Optical fiber powered wireless access controller and communication method thereof

Abstract

The present invention relates to the field of wireless communication technology, and in particular to a fiber-optic powered wireless access controller and a communication method thereof, comprising: connecting the fiber-optic powered wireless access controller to a fiber-optic network, connecting a wireless access point to the controller via a wired or wireless method, synchronously configuring network parameters on the controller, and setting relevant parameters of the wireless access point; the controller detecting optical signal strength via an optical fiber interface to identify whether the optical signal is within a normal range; if the signal strength is insufficient, synchronously checking whether the optical fiber connection is correct and whether the optical module is normal; if the check result is yes, performing a handshake with an optical line terminal in the optical fiber network to establish a communication link. The present invention ensures coordinated operation of various parts by initializing configuration device parameters and connection methods, reduces subsequent failures caused by configuration confusion, and ensures a stable and high-speed data transmission channel based on the optical fiber link. It also utilizes mature optical fiber protocols to effectively carry large amounts of data.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communications, and in particular to an optical fiber powered wireless access controller and a communication method thereof. Background Art

[0002] Fiber-powered wireless access controllers are key devices in modern networking. They cleverly combine fiber-powered and wireless access control functions. On the one hand, they utilize optical fiber to transmit power, eliminating the need for additional power cables, making them convenient and scalable for deployment. On the other hand, they centrally manage numerous wireless access points, allowing for flexible configuration of wireless network parameters and precise control of user access rights.

[0003] At the same time, with the high-speed and stable data transmission capabilities of optical fiber, smooth communication is ensured, which can effectively improve the reliability and management efficiency of wireless networks. It has broad application prospects in campuses, corporate offices, and commercial places.

[0004] Currently, fiber-powered wireless access controllers typically do not have redundant fiber links at the communication level. While this setup effectively reduces communication costs and deployment complexity, its operational stability is limited, and it is usually unable to provide long-term, stable service in the communication scenarios in which it is located.

[0005] To this end, a fiber-powered wireless access controller and a communication method thereof are proposed. Summary of the Invention

[0006] In view of the above shortcomings of the prior art, the present invention provides a fiber-powered wireless access controller and a communication method thereof, which solve the technical problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] In a first aspect, a communication method for a fiber-powered wireless access controller includes:

[0009] Connect the fiber-optic powered wireless access controller to the fiber-optic network, connect the wireless access point to the controller via wired or wireless means, synchronously configure the network parameters on the controller, and set the relevant parameters of the wireless access point; the controller detects the optical signal strength through the fiber-optic interface and identifies whether the optical signal is within the normal range. If the signal strength is insufficient, it synchronously checks whether the optical fiber connection is correct and whether the optical module is normal. If the check result is yes, it shakes hands with the optical line terminal in the fiber-optic network to establish a communication link; the controller establishes a connection with the wireless access point through the wireless communication module and synchronously authenticates the access point; the controller sends control instructions to the wireless access point, and the wireless access point transmits user data to the controller, and the controller forwards the data to the core network; the wireless access point feeds back status information to the controller, and the controller monitors whether the wireless access point is abnormal in real time based on the status information of the wireless access point; during the communication stage, the communication data is encrypted and transmitted.

[0010] Furthermore, the network parameters configured on the controller include IP address, subnet mask, default gateway, VLAN settings, and routing protocol configuration. The wireless access point-related parameters set include: SSID, frequency band, channel, encryption method, transmit power, wireless mode, client access number limit, and MAC address filtering;

[0011] The controller configures the same number of redundant optical fiber links based on the number of its main optical fiber links, and simultaneously sets the trigger logic of the redundant optical fiber links, so that the controller adaptively switches the redundant optical fiber links in power supply and communication scenarios based on the trigger logic.

[0012] Furthermore, the triggering logic of the redundant optical fiber link is expressed as:

[0013]

[0014] Where: S switch is the trigger judgment value; F main F is the main optical fiber link fault judgment value; backup is the redundant optical fiber link fault judgment value; T fault The main optical fiber link failure continues; T threshold is a preset fault duration threshold;

[0015] Among them, S switch =1 triggers the switching operation of the redundant optical fiber link, otherwise, the switching operation is not triggered. (Fmain=0)and(Fbackup=1)and(Tfault≥Tthreshold) mean that the three conditions are met at the same time.

