CN112888013B - System and method for testing radio frequency parameter consistency of zigbee - Google Patents
System and method for testing radio frequency parameter consistency of zigbee Download PDFInfo
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- CN112888013B CN112888013B CN202011421655.8A CN202011421655A CN112888013B CN 112888013 B CN112888013 B CN 112888013B CN 202011421655 A CN202011421655 A CN 202011421655A CN 112888013 B CN112888013 B CN 112888013B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Abstract
The invention provides a zigbee radio frequency parameter consistency test system and a method thereof, belonging to the technical field of zigbee equipment test, wherein the system comprises a computer, a spectrum analyzer, a camera, a zigbee test tool for connecting zigbee equipment and a coaxial cable; one end of the coaxial cable is connected with the zigbee test tool, and the other end of the coaxial cable is connected with the spectrum analyzer; one end of the computer is connected with the zigbee test tool, and the other end of the computer is connected with the camera; the shooting direction of the camera faces to a display screen of the spectrum analyzer. The invention has the advantages that: the efficiency and the quality of the zigbee radio frequency parameter consistency test are greatly improved.
Description
Technical Field
The invention relates to the technical field of zigbee equipment testing, in particular to a zigbee radio frequency parameter consistency testing system and a zigbee radio frequency parameter consistency testing method.
Background
zigbee is also called zigbee, and is a wireless network protocol for low-speed short-distance transmission, and the bottom layer is a medium access layer and a physical layer which adopt IEEE 802.15.4 standard specifications. The method is mainly characterized by low speed, low power consumption, low cost, support of a large number of nodes on the network, support of various topologies on the network, low complexity, rapidness, reliability and safety.
Under the wave of the smart home internet of things, good user experience is expected to be achieved, the stability of wireless communication becomes more important, and the zigbee communication protocol gradually stands out due to the advantages. However, in the production process of the zigbee equipment, due to the defects of the chip, the crystal, the resistor-capacitor, the PCB and other materials, the zigbee radio frequency parameters are inconsistent, and the wireless communication effect of the zigbee equipment is finally affected, so that the requirement for testing the consistency of the zigbee radio frequency parameters is generated.
Aiming at the test of the consistency of the zigbee radio frequency parameters, traditionally, zigbee equipment is manually connected with a spectrum analyzer to test and record one by one, so that not only is the efficiency low, but also the situation of test errors caused by fatigue exists. Therefore, how to provide a system and a method for testing the consistency of zigbee radio frequency parameters to improve the efficiency and quality of the zigbee radio frequency parameter consistency test becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a system and a method for testing the consistency of zigbee radio frequency parameters, so as to improve the efficiency and quality of the zigbee radio frequency parameter consistency test.
In a first aspect, the invention provides a zigbee radio frequency parameter consistency test system, which comprises a computer, a spectrum analyzer, a camera, a zigbee test tool for connecting zigbee equipment and a coaxial cable, wherein the computer is connected with the zigbee radio frequency parameter consistency test tool;
One end of the coaxial cable is connected with the zigbee test tool, and the other end of the coaxial cable is connected with the spectrum analyzer; one end of the computer is connected with the zigbee test tool, and the other end of the computer is connected with the camera; the shooting direction of the camera faces to a display screen of the spectrum analyzer.
Furthermore, the zigbee test tool is provided with a serial port and a conductive thimble group for connecting the zigbee equipment and the coaxial cable; the serial port is connected with a computer.
Further, the coaxial cable is a 50 Ω coaxial cable.
Furthermore, the zigbee test tool is connected with a computer through a serial port.
Further, the computer is connected with the camera through a USB.
In a second aspect, the present invention provides a method for testing zigbee radio frequency parameter consistency, including the following steps:
step S10, connecting the zigbee equipment to be tested with a zigbee test tool, and starting the computer, the camera, the spectrum analyzer and the zigbee equipment;
step S20, the computer acquires the IEEE address of the zigbee equipment, sets the radio frequency parameters, sends the radio frequency parameters to the zigbee equipment through a fixed channel fixed frequency single carrier instruction, and sets the configuration data of the spectrum analyzer based on the radio frequency parameters;
Step S30, the zigbee equipment receives and analyzes the fixed channel fixed frequency single carrier instruction to obtain a radio frequency parameter, and sends a radio frequency signal based on the radio frequency parameter;
step S40, the spectrum analyzer detects the radio frequency signal sent by the zigbee equipment based on the configuration data, and displays the corresponding waveform through the display screen;
s50, acquiring a display screen image of the spectrum analyzer through a camera by the computer, and analyzing the display screen image to obtain a waveform;
and step S60, the computer generates a test result based on the radio frequency parameter and the waveform, and stores the test result after binding with the IEEE address.
