CN220290210U

CN220290210U - USB bandwidth expansion device, system and equipment

Info

Publication number: CN220290210U
Application number: CN202321713193.6U
Authority: CN
Inventors: 丛庆; 陈培德; 林志伟; 何珏
Original assignee: Fujian Centerm Information Co Ltd
Current assignee: Fujian Centerm Information Co Ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-01-02
Anticipated expiration: 2033-07-03

Abstract

The utility model provides a USB bandwidth expansion device, a system and equipment, which are respectively connected with a host and a peripheral through a first USB standard bus and a second USB standard bus, so as to realize data transmission. When the host is required to be connected with a plurality of peripheral devices through the expansion device, the expansion device is only required to be correspondingly designed, namely the number of USB buses in the expansion device is increased, the adjustment of a main board or an internal space of the host is not required, meanwhile, the USB bandwidth expansion device with corresponding standard can be flexibly selected according to the communication requirements of different hosts and peripheral devices, and the flexibility of USB bandwidth expansion of the host is improved. In addition, the USB bandwidth expansion device is additionally arranged on the hardware, so that a plurality of hosts are not required to cooperatively connect with peripheral equipment, the hardware cost and the space occupation are reduced, the hosts are prevented from adopting network connection to transmit and forward commands, and the service operation stability is ensured.

Description

USB bandwidth expansion device, system and equipment

Technical Field

The present utility model relates to the field of universal serial bus communications technologies, and in particular, to a USB bandwidth extension device, system, and apparatus.

Background

At present, although a computing host can provide a plurality of universal serial bus interfaces, namely USB interfaces, the computing host is actually expanded by a hub from internal fixed amount of bus resources to obtain a plurality of USB interfaces, for example, the computing host only comprises 1USB 3.0 or more standard buses and 1-2 USB2.0 buses; therefore, the plurality of USB interfaces of the computing host actually share the bus bandwidth. Among a plurality of USB interfaces, bandwidth resources of different buses cannot be shared, and peripheral equipment (called peripheral equipment for short) with different communication protocol standards can only use bandwidth resources with corresponding standards and cannot be used in an out-of-order mode. Although higher bandwidth resources can be provided by using a USB bus with a higher communication protocol standard, the USB bandwidth resources have bandwidth loss in practical applications, and the existing USB peripheral is still based on the USB2.0 standard bus based on the communication data volume and cost considerations of the current USB peripheral.

In the prior art, the following two ways are generally adopted to expand the bandwidth of the USB interface: one is to increase the number of its USB2.0 buses by adding a bridge or expansion card to the computing host; however, adding the bridge piece belongs to a plate scheme, namely, the bridge piece needs to be imported in the design stage of the main board of the host; adding an expansion card requires a host to reserve expansion interfaces such as PCIe (PCI-Express, bus and interface standard proposed by Intel) and the like, and a corresponding space is reserved in the host; therefore, the method needs to correspondingly design the host, has poor flexibility and has long development period. The other is that different peripheral devices are connected through a plurality of hosts, and then the hosts are connected and forwarded through a network protocol to cooperatively complete tasks; however, the multiple hosts cooperate to complete the work, so that the hardware cost and the space occupation are increased, the network connection delay between the hosts is unstable, and the stability of the service is easily affected.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: a USB bandwidth expansion device, a system and equipment are provided, which expand the USB bandwidth of a computing host and improve the connection capability of a host USB bus.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a USB bandwidth expansion device comprises a bus data processor;

the bus data processor comprises a first USB standard bus and a plurality of second USB standard buses;

one end of the first USB standard bus is used for being connected with a host, the other ends of the first USB standard buses are respectively connected with one ends of the second USB standard buses, and the other ends of the second USB standard buses are used for being connected with corresponding peripheral equipment.

Further, the device also comprises a bus expansion chip; the first port of the bus extension chip is connected with the first USB standard bus, and the second port of the bus extension chip is used for connecting corresponding peripheral equipment.

Further, the system also comprises an OTG controller; one end of the first USB standard bus is connected with one end of the OTG controller, and the other end of the OTG controller is used for being connected with a host.

Further, the system also comprises a DRD controller; one end of the first USB standard bus is connected with one end of the DRD controller, and the other end of the DRD controller is used for being connected with a host.

Further, the first USB standard bus is a USB3.0 or more standard bus; the second USB standard bus is a USB2.0 standard bus.

In order to solve the technical problems, the utility model adopts another technical scheme that:

a USB bandwidth expansion system comprises a host and the USB bandwidth expansion device;

the host comprises a third USB standard bus corresponding to the first USB standard bus;

the host is connected with the USB bandwidth expansion device through the third USB standard bus.

