CN107509206B - Data networking method for intelligent lighting system - Google Patents
Data networking method for intelligent lighting system Download PDFInfo
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- CN107509206B CN107509206B CN201710739810.2A CN201710739810A CN107509206B CN 107509206 B CN107509206 B CN 107509206B CN 201710739810 A CN201710739810 A CN 201710739810A CN 107509206 B CN107509206 B CN 107509206B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a data networking method for an intelligent lighting system, which comprises the following steps: step one, setting an illumination controller in the intelligent illumination system as a networking primary node of a first-layer network, and coding each primary node; acquiring the strength of a first communication signal between every two primary nodes in a first-layer network, and networking the primary nodes according to the strength of the first communication signal; step three, selecting a gateway closest to the first-level node as a backbone node of a second-layer network; and fourthly, acquiring the strength of the second communication signals between the trunk node and all the primary nodes, and selecting the primary node with the strongest second communication signal for networking. The method can preferentially select the optimal transmission path of the control command, and can improve the data transmission stability and transmission speed in the wireless communication with large range and large data volume when adopting the common 2.4G wireless technology.
Description
Technical Field
The invention relates to the technical field of wireless networking, in particular to a data networking method for an intelligent lighting system.
Background
The intelligent illumination is a distributed wireless remote measurement, remote control and remote communication control system which is formed by utilizing the technologies of a computer, wireless communication data transmission, a spread spectrum power carrier communication technology, computer intelligent information processing, energy-saving electric appliance control and the like. The method has the characteristics of light brightness intensity adjustment, light soft start, timing control, scene setting and the like.
At present, Wi-Fi technology and 6LowPAN technology are frequently adopted in wireless networking of intelligent lighting, a star network topology is adopted, and the network coverage range is the signal coverage range of a wireless router. When a low-speed wireless network is networked, the requirement of power consumption is limited, the communication distance between single points is often limited to about 50 meters, and if a star-type wireless network topology is used, the communication distance of backbone nodes needs to be far enough. In addition, after networking is completed, in order to maintain the needs of the network, very high-frequency data communication still needs to be performed, when networking of the low-power wireless network is performed, because the transmission rate of the low-power wireless network is low, and most of the time, there is not much data traffic, at this time, a large amount of network maintenance data still flows in the whole network, when the network needs to perform large-amount data transmission, the network maintenance data packet does not stop, so that a large amount of data packets are transmitted simultaneously, channel congestion is caused by concurrent wireless signals, the channel congestion can cause that networking data packets cannot be transmitted, the stability of the network becomes poor, and even network breakdown is caused.
Disclosure of Invention
The present invention aims to provide a data networking method for an intelligent lighting system to solve the above problems.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a data networking method for an intelligent lighting system, comprising:
step one, setting an illumination controller in the intelligent illumination system as a networking primary node of a first-layer network, and coding each primary node;
acquiring the strength of a first communication signal between every two primary nodes in a first-layer network, and networking the primary nodes according to the strength of the first communication signal;
step three, selecting a gateway closest to the first-level node as a backbone node of a second-layer network;
and fourthly, acquiring the strength of the second communication signals between the trunk node and all the primary nodes, and selecting the primary node with the strongest second communication signal for networking.
Preferably, the process of obtaining the strength of the first communication signal between the two primary nodes includes:
step 1, setting one primary node as a command initiating node and the other primary node as a command receiving node;
step 2, returning the round-trip communication times to zero;
step 3, the command initiating node sends a first communication signal to a command receiving node;
step 4, acquiring the real-time strength of the first communication signal received by the command receiving node, comparing the real-time strength with the signal strength threshold of the first communication signal, if the real-time strength is not less than the signal strength threshold of the first communication signal, turning to step 5, and if the real-time strength is less than the signal strength threshold of the first communication signal, stopping;
step 5, the command receiving node sends a feedback signal to the command initiating node;
step 6, obtaining the strength of the feedback signal received by the command initiating node, comparing the strength of the feedback signal with the signal strength threshold of the first communication signal, if the strength of the feedback signal is not less than the signal strength threshold of the first communication signal, turning to step 7, and if the strength of the feedback signal is less than the signal strength threshold of the first communication signal, turning to step 8;
step 7, adding 1 to the numerical value of the round-trip communication times;
step 8, comparing the round-trip communication times with a round-trip communication time threshold, if the round-trip communication times is smaller than the round-trip communication time threshold, turning to step 3, and if the round-trip communication times is equal to the round-trip communication time threshold, turning to step 9;
step 9, calculating and obtaining the first communication signal strength between the command initiating node and the command receiving node according to the real-time strength and the round-trip communication times of the first communication signal
Where n is the number of round-trip communications, qiThe real-time signal strength when the number of round-trip communication times is i.
