CN118018066B - Router deep networking method for low-voltage carrier communication - Google Patents

Abstract

The invention discloses a router deep networking method for low-voltage carrier communication, which comprises the following steps: s1, selecting a low-voltage carrier wave for communication: the existing low-voltage distribution network is used as a transmission medium to carry out data transmission and information exchange; s2, low-voltage carrier communication noise treatment: according to the reasons and characteristics of the power line communication channel noise generation, the generated noise is respectively processed at a transmitting end and a receiving end of the signal, so that the influence of the noise on signal transmission is reduced; s3, net distribution: selecting an access mode of a wired MESH or a wireless MESH, and setting a master router and a plurality of sub routers to access network connection media in the range of a home network, a community network, an enterprise network and a metropolitan area network needing networking to form a pre-access network; s4, networking is carried out through an MESH network; s5, networking optimization. The invention adopts the low-voltage carrier communication technology and the technology of high-speed transmission of analog or digital signals in a carrier mode, thereby increasing the signal transmission rate and effectively reducing the delay.

Description

A router deep networking method for low-voltage carrier communication

Technical Field

The present invention belongs to the technical field of communications, and in particular relates to a router deep networking method for low-voltage carrier communication.

Background Art

With the popularization of broadband, wireless network communication technology (WIFI) at home has become an indispensable part of people's lives. Mobile phones, computers, various smart home appliances, home cameras and other work are inseparable from wireless networks, so wireless networks are required to have wide coverage, stability and fast transmission speed. Routers in the prior art generally include a mother router and a child router, and the mother router and the child router are connected through wired or wireless connections to complete the networking.

As disclosed in the authorization announcement number CN115474215B, a router-based networking method and system include: obtaining the historical data transmission records of the routers corresponding to each data node of the current network topology; parsing the historical data transmission records of the routers corresponding to each data node to determine the target node to be shared; extracting the network connection status and historical data transmission records of the target node; based on the network connection status and historical data transmission records of the target node, determining the access method of the node to be accessed. Although it realizes the analysis of the current networking status, determines the target node to be shared, and analyzes the status of the target node to determine the method of accessing the router as a new node, it realizes the best shared access and improves the stability and reliability of the networking.

However, the above method does not solve the problems that exist in the existing router deep networking method: most of the existing routers do not incorporate low-voltage carrier communication technology, which results in a low signal transmission rate, increases network latency, and there is noise interference during signal transmission, which affects the accuracy of signal transmission. In addition, when routers are networked, the WiFi signal radiation intensity of a single router is strictly regulated, so the WiFi signal coverage area of a router will not be too large, especially when facing multiple walls, the signal attenuation is even more severe, thereby reducing the stability of the network. For this reason, we propose a router deep networking method with low-voltage carrier communication.

Summary of the invention

The object of the present invention is to provide a router deep networking method for low-voltage carrier communication to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solution: a router deep networking method for low-voltage carrier communication, comprising the following steps:

S1. Select low-voltage carrier for communication: use the existing low-voltage distribution network as the transmission medium for data transmission and information exchange;

S2. Low-voltage carrier communication noise processing: According to the causes and characteristics of power line communication channel noise, the generated noise is processed at the signal sending and receiving ends respectively to reduce the impact of noise on signal transmission;

S3. Network deployment: Select wired MESH or wireless MESH access mode, set up a mother router and several child routers to access the network connection medium within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and form a pre-access network;

S4. Networking through MESH network: The pre-access network sends a join request signal to the MESH network. When the MESH network receives the join request sent by the pre-access network, it reports the request information to the cloud platform for decision-making by the cloud platform. The cloud platform makes a comprehensive decision based on the request information reported by the received MESH network, determines the access point, and notifies the access point to access the pre-access network to complete the networking;

S5. Network optimization: Using the 802.11k protocol, freely select the number of sub-routers in the network, increase the signal coverage, enable seamless roaming between the mother router and several sub-routers, reduce latency, and achieve automatic network switching.

Preferably, the method of selecting a low-voltage carrier for communication in S1 specifically includes the following steps:

The transmitting end adopts continuous phase FSK modulation to obtain the signal of mark frequency and space frequency, and sends the signal to the digital-to-analog converter;

Establishing a target function based on the signal using the digital-to-analog converter;

By calculating the optimal solution of the objective function as the optimal path between the sending end and the receiving end;

A signal is sent to a receiving end according to the optimal path.

