USB architecture

Abstract

The utility model discloses a universal serial bus (USB) framework, which comprises a master control board and a plurality of slave control boards, the main control board is provided with a first USB HUB, a main control output end and a plurality of groups of USB Hosts, one group of USB Hosts is connected to the main control output end through the first USB HUB, and the other groups of USB Hosts are connected with the main control output end; each slave control board is provided with a second USB HUB, a plurality of conducting wires, a slave control input end and a slave control output end, and one conducting wire and other conducting wires are arranged at the slave control output end in a crossed mode; the master control output end of the master control board is connected with the slave control input ends of the slave control boards, in every two adjacent slave control boards, the slave control output end of the previous slave control board is connected with the slave control input end of the next slave control board, and the multiple slave control boards are arranged in a row. According to the utility model, the plurality of slave control boards can be arranged in a row, so that the occupied space is smaller, the plurality of slave control boards are more orderly when being deployed, and the connection between external equipment and the slave control boards is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to USB technical field, especially point to a kind of USB architecture. BACKGROUND

[0002] With the wide application of USB (Universal Serial Bus) technology, USB architecture plays a vital role in various electronic devices.

[0003] In the existing USB architecture design, USB HUB is widely used to expand connection, so as to access more external devices. However, when the host device is equipped with multiple groups of USB Host, each group of USB Host often needs to be separated into multiple rows, and each row is connected with USB HUB respectively. This multi-row connection method occupies more physical space, and USB HUB is usually scattered, and the deployment state is relatively chaotic, which reduces the aesthetic appearance and easily affects the later maintenance. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of USB architecture, so that multiple USB HUBs corresponding to multiple groups of USB Host can be arranged in a row, to improve the rationality of USB HUB deployment.

[0005] To achieve the above purpose, the utility model provides a solution: a kind of USB architecture, comprising a master control board and multiple slave control boards;

[0006] The master control board is provided with a first USB HUB, a master control output end and multiple groups of USB Host, wherein one group of USB Host is connected to the master control output end through the first USB HUB, and the other groups of USB Host are connected with the master control output end;

[0007] Each slave control board is provided with a second USB HUB, multiple wires, a slave control input end and a slave control output end, wherein one end of one wire is connected with the slave control input end, the other end of one wire is connected to the slave control output end through the second USB HUB, and the two ends of the other wires are connected with the slave control input end and the slave control output end respectively, one wire and the other wires are crossed at the slave control output end, and multiple groups of USB Host are connected with the second USB HUB through multiple wires;

[0008] The master control output end of the master control board is connected with the slave control input end of the slave control board, in the adjacent two slave control boards, the slave control output end of the former slave control board is connected with the slave control input end of the latter slave control board, and multiple slave control boards are arranged in a row.

[0009] Preferably, the master control board is provided with a master control MCU, two groups of USB Hosts and a first wire, the two groups of USB Hosts are connected with the master control MCU respectively, one group of USB Hosts is connected with the master output end through the first USB HUB and the first wire, and the other group of USB Hosts is connected with the master output end through the first wire.

[0010] Preferably, the slave control board is provided with a slave control MCU, a second wire and a third wire, the slave control MCU is connected with the second USB HUB, one end of the second wire is connected with the slave input end, the other end of the second wire is connected to the slave output end through the second USB HUB, and the two ends of the third wire are connected with the slave input end and the slave output end respectively, the second wire and the third wire are crossed at the slave output end, one group of USB Hosts is connected with the third wire, and the other group of USB Hosts is connected with the second wire.

[0011] Preferably, the master control board is provided with a power supply circuit, each slave control board is provided with a conversion circuit and a fourth wire, the output end of the power supply circuit is connected with the master output end through the first wire, the input of the conversion circuit is connected with the slave input end and the slave output end through the fourth wire, and the output end of the conversion circuit is connected with the slave control MCU.

[0012] Preferably, the power supply circuit is a 12V power supply circuit, and the conversion circuit is a 12V to 5V conversion circuit.

[0013] Preferably, the master control board is provided with a master control output contact, and the master output end is connected with the master control output contact.

