A method, device and medium for detecting wireless coverage capability of a wireless node

Abstract

The present application relates to a kind of wireless node wireless coverage capability detection method, equipment and medium, wherein the method comprises: the radio frequency connection between test tool and the node to be measured is built, radio frequency connection includes control channel connection and test channel connection, attenuation ware is arranged in test channel connection;Test tool passes through control channel connection and issues into test instruction and activation channel edition instruction to the node to be measured, so that it enters the mode of operation with service, and receives first reply packet;Through test channel connection, issue reply packet data instruction, execute multiple rounds in loop, receive second reply packet;According to second reply packet, the packet loss rate and average signal strength are determined, the transmitting power and receiving sensitivity of the node to be measured are determined.Compared with prior art, the present application realizes the accurate quantitative detection of transmitting power and receiving sensitivity of wireless node by the loop reply packet statistics under the mode of operation with service.

Description

Technical Field

[0001] This invention relates to the field of Internet of Things (IoT) technology, and in particular to a method, device, and medium for detecting the wireless coverage capability of wireless nodes that conforms to the consistency requirements of wireless sensor network protocols. Background Technology

[0002] Against the backdrop of the rapid development of power Internet of Things (IoT) technology, wireless nodes of power transmission and transformation equipment (hereinafter referred to as "wireless nodes") serve as the core carriers for status monitoring and data transmission of power transmission and transformation equipment. Their wireless coverage capability directly determines the communication stability and data transmission reliability of the power transmission and transformation equipment IoT, thereby affecting the safe and efficient operation of the power system. The core evaluation indicators of wireless coverage capability include transmission power and receiving sensitivity. The test results of these two are key criteria for judging whether wireless nodes meet industry standards and can meet field deployment requirements.

[0003] Currently, clear technical specifications have been issued in the field of power Internet of Things (IoT). Among them, Q / GDW 12083—2021 "Technical Specification for Wireless Node Equipment of Internet of Things for Transmission and Transformation Equipment" clearly stipulates the performance requirements of wireless nodes under normal working conditions, such as transmission power and receiving sensitivity. Q / GDW 12020—2019 "Communication Protocol for Low-Power Wireless Network of Internet of Things for Transmission and Transformation Equipment" standardizes the communication message format between wireless nodes and testing tools, providing a standard basis for wireless coverage capability testing.

[0004] In existing technologies, the testing of wireless coverage capabilities for wireless nodes mostly employs general-purpose wireless communication testing platforms. These platforms primarily test the communication software modules or hardware performance of the wireless node individually, without considering the service-carrying operating mode of the wireless node in actual applications. Specifically, existing testing platforms cannot put the wireless node into a normal service-carrying operating state that meets the requirements of the Q / GDW 12083—2021 standard during the testing process. They can only perform performance testing under no-service load conditions, resulting in a significant deviation between the test results and the actual coverage capability of the wireless node during operation. This fails to accurately reflect the communication performance of the wireless node when operating with services in the field.

[0005] Meanwhile, existing testing methods, in terms of transmit power testing, do not specifically test the dedicated frequency bands (470MHz-510MHz and 2400MHz-2483.5MHz) for power transmission and transformation IoT, nor do they clearly define the power configuration requirements for different frequency bands, making it difficult to meet the State Grid's enterprise standards for precise specifications of wireless node transmit power. In terms of receive sensitivity testing, there is a lack of standardized testing environment setup schemes, the channel connection methods between test tools and wireless nodes are not standardized, the reasonable configuration and connection logic of shielding boxes, RF combiners, and attenuators are not clearly defined, and there is a lack of unified standards for the process of wireless nodes parsing and executing test commands, resulting in poor accuracy and repeatability of receive sensitivity testing, and failing to reliably support the batch testing needs of wireless nodes and sensors that comply with State Grid standards.

[0006] Furthermore, existing testing methods have not formed a complete standardized testing process, the structural design of testing modules does not meet the specific needs of power transmission and transformation Internet of Things, and there is a lack of special testing modules for business models, resulting in low testing efficiency and poor consistency of testing results, making it difficult to meet the actual needs of large-scale deployment of power Internet of Things for efficient and accurate testing of wireless node wireless coverage capabilities.

