Lightweight network quality testing device

Abstract

A lightweight network quality testing device comprises a portable testing terminal, and a testing benchmark server and an application server which are connected with the portable testing terminal through a network, a test task is configured on the application server, test parameters are set, and the task is issued to the portable test terminal; the portable test terminal starts to execute a task and sends test traffic; when the portable test terminal sends the test flow, a data acquisition module in the reference server starts to acquire basic data of a link state, and uploads the acquired data to a database of the reference server; a data analysis module in the reference server compares the acquired time delay data with a standard rule and synchronizes an analysis result to the application server; and the application server adjusts the task to set the packet sending amount, and the process is cycled until the acquired link delay reaches the minimum standard of the VoIP telephone call delay. The method improves the operation and maintenance efficiency, enhances the troubleshooting capability, and guarantees the stable and reliable operation of the network.

Description

Technical Field

[0001] The present invention relates to the technical field of network service quality evaluation and bandwidth measurement, in particular to a network quality testing device and method performed in a state power grid substation network; and mainly to a lightweight network quality testing device. Background Art

[0002] In the current field of power network operation and maintenance, especially for network quality monitoring and evaluation of substations and power supply stations, there are many significant technical bottlenecks and limitations. First, with the rapid development of digital operation and maintenance, the demand for network resources has increased dramatically, but the existing network architecture (such as SDH and Gigabit Ethernet) has gradually been unable to meet the growing business needs in terms of bandwidth and reliability. In particular, the bandwidth of the branch ring link is limited, and network congestion and transmission delays often occur, affecting the normal operation of the business system.

[0003] Secondly, the existing network troubleshooting methods are single and inefficient. Operation and maintenance personnel mainly rely on special equipment provided by various manufacturers to perform ping tests. This method can only detect packet loss rate and latency, and cannot directly reflect the key indicator of effective bandwidth, nor can it detect the temperature information and routing path information of the substation. In addition, when remotely testing the intranet bandwidth, it is often interfered by various factors such as user location and terminal performance, resulting in a lack of accuracy and reliability in the test results.

[0004] Traditional network bandwidth testing methods require on-site installation of test equipment, which is not only time-consuming and labor-intensive, but also unable to achieve multi-point simultaneous testing, making it difficult to meet the needs of large-scale network operation and maintenance. At the same time, the testing process requires cooperation from both ends, which is inefficient, and the test cannot be performed anytime and anywhere, which limits the flexibility and timeliness of operation and maintenance work. Summary of the invention

[0005] In response to the above-mentioned technical problems, the present technical solution provides a lightweight network quality testing device, which realizes comprehensive, real-time, remote monitoring and testing of the network quality of substations, power supply stations and other places by integrating a test benchmark server, a portable test terminal, an application server, a database, a data analysis module and a data acquisition module, so as to improve the troubleshooting efficiency of operation and maintenance personnel and ensure stable and reliable operation of the network; it effectively solves the above-mentioned problems.

[0006] The present invention is achieved through the following technical solutions: A lightweight network quality testing device comprises a portable test terminal deployed in a transformer substation or a power supply station, or carried as a portable measuring instrument, and a test reference server and an application server connected to the portable test terminal via a network; a test task is configured on the application server, and test parameters are set; the task is sent to the portable test terminal, and the portable test terminal starts to execute the task and sends test traffic; while the portable test terminal sends the test traffic, a data acquisition module in the reference server starts to collect basic data of the link status, and uploads the collected data to a database of the reference server; a data analysis module in the reference server compares the collected delay data with standard rules, and synchronizes the analysis results to the application server; the application server then adjusts the task setting packet sending amount, and repeats this process until the collected link delay reaches the minimum standard of VoIP telephone call delay.

[0007] Furthermore, the portable test terminal includes an embedded processor unit, and a data storage unit connected to the processor unit, a power interface, a USB interface for system communication, and a network interface; the portable test terminal is used to remotely test network quality, perform network quality test tasks, simulate network communication environment, run network speed test tasks, and upload test results to a test benchmark server via the network; when there are multiple portable test terminals, a group of portable test terminals share a test benchmark server and application server.

[0008] Furthermore, the processor unit: uses a low-power, high-performance processor to ensure that complex network speed measurement algorithms can be quickly executed on lightweight hardware. The processor is responsible for processing the execution of all test tasks, data collection and upload and other core functions.

