KR20190000163A - Controller of IoT-based connector with built-in smart sensor - Google Patents

Abstract

The present invention relates to an IoT-based connection material controller embedded with a smart sensor, which comprises: a sensor signal measuring unit (100) including a voltage sensor (103) and a temperature sensor (104) embedded in a housing (102) of a connection material (101), and a PD sensor (106) attached to an external semi-unit (105) to measure each sensor signal; a signal converting unit (200); a wireless communication/interface unit (300); a memory (400); a control unit (500); an alarm unit (600); a display unit (700); a power supply unit (800) for supplying power required for a controller device; and a controller including IoT (900) which can be transmitted to an upper server, having a smart sensor embedded in the connection material to increase reliability on information, and embedded with an algorithm for analyzing and determining a detected signal. Accordingly, an Internet convergence technology is applied to determined data to create an information providing function and an alarm function in the upper server so as to minimize field inspections, thereby reducing costs. Also, a defective connection material is replaced at a proper time before a fault occurs, thereby contributing to a stable power supply, and remote monitoring and self-diagnosis capable of preventing an accident can be performed. In addition, a connection material is manufactured by using a flame retardant material, thereby having an excellent waterproof property, and a fire due to abnormality of the connection material is not caused since a heat resistant performance is excellent. Furthermore, a configuration is simple with a method of expanding a connection material housing in a self-shrinkable type, economic feasibility is excellent since costs of the connection material can be lowered due to improved buildability, and an advantage of a long lifespan that the IoT-based connection material controller of the present invention can be stably used for a long time without a fault is provided, thereby being useful.

Description

[0001] The present invention relates to an IoT-based connector for a smart sensor,

The present invention relates to a smart sensor system, which comprises a connection member in which a smart sensor is embedded or attached to a connection member, a controller having an algorithm capable of determining the status of information detected through a smart sensor, The present invention relates to a controller of a connection material capable of real-time remote monitoring and self-diagnosis by informing all or all of data or events. More specifically, The present invention relates to an IoT-based connection controller having a built-in smart sensor capable of contributing to a stable power supply and preventing a safety accident in advance.

As we all know, electricity is an essential energy for life that is used throughout various industrial fields. It uses two strands of wires to use electricity. It cuts wires as an essential means in the process of using wires, It is inevitable to use it.

A method of connecting two wires in a conventional manner as described above is as follows. The wire is peeled off with a tool such as a stripper at the end of the wire, and the two strands are twisted with each other such as + and - And the connecting work was completed. A separate synthetic resin insulation cap was placed on the insulating tape to connect the wires.

In this case, there is a disadvantage in that the wire connection site is not clean, and it takes a lot of time to cover the tape when the wire is connected and cover the synthetic resin insulation cap.

In addition, there has been a lot of clogs such as peeling of the synthetic resin insulation cap at the connection portion or loosening of the tape due to shortening of the connection portion or short circuit at the connection portion by the tape and the synthetic resin insulation cap over time.

In order to solve the above-mentioned disadvantages, a connector for connecting a wire is commercially available. Typically, a synthetic resin insulator cover having a turn piece formed on the outer circumferential surface thereof is provided with a fastening coil. When the two wires are connected, And is fastened and fixed by a coil.

In the case of such a configuration, it is possible to maximize the speed accuracy and reliability according to the wire connection.

However, since the coupling coil is directly built into the synthetic resin insulation cover having the protruding piece formed on the outer circumferential surface with the synthetic resin as described above, when the two coupling wires are connected, the coupling coil is inflated and the synthetic resin insulation cover is damaged Or when the wire connection portion is pressed from the outside, the synthetic resin insulation cover and the fastening coil are damaged.

As a conventionally developed technology in view of the above-described circumstances, Japanese Patent No. 1032733 discloses a " connector for wire connection "

As shown in FIGS. 1 and 2, the "connector for wire connection" of the aforementioned Japanese Patent No. 1032733 includes a fastening coil 1, a metal protective cap 10, a turning piece 30 and a non-skid ridge 31 And a synthetic resin insulation cover (20) formed on the main body (2). The main body (2) of the fastening coil (1) is constituted by a screw so as to be screwed in a part where twisted wires are twisted, 3 are formed in a rectangular shape so as not to be engaged with the metal protection cap so as to be coupled to the head 11 composed of the upper rectangle of the space 12 for charging the coupling coil into the metal protective cap 10 The lower portion of the fastening coil is formed so that the lower end of the metal protective cap 10 is pinched so that the fastening coil is not pulled out from the metal protective cap 10. The fastening coil 1, (10) is coupled to the synthetic resin insulation cover (20) And the metal protection cap 10 is disposed on the upper side of the synthetic resin insulation cover 20 in a head 21 having the same shape as the head of the metal protection cap And the lower end thereof is caught by the latching jaw 25 so that the synthetic resin insulation cover and the coupling coil can be prevented from being damaged by the internal and external pressures.