[0014] Preferably, the master control board is provided with a master control output contact, and the master output end is connected with the master control output contact.

[0015] Preferably, the first USB HUB is a 1-to-4 USB HUB.

[0016] Preferably, the second USB HUB is a 1-to-2 USB HUB.

[0017] With the above scheme, the beneficial effects of the utility model are that one group of USB Host of the utility model's main control board is connected to the main control output end through the first USB HUB, other groups of USB Host are connected to the main control output end, so that the main control board can expand its required USB function through the first USB HUB. The second USB HUB, the slave control input end and the slave control output end on each slave control board are connected through multiple wires, the multiple wires are cross-wired at the slave control output end, multiple groups of USB Host are connected with the second USB HUB through the multiple wires, and the main control output end of the main control board is connected with the slave control input end of the slave control board, the slave control output end of the former slave control board in the two adjacent slave control boards is connected with the slave control input end of the latter slave control board, so that multiple slave control boards are arranged in a row, while not affecting different groups of USB Host to respectively transmit data, occupying smaller physical space, multiple slave control boards are more neat when deploying, connecting between external equipment and the slave control board is more convenient, and it is also beneficial to improve the aesthetic degree. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the schematic diagram of nine slave control boards connected to two groups of USB Host of the main control board based on the USB2.0 seven-layer architecture in the utility model embodiment one;

[0019] Figure 2 is the detailed architecture diagram of nine slave control boards connected to two groups of USB Host of the main control board based on the USB2.0 seven-layer architecture in the utility model embodiment one;

[0020] Figure 3 is the structure schematic diagram of the second shell being installed on the first shell through the clamping mode in the utility model embodiment one;

[0021] Figure 4 is the structure schematic diagram of the right side view of the first shell in the utility model embodiment one;

[0022] Figure 5 is the structure schematic diagram of the left side view of the second shell in the utility model embodiment one;

[0023] Figure 6 is the schematic diagram of thirteen slave control boards connected to three groups of USB Host of the main control board based on the USB2.0 seven-layer architecture in the utility model embodiment two;

[0024] Figure 7 is the detailed architecture diagram of thirteen slave control boards connected to three groups of USB Host of the main control board based on the USB2.0 seven-layer architecture in the utility model embodiment two.

[0025] REFERENCE SIGNS:

[0026] 1, master control board;11, master control MCU;12, first USB HUB;13, USB Host;14, first wire;15, power supply circuit;

[0027] 2, slave control board;21, slave control MCU;22, second USB HUB;23, second wire;24, third wire;25, fourth wire;26, conversion circuit;

[0028] 3, first shell;31, master control output contact;

[0029] 4, second shell;41, slave control input contact;42, slave control output contact;

[0030] 5, non-USB interface. DETAILED DESCRIPTION

[0031] The utility model will be further described with the drawings and specific embodiments.

[0032] The utility model provides a USB framework, as shown in the figure, comprising master control board 1 and multiple slave control boards 2; Figures 1 to 7

[0033] The master control board 1 is equipped with first USB HUB 12, master control output end and multiple groups of USB Host 13, wherein a group of USB Host 13 is connected to the master control output end through the first USB HUB 12, and the other groups of USB Host 13 are connected to the master control output end;

[0034] Each slave control board 2 is equipped with second USB HUB 22, multiple wires, slave control input end and slave control output end, wherein one end of one wire is connected to the slave control input end, the other end of the wire is connected to the slave control output end through the second USB HUB 22, and the two ends of the other wires are connected to the slave control input end and the slave control output end respectively, one wire and the other wires are crossed at the slave control output end, and the multiple groups of USB Host 13 are connected to the second USB HUB 22 through the multiple wires;

[0035] The master control output end of the master control board 1 is connected to the slave control input end of the slave control board 2, the slave control output end of the former slave control board 2 is connected to the slave control input end of the latter slave control board 2 in the adjacent two slave control boards 2, and the multiple slave control boards 2 are arranged in a row.

[0036] The master control board 1 of the utility model can be provided with multiple groups of USB Host 13, wherein a group of