Electric power automation monitoring system for internal screen printing plate

Abstract

The utility model discloses an electric power automation monitoring system for an internal screen printing plate. The electric power automation monitoring system comprises a data acquisition unit, a data processing unit, a monitoring center unit, a network security unit, a user interaction unit and a power supply management unit. The monitoring center unit is electrically or wirelessly connected with the data acquisition unit, the data processing unit, the network security unit, the user interaction unit and the power management unit. According to the utility model, through integrated hardware design and optimized network architecture, efficient acquisition, processing, monitoring and management of the operation state of the power equipment are realized, the network security protection capability of the system is enhanced, the real-time performance, reliability and expansibility of the system are improved, and through cooperative work of all functional units, the system can be used for monitoring the operation state of the power equipment. Comprehensive technical support is provided for safe and stable operation of a power system, efficient data acquisition and processing are realized, fault alarm can be monitored in real time, a user interaction function is provided, and friendly user interaction experience is realized.

Description

Technical Field

[0001] This utility model relates to automated monitoring systems, and more particularly to an intranet-based power automated monitoring system. Background Technology

[0002] With the continuous development and increasing intelligence of power systems, power automation monitoring systems are playing an increasingly important role in the operation and management of power systems. Traditional power monitoring systems mainly rely on manual inspections and simple automated equipment, which have the following shortcomings: delays exist during data acquisition and transmission, making it impossible to reflect the real-time operating status of power equipment and failing to meet the real-time monitoring requirements of modern power systems. Existing technologies are weak in data processing and analysis, unable to effectively process and deeply analyze large amounts of real-time data, resulting in low monitoring accuracy and efficiency. For intranet-based power automation monitoring systems, with the development of network technology, they face increasing network security threats, lack effective network security protection measures, cannot be effectively expanded, and are unable to adapt to the rapid expansion of power system scale and the integration of new equipment, thus failing to meet requirements and urgently needing improvement. Summary of the Invention

[0003] The purpose of this utility model is to provide an intranet-based power automation monitoring system that achieves high efficiency, security, and intelligence, meets the requirements of modern power systems for monitoring systems, improves the operation and management level and reliability of power systems, and solves the shortcomings of existing technologies.

[0004] This utility model provides the following solution:

[0005] An intranet-based power automation monitoring system includes:

[0006] Data acquisition unit: used to collect operating status information of power equipment;

[0007] Data processing unit: used to receive and process the acquired power signals;

[0008] Monitoring center unit: Used to receive data processed by the data processing unit and perform real-time monitoring and fault alarms;

[0009] Network security unit: includes industrial control network security board, which is equipped with PCIe gold finger circuit, PCIe bus circuit, status indication circuit, drive power supply circuit, I / O circuit and storage circuit, used to acquire data from the monitoring center unit;

[0010] User interaction unit: used to input monitoring commands and display monitoring results;

[0011] Power Management Unit: Used to provide power to the intranet version of the power automation monitoring system;

[0012] The monitoring center unit is electrically or wirelessly connected to the data acquisition unit, data processing unit, network security unit, user interaction unit, and power management unit, respectively.

[0013] Furthermore, the data acquisition unit is connected to the data processing unit through a signal conditioning circuit, the data processing unit is connected to the monitoring center unit through a communication interface, and the monitoring center unit is connected to the network security unit and the user interaction unit through data interfaces respectively.

[0014] Furthermore, the signal conditioning circuit includes a low-pass RC filter unit.

[0015] Furthermore, the low-pass RC filter unit includes a comparator, the inverting input of the comparator is connected to the circuit input, a first resistor and a second resistor are connected in series between the inverting input of the comparator and the circuit input, the non-inverting input of the comparator is connected to one end of a third resistor, and the other end of the third resistor is grounded.

[0016] Furthermore, a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor are connected across the non-inverting and inverting inputs of the comparator. One end of the first capacitor is connected between the circuit input and the first resistor, and the other end is grounded. One end of the second capacitor is connected between the first resistor and the second resistor, and the other end is grounded. One end of the third resistor is connected between the second resistor and the inverting input of the comparator, and the other end is grounded. One end of the fourth capacitor is connected between the second resistor and the inverting input of the comparator, and the other end is connected between the non-inverting input of the comparator and the third resistor.

[0017] Furthermore, the data processing unit includes a microprocessor, a memory, an I / O interface, and a data bus. The microprocessor is connected to the data bus via the I / O interface, and the data bus is connected to the memory.