However, the "connector for wire connection" of the above-mentioned Japanese Patent No. 1032733 does not have a means for diagnosing deterioration of the connector for wire connection deteriorated due to use for a long period of time, that is, deterioration of connection material, line aging, The degree of deterioration of the connector can not be easily measured.

Also, as a conventional technique, a "power cable connecting device" of Patent Publication No. 2014-0062930 is disclosed in the patent document (refer to Patent Document 2).

As shown in FIG. 3, the "power cable connecting device" of the above-mentioned Patent Publication No. 2014-0062930 has a ball 11 at one end and a wire 15 inserted at the other end and fixed by a bolt 15 A first connecting means 10 having a wire insertion portion 13 and a ball engaging portion 21 which is inserted into the ball 11 of the first connecting means 10 so as to be rotatable And a second connecting means (20) having a wire insertion portion (23) to which the wire (3) is inserted at the other end and can be fixed by the bolt (15) The electric power can be transmitted from the electric wire inserted into the inserting portion 13 to the electric wire inserted into the electric wire inserting portion 23 of the second connecting means 20 so that the electric wire connecting device is bent flexibly, So that the wire can be protected.

However, the above-mentioned "power cable connecting device" of the above-mentioned Patent Publication No. 2014-0062930 does not have a means for diagnosing deterioration of the power cable connecting device such as deterioration of connection materials and line aging or failure due to long- There is a problem that it can not be easily understood.

On the other hand, in power transmission lines or distribution lines, it is necessary to use power cables because underground lines are installed according to various operational needs, and power cables are manufactured to a length of about 300 to 500 m due to manufacturing and transportation restrictions .

The underground line is a line to transmit electric power by installing a power cable in the underground. In Korea, for the first time, a 22kV underground railway line was constructed between Ahn Hyundai in Seoul in 1929 and a 345kV underground transmission line was installed in Seoul .

The above-mentioned underground line is mainly constructed in a place where the processing line is technically difficult, in a busy area in the center of a large city, in a critical area required for security, and in a large apartment complex. Most of them are buried beneath the road. In general, there are direct type, duct type, power outage type and bridge type, and the method to be applied is selected considering the place of installation and various advantages.

The power line underground project is a project to dismantle the processing distribution line that hurts the beauty of the city and to install the line in the ground. It is a project to improve the complex cityscape, power capacity expansion, Hurricane, and salt spill), and since the processing distribution lines are always exposed to the risk of safety accidents, the undergroundization of the processing distribution lines is a global trend, and it is steadily increasing. to be.

In underground construction, it is necessary to deal with terminal end of cable, connection between cables, and connection with electric power equipment. The cable connection material used here requires electrical characteristics of the same performance as the corresponding electric power cable, Electrical accidents can be caused, and it becomes very important to install a professional cable connection material to the underground line.

In advanced economies, we are introducing silicon-based connecting materials that are eco-friendly due to environmental friendliness and reduced emission of CO2. In addition to the assembled connecting materials manufactured by EPDM (Ethylene Propylene Diene Monomer) The specifications of self-shrinkable joint materials using silicon have been separately revised.

For this reason, foreign companies such as 3M and Raychem are currently supplying to KEPCO as a monopoly. In order to cope with this situation, it is required to develop a cable termination and a straight connection port using liquid silicone which is an environmentally friendly material.

In addition, as a result of analysis of 22.9kV CN-CV cable and connection port in Korea, 69% of the number of accidents was broken and 31% was analyzed as failure of cable. The installation of the connection port and the installation of the cable should be performed well.

In addition, the connection ports used in Korea are similar in terms of insulation design standards, but the material, structure, and construction method of the connection ports are different for each manufacturer, and when the deterioration tendency of the connection ports or the breakage of the connection ports due to such differences in materials, Each fracture site and cause of fracture have different tendencies.

In summary, the failure rate due to the compression failure of the sleeve is the largest percentage, but it is presumed that the misjudgment caused by the melting phenomenon occurring during the failure point location search is included. Defects such as poor tape winding, pore generation due to bending, defective pencil sharpening, defective removal of half-layer, insulator damage, tube heating failure, and pore generation due to foreign matter penetration.

