PCB surface.

In addition, the multi-temperature sensor includes a multi-channel input unit for receiving a plurality of temperature measurement signals; An internal temperature sensor measuring the internal temperature of the multi-temperature sensor; An MCU converting the temperature measurement signal received through the multi-channel input unit and the temperature measurement signal from the internal temperature sensor into respective temperature values, comparing them with a preset reference temperature value step by step, and outputting an alarm signal step by step; An external communication unit for outputting the temperature value measured by the MCU to the outside; An alarm sound generator for generating a step-by-step alarm sound according to a comparison result of the measured temperature value and the reference temperature value in the MCU; And a power control unit forcibly shutting down the power supply according to the comparison result of the measured temperature value and the reference temperature value in the MCU.

The rack fire prevention device according to the present invention constantly measures the temperature of a plurality of heat generation possible points in the rack where there is a possibility of a fire, and monitors the temperature rise state through the attachment of sensors according to the field situation. Because it alerts to, it is possible to monitor the temperature rise in real time at the point where heat is actually generated and may spread into a fire, and accordingly, there is an effect that more accurate and realistic fire prevention is possible.

In addition, the present invention combines and installs a contact-type temperature sensor, an infrared temperature sensor, a wireless temperature sensor, and a thermal image temperature sensor according to the characteristics and environment of the internal parts of the rack to be measured, and monitors them in real time to prevent fire due to temperature rise. There is an effect that can be prevented.

1 is a configuration diagram of a fire symptom complex detection system for a rack according to the prior art,
2 is a configuration diagram of a rack fire prevention device according to an embodiment of the present invention,
3 is a configuration diagram showing a detailed description of a multi-temperature sensor and a sensor that sends temperature information in FIG. 2,
4 is a diagram showing an embodiment of the main screen of the display unit in FIG. 2,
5 is a diagram showing an embodiment of the setting screen in FIG. 4,
6 is a diagram showing an embodiment of a display screen for a total temperature for each channel of a display unit in FIG. 2;
7 is a diagram showing a graph actually measuring the internal temperature of a designated transformer side (AC380V) in a substation of a train station for train operation using a thermal image temperature sensor according to an embodiment of the present invention.

The features and effects of the present invention described above will become more apparent through the following detailed description in connection with the accompanying drawings, and accordingly, those of ordinary skill in the technical field to which the present invention pertains can easily implement the technical idea of the present invention. I will be able to.

In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be exemplified and described in detail in the text.

However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

When described in detail with reference to the accompanying drawings with respect to the rack fire protection device according to a preferred embodiment of the present invention as follows.

Figure 2 is a configuration diagram of a rack fire protection device according to an embodiment of the present invention, a plurality of temperature sensors 211 for sensing the temperature from parts, connections or ambient temperature inside the rack, and each of the temperature sensors 211 A multi-temperature sensor 220 that receives the detected temperature measurement signal from each channel and converts it into a measurement temperature value, and alarms when the converted measurement temperature value is higher than a set reference temperature value, and the multi-temperature sensor 220 Through the display unit 230 to record and store the measured temperature value in real time, receive a reference temperature value and an abnormal temperature alarm signal, and display them through a screen, and the measured temperature value received from the multi-temperature sensor 220 , A reference temperature value and an alarm signal are received, stored in a database and managed, and configured with a computer unit 240 that transmits it to an administrator's smartphone.

Here, the multi-temperature sensor 220 includes a multi-channel input unit 221 for receiving temperature measurement signals CH 1 to CH n measured through a plurality of temperature sensors 211 to 211c, and the multi temperature sensor 220 ) And converts the temperature measurement signal received through the multi-channel input unit 221 and the temperature measurement signal from the internal temperature sensor 226 into respective temperature values, and , An MCU 222 for outputting an alarm signal step by step by comparing with a preset reference temperature value step by step, an external communication unit 223 for outputting the temperature value measured by the MCU 222 to the outside, and the MCU ( An alarm sound generator 224 that generates a step-by-step alarm sound according to the comparison result of the measured temperature value and the reference temperature value at 222), and the power supply according to the comparison result of the measured temperature value and the reference temperature value at the MCU 222 The power control unit 225b forcibly shutting down the power supply, the power supply unit 227 supplying the driving power of the multi-temperature sensor 222, and wired, infrared, wireless, and thermal images that can change the temperature measurement method according to the field situation. It consists of temperature sensors 211, 211a, 211b, 211c.