Preferably, the process of networking the primary node according to the strength of the first communication signal includes:
setting a first networking strength threshold value;
determining whether a first communication signal strength between the command originating node and the command receiving node is less than the first networking threshold,
if yes, signal channels of the command initiating node and the command receiving node are removed,
and if not, adding the signal channels of the command initiating node and the command receiving node into the first-layer network networking.
Preferably, the selecting the node with the strongest second communication signal to perform the networking includes:
in the first layer of network, the initial command initiating node sends an uplink control command, the uplink control command passes through the least primary node, reaches the primary node with the strongest second communication signal, and passes through the primary node with the strongest second communication signal to be sent to the backbone node;
and the backbone node sends a downlink control command to the primary node with the strongest second communication signal, and in the first-layer network, the primary node with the strongest second communication signal sends the downlink control command which passes through the least primary node and then reaches the final command receiving node.
Therefore, the control command routing networking method for the double-layer network of the intelligent lighting system, disclosed by the invention, is used for networking the primary node according to the strength of the first communication signal, selecting the primary node with the strongest second communication signal to be networked with the gateway, and preferentially selecting the optimal transmission path of the control command, so that the data transmission stability and the transmission speed in the wireless communication with large range and large data volume can be improved when a common 2.4G wireless technology is adopted.
Drawings
Fig. 1 is a flowchart of a control command routing networking method for a two-layer network of an intelligent lighting system according to the present disclosure;
fig. 2 is a flow chart of a method of obtaining the strength of a first communication signal between two primary nodes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example one
The embodiment discloses a control command routing networking method for a two-layer network of an intelligent lighting system, as shown in fig. 1, the method includes:
step one, setting the lighting controller in the intelligent lighting system as a networking primary node of a first-layer network, and coding each primary node. For example, if there are four lighting controllers in the intelligent lighting system, the four lighting controllers are set as networking level nodes of the first-level network and are respectively encoded as a1, a2, A3 and a 4.
And secondly, acquiring the strength of a first communication signal between every two primary nodes in the first-layer network, and networking the primary nodes according to the strength of the first communication signal.
As shown in fig. 2, the process of obtaining the strength of the first communication signal between two primary nodes includes:
step 1, setting one primary node as a command initiating node and the other primary node as a command receiving node;
step 2, returning the round-trip communication times to zero;
step 3, the command initiating node sends a first communication signal to a command receiving node;
step 4, acquiring the real-time strength of the first communication signal received by the command receiving node, comparing the real-time strength with the signal strength threshold of the first communication signal, if the real-time strength is not less than the signal strength threshold of the first communication signal, turning to step 5, and if the real-time strength is less than the signal strength threshold of the first communication signal, stopping;
step 5, the command receiving node sends a feedback signal to the command initiating node;
step 6, obtaining the strength of the feedback signal received by the command initiating node, comparing the strength of the feedback signal with the signal strength threshold of the first communication signal, if the strength of the feedback signal is not less than the signal strength threshold of the first communication signal, turning to step 7, and if the strength of the feedback signal is less than the signal strength threshold of the first communication signal, turning to step 8;
step 7, adding 1 to the numerical value of the round-trip communication times;
step 8, comparing the round-trip communication times with a round-trip communication time threshold, if the round-trip communication times is smaller than the round-trip communication time threshold, turning to step 3, and if the round-trip communication times is equal to the round-trip communication time threshold, turning to step 9;
step 9, calculating and obtaining the first communication signal strength between the command initiating node and the command receiving node according to the real-time strength and the round-trip communication times of the first communication signal
Where n is the number of round-trip communications, qiThe real-time signal strength when the number of round-trip communication times is i.
For example, if the primary node a1 is set as a command initiating node and the primary node a2 is set as a command receiving node, the strength of the first communication signal between the primary node a1 and the primary node a2 can be obtained through the operations of step 3 to step 9. By analogy, the strength of the first communication signal between the primary node a1 and the primary node A3, the strength of the first communication signal between the primary node a1 and the primary node a4, the strength of the first communication signal between the primary node a2 and the primary node A3, the strength of the first communication signal between the primary node a2 and the primary node a4, and the strength of the first communication signal between the primary node A3 and the primary node a4 can be obtained.
