Edge control terminal under unattended tunnel substation

Abstract

The utility model discloses an edge control terminal under an unattended tunnel transformer substation, relates to the technical field of highway tunnel management and control equipment, and aims to solve the problems of unreasonable structure, insufficient expansibility, incompatible interface design and the like of a controller in the prior art. The terminal adopts a 2U standard case design, is internally provided with a main control development board, a mechanical hard disk, a multifunctional integrated serial port circuit board, a switching power supply driving transformer and other core components, is equipped with a serial port screen port, an LAN interface, a 4G antenna interface, a 32P terminal port and an RS485 device interface, and supports access of various field devices and data acquisition. Through modularized hardware layout and standardized interface design, the stability and expansibility of the system are remarkably improved; meanwhile, remote OTA upgrading, multi-protocol compatibility and high-speed data transmission are supported, and the requirements of future technology development are met. The terminal has a comprehensive monitoring function of moving ring, fire protection and power equipment, supports remote opening and closing and intelligent alarm, and greatly reduces manual duty dependence and operation and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of highway tunnel management and control equipment, and in particular to an edge control terminal for an unattended tunnel substation. Background Technology

[0002] Unmanned tunnel operation is an important trend in modern tunnel management and maintenance, relying on advanced technologies and equipment to achieve automated monitoring and management of tunnels. Substations provide a stable and reliable power supply to the tunnel, ensuring the normal operation of lighting, ventilation, monitoring, and other equipment within the tunnel. Typically, tunnel substations are staffed with personnel on duty.

[0003] Currently, most control solutions for highway tunnel substations involve installing remote monitoring and control terminal equipment and intelligent communication management units inside the substation. These are then connected to the power monitoring computer at the tunnel monitoring station via Ethernet switches and fiber optic cables in a bus configuration. The main monitoring functions include monitoring the electrical parameters of transformers, high-voltage incoming and outgoing lines, low-voltage outgoing lines, generator incoming lines, fire pump and fan outgoing lines, UPS / EPS outgoing lines, and the status of various switches. Analysis of existing solutions reveals the following problems:

[0004] 1. The controller structure is unreasonable, such as chaotic hardware layout, excessive coupling between modules, and poor heat dissipation design; 2. The controller has insufficient scalability, such as inability to support the connection of new devices or the inability to upgrade software functions; 3. The controller interface design is unreasonable, such as incompatible communication protocols, low data transmission rate, and poor interface stability. Utility Model Content

[0005] This invention addresses the practical needs of highway tunnel management departments for information collection and remote control of substation equipment, and proposes an edge control terminal for unattended tunnel substations with a standardized system architecture that meets the access specifications of power monitoring instrument data acquisition platforms.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An edge control terminal for an unattended tunnel substation includes a 2U standard chassis. The 2U standard chassis is equipped with a serial port, a LAN interface, a 4G antenna interface, a 32P terminal block, an RS485 device interface, and a switching power supply socket. The 2U standard chassis contains a main control development board, a hard disk drive, a multi-functional integrated serial port circuit board, and a switching power supply drive transformer.

[0008] The main control development board is wired to the mechanical hard disk, multi-functional integrated serial port circuit board, switching power supply drive transformer, LAN interface, and 4G antenna interface, and is connected to the 4G antenna through the 4G antenna interface.

[0009] The multi-functional integrated serial port circuit board is wired to the switching power supply drive transformer, 32P terminal, RS485 device interface, and serial port screen. It connects to temperature and humidity sensors, fire-fighting equipment and / or power equipment through the 32P terminal, connects to field equipment through the RS485 device interface, and connects to a serial port screen through the serial port screen.

[0010] The switching power supply drive transformer is wired to the switching power supply socket and the serial port, and it is connected to the power supply cable through the switching power supply socket.

[0011] Furthermore, a temperature probe and a fan are installed inside the 2U standard chassis, and fan vents are provided on the chassis wall; the temperature probe and fan are wired to a multi-functional integrated serial port circuit board.

[0012] Furthermore, the 2U standard chassis is also equipped with a switch control button, which is wired to the switching power supply drive transformer.