[0018] Furthermore, the monitoring center unit includes a monitoring server, an industrial switch, a storage device, an uninterruptible power supply (UPS), and a display device. The monitoring server, storage device, and display device are respectively connected to the industrial switch, and the power supply interface of the industrial switch is connected to the UPS.

[0019] Furthermore, in the network security unit, the PCIe gold finger circuit is connected to the data processing unit via the PCIe bus circuit, and the status indication circuit is connected to the data processing unit via the I / O circuit. The I / O circuit connects the status indication circuit, the data processing unit, and the communication service proxy forwarder.

[0020] Furthermore, it also includes a storage circuit, which is connected to the data processing unit via a data bus.

[0021] Furthermore, the user interaction unit is provided with a control panel, a touch unit, and an interface circuit, and the control panel is connected to the touch unit through the interface circuit.

[0022] This utility model has the following advantages compared with the prior art:

[0023] This utility model achieves efficient data acquisition, processing, monitoring, and management of power equipment operating status through integrated hardware design and optimized network architecture. It also strengthens the system's network security capabilities, improves its real-time performance, reliability, and scalability. Through the collaborative work of various functional units, it provides comprehensive technical support for the safe and stable operation of the power system, achieving efficient data acquisition and processing, real-time fault monitoring and alarm functions, and providing user interaction functions for a user-friendly experience. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the internal network version of the power automation monitoring system.

[0026] Figure 2 This is the circuit schematic of a low-pass RC filter unit.

[0027] Figure 3 This is a circuit block diagram of a network security unit. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figure 1 As shown, this utility model provides an intranet-based power automation monitoring system, including:

[0030] The data acquisition unit is used to collect operating status information of power equipment. It can acquire parameters such as current, voltage, and power, and convert the acquired signals into digital signals. Within the data acquisition unit, the sensors are connected to the input interface of the data processing unit via a signal conditioning circuit. This signal conditioning circuit includes an amplifier circuit, a filter circuit, and an analog-to-digital converter (ADC), used to amplify, filter, and convert the acquired analog signals. The conditioned digital signal is then transmitted via a data bus to the microprocessor in the data processing unit for further processing.

[0031] The data processing unit receives and processes the acquired digital signals, performing format conversion and storage. The data processing unit can connect to the monitoring server of the monitoring center unit via a high-speed Ethernet interface, an intranet communication link such as a wireless network, or an external network connection. The monitoring server receives the processed data and displays the monitoring results through human-machine interface devices (such as monitoring workstations, large-screen video walls, or monitors). The monitoring server can also communicate with other units via communication devices (such as industrial-grade switches) to ensure the coordinated operation of the system.

[0032] The data acquisition unit can collect key operating parameters of power equipment in real time and convert them into digital signals suitable for transmission and processing through signal conditioning circuits. The data processing unit receives and processes the digital signals, performs data filtering, analysis, and storage, ensuring that the monitoring system can respond quickly and provide accurate monitoring data. It can be seen that the data acquisition unit and the data processing unit work together to convert analog signals into digital signals, perform data filtering and storage, and ensure that the monitoring system can respond quickly and provide accurate monitoring information.

[0033] The monitoring center unit receives data processed by the data processing unit and performs real-time monitoring and fault alarms. The monitoring center unit contains a monitoring server. The data processing unit can connect to the monitoring server via a high-speed Ethernet interface, wireless network, or other intranet communication links or external network connections. The monitoring server receives the processed data and displays the monitoring results through human-machine interface devices (e.g., monitoring workstations, large-screen video walls, or monitors). The monitoring server can also communicate with other units via communication devices (e.g., industrial-grade switches) to ensure system collaboration. The monitoring center unit is electrically or wirelessly connected to the data acquisition unit, data processing unit, network security unit, user interaction unit, and power management unit. Connection methods include intranet communication links, twisted-pair cables, or wireless communication components to achieve data transmission and system collaboration.

[0034] The network security unit includes an industrial control network security board, which is equipped with PCIe gold finger circuitry, PCIe bus circuitry, status indicator circuitry, drive power supply circuitry, I / O circuitry, and storage circuitry. Through its internal hardware, the network security unit encrypts and securely protects the network communication of the monitoring system, preventing external attacks. The PCIe gold finger circuitry of the network security unit connects to the data processing unit via the PCIe bus circuitry, enabling high-speed data transmission. The status indicator circuitry of the network security unit connects to the monitoring server of the monitoring center unit via the I / O circuitry, displaying the operating status of the network security unit. The storage circuitry of the network security unit connects to the monitoring server via the data bus, used to store network security-related configuration information and log data.