The process of networking the first-level nodes according to the strength of the first communication signal comprises the following steps:
setting a first networking strength threshold value;
determining whether a first communication signal strength between the command originating node and the command receiving node is less than the first networking threshold,
if yes, signal channels of the command initiating node and the command receiving node are removed,
and if not, adding the signal channels of the command initiating node and the command receiving node into the first-layer network networking.
Continuing with the example of the primary nodes a1, a2, A3, and a4, if the strength of the first communication signal between the primary node a1 and the primary node a2 is 100, the strength of the first communication signal between the primary node a1 and the primary node A3 is 90, the strength of the first communication signal between the primary node a1 and the primary node a4 is 90, the strength of the first communication signal between the primary node a2 and the primary node A3 is 60, the strength of the first communication signal between the primary node a2 and the primary node a4 is 100, the strength of the first communication signal between the primary node A3 and the primary node a4 is 60, and the set first networking strength threshold is 70 dB. Signal channels of the command originating node and the command receiving node having the first communication signal strength of less than 70dB are rejected. In the embodiment, the signal channels of the primary node a2 and the primary node A3, and the signal channels of the primary node A3 and the primary node a4 are eliminated. And the command receiving node with the first communication signal strength not less than 70dB adds the signal channels of the command initiating node and the command receiving node into the first-layer network group. In this embodiment, the signal channels of the first level node a1 and the first level node a2, the signal channels of the first level node a1 and the first level node A3, the signal channels of the first level node a1 and the first level node a4, and the signal channels of the first level node a2 and the first level node a4 are added to the first layer of network networking.
And step three, selecting the gateway closest to the first-level node as a backbone node of the second-layer network.
And fourthly, acquiring the strength of the second communication signals between the trunk node and all the primary nodes, and selecting the primary node with the strongest second communication signal for networking.
Wherein, the process of selecting the node with the strongest second communication signal for networking comprises the following steps:
in the first layer of network, the initial command initiating node sends an uplink control command, the uplink control command passes through the least primary node, reaches the primary node with the strongest second communication signal, and passes through the primary node with the strongest second communication signal to be sent to the backbone node;
and the backbone node sends a downlink control command to the primary node with the strongest second communication signal, and in the first-layer network, the primary node with the strongest second communication signal sends the downlink control command which passes through the least primary node and then reaches the final command receiving node.
In this embodiment, if the gateway G is a backbone node, the first-level node with the strongest second communication signal is the first-level node a2, and the first-level node A3 is an initial command initiating node for data uplink communication and a final command receiving node for data downlink communication, respectively.
Then, in data communication, in the first layer network, level one node a3 issues an upstream control command that traverses possible paths including: A3-A1-A2 and A3-A1-A4-A2. The path A3-a1-a2 is the path where the uplink control command passes through the least primary node from the primary node A3 to the primary node a2, and the uplink control command is sent by the primary node A3 in this embodiment and passes through the primary node a1 to reach the primary node a2, because the primary node a2 is networked with the backbone node (gateway G), the uplink control command finally passes through the primary node a2 to reach the gateway G.
During data downlink communication, the backbone node sends downlink control commands to the primary node A2, and in the first-layer network, the primary node A2 sends downlink control commands again, and the downlink control commands only pass through the possible paths of A2-A1-A3. The path A2-A1-A3 is the path of the primary node through which the downstream control command travels least from the primary node A2 to the primary node A3. The downlink control command in this embodiment is sent by the backbone node, and finally reaches the primary node A3 through the primary node a2 and the primary node a 1.
In the first layer network, the primary node A3 is the initial command initiating node, and the primary node with the strongest second communication signal is the primary node a 2. At this time, the initial command initiating node a3 issues an uplink control command, and possible paths traversed by the uplink control command include: A3-A1-A2 and A3-A1-A4-A2. The path A3-a1-a2 is the path from the uplink control command to the primary node that passes from the primary node A3 to the primary node a2, and the uplink control command is sent by the primary node A3 in this embodiment and reaches the primary node a2 through the primary node a1, and because the primary node a2 is networked with the backbone node (gateway G), the uplink control command finally reaches the gateway G through the primary node a 2.
It can be seen that, the control command routing networking method for a dual-layer network of an intelligent lighting system disclosed in this embodiment performs networking on a primary node according to the strength of the first communication signal, selects a primary node with the strongest second communication signal to perform networking with a gateway, and can preferentially select an optimal transmission path of the control command, that is, the node signal strength loss in a path through which the control command passes in the transmission process is minimal, and when a general 2.4G wireless technology is adopted, the data transmission stability and transmission speed in wireless communication with a large range and a large data volume can be improved.