[0007] A search revealed that application publication number CN117118878A discloses a method and apparatus for testing the conformance of a power wireless sensor network protocol. This scheme sends multi-parameter configuration instructions to the sensor under test in the test platform. The configuration instructions reach the sensor under test through several relay nodes and trigger it to execute multiple configuration functions. By acquiring log information from the sensor under test and several relay nodes, the test results corresponding to the configuration instructions are obtained based on the log information, and multi-index mutual verification is used to improve the test accuracy. However, this method relies on the collection and integration of simulated nodes and log information, has high configuration requirements for the test platform, and can only verify the correctness of the execution of protocol instructions, but cannot quantitatively evaluate the wireless coverage capability of the communication device.

[0008] Therefore, how to accurately detect the wireless coverage capability of IoT wireless nodes for power transmission and transformation equipment under business operation mode is a technical problem that needs to be solved. Summary of the Invention

[0009] The purpose of this invention is to overcome the defects of the prior art and provide a method, device and medium for detecting the wireless coverage capability of wireless nodes that meets the consistency requirements of wireless sensor network protocols.

[0010] The objective of this invention can be achieved through the following technical solutions: According to a first aspect of the present invention, a method for detecting the wireless coverage capability of a wireless node is provided, comprising the following steps: Establish an RF connection between the test tool and the node under test, the RF connection including a control channel connection and a test channel connection, and set an attenuator in the test channel connection; The testing tool sends an entry test command and an activation channel version command conforming to the wireless sensor network protocol to the node under test through the control channel connection, so that the node under test enters the service working mode, and receives the first response packet fed back by the node under test through the control channel connection. The testing tool sends a data return instruction to the node under test through the testing channel, receives the second data return from the node under test in response to each data return instruction, and repeats the sending and receiving process until a preset number of rounds. Based on the received second packet, the packet loss rate and average signal strength are calculated to determine the transmit power and receive sensitivity of the node under test.

[0011] As a preferred technical solution, the test channel connection includes a low-power test channel and a low-power test channel. The test tool and the node under test are connected in series with the attenuator after the low-power test channel and the low-power test channel are combined by an RF combiner.

[0012] As a preferred technical solution, the attenuator consists of two attenuators connected in series, used to simulate the equivalent path loss over a maximum coverage distance of 5 kilometers.

[0013] As a preferred technical solution, when the test tool receives the first return packet through the control channel connection, if the reception times out, it is determined that the test fails, and the test result of too low transmission power or insufficient reception sensitivity is output according to the current test type.

[0014] As a preferred technical solution, the preset number of rounds is 100. In each round of testing, the testing tool first sends the return packet data instruction once through the test channel connection, and then receives the corresponding second return packet. After receiving the correct return packet or the packet receiving timeout occurs, it enters the next round.

[0015] As a preferred technical solution, when the testing tool receives the second return packet, if it receives an incorrect packet, it is considered that no packet has been received and is included in the packet loss statistics; and the testing tool calculates the signal strength of the second return packet received in each round.

[0016] As a preferred technical solution, determining the transmit power and receive sensitivity of the node under test specifically includes: When performing transmit power detection, the actual transmit power of the node under test is calculated based on the signal strength of the second return packet received by the test tool; When performing receiver sensitivity testing, the receiver sensitivity of the node under test is determined by the packet loss rate based on the equivalent path loss corresponding to the attenuation amount set by the attenuator.

[0017] As a preferred technical solution, in the receiver sensitivity detection, the attenuation amount of the attenuator is set according to the receiver sensitivity standard value so that the signal strength received by the node under test is equal to the standard value. If the packet loss rate is lower than a preset threshold, the receiver sensitivity of the node under test is determined to meet the standard.

[0018] According to a second aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the program to implement the method described thereon.

[0019] According to a third aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method described thereon.

[0020] Compared with the prior art, the present invention has the following advantages: 1. This invention establishes a radio frequency connection that separates the control channel and the test channel, issues commands based on the wireless sensor network protocol to enable the node under test to enter the service-enabled working mode, and completes the wireless coverage capability determination through cyclic packet return testing, thereby achieving accurate detection of the wireless node in its actual working state.

[0021] 2. This invention adopts an RF connection architecture in which the control channel is directly connected and the test channel is connected in series with a combiner and an attenuator. An attenuator is set in the test channel to simulate the actual coverage path loss, thus building a standardized testing environment and improving the stability and repeatability of the test.