[0009] Furthermore, the network interface is equipped with two Ethernet interfaces, supporting access to a variety of network environments to ensure the flexibility and extensiveness of the test. The network interface is used to communicate with the test benchmark server, application server and other network devices.

[0010] Furthermore, the data storage unit is equipped with a certain capacity of SSD solid state storage unit, which is used to temporarily store the data and test results generated during the test. Although the main test data will be uploaded to the reference server in real time, the local storage can be used as data backup and temporary cache.

[0011] Furthermore, the power interface is connected to the power system to provide USB power supply to meet power supply requirements in different environments.

[0012] Furthermore, the USB interface is connected to the operating system to run a lightweight operating system, optimize resource usage, and improve system response speed.

[0013] Furthermore, the data acquisition module is a core software module of the reference server, which is specifically used to collect basic data of the link status in real time, such as latency, bandwidth utilization, available bandwidth, etc. The data acquisition module is also connected to the temperature sensor in the portable test terminal to monitor the ambient temperature and ensure the comprehensiveness of the network quality test.

[0014] Furthermore, the data acquisition module is responsible for collecting data from each portable test terminal, specifically: collecting test data from each portable test terminal in real time; transmitting the collected data to the database and data analysis module; verifying the collected data to ensure the accuracy and completeness of the data; during the data collection process, the system not only comprehensively collects key network performance indicators such as network delay, bandwidth utilization, and available bandwidth, but also deeply detects the details of the entire routing path to ensure a comprehensive evaluation of network quality.

[0015] Furthermore, the data acquisition module is connected to the temperature sensor of the portable test terminal to collect temperature information and monitor environmental parameters; monitoring of environmental parameters helps to promptly detect equipment performance degradation problems that may be caused by overheating of the computer room temperature environment, thereby further improving the comprehensiveness and accuracy of network quality testing.

[0016] Furthermore, the portable test terminal operates around the network quality test task, and the operation steps include: Step A: Task reception and execution: Receive the test task from the application server through the network, including test parameters and instructions. The portable test terminal starts to execute the network speed test task and send test traffic according to the task requirements; Step B: Data collection and upload: While sending the test traffic, the data collection module starts to collect basic data of the link status; the collected data is uploaded to the database of the benchmark server in real time to ensure the timeliness and accuracy of the data; Step C: Result feedback and adjustment: The data analysis module in the benchmark server compares the collected delay data with the standard rules and synchronizes the analysis results to the application server; the application server adjusts the task setting packet volume according to the analysis results, and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay; Step D: Environmental monitoring and alarm: The ambient temperature is monitored in real time through the temperature sensor. Once the temperature is found to be too high, an alarm is immediately issued. The alarm information is uploaded to the application server through the network to remind the operation and maintenance personnel to pay attention and take corresponding measures. Step E: Remote management and configuration: Support operation and maintenance personnel to remotely access and configure the portable test terminal through the application server; operation and maintenance personnel can remotely view the test progress, test results and equipment status to facilitate troubleshooting and maintenance.

[0017] Furthermore, the test benchmark server serves as the central management node of the portable test terminal, responsible for receiving and storing the test result collection data from each portable test terminal; at the same time, as a benchmark point for network quality testing, it provides a benchmark value for network speed measurement and a unified data handling rule management, which serves as a basis for network quality judgment, ensuring that each task execution has a standard to refer to; and stores all speed test results and benchmark data to facilitate the query and analysis of historical data; it supports remote access and configuration by operation and maintenance personnel to facilitate network quality testing.

[0018] Furthermore, the database is used to store all data during system operation, including operations of collecting data, analyzing data, configuration information and user data, and the collected data includes test benchmark data, real-time test data and historical test data; and interacts with the data analysis module, data collection module and application server through JDBC to provide data access services; by establishing fast indexes for frequently queried fields (such as timestamps, device IDs, test task IDs, etc.), fast query and retrieval of test data can be achieved, facilitating data analysis and troubleshooting; and data backup is performed regularly to ensure data security and integrity.

[0019] Furthermore, the data analysis module receives the test data uploaded from the portable test terminal and is responsible for processing and analyzing the collected data, specifically: performing statistical analysis on the network quality test results, processing broadband detection, generating a test analysis report, detecting network quality anomalies by comparing real-time test data with benchmark values; and predicting network performance trends based on historical data to assist in operation and maintenance decisions.