[0035] User interaction unit: Used for inputting monitoring commands and displaying monitoring results. The control panel of the user interaction unit is connected to the microcontroller of the monitoring center unit via an interface circuit (such as a USB interface or PS / 2 interface) to receive monitoring commands input by the user. The display unit of the user interaction unit is connected to the microcontroller via a video interface (such as an HDMI, VGA, or LVDS interface) to display monitoring results and system status information, realizing data interaction and transmission.

[0036] Power Management Unit: Provides power to the intranet-based power automation monitoring system. The UPS (Uninterruptible Power Supply) in the Power Management Unit provides a stable power supply to the data acquisition unit, data processing unit, monitoring center unit, network security unit, and user interaction unit via power lines. It also provides grounding protection and signal isolation functions, ensuring the stability and reliability of the intranet-based power automation monitoring system.

[0037] By utilizing the intranet communication links and wired / wireless connections, the aforementioned functional units achieve efficient data transmission and collaborative operation of the monitoring system. These functional units feature an open architecture design, facilitating future expansion and the integration of new devices, and can adapt to the continuous growth of the power system's scale. This utility model's intranet-based power automation monitoring system can significantly improve the operation and management level of the power system, reduce maintenance costs, enhance system security and reliability, and meet the high requirements of modern power systems for automated monitoring.

[0038] like Figure 2 As shown, preferably, the data acquisition unit is connected to the data processing unit through a signal conditioning circuit, the data processing unit is connected to the monitoring center unit through a communication interface, and the monitoring center unit is connected to the network security unit and the user interaction unit through data interfaces respectively.

[0039] For example, the signal conditioning circuit includes a low-pass RC filter unit, which includes a comparator U1. The inverting input of the comparator U1 is connected to the circuit input Ui, and the circuit output Uo is connected across a fifth resistor R5. A fourth resistor R4 is connected in series between the non-inverting input of the comparator U1 and the fifth resistor R5. The comparator U1 has a positive power supply connection terminal V1+ and a negative power supply connection terminal V1-. A first resistor R1 and a second resistor R2 are connected in series between the inverting input of the comparator and the circuit input. The non-inverting input of the comparator U1 is connected to one end of a third resistor R3, and the other end of the third resistor R3 is grounded. A first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4 are connected across the non-inverting and inverting inputs of comparator U1. One end of the first capacitor C1 is connected between the circuit input and the first resistor R1, and the other end is grounded. One end of the second capacitor C2 is connected between the first resistor R1 and the second resistor R2, and the other end is grounded. One end of the third resistor R3 is connected between the second resistor R2 and the inverting input of comparator U1, and the other end is grounded. One end of the fourth capacitor C1 is connected between the second resistor R2 and the inverting input of comparator U1, and the other end is connected between the non-inverting input of comparator U1 and the third resistor R3. The low-pass RC filter unit of the signal conditioning circuit uses comparator U1 as the core component, along with multiple resistors (first resistor R1, second resistor R2, third resistor R3) and capacitors (first capacitor C1, second capacitor C2, third capacitor C3, fourth capacitor C4) to achieve signal filtering and conditioning. By precisely controlling the parameters of the circuit components, the quality of the input signal is improved, unnecessary high-frequency noise is removed, and the low-frequency components of the signal are maintained. This provides a more accurate and reliable signal for subsequent signal processing stages, improving signal quality, enhancing circuit stability and adaptability, and increasing the system's anti-interference capability. The use of standardized components and design makes it easy to integrate into more complex signal conditioning circuits, simplifying circuit design and debugging. It has a certain degree of versatility and adaptability, and can adapt to different signal sources and application scenarios, enhancing the system's flexibility.

[0040] In summary, the low-pass RC filter unit of the signal conditioning circuit utilizes a comparator U1 and a combination of multiple resistors and capacitors to achieve signal filtering and conditioning, improving signal quality and system stability. It effectively filters out high-frequency noise and interference from the input signal, allowing only low-frequency signals to pass, thereby improving signal purity and reliability. In addition to filtering, it can also condition the signal, such as amplifying and biasing, to meet the input requirements of subsequent circuits, ensuring stable signal transmission within the system. Through precisely designed resistor and capacitor values, it provides stable filtering effects, reducing system instability caused by signal fluctuations and improving the operational safety of the entire intranet-based power automation monitoring system.

