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KR-102961412-B1 - ACCESS SECURITY AUTOMATED UNMANNED SUBSTATION SYSTEM

KR102961412B1KR 102961412 B1KR102961412 B1KR 102961412B1KR-102961412-B1

Abstract

The access security automated unmanned substation system of the present invention may include: a vehicle access security WRC terminal mounted inside a vehicle, which acquires identity verification information of an accesser who has boarded the vehicle for access to the unmanned substation and receives a request for access to the unmanned substation from the accesser; an encrypted relay transceiver that performs encrypted wireless short-range data communication with the vehicle access security WRC terminal and performs Ethernet data communication with the access security equipment below to relay tasks for access to the unmanned substation; and an access security equipment that verifies the identity of the accesser from the identity verification information and opens and closes the main gate of the unmanned substation for the access of the vehicle.

Inventors

  • 박찬문
  • 이종영
  • 최재명
  • 이성환

Assignees

  • 한국전력공사
  • 주식회사 지노디엠

Dates

Publication Date
20260511
Application Date
20210528

Claims (16)

  1. A vehicle access security WRC terminal installed inside a vehicle, which acquires identity verification information of a person boarding the vehicle for access to an unmanned substation and receives a request for access to the unmanned substation from the person. An encrypted relay transceiver that performs encrypted wireless short-range data communication with the above-mentioned vehicle access security WRC terminal and performs Ethernet data communication with the following access security equipment to relay tasks for access to an unmanned substation; and Access security equipment that verifies the identity of the entrant from the above identity verification information and opens and closes the main gate of the above unmanned substation for the entry and exit of the above vehicle Includes, The above access security equipment is, A vehicle detection device having loop coils respectively installed on the front and rear paths of the vehicle entrance/exit gate of the unmanned substation to detect the entry and exit of the vehicle from a detection signal at the unmanned substation; An external output device that visually or audibly outputs information related to entry or security to people near the main gate of the above-mentioned unmanned substation; A gate motor control device for opening or closing the gate of the above-mentioned unmanned substation in an electric manner; and An ACU interface device that forms an Ethernet communication channel with the above-mentioned encrypted relay transceiver, is equipped with hardware input/output terminals for the vehicle detection device, the external output device, and the gate motor control device, respectively, and controls data transmission and interoperability between the access security equipment, the vehicle detection device, the external output device, and the gate motor control device. Includes, The above ACU interface device is, Among the above loop coils, the loop coil located outside the vehicle entrance of the above unmanned substation is used for the purpose of detecting unauthorized parking, When it is detected that an unauthorized parked vehicle is present in front of the main gate for vehicle entry to the unmanned substation, a warning broadcast regarding the unauthorized parking is performed through the aforementioned external output device, and If the vehicle in question does not move even after the standard waiting time has elapsed following the warning broadcast, notify an external agency such as a police station, but An access security automated unmanned substation system that notifies as an emergency action request if an application for access to the unmanned substation exists within the standard scheduled time at the time of notification.
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  3. In paragraph 1, The above identity verification information is the employee ID card information of the above entrant, and The above vehicle access security WRC terminal is, A Bluetooth communication unit that performs data communication with the above-mentioned encrypted relay transceiver; A SAM authentication unit that authenticates the authenticity of an NFC card-type or mobile application-type employee ID; and A control unit that receives instructions from the aforementioned boarding passenger. An access security automated unmanned substation system including
  4. In paragraph 3, The above SAM certification unit is, SAM as an independent HW or SW module that performs authenticity verification for the above employee ID card; NFC tag that performs data communication with the above employee ID card; and SAM authentication unit performing mutual authentication with the above SAM An access security automated unmanned substation system including
  5. In paragraph 3, The above operating unit is, A rearmament button that directs the rearmament of an unmanned substation following eviction; and Manual operation button indicating a switch to manual operation An access security automated unmanned substation system including
  6. In paragraph 3, The above vehicle access security WRC terminal is, A mobile phone charging unit for charging a mobile phone loaded with the above-mentioned mobile application-type employee ID. An access security automated unmanned substation system that further includes
  7. In paragraph 3, The above-mentioned encrypted relay transceiver is, A Bluetooth communication module that performs data communication with the above-mentioned vehicle access security WRC terminal; A decryption module for decrypting a Bluetooth communication packet encrypted with SEED using the above employee ID information; and Ethernet communication module that performs data communication with the above-mentioned ACU interface device An access security automated unmanned substation system including
  8. In Paragraph 7, The above ACU interface device is, An Ethernet communication module that performs data communication with the above-mentioned encrypted relay transceiver and an external access control server; and Interlocking control module controlling unmanned substation devices for vehicle access control An access security automated unmanned substation system including
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Description