[0020] Furthermore, the application server acts as the central control unit of the system, interacts with the portable test terminals, sends notifications, displays reports, manages and schedules the speed measurement tasks of each portable test terminal; provides policy management and authority management functions to ensure the security of the system; is also responsible for processing user requests, including displaying the test interface, receiving test instructions, and requesting test results from the data analysis module; and provides a friendly user interface to facilitate operation and maintenance personnel to view and operate.

[0021] Furthermore, the workflow of the portable test terminal, the test reference server and the application server includes the steps of: Step 1: The operation and maintenance personnel deploy the portable test terminal in the substation or power supply station, or carry the portable test terminal to the location where the test is required; Step 2: The application server sends a test command to the portable test terminal through a one-key test operation function to perform network speed testing, and the portable test terminal uploads the test result to the test benchmark server; Step 3: The test benchmark server stores the test results, compares and analyzes the received test result data with the preset benchmark value, obtains the network quality change, and generates a network quality report; Step 4: The application server schedules and manages test tasks. Operation and maintenance personnel view and analyze test results through the application server interface and perform corresponding troubleshooting and maintenance.

[0022] Furthermore, the testing process and collection analysis statistics include the following steps: S1: Configure the test task on the application server and set the test parameters, such as the packet rate and packet size, to simulate data transmission in the actual network environment; send the task to the portable test terminal, and the portable test terminal starts to execute the task and send test traffic; S2: While the portable test terminal is sending test traffic, the data collection module starts collecting basic data of the link status, including latency and bandwidth utilization information, and uploads the collected data to the database; S3: The data analysis module compares the collected delay data with the standard rules for the minimum delay requirements of VoIP phone call quality, and synchronizes the analysis results to the application server. The application server adjusts the task setting packet volume and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay. The data analysis module combines the delay data and the packet data to calculate the available bandwidth that the current link can support; S4: The data analysis module stores the estimated available bandwidth as the benchmark data in the database; at the same time, all the collected basic link status data are also stored together for subsequent use as a standard reference; S5: The data analysis module verifies the stored benchmark data. Once the subsequent detection result is inconsistent with the current standard result, the link can be quickly located; the application server feeds back the analysis result to the operation and maintenance personnel as a reference for subsequent link status monitoring and troubleshooting. Beneficial Effects

[0023] The lightweight network quality testing device proposed in the present invention has the following beneficial effects compared with the prior art: The present invention realizes comprehensive, real-time, remote monitoring and testing of network quality in places such as substations and power supply stations by integrating test benchmark servers, portable test terminals, application servers, databases, data analysis modules and data acquisition modules, so as to improve the troubleshooting efficiency of operation and maintenance personnel and ensure stable and reliable operation of the network.

[0024] The present invention has lightweight portability through being deployed in a substation, a power supply station, or as a portable test terminal carried with a portable measuring instrument. The traditional test method requires two testers to carry laptops to both ends of the link to perform network quality testing. The present invention uses lightweight hardware and operating system. The installation and fixed position of the portable test terminal is directly hung on the side of the rack of the service switch of the bandwidth to be tested. It does not take up space and is small and light. The network quality test can be performed without any on-site operation by personnel. It is fast and efficient, and reduces personnel costs.

[0025] The present invention can monitor the working environment temperature of the equipment in real time through the built-in temperature sensor, and the operation and maintenance personnel can remotely grasp the actual temperature of each substation. Once the problem of overtemperature occurs, it can be quickly located and processed, so that the equipment has comprehensive environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a connection diagram of the lightweight network quality testing device of the present invention.

[0027] Figure 2 This is a technical architecture diagram of the lightweight network quality testing device of the present invention.

[0028] Figure 3 This is a diagram showing the internal structure of the portable test terminal of the present invention.

[0029] Numbers in the accompanying drawings: 1-processor unit, 2-mainboard unit, 3-data storage unit, 4-power interface, 5-network interface, 6-USB interface. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Under the premise of not departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solutions of the present invention should all fall within the protection scope of the present invention. Example 1

[0031] like Figure 1 and Figure 2 As shown, a lightweight network quality testing device includes: a portable testing terminal, a testing reference server, an application server, a database, a data analysis module, and a data acquisition module.

[0032] The portable test terminal is deployed in a substation or power supply station, or carried around as a portable measuring instrument; it includes an embedded processor unit, a data storage unit connected to the processor unit, a power interface, a USB interface for system communication, and a network interface.