Further, the third USB standard bus of the host is connected to the first USB standard bus of the USB bandwidth extension device.

a USB bandwidth expansion device comprises the USB bandwidth expansion system; the USB bandwidth expansion device and the host form a priority management module, a virtual bus module and a data forwarding module;

the priority management module is used for adjusting the balance of the data transmission rates of different peripheral devices according to the physical bandwidth of the first USB standard bus;

the virtual bus module is used for simulating and generating virtual equipment corresponding to the second USB standard bus according to the communication information of the peripheral equipment received by the host;

the data forwarding module is configured to implement data forwarding among the first USB standard bus, the second USB standard bus, and the third USB standard bus.

The utility model has the beneficial effects that: the USB bandwidth expansion device is respectively connected with the host and the peripheral through the first USB standard bus and the second USB standard bus, so that data transmission is realized. When the host is required to be connected with a plurality of peripheral devices through the expansion device, the expansion device is only required to be correspondingly designed, namely the number of USB buses in the expansion device is increased, the adjustment of a main board or an internal space of the host is not required, meanwhile, the USB bandwidth expansion device with corresponding standard can be flexibly selected according to the communication requirements of different hosts and peripheral devices, and the flexibility of USB bandwidth expansion of the host is improved. In addition, the USB bandwidth expansion device is additionally arranged on the hardware, so that a plurality of hosts are not required to cooperatively connect with peripheral equipment, the hardware cost and the space occupation are reduced, the hosts are prevented from adopting network connection to transmit and forward commands, and the service operation stability is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a USB bandwidth expansion device according to an embodiment of the present utility model;

FIG. 2 is a schematic block diagram of a USB bandwidth extension system according to an embodiment of the present utility model;

fig. 3 is a schematic block diagram of a UBS bandwidth extension device according to an embodiment of the present utility model;

description of the reference numerals:

1. USB bandwidth expanding means; 2. a host; 3. a peripheral device; 11. a bus data processor; 12. a bus expansion chip; 111. a first USB standard bus; 112. a second USB standard bus; 21. a third USB standard bus; 31. a priority management module; 32. a virtual bus module; 33. and a data forwarding module.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, an embodiment of the present utility model provides a USB bandwidth extension apparatus, including a bus data processor;

From the above description, the beneficial effects of the utility model are as follows: the USB bandwidth expansion device is respectively connected with the host and the peripheral through the first USB standard bus and the second USB standard bus, so that data transmission is realized. When the host is required to be connected with a plurality of peripheral devices through the expansion device, the expansion device is only required to be correspondingly designed, namely the number of USB buses in the expansion device is increased, the adjustment of a main board or an internal space of the host is not required, meanwhile, the USB bandwidth expansion device with corresponding standard can be flexibly selected according to the communication requirements of different hosts and peripheral devices, and the flexibility of USB bandwidth expansion of the host is improved. In addition, the USB bandwidth expansion device is additionally arranged on the hardware, so that a plurality of hosts are not required to cooperatively connect with peripheral equipment, the hardware cost and the space occupation are reduced, the hosts are prevented from adopting network connection to transmit and forward commands, and the service operation stability is ensured.

As can be seen from the above description, when the second USB standard bus data included in the bus data processor is insufficient, the second USB standard bus can be amplified as required by adding the corresponding number of bus expansion chips, so that the USB bandwidth expansion device can flexibly adjust the number of buses, and no modification is required to the host.

As can be seen from the above description, the OTG controller can configure the first USB standard bus to be used in the Device mode, so that the apparatus can be connected to a USB interface corresponding to the host as a USB mobile Device.

As can be seen from the above description, the DRD controller can configure the first USB standard bus to be used in the Device mode, so that the apparatus can be connected to a USB interface corresponding to the host as a USB mobile Device.

As can be seen from the above description, based on the current communication requirements of the general-purpose host and the peripheral, a USB3.0 or more standard bus with high bandwidth is adopted between the host and the device, so as to ensure that the bandwidth between the host and the device is abundant. And a USB2.0 standard bus matched with the peripheral is adopted between the peripheral and the device so as to ensure the suitability between the device and the peripheral.

Referring to fig. 2, another embodiment of the present utility model provides a USB bandwidth extension system, including a host and a USB bandwidth extension device described above;

From the above description, the beneficial effects of the utility model are as follows: the host and the peripheral are connected through the USB bandwidth expansion device, so that data transmission is realized. When the host is required to be connected with a plurality of peripheral devices through the expansion device, the expansion device is only required to be correspondingly designed, namely the number of USB buses in the expansion device is increased, the adjustment of a main board or an internal space of the host is not required, meanwhile, the USB bandwidth expansion device with corresponding standard can be flexibly selected according to the communication requirements of different hosts and peripheral devices, and the flexibility of USB bandwidth expansion of the host is improved. In addition, the USB bandwidth expansion device is additionally arranged on the hardware, so that a plurality of hosts are not required to cooperatively connect with peripheral equipment, the hardware cost and the space occupation are reduced, the hosts are prevented from adopting network connection to transmit and forward commands, and the service operation stability is ensured.