[0022] 3. This invention flexibly adopts packet loss rate or average signal strength as the judgment basis according to the test type. When performing transmit power detection, the actual transmit power is accurately calculated based on the return packet signal strength. When performing receive sensitivity detection, the equivalent path loss and packet loss rate threshold set by the attenuator are used to accurately determine whether the sensitivity meets the standard, thus realizing the accurate quantitative evaluation of the core indicators of wireless coverage capability.

[0023] 4. This invention adopts a command interaction method that conforms to the wireless sensor network protocol. The detection process and command format are adapted to industry standards, ensuring the protocol consistency of the detection process and avoiding detection failure caused by command incompatibility.

[0024] 5. This invention uses a preset number of cyclic packet return tests to statistically analyze packet loss rate and signal strength, which can effectively avoid single test errors and improve the representativeness of detection data and the reliability of detection results.

[0025] 6. The detection process of this invention can be automated without manual intervention. The detection process is standardized and reproducible, which can meet the needs of large-scale batch detection of wireless nodes and effectively improve detection efficiency. Attached Figure Description

[0026] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

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

[0028] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0029] Example 1 This embodiment provides a method for detecting the wireless coverage capability of wireless nodes that meets the consistency requirements of wireless sensor network protocols. It is used to detect the transmission power and receiving sensitivity of wireless nodes in power transmission and transformation equipment Internet of Things to evaluate their wireless coverage capability.

[0030] The method of the present invention includes the following steps: Step S1: Set up the testing environment.

[0031] The testing tools and the node under test are placed inside a shielded enclosure. The enclosure isolates external radio frequency signal interference, ensuring the stability of the testing environment and meeting the high-precision testing requirements of wireless nodes in the power transmission and transformation IoT system. The testing environment is compatible with the dedicated frequency bands for power transmission and transformation IoT, including 470MHz-510MHz and 2400MHz-2483.5MHz.

[0032] Establish an RF connection between the test tool and the node under test. This RF connection includes a control channel connection and a test channel connection, with an attenuator configured in the test channel connection. Specifically: Control channel connection: The control channel of the test tool is directly connected to the control channel of the node under test (DUT) via an RF cable, without passing through an attenuator. This control channel is used to send commands and receive responses. Preferably, the DUT establishes a control channel connection with the test tool via a northbound test interface using an SMA RF cable to ensure stable channel transmission. Test channel connection: The test channels include a low-power test channel and a low-power test channel. The test tool and the node under test (DUT) combine the low-power test channel and the low-power test channel via an RF combiner, and then connect them in series with an attenuator. Preferably, the attenuator consists of two attenuators connected in series to simulate the equivalent path loss over a maximum coverage distance of 5 kilometers.

[0033] If a receiver sensitivity test is to be performed, the attenuation amount should be set according to the standard value of receiver sensitivity through the attenuator so that the signal strength received by the node under test on the test channel connection is equal to the standard value of receiver sensitivity.

[0034] Step S2: Start the test.

[0035] The testing tool sends "Enter Test Command" and "Activate Channel Version Command" conforming to the wireless sensor network protocol to the node under test through the control channel connection, enabling the node under test to enter the service-enabled working mode, that is, the state in which it can normally send and receive service data, which is consistent with the actual working state of the node in the field with service operation, and receives the first feedback packet from the node under test through the control channel connection.

[0036] The format of the "Enter Test Command" conforms to Q / GDW 12020-2019 "Internet of Things Low Power Wireless Network Communication Protocol for Power Transmission and Transformation Equipment". The "Activate Channel Version Command" is a custom extension based on this protocol, used to activate the low power test channel and low power test channel of the node under test, so that the node under test can enter the working state that can respond to the subsequent "Return Packet Data" command and generate the second return packet.

[0037] After each instruction is issued, the test tool receives the corresponding response packet from the node under test. If the reception of the first response packet times out, the test is directly deemed to have failed, and the test result of "transmit power too low" or "receive sensitivity not reached the attenuation value" is output according to the current test type.

[0038] Step S3: Perform a return packet test.

[0039] The testing tool sends a "return packet data" command to the node under test via the test channel connection, receives the second return packet from the node under test in response to each "return packet data" command, and repeats the sending and receiving process in a loop until a preset number of rounds are reached.