As a conventional technique for detecting defects caused by the connection port of the underground cable, there is a method of measuring insulation resistance, DC leakage, partial discharge, DC withstand voltage, AC test, OSW (Oscillating Wave), IRC (Isothermal Relaxation Current) VLF (Very Low Frequency) measurement, and partial discharge sensor measurement.

However, the above-described conventional techniques are incapable of detecting defects such as clean voids and cuts occurring in the cable in the case of the DC test, and detrimentally affecting the performance of the cable in which the water tree phenomenon occurs, In the case of frequency test, the equipment is heavy and expensive, it is impossible to judge the state of the insulator, and IRC (Isothermal Relaxation Current) There is a problem in that diagnosis is made in the blackout state, the reliability of the diagnosis result is low, and the measurement time is long.

In addition, since the linear connection port is made of general organic rubber and has insufficient heat resistance, it can not withstand high heat or fire.

Patent Document 1: Registration No. 1032733 Patent Document 2: Japanese Patent Application Laid-Open No. 2014-0062930

SUMMARY OF THE INVENTION The present invention has been made in order to solve the various drawbacks and problems caused in the conventional cable connection materials in view of the above-mentioned circumstances. The controller is equipped with an algorithm that makes it easy to determine the status of the information in a separate external control box. After applying the information, IoT convergence technology is applied to provide information to the upper server and alarm function to minimize the on-site inspection And to provide an IoT-based connection controller having a built-in smart sensor capable of remote monitoring and self-diagnosis which can contribute to a stable power supply and prevent a safety accident in advance by reducing cost and replacing a bad connection material in a short period of time .

Another object of the present invention is to provide an IoT-based connection controller having a built-in smart sensor made of a flame retardant new material which is made of a flame retardant material and excellent in waterproof property and excellent in heat resistance performance and does not cause fire due to abnormality of a linear connection material I have to.

It is a further object of the present invention to provide a method of expanding an assembled type linear connecting material housing to a self-contracting type, which not only simplifies the construction but also improves the workability and reduces the cost of the linear connecting material. And to provide an IoT-based connection controller having a built-in smart sensor made of a flame retardant new material having a long life.

In order to achieve the above object, the present invention provides an IoT-based connection controller having a built-in smart sensor, which is attached to a voltage sensor 103, a temperature sensor 104 and an outer semi- A sensor signal measurement unit 100 configured to measure each sensor signal; A signal converting unit 200 for converting the analog signal An alog measured by the sensor signal measuring unit 100 into a digital signal Digital; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory 400 for storing set values of the temperature, voltage, and PD range of the normal state of the connection material; The measurement value converted by the signal conversion unit 200 is compared with a set value stored as a reference signal in the memory 400 to determine whether the measured value is within the temperature range of the steady state, the voltage difference range, or the PD range A control unit 500; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A display unit 700 for displaying the state of the connection member according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A power supply unit 800 for supplying power to the controller device; And an IoT 900 capable of transmitting an upper layer server.

The present invention relates to a system and method for providing information to an upper server and providing alarms by applying the Internet fusion technology to the data determined by a controller having a built-in smart sensor as a connection and enhancing the reliability of information, It is possible to reduce the cost by minimizing the on-site inspection and replace the bad connection material in a short time before the fault occurrence, thereby contributing to stable power supply and remote monitoring and self-diagnosis to prevent safety accidents in advance. It is excellent in waterproofness and excellent in heat-resistance. It does not cause fire due to abnormality of the connection material. The connection housing is expanded to a self-contracting type. In addition to simple construction, Can be used for long term stable without trouble There is a special advantage of having a long lifetime.

