Optical fiber power supply wireless access controller and communication method thereof

Abstract

The invention relates to the technical field of wireless communication, in particular to an optical fiber power supply wireless access controller and a communication method thereof, and the communication method comprises the following steps: connecting the optical fiber power supply wireless access controller with an optical fiber network, connecting a wireless access point with the controller in a wired or wireless mode, synchronously configuring network parameters on the controller, relevant parameters of the wireless access point are set; the controller detects the optical signal intensity through the optical fiber interface, identifies whether the optical signal is in a normal range, synchronously checks whether the optical fiber connection is correct and whether the optical module is normal if the signal intensity is insufficient, and carries out handshake with an optical line terminal in an optical fiber network and establishes a communication link if the check result is yes; according to the invention, by initializing configuration equipment parameters and a connection mode, coordination work of each part can be ensured, subsequent faults caused by confusion of configuration are reduced, a stable and high-speed data transmission channel is established and guaranteed based on an optical fiber link, and a large amount of data can be effectively borne by using a mature optical fiber protocol.

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] The fiber-powered wireless access controller is a key device in the modern network field. It cleverly integrates fiber-powered and wireless access control functions. On the one hand, it uses optical fiber to transmit power, without laying additional power lines, which is convenient and conducive to expansion and deployment; on the other hand, it can centrally manage many wireless access points, flexibly configure wireless network parameters, and accurately control user access permissions.

[0003] At the same time, with the high-speed and stable data transmission capabilities of optical fiber, smooth communication can be 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] At present, fiber-powered wireless access controllers usually do not have redundant fiber-optic links at the communication level. Although this setting effectively reduces communication costs and deployment complexity, its operating stability is limited and it usually cannot provide long-term and stable services 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 of 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 by wire 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 to identify whether the optical signal is within the normal range. If the signal strength is insufficient, synchronously check whether the optical fiber connection is correct and whether the optical module is normal. If the check result is yes, shake 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 a control instruction to the wireless access point, and the wireless access point transmits the user data to the controller, and the controller forwards the data to the core network at the same time; 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; in 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, routing protocol configuration, and the wireless access point related parameters set include: SSID, frequency band, channel, encryption method, transmission power, wireless mode, client access quantity limit, 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 synchronously 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 trigger 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 determination 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) indicate 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 a judgment value based on optical power detection, a judgment value based on bit error rate detection, a judgment value based on link heartbeat signal detection, and a 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 a preset maximum allowable 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 of the optical signal intensity detection and identification of whether the optical signal is within the normal range is expressed as:

[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, formula (2) is established, indicating that the optical signal is within the normal range. When the optical signal is not within the normal range, it is switched to the redundant optical fiber link in real time to further perform detection and identification operations. When the redundant optical fiber link is still not within the normal range, it is switched to the main optical fiber link corresponding to the redundant optical fiber link, and this 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 the access point is authenticated, the authentication is performed through 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, transmission power adjustment instructions, authentication mode setting instructions, user access quantity restriction 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 abnormal 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 packet loss rate of the wireless access point; 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 equipment temperature reference value; T range is the normal fluctuation range of the equipment temperature; ω1, ω2, ω3, ω4 are weights;

[0031] Among them, weights ω1, ω2, ω3, and ω4 are all positive numbers, and the sum of weights ω1, ω2, ω3, and ω4 is 1. If AI≤1.5, it is determined that there is no abnormality in the wireless access point. If AI>1.5, it is determined that the wireless access point is abnormal. When the wireless access point is abnormal, switch to the redundant optical fiber link.

[0032] Furthermore, the communication data includes a data packet containing a control instruction, and in 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 execution steps of the communication method of the fiber-powered wireless access controller are implemented.

[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 an optical fiber-powered wireless access controller. During the execution of the method, the method can ensure the coordinated work of various parts by initializing the configuration of equipment parameters and connection modes, reduce subsequent failures caused by configuration confusion, and establish a stable and high-speed data transmission channel based on an optical fiber link. It can also effectively carry a large amount of data by using a mature optical fiber protocol, thereby facilitating long-distance communication, communication with a wireless access point and data transmission. At the same time, the method 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 timely discover and respond to problems, thereby improving the reliability of the overall network. An encryption mechanism is also provided to effectively resist external threats and protect data and network security. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A flow chart of a communication method for a wireless access controller powered by optical fiber. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Embodiment 1:

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

[0042] Connect the fiber-powered wireless access controller to the fiber network, connect the wireless access point to the controller by wired or wireless means, synchronously configure the network parameters on the controller, and set the relevant parameters of the wireless access point;

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

[0044] The controller configures the same number of redundant optical fiber links based on the number of its main optical fiber links, and synchronously 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;

[0045] The trigger logic of the redundant 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 determination 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 failure 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 a judgment value based on optical power detection, a judgment value based on bit error rate detection, a judgment value based on link heartbeat signal detection, and a 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 a preset maximum allowable 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 identifies 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 of optical signal strength detection and identification of whether the optical signal is within the normal range is expressed as:

[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] Wherein, 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] Through the above logic formula, the logic of optical signal intensity detection and identification of whether the optical signal is within the normal range is limited to ensure 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 abnormal 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 packet loss rate of the wireless access point; 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 equipment temperature reference value; T range is the normal fluctuation range of the equipment temperature; ω1, ω2, ω3, ω4 are weights;

[0066] Among them, weights ω1, ω2, ω3, and ω4 are all positive numbers, and the sum of weights ω1, ω2, ω3, and ω4 is 1. If AI ≤ 1.5, it is determined that the wireless access point is normal, and if AI > 1.5, it is determined that the wireless access point is abnormal. When the wireless access point is abnormal, switch to the redundant optical fiber link;

[0067] Through the above logic formula, it is determined 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, the initialization configuration allows the devices to coordinate their work to reduce failures. The establishment of a fiber optic link can provide a stable and high-speed data transmission channel that is beneficial to long-distance communication, and enables centralized management and efficient interaction of wireless access point communication and data transmission. Status monitoring can respond to problems in a timely manner, and communication security can resist external threats, laying the foundation for stable network operation.

[0070] Embodiment 2:

[0071] At the specific 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 protocol, the IEEE 802.15.4 standard protocol, and the IEEE 802.16 standard protocol;

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

[0074] The control instructions include frequency band adjustment instructions, channel selection instructions, SSID configuration instructions, wireless encryption method and key setting instructions, transmission power adjustment instructions, authentication method setting instructions, user access quantity 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] Embodiment 3:

[0079] At the specific 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 comprises 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 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 is possible to ensure the coordinated work of various parts, reduce subsequent failures caused by configuration confusion, and establish a stable and high-speed data transmission channel based on the optical fiber link. It also uses mature optical fiber protocols to effectively carry large amounts of data, which is beneficial for long-distance communication, communication with wireless access points and data transmission. At the same time, centralized management of wireless networks and efficient data interaction facilitate flexible adjustment of wireless parameters and forwarding of user data. Status monitoring and feedback can detect and respond to problems in a timely manner, improve the reliability of the overall network, and are equipped with encryption mechanisms 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 the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such 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 embodiments of the present invention.

Claims

1. A communication method for a fiber-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 by 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 optical fiber interface and identifies 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 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 in real time based on the status information of the wireless access point; During the communication phase, the communication data is encrypted and transmitted; The controller is an AC and AP device. When the controller is connected to an access point by wire, power is supplied and communication is performed through optical fiber.

2. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The network parameters configured on the controller include IP address, subnet mask, default gateway, VLAN settings, routing protocol configuration, and the wireless access point related parameters set include: SSID, frequency band, channel, encryption method, transmission power, wireless mode, client access quantity 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 synchronously 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.

3. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: The trigger logic of the redundant optical fiber link is expressed as: 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; 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) indicate that the three conditions are met at the same time.

4. The communication method of the fiber-optic powered wireless access controller according to claim 1, characterized in that: The redundant optical fiber link failure determination 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: Where: F(1) main 、F(2) main 、F(3)、 main F(4) main is a judgment value based on optical power detection, a judgment value based on bit error rate detection, a judgment value based on link heartbeat signal detection, and a 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 a preset maximum allowable bit error rate threshold; H receive Whether the heartbeat signal sent by the other end is received within the specified time; PLR is the packet loss rate during the current transmission of the main optical fiber link; PLR max is a preset maximum allowable packet loss rate threshold; Among them, F main =F(1) main +F(2) main +F(3)+ main F(4) main .

5. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: The logic of the optical signal intensity detection and identification of whether the optical signal is within the normal range is expressed as follows: 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; Among them, formula (2) is established, indicating that the optical signal is within the normal range. When the optical signal is not within the normal range, it is switched to the redundant optical fiber link in real time to further perform detection and identification operations. When the redundant optical fiber link is still not within the normal range, it is switched to the main optical fiber link corresponding to the redundant optical fiber link, and this is repeated until the identification result is yes.

6. The communication method of the fiber-powered wireless access controller according to claim 1, characterized in that: When the controller establishes a connection with the wireless access point, it 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 the access point is authenticated, the authentication is performed through any one of PSK, digital certificate or user name and password.

7. The communication method of the fiber-optic 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 quantity limit instructions, restart instructions, firmware upgrade instructions, and fault diagnosis instructions; The control instructions are transmitted in the form of data packets.

8. The communication method of the fiber-optic 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: AI is the abnormal 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 equipment temperature reference value; T range is the normal fluctuation range of the equipment temperature; ω1, ω2, ω3, ω4 are weights; Among them, weights ω1, ω2, ω3, and ω4 are all positive numbers, and the sum of weights ω1, ω2, ω3, and ω4 is 1. If AI≤1.5, it is determined that there is no abnormality in the wireless access point. If AI>1.5, it is determined that the wireless access point is abnormal. When the wireless access point is abnormal, switch to the redundant optical fiber link.

9. The communication method of the fiber-optic 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.

10. 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 as described in any one of claims 1 to 9 are implemented.

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