[0041] Preferably, the data processing unit includes a microprocessor, a memory, an I / O interface (input / output interface), and a data bus. The microprocessor is connected to the data bus via the I / O interface, and the data bus is connected to the memory. The microprocessor, as the core of the data processing unit, is responsible for performing complex data processing tasks, including data filtering, analysis, and calculation. The microprocessor is connected to the data bus via the I / O interface to achieve data interaction with other hardware components. The data bus connects the microprocessor and the memory, ensuring fast data transmission and storage. In this invention, the microprocessor can adopt a multi-core architecture, such as the ARM Cortex-A series or the Intel Atom series, to meet the high requirements of power system monitoring for real-time performance and processing capabilities. The clock frequency of the microprocessor is typically above 1 GHz, enabling rapid processing of large amounts of real-time data. The memory includes random access memory (RAM) and non-volatile memory, such as flash memory or SSD. The RAM is used for temporary storage of data during processing to ensure high efficiency in data processing; the non-volatile memory is used to store important information such as configuration information, log data, and encryption keys. The memory is connected to the microprocessor via the data bus to ensure fast data read and write. The I / O interface is used to connect the microprocessor to other hardware devices such as data acquisition units, monitoring center units, and network security units. The I / O interface supports multiple communication protocols, including PCIe, USB, and Ethernet, to meet the connection needs of different devices. The data bus is the channel for data transmission within the data processing unit, employing high-speed differential signal transmission technology to ensure the stability and reliability of data transmission. In this invention, the bandwidth of the data bus is typically above 1Gbps, capable of meeting the rapid transmission of large amounts of data.

[0042] Preferably, the monitoring center unit includes a monitoring server, an industrial switch, a storage device, an uninterruptible power supply (UPS), and a display device. The monitoring server, storage device, and display device are respectively connected to the industrial switch, and the power supply interface of the industrial switch is connected to the UPS.

[0043] like Figure 3 As shown, preferably, in the network security unit, the PCIe gold finger circuit is connected to the data processing unit through the PCIe bus circuit. The PCIe gold finger circuit is used to realize high-speed data transmission. The status indicator circuit is connected to the data processing unit through the I / O circuit. The status indicator circuit is used to display the working status of the network security unit. The I / O circuit connects the status indicator circuit, the data processing unit, and the communication service proxy repeater. The function of the I / O circuit is to realize data input and output.

[0044] For example, the PCIe gold finger circuit includes a first PCIe connector, a second PCIe connector, and an LDO regulator. The first and second PCIe connectors are connected via a 100Mbps differential cable, and the second PCIe connector and the LDO regulator are connected via a power network. PCI Express (PCIe) is a universal serial connection standard used for high-speed data transmission between internal computer hardware components. It implements the physical connection of the PCIe interface, allowing rapid data exchange between various components within the system (such as processors, memory, storage devices, network interface cards, etc.), ensuring real-time data transmission and processing. The PCIe interface supports hot-swapping, allowing PCIe devices to be inserted or removed without restarting the system, reducing system downtime. The PCIe interface also supports various topologies, including point-to-point and switch topologies, enabling power automation monitoring systems to flexibly design and expand their hardware architecture as needed. The PCIe gold finger circuit also provides PCIe slots, providing the necessary power supply for the inserted card, simplifying system design and reducing the need for external power supplies, ensuring the stability and reliability of data transmission. The LDO regulator provides a stable low-voltage power supply to the entire PCIe gold finger circuit, ensuring stable circuit operation. In summary, the PCIe gold finger circuit in the network security unit can significantly improve data transmission efficiency and reliability, reduce system failure rates, enhance the level of automated monitoring in power systems, and meet the demands of modern power systems for efficient and stable monitoring.

[0045] Preferably, the system also includes a storage circuit, which is connected to the data processing unit via a data bus. The storage circuit stores and retrieves network security-related configuration information, log data, and encryption keys. The user interaction unit includes a control panel, a touch unit, and an interface circuit; the control panel is connected to the touch unit via the interface circuit. The user interaction unit provides an interactive platform between the external network and the internal network version of the power automation monitoring system. The storage circuit and user interaction unit ensure the secure storage of network security configurations, logs, and encryption keys, which is crucial for preventing unauthorized access and data leakage, especially when processing sensitive power system data. The power-loss protection function of the storage circuit ensures that critical data is not lost even in the event of a power failure, thereby improving system reliability and data integrity. The stored log data can be used for system maintenance and fault diagnosis, helping maintenance personnel quickly locate problems and take appropriate measures. The user interface provided by the user interaction unit allows users to easily input monitoring commands and view monitoring results, thereby improving the user experience. As a bridge between the outside world and the monitoring system, it enhances the system's interactivity, enabling users to communicate and control the system in real time. This not only improves the security, reliability, and user experience of the intranet version of the power automation monitoring system, but also enhances the system's interactivity and scalability.