In addition, the display unit 224 receives the measured temperature value and alarm information input from the multi-temperature sensor 222 and displays the screen, sets a reference temperature value by a touch input method, and It is configured to enable each function setting.

In addition, the manager computer 240 receives the measured temperature value and alarm information of each channel transmitted from the multi-temperature sensor 220 like the display unit 224 and displays it on the screen, and sets the reference temperature value and Each function of the multi-temperature sensor 222 can be set, and the measured temperature value and alarm information are transmitted to a wireless terminal such as an administrator's smartphone.

The detailed operation of the present invention configured as described above will be described in detail as follows.

First, the present invention measures the temperature of only the point where fire is expected due to heat generation of each component, cable, busbar, wiring breaker, connector, etc. inside the rack of not only switchboards and transformers, but also communication equipment and computing equipment. It monitors and alarms when the temperature exceeds a preset temperature before ignition, or automatically shuts down to prevent a fire in the rack.

2 is a configuration diagram of a rack fire protection device according to an embodiment of the present invention, in which the rack fire protection device 200 first installs a temperature sensor on parts, cables, busbars, wiring breakers, connectors, etc. that are expected to fire.

In particular, in the case of a switchboard, the connection part 210 of the busbar 212 is a part that has a high risk of fire due to abnormal heat generation when a contact failure occurs due to corrosion or poor coupling.

In this way, the temperature sensor 211 is coupled to the connection portion of the busbar and the busbar, and the connection portion 210 of the busbar and the cable, respectively, and the temperature sensor 211 is attached to other heating points where there is a risk of fire.

The temperature sensor coupled to each point inside the rack is input to the multi-temperature sensor 220 for each channel.

Referring to FIG. 3, the multi-temperature sensor 220 receives a temperature measurement signal for each channel through the multi-channel input unit 221 and then inputs it to the MCU 222.

The multi-channel input unit 221 is mainly composed of a plurality of channels, and according to the field situation, a contact type temperature sensor 211, an infrared temperature sensor 211a, a wireless temperature sensor 211b, a thermal image temperature sensor 211b, etc. Install the temperature sensor in combination according to the temperature measurement environment.

The contact-type temperature sensor 221 directly contacts the surface of an insulating bus bar, a cable, and a component, so that a contact-type wired temperature sensor can be configured with a plurality of channels.

The infrared temperature sensor 211a may be configured with a plurality of channels to measure the temperature of the surface of non-insulated busbars, cables, parts, etc. in an environment where contact is impossible in a non-contact manner, and the wireless temperature sensor 211b It is configured to measure the surface temperature of insulated busbars, high-power cables, etc. by contact and transmit the measured temperature by wireless communication.This is because the drive power is supplied using the induced current of the temperature sensor itself, so separate external power is supplied. Operation is possible without the need for this.

In addition, the thermal image temperature sensor 211c is mainly used to measure the temperature of the busbar connection part, the cable and the connection part, the surface of the subform, and the PCB surface. The thermal image temperature sensor is applied, and the thermal image temperature sensor is composed of 1024 pixels and can be calculated by calculating 1024 temperature data, and it generates an alarm when the calculated temperature reaches the set maximum temperature.

As described above, the thermal image temperature sensor 211c is a sensor capable of representing infrared energy emitted from the surface of an object in terms of temperature distribution and color, and converts the infrared energy emitted from the object into an electrical signal through the detection lens of the optical system and outputs it. And this is calculated as a temperature value.

Here, each of the temperature sensors 211 to 211c measures the temperature of 1 point of the heating point of the object to be measured and processes it with software, and is capable of displaying and interlocking with an external device and an alarm for a temperature display and a set temperature.