[0016] Furthermore, the redundant optical fiber link fault determination value F backup The calculation logic and the main optical fiber link fault judgment value Fmain The calculation logic is the same as that of the main optical fiber link fault judgment value F main The calculation logic is expressed as:

[0017]

[0018] Where: F(1) main 、F(2) main 、F(3)、 main F(4) main is the judgment value based on optical power detection, the judgment value based on bit error rate detection, the judgment value based on link heartbeat signal detection, and the judgment value based on link packet loss rate detection; P receive is the optical power of the current main optical fiber link; P min The minimum optical power threshold allowed to maintain normal communication; BER is the bit error rate of the current main optical fiber link; BER max is the preset maximum allowable bit error rate threshold; H receive PLR is the packet loss rate during the transmission of the current main optical fiber link; max is the preset maximum allowed packet loss rate threshold;

[0019] Among them, F main =F(1) main +F(2) main +F(3)+ main F(4) main .

[0020] Furthermore, the logic for detecting the optical signal strength and identifying whether the optical signal is within a normal range is expressed as follows:

[0021]

[0022] Where: P r is the optical power at the receiving end; P t is the optical power at the transmitting end; n is the number of loss links in the optical fiber link; Li is the loss value generated by the i-th link in the optical fiber link; (P min , P max ) is the normal range of optical signal intensity;

[0023] Among them, if formula (2) holds true, it means that the optical signal is within the normal range. When the optical signal is not within the normal range, it switches to the redundant optical fiber link in real time and further performs detection and identification operations. When the redundant optical fiber link is still not within the normal range, it switches to the main optical fiber link corresponding to the redundant optical fiber link. This process is repeated until the identification result is yes.

[0024] Furthermore, the controller complies with any one of the IEEE 802.11 standard protocol, the IEEE 802.15.4 standard protocol, and the IEEE 802.16 standard protocol when establishing a connection with a wireless access point;

[0025] When authenticating the access point, verification is performed using any one of PSK, digital certificate, or user name and password.

[0026] Furthermore, the control instructions include frequency band adjustment instructions, channel selection instructions, SSID configuration instructions, wireless encryption mode and key setting instructions, transmit power adjustment instructions, authentication mode setting instructions, user access number limit instructions, restart instructions, firmware upgrade instructions, and fault diagnosis instructions;

[0027] The control instructions are transmitted in the form of data packets.

[0028] Furthermore, the determination of whether the wireless access point is abnormal is subject to:

[0029]

[0030] Where: AI is the abnormality judgment value of the wireless access point; S is the signal strength of the wireless access point; S ref is the signal strength reference value; S range is the reasonable fluctuation range of signal strength; P is the packet loss rate of the wireless access point; P max is the maximum acceptable threshold of the wireless access point packet loss rate; U is the number of users connected to the wireless access point; U max is the maximum number of users supported by the wireless access point; T is the device temperature; T ref is the device temperature reference value; T range is the normal fluctuation range of the equipment temperature; ω1, ω2, ω3, ω4 are weights;

[0031] The weights ω1, ω2, ω3, and ω4 are all positive numbers, and the sum of the weights ω1, ω2, ω3, and ω4 is 1. If AI ≤ 1.5, the wireless access point is considered normal. If AI > 1.5, the wireless access point is considered abnormal. If the wireless access point is abnormal, the system switches to the redundant optical fiber link.

[0032] Furthermore, the communication data includes a data packet containing a control instruction. During the communication data encryption stage, any existing communication data encryption algorithm is applied to perform encrypted transmission and decrypted reading.

[0033] In a second aspect, a fiber-powered wireless access controller includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the computer program implements the execution steps of the communication method of the fiber-powered wireless access controller.

[0034] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0035] The present invention provides a communication method for a fiber-powered wireless access controller. During execution, the method ensures coordinated operation of various parts by initializing and configuring device parameters and connection modes, thereby reducing subsequent failures caused by configuration confusion. A stable and high-speed data transmission channel is established based on an optical fiber link. Mature optical fiber protocols are utilized to effectively carry large amounts of data, thereby facilitating long-distance communication, communication with wireless access points, and data transmission. At the same time, centralized management of the wireless network and efficient data interaction facilitate flexible adjustment of wireless parameters and forwarding of user data. Status monitoring and feedback can promptly detect and respond to problems, thereby improving the reliability of the entire network. An encryption mechanism is also provided to effectively resist external threats and protect data and network security. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0037] Figure 1 A flow chart of a communication method for a wireless access controller that supplies power to an optical fiber. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0039] The present invention will be further described below with reference to the embodiments.

