CN112788643B - Wireless signal quality testing method - Google Patents
Wireless signal quality testing method Download PDFInfo
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- CN112788643B CN112788643B CN202011621842.0A CN202011621842A CN112788643B CN 112788643 B CN112788643 B CN 112788643B CN 202011621842 A CN202011621842 A CN 202011621842A CN 112788643 B CN112788643 B CN 112788643B
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- lightning arrester
- arrester monitoring
- dcu
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a wireless signal quality testing method, which is used for testing the communication quality between an arrester monitoring sensor and an arrester monitoring centralized processing unit (DCU for short), a portable arrester monitoring auxiliary terminal is used for setting the arrester monitoring sensor and the arrester monitoring DCU into a signal quality testing mode, and the arrester monitoring DCU acquires, analyzes and calculates signals of the arrester monitoring sensor in the signal quality testing mode to obtain the success rate and the signal attenuation degree of wireless communication, so that accurate data basis is provided for the arrangement of the field arrester monitoring DCU and the adjustment of the antenna position, and the communication quality of the wireless communication is ensured.
Description
Technical Field
The invention relates to a wireless signal quality testing method, in particular to a testing method for lightning arrester communication signal quality, and belongs to the technical field of wireless communication of the Internet of things.
Background
The Internet of things is an important component of modern information communication technology and is a landmark product of the development extension of wireless communication technology. The quality of the interactive communication between the object and the object information is a key index of the communication of the Internet of things, and the quantity and the position of DCUs and the directions of antennas are fully considered in the system layout.
Generally, the quality of wireless signals is tested by using special equipment such as a spectrum analyzer, a vector analyzer and a field intensity meter. These equipment are expensive, and bulky, heavy in weight, require high to operating personnel's professional degree, carry to arrester monitoring field and use very inconveniently.
The invention discloses a wireless signal quality testing method, which solves the problems and the defects, and has the advantages of convenient and accurate measurement, simple operation and low cost.
Disclosure of Invention
The technical scheme is as follows: a wireless signal quality testing method is used for testing the communication quality between an arrester monitoring sensor and an arrester monitoring centralized processing unit (the centralized processing unit is called DCU for short), a portable arrester monitoring auxiliary terminal is used for enabling the arrester monitoring sensor and the arrester monitoring DCU to be set to be in a signal quality testing mode, and in the signal quality testing mode, the arrester monitoring DCU collects, analyzes and calculates signals of the arrester monitoring sensor to obtain the success rate and the signal attenuation degree of wireless communication, so that accurate data basis is provided for the arrangement of the on-site arrester monitoring DCU and the adjustment of the position of an antenna, and the communication quality of the wireless communication is guaranteed.
The communication success rate (unit%) is a percentage of the number of completely received frames per 100 frames of data transmitted from the transmitting side.
The signal attenuation degree (unit dBm) refers to the degree of signal attenuation from the sender to the receiver when the receiver receives the data from the sender.
The lightning arrester monitoring sensor comprises an ARM processor, an RS485 chip and a wireless communication module; the ARM processor is respectively connected with the RS485 chip and the wireless Bluetooth communication module, so that two communication modes of RS485 communication and wireless Bluetooth communication are realized; the ARM processor program has two working modes, namely a normal working mode and a wireless signal quality testing working mode, and a user can set the working mode of the lightning arrester monitoring sensor through the portable lightning arrester monitoring auxiliary terminal.
The lightning arrester monitoring DCU also comprises an ARM processor, an RS485 chip and a wireless LoRa communication module, wherein the ARM processor is respectively connected with the RS485 chip and the wireless LoRa communication module to realize two communication modes of RS485 and wireless communication; the ARM processor program also has two working modes, namely a normal working mode and a wireless signal quality testing working mode.
Portable arrester monitoring auxiliary terminal RS485 chip and wireless loRa communication module, portable arrester monitoring auxiliary terminal sets up arrester monitoring DCU and arrester monitoring sensor's mode through RS485 or wireless loRa communication mode.
