A single-port desktop OLT device
By using FPGA chips for functional integration in OLT devices and equipping them with cooling fans and dustproof components, the problems of high energy consumption, large size, and poor heat dissipation of the devices have been solved, achieving miniaturization and stable operation of the devices.
Patent Information
- Application Number
- CN202423241484.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The low integration of internal modules in existing OLT equipment leads to problems such as high energy consumption, large size, and poor heat dissipation.
The system utilizes FPGA chips for functional replacement and integration, combined with heat dissipation devices and dustproof designs, including ventilation fans and removable filters, to optimize the layout of internal components.
It reduces equipment size and energy consumption, improves heat dissipation and equipment stability, and ensures smooth and reliable equipment operation.
Smart Images
Figure CN223599966U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to communication technical field, especially relate to a single -mouth desktop type OLT device. BACKGROUND
[0002] OLT device is important local end equipment, can be connected with the front end (converged layer) switch with network cable, transforms into optical signal, and is interconnected with the splitter of user end with single optical fiber, can realize the control, management, ranging etc.
[0003] The common OLT device on the market usually has relatively large volume and complex structure These traditional OLT devices are generally composed of multiple large modules, including but not limited to main control board, power module, special function integrated circuit, system control module, hardware acceleration module and the like, the integration degree of internal functional modules is relatively low, and numerous functional modules are dispersedly arranged, which not only makes the circuit board of the device large in size and occupies a large amount of space resources, but also due to the large number of functional modules, each module will consume certain energy in the running process, thereby leading to high power consumption of the OLT device as a whole, high power consumption not only increases energy cost, but also may cause problems such as heat dissipation, affecting the stability and reliability of the device. UTILITY MODEL CONTENTS
[0004] The utility model intends to provide a single -mouth desktop type OLT device, and is mainly used for solving the problems of high energy consumption, large size and poor heat dissipation effect caused by low internal module integration degree of the existing OLT device.
[0005] To solve the above technical problems, the utility model provides the following technical scheme:
[0006] A single -mouth desktop type OLT device, which comprises a network port, a data exchange module and a GPON interface that are electrically connected in sequence.
[0007] The data exchange module comprises a switching chip, an FPGA chip and an optical module that are electrically connected in sequence, the network port is electrically connected with the switching chip, and the optical module is electrically connected with the GPON interface.
[0008] The data exchange module is further electrically connected with a power module.
[0009] Preferably, the network port has four network ports, and the GPON interface has one GPON interface.
[0010] Preferably, the shell is provided with a heat dissipation device for heat dissipation, and the heat dissipation device comprises an air exchange fan and a dustproof assembly.
[0011] Preferably, the single-port desktop OLT device further comprises a housing, at least one first air vent is formed on a side of the housing, and an air exchange fan is installed in the air vent to extract hot air inside the OLT device.
[0012] Preferably, a protective cover is fixed to a side of the air exchange fan close to the outside of the housing.
[0013] Preferably, second air vents are formed on two sides adjacent to the side where the first air vent is located, and the dustproof assembly is detachably connected to the housing to cover the second air vents and filter dust in the air flowing through the second air vents.
[0014] Preferably, a slot is formed at one end of the housing above the second air vents, the dustproof assembly comprises a fixed frame in sliding connection with the slot, a filter screen for filtering dust is fixedly connected inside the fixed frame, and a clamping plate is fixed to one end of the fixed frame and located outside the housing to pull the fixed frame out of the slot.
[0015] Preferably, the slot is processed into a dovetail groove at both ends, and the fixed frame is processed into a wedge-shaped block matching the dovetail groove at both ends close to the dovetail groove.
[0016] Preferably, the width of the clamping plate gradually increases from one end close to the fixed frame to one end away from the fixed frame.
[0017] The beneficial effects of the utility model are as follows:
[0018] (1) In the prior art, in order to make the OLT device run smoothly, a plurality of large functional modules are integrated inside, which increases the running burden of the device, resulting in that the device is not only huge in size, but also large in energy consumption and poor in heat dissipation, the FPGA chip is used to replace most of the functional modules in the OLT in the scheme, and the functions are highly integrated, for example, in the OLT, a large amount of data from a plurality of user terminal devices (such as ONUs) needs to be exchanged and routed at high speed, the FPGA can be used to realize flexible data exchange and forwarding functions, and can also help to realize a plurality of access service functions, and through programming, functions such as voice signal encoding and decoding, video stream processing, and data encryption and decryption can be realized, and the FPGA chip can also be used for conversion processing of optical signals and electrical signals, realizing the adaptation between different interface types, and the FPGA chip is small in size and has universal programmability, can greatly reduce the number of constituent parts of the existing OLT device, reduce the overall size of the OLT device, and reduce the energy consumption, and the device does not generate serious heat, has a simple structure, and is convenient for heat dissipation; at the same time, after the FPGA is connected with the switching chip, the functions of the switching chip can be supplemented and enhanced, such as the enhancement of data exchange functions, flexible flow control and management, protocol adaptation and conversion, assistance in fault detection and recovery support, etc., so that the OLT device runs more smoothly and stably.