[0013] Furthermore, the front wall of the 2U standard chassis has a serial port and two LAN interfaces; the rear wall of the 2U standard chassis has a fan vent, four 4G antenna interfaces, a 32P terminal block, an RS485 device interface, and a power supply socket.

[0014] The beneficial effects of this utility model are:

[0015] 1. Improve system stability and reliability: Modular hardware layout reduces coupling, and integrated temperature probes and fan-assisted cooling ensure the device operates at a suitable temperature. A switching power supply drive transformer provides stable voltage output, reducing failures caused by power fluctuations.

[0016] 2. Enhanced scalability and flexibility: Provides a variety of standardized interfaces, such as LAN, RS485, and 32P terminal blocks, to support the connection of new devices and remote OTA software upgrades to meet future technological development needs.

[0017] 3. Improved compatibility and communication efficiency: Compatible with multiple industrial communication protocols, such as Modbus and DL / T645, simplifying data interaction. The LAN interface supports Gigabit Ethernet, the RS485 device interface supports high-speed transmission, and wireless remote communication can be achieved by connecting a 4G antenna, ensuring real-time and accurate data transmission.

[0018] 4. Optimized user experience and operational efficiency: Connecting to a serial port display provides an intuitive interface, showing real-time device status and supporting parameter configuration. Remote monitoring and control are supported, allowing users to manage the device anytime, anywhere via a web interface, significantly improving operational convenience.

[0019] 5. Fully realize equipment monitoring and automated management: Support comprehensive information collection and status monitoring of environmental equipment, fire protection equipment, power equipment, electronic fences, access control and video surveillance to ensure safe operation of the tunnel.

[0020] 6. Eliminate reliance on manual monitoring and reduce operation and maintenance costs: Enables remote switching of power equipment and remote starting of diesel generators, reducing manual intervention. Intelligent alarms and log recording facilitate fault diagnosis, significantly reducing manual monitoring and operation and maintenance costs.

[0021] In summary, the edge control terminal of this unmanned tunnel substation provides an advanced, economical, and reliable solution for tunnel substations through efficient data acquisition, stable operation, and intelligent remote management, thus promoting the implementation of unmanned management models. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front structure of the edge control terminal of this utility model;

[0023] Figure 2 This is a schematic diagram of the rear structure of the edge control terminal of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the edge control terminal of this utility model;

[0025] Figure 4 This is a schematic diagram showing the connections of the various components of the edge control terminal of this utility model;

[0026] In the diagram, 1—2U standard chassis, 2—serial port, 3—LAN interface, 4—4G antenna interface, 5—32P terminal block, 6—RS485 device interface, 7—switching power supply socket, 8—main control development board, 9—hard disk drive, 10—multi-functional integrated serial port circuit board, 11—switching power supply drive transformer, 12—fan vent. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] For ease of explanation, spatial relative terms such as “above,” “below,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to dealing with the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be defined as being “above” other elements or features. Therefore, the exemplary term “below” can encompass both above and below. The device may be positioned in other ways, and the spatial relative descriptions used herein can be interpreted accordingly.

[0029] To address the problems of unreasonable controller structure, insufficient scalability, and incompatible interface designs in existing technologies, this embodiment provides an edge control terminal for unattended tunnel substations. For example... Figure 1 and Figure 2 As shown, the edge control terminal under the unattended tunnel substation includes a 2U standard chassis 1; the 2U standard chassis 1 is equipped with a serial port 2, a LAN interface 3, a 4G antenna interface 4, a 32P terminal block 5, an RS485 device interface 6, and a switching power supply socket 7; wherein, the front wall of the 2U standard chassis 1 has one serial port 2 and two LAN interfaces 3; the rear wall of the 2U standard chassis 1 is equipped with four 4G antenna interfaces 4, one 32P terminal block 5, one RS485 device interface 6, and one switching power supply socket 7.