[0033] Processor unit: A low-power, high-performance processor is used to ensure that complex network speed measurement algorithms can be quickly executed on lightweight hardware. The processor is responsible for handling all core functions such as the execution of test tasks, data collection and upload.

[0034] Network interface: Equipped with 2 Ethernet interfaces, it supports access to a variety of network environments to ensure the flexibility and extensiveness of the test. The network interface is used to communicate with the test benchmark server, application server and other network devices.

[0035] Data storage unit: Equipped with a certain capacity SSD solid-state storage unit, used to temporarily store the data and test results generated during the test. Although the main test data will be uploaded to the benchmark server in real time, local storage can be used as data backup and temporary cache.

[0036] Power interface: connected to the power system to provide USB power supply to meet the power supply needs in different environments.

[0037] USB interface: connects to the operating system, runs a lightweight operating system, optimizes resource usage, and improves system response speed.

[0038] Data collection module: As the core software module of the benchmark server, it is specifically used to collect basic data of link status in real time, such as latency, bandwidth utilization, available bandwidth, etc. The data collection module is also connected to the temperature sensor of the portable test terminal to monitor the ambient temperature and ensure the comprehensiveness of the network quality test.

[0039] The portable test terminal is used to remotely test network quality, perform network quality test tasks, simulate network communication environment, run network speed test tasks, and upload test results to the test benchmark server through the network; when there are multiple portable test terminals, a group of portable test terminals share a test benchmark server and application server.

[0040] The benchmark server is equipped with a data acquisition module, which is responsible for collecting data from each portable test terminal. Specifically, it collects the test data of each portable test terminal in real time; transmits the collected data to the database and data analysis module; verifies the collected data to ensure the accuracy and completeness of the data; during the data collection process, the system not only comprehensively collects key network performance indicators such as network delay, bandwidth utilization, and available bandwidth, but also deeply detects the details of the entire routing path to ensure a comprehensive evaluation of network quality.

[0041] The data acquisition module is connected to the temperature sensor of the portable test terminal to collect temperature information and monitor environmental parameters. Monitoring of environmental parameters helps to promptly detect equipment performance degradation problems that may be caused by overheating of the room temperature environment, thereby further improving the comprehensiveness and accuracy of network quality testing.

[0042] The portable test terminal operates around the network quality test task, and the operation steps include: Step A: Task reception and execution: Receive the test task from the application server through the network, including test parameters and instructions. The portable test terminal starts to execute the network speed test task and send test traffic according to the task requirements; Step B: Data collection and upload: While sending the test traffic, the data collection module in the benchmark server starts to collect basic data of the link status; the collected data is uploaded to the database of the benchmark server in real time to ensure the timeliness and accuracy of the data; Step C: Result feedback and adjustment: The data analysis module in the benchmark server compares the collected delay data with the standard rules and synchronizes the analysis results to the application server; the application server adjusts the task setting packet volume according to the analysis results, and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay; Step D: Environmental monitoring and alarm: The ambient temperature is monitored in real time through the temperature sensor. Once the temperature is found to be too high, an alarm is immediately issued. The alarm information is uploaded to the application server through the network to remind the operation and maintenance personnel to pay attention and take corresponding measures. Step E: Remote management and configuration: Support operation and maintenance personnel to remotely access and configure the portable test terminal through the application server; operation and maintenance personnel can remotely view the test progress, test results and equipment status to facilitate troubleshooting and maintenance.

[0043] The test benchmark server and application server are connected to the portable test terminal through the network; the test task is configured on the application server and the test parameters are set; the task is sent to the portable test terminal, and the portable test terminal starts to execute the task and sends the test traffic; while the portable test terminal sends the test traffic, the data acquisition module in the benchmark server starts to collect basic data on the link status and uploads the collected data to the database of the benchmark server; the data analysis module in the benchmark server compares the collected delay data with the standard rules and synchronizes the analysis results to the application server; the application server then adjusts the task setting packet volume and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay.

[0044] As the central management node of the portable test terminal, the test benchmark server is responsible for receiving and storing the test result collection data from each portable test terminal. At the same time, as the benchmark point for network quality testing, it provides benchmark values ​​for network speed measurement and unified data handling rule management as the basis for network quality judgment, ensuring that there are standards for reference for each task execution. It also stores all speed test results and benchmark data to facilitate the query and analysis of historical data. It supports remote access and configuration by operation and maintenance personnel to facilitate network quality testing.