[0040] In this embodiment, the preset number of rounds is 100 to avoid single-test errors and improve the representativeness of the detection data and the reliability of the detection results. In each round of testing, the testing tool first sends a "return packet data" command through the test channel connection, and then receives the corresponding second return packet. After receiving a correct return packet or a packet reception timeout, it enters the next round. If an incorrect packet is received, it is considered that no packet was received and is included in the packet loss statistics. At the same time, the testing tool calculates the signal strength of the second return packet received in each round, providing data support for subsequent calculation and analysis of transmit power and receive sensitivity.

[0041] Step S4: Determine the test results.

[0042] The testing tool performs a comprehensive analysis on the 100 rounds of second return packet data received in step S3, eliminates single test errors, and calculates the packet loss rate or average signal strength of the return packets according to the test type to detect and determine the wireless coverage capability of the node under test.

[0043] Specifically, this includes: when performing transmit power detection, the actual transmit power of the node under test is calculated based on the signal strength of the second return packet received by the test tool. The transmit power is equal to the sum of the signal strength of the second return packet received by the test tool and the attenuation value of the attenuator (or plus system loss). If the calculated actual transmit power is within the specified range, the transmit power detection is deemed to have passed; otherwise, the test is deemed to have failed. When performing receiver sensitivity testing, the packet loss rate is used to determine whether the receiver sensitivity of the node under test meets the standard value, based on the equivalent path loss corresponding to the attenuation setting of the attenuator. Specifically, the attenuation of the attenuator is set according to the standard receiver sensitivity value so that the signal strength received by the node under test is equal to the standard value. If the packet loss rate is lower than a preset threshold, the receiver sensitivity of the node under test is considered to meet the standard, and the test is passed; otherwise, the test is considered to fail.

[0044] In the above steps, the testing tool can automatically execute the entire process, ensuring the standardization, automation, and repeatability of the testing process.

[0045] This invention enables standardized and automated detection of the transmit power and receive sensitivity of wireless nodes by putting the node under test into a service-enabled working mode and using a standardized detection environment that separates the control channel and the test channel to perform multiple rounds of service data packet transmission and reception and statistics. This can truly reflect the wireless coverage capability of the node under actual operating load and improve the accuracy and repeatability of the detection results.

[0046] Example 2 This embodiment uses a specific receiver sensitivity test as an example to illustrate the actual operation process of the method of the present invention.

[0047] Test Scenario: Receiver sensitivity testing was performed on an IoT wireless node for power transmission and transformation equipment operating in the 470MHz band. The standard receiver sensitivity value for this node is -109dBm. The testing tool is a wireless coverage capability tester conforming to the Q / GDW 12020-2019 protocol, with a test channel transmit power of 17dBm.

[0048] Test steps: Step S101: Set up the testing environment.

[0049] The test tool and the node under test (DUT) are placed in a shielded enclosure to isolate external wireless interference signals and ensure a stable test environment free from spurious interference. The control channel of the test tool is directly connected to the control channel of the DUT via an SMA RF cable. The low-power test channel and the low-power test channel of the DUT and the test tool are combined using an RF combiner, connected in series with two attenuators, and then connected with an RF cable. These two attenuators are used to simulate path loss for long-distance transmission in real-world scenarios, and can effectively simulate a wireless coverage distance of up to 5 kilometers.

[0050] The test tool's RF signal strength is known to be 17 dBm, while the standard receiver sensitivity of the node under test (DUT) is -109 dBm. According to the receiver sensitivity testing requirements, the signal strength received by the DUT must be equal to -109 dBm. Therefore, the total attenuation of the two series attenuators is set to: 17 dBm - (-109 dBm) = 126 dB. At this value, the RF signal emitted by the test tool, after attenuation, reaches the DUT with a signal strength of exactly -109 dBm, which is the same as the standard value.

[0051] Step S201: Start the test.

[0052] The test tool automatically executes the test software, sequentially sending "Enter Test Commands" conforming to the Q / GDW 12020-2019 protocol to the node under test (DUT). Upon receiving the command, the DUT enters test mode and returns an acknowledgment packet via the control channel. After receiving the acknowledgment packet, the test tool continues to send a custom-extended "Activate Channel Command" via the control channel. The DUT activates its RF channel, enters service-enabled operating mode, simulating the normal operating state of the node under actual service load in the field, and returns an acknowledgment packet via the control channel. Neither acknowledgment packet times out, and the test continues.

[0053] Step S301: Perform a return packet test.

