FTTH access network optical branching resource optimization configuration device and method

Abstract

This invention discloses an optical splitter resource optimization configuration device and method for FTTH access networks, relating to the fields of optoelectronic devices and network equipment manufacturing technology. A safety optimization component is installed on one side of the optical splitter box, and a hollow mounting plate is hinged to one side inside the box. Flame-retardant expansion rubber strips are adhered to the edges of the hollow mounting plate. Wiring auxiliary components are installed on the hollow mounting plate, the optical splitter box, and the flip cover. The invention uses a temperature sensor to monitor the temperature inside the optical splitter box. If a fault or fire occurs on the side of the optical splitter, the system stops working, and the system switches services to the intact side. The aluminum hydroxide powder in the fire extinguishing box decomposes. Through power outage, sealing, and cooling at the fault location, the spread of fire is suppressed, while ensuring that some optical splitters inside the box can still operate normally. This invention rapidly optimizes during faults, reducing losses. Different methods are used for automatic adjustment in low temperature, high temperature, and fire conditions, greatly reducing the probability of equipment damage and extending the equipment's service life.

Description

Technical Field

[0001] This invention relates to the field of optoelectronic devices and network equipment manufacturing technology, specifically to an optical splitter resource optimization configuration device and method for FTTH access networks. Background Technology

[0002] In the development of data centers today, optical splitters are becoming increasingly important as a key component in network communication. They play a core role in distributing and managing optical signals in fiber optic networks, affecting network latency, bandwidth, and stability. Optical splitters are also the most critical equipment for optimizing FTTH access networks.

[0003] The patent application CN202021415600.1 mentions a "dustproof planar waveguide optical splitter." This device uses a flip-up protective plate to shield or open the interface, thus preventing external contaminants from entering. A positioning mechanism positions the plate onto the optical splitter housing. An adjustment mechanism moves a suction cup, which then adheres and positions the optical splitter in a fixed position.

[0004] However, current optical splitters are greatly affected by ambient temperature during use. Both low and high temperatures can affect their normal operation. Furthermore, if the splitter box is installed near heat sources, such as heating equipment or high-power appliances, it may cause the plastic parts of the box to deform, age, or even melt. In extreme cases, it may ignite other flammable materials inside the box. Once a fire occurs, the internal equipment will become unusable, causing network access to stop and resulting in further losses. Summary of the Invention

[0005] This invention provides an optical splitter resource optimization configuration device and method for FTTH access networks, which can effectively solve the problems mentioned in the background art, such as the significant impact of external environmental temperature, the impact of both low and high temperatures on normal operation, and the fact that the splitter box is installed near heat sources, such as heating equipment or high-power appliances, which may cause deformation, aging, or even melting of the plastic parts of the box. In extreme cases, it may ignite other flammable materials inside the box. Once a fire occurs, the internal equipment cannot be used, resulting in the access network stopping and causing further losses.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an FTTH access network optical splitter resource optimization configuration device, comprising an optical splitter box, wherein a security optimization component is installed on one side of the optical splitter box, and the security optimization component includes a flip cover; The optical splitter box is hinged to the edge of a flip cover, and a hollow mounting plate is hinged to one side inside the optical splitter box. A flame-retardant expanding rubber strip is glued to the edge of the hollow mounting plate, and a sealing steel strip is welded to the inner edge of the optical splitter box and the flip cover near the flame-retardant expanding rubber strip. An air inlet pipe is installed through one side of the bottom of the hollow mounting plate, and a return pipe is installed through the other side of the bottom of the hollow mounting plate. Both the air inlet pipe and the return pipe movably pass through the flip cover and are connected to both ends of the water tank. An ultrasonic atomizing plate is installed inside the water tank near the air inlet pipe. An electric heating tube is embedded in the middle of the bottom surface of the water tank. A heat dissipation frame is installed on one side of the water tank, and cooling fans are evenly installed on one side of the heat dissipation frame. Temperature sensors are installed in the middle of the inner side of the optical splitter box and the flip cover. Controllers are installed in the middle of the bottom of the optical splitter box and the flip cover.

[0007] According to the above technical solution, a water supply pipe is symmetrically welded through the top of the water tank, and a pressure relief valve is connected inside the water supply pipe by a thread. A top isolation plate is installed in the middle of the top of the water tank.

[0008] According to the above technical solution, a partition strip is installed at the bottom of the middle part of the hollow mounting plate, and fire extinguishing boxes are evenly and alternately distributed on both sides of the partition strip. A spray hole is opened at the top center of the fire extinguishing box, and a waterproof membrane is bonded inside the spray hole. Heat-conducting copper plates are welded to both sides of the fire extinguishing box. The fire extinguishing box is filled with aluminum hydroxide powder, and the heat-conducting copper plate is attached to the inner walls on both sides of the fire extinguishing box.

[0009] According to the above technical solution, the hollow mounting plate, the optical splitter box, and the flip cover are equipped with wiring auxiliary components, and the wiring auxiliary components include mounting brackets; Mounting brackets are installed at the top center of both sides of the hollow mounting plate. Mounting brackets are equipped with mounting clips inside. Heat dissipation fins are installed on both sides of the mounting brackets. Optical splitters are snapped into the mounting clips. Thermally conductive sleeves are fitted around the optical splitters. Both sides of the hollow mounting plate are equipped with winding plates. The winding plates have winding holes evenly distributed in the middle. A winding rod is installed inside the winding hole by thread. A wire support block is rotatably sleeved in the middle of the winding rod. A wire support groove is provided on the outer side of the wire support block. A limit end plate is welded to the end of the winding rod near the wire support block. A limit screw is installed on the edge of the limit end plate through a screw hole. The two sides of the wire support block are evenly slidably engaged with the limiting slider. One end of the limiting slider is glued with a high-temperature resistant rubber sheet. The two high-temperature resistant rubber sheets located on the same wire support block are respectively connected to the two ends of the limiting roller.