Preferably, the objective function is expressed by the following formula:

Wherein, fitness represents the objective function; T represents the delay sub-objective function; LR represents the packet loss rate sub-objective function; ω ₁ represents the weight factor corresponding to the delay sub-objective function, ω ₂ represents the weight factor corresponding to the packet loss rate sub-objective function, and satisfies ω ₁ +ω ₂ =1; ψ represents the load balancing factor;

The encoding used in the MESH network consists of two identical component encoders (ENC1, ENC2), each inputting a pair of information bits (a1, a2), outputting system bits (u1, u2) and check bits (p, g); the ENC1 and ENC2 use an 8-state encoder to map the first bit of the input data stream to u1 and the second bit to u2. In one ENC, a check bit is output for each pair of bits, and then the check bits (p, g) are calculated.

Preferably, the noise includes one or more of Gaussian white noise, narrowband noise, periodic noise asynchronous with the power frequency, periodic noise synchronous with the power frequency and single event impulse noise.

Preferably, the method for processing the generated noise at the signal transmitting end comprises the following steps:

Encode the signal data to be sent, and perform spectrum shaping precoding after encoding;

Performing spectrum shaping processing on the frequency domain data after spectrum shaping precoding to obtain frequency domain signal data after spectrum shaping;

Subcarrier mapping is performed on the frequency domain signal data after spectrum shaping for OFDM modulation.

Preferably, the method for processing the generated noise at the receiving end of the signal comprises the following steps:

Perform OFDM demodulation processing on the received digital baseband signal;

Performing spectrum shaping decoding processing on the OFDM demodulated signal to restore the signal data to the signal data before spectrum shaping precoding processing;

The signal data after the spectrum shaping decoding processing is decoded.

Preferably, the access method of the wired MESH specifically includes: using Category 5e, Category 6 or above network cables, wiring the network cables in advance within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and setting a mother router and several sub-routers to access the network connection medium to form a pre-access network.

Preferably, the access mode of the wireless MESH includes a dual-band wireless networking mode and a triple-band wireless networking mode.

Preferably, the cloud platform in S4 makes a comprehensive decision based on the request information reported by the received MESH network to determine the access point, specifically including: the cloud platform traverses each data with a valid status in the received request information, and makes a comprehensive decision to determine the access point; wherein, when the pre-access network has completed networking, or the networking has timed out, the cloud platform sets the status of the corresponding data to invalid.

Preferably, the access point accessing the pre-access network specifically includes: the access point turning on a service set identifier and waiting for the pre-access network to join;

The access point detects whether the pre-access network is accessed within a preset time period, and reports the access result to the cloud platform; wherein, after receiving the access result, the cloud platform sends the access result to the user end.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention adopts low-voltage carrier communication technology to transmit analog or digital signals at high speed through carrier, thereby increasing the signal transmission rate and effectively reducing delay.

(2) The present invention processes the noise of low-voltage carrier communication and can process the noise separately at the transmitting end and the receiving end, thereby achieving accurate and efficient reception of low-voltage carrier signals, reducing the interference of noise on signal transmission, and thus improving and enhancing data transmission performance.

(3) The present invention selects a wired MESH or wireless MESH access mode, and sets a mother router and several sub-routers to access the network connection medium to form a pre-access network, and then connects the pre-access network to the MESH network for networking, which can increase the network coverage, reduce latency, and realize automatic network switching, thereby increasing the stability of the network.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a flow chart of the present invention;

Figure 2 is one of the coding architecture diagrams used in the MESH network;

Figure 3 is the second diagram of the coding architecture used in the MESH network;

FIG4 is a diagram showing the hierarchical division of a broadband carrier communication network protocol stack.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example 1

Please refer to FIG. 1 to FIG. 4 , the present invention provides a technical solution: a router deep networking method for low-voltage carrier communication, comprising the following steps:

S1. Select low-voltage carrier for communication: use the existing low-voltage distribution network as the transmission medium for data transmission and information exchange;

S2. Low-voltage carrier communication noise processing: According to the causes and characteristics of power line communication channel noise, the generated noise is processed at the signal sending and receiving ends respectively to reduce the impact of noise on signal transmission;

S3. Network deployment: Select wired MESH access mode, set up a mother router and several child routers to access the network connection medium within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and form a pre-access network;

S4. Networking through MESH network: The pre-access network sends a join request signal to the MESH network. When the MESH network receives the join request sent by the pre-access network, it reports the request information to the cloud platform for decision-making by the cloud platform. The cloud platform makes a comprehensive decision based on the request information reported by the received MESH network, determines the access point, and notifies the access point to access the pre-access network to complete the networking;

S5. Network optimization: Using the 802.11k protocol, freely select the number of sub-routers in the network, increase the signal coverage, enable seamless roaming between the mother router and several sub-routers, reduce latency, and achieve automatic network switching.