[0040] Example 1:

[0041] The communication method of the fiber-powered wireless access controller of this embodiment is as follows: Figure 1 Shown, including:

[0042] Connect the fiber-powered wireless access controller to the fiber network, connect the wireless access point to the controller via wired or wireless means, and simultaneously configure network parameters on the controller and set relevant parameters for the wireless access point.

[0043] The network parameters configured on the controller include IP address, subnet mask, default gateway, VLAN settings, and routing protocol configuration. The wireless access point parameters configured include: SSID, frequency band, channel, encryption method, transmit power, wireless mode, client access limit, and MAC address filtering.

[0044] The controller configures the same number of redundant optical fiber links as its main optical fiber links, and simultaneously sets the trigger logic of the redundant optical fiber links, so that the controller can adaptively switch the redundant optical fiber links in power supply and communication scenarios based on the trigger logic;

[0045] The trigger logic of the redundant optical fiber link is expressed as:

[0046]

[0047] Where: S switch is the trigger judgment value; F main F is the main optical fiber link fault judgment value; backup is the redundant optical fiber link fault judgment value; T fault The main optical fiber link failure continues; T threshold is a preset fault duration threshold;

[0048] Among them, S switch =1 triggers the switching operation of the redundant optical fiber link, otherwise, the switching operation is not triggered. (Fmain=0)and(Fbackup=1)and(Tfault≥Tthreshold) mean that the three conditions are met at the same time;

[0049] Redundant optical fiber link fault judgment value F backup The calculation logic and the main optical fiber link fault judgment value F main The calculation logic is the same as that of the main optical fiber link fault judgment value F main The calculation logic is expressed as:

[0050]

[0051] Where: F(1) main 、F(2) main 、F(3)、 main F(4) mainis the judgment value based on optical power detection, the judgment value based on bit error rate detection, the judgment value based on link heartbeat signal detection, and the judgment value based on link packet loss rate detection; P receive is the optical power of the current main optical fiber link; P min The minimum optical power threshold allowed to maintain normal communication; BER is the bit error rate of the current main optical fiber link; BER max is the preset maximum allowable bit error rate threshold; H receive PLR is the packet loss rate during the transmission of the current main optical fiber link; max is the preset maximum allowed packet loss rate threshold;

[0052] Among them, F main =F(1) main +F(2) main +F(3)+ main F(4) main ;

[0053] Through the above logic formula, a specified switching logic is provided for the switching between the main optical fiber link and the redundant optical fiber link.

[0054] The controller detects the optical signal strength through the optical fiber interface and determines whether the optical signal is within the normal range. If the signal strength is insufficient, it simultaneously checks whether the optical fiber connection is correct and whether the optical module is normal. If the check result is yes, it shakes hands with the optical line terminal in the optical fiber network to establish a communication link;

[0055] The logic for detecting the optical signal strength and identifying whether the optical signal is within the normal range is as follows:

[0056]

[0057] Where: P r is the optical power at the receiving end; P t is the optical power at the transmitting end; n is the number of loss links in the optical fiber link; Li is the loss value generated by the i-th link in the optical fiber link; (P min , P max ) is the normal range of optical signal intensity;

[0058] Among them, if formula (2) holds true, it means that the optical signal is within the normal range. When the optical signal is not within the normal range, it switches to the redundant optical fiber link in real time and further performs detection and identification operations. When the redundant optical fiber link is still not within the normal range, it switches to the main optical fiber link corresponding to the redundant optical fiber link, and repeats until the identification result is yes;

[0059] The above logic formula limits the logic of optical signal intensity detection and identification of whether the optical signal is within the normal range, ensuring stable output of the judgment result.