[0010] According to the above technical solution, both the optical splitter box and the bottom of the flip cover are symmetrically provided with wire-passing sliding holes. A wire clamp is installed inside the wire-passing sliding hole, and a semi-circular rubber sheet is glued to the end of the wire clamp and the wire-passing sliding hole that are close to each other.

[0011] According to the above technical solution, the equipment is controlled by a control system, which includes a temperature acquisition unit, a controller, and an execution control unit. The temperature acquisition unit is used to acquire the temperature information of the optical splitter box and the inside of the flip cover in real time, and transmit the acquired signal to the controller; The controller is used to determine the working status inside the optical splitter box based on the temperature information and output control commands. The execution control unit includes an ultrasonic atomizing plate, an electric heating tube, and a cooling fan electrically connected to the controller. It is used to activate the ultrasonic atomizing plate and the cooling fan to cool down when the temperature is higher than a preset threshold, and to activate the electric heating tube to heat when the temperature is lower than the preset threshold. The controller is also used to control the faulty optical splitter to stop working when an abnormal temperature rise is detected, and to switch the service to the other optical splitter to ensure the normal operation of some optical splitters in the optical splitter box.

[0012] According to the above technical solution, the optimization process of optical splitting resources in FTTH access networks is based on a multi-parameter coupled optimization model, and specifically includes the following steps: S1. Construct a comprehensive network utility function to describe the overall optimization objective of the FTTH access network. Its expression is as follows: in, Indicates user coverage utility. This indicates the resource load utility of optical splitters. Indicates network reliability utility. This represents the cost of link loss. Indicates the risk and cost. These are weighting coefficients used to balance various performance indicators during resource optimization. S2. Establish an optical splitting resource load allocation model to achieve reasonable optical splitting configuration for each splitting node. Its expression is: in, Indicates user business needs, Indicates the first The splitting ratio of an optical splitter This represents the target splitting ratio, used to evaluate the degree of matching between the actual splitting configuration and the optimal configuration; S3. Construct a link optical power budget constraint model to ensure the communication quality of each user link. Its expression is: in, This indicates the transmitted optical power of the optical line terminal. Indicates the distance from the optical line terminal to the user. Total link loss, This represents the minimum received optical power threshold of the user-side optical network unit; the total link loss. The expression is: + + in, Indicated to user Fiber optic transmission loss, This indicates the connection loss introduced by the connector in the link. This represents the fusion loss introduced at the fusion splice point in the link. Indicates the first The splitting ratio of each optical splitting node This represents the theoretical spectral loss caused by the spectral ratio. Indicates the first Additional insertion loss of each optical splitter This indicates additional environmental losses caused by temperature changes, device aging, or environmental disturbances. The link optical power budget constraint model is used to constrain the optical splitting resource allocation process to ensure that the splitting ratio configuration and user access relationship meet the optical signal transmission requirements. S4. Establish a load balancing optimization function to reduce the load difference between various branch nodes. Its expression is: in, Indicates node load rate. This represents the average load rate, and resource balance is achieved by minimizing the function. S5. Construct a node effective capacity model under the influence of temperature to describe the impact of environmental factors on the carrying capacity of branch nodes. Its expression is: in, This is a temperature-dependent decay function used to characterize the performance degradation of equipment caused by temperature increases, thereby achieving the coupling of resource scheduling and environmental conditions; S6. Establish a dynamic service path switching model to realize service scheduling between primary and backup optical splitters. Its expression is: + in, Indicates user At any moment The actual business transmission path Indicates user The corresponding primary optical splitter path This indicates the corresponding backup optical splitter path. This is a path selection function used to control the switching between the primary path and the backup path based on node temperature and fault status. S7. Construct a business continuity evaluation index to measure the system's service capability under abnormal conditions. Its expression is: in, Indicates user The amount of business that can be maintained even under abnormal conditions Indicates user The total traffic volume under normal conditions is used to evaluate the system's ability to maintain traffic under fault or high-temperature environments. S8. Establish a user access mapping and resource reconfiguration model to dynamically adjust the connection relationship between users and branch nodes during resource optimization. Its expression is: in, For users, access indicator variables, when users Access the The value is 1 when there is an optical splitter node, and 0 otherwise. Indicates the number of users. Indicates the number of optical splitter nodes, and satisfies the following constraints: Used to ensure the uniqueness of user access and to constrain node capacity; S9. Construct a system risk assessment model to describe the impact of temperature and environmental factors on system safety. Its expression is: in, Indicates the first Temperature parameters of each optical splitter node This indicates the intensity of thermal risk or the degree of potential danger at that node. This represents the risk mitigation factor, which is jointly determined by sealing and isolation capability, fire extinguishing capability, and fault isolation capability, and is calculated as follows: To achieve a quantitative assessment of risks across the entire network; S10. Based on the above model, under the premise of meeting the requirements of optical power constraints, capacity constraints and service continuity, the user access relationship, split ratio configuration and primary / backup path selection are jointly optimized to realize the dynamic optimization configuration of optical splitting resources in the FTTH access network.

[0013] According to the above technical solution, the temperature-related decay function Determined according to the segmentation method: when hour, ;when hour, , in, ,when hour, ,in, Indicates the safe temperature threshold. This represents the critical fault temperature threshold. This represents the temperature attenuation coefficient, used to dynamically adjust the effective capacity of the optical splitter node based on changes in node temperature.