In this embodiment, preferably, the method for selecting a low-voltage carrier for communication in S1 specifically includes the following steps:

The transmitting end adopts continuous phase FSK modulation to obtain the signal of mark frequency and space frequency, and sends the signal to the digital-to-analog converter;

Establishing a target function based on the signal using the digital-to-analog converter;

By calculating the optimal solution of the objective function as the optimal path between the sending end and the receiving end;

A signal is sent to a receiving end according to the optimal path.

In this embodiment, preferably, the objective function is expressed by the following formula:

Wherein, fitness represents the objective function; T represents the delay sub-objective function; LR represents the packet loss rate sub-objective function; ω ₁ represents the weight factor corresponding to the delay sub-objective function, ω ₂ represents the weight factor corresponding to the packet loss rate sub-objective function, and satisfies ω ₁ +ω ₂ =1; ψ represents the load balancing factor;

The encoding used in the MESH network consists of two identical component encoders (ENC1, ENC2), each inputting a pair of information bits (a1, a2), outputting system bits (u1, u2) and check bits (p, g); the ENC1 and ENC2 use an 8-state encoder to map the first bit of the input data stream to u1 and the second bit to u2. In one ENC, a check bit is output for each pair of bits, and then the check bits (p, g) are calculated.

In this embodiment, preferably, the noise includes one or more of Gaussian white noise, narrowband noise, periodic noise asynchronous with the power frequency, periodic noise synchronous with the power frequency, and single event impulse noise.

In this embodiment, preferably, the method for processing the generated noise at the signal transmitting end comprises the following steps:

Encode the signal data to be sent, and perform spectrum shaping precoding after encoding;

Performing spectrum shaping processing on the frequency domain data after spectrum shaping precoding to obtain frequency domain signal data after spectrum shaping;

Subcarrier mapping is performed on the frequency domain signal data after spectrum shaping for OFDM modulation.

In this embodiment, preferably, the method for processing the generated noise at the receiving end of the signal comprises the following steps:

Perform OFDM demodulation processing on the received digital baseband signal;

Performing spectrum shaping decoding processing on the OFDM demodulated signal to restore the signal data to the signal data before spectrum shaping precoding processing;

The signal data after the spectrum shaping decoding processing is decoded.

In this embodiment, preferably, the access method of the wired MESH specifically includes: using Category 5e, Category 6 or above network cables, wiring the network cables in advance within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and setting a mother router and several sub-routers to access the network connection medium to form a pre-access network.

In this embodiment, preferably, the cloud platform in S4 makes a comprehensive decision based on the request information reported by the received MESH network to determine the access point, specifically including:

The cloud platform traverses each data with a valid status in the received request information and determines the access point through comprehensive decision; wherein, when the pre-access network has completed networking or the networking has timed out, the cloud platform sets the status of the corresponding data to invalid.

In this embodiment, preferably, the access point accesses the pre-access network, specifically including:

The access point turns on the service set identifier and waits for the pre-access network to join;

The access point detects whether the pre-access network is accessed within a preset time period, and reports the access result to the cloud platform; wherein, after receiving the access result, the cloud platform sends the access result to the user end.

Example 2

Please refer to FIG. 1 to FIG. 4 , the present invention provides a technical solution: a router deep networking method for low-voltage carrier communication, comprising the following steps:

S1. Select low-voltage carrier for communication: use the existing low-voltage distribution network as the transmission medium for data transmission and information exchange;

S2. Low-voltage carrier communication noise processing: According to the causes and characteristics of power line communication channel noise, the generated noise is processed at the signal sending and receiving ends respectively to reduce the impact of noise on signal transmission;

S3. Network deployment: Select the wireless MESH access method, set up a mother router and several child routers to access the network connection medium within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and form a pre-access network;

S4. Networking through MESH network: The pre-access network sends a join request signal to the MESH network. When the MESH network receives the join request sent by the pre-access network, it reports the request information to the cloud platform for decision-making by the cloud platform. The cloud platform makes a comprehensive decision based on the request information reported by the received MESH network, determines the access point, and notifies the access point to access the pre-access network to complete the networking;

S5. Network optimization: Using the 802.11k protocol, freely select the number of sub-routers in the network, increase the signal coverage, enable seamless roaming between the mother router and several sub-routers, reduce latency, and achieve automatic network switching.