[0046] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have a meaning consistent with their meaning in the relevant technical context and should not be interpreted in an idealized or overly formal sense unless specifically defined.

[0047] It should be noted that certain terms are used in the specification and claims of this utility model to refer to specific elements. Those skilled in the art will understand that different manufacturers or producers may use different terms to refer to the same element. The specification and claims of this utility model do not distinguish elements based on differences in terminology, but rather on differences in function.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the specification of this utility model.

[0049] In the description of this utility model, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the specific embodiments of this utility model.

Claims

1. An intranet-based power automation monitoring system, characterized in that, include: Data acquisition unit: used to collect operating status information of power equipment; Data processing unit: used to receive and process the acquired power signals; Monitoring center unit: Used to receive data processed by the data processing unit and perform real-time monitoring and fault alarms; Network security unit: includes industrial control network security board, which is equipped with PCIe gold finger circuit, PCIe bus circuit, status indication circuit, drive power supply circuit, I / O circuit and storage circuit, used to acquire data from the monitoring center unit; User interaction unit: used to input monitoring commands and display monitoring results; Power Management Unit: Used to provide power to the intranet version of the power automation monitoring system; The monitoring center unit is electrically or wirelessly connected to the data acquisition unit, data processing unit, network security unit, user interaction unit, and power management unit, respectively.

2. The intranet-based power automation monitoring system according to claim 1, characterized in that, The data acquisition unit is connected to the data processing unit through a signal conditioning circuit. The data processing unit is connected to the monitoring center unit through a communication interface. The monitoring center unit is connected to the network security unit and the user interaction unit through data interfaces.

3. The intranet-based power automation monitoring system according to claim 2, characterized in that, The signal conditioning circuit includes a low-pass RC filter unit.

4. The intranet-based power automation monitoring system according to claim 3, characterized in that, The low-pass RC filter unit includes a comparator. The inverting input of the comparator is connected to the circuit input. A first resistor and a second resistor are connected in series between the inverting input of the comparator and the circuit input. The non-inverting input of the comparator is connected to one end of a third resistor, and the other end of the third resistor is grounded.

5. The intranet-based power automation monitoring system according to claim 4, characterized in that, A first capacitor, a second capacitor, a third capacitor, and a fourth capacitor are connected across the non-inverting and inverting inputs of the comparator. One end of the first capacitor is connected between the circuit input and the first resistor, and the other end is grounded. One end of the second capacitor is connected between the first resistor and the second resistor, and the other end is grounded. One end of the third resistor is connected between the second resistor and the inverting input of the comparator, and the other end is grounded. One end of the fourth capacitor is connected between the second resistor and the inverting input of the comparator, and the other end is connected between the non-inverting input of the comparator and the third resistor.

6. The intranet-based power automation monitoring system according to claim 1, characterized in that, The data processing unit includes a microprocessor, a memory, an I / O interface, and a data bus. The microprocessor is connected to the data bus through the I / O interface, and the data bus is connected to the memory.

7. The intranet-based power automation monitoring system according to claim 1, characterized in that, The monitoring center unit includes a monitoring server, an industrial switch, a storage device, an uninterruptible power supply (UPS), and a display device. The monitoring server, storage device, and display device are respectively connected to the industrial switch, and the power supply interface of the industrial switch is connected to the UPS.

8. The intranet-based power automation monitoring system according to claim 1, characterized in that, In the network security unit, the PCIe gold finger circuit is connected to the data processing unit through the PCIe bus circuit, and the status indicator circuit is connected to the data processing unit through the I / O circuit. The I / O circuit connects the status indicator circuit, the data processing unit, and the communication service proxy forwarder.

9. The intranet-based power automation monitoring system according to claim 8, characterized in that, It also includes a storage circuit, which is connected to the data processing unit via a data bus.

10. The intranet-based power automation monitoring system according to claim 1, characterized in that, The user interaction unit includes a control panel, a touch unit, and an interface circuit. The control panel is connected to the touch unit via the interface circuit.

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