[0014] According to the above technical solution, the path selection function Determined based on node temperature and fault status: When the temperature of the primary optical branch node is below a preset temperature threshold and no fault is detected... User services are carried by the primary optical splitter path; when the temperature of the primary optical splitter node reaches or exceeds a preset temperature threshold, or a fault is detected in the primary optical splitter node, User services are switched to backup optical splitter paths to reduce the load on high-risk nodes and ensure service continuity.

[0015] in, Indicates the first The rated capacity of each optical splitter node Indicates node temperature. This represents a temperature-dependent attenuation function, used to describe the impact of temperature increases on the carrying capacity of optical splitter nodes, thereby achieving coupled control of optical splitter resource scheduling and environmental conditions. According to the above technical solution, when selecting backup optical splitter paths, the controller selects candidate backup optical splitter nodes based on the priority of meeting optical power budget conditions, sufficient effective node capacity, low node risk value, and low node load rate, and migrates the services carried by the faulty or high-risk optical splitter to the backup optical splitter node with the highest priority.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Equipped with safety optimization components, during use, the temperature sensor monitors the temperature inside the optical splitter box. If the temperature inside the box is high, the ultrasonic atomizing sheet atomizes the water and it enters the hollow mounting plate through the air inlet pipe. The heat inside the box is transferred to the heat-conducting copper plate through the hollow mounting plate, and then the water mist carries away the heat to the water in the water tank. Cold air enters from both ends of the heat dissipation frame, carries away the heat from the water tank and then dissipates, reducing the water tank temperature. This cycle continues to reduce the temperature of the optical splitter box until the temperature reaches the safe operating range. When the internal temperature of the optical splitter box becomes too high and causes a fire due to the inability to control it through automatic regulation, the optical splitter on the faulty side stops working. The system will switch the service to the optical splitter on the intact side. The flame-retardant expansion rubber strip expands under high temperature and squeezes the sealing steel strip, completely separating the spaces on both sides of the hollow mounting plate. The aluminum hydroxide powder in the fire extinguishing box decomposes and absorbs heat. While absorbing heat, it sends water vapor back to the water tank through the air inlet pipe and return pipe. Excess water vapor is discharged through the pressure relief valve. This process suppresses the spread of fire by cutting off power, sealing, and cooling at the fault location, and ensures that some optical splitters in the box can still work normally. It quickly optimizes the system in the event of a fault, ensuring that the equipment can still be used in emergency situations and reducing the loss of the fault. If the temperature inside the box is low, the water in the heating tank will evaporate faster due to the heating. The heated water vapor will enter the hollow mounting plate through the air inlet pipe and the return pipe. After contacting the low-temperature heat-conducting copper plate, it will condense into water droplets and return to the water tank through the air inlet pipe and the return pipe, thereby raising the temperature inside the optical splitter box and bringing the temperature to the safe operating range. The system automatically adjusts its operation in different ways under low temperature, high temperature, and fire conditions, greatly reducing the probability of equipment damage and extending the equipment's service life.