[0060] The controller establishes a connection with the wireless access point through the wireless communication module and simultaneously authenticates the access point;

[0061] The controller sends control instructions to the wireless access point, the wireless access point transmits user data to the controller, and the controller forwards the data to the core network;

[0062] The wireless access point feeds back status information to the controller, and the controller monitors whether the wireless access point is abnormal in real time based on the status information of the wireless access point;

[0063] The determination of whether a wireless access point is abnormal is subject to:

[0064]

[0065] Where: AI is the abnormality judgment value of the wireless access point; S is the signal strength of the wireless access point; S ref is the signal strength reference value; S range is the reasonable fluctuation range of signal strength; P is the packet loss rate of the wireless access point; P max is the maximum acceptable threshold of the wireless access point packet loss rate; U is the number of users connected to the wireless access point; U max is the maximum number of users supported by the wireless access point; T is the device temperature; T ref is the device temperature reference value; T range is the normal fluctuation range of the equipment temperature; ω1, ω2, ω3, ω4 are weights;

[0066] The weights ω1, ω2, ω3, and ω4 are all positive numbers, and the sum of the weights ω1, ω2, ω3, and ω4 is 1. If AI ≤ 1.5, the wireless access point is considered normal. If AI > 1.5, the wireless access point is considered abnormal. If the wireless access point is abnormal, the system switches to the redundant optical fiber link.

[0067] The above logic formula is used to determine whether the wireless access point is abnormal, ensuring more stable execution of communication tasks in the final communication stage.

[0068] During the communication phase, the communication data is encrypted and transmitted.

[0069] In this embodiment, initial configuration is used to coordinate equipment and reduce failures. Fiber optic link establishment provides a stable, high-speed data transmission channel that facilitates long-distance communication. Wireless access point communication and data transmission are centrally managed and efficiently interact with each other. Status monitoring enables timely response to problems, and communication security guarantees protect against external threats, laying the foundation for stable network operation.

[0070] Example 2:

[0071] At the implementation level, based on Example 1, this embodiment further specifically describes the communication method of the fiber-powered wireless access controller in Example 1:

[0072] When establishing a connection between the controller and the wireless access point, the controller complies with any one of the IEEE 802.11 standard protocols, the IEEE 802.15.4 standard protocols, and the IEEE 802.16 standard protocols.

[0073] When authenticating the access point, use PSK, digital certificate, or username and password.

[0074] Control instructions include frequency band adjustment instructions, channel selection instructions, SSID configuration instructions, wireless encryption method and key setting instructions, transmit power adjustment instructions, authentication method setting instructions, user access number limit instructions, restart instructions, firmware upgrade instructions, and fault diagnosis instructions;

[0075] When the control instructions are transmitted, they are transmitted in the form of data packets;

[0076] The communication data includes data packets containing control instructions. During the communication data encryption stage, any existing communication data encryption algorithm is applied to encrypt transmission and decrypt reading.

[0077] In this embodiment, through the above settings, further step execution data support is provided for the method in Example 1, ensuring that the method in Example 1 can be executed stably.

[0078] Example 3:

[0079] At the implementation level, based on Example 1, this embodiment further specifically describes the communication method of the fiber-powered wireless access controller in Example 1:

[0080] A fiber-powered wireless access controller includes a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the computer program is executed by the processor, the execution steps of the communication method of the fiber-powered wireless access controller are realized.

[0081] In summary, during the execution of the method in the above embodiment, by initializing the configuration of device parameters and connection methods, it can ensure the coordinated operation of various parts and reduce subsequent failures caused by configuration confusion. It also establishes a stable and high-speed data transmission channel based on the optical fiber link, and uses mature optical fiber protocols to effectively carry large amounts of data, thereby facilitating long-distance communication, communication with wireless access points and data transmission. At the same time, it centrally manages the wireless network and interacts with efficient data, facilitates flexible adjustment of wireless parameters and forwarding of user data, and status monitoring and feedback can promptly detect and respond to problems, thereby improving the reliability of the overall network. It is also equipped with an encryption mechanism to effectively resist external threats and protect data and network security.