[0019] To sum up, in the scheme, the FPGA chip is used to support the function of the OLT device, and the problems of high energy consumption, large size and poor heat dissipation caused by low integration of the internal modules of the existing OLT device are solved.
[0020] (2) In order to improve the heat dissipation effect of the OLT device, a heat dissipation device is also configured to assist heat dissipation, and the internal hot air is extracted by the ventilation fan to cool the device.
[0021] (3) In order to prevent dust from entering the device during ventilation, a dustproof assembly is arranged at the second ventilation port, the dustproof assembly is connected to the shell in a pull-out manner, the filter screen can filter the air entering the device, and when the filter screen is used for a long time, the dust accumulated on the filter screen causes the air permeability to be poor, affecting the heat dissipation effect. If the filter screen is cleaned from the outside of the shell (such as brushing off the dust on the filter screen), the dust is easy to enter the shell. In order to prevent the dust on the filter screen from entering the shell, the shell can only be disassembled for cleaning, which is not convenient, and because the shell is internally provided with a mainboard and other parts, the space inside the shell is interfered, which is not convenient for cleaning the filter screen. In the scheme, the fixed frame can be pulled out of the shell from the slot to clean the filter screen, which is more thorough and convenient, and will not affect the internal parts of the shell.
[0022] (4) In order to ensure that the fixed frame is stably connected to the shell, the slot is provided with dovetail grooves at both ends. Compared with the straight end, the fixing effect of the dovetail groove is better, so that the fixed frame cannot move horizontally relative to the shell, so that the filter screen surface can tightly cover the second ventilation port, and the dust filtering effect is improved. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.
[0024] Figure 1 Figure 1 is a module structure diagram of an embodiment 1 of a single-port desktop OLT device of the utility model patent;
[0025] Figure 2 Figure 1 is a module structure diagram of an embodiment 1 of a single-port desktop OLT device of the utility model patent;
[0026] Figure 3 Figure 1 is a module structure diagram of an embodiment 1 of a single-port desktop OLT device of the utility model patent;
[0027] Figure 4 Figure 1 is a module structure diagram of an embodiment 1 of a single-port desktop OLT device of the utility model patent;
[0028] Figure 5 It is the embodiment 2 of a single mouth desktop type OLT equipment of the utility model patent's perspective structure diagram;
[0029] Figure 6 It is the embodiment 2 of a single mouth desktop type OLT equipment of the utility model patent's perspective structure diagram;
[0030] Figure 7 It is the embodiment 2 of a single mouth desktop type OLT equipment of the utility model patent's Figure 6 The enlarged view of A of the embodiment 2 of a single mouth desktop type OLT equipment of the utility model patent.
[0031] The reference signs in the drawings of the specification include: shell 1, second vent 11, slot 12, ventilation fan 21, protective cover 22, fixed frame 31, filter screen 32, clamping plate 33. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0033] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, cannot be understood as a limitation on the utility model.
[0034] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are not included in the number, and above, below, etc. are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.
[0036] This embodiment relates to a novel single-port desktop OLT device, designed to provide efficient, stable equipment support for optical communication networks with good heat dissipation and protection performance.
[0037] Example 1:
[0038] like Figures 1-3 As shown, this single-port desktop OLT device mainly consists of a network port, a data switching module, a GPON interface, and a power supply module. The data switching module serves as the core data processing and transmission hub. Its internal switching chip, FPGA chip, and optical module are electrically connected in sequence. The network port is electrically connected to the switching chip, the optical module is electrically connected to the GPON interface, and the power supply module provides a stable power supply to the data switching module.
[0039] This single-port desktop OLT device has four network ports, which adopt a standard Ethernet interface design and can connect to various external network devices, such as routers and servers. The network ports have high-speed data transmission capabilities and can receive various data traffic from upper-layer network devices, including but not limited to Internet access request data, video stream data, voice communication data, etc., and transmit these data to the connected switching chip.
[0040] The switching chip has a large-capacity data buffer and high-speed data switching capability. It can quickly switch and route the data input from the network port according to information such as the destination address of the data, and accurately forward it to the subsequent FPGA chip for further processing. At the same time, it can also forward the uplink data from the FPGA chip to the corresponding network port for transmission to the upper layer network.