[0045] The database is used to store all data during system operation, including operations such as data collection, data analysis, configuration information, and user data. The collected data includes test benchmark data, real-time test data, and historical test data. It interacts with the data analysis module, data collection module, and application server through JDBC to provide data access services. By establishing fast indexes for frequently queried fields (such as timestamps, device IDs, test task IDs, etc.), it is possible to quickly query and retrieve test data, facilitating data analysis and troubleshooting. Data backup is performed regularly to ensure data security and integrity.

[0046] The data analysis module receives the test data uploaded from the portable test terminal and is responsible for processing and analyzing the collected data. Specifically, it performs statistical analysis on the network quality test results, processes broadband detection, generates test analysis reports, and detects network quality anomalies by comparing real-time test data with benchmark values; based on historical data, it predicts network performance trends and assists in operation and maintenance decisions.

[0047] As the central control unit of the system, the application server interacts with the portable test terminals, sends notifications, displays reports, manages and schedules the speed test tasks of each portable test terminal; provides policy management and authority management functions to ensure the security of the system; is also responsible for processing user requests, including displaying the test interface, receiving test instructions, and requesting test results from the data analysis module; and provides a friendly user interface for operation and maintenance personnel to view and operate. Example 2

[0048] A network quality testing method is a method for using a lightweight network quality testing device in Example 1. The workflow of the portable test terminal, the test reference server and the application server includes the following steps: Step 1: The operation and maintenance personnel deploy the portable test terminal in the substation or power supply station, or carry the portable test terminal to the location where the test is required; Step 2: The application server sends a test command to the portable test terminal through a one-key test operation function to perform network speed testing, and the portable test terminal uploads the test result to the test benchmark server; Step 3: The test benchmark server stores the test results, compares and analyzes the received test result data with the preset benchmark value, obtains the network quality change, and generates a network quality report; Step 4: The application server schedules and manages test tasks. Operation and maintenance personnel view and analyze test results through the application server interface and perform corresponding troubleshooting and maintenance.

[0049] The specific test process and collection, analysis and statistics of steps 2 to 5 include the following steps: S1: Configure the test task on the application server and set the test parameters, such as the packet rate and packet size, to simulate data transmission in the actual network environment; send the task to the portable test terminal, and the portable test terminal starts to execute the task and send test traffic; S2: While the portable test terminal is sending test traffic, the data collection module starts collecting basic data of the link status, including latency and bandwidth utilization information, and uploads the collected data to the database; S3: The data analysis module compares the collected delay data with the standard rules for the minimum delay requirements of VoIP phone call quality, and synchronizes the analysis results to the application server. The application server adjusts the task setting packet volume and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay. The data analysis module combines the delay data and the packet data to calculate the available bandwidth that the current link can support; S4: The data analysis module stores the estimated available bandwidth as the benchmark data in the database; at the same time, all the collected basic link status data are also stored together for subsequent use as a standard reference; S5: The data analysis module verifies the stored benchmark data. Once the subsequent detection result is inconsistent with the current standard result, the link can be quickly located; the application server feeds back the analysis result to the operation and maintenance personnel as a reference for subsequent link status monitoring and troubleshooting.

[0050] In order to verify the feasibility and superiority of the above embodiments, the inventor provides actual operation cases for further explanation and verification.

[0051] Case background: The substation of a city power company is located on the edge of the city and is responsible for supplying power to multiple surrounding communities and industrial areas. With the expansion of business and the advancement of digital operation and inspection, the network resource demand of the substation has increased dramatically, but the existing network architecture has gradually exposed problems such as limited bandwidth, network congestion and transmission delay, which have affected the stable operation of the power system. Therefore, the power company decided to introduce the lightweight network quality test device to comprehensively monitor and test the network quality and ensure the reliability of the power supply network system.

[0052] Actual operation cases 1. System Deployment Equipment preparation: Deploy a portable test terminal in the substation to ensure that it can stably access the substation's local area network.

[0053] The test benchmark server and application server are remotely set up in the city company data center, and a network connection is established with the portable test terminal through secure means such as VPN.

[0054] Environment setup: Configure the test task on the application server and set the test parameters, including the packet rate of 500Mbps and the packet size of 1MB, to simulate data transmission in the actual network environment. Send the test task to the portable test terminal in the substation through the network.