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A communication method for a fiber-optic powered wireless access controller, characterized in that: include: Connect the fiber-powered wireless access controller to the fiber network, connect the wireless access point to the controller via wired or wireless means, and simultaneously configure network parameters on the controller and set relevant parameters for the wireless access point. The controller detects the optical signal strength through the optical fiber interface and determines whether the optical signal is within the normal range. If the signal strength is insufficient, it simultaneously checks whether the optical fiber connection is correct and whether the optical module is normal. If the check result is yes, it shakes hands with the optical line terminal in the optical fiber network to establish a communication link; The controller establishes a connection with the wireless access point through the wireless communication module and simultaneously authenticates the wireless access point; The controller sends control instructions to the wireless access point, the wireless access point transmits user data to the controller, and the controller forwards the data to the core network; The wireless access point feeds back status information to the controller, and the controller monitors whether the wireless access point is abnormal based on the status information of the wireless access point in real time; During the communication phase, the communication data is encrypted and transmitted; The controller is an AC or AP device, and when the controller is connected to a wireless access point by wire, power is supplied and communication is performed via optical fiber; The network parameters configured on the controller include IP address, subnet mask, default gateway, VLAN settings, and routing protocol configuration. The wireless access point parameters configured include: SSID, frequency band, channel, encryption method, transmit power, wireless mode, client access limit, and MAC address filtering. The controller configures the same number of redundant optical fiber links based on the number of its main optical fiber links, and simultaneously sets the trigger logic of the redundant optical fiber links, so that the controller adaptively switches the redundant optical fiber links in power supply and communication scenarios based on the trigger logic.

2. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The trigger logic of the redundant optical fiber link is expressed as: ； Where: is the trigger judgment value; The main optical fiber link fault judgment value; is the redundant optical fiber link fault determination value; The main optical fiber link failure persists; is a preset fault duration threshold; in, When the redundant optical fiber link is switched, the switching operation is triggered. Otherwise, the switching operation is not triggered. Indicates that all three conditions are met at the same time.

3. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The redundant optical fiber link failure judgment value The calculation logic and main optical fiber link fault judgment value The calculation logic is the same as that of the main optical fiber link fault judgment value The calculation logic is expressed as: ； Where: The judgment value based on optical power detection, the judgment value based on bit error rate detection, the judgment value based on link heartbeat signal detection, and the judgment value based on link packet loss rate detection; is the optical power of the current main optical fiber link; The minimum optical power threshold allowed to maintain normal communication; is the bit error rate of the current main optical fiber link; is the preset maximum allowable bit error rate threshold; Whether the heartbeat signal sent by the other end is received within the specified time; is the packet loss rate during the current transmission of the main optical fiber link; is the preset maximum allowed packet loss rate threshold; in, .

4. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The logic of detecting the optical signal strength and identifying whether the optical signal is within the normal range is expressed as follows: ； Where: is the optical power at the receiving end; is the optical power at the transmitting end; is the number of lossy links in the optical fiber link; is the loss value generated by the i-th link in the optical fiber link; This is the normal range of optical signal intensity; Among them, if formula (2) holds true, it means that the optical signal is within the normal range. When the optical signal is not within the normal range, it switches to the redundant optical fiber link in real time and further performs detection and identification operations. When the redundant optical fiber link is still not within the normal range, it switches to the main optical fiber link corresponding to the redundant optical fiber link. This process is repeated until the identification result is yes.

5. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The controller complies with any one of the IEEE 802.11 standard protocol, the IEEE 802.15.4 standard protocol, and the IEEE 802.16 standard protocol when establishing a connection with the wireless access point; When authenticating the access point, verification is performed through any one of PSK, digital certificate, or user name and password.

6. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: The control instructions include frequency band adjustment instructions, channel selection instructions, SSID configuration instructions, wireless encryption mode and key setting instructions, transmission power adjustment instructions, authentication mode setting instructions, user access number limit instructions, restart instructions, firmware upgrade instructions, and fault diagnosis instructions; The control instructions are transmitted in the form of data packets.

7. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: The determination of whether the wireless access point is abnormal is subject to: ； Where: is the abnormality judgment value of the wireless access point; is the wireless access point signal strength; is the signal strength reference value; It is the reasonable fluctuation range of signal strength; is the packet loss rate of the wireless access point; is the maximum acceptable threshold of the wireless access point packet loss rate; The number of users connected to the wireless access point; The maximum number of users supported by the wireless access point; is the device temperature; is the device temperature reference value; The normal fluctuation range of the device temperature; is the weight; Among them, the weight are all positive numbers, and the weights The sum is 1, Determine that there is no abnormality in the wireless access point. Determine if the wireless access point is abnormal. If the wireless access point is abnormal, switch to the redundant optical fiber link.

8. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: The communication data includes a data packet containing control instructions. During the communication data encryption stage, any existing communication data encryption algorithm is applied to perform encrypted transmission and decrypted reading.

9. A fiber-powered wireless access controller, characterized in that: The controller includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the execution steps of the communication method of the fiber-powered wireless access controller according to any one of claims 1 to 8 are implemented.

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