[0017] 2. A wiring auxiliary component is provided. The connecting wire passes through the wire support groove of the wire support block and the limiting roller. The connecting wire is held by the elasticity of the high-temperature resistant rubber sheet. The connecting wire finally passes through the wire threading hole to connect to the outside. After the initial wiring is completed, the wire support block is rotated, which makes the elliptical wire support block rotate and changes the curvature of the connecting wire when it passes around the winding rod. This prevents the connecting wire from being damaged due to long-term bending at too small an angle. At the same time, it also makes the gap between the wire bundles smaller, less likely to become tangled, and better protects the connecting wire. Next, insert the wiring clamp plate into the wire-threading hole. The semi-circular rubber sheet squeezes and deforms the wire harness, and seals the gap at the connection to prevent debris from entering the optical splitter box. Rotate the hollow mounting plate until it is parallel to the inside of the optical splitter box, and then rotate the flip cover to close and seal it, thus completing the wiring installation operation. In summary, in the event of a fire inside the optical splitter box, the water vapor in the fire extinguishing chamber of the safety optimization component will be ejected from the pressure relief valve to the wiring guide hole of the wiring auxiliary component, reducing the amount of air entering the box and thus better retardant flames. The mounting bracket and thermal conductive sleeve also work better with the safety optimization component for heat conduction. The two work together to achieve better results, allowing the optical splitter box to better perform its functions and extend its service life. Furthermore, this invention combines a temperature control mechanism with optimized configuration of optical splitter resources in the FTTH access network. Through the synergistic action of temperature sensors, ultrasonic atomization units, electric heating units, and heat dissipation units, it achieves adaptive adjustment of the internal environment of the optical splitter box, maintaining the equipment within a safe operating range under high temperature, low temperature, and abnormal fire conditions. By constructing an optical splitter resource optimization model based on multi-parameter coupling, and combining node temperature status, load status, and fault risk, dynamic assessment of the effective capacity of optical splitter nodes and adaptive switching of service paths are achieved. This enables services carried by optical splitters on the faulty or high-risk side to be promptly migrated to low-risk, low-load backup optical splitter nodes, thereby improving the utilization rate and load balance of optical splitter resources. In addition, through the setting of sealed isolation structures and fire suppression components, rapid isolation and heat absorption suppression can be achieved in the event of a local fire, preventing the spread of fire and ensuring the continuous operation of some optical splitters. This significantly improves the reliability and service continuity of the FTTH access network in complex environments, while effectively reducing the probability of equipment damage and extending the overall service life. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the safety optimization component of the present invention; Figure 3 This is a schematic diagram of the installation structure of the fire extinguishing box of the present invention; Figure 4 This is a schematic diagram of the installation structure of the top isolation plate of the present invention; Figure 5 This is a schematic diagram of the wiring auxiliary component of the present invention; Figure 6 This is a schematic diagram of the installation structure of the winding rod of the present invention; Figure 7 This is the present invention. Figure 6 A schematic diagram of the structure of region A; Figure 8 This is a schematic diagram of the installation structure of the wire clamp plate of the present invention; Figure 9This is a schematic diagram of the method steps of the present invention; Numbered in the diagram: 1. Optical splitter box; 2. Safety Optimization Components; 201. Flip-top cover; 202. Hollow mounting plate; 203. Flame-retardant expansion rubber strip; 204. Sealing steel strip; 205. Air inlet pipe; 206. Return pipe; 207. Water tank; 208. Water supply pipe; 209. Pressure relief valve; 210. Top isolation plate; 211. Ultrasonic atomizing sheet; 212. Electric heating element; 213. Heat sink frame; 214. Cooling fan; 215. Temperature sensor; 216. Controller; 217. Middle partition strip; 218. Fire extinguishing box; 219. Spray nozzle; 220. Waterproof membrane; 221. Thermally conductive copper plate; 3. Wiring auxiliary components; 301. Mounting bracket; 302. Mounting clip; 303. Heat sink fins; 304. Optical splitter; 305. Thermal conductive sleeve; 306. Winding plate; 307. Winding hole; 308. Winding rod; 309. Wire support block; 310. Wire support groove; 311. Limiting end plate; 312. Limiting screw; 313. Limiting slider; 314. High temperature resistant rubber sheet; 315. Limiting roller; 316. Wire threading hole; 317. Wire clamp plate; 318. Semi-circular rubber sheet. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-8 As shown, the present invention provides a technical solution for an optical splitter resource optimization configuration device for an FTTH access network, including an optical splitter box 1. A safety optimization component 2 is installed on one side of the optical splitter box 1. The safety optimization component 2 includes a flip cover 201, a hollow mounting plate 202, a flame-retardant expansion rubber strip 203, a sealing steel strip 204, an air inlet pipe 205, a return pipe 206, a water tank 207, a water supply pipe 208, a pressure relief valve 209, a top isolation plate 210, an ultrasonic atomizing sheet 211, an electric heating tube 212, a heat dissipation frame 213, a heat dissipation fan 214, a temperature sensor 215, a controller 216, a partition strip 217, a fire extinguishing box 218, a spray hole 219, a waterproof membrane 220, and a heat-conducting copper plate 221. A flip cover 201 is hinged to the edge of the optical splitter box 1. A hollow mounting plate 202 is hinged to one side inside the optical splitter box 1. A flame-retardant expansion rubber strip 203 is glued to the edge of the hollow mounting plate 202. A sealing steel strip 204 is welded to the inner edge of the optical splitter box 1 and the flip cover 201 near the flame-retardant expansion rubber strip 203. An air inlet pipe 205 is installed through one side of the bottom end of the hollow mounting plate 202, and a return pipe 206 is installed through the other side of the bottom end of the hollow mounting plate 202. Both the air inlet pipe 205 and the return pipe 206 movably pass through the flip cover 201 and are connected to both ends of the water tank 207. A water supply pipe 208 is symmetrically welded through the top surface of the water tank 207. A pressure relief valve 209 is threadedly connected inside the water supply pipe 208. A top isolation plate 210 is installed in the middle of the top of the water tank 207, which allows the air inlet pipe to pass through. 205 is not directly connected to the return pipe 206 to facilitate internal gas circulation. An ultrasonic atomizing plate 211 is installed inside the water tank 207 near the air inlet pipe 205. An electric heating tube 212 is embedded in the center of the bottom surface of the water tank 207. A heat dissipation frame 213 is installed on one side of the water tank 207. The heat dissipation frame 213 is a copper tube with open ends. One side of the heat dissipation frame 213 is embedded in the side of the water tank 207 to improve heat dissipation. Cooling fans 214 are evenly installed on one side of the heat dissipation frame 213. (Optical splitter box) Temperature sensors 215 are installed in the center of the inner side of both the optical splitter box 1 and the flip cover 201. Controllers 216 are installed in the center of the bottom of both the optical splitter box 1 and the flip cover 201. The output terminal of the temperature sensor 215 is electrically connected to the input terminal of the controller 216. The ultrasonic atomizing plate 211, the electric heating tube 212, and the cooling fan 214 are electrically connected to the output terminal of the external power supply to ensure the normal operation of the temperature sensor 215, the ultrasonic atomizing plate 211, the electric heating tube 212, and the cooling fan 214. The hollow mounting plate 202 has a partition strip 217 installed at the bottom center. Fire extinguishing boxes 218 are evenly and alternately distributed on both sides of the partition strip 217. The top center of the fire extinguishing box 218 has a spray hole 219. A waterproof membrane 220 is bonded inside the spray hole 219. Heat-conducting copper plates 221 are welded to both sides of the fire extinguishing box 218. The fire extinguishing box 218 is filled with aluminum hydroxide powder. The heat-conducting copper plates 221 are attached to the inner walls of both sides of the fire extinguishing box 218 to ensure the fire extinguishing performance of the fire extinguishing box 218.