The MCU 222 receives not only the temperature measurement signal from the multi-channel input unit 221, but also the temperature measurement signal input from the internal temperature sensor 226 that measures the internal temperature or the PCB of the multi-temperature sensor 200. It receives the input, converts it into a measured temperature value, and compares it with a preset reference temperature value, and when it exceeds the reference temperature value, it alarms.

Referring to FIG. 7, the thermal image temperature sensor 211c is a graph measuring the internal temperature of a designated transformer side (AC380V) in a substation of a train station for train operation using two thermal image temperature sensors TC1 and TC2, As shown in the graph of the lowest and highest temperature changes measured by two thermal imaging temperature sensors (TC1, TC2) during June and July, the temperature at the measuring point of the power supply line rose by an average of 6.9 from June 15 to July 24. As a result of data analysis, it was confirmed that the temperature change of TC1 rises up to 12℃.

In addition, the temperature change at the connection point of the power supply line occurred when the thermal image temperature sensor (TC1) was at a maximum of 32°C, and the thermal image temperature sensor (TC2) was at a maximum of 26°C, resulting in a difference of 6°C. It is believed that there is no other abnormal phenomenon.

In this way, it monitors the temperature of the feeder line inside the transformer more accurately through the temperature change graph measured from the two thermal image temperature sensors (TC1, TC2) to determine whether there is an abnormality, and to generate an alarm when the maximum temperature range is exceeded. do.

This is compared with the temperature measured by the thermal image temperature sensors (TC1, TC2) as well as other temperature sensors 211 to 211b with a preset reference temperature value, and alarms when the reference temperature value is exceeded.

That is, an alarm sound is generated through the alarm sound generator 224 and an alarm signal is generated through the manager display unit 230 or the manager computer 240 through the external communication unit 113.

In addition, it provides a contact output that can be connected to the outside from the device when an alarm occurs. Alarm generation is output in two stages. In the first stage, a warning alarm is generated and an external contact output is provided to additionally use a display device that can check the warning condition, and in the second stage, an alarm for a serious situation is generated. It is configured so that it can be configured to cut off the power of the device or check the serious alarm condition by using an additional external display device by providing an external contact output.

Meanwhile, the external communication unit 223 transmits the measured temperature value and alarm generation information of the MCU 222 to the display unit 230 or the manager computer 240.

Referring to FIG. 4, the display unit 230 receives a temperature measurement signal input through the external communication unit 223 and displays it on a screen.

In other words, it displays the current measurement temperature (①) for each channel, and when a corresponding channel is touched and inputted, detailed information about the measurement temperature of the corresponding channel is displayed as a fluctuation graph or numerical value, and alarm generation information can also be checked.

Here, ① indicates the current measurement temperature for each channel (CH 1 to CH 12), and if you touch and input this area, detailed information of the corresponding channel is displayed, and ② indicates the name of the current screen, and if an alarm occurs It displays an alarm. ③ indicates the current board number, ④ indicates the version information of the multi-temperature detector 220, ⑤ indicates the communication status with the multi-temperature detector 220, and ⑥ indicates the setup button (SETUP). When a touch selection is input by the user, it moves to the function setting screen of the multi-temperature sensor 220, ⑦ moves to the alarm screen when touch selection is input with the alarm (ALARMS) button, and ⑧, ⑨ moves to the BOARDx selection button. When a touch selection input is input, it moves to the corresponding board, and ⑩ is a button for selecting ON/OFF of the BUZZER when the alarm sound of the alarm sound generator 224 of the multi-temperature sensor 220 is generated, and ⑪ Is an area for displaying the current date and time.

In this way, it is possible to check the entire state of the multi-temperature sensor 220, such as a temperature or an alarm state, through the main screen of the display unit 230.

On the other hand, Figure 5 is a screen display when the setting button (⑥) (SETUP) button is selected, it is possible to set the reference temperature of each channel, an alarm time when an alarm occurs, and a shutdown delay time, etc. Configure the screen so that individual or all channels can be set at the same time.

That is, the alarm relay unit 225 alarms in two stages according to the range beyond the reference temperature, and the first stage transmits an alarm message to the administrator through the alarm generator 225a, and displays the current alarm status through the screen. Mark. In the second step, if the temperature continues to rise even with the first-stage alarm, the power control unit 225b shuts down power supply other than the management and operating systems of communication and computers, so that a fire due to overheating does not occur.