[0041] The FPGA chip has high flexibility and programmability. In a data processing flow, the FPGA chip receives downlink data from the switching chip, and can perform various preprocessing operations on the data, such as encoding format conversion to make the data more suitable for transmission in a GPON network, and preliminary signal correction and verification to improve the accuracy of data transmission. In the uplink direction, the FPGA chip decodes and unpacks the electrical signal converted from the uplink optical signal of the optical module, and then transmits the processed uplink data to the switching chip. The FPGA chip is electrically connected to a clock generator, which provides accurate clock signals for the operation of the chip, ensuring that all operations are performed according to accurate timing, thereby ensuring the accuracy and efficiency of data processing.
[0042] The optical module is compatible with the GPON interface and can efficiently convert optical and electrical signals. In the downlink direction, the optical module converts the electrical signal processed by the FPGA chip into an optical signal, which is transmitted to the external optical distribution network (ODN) through the GPON interface, so as to be further transmitted to the optical network terminal (ONT) or the optical network unit (ONU). In the uplink direction, the optical module receives the uplink optical signal from the GPON interface and converts it into an electrical signal before transmitting it to the FPGA chip.
[0043] The GPON interface of the single-port desktop OLT device is one interface, which is designed in accordance with the GPON-related standard specifications and has the characteristics of high bandwidth and long-distance transmission. As the key interface for connecting to the external ODN, it can stably transmit the downlink optical signal processed by the data exchange module to the ODN network, and receive the uplink optical signal transmitted from multiple ONTs / ONUs in the ODN network and transmit it to the data exchange module for subsequent processing.
[0044] The power module adopts a high-efficiency and stable power circuit design, which can convert the input mains or other external power into a stable DC voltage required by the data exchange module. For example, it can convert 220V AC mains into different levels of DC voltage such as 5V and 3.3V, to provide reliable power support for the switching chip, FPGA chip, optical module, etc., and ensure the normal and stable operation of the entire single-port desktop OLT device.
[0045] In actual operation, when external network equipment sends data to the OLT device through the network port, the data first enters the switching chip, is routed to the FPGA chip for preprocessing, and then is converted into an optical signal by the optical module and transmitted to the ODN network through the GPON interface. Conversely, when uplink optical signals are transmitted from the ODN network, they enter the optical module through the GPON interface, are converted into electrical signals, and then are processed by the FPGA chip and transmitted to the upper-layer network equipment through the switching chip from the network port, thereby realizing a complete data interaction and transmission process.
[0046] Example 2:
[0047] Unlike Embodiment 1, in order to improve the heat dissipation of this single-port desktop OLT device, such as... Figures 4-7 As shown, the single-port desktop OLT device also includes a housing 1, which serves as the external protective structure for the entire device and houses the aforementioned key internal components. To ensure the stability of the device during operation, the housing 1 is equipped with a dedicated heat dissipation device.
[0048] Two first ventilation openings are provided on the side of the housing 1, and an air exchange fan 21 is installed in the first ventilation opening. The air exchange fan 21 can draw out the hot air generated inside the OLT equipment due to the operation of electronic components, thereby reducing the internal temperature of the equipment and preventing the performance of components from deteriorating or even being damaged due to overheating. In order to ensure the safe operation of the air exchange fan 21, a protective cover 22 is fixed on the side of it near the outside of the housing 1 to prevent external objects from accidentally contacting the fan blades and causing damage.
[0049] Meanwhile, two opposing second vents 11 are provided on both sides adjacent to the side where the first vent is located. These second vents 11 are used to introduce external cold air to form good air convection and further improve the heat dissipation effect. In order to prevent dust from entering the equipment with the air, a dustproof component is detachably connected to the housing 1 to cover the second vents 11 and filter dust from the airflow.
[0050] Specifically, a slot 12 is provided at one end of the housing 1 near the second vent 11. The dustproof component includes a fixed frame 31 that is slidably connected to the slot 12. A filter screen 32 for filtering dust is fixedly connected inside the fixed frame 31 (referring to the inner surface of the fixed frame 31). When air passes through the filter screen 32, dust is effectively blocked outside the device.