[0022] The hollow mounting plate 202, the optical splitter box 1, and the flip cover 201 are equipped with wiring auxiliary components 3. The wiring auxiliary components 3 include mounting bracket 301, mounting clip 302, heat dissipation fins 303, optical splitter 304, heat-conducting sleeve 305, winding plate 306, winding hole 307, winding rod 308, wire support block 309, wire support groove 310, limiting end plate 311, limiting screw 312, limiting slider 313, high temperature resistant rubber sheet 314, limiting clamping roller 315, wire threading sliding hole 316, wire clamp plate 317, and semi-circular rubber sheet 318. A mounting bracket 301 is installed at the top center of both sides of the hollow mounting plate 202. The mounting bracket 301 is equipped with a mounting clip 302 inside. Heat dissipation fins 303 are installed on both sides of the mounting bracket 301. An optical splitter 304 is snapped into the mounting clip 302. A heat-conducting sleeve 305 is sleeved on the outside of the optical splitter 304. Both sides of the hollow mounting plate 202 are equipped with winding plates 306. The winding plates 306 have winding holes 307 evenly opened in the middle. The winding rods 308 are installed inside the winding holes 307 by threads. The winding rods 308 are rotatably sleeved with wire support blocks 309 in the middle. The wire support blocks 309 have wire support grooves 310 on the outer side. A limit end plate 311 is welded to one end of the winding rods 308 near the wire support blocks 309. The edge of the limit end plate 311 is equipped with limit screws 312 through screw holes. The wire support block 309 has a limit slider 313 that slides evenly on both sides of its edge. A high-temperature resistant rubber sheet 314 is attached to one end of the limit slider 313. Two high-temperature resistant rubber sheets 314 located on the same wire support block 309 are respectively connected to the two ends of the limit roller 315. The bottom ends of the optical splitter box 1 and the flip cover 201 are symmetrically provided with wire threading holes 316. A wire clamp 317 is installed inside the wire threading hole 316. A semi-circular rubber sheet 318 is attached to the end of the wire clamp 317 and the wire threading hole 316 that are close to each other to prevent external dust from entering the box.

[0023] like Figure 9 As shown, a method for optimizing the configuration of optical splitter resources in an FTTH access network is presented. The optimization process for optical splitter resources in an FTTH access network is based on a multi-parameter coupled optimization model and specifically includes the following steps: S1. Construct a comprehensive network utility function to describe the overall optimization objective of the FTTH access network. Its expression is as follows: in, Indicates user coverage utility. This indicates the resource load utility of optical splitters. Indicates network reliability utility. This represents the cost of link loss. Indicates the risk and cost. These are weighting coefficients used to balance various performance indicators during resource optimization. S2. Establish an optical splitting resource load allocation model to achieve reasonable optical splitting configuration for each splitting node. Its expression is: in, Indicates user business needs, Indicates the first The splitting ratio of an optical splitter This represents the target splitting ratio, used to evaluate the degree of matching between the actual splitting configuration and the optimal configuration; S3. Construct a link optical power budget constraint model to ensure the communication quality of each user link. Its expression is: in, This indicates the transmitted optical power of the optical line terminal. Indicates the distance from the optical line terminal to the user. Total link loss, This represents the minimum received optical power threshold of the user-side optical network unit; total link loss. The expression is: + + in, Indicated to user Fiber optic transmission loss, This indicates the connection loss introduced by the connector in the link. This represents the fusion loss introduced at the fusion splice point in the link. Indicates the first The splitting ratio of each optical splitting node This represents the theoretical spectral loss caused by the spectral ratio. Indicates the first Additional insertion loss of each optical splitter This indicates additional environmental losses caused by temperature changes, device aging, or environmental disturbances. The link optical power budget constraint model is used to constrain the optical splitting resource allocation process to ensure that the splitting ratio configuration and user access relationship meet the optical signal transmission requirements. S4. Establish a load balancing optimization function to reduce the load difference between various branch nodes. Its expression is: in, Indicates node load rate. This represents the average load rate, and resource allocation is achieved through a minimization function. S5. Construct a node effective capacity model under the influence of temperature to describe the impact of environmental factors on the carrying capacity of branch nodes. Its expression is: in, This is a temperature-dependent decay function used to characterize the performance degradation of equipment caused by temperature increases, thereby achieving the coupling of resource scheduling and environmental conditions; S6. Establish a dynamic service path switching model to realize service scheduling between primary and backup optical splitters. Its expression is: + in, Indicates user At any moment The actual business transmission path Indicates user The corresponding primary optical splitter path This indicates the corresponding backup optical splitter path. This is a path selection function used to control the switching between the primary path and the backup path based on node temperature and fault status. S7. Construct a business continuity evaluation index to measure the system's service capability under abnormal conditions. Its expression is: in, Indicates user The amount of business that can be maintained even under abnormal conditions Indicates user The total traffic volume under normal conditions is used to evaluate the system's ability to maintain service under fault or high-temperature environments. S8. Establish a user access mapping and resource reconfiguration model to dynamically adjust the connection relationship between users and branch nodes during resource optimization. Its expression is: in, For users, access indicator variables, when users Access the The value is 1 when there is an optical splitter node, and 0 otherwise. Indicates the number of users. Indicates the number of optical splitter nodes, and satisfies the following constraints: Used to ensure the uniqueness of user access and to constrain node capacity; S9. Construct a system risk assessment model to describe the impact of temperature and environmental factors on system safety. Its expression is: in, Indicates the first Temperature parameters of each optical splitter node This indicates the intensity of thermal risk or the degree of potential danger at that node. This represents the risk mitigation factor, which is jointly determined by sealing and isolation capability, fire extinguishing capability, and fault isolation capability, and is calculated as follows: To achieve a quantitative assessment of risks across the entire network; S10. Based on the above model, under the premise of meeting the requirements of optical power constraints, capacity constraints and service continuity, the user access relationship, split ratio configuration and primary / backup path selection are jointly optimized to realize the dynamic optimization configuration of optical splitting resources in the FTTH access network.