[0030] like Figure 3 As shown, the 2U standard chassis 1 houses the main control development board 8, a mechanical hard disk 9, a multi-functional integrated serial port circuit board 10, and a switching power supply drive transformer 11. Figure 4 As shown, the main control development board 8 is wired to the hard disk drive 9, the multi-functional integrated serial port circuit board 10, the switching power supply drive transformer 11, the LAN interface 3, and the 4G antenna interface 4. The main control development board 8 is connected to a 4G antenna through the 4G antenna interface 4. The multi-functional integrated serial port circuit board 10 is wired to the switching power supply drive transformer 11, the 32P terminal block 5, the RS485 device interface 6, and the serial port panel 2. It connects to temperature and humidity sensors, fire-fighting equipment, and / or power equipment through the 32P terminal block 5, to field devices through the RS485 device interface 6, and to a serial port panel through the serial port panel 2. The switching power supply drive transformer 11 is wired to the switching power supply socket 7 and the serial port panel 2, and it connects to the power cord through the switching power supply socket 7.

[0031] The main control development board 8 uses a Rockchip RK3568 embedded processor with 4GB of memory and 32GB of storage. Based on the Linux operating system, it employs a multi-tasking architecture, enabling simultaneous data acquisition and control command transmission. Connected to a 4G antenna via the 4G antenna interface 4 or via a network cable through the LAN interface 3, the main control development board 8 can communicate with the tunnel's backend management system. This allows it to transmit monitoring data to the system and control commands from the system to various devices within the tunnel, including environmental monitoring equipment such as temperature and humidity sensors, water immersion sensors, ventilation equipment, and lighting equipment; fire protection equipment such as smoke detectors, fire alarms, and automatic fire extinguishing systems; power system equipment such as multi-function meters, inverters, UPS / EPS systems, transformer protection devices, line protection devices, reactive power compensation devices, DC power supply units, diesel generators; as well as electronic fences, access control systems, and cameras. The main control development board 8 stores the operating logs of all equipment in the highway tunnel substation via a mechanical hard drive 9, including system fault records, abnormal event alarm records, parameter configuration records, and remote control data records, for retrieval by the backend management system. After the main control development board 8 is connected to the 4G antenna via the 4G antenna interface 4, users can also view the monitoring data through the web interface.

[0032] To meet the needs of efficient data acquisition, equipment control, and power management and regulation of the edge control terminal in an unattended tunnel substation, a multi-functional integrated serial port circuit board 10 is added to the main control development board 8. The multi-functional integrated serial port circuit board 10 adopts the Xiling MLK-I-32 multi-functional integrated serial port circuit board, which connects to temperature and humidity sensors, water immersion sensors, ventilation equipment, lighting equipment, smoke detectors, fire alarm equipment, automatic fire extinguishing equipment, multi-functional meters, inverter equipment, UPS / EPS equipment, transformer protection devices, line protection devices, reactive power compensation devices, DC power supply devices, diesel generators, as well as electronic fence equipment, access control equipment, and cameras through the 32P terminal port 5 and RS485 device interface 6, enabling the main control development board 8 to acquire monitoring data of various devices in the tunnel.

[0033] In addition, the main control development board 8 is connected to the serial port 2 via the multi-functional integrated serial port circuit board 10, and then connected to the serial port screen via the serial port screen 2. The serial port screen can be a DWIN DMG12480C068_03WTC serial port screen. After connecting the serial port screen, the main control development board 8 can present the monitoring data in an intuitive way through the serial port screen, allowing users to view the monitoring data on-site and issue control commands directly to the main control development board 8 on-site.

[0034] For the power supply of the edge control terminal in an unattended tunnel substation, this embodiment installs a switching power supply drive transformer 11 in a 2U standard chassis 1. The switching power supply drive transformer 11 is a Mean Well LRS-75-12 type, connected to the main control development board 8 and the multi-functional integrated serial port circuit board 10. It is also connected to the serial port panel via serial port 2. When the switching power supply drive transformer 11 is connected to mains power via the power cord connected to the switching power supply socket 7, it converts the voltage, current, and power of the input power supply into the output parameters required by the main control development board 8, the serial port panel, and the multi-functional integrated serial port circuit board 10, thus meeting their power supply needs. Furthermore, as... Figure 4 As shown, in this embodiment, a switch control button is also provided on the 2U standard chassis 1. The switch control button is wired to the switching power supply drive transformer 11. The switch control button is used to control the power supply between the switching power supply drive transformer 11 and the mains power.