1 is a perspective view of a conventional wire connecting connector,
2 is a cross-sectional view of a conventional wire connecting connector,
3 is a conceptual diagram of an embodiment of a conventional power cable connecting apparatus,
4 is a block diagram of an IoT-based connection controller having a built-in smart sensor according to the present invention.
5A is an illustration of an IoT-based connection controller incorporated with a smart sensor of the present invention in the case of a straight line connection,
Fig. 5B is an example of an IoT-based connection material controller incorporating the smart sensor of the present invention in the case of a termination member,
5c is an illustration of an IoT-based connection material controller incorporating a smart sensor of the present invention in the case of a transformer connection material,
5D is an illustration of an IoT-based connection material controller incorporating the smart sensor of the present invention in the case of a switch connector.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of an IoT-based connection controller with a built-in smart sensor according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a block diagram of an IoT-based connection controller with a built-in smart sensor according to the present invention. FIG. 5A is an illustration of an IoT-based connection controller incorporating the smart sensor of the present invention in case of a straight line connection. 5c is an illustration of an IoT-based connection material controller incorporating a smart sensor of the present invention in the case of a transformer connection material, and Fig. 5d is an illustration of an IoT-based connection material controller The IoT-based connection controller A incorporating the smart sensor of the present invention is attached to a voltage sensor 103, a temperature sensor 104 and an outer semi-conductor 105 built in a housing 102 of a connection member 101 A sensor signal measurement unit 100 configured to measure each sensor signal; A signal converting unit 200 for converting the analog signal Analog measured by the sensor signal measuring unit 100 into a digital signal; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory 400 for storing set values of the temperature, voltage, and PD range of the normal state of the connection material; The measurement value converted by the signal conversion unit 200 is compared with a set value stored as a reference signal in the memory 400 to determine whether the measured value is within the temperature range of the steady state, the voltage difference range, or the PD range A control unit 500; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A display unit 700 for displaying the state of the connection member according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A power supply unit 800 for supplying power to the controller device; And an IoT 900 capable of transmitting the upper server.

The measurement signal of the sensor signal measuring unit 100 may include a voltage sensor 103 and a temperature sensor 104 built in the housing 102 and a temperature sensor 104 and an external semi- 105 is a signal source signal detected from a PD sensor 106 (Partial Discharge Sensor).

The insulation layer 102 is preferably made of a flame retardant silicone rubber which is an insulator and the voltage sensor 103 and the temperature sensor 104 and the PD sensor 106 are preferably connected to a voltage sensor 103 and the temperature sensor 104 are incorporated in the connection material, and the PD sensor 106 has a structure that facilitates detachment and attachment in consideration of economical efficiency by enhancing the characteristics thereof.

The insulating strength of the flame-retardant silicone rubber used as the insulating layer 102 is preferably 20 to 30 kV / mm.

It is preferable that the voltage sensor 103, the temperature sensor 104 and the PD sensor 106 can withstand a high temperature and an injection pressure, and the reference signal stored in the memory 400 is 70 ~ 80 캜, 60 - 100 V for a voltage, and 500 - 600 pC for a PD.

       Hereinafter, the operation of the IoT-based connection controller with the built-in smart sensor according to the present invention will be described in detail.

       Prior to the discussion, we will first look at the temperature, voltage, and PD diagnostic concepts for cable connectors.

A temperature sensor 104 and a PD sensor 106 attached to the outer semicircle 105 constitute a voltage sensor 103 and a temperature sensor 104 which are housed in the housing 102 of the cable connection member 101 as shown in FIG. The presence or absence of abnormality of the cable connection member can be diagnosed by processing the detection signal from the sensors of FIG.

4, the sensor signal measuring unit 100 includes a voltage sensor 103 and a temperature sensor 104 built in the housing 102 of the cable connection member 101, and a PD sensor And the signal conversion unit 200 converts the analog signal Analog measured by the sensor signal measurement unit 100 into a digital signal Digital

The signal converted by the signal conversion unit 200 is transmitted to a remote place through the IoT 900 fusion technology through the wireless communication / interface unit 300 as needed, and the presence or absence of the state of the cable connection material 101 is detected can do.

Meanwhile, a measurement signal, for example, a temperature, a voltage, and a PD signal converted into a digital signal by the signal conversion unit 200 is compared with a reference signal set in the memory 400 by the control unit 500, The control unit 500 determines that the state of the connection member is in a deteriorated state.

For example, when the reference temperature signal set in the memory 400 is set at 70 to 80 ° C, if the measured temperature is in the range of 70 to 80 ° C, the controller 500 determines the state of the connection material as a normal state The alarm unit 600 is not driven and the alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured temperature is lower than 70 deg. C, the controller 500 determines that the state of the connection member is abnormal, drives the alarm unit 600 to sound an alarm, and simultaneously displays the deterioration state of the connection member in the display unit 700 .

If the measured temperature is higher than 80 DEG C, the control unit 500 determines that the state of the connection member is abnormal, drives the alarm unit 600 to sound an alarm, and simultaneously displays the deterioration state of the connection member on the display unit 700 do.

In addition, a measurement signal, for example, a voltage signal converted into a digital signal by the signal conversion unit 200 is compared with a reference voltage signal set in the memory 400 in the control unit 500, If the voltage is outside the voltage range, the controller 500 determines that the state of the connection member is abnormal.