[0055] 2. Test Execution One-click speed test: The operation and maintenance personnel start the network speed test through the one-click speed test function of the application server and send the test command to the portable test terminal. The portable test terminal starts to send test traffic, and the data collection module starts at the same time to collect basic data of the link status in real time, including latency, bandwidth utilization, etc.

[0056] Data upload: The data acquisition module of the benchmark server uploads the collected data to the database of the test benchmark server in real time. At the same time, the temperature sensor also collects the ambient temperature information in real time and uploads it to the database together.

[0057] 3. Data Analysis and Feedback Data analysis: The data analysis module in the test benchmark server receives the test data from the portable test terminal and performs statistical analysis and broadband detection processing. The collected delay data is compared with the minimum delay requirement of 150ms for VoIP phone call quality to detect whether the network quality meets the standard. The data analysis module also combines historical data to predict network performance trends and generate test analysis reports.

[0058] Results feedback: Once the link delay exceeds the minimum standard for VoIP phone call delay, the application server automatically adjusts the task setting packet volume and loops the test process until the link delay reaches the standard. Finally, the data analysis module of the speed benchmark server estimates the available bandwidth that the current link can support and stores the results in the database.

[0059] IV. Operation and maintenance decision-making and troubleshooting View test results: The operation and maintenance personnel view the test results and analysis reports through the application server interface. The report shows that in the initial test phase, the remaining link bandwidth was 942M. After running for 3 months, the latest test results show that the remaining link bandwidth is 780M, and the business data volume has increased by 162M bandwidth.

[0060] Troubleshooting: According to the test report and data analysis, the operation and maintenance personnel found that no new services were opened on the link. By checking the services connected to the switch, they found that there was a private bypass service, which caused the traffic to increase. Through remote configuration, the private bypass service was closed.

[0061] Retest: The test task was re-executed. The remaining bandwidth of the link after optimization was 942M, which was consistent with the baseline value. The operation and maintenance personnel confirmed that the risk had been eliminated.

[0062] Through this practical operation case, the network quality of the city's substation has been effectively improved, providing strong guarantees for the stable operation of the power system.

[0063] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the present invention.

Claims

1. A lightweight network quality testing device, characterized in that: It includes a portable test terminal deployed in a substation or power supply station, or carried as a portable measuring instrument, and a test benchmark server and an application server connected to the portable test terminal through a network; configure test tasks and set test parameters on the application server; The task is sent to the portable test terminal, and the portable test terminal starts to execute the task and send test traffic; While the portable test terminal is sending the test traffic, the data collection module in the benchmark server starts to collect basic data of the link status and uploads the collected data to the database of the benchmark server; the data analysis module in the benchmark server compares the collected delay data with the standard rules and synchronizes the analysis results to the application server; The application server then adjusts the task setting packet sending amount and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay.

2. A lightweight network quality testing device according to claim 1, characterized in that: The portable test terminal includes an embedded processor unit, a data storage unit connected to the processor unit, a power interface, a USB interface for system communication, and a network interface; Used to remotely test network quality, perform network quality test tasks, simulate network communication environment, run network speed test tasks, and upload test results to the test benchmark server via the network; When there are multiple portable test terminals, a group of portable test terminals share one test reference server and application server.

3. A lightweight network quality testing device according to claim 1 or 2, characterized in that: The data acquisition module is responsible for collecting data from each portable test terminal, specifically: collecting test data from each portable test terminal in real time; transmitting the collected data to the database and data analysis module, and verifying the collected data; During the data collection process, the system comprehensively collects key network performance indicators such as network delay, bandwidth utilization, and available bandwidth, and deeply detects the details of the entire routing path.

4. A lightweight network quality testing device according to claim 3, characterized in that: The data acquisition module communicates with the portable test terminal, collects temperature information through the temperature sensor, and monitors environmental parameters.