[0054] The testing tool sends "return packet data" commands to the node under test cyclically through the test channel and waits for the second return packet. The process for each round is as follows: The testing tool issues a "return packet data" command; After receiving the instruction, the node under test sends a service data response packet to the test tool through the test channel; The testing tool records whether a correct response packet is received and the strength of the response packet signal. If an erroneous data packet is received, it is directly recorded as a lost packet and is not included in the statistics of valid responses.

[0055] A total of 100 rounds of testing were conducted to eliminate random errors introduced by a single test. Throughout the testing process, the node under test was always in a state of operational business, simulating a real-world operating environment.

[0056] Step S401: Result determination.

[0057] After 100 rounds of testing, the testing software calculated the packet loss rate. The calculated packet loss rate was <1%, below the preset threshold. Therefore, the receiver sensitivity of the 470MHz wireless node was determined to be -109dBm, meeting the requirements of the Q / GDW 12083-2021 standard, and the test was passed.

[0058] In summary, the method of the present invention enables the node under test to accurately determine whether its receiving sensitivity meets the standard requirements through a standardized testing environment and process, while the node is operating in a service mode.

[0059] Example 3 The electronic device of this invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in read-only memory (ROM) or loaded from a storage unit into random access memory (RAM). The RAM may also store various programs and data required for device operation. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0060] Multiple components in the device are connected to the I / O interface, including: input units such as keyboards and mice; output units such as various types of displays and speakers; storage units such as disks and optical discs; and communication units such as network interface cards (NICs), modems, and wireless transceivers. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0061] The processing unit executes the various methods and processes described above, such as methods S1 to S4. For example, in some embodiments, methods S1 to S4 may be implemented as computer software programs tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of methods S1 to S4 described above may be performed. Alternatively, in other embodiments, the CPU may be configured to execute methods S1 to S4 by any other suitable means (e.g., by means of firmware).

[0062] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0063] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0064] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for detecting the wireless coverage capability of a wireless node, characterized in that, include: A radio frequency (RF) connection is established between the test tool and the node under test (DUT). This RF connection includes a control channel connection and a test channel connection, with an attenuator configured in the test channel connection. The test tool sends an "Enter Test" command and an "Activate Channel Version" command, conforming to the wireless sensor network protocol, to the DUT via the control channel connection, enabling the DUT to enter a service-enabled operating mode. The test tool also receives the first response packet from the DUT via the control channel connection. The test tool then sends a response packet data command to the DUT via the test channel connection, receives the second response packet from the DUT in response to each response packet data command, and repeats this sending and receiving process for a preset number of rounds. Based on the received second response packets, the packet loss rate and average signal strength are calculated to determine the transmit power and receive sensitivity of the DUT.

2. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, The test channel connection includes a low-power test channel and a low-power test channel. The test tool and the node under test are connected in series with the attenuator after the low-power test channel and the low-power test channel are combined by an RF combiner.

3. The method for detecting the wireless coverage capability of a wireless node according to claim 2, characterized in that, The attenuator consists of two attenuators connected in series, used to simulate the equivalent path loss over a maximum coverage distance of 5 kilometers.

4. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, When the test tool receives the first return packet through the control channel, if the reception times out, the test is deemed to have failed, and the test result is output as either too low transmit power or the receive sensitivity has not reached the attenuation value, depending on the current test type.

5. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, The preset number of rounds is 100. In each round of testing, the testing tool first sends the return packet data instruction once through the test channel connection, and then receives the corresponding second return packet. After receiving the correct return packet or the packet receiving timeout occurs, it enters the next round.

6. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, When the testing tool receives the second return packet, if it receives an incorrect packet, it considers the packet not received and includes it in the packet loss statistics; and the testing tool calculates the signal strength of the second return packet received in each round.

7. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, Determining the transmit power and receive sensitivity of the node under test specifically includes: When performing transmit power detection, the actual transmit power of the node under test is calculated based on the signal strength of the second return packet received by the test tool; When performing receiver sensitivity testing, the receiver sensitivity of the node under test is determined by the packet loss rate based on the equivalent path loss corresponding to the attenuation amount set by the attenuator.

8. The method for detecting the wireless coverage capability of a wireless node according to claim 1, characterized in that, In the receiver sensitivity detection, the attenuation amount of the attenuator is set according to the receiver sensitivity standard value so that the signal strength received by the node under test is equal to the standard value. If the packet loss rate is lower than the preset threshold, the receiver sensitivity of the node under test is determined to meet the standard.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1 to 8.

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