For example, when the reference voltage signal set in the memory 400 is set to 60 to 100 V, if the measured potential difference is within the range of 60 to 100 V, the controller 500 determines the state of the connection member as a normal state, The alarm does not sound and the display unit 700 displays a normal state.

On the other hand, if the measured potential difference is lower than 60V, the controller 500 determines that the state of the connection member is a power failure state, drives the alarm unit 600 to make an alarm, and displays a power failure state on the display unit 700 .

If the measured voltage is higher than 100V, the controller 500 determines that the connection state is abnormal, drives the alarm unit 600 to sound an alarm, and displays an abnormal state of the connection material on the display unit 700 at the same time.

The measurement signal, for example, a PD signal converted into a digital signal by the signal conversion unit 200 is compared with a reference PD signal set in the memory 400 by the controller 500, The control unit 500 determines that the state of the connection member is abnormal.

For example, when the reference PD signal set in the memory 400 is set to 500 to 600 pC, if the measured PD is within the range of 500 to 600 pC, the controller 500 determines the state of the connection material as a normal state, The alarm unit 600 does not operate and the alarm is not activated and the display unit 700 displays a normal state.

On the other hand, if the measured PD is less than 500pC, the control unit 500 determines that the state of the connection member is abnormal, drives the alarm unit 600 to sound an alarm, and simultaneously displays an abnormal state of the connection material on the display unit 700 do.

If the measured PD is greater than 600pC, the control unit 500 determines that the state of the connection member is abnormal, drives the alarm unit 600 to sound an alarm, and simultaneously displays an abnormal state of the connection material in the display unit 700 .

The information detected by the three sensors may be displayed on the display unit 700 through the controller A having the programmed algorithm embedded therein or information may be provided to the upper server in applying the IoT 900 fusion technology, By making alarm function, it is possible to minimize the on-site inspection and reduce the cost, and to replace the bad connection material before the failure, it contributes to stable power supply and prevent safety accidents in advance.

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the present invention is not limited thereto and various changes and modifications may be made without departing from the scope of the present invention.

100: Sensor signal measuring unit 101: Connection member
102: housing 103: voltage sensor
104: Voltage sensor 105: External semi-
106: PD sensor 200: signal conversion unit
300: wireless communication / interface unit 400: memory
500: control unit 600: alarm unit
700: Display part 800: Power part
900: IoT A: Controller

Claims (6)

And a PD sensor 106 attached to the outer case 105 and a voltage sensor 103 and a temperature sensor 104 built in the housing 102 of the connection member 101. The sensor signal measurement (100); A signal converting unit 200 for converting the analog signal Analog measured by the sensor signal measuring unit 100 into a digital signal; A wireless communication / interface unit 300 for transmitting the converted signal of the signal conversion unit 200 to a remote location; A memory 400 for storing set values of the temperature, voltage, and PD range of the normal state of the connection material; The measurement value converted by the signal conversion unit 200 is compared with a set value stored as a reference signal in the memory 400 to determine whether the measured value is within the temperature range of the steady state, the voltage difference range, or the PD range A control unit 500; An alarm unit 600 that sounds an alarm according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A display unit 700 for displaying the state of the connection member according to the driving control of the control unit 500 when the measured value is out of the normal temperature range, the voltage difference, and the PD range according to the determination result of the controller 500; A power supply unit 800 for supplying power to the controller device; IoT-based connection controller with smart sensor built-in IoT (900) which can transmit upper server. The PD sensor according to claim 1, wherein the voltage sensor (103) and the temperature sensor (104) are built in the connection member (101) Wherein the IoT-based connection controller includes a smart sensor. The measuring device according to claim 1, wherein the measurement signal of the sensor signal measuring unit (100) is measured by a voltage sensor (103) embedded in a housing (102) of a connection member (101), a temperature sensor PD sensor 106. The IoT-based connection controller includes a smart sensor. The smart sensor according to claim 1, wherein the set value stored as a reference signal in the memory (400) is 70 to 80 DEG C for temperature, 60 to 100 V for voltage, and 500 to 600 pC for PD. IoT based connection controller. The IoT-based connection controller according to claim 1, wherein the insulation layer (102) is a flame-retardant silicone rubber that is an insulator. 6. The IoT-based connection controller according to claim 5, wherein the insulation strength of the flame-retardant silicone rubber used as the insulation layer is 20 to 30 kV / mm.

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