Referring to fig. 3, another embodiment of the present utility model provides a UBS bandwidth expansion device, including a USB bandwidth expansion system as described above; the USB bandwidth expansion device and the host form a priority management module, a virtual bus module and a data forwarding module;

The USB bandwidth expansion device and the system provided by the utility model can be used for expanding and calculating the USB bandwidth of a host computer and improving the USB bus connection capability of the host computer under the scene that the host computers such as bank counter, industrial control and the like are connected with more peripheral devices, and the following description is given by a specific embodiment:

referring to fig. 1, a first embodiment of the present utility model is as follows:

a USB bandwidth extension device 1 comprising a bus data processor 11;

the bus data processor 11 includes a first USB standard bus 111 and a plurality of second USB standard buses 112;

specifically, one end of the first USB standard bus 111 is used to connect to the host 2, the other ends of the first USB standard bus 111 are respectively connected to one ends of the plurality of second USB standard buses 112, and the other ends of the plurality of second USB standard buses 112 are used to connect to the corresponding peripheral devices 3.

It should be noted that, the first USB standard bus 111 and the plurality of second USB standard buses 112 may implement data communication within the bus data processor 11.

In some embodiments, the bus data processor 11 is a Rockchip RK3568 processor including one USB3.0 standard DRD bus, one USB3.0 standard Master bus, and two USB2.0 standard Master buses. Wherein, by configuring the USB3.0 standard DRD bus into the Device mode, the USB3.0 standard DRD bus is connected and communicated with the host 2 as a USB3.0 standard slave bus. One USB3.0 standard Master bus and two USB2.0 standard Master buses are used to connect and communicate with the corresponding peripheral devices 3.

In an alternative embodiment, the USB bandwidth extension device 1 further comprises a bus extension chip 12; a first port of the bus extension chip 12 is connected to the first USB standard bus 111, and a second port of the bus extension chip 12 is used to connect to a corresponding peripheral device 3.

In some embodiments, the bus extension chip 12 is a VL085 chip; the bus extension chip 12 is connected to the first USB standard bus 111 through a PCIe interface on the bus data processor 11. The number of the bus expansion chips 12 can be increased as required, that is, when the USB2.0 standard Master bus of the USB bandwidth expansion device 1 cannot meet the connection requirement of the corresponding peripheral device 3, the PCIe interfaces of the USB bandwidth expansion device 1 are connected with the plurality of bus expansion chips 12 to realize the expansion of the number of the second USB standard buses 112, so that the number of the bus interfaces of the USB bandwidth expansion device 1 can be flexibly combined or configured, the expansibility is strong, and the host 2 does not need to be modified.

In an alternative embodiment, the USB bandwidth extension apparatus 1 further comprises an OTG controller; one end of the first USB standard bus 111 is connected to one end of the OTG controller, and the other end of the OTG controller is connected to the host 2.

In an alternative embodiment, the USB bandwidth extension apparatus 1 further comprises a DRD controller; one end of the first USB standard bus 111 is connected to one end of the DRD controller, and the other end of the DRD controller is connected to the host 2.

In an alternative embodiment, the first USB standard bus 111 is a USB3.0 or more standard bus; the second USB standard bus 112 is a USB2.0 standard bus.

It should be noted that, based on the USB2.0 standard, the USB2.0 is required to be compatible with the USB1.1 standard and the USB1.0 standard, so that the USB communication version of the peripheral device connected to the USB bandwidth extension device can support the USB2.0 standard, the USB1.1 standard and the USB1.0 standard.

It should be noted that the communication rate provided by the USB standard is shown in table 1.

Table 1 communication rates provided by USB standards

The working principle of the USB bandwidth expansion device is as follows:

the USB bandwidth extension device 1 establishes communication with the host 2 through a communication channel constructed by the first USB standard bus 111 (in this embodiment, USB3.0 standard or more standard slave bus), while the USB bandwidth extension device 1 establishes communication with the corresponding peripheral device 3 through the second USB standard bus 112 (in this embodiment, USB2.0 standard Master bus). The USB bandwidth extension apparatus 1 is enabled to acquire the device information of the peripheral device 3 through the second USB standard bus 112, and then forward the device information to the host 2 through the first USB standard bus 111 and the third USB standard bus 21. After receiving the device information transmitted by the third USB standard bus 21, the host 2 performs data processing according to the device information and issues a corresponding instruction packet to the USB bandwidth extension apparatus 1 through the first USB standard bus 111 and the third USB standard bus 21. After receiving the instruction packet transmitted by the first USB standard bus 111, the USB bandwidth extension device 1 forwards the instruction packet to the corresponding peripheral device 3 through the second USB standard bus 112, after the peripheral device 3 responds, the USB bandwidth extension device 1 forwards response information to the host 2 through the first USB standard bus 111 and the third USB standard bus 21, and after the host 2 performs data processing according to the response information, the communication connection between the host 2 and the peripheral device 3 is completed, that is, the host 2 and the peripheral device 3 implement a connection relationship through the first USB standard bus and the second USB standard bus set up by the USB bandwidth extension device 1, so that the host 2 and the peripheral device 3 belong to an indirect connection relationship, the bandwidth extension design originally required to be directly performed on the host 2 is replaced by the bandwidth extension design of the USB bandwidth extension device 1, and the bandwidth extension of the host 2 is realized while the connection between the host 2 and the peripheral device 3 is ensured.