[0051] The upper end of the fixed frame 31 (with) Figure 6 , Figure 7 (For the purpose of description) A retaining plate 33 is fixed to the outside of the housing 1 and is used to pull the retaining frame 31 out of the slot 12, so that the user can regularly disassemble the dustproof assembly to clean or replace the filter 32, such as Figure 5 As shown, the two ends of the slot 12 are machined into dovetail grooves, and the two ends of the fixing frame 31 near the dovetail grooves are machined into wedge-shaped blocks that match the dovetail grooves. This design allows the fixing frame 31 to be stably connected in the slot 12 and will not easily loosen or fall off. In addition, the width of the card plate 33 gradually increases from the end near the fixing frame 31 to the end away from the fixing frame 31. This setting makes it easy for the user to hold the card plate 33 with their fingers and pull the card plate 33.
[0052] As can be seen from the above, the technical principle of this utility model is as follows:
[0053] The FPGA chip is used to replace most of the functional modules in the OLT, and the functions are highly integrated. For example, in the OLT, a large amount of data from multiple user terminal devices (such as ONUs) needs to be exchanged and routed at high speed, and the FPGA can be used to realize flexible data exchange and forwarding functions, and can also help to realize various access service functions, such as voice signal coding and decoding, video stream processing, and data encryption and decryption functions through programming, and can also be used for optical signal and electrical signal conversion processing, realizing the adaptation between different interface types. Moreover, the FPGA chip has small size and low energy consumption, which can greatly reduce the overall size and energy consumption of the OLT device, and the device does not generate serious heat, has simple structure and is easy to dissipate heat. At the same time, after the FPGA is connected with the switching chip, the functions of the switching chip can be supplemented and enhanced, such as the enhancement of data exchange function, flexible flow control and management, protocol adaptation and conversion, assistance in fault detection and recovery support, etc., so that the OLT device runs more smoothly and stably.
[0054] At the same time, in order to improve the heat dissipation effect of the OLT device, a heat dissipation device is also configured to assist heat dissipation, and the internal hot air is extracted by the ventilation fan 21 to cool the device. In order to prevent dust from entering the device during ventilation, a dustproof assembly is arranged at the second ventilation opening 11, which is pullably connected to the shell 1. The filter screen 32 can filter the air entering the device interior. When the filter screen 32 is used for a long time, dust accumulates on the filter screen 32, causing poor air permeability and affecting heat dissipation. If the filter screen 32 is cleaned from the outside of the shell 1 (such as brushing off the dust on the filter screen 32), the dust is easy to enter the shell 1. In order to prevent the dust on the filter screen 32 from entering the shell 1, the shell 1 can only be disassembled for cleaning, which is not convenient to operate. Moreover, because the shell 1 is internally provided with a mainboard and other parts, the internal space of the shell 1 is interfered, which is not convenient for cleaning the filter screen 32. In the present scheme, the fixed frame 31 can be pulled out of the shell 1 from the slot 12 to clean the filter screen 32, which is more thorough and convenient, and does not affect the internal parts of the shell 1.
[0055] In summary, the single-port desktop OLT device improves the reliability and service life of the device while ensuring the performance of optical communication data processing and transmission by reasonable internal component layout and perfect heat dissipation and dust prevention design, and can meet the application requirements of various optical communication network scenes, and solve the problems of high energy consumption, large size and poor heat dissipation caused by low internal module integration of the existing OLT device.
[0056] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.
Claims
1. A single-port desktop OLT device, characterized by, The network port, the data exchange module and the GPON interface are electrically connected in sequence. The data exchange module comprises a switching chip, an FPGA chip and an optical module which are electrically connected in sequence. The data exchange module is further electrically connected with a power module.
2. The single-port desktop OLT device of claim 1, wherein, The network port has four, and the GPON interface has one.
3. The single-port desktop OLT device of claim 1, wherein, The shell is further provided with a heat dissipation device for heat dissipation.
4. The single-port desktop OLT device of claim 3, wherein, The shell is provided with at least one first ventilation opening on the side surface, and a ventilation fan capable of extracting hot air inside the OLT device is installed in the ventilation opening.
5. The single-port desktop OLT device of claim 4, wherein, The ventilation fan is fixed with a protective cover on the side close to the outside of the shell.
6. The single-port desktop OLT device of claim 5, wherein, The shell is provided with two second ventilation openings arranged oppositely on the two sides adjacent to the side surface where the first ventilation opening is located.
7. The single-port desktop OLT device of claim 6, wherein, The dustproof assembly is detachably connected to the shell to cover the second ventilation opening and filter dust flowing through the second ventilation opening.
8. The single-port desktop OLT device of claim 7, wherein, The shell is provided with a slot at one end close to the second ventilation opening, and the dustproof assembly comprises a fixed frame slidably connected with the slot. The two ends of the slot are processed into dovetail grooves, and the two ends of the fixed frame close to the dovetail grooves are processed into wedge-shaped blocks matched with the dovetail grooves.