Further, in step S20, the radio frequency parameter is a fixed channel fixed frequency single carrier signal.
Further, in step S20, the configuration data includes a center frequency, a sweep width, a reference level, an attenuation value, a resolution bandwidth, and a video bandwidth.
Further, the step S60 is specifically:
presetting a frequency offset threshold value and a spurious threshold value by the computer, judging whether the frequency offset is smaller than the frequency offset threshold value or not based on the radio frequency parameters and the waveform, and if so, generating a test result which passes the test, and storing the test result after binding the test result with the IEEE address; if not, generating a test result which does not pass the test, and storing the test result after binding the test result with the IEEE address.
The invention has the advantages that:
1. the zigbee test tool is connected with zigbee equipment to be tested, and the zigbee test tool is respectively connected with the spectrum analyzer and the computer, so that the wiring of the zigbee equipment is simplified, and the zigbee equipment in batches can be tested in sequence; the computer analyzes the display screen image to obtain a waveform, and then automatically generates a test result based on the radio frequency parameters and the waveform, so that the zigbee equipment is manually connected with the spectrum analyzer to test and record one by one, and the efficiency and quality of the zigbee radio frequency parameter consistency test are greatly improved.
2. By binding the test result with the IEEE address, the test result can correspond to the zigbee equipment one by one due to the uniqueness of the IEEE address, and the source tracing at the later stage is facilitated.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a zigbee radio frequency parameter consistency testing system according to the present invention.
FIG. 2 is a flowchart of a zigbee radio frequency parameter consistency testing method according to the present invention.
Detailed Description
The technical scheme in the embodiment of the application has the following general idea: connecting zigbee equipment to be tested through a zigbee test tool, and accelerating the connection speed of the zigbee equipment; the display screen image of the spectrum analyzer is collected through the camera and sent to the computer, the computer analyzes the display screen image to obtain a waveform, and then a test result is automatically generated based on the radio frequency parameters and the waveform, so that the low efficiency and the test error caused by manual test are avoided, and the efficiency and the quality of zigbee radio frequency parameter consistency test are improved.
Referring to fig. 1 to 2, a preferred embodiment of a zigbee radio frequency parameter consistency testing system according to the present invention includes a computer, a spectrum analyzer, a camera, a zigbee testing tool for connecting zigbee equipment, and a coaxial cable;
one end of the coaxial cable is connected with the zigbee test tool, and the other end of the coaxial cable is connected with the spectrum analyzer; one end of the computer is connected with the zigbee test tool, and the other end of the computer is connected with the camera; the shooting direction of the camera faces to a display screen of the spectrum analyzer.
The zigbee test tool is provided with a serial port and a conductive thimble group for connecting zigbee equipment and a coaxial cable; the serial port is connected with a computer. The coaxial cable can be connected with the zigbee equipment through the near-field probe, and can also be connected with the zigbee equipment through the conduction thimble group, and the connection testing precision is higher through the conduction thimble group.
The coaxial cable is a 50 omega coaxial cable and is just impedance matched with the PCB antenna wiring impedance of the zigbee equipment.
And the zigbee test tool is connected with a computer through a serial port.
And the computer is connected with the camera through a USB.
The invention discloses a better embodiment of a zigbee radio frequency parameter consistency test method, which comprises the following steps:
Step S10, connecting the zigbee equipment to be tested with a zigbee test tool, and starting the computer, the camera, the spectrum analyzer and the zigbee equipment; zigbee test software is installed on the computer;
step S20, the computer acquires the IEEE address of the zigbee equipment, sets the radio frequency parameters, sends the radio frequency parameters to the zigbee equipment through a fixed channel fixed frequency single carrier instruction, and manually sets the configuration data of the spectrum analyzer based on the radio frequency parameters;
step S30, the zigbee equipment receives and analyzes the fixed channel fixed frequency single carrier instruction to obtain a radio frequency parameter, and sends a radio frequency signal based on the radio frequency parameter;
step S40, the spectrum analyzer detects the radio frequency signal sent by the zigbee equipment based on the configuration data, and displays the corresponding waveform through the display screen;
s50, automatically acquiring a display screen image of the spectrum analyzer by the computer through the camera, and analyzing the display screen image to obtain a waveform; the analysis of the display screen image is based on an OCR technology or a machine learning technology, and belongs to the prior art;
and step S60, the computer automatically generates a test result based on the radio frequency parameter and the waveform, and stores the test result after binding with the IEEE address.