Referring to fig. 2, a second embodiment of the present utility model is as follows:

a USB bandwidth extension system, comprising a host 2 and a USB bandwidth extension device 1 according to embodiment one;

the host 2 includes a third USB standard bus 21 corresponding to the first USB standard bus 111;

the host 2 is connected to the USB bandwidth extension device 1 via the third USB standard bus 21.

Specifically, the third USB standard bus 21 of the host 2 is connected to the first USB standard bus 111 of the USB bandwidth extension apparatus 1.

In some embodiments, the first USB standard bus 111 is a USB3.0 or more standard Master bus in the figure; the third USB standard bus 21 is a USB3.0 or more standard slave bus in the figure; the second USB standard bus 112 is the USB2.0 standard Master bus in the figure. The bus data processor 11 is connected to the USB3.0 or more standard Master bus 21 of the host based on the USB3.0 or more standard slave bus 111 to realize communication connection between the USB expansion device 1 and the host 2; the bus data processor 11 accesses the peripheral 3 based on the USB2.0 standard Master bus 112.

Referring to fig. 3, a third embodiment of the present utility model is as follows:

a USB bandwidth extension device, including a USB bandwidth extension system as described in embodiment two; the USB bandwidth expansion device and the host form a priority management module 31, a virtual bus module 32, and a data forwarding module 33;

the priority management module 31 is configured to adjust the balance of data transmission rates of different peripheral devices according to the physical bandwidth of the first USB standard bus;

the virtual bus module 32 is configured to simulate and generate a virtual device corresponding to the second USB standard bus according to the communication information of the peripheral device received by the host;

the data forwarding module 33 is configured to implement data forwarding among the first USB standard bus, the second USB standard bus, and the third USB standard bus.

The USB bandwidth extension device implements the working principle described in the first embodiment through the priority management module 31, the virtual bus module 32, and the data forwarding module 33.

In summary, according to the USB bandwidth extension device, the system and the apparatus provided by the present utility model, the host and the peripheral are connected through the USB bandwidth extension device, so as to realize data transmission. When the host is required to be connected with a plurality of peripheral devices through the expansion device, the expansion device is only required to be correspondingly designed, namely the number of USB buses in the expansion device is increased, the adjustment of a main board or an internal space of the host is not required, meanwhile, the USB bandwidth expansion device with corresponding standard can be flexibly selected according to the communication requirements of different hosts and peripheral devices, and the flexibility of USB bandwidth expansion of the host is improved. In addition, the USB bandwidth expansion device is additionally arranged on the hardware, so that a plurality of hosts are not required to cooperatively connect with peripheral equipment, the hardware cost and the space occupation are reduced, the hosts are prevented from adopting network connection to transmit and forward commands, and the service operation stability is ensured.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. A USB bandwidth extension apparatus comprising a bus data processor;

2. The USB bandwidth extension device according to claim 1, further comprising a bus extension chip; the first port of the bus extension chip is connected with the first USB standard bus, and the second port of the bus extension chip is used for connecting corresponding peripheral equipment.

3. The USB bandwidth extension device according to claim 1, further comprising an OTG controller; one end of the first USB standard bus is connected with one end of the OTG controller, and the other end of the OTG controller is used for being connected with a host.

4. The USB bandwidth extension device according to claim 1, further comprising a DRD controller; one end of the first USB standard bus is connected with one end of the DRD controller, and the other end of the DRD controller is used for being connected with a host.

5. The USB bandwidth extension device according to claim 1, wherein the first USB standard bus is a USB3.0 or more standard bus; the second USB standard bus is a USB2.0 standard bus.

6. A USB bandwidth extension system comprising a host and a USB bandwidth extension device according to any one of claims 1-5;

7. The USB bandwidth extension system according to claim 6, wherein the third USB standard bus of the host is connected to the first USB standard bus of the USB bandwidth extension device.

8. A USB bandwidth extension device comprising a USB bandwidth extension system according to any one of claims 6-7; the USB bandwidth expansion device and the host form a priority management module, a virtual bus module and a data forwarding module;