In this embodiment, preferably, the method for selecting a low-voltage carrier for communication in S1 specifically includes the following steps:

The transmitting end adopts continuous phase FSK modulation to obtain the signal of mark frequency and space frequency, and sends the signal to the digital-to-analog converter;

Establishing a target function based on the signal using the digital-to-analog converter;

By calculating the optimal solution of the objective function as the optimal path between the sending end and the receiving end;

A signal is sent to a receiving end according to the optimal path.

In this embodiment, preferably, the method for processing the generated noise at the signal transmitting end comprises the following steps:

Encode the signal data to be sent, and perform spectrum shaping precoding after encoding;

Performing spectrum shaping processing on the frequency domain data after spectrum shaping precoding to obtain frequency domain signal data after spectrum shaping;

Subcarrier mapping is performed on the frequency domain signal data after spectrum shaping for OFDM modulation.

In this embodiment, preferably, the method for processing the generated noise at the receiving end of the signal comprises the following steps:

Perform OFDM demodulation processing on the received digital baseband signal;

Performing spectrum shaping decoding processing on the OFDM demodulated signal to restore the signal data to the signal data before spectrum shaping precoding processing;

The signal data after the spectrum shaping decoding processing is decoded.

In this embodiment, preferably, the access mode of the wireless MESH includes a dual-band wireless networking mode and a triple-band wireless networking mode.

In this embodiment, preferably, the cloud platform in S4 makes a comprehensive decision based on the request information reported by the received MESH network to determine the access point, specifically including:

The cloud platform traverses each data with a valid status in the received request information and determines the access point through comprehensive decision; wherein, when the pre-access network has completed networking or the networking has timed out, the cloud platform sets the status of the corresponding data to invalid.

In this embodiment, preferably, the access point accesses the pre-access network, specifically including:

The access point turns on the service set identifier and waits for the pre-access network to join;

The access point detects whether the pre-access network is accessed within a preset time period, and reports the access result to the cloud platform; wherein, after receiving the access result, the cloud platform sends the access result to the user end.

Referring to Figures 1 to 3, the present invention adopts low-voltage carrier communication technology to transmit analog or digital signals at high speed through carrier mode, thereby increasing the signal transmission rate and effectively reducing the delay; by performing noise processing on low-voltage carrier communication, the noise can be processed separately at the transmitting end and the receiving end, thereby achieving accurate and efficient reception of low-voltage carrier signals, reducing the interference of noise on signal transmission, and thus improving and enhancing the data transmission performance; by selecting a wired MESH or wireless MESH access method, and setting a mother router and several sub-routers to access the network connection medium, a pre-access network is formed, and the pre-access network is connected to the MESH network for networking, which can increase the network coverage, reduce delays, and realize automatic network switching, thereby increasing the stability of the network.

The broadband carrier communication network protocol stack defines three layers: the physical layer, the data link layer, and the application layer. The data link layer is divided into the media access control (MAC) sublayer and the network management sublayer. The data link layer directly provides transmission services for the application layer. The data link layer can also be extended to connect with the standard TCPP to realize standard P network communication. At this time, the network layer and the transport layer are introduced, which directly draws on the OSI seven-layer model.

The functions of each level are defined as follows:

1. Application layer: realizes the business data interaction between local communication units and completes data transmission through the data link layer.

2. Data link layer: It is divided into network management sublayer and media access control sublayer (MAC sublayer). The network management sublayer mainly realizes the networking, network maintenance, on-line management and application layer message aggregation and distribution of broadband carrier communication network. The MAC sublayer mainly competes for physical channels through two channel access mechanisms, CSMACCA and TDMA, to realize the reliable transmission of data messages.