[0035] Furthermore, in this embodiment, the 2U standard chassis 1 is also equipped with an armored WRNK-191 temperature probe and a Delta 6CM fan. The chassis 1 has fan vents 12 on its walls. Figure 2 As shown, the fan vent 12 is located on the rear wall of the 2U standard chassis 1; the temperature probe and the fan are wired to the multi-functional integrated serial port circuit board 10. The multi-functional integrated serial port circuit board 10 has a threshold value. Based on the temperature data monitored by the temperature probe, the multi-functional integrated serial port circuit board 10 controls the fan to turn on when the temperature data is greater than the threshold value, so as to ensure the stable operation of the equipment.

[0036] In summary, the edge control terminal in this unattended tunnel substation reduces coupling between devices by employing an independent main control development board 8, a mechanical hard disk 9, a multi-functional integrated serial port circuit board 10, and a switching power supply drive transformer 11. Both the control development board and the multi-functional integrated serial port circuit board 10 utilize layered wiring PCBs to reduce signal interference, improving system stability and reliability. Combined with a temperature probe and fan cooling solution, this significantly enhances system stability and reliability, resolving the problem of unreasonable existing controller structures. The edge control terminal in this unattended tunnel substation is equipped with multiple flexible interfaces, including a LAN interface 3, a 4G antenna interface 4, a 32P terminal block 5, and an RS485 device interface 6, supporting remote OTA software upgrades, enhancing system scalability and flexibility, and addressing the issue of insufficient controller scalability. This edge control terminal is compatible with multiple industrial communication protocols such as Modbus and DL / T645. The LAN interface 3 supports Gigabit Ethernet, and the RS485 device interface 6 supports high-speed transmission. Connecting a 4G antenna enables wireless remote communication, improving data transmission rate and interface stability, enhancing system compatibility and communication efficiency, and resolving controller interface design incompatibility issues.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An unattended tunnel substation under edge control terminal, characterized in that: The edge control terminal under the unattended tunnel substation comprises a 2U standard case, a serial port screen port, a LAN interface, a 4G antenna interface, a 32P terminal port, an RS485 device interface and a switching power supply socket on the 2U standard case; A main control development board, a mechanical hard disk, a multifunctional integrated serial port circuit board and a switching power supply driving transformer are installed in the 2U standard case; The main control development board is wiredly connected with the mechanical hard disk, the multifunctional integrated serial port circuit board, the switching power supply driving transformer, the LAN interface and the 4G antenna interface, and the 4G antenna is connected through the 4G antenna interface; The multifunctional integrated serial port circuit board is wiredly connected with the switching power supply driving transformer, the 32P terminal port, the RS485 device interface and the serial port screen port, the temperature and humidity sensor, the fire-fighting equipment and / or the power equipment are connected through the 32P terminal port, the field equipment is connected through the RS485 device interface and the serial port screen is connected through the serial port screen port; The switching power supply driving transformer is wiredly connected with the switching power supply socket and the serial port screen port, and the power cord is connected through the switching power supply socket.

2. The unattended sub-tunnel transformer station under edge control terminal according to claim 1, characterized in that: A temperature probe and a fan are installed in the 2U standard case, and a fan vent is arranged on the case wall of the 2U standard case; the temperature probe and the fan are wiredly connected with the multifunctional integrated serial port circuit board.

3. The unattended sub-tunnel transformer station under edge control terminal according to claim 1, characterized in that: A switch control button is further arranged on the 2U standard case, and the switch control button is wiredly connected with the switching power supply driving transformer.

4. The unattended tunnel substation-under edge control terminal of claim 2, wherein: A serial port screen port and two LAN interfaces are arranged on the front case wall of the 2U standard case, and a fan vent, four 4G antenna interfaces, a 32P terminal port, an RS485 device interface and a switching power supply socket are arranged on the back case wall of the 2U standard case.

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