Example two
The embodiment discloses another data networking method for an intelligent lighting system, in the method, two first-layer networks are included, and an initial command initiating node and a final command receiving node are respectively in the two first-layer networks, then the method comprises:
constructing a command-initiating first layer network and a command-receiving first layer network according to the method of embodiment one;
in the first layer network of command initiation, the initiating node is initially commanded to send an uplink control command;
the uplink control command reaches the primary node with the strongest second communication signal after passing through the least primary node, and then is sent to the command initiating main node through the primary node with the strongest second communication signal;
the command initiating trunk node receives the uplink control command and sends a parallel control command to a command receiving trunk node;
the command receiving backbone node receives the parallel control command and sends a downlink control command to the command receiving first-layer network;
in the command receiving first-layer network, the downlink control command starts from the first-level node with the strongest second communication signal and reaches the final command receiving node in the command receiving first-layer network after passing through the least first-level node.
In this embodiment, the two first-layer networks correspond to two backbone nodes. In addition, when data is transmitted between N first-layer networks, the number of the backbone nodes is N, where N is less than or equal to N, that is, different first-layer networks may correspond to the same backbone node.
In this embodiment, through the connection of the backbone node, when a general 2.4G wireless technology is adopted, the range of data communication is greatly improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. A method of data networking for an intelligent lighting system, comprising:
step one, setting an illumination controller in the intelligent illumination system as a networking primary node of a first-layer network, and coding each primary node;
step two, acquiring the intensity of a first communication signal between every two primary nodes in the first-layer network, and networking the primary nodes according to the intensity of the first communication signal, wherein,
the process of acquiring the strength of the first communication signal between every two first-level nodes in the first-layer network comprises the following steps: setting one level node as command initiating node and the other level node as command receiving node,
the process of networking the first-level nodes according to the strength of the first communication signal comprises the following steps:
setting a first networking strength threshold value;
determining whether a first communication signal strength between the command originating node and the command receiving node is less than the first networking threshold,
if yes, signal channels of the command initiating node and the command receiving node are removed,
if not, adding the signal channels of the command initiating node and the command receiving node into the first layer of network networking;
step three, selecting a gateway closest to the first-level node as a backbone node of a second-layer network;
and fourthly, acquiring the strength of the second communication signals between the trunk node and all the primary nodes, and selecting the primary node with the strongest second communication signal for networking.
2. The method of claim 1, wherein the step of obtaining the strength of the first communication signal between two primary nodes comprises:
step 1, setting one primary node as a command initiating node and the other primary node as a command receiving node;
step 2, returning the round-trip communication times to zero;
step 3, the command initiating node sends a first communication signal to a command receiving node;
step 4, acquiring the real-time strength of the first communication signal received by the command receiving node, comparing the real-time strength with the signal strength threshold of the first communication signal, if the real-time strength is not less than the signal strength threshold of the first communication signal, turning to step 5, and if the real-time strength is less than the signal strength threshold of the first communication signal, stopping;
step 5, the command receiving node sends a feedback signal to the command initiating node;
step 6, obtaining the strength of the feedback signal received by the command initiating node, comparing the strength of the feedback signal with the signal strength threshold of the first communication signal, if the strength of the feedback signal is not less than the signal strength threshold of the first communication signal, turning to step 7, and if the strength of the feedback signal is less than the signal strength threshold of the first communication signal, turning to step 8;
step 7, adding 1 to the numerical value of the round-trip communication times;
step 8, comparing the round-trip communication times with a round-trip communication time threshold, if the round-trip communication times is smaller than the round-trip communication time threshold, turning to step 3, and if the round-trip communication times is equal to the round-trip communication time threshold, turning to step 9;
step 9, calculating and obtaining the first communication signal strength between the command initiating node and the command receiving node according to the real-time strength and the round-trip communication times of the first communication signal
Where n is the number of round-trip communications, qiThe real-time signal strength when the number of round-trip communication times is i.
3. The data networking method for the intelligent lighting system according to claim 2, wherein the selecting the node with the strongest second communication signal to be networked comprises:
in the first layer of network, the initial command initiating node sends an uplink control command, the uplink control command passes through the least primary node, reaches the primary node with the strongest second communication signal, and passes through the primary node with the strongest second communication signal to be sent to the backbone node;
and the backbone node sends a downlink control command to the primary node with the strongest second communication signal, and in the first-layer network, the primary node with the strongest second communication signal sends the downlink control command which passes through the least primary node and then reaches the final command receiving node.
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