The lightning arrester monitoring sensor adopts a low-power-consumption Bluetooth 5.0 communication protocol and is used as slave equipment to communicate with the lightning arrester monitoring DCU, and the lightning arrester monitoring sensor works in a normal monitoring mode at ordinary times. The portable lightning arrester monitoring auxiliary terminal is communicated with the lightning arrester monitoring sensor through RS485, and the portable lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor into a wireless signal quality test mode through RS 485.
The lightning arrester monitoring DCU adopts a low-power-consumption Bluetooth 5.0 communication protocol, is used as main equipment to communicate with the lightning arrester monitoring sensor, and works in a normal monitoring relay mode at ordinary times. The lightning arrester monitoring DCU is provided with an RS485 interface and a wireless LoRa module, and the portable lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring DCU into a wireless signal quality test mode through the RS485 or the wireless LoRa module.
Wireless signal quality testing:
step 1) the lightning arrester monitoring auxiliary terminal sets a lightning arrester monitoring DCU to be in a wireless signal quality testing working mode through RS 485;
step 2) the lightning arrester monitoring auxiliary terminal acquires a Bluetooth MAC address of the lightning arrester monitoring sensor through RS 485;
step 3) the lightning arrester monitoring auxiliary terminal sends the Bluetooth MAC address of the lightning arrester monitoring sensor to a lightning arrester monitoring DCU through wireless LoRa, the lightning arrester monitoring DCU is used as a main Bluetooth device to list the Bluetooth MAC address into a white list, starts to receive the data of the Bluetooth MAC address, and analyzes the signal attenuation degree of the Bluetooth MAC address;
step 4) the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor to be in a wireless signal quality test working mode through RS485, at the moment, the lightning arrester monitoring sensor is used as Bluetooth slave equipment, one frame of communication quality test data frame is sent outwards every second, the total is 100 frames, and each frame contains respective frame serial number;
step 5) the lightning arrester monitoring DCU is used as a main Bluetooth device, and immediately reports the received frame to an ARM processor of the lightning arrester monitoring DCU after receiving a frame of communication quality test data frame of the lightning arrester monitoring sensor, and simultaneously informs the signal attenuation degree of the frame;
step 6) the ARM processor of the lightning arrester monitoring DCU counts the number of received frames, calculates the communication success rate, calculates the average value of the signal attenuation degree, sends the communication success rate and the signal attenuation degree to the lightning arrester monitoring auxiliary terminal through LoRa, and displays the communication success rate and the signal attenuation degree through the lightning arrester monitoring auxiliary terminal;
and 7) according to the method, constructors can obtain the communication success rate and the signal attenuation degree of each lightning arrester monitoring sensor, plan the installation position of the lightning arrester monitoring DCU, adjust the lightning arrester monitoring DCU Bluetooth antenna and select the optimal position of the DCU Bluetooth antenna.
Drawings
FIG. 1 is a schematic diagram of the method of the present invention;
fig. 2 is a flow chart of the method of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, as various equivalent modifications of the invention will occur to those skilled in the art upon reading the present disclosure and fall within the scope of the appended claims.
As shown in fig. 1, a wireless signal quality testing method is used for testing the communication quality between a lightning arrester monitoring sensor and a lightning arrester monitoring DCU.
As shown in the attached drawing 1, the lightning arrester monitoring sensor comprises a Bluetooth module, a low-power Bluetooth 5.0 communication protocol is adopted, the lightning arrester monitoring sensor is used as slave equipment to communicate with a lightning arrester monitoring DCU, and the lightning arrester monitoring sensor works in a normal monitoring mode at ordinary times. In addition, the lightning arrester monitoring sensor is also provided with an RS485 interface, and the portable lightning arrester monitoring auxiliary terminal can pass through the RS485 interface and set the lightning arrester monitoring sensor into a wireless signal quality test mode.