[0024] Furthermore, the temperature-dependent decay function Determined according to the segmentation method: when hour, ;when hour, , in, ,when hour, ,in, Indicates the safe temperature threshold. This represents the critical fault temperature threshold. This represents the temperature attenuation coefficient, used to dynamically adjust the effective capacity of the optical splitter node based on changes in node temperature.

[0025] Furthermore, path selection function Determined based on node temperature and fault status: When the temperature of the primary optical branch node is below a preset temperature threshold and no fault is detected... User services are carried by the primary optical splitter path; when the temperature of the primary optical splitter node reaches or exceeds a preset temperature threshold, or a fault is detected in the primary optical splitter node, User services are switched to backup optical splitter paths to reduce the load on high-risk nodes and ensure service continuity.

[0026] in, Indicates the first The rated capacity of each optical splitter node Indicates node temperature. This represents a temperature-dependent attenuation function, used to describe the impact of temperature increases on the carrying capacity of optical splitter nodes, thereby achieving coupled control of optical splitter resource scheduling and environmental conditions. Furthermore, when selecting backup optical splitter paths, the controller prioritizes candidate backup optical splitter nodes based on factors such as optical power budget satisfaction, sufficient effective node capacity, low node risk value, and low node load rate. Services carried by the faulty or high-risk optical splitter are then migrated to the backup optical splitter node with the highest priority.

[0027] The working principle and usage process of this invention are as follows: After the outer side of the optical splitter 304 is fitted with a thermally conductive sleeve 305, it is installed in the mounting clip 302 of the mounting bracket 301. The thermally conductive sleeve 305 is made of aluminum alloy with good thermal conductivity. Then, the wiring operation is performed. During wiring, one side of the hollow mounting plate 202 is the main path and the other side is the backup path. Under normal circumstances, the service is only transmitted on the main path. The backup path is idle or can carry low-priority additional services. When the main path fails, the system will switch the service to the backup path. Through the redundancy design, it is also convenient to ensure normal functioning in a short time when subsequent failures occur. After the wiring is completed, according to the number and location of the connected wires, a winding rod 308 is installed in the winding hole 307 of the winding plate 306. The connecting wire passes between the wire support groove 310 of the wire support block 309 and the limiting roller 315. The connecting wire is held by the elasticity of the high-temperature resistant rubber sheet 314. The connecting wire finally passes through the wire threading hole 316 to connect to the outside. After the initial wiring is completed, the wire support block 309 is rotated, causing the elliptical wire support block 309 to rotate. The limiting screw 312 is tightened to fix the wire support block 309, changing the way the connecting wire passes around the winding plate 306. The curvature of the pole 308 is designed to prevent damage to the connecting wires due to excessively small bending angles over a long period. It also reduces the gaps between the wire harnesses, making them less prone to tangling and better protecting the connecting wires. Next, the wiring clamp 317 is inserted into the wire threading hole 316. The semi-circular rubber sheet 318 deforms the wire harness and seals the gap at the connection point to prevent debris from entering the optical splitter box 1. The hollow mounting plate 202 is rotated until it is parallel to the inside of the optical splitter box 1. Then, the flip cover 201 is rotated to close the seal, completing the wiring installation operation. Before using the equipment, remove the pressure relief valve 209 from the water supply pipe 208 via the thread. Pour distilled water into the water tank 207 and install the pressure relief valve 209, placing it near the wire threading hole 316. During use, the temperature sensor 215 monitors the temperature inside the optical splitter box 1. If the temperature inside the box is high, the ultrasonic atomizing plate 211 is activated. The ultrasonic atomizing plate 211 atomizes the water, which then enters the hollow mounting plate 202 through the air inlet pipe 205. The water mist contacts the heat-conducting copper plate 221 and spreads along the alternating... The fire extinguishing box 218 of the cloth flows in a curved manner, then passes over the top isolation plate 210, and finally flows back to the return pipe 206 and enters the water tank 207. During this process, the heat inside the box is transferred to the heat-conducting copper plate 221 through the hollow mounting plate 202, and then the heat is carried away by the water mist to the water in the water tank 207. The cooling fan 214 is activated, and cold air enters from both ends of the heat dissipation frame 213, carries away the heat in the water tank 207 and then dissipates, reducing the temperature of the water tank 207. This cycle continues to reduce the temperature of the optical splitter box 1 until the temperature reaches the safe operating range. If the temperature inside the box is low, the controller 216 turns on the power supply of the electric heating tube 212 to heat the water in the water tank 207. The water in the water tank 207 evaporates faster due to heating. The heated water vapor enters the hollow mounting plate 202 through the air inlet pipe 205 and the return pipe 206. After contacting the low-temperature heat-conducting copper plate 221, it condenses into water droplets and returns to the water tank 207 through the air inlet pipe 205 and the return pipe 206, thereby raising the temperature inside the optical splitter box 1 to a safe operating range. When the internal temperature of the optical splitter box 1 becomes too high and causes a fire due to the inability to control it through automatic regulation, the optical splitter 304 on the faulty side stops working. The system will switch the service to the optical splitter 304 on the intact side. The flame-retardant expansion rubber strip 203 expands under high temperature and squeezes the sealing steel strip 204, completely separating the spaces on both sides of the hollow mounting plate 202. As the temperature continues to rise, the aluminum hydroxide powder in the fire extinguishing box 218 decomposes and absorbs heat. The water vapor produced by the decomposition will break through the waterproof membrane 220. While absorbing heat, the water vapor is sent back to the water tank 207 through the air inlet pipe 205 and the return pipe 206. The air pressure in the water tank 207 increases, and the excess water vapor is discharged through the pressure relief valve 209. This process suppresses the spread of fire by cutting off power, sealing, and cooling at the fault location, and ensures that some optical splitters 304 in the box can still work normally. It quickly optimizes the system in the event of a fault, ensuring that the equipment can still be used in an emergency and reducing the loss from the fault.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An FTTH access network optical branching resource optimization configuration device, comprising an optical branching box (1), characterized in that: A safety optimization component (2) is installed on one side of the optical splitter box (1), and the safety optimization component (2) includes a flip cover (201). The optical splitter box (1) is hinged to the edge of a flip cover (201), and a hollow mounting plate (202) is hinged to one side inside the optical splitter box (1). A flame-retardant expanding rubber strip (203) is glued to the edge of the hollow mounting plate (202), and a sealing steel strip (204) is welded to the inner edge of the optical splitter box (1) and the flip cover (201) near the flame-retardant expanding rubber strip (203). An air inlet pipe (205) is installed through one side of the bottom end of the hollow mounting plate (202), and a return pipe (206) is installed through the other side of the bottom end of the hollow mounting plate (202). The air inlet pipe (205) and the return pipe (206) both movably pass through the flip cover (201) and are connected to both ends of the water tank (207). An ultrasonic atomizing plate (211) is installed inside the water tank (207) near the side of the air inlet pipe (205). An electric heating tube (212) is embedded in the middle of the bottom surface of the water tank (207). A heat dissipation frame (213) is installed on one side of the water tank (207). A heat dissipation fan (214) is evenly installed on one side of the heat dissipation frame (213). A temperature sensor (215) is installed in the middle of the inner side of the optical splitter box (1) and the flip cover (201). A controller (216) is installed in the middle of the bottom end of the optical splitter box (1) and the flip cover (201).