6 is a diagram showing an embodiment of a display screen displaying the measured temperature for each temperature measurement time of each channel, and the measurement date and time (A) and each channel (B to G) through the screen of the display unit 230 By displaying the temperature of, you can check the change of the measured temperature value.

The temperature displayed on each channel is the temperature of components such as boost bars, cables, and connections in the rack, MCCBs, inverter heat sinks, transformers, connectors, etc. and their ambient temperature, and the board or ambient temperature of the multi-temperature sensor 220. It is the temperature value measured from each temperature sensor attached to measure the temperature. In addition, an alarm is possible by attaching a temperature sensor at the point where a fire is expected.

In addition, if there is a risk of abnormal operation when the temperature rises above the standard temperature, such as a rack of communication equipment or computer equipment, not a risk of fire due to high temperature such as a rack of a switchboard, the reference temperature is set and applicable. Monitoring and alarming of parts are possible.

As described above, the rack fire prevention apparatus according to an embodiment of the present invention is not limited by this embodiment, although it has been described by a limited embodiment and drawings, and by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the technical spirit of the present invention and the equivalent range of the claims to be described below.

200: rack fire prevention device 210: connection
211: contact temperature sensor 211a: infrared temperature sensor
211b: wireless temperature sensor 211c: thermal image temperature sensor
212: boost bar 220: multi-temperature sensor
221: multi-channel input unit
222: MCU 223: external communication unit
224: alarm sound generation unit 225: alarm relay unit
225a: alarm generator 225b: power control unit
226: internal temperature sensor 227: power supply
230: display unit 240: administrator computer

Claims (6)

In the rack (rack) fire protection device,
At least one temperature sensor for sensing a temperature from components, a connection part, or an ambient temperature inside the rack;
A multi-temperature sensor for receiving a temperature measurement signal sensed from each of the temperature sensors for each channel, converting it into a temperature value, and alarming when the converted temperature measurement value is greater than or equal to a set reference temperature value; And
And a display unit that records and stores temperature measurement values in real time through the multi-temperature sensor, receives a reference temperature value and an abnormal temperature alarm signal, and displays them through a screen. The method of claim 1,
The plurality of temperature sensors may include a contact-type temperature sensor configured with a plurality of channels to measure temperature by directly contacting the surface of an insulating bus bar, a cable, and a component;
Infrared temperature sensor composed of a plurality of channels to measure the surface temperature of non-contact parts including non-insulated busbars and cables in a non-contact manner;
A wireless temperature sensor that measures the surface temperature of a contactable component including the non-insulated busbar and high-power cable by a contact method and transmits the measured temperature through a wireless communication method;
A rack fire protection device comprising: a thermal image temperature sensor that remotely measures the surface temperature of components including a busbar connection portion, a cable connection portion, a component surface, and a PCB surface. The method of claim 1,
The connection part is a rack fire protection device, characterized in that it comprises a connection part of the busbar and the busbar, the connection part of the busbar and the cable, or the connection part of the cable and the cable. The method of claim 1,
The multi-temperature sensor includes a multi-channel input unit for receiving a plurality of temperature measurement signals;
An internal temperature sensor measuring the internal temperature of the multi-temperature sensor;
An MCU for converting the temperature measurement signal received through the multi-channel input unit and the temperature measurement signal from the internal temperature sensor into respective temperature values, comparing each step with a preset reference temperature value, and outputting an alarm signal step by step;
An external communication unit for outputting the temperature value measured by the MCU to the outside;
An alarm sound generator for generating a step-by-step alarm sound according to a comparison result of the measured temperature value and the reference temperature value in the MCU; And
And a power control unit for forcibly shutting down the power supply according to the comparison result of the measured temperature value and the reference temperature value in the MCU. The method of claim 1,
The display unit simultaneously displays the temperature value of each channel measured for each measurement time,
Rack fire protection device, characterized in that when each channel is selected, the temperature value change graph of the corresponding channel is displayed. The method of claim 5,
And the display unit sets the same reference temperature value for each channel or for all channels at once.

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