5. A lightweight network quality testing device according to claim 4, characterized in that: The portable test terminal operates around the network quality test task, and the operation steps include: Step A: Task reception and execution: Receive the test task from the application server through the network, including test parameters and instructions. The portable test terminal starts to execute the network speed test task and send test traffic according to the task requirements; Step B: Data collection and upload: While sending the test traffic, the data collection module in the benchmark server starts to collect basic data of the link status; the collected data is uploaded to the database of the benchmark server in real time to ensure the timeliness and accuracy of the data; Step C: Result feedback and adjustment: The data analysis module in the benchmark server compares the collected delay data with the standard rules and synchronizes the analysis results to the application server; the application server adjusts the task setting packet volume according to the analysis results, and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay; Step D: Environmental monitoring and alarm: The ambient temperature is monitored in real time through the temperature sensor. Once the temperature is found to be too high, an alarm is immediately issued. The alarm information is uploaded to the application server through the network to remind the operation and maintenance personnel to pay attention and take corresponding measures. Step E: Remote management and configuration: Support operation and maintenance personnel to remotely access and configure the portable test terminal through the application server; operation and maintenance personnel can remotely view the test progress, test results and equipment status to facilitate troubleshooting and maintenance.

6. A lightweight network quality testing device according to claim 1, characterized in that: The test reference server serves as the central management node of the portable test terminal, and is responsible for receiving and storing the test result collection data from each portable test terminal; at the same time, it serves as the reference point for network quality testing, providing the reference value of network speed measurement and unified data processing rule management as the basis for network quality judgment; And store all speed test results and benchmark data to facilitate historical data query and analysis; Supports remote access and configuration by operation and maintenance personnel; the database is used to store all data during system operation, and interacts with the data analysis module, data acquisition module and application server through JDBC to provide data access services; all data during system operation includes operations on acquisition data, analysis data, configuration information and user data, and the acquisition data includes test benchmark data, real-time test data and historical test data.

7. A lightweight network quality testing device according to claim 1 or 6, characterized in that: The data analysis module receives the test data uploaded from the portable test terminal and is responsible for processing and analyzing the collected data, specifically: statistical analysis of network quality test results, broadband detection processing, generating a test analysis report, and detecting network quality anomalies by comparing real-time test data with benchmark values; Based on historical data, network performance trend forecasts are carried out to assist operation and maintenance decision-making.

8. A lightweight network quality testing device according to claim 1, characterized in that: The application server is the central control unit of the system. It interacts with the portable test terminals, sends notifications, displays reports, manages and schedules the speed test tasks of each portable test terminal, and provides policy management and authority management functions. It is also responsible for processing user requests, including displaying the test interface, receiving test instructions, and requesting test results from the data analysis module. It provides a friendly user interface to facilitate operation and maintenance personnel to view and operate.

9. A lightweight network quality testing device according to claim 1, characterized in that: The workflow of the portable test terminal, the test reference server and the application server comprises the following steps: Step 1: The operation and maintenance personnel deploy the portable test terminal in the substation or power supply station, or carry the portable test terminal to the location where the test is required; Step 2: The application server sends a test command to the portable test terminal through a one-key test operation function to perform network speed testing, and the portable test terminal uploads the test result to the test benchmark server; Step 3: The test benchmark server stores the test results, compares and analyzes the received test result data with the preset benchmark value, obtains the network quality change, and generates a network quality report; Step 4: The application server schedules and manages test tasks. Operation and maintenance personnel view and analyze test results through the application server interface and perform corresponding troubleshooting and maintenance.

10. A lightweight network quality testing device according to claim 9, characterized in that: The test process and collection analysis statistics of the lightweight network quality test device include the following steps: S1: Configure the test task on the application server and set the test parameters, such as packet sending rate and packet sending size, to simulate data transmission in the actual network environment; The task is sent to the portable test terminal, and the portable test terminal starts to execute the task and send test traffic; S2: While the portable test terminal is sending the test traffic, the data collection module in the benchmark server starts to collect basic data of the link status, including latency and bandwidth utilization information, and uploads the collected data to the database; S3: The data analysis module compares the collected delay data with the standard rules for the minimum delay requirements of VoIP phone call quality, and synchronizes the analysis results to the application server. The application server adjusts the task setting packet volume and repeats this process until the collected link delay reaches the minimum standard for VoIP phone call delay. The data analysis module combines the delay data and the packet data to calculate the available bandwidth that the current link can support; S4: The data analysis module stores the estimated available bandwidth as the benchmark data in the database; at the same time, all the collected basic link status data are also stored together for subsequent use as a standard reference; S5: The data analysis module verifies the stored benchmark data. Once the subsequent detection result is inconsistent with the current standard result, the link can be quickly located; the application server feeds back the analysis result to the operation and maintenance personnel as a reference for subsequent link status monitoring and troubleshooting.

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