Access Security Automated Unmanned Substation System The present invention relates to an automated access security device and an automated access security method for an unmanned substation that perform access security procedures for vehicles entering and exiting the unmanned substation based on IoT. Most recently constructed unmanned substations are remotely monitored and controlled from dispatch substations, and management systems are operated at the unmanned substations to monitor and control the site. A conventional unmanned substation management system is operated by providing an Alarm Interface Unit (AIU) into which data signals transmitted from security and fire detectors are input; a video transmission system connected to the communication module of the AIU to control video surveillance; an alarm receiver into which surveillance information output from the AIU is input; a Supervisory Control and Data Acquisition (SCADA) system for remote monitoring via data transmitted from the AIU; a security service system installed at a company responsible for security of the unmanned substation to output armament signals to switch security devices to an alert state; an access control system that receives armament signals from the security service system to control access to the main gate and entrance; and an armament port expander to transmit control signals from the AIU to each facility. In this management system, the alarm reception linkage panel, alarm receiver panel, and weapon port expander are installed in a complex structure, and similar functions operate in conjunction with each other. Furthermore, since the production of the aforementioned alarm receiving panel has been discontinued, management such as maintenance is difficult, and managing access control is challenging because it is inevitable to release the security alert state if the access control system malfunctions or the burglary and fire detectors malfunction. Figure 1 is a flowchart showing the process of obtaining prior entry permission for an unmanned substation in Korea. Currently, the system operates in such a way that when company employees managing unmanned substations apply for access to the unmanned substation via the internal (KEPCO) integrated access control system or external visitors via the external e-access control system, the application is automatically distributed to the supervisory department for a preliminary review, followed by a final review and approval of access by the security department, thereby completing the pre-access authorization procedure for the unmanned substation. Internal employees can access the unmanned substation using their employee ID cards, while external visitors can access it using their assigned access cards, but this process takes a considerable amount of time. In particular, while unmanned substations are not frequently accessed, they require a very high level of security for access control as self-protected national security facilities, making it difficult to implement drive-through access control. Furthermore, the infrequent entry and the absence of permanent personnel led to frequent misuse of the vehicle entrances to unmanned substations by illegally parked vehicles, which further became an obstacle for personnel entering for maintenance. I will now examine in detail the issues briefly discussed earlier regarding vehicle access to unmanned substations, such as inconvenience, high costs, and low efficiency. Figure 2 is a flowchart illustrating the processes from entry to exit of an unmanned substation using a vehicle according to current business procedures. As described above, the implementation of a total of 14 steps, from the arrival of maintenance vehicles to entry and exit from the substation, can exacerbate inconvenience for visitors, particularly during rain, snow, and winter. Numerically, an average delay of 20 minutes (10 minutes for entry, 10 minutes for exit) in vehicle entry and exit leads to constant dissatisfaction among visitors, and there is a high likelihood that equipment restoration will be delayed due to entry and exit issues in the event of equipment failure or power outages. (Entry: 14 steps, Exit: 24 steps) Figures 3a and 4b are reference diagrams and related case photos showing the unsuitable entry condition due to temporary parking in front of the main gate of an unmanned substation. The areas where such situations occur—such as substations adjacent to downtown traffic congestion, commercial districts, knowledge industry centers, and construction sites—are unsuitable for temporary parking. Specifically, the limited parking space causes vehicles to occupy sidewalks and obstruct pedestrian traffic, increasing the risk of traffic accidents caused by drivers and the threat of injury from sudden collisions with vehicles traveling on main roads. Furthermore, the risk of traffic accidents increases when pedestrians walk on the roadway by having to walk around blocked sidewalks. R