The lightning arrester monitoring DCU adopts a low-power-consumption Bluetooth 5.0 communication protocol, and is communicated with the lightning arrester monitoring sensor as main equipment, and the lightning arrester monitoring DCU works in a normal monitoring relay mode at ordinary times. In addition, the lightning arrester monitoring DCU is also provided with an RS485 interface and a wireless LoRa module, and the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring DCU to be in a wireless signal quality test mode through the RS485 or the wireless LoRa module;
wireless signal quality testing:
1) As shown in fig. 2, the lightning arrester monitoring DCU is set to a wireless signal quality testing working mode by the lightning arrester monitoring auxiliary terminal through RS 485;
2) As shown in the attached figure 2, the lightning arrester monitoring auxiliary terminal acquires a Bluetooth MAC address of the lightning arrester monitoring sensor through RS 485;
3) As shown in fig. 2, the arrester monitoring auxiliary terminal sends the MAC address of the arrester monitoring sensor to the arrester monitoring DCU through LoRa, the DCU bluetooth master node lists the MAC address in a white list, starts to receive data of the MAC address, and analyzes the signal attenuation degree of the MAC address;
4) As shown in fig. 2, the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor to a wireless signal quality test working mode through RS485, and at this time, the lightning arrester monitoring sensor serves as a bluetooth slave device and sends out a frame of communication quality test data frame every second, which is 100 frames in total, and each frame includes its own frame serial number;
5) As shown in fig. 2, the lightning arrester monitoring DCU is used as a main bluetooth device, and immediately reports a frame of communication quality test data frame of the lightning arrester monitoring sensor to the ARM processor of the lightning arrester monitoring DCU after receiving the frame, and simultaneously informs the ARM processor of the lightning arrester monitoring DCU of the received frame of communication quality test data frame of the lightning arrester monitoring sensor.
6) As shown in fig. 2, the ARM processor of the lightning arrester monitoring DCU counts the number of received frames as a communication success rate, calculates an average value of the signal attenuation, and sends the communication success rate and the average value of the signal attenuation to the lightning arrester monitoring auxiliary terminal through the LoRa.
7) As shown in fig. 2, according to the above method, a constructor can obtain the communication success rate and the signal attenuation of each arrester monitoring sensor, plan the installation position of the arrester monitoring DCU, adjust the bluetooth antenna of the arrester monitoring DCU, and select the best position of the bluetooth antenna of the DCU.
Claims (9)
1. A method for testing the quality of a wireless signal, comprising: the system is used for testing the communication quality between the lightning arrester monitoring sensor and the lightning arrester monitoring DCU, the lightning arrester monitoring sensor and the lightning arrester monitoring DCU are set to be in a wireless signal quality testing mode by using the lightning arrester monitoring auxiliary terminal, and signals of the lightning arrester monitoring sensor are collected and calculated by the lightning arrester monitoring DCU in the wireless signal quality testing mode to obtain the wireless communication success rate and the signal attenuation degree, so that a data basis is provided for the arrangement of the on-site lightning arrester monitoring DCU and the adjustment of the antenna position;
the wireless signal quality testing method comprises the following steps:
step 1) the lightning arrester monitoring auxiliary terminal sets a lightning arrester monitoring DCU to be in a wireless signal quality test working mode;
step 2) the lightning arrester monitoring auxiliary terminal acquires a Bluetooth MAC address of the lightning arrester monitoring sensor;
step 3) the lightning arrester monitoring auxiliary terminal sends the Bluetooth MAC address of the lightning arrester monitoring sensor to the lightning arrester monitoring DCU through wireless communication, the lightning arrester monitoring DCU is used as a main Bluetooth device to list the Bluetooth MAC address into a white list, starts to receive the data of the Bluetooth MAC address, and analyzes the signal attenuation degree of the Bluetooth MAC address;
step 4) the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor to be in a wireless signal quality testing working mode, at the moment, the lightning arrester monitoring sensor is used as Bluetooth slave equipment and sends a frame of communication quality testing data frame outwards every second, and each frame contains respective frame serial numbers;
step 5) the lightning arrester monitoring DCU serves as a main Bluetooth device, and immediately reports the received frame to an ARM processor of the lightning arrester monitoring DCU after receiving a frame of communication quality test data frame of the lightning arrester monitoring sensor, and simultaneously informs the signal attenuation degree of the frame;
and 6) the ARM processor of the lightning arrester monitoring DCU counts the number of received frames, calculates the communication success rate, calculates the average value of the signal attenuation degree, sends the communication success rate and the signal attenuation degree to the lightning arrester monitoring auxiliary terminal, and displays the communication success rate and the signal attenuation degree through the lightning arrester monitoring auxiliary terminal.