In step S20, the radio frequency parameter is a fixed channel fixed frequency single carrier signal.
In step S20, the configuration data includes center frequency, sweep width, reference level, attenuation value, resolution bandwidth, and video bandwidth.
The step S60 specifically includes:
presetting a frequency offset threshold value and a spurious threshold value by the computer, judging whether the frequency offset is smaller than the frequency offset threshold value or not based on the radio frequency parameters and the waveform, and if so, generating a test result which passes the test, and storing the test result after binding the test result with the IEEE address; if not, generating a test result which does not pass the test, and storing the test result after binding the test result with the IEEE address.
In summary, the invention has the advantages that:
1. the zigbee test tool is connected with zigbee equipment to be tested, and the zigbee test tool is respectively connected with the spectrum analyzer and the computer, so that the wiring of the zigbee equipment is simplified, and the zigbee equipment in batches can be tested in sequence; the computer analyzes the display screen image to obtain a waveform, and then automatically generates a test result based on the radio frequency parameters and the waveform, so that the zigbee equipment is manually connected with the spectrum analyzer to test and record one by one, and the efficiency and quality of the zigbee radio frequency parameter consistency test are greatly improved.
2. By binding the test result with the IEEE address, the test result can be in one-to-one correspondence with the zigbee equipment due to the uniqueness of the IEEE address, and the source tracing at the later stage is facilitated.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (2)
1. A zigbee radio frequency parameter consistency test system is characterized in that: the device comprises a computer, a spectrum analyzer, a camera, a zigbee test tool for connecting zigbee equipment and a coaxial cable;
one end of the coaxial cable is connected with the zigbee test tool, and the other end of the coaxial cable is connected with the spectrum analyzer; one end of the computer is connected with the zigbee test tool, and the other end of the computer is connected with the camera through a USB; the shooting direction of the camera faces to a display screen of the spectrum analyzer;
the zigbee test tool is provided with a serial port and a conduction thimble group used for connecting zigbee equipment and a coaxial cable; the zigbee test tool is connected with a computer through a serial port;
The coaxial cable is a 50 omega coaxial cable.
2. A zigbee radio frequency parameter consistency test system method is characterized in that: the method requires the use of a test system according to claim 1, comprising the steps of:
step S10, connecting the zigbee equipment to be tested with a zigbee test tool, and starting the computer, the camera, the spectrum analyzer and the zigbee equipment;
step S20, the computer acquires the IEEE address of the zigbee equipment, sets the radio frequency parameters, sends the radio frequency parameters to the zigbee equipment through a fixed channel fixed frequency single carrier instruction, and sets the configuration data of the spectrum analyzer based on the radio frequency parameters; the radio frequency parameter is a fixed channel fixed frequency single carrier signal; the configuration data comprises center frequency, sweep width, reference level, attenuation value, resolution bandwidth and video bandwidth;
step S30, the zigbee equipment receives and analyzes the fixed channel fixed frequency single carrier instruction to obtain a radio frequency parameter, and sends a radio frequency signal based on the radio frequency parameter;
step S40, the spectrum analyzer detects the radio frequency signal sent by the zigbee equipment based on the configuration data, and displays the corresponding waveform through the display screen;
s50, acquiring a display screen image of the spectrum analyzer through a camera by the computer, and analyzing the display screen image to obtain a waveform;
Step S60, presetting a frequency deviation threshold value and a spurious threshold value by the computer, judging whether the frequency deviation is smaller than the frequency deviation threshold value or not based on the radio frequency parameters and the waveform, and if so, generating a test result which passes the test, and storing the test result after binding the test result with the IEEE address; if not, generating a test result which does not pass the test, and storing the test result after binding the test result with the IEEE address.
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