3. Physical layer: mainly realizes encoding and modulating the MAC sublayer data message into a broadband carrier signal and sending it to the power line medium; receiving the broadband carrier signal of the power line medium, demodulating it into a data message and handing it over to the MAC sublayer for external processing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A router deep networking method for low-voltage carrier communication, characterized in that it includes the following steps: S1. Select low-voltage carrier for communication: use the existing low-voltage distribution network as the transmission medium for data transmission and information exchange; S2. Low-voltage carrier communication noise processing: According to the causes and characteristics of power line communication channel noise, the generated noise is processed at the signal sending and receiving ends respectively to reduce the impact of noise on signal transmission; S3. Network deployment: Select wired MESH or wireless MESH access mode, set up a mother router and several child routers to access the network connection medium within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and form a pre-access network; S4. Networking through MESH network: The pre-access network sends a join request signal to the MESH network. When the MESH network receives the join request sent by the pre-access network, it reports the request information to the cloud platform for decision-making by the cloud platform. The cloud platform makes a comprehensive decision based on the request information reported by the received MESH network, determines the access point, and notifies the access point to access the pre-access network to complete the networking; S5. Network optimization: Using 802.11k protocol, freely select the number of sub-routers in the network, increase signal coverage, enable seamless roaming between the mother router and several sub-routers, reduce latency, and achieve automatic network switching; The method for selecting a low voltage carrier for communication in S1 specifically comprises the following steps: The transmitting end adopts continuous phase FSK modulation to obtain the signal of mark frequency and space frequency, and sends the signal to the digital-to-analog converter; Establishing a target function based on the signal using the digital-to-analog converter; By calculating the optimal solution of the objective function as the optimal path between the sending end and the receiving end; Sending a signal to a receiving end according to the optimal path; The objective function is expressed by the following formula: fitness=min(ω1T+ω2LR+ψ); Where fitness represents the objective function; T represents the delay sub-objective function; LR represents the packet loss rate sub-objective function; ω1 represents the weight factor corresponding to the delay sub-objective function, ω2 represents the weight factor corresponding to the packet loss rate sub-objective function, and satisfies ω1+ω2＝1; ψ represents the load balancing factor; The encoding used by the MESH network is composed of two identical component encoders (ENC1, ENC2), each inputting a pair of information bits (a1, a2), outputting system bits (u1, u2) and check bits (p, g); the ENC1 and ENC2 use an 8-state encoder to map the first bit of the input data stream to u1 and the second bit to u2. In one ENC, a check bit is output for each pair of bits, and then the check bits (p, g) are calculated; The noise includes one or more of Gaussian white noise, narrowband noise, periodic noise asynchronous with the power frequency, periodic noise synchronous with the power frequency, and single event impulse noise; The method for processing the generated noise at the signal transmitting end comprises the following steps: Encode the signal data to be sent, and perform spectrum shaping precoding after encoding; Performing spectrum shaping processing on the frequency domain data after spectrum shaping precoding to obtain frequency domain signal data after spectrum shaping; Perform subcarrier mapping on the frequency domain signal data after spectrum shaping for OFDM modulation; The method for processing the generated noise at the receiving end of the signal comprises the following steps: Perform OFDM demodulation processing on the received digital baseband signal; Performing spectrum shaping decoding processing on the OFDM demodulated signal to restore the signal data to the signal data before spectrum shaping precoding processing; Decoding the signal data after the spectrum shaping decoding process; The access method of the wired MESH specifically includes: using Category 5e, Category 6 or above network cables, wiring the network cables in advance within the home network, community network, enterprise network and metropolitan area network that needs to be networked, and setting a mother router and several sub-routers to access the network connection medium to form a pre-access network. 2. According to a low-voltage carrier communication router deep networking method according to claim 1, it is characterized in that: the access mode of the wireless MESH includes a dual-band wireless networking mode and a triple-band wireless networking mode. 3. A method for deep networking of routers for low-voltage carrier communication according to claim 1, characterized in that: the cloud platform in S4 makes a comprehensive decision based on the request information reported by the received MESH network to determine the access point, specifically including: The cloud platform traverses each data with a valid status in the received request information and determines the access point through comprehensive decision; wherein, when the pre-access network has completed networking or the networking has timed out, the cloud platform sets the status of the corresponding data to invalid. 4. A router deep networking method for low-voltage carrier communication according to claim 3, characterized in that: the access point accesses the pre-access network, specifically comprising: The access point turns on the service set identifier and waits for the pre-access network to join; The access point detects whether the pre-access network is accessed within a preset time period, and reports the access result to the cloud platform; wherein, after receiving the access result, the cloud platform sends the access result to the user end.