2. The wireless signal quality testing method of claim 1, wherein: the communication success rate is the percentage of the number of completely received frames of each 100 frames of data sent by the sender.
3. The wireless signal quality testing method of claim 1, wherein: the signal attenuation degree refers to the degree of signal attenuation from the sender to the receiver in dBm when the receiver receives the data of the sender.
4. The wireless signal quality testing method of claim 1, wherein: the lightning arrester monitoring sensor comprises an ARM processor, an RS485 chip and a wireless communication module; the ARM processor is respectively connected with the RS485 chip and the wireless communication module, so that two communication modes of RS485 and wireless communication are realized; the ARM processor program has two working modes, namely a normal working mode and a wireless signal quality testing working mode, and a user can set the working mode of the lightning arrester monitoring sensor through the lightning arrester monitoring auxiliary terminal.
5. The wireless signal quality testing method of claim 1, wherein: the lightning arrester monitoring DCU also comprises an ARM processor, an RS485 chip and a wireless communication module, wherein the ARM processor is respectively connected with the RS485 chip and the wireless communication module to realize two communication modes of RS485 and wireless communication; the ARM processor program also has two working modes, namely a normal working mode and a wireless signal quality testing working mode.
6. The wireless signal quality testing method of claim 1, wherein: the lightning arrester monitoring auxiliary terminal comprises an RS485 chip and a wireless communication module, and the working modes of the lightning arrester monitoring DCU and the lightning arrester monitoring sensor are set by the lightning arrester monitoring auxiliary terminal in an RS485 or wireless communication mode.
7. The wireless signal quality testing method of claim 1, wherein: the lightning arrester monitoring sensor adopts a low-power-consumption Bluetooth 5.0 communication protocol and is used as slave equipment to communicate with a lightning arrester monitoring DCU; the lightning arrester monitoring auxiliary terminal is communicated with the lightning arrester monitoring sensor through RS485, and the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor into a wireless signal quality test mode through RS 485.
8. The wireless signal quality testing method of claim 1, wherein: arrester monitoring DCU adopts bluetooth low energy 5.0 communication protocol, as main equipment and arrester monitoring sensor communication, arrester monitoring DCU still has RS485 interface and wireless loRa module, and arrester monitoring auxiliary terminal passes through RS485 or wireless loRa, sets up arrester monitoring DCU into wireless signal quality test mode.
9. The wireless signal quality testing method according to claim 1, wherein the lightning arrester monitoring auxiliary terminal sets a lightning arrester monitoring DCU to a wireless signal quality testing operation mode through RS 485; the lightning arrester monitoring auxiliary terminal acquires a Bluetooth MAC address of the lightning arrester monitoring sensor through RS 485; the lightning arrester monitoring auxiliary terminal sends the Bluetooth MAC address of the lightning arrester monitoring sensor to the lightning arrester monitoring DCU through wireless LoRa, the lightning arrester monitoring DCU serves as a main Bluetooth device to list the Bluetooth MAC address into a white list, starts to receive data of the Bluetooth MAC address, and analyzes the signal attenuation degree of the Bluetooth MAC address; the lightning arrester monitoring auxiliary terminal sets the lightning arrester monitoring sensor to be in a wireless signal quality testing working mode through RS485, at the moment, the lightning arrester monitoring sensor serves as Bluetooth slave equipment and sends a frame of communication quality testing data frame outwards every second, the frame of communication quality testing data frame is 100 frames in total, and each frame of communication quality testing data frame contains respective frame serial numbers;
constructors can plan the installation position of the lightning arrester monitoring DCU according to the communication success rate and the signal attenuation degree of each lightning arrester monitoring sensor, adjust the lightning arrester monitoring DCU Bluetooth antenna and select the optimal position of the DCU Bluetooth antenna.
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