2. The FTTH access network optical branch resource optimal configuration device according to claim 1, characterized in that, The water tank (207) has a water supply pipe (208) symmetrically welded through its top surface. The water supply pipe (208) is connected to a pressure relief valve (209) via a thread. The water tank (207) has a top isolation plate (210) installed in the middle of its top.

3. The FTTH access network optical branch resource optimal configuration device according to claim 1, characterized in that, A partition strip (217) is installed at the bottom center of the hollow mounting plate (202). Fire extinguishing boxes (218) are evenly and alternately distributed on both sides of the partition strip (217). A spray hole (219) is opened at the top center of the fire extinguishing box (218). A waterproof membrane (220) is bonded inside the spray hole (219). Heat-conducting copper plates (221) are welded to both sides of the fire extinguishing box (218). The fire extinguishing box (218) is filled with aluminum hydroxide powder, and the heat-conducting copper plate (221) is attached to the inner walls of both sides of the fire extinguishing box (218).

4. The FTTH access network optical branch resource optimal configuration device according to claim 1, characterized in that, The hollow mounting plate (202), the optical splitter box (1) and the flip cover (201) are equipped with a wiring auxiliary assembly (3), which includes a mounting bracket (301). The hollow mounting plate (202) has mounting brackets (301) installed at the top center of both sides. The mounting brackets (301) have mounting clips (302) inside. Heat dissipation fins (303) are installed on both sides of the mounting brackets (301). An optical splitter (304) is snapped into the mounting clips (302). A heat-conducting sleeve (305) is sleeved on the outside of the optical splitter (304). The hollow mounting plate (202) has a winding plate (306) installed at both bottom ends. The winding plate (306) has winding holes (307) evenly distributed in the middle. The winding rod (308) is installed inside the winding hole (307) by thread. The winding rod (308) is rotatably sleeved with a wire support block (309) in the middle. The wire support block (309) has a wire support groove (310) on the outside. A limit end plate (311) is welded to one end of the winding rod (308) near the wire support block (309). The edge of the limit end plate (311) is fitted with a limit screw (312) through a screw hole. The two sides of the wire support block (309) are evenly slidably engaged with the limiting slider (313). One end of the limiting slider (313) is bonded with a high-temperature resistant rubber sheet (314). The two high-temperature resistant rubber sheets (314) located on the same wire support block (309) are respectively connected to the two ends of the limiting roller (315).

5. The FTTH access network optical branch resource optimal configuration device according to claim 4, characterized in that, The bottom ends of the optical splitter box (1) and the flip cover (201) are symmetrically provided with wire-passing sliding holes (316). A wire clamp plate (317) is snapped into the wire-passing sliding hole (316). A semi-circular rubber sheet (318) is glued to the end of the wire clamp plate (317) and the wire-passing sliding hole (316) that are close to each other.

6. The FTTH access network optical splitter resource optimization and configuration device according to claim 1, characterized in that, The equipment is controlled by a control system, which includes a temperature acquisition unit, a controller, and an execution control unit. The temperature acquisition unit is used to acquire the temperature information inside the optical splitter box (1) and the flip cover (201) in real time, and transmit the acquired signal to the controller (216). The controller (216) is used to determine the working status of the optical splitter box (1) based on the temperature information and output control commands; The execution control unit includes an ultrasonic atomizing plate (211), an electric heating tube (212), and a cooling fan (214) electrically connected to the controller (216). It is used to activate the ultrasonic atomizing plate (211) and the cooling fan (214) to cool down when the temperature is higher than a preset threshold, and to activate the electric heating tube (212) to heat up when the temperature is lower than the preset threshold. The controller (216) is also used to control the faulty optical splitter (304) to stop working when an abnormal temperature rise is detected, and to switch the service to the other optical splitter (304) to ensure the normal operation of the optical splitter (304) inside the optical splitter box (1).

7. A method for optimizing the configuration of optical splitter resources in an FTTH access network, comprising the configuration method of an FTTH access network optical splitter resource optimization configuration device according to claim 6, characterized in that, The optimization process for optical splitter resources in FTTH access networks is based on a multi-parameter coupled optimization model, and specifically includes the following steps: S1. Construct a network comprehensive utility function to describe the overall optimization objective of the FTTH access network. Its expression is as follows: in, Indicates user coverage utility. This indicates the resource load utility of optical splitters. Indicates network reliability utility. This represents the cost of link loss. Indicates the risk and cost. These are weighting coefficients used to balance various performance indicators during resource optimization. S2. Establish an optical splitting resource load allocation model to achieve reasonable optical splitting configuration for each splitting node. Its expression is: in, Indicates user business needs, Indicates the first The splitting ratio of an optical splitter This represents the target splitting ratio, used to evaluate the degree of matching between the actual splitting configuration and the optimal configuration; S3. Construct a link optical power budget constraint model to ensure the communication quality of each user link. Its expression is: in, This indicates the transmitted optical power of the optical line terminal. Indicates the distance from the optical line terminal to the user. Total link loss, This represents the minimum received optical power threshold of the user-side optical network unit; the total link loss. The expression is: + + in, Indicated to user Fiber optic transmission loss, This indicates the connection loss introduced by the connector in the link. This represents the fusion loss introduced at the fusion splice point in the link. Indicates the first The splitting ratio of each optical splitting node This represents the theoretical spectral loss caused by the spectral ratio. Indicates the first Additional insertion loss of each optical splitter This indicates additional environmental losses caused by temperature changes, device aging, or environmental disturbances. The link optical power budget constraint model is used to constrain the optical splitting resource allocation process to ensure that the splitting ratio configuration and user access relationship meet the optical signal transmission requirements. S4. Establish a load balancing optimization function to reduce the load difference between various branch nodes. Its expression is: in, Indicates node load rate. This represents the average load rate, and resource balance is achieved by minimizing the function. S5. Construct a node effective capacity model under the influence of temperature to describe the impact of environmental factors on the carrying capacity of branch nodes. Its expression is: in, This is a temperature-dependent decay function used to characterize the performance degradation of equipment caused by temperature increases, thereby achieving the coupling of resource scheduling and environmental conditions; S6. Establish a dynamic service path switching model to realize service scheduling between primary and backup optical splitters. Its expression is: + in, Indicates user At any moment The actual business transmission path Indicates user The corresponding primary optical splitter path This indicates the corresponding backup optical splitter path. This is a path selection function used to control the switching between the primary path and the backup path based on node temperature and fault status. S7. Construct a business continuity evaluation index to measure the system's service capability under abnormal conditions. Its expression is: in, Indicates user The amount of business that can be maintained even under abnormal conditions Indicates user The total traffic volume under normal conditions is used to evaluate the system's ability to maintain traffic under fault or high-temperature environments. S8. Establish a user access mapping and resource reconfiguration model to dynamically adjust the connection relationship between users and branch nodes during resource optimization. Its expression is: in, For users, access indicator variables, when users Access the The value is 1 when there is an optical splitter node, and 0 otherwise. Indicates the number of users. Indicates the number of optical splitter nodes, and satisfies the following constraints: Used to ensure the uniqueness of user access and to constrain node capacity; S9. Construct a system risk assessment model to describe the impact of temperature and environmental factors on system safety. Its expression is: in, Indicates the first Temperature parameters of each optical splitter node This indicates the intensity of thermal risk or the degree of potential danger at that node. This represents the risk mitigation factor, which is jointly determined by sealing and isolation capability, fire extinguishing capability, and fault isolation capability, and is calculated as follows: To achieve a quantitative assessment of risks across the entire network; S10. Based on the above model, under the premise of meeting the requirements of optical power constraints, capacity constraints and service continuity, the user access relationship, split ratio configuration and primary / backup path selection are jointly optimized to realize the dynamic optimization configuration of optical splitting resources in the FTTH access network.

8. A method for optimizing the allocation of optical splitter resources in an FTTH access network according to claim 7, characterized in that, The temperature-related decay function Determined according to the segmentation method: when hour, ;when hour, , in, ,when, hour, ,in, Indicates the safe temperature threshold. This represents the critical fault temperature threshold. This represents the temperature attenuation coefficient, used to dynamically adjust the effective capacity of the optical splitter node based on changes in node temperature.

9. A method for optimizing the allocation of optical splitter resources in an FTTH access network according to claim 7, characterized in that, The path selection function Determined based on node temperature and fault status: When the temperature of the primary optical branch node is below a preset temperature threshold and no fault is detected... User services are carried by the primary optical splitter path; When the temperature of the primary optical splitter node reaches or exceeds a preset temperature threshold, or when a fault is detected in the primary optical splitter node, User services are switched to backup optical splitter paths to reduce the load on high-risk nodes and ensure service continuity. in, Indicates the first The rated capacity of each optical splitter node Indicates node temperature. This represents a temperature-dependent attenuation function, used to describe the impact of temperature rise on the carrying capacity of optical splitter nodes, thereby achieving coupled control of optical splitter resource scheduling and environmental conditions.

10. A method for optimizing the allocation of optical splitter resources in an FTTH access network according to claim 7, characterized in that, When selecting backup optical splitter paths, the controller prioritizes candidate backup optical splitter nodes based on factors such as optical power budget satisfaction, sufficient effective node capacity, low node risk value, and low node load rate. It then migrates services carried by the faulty or high-risk optical splitter to the backup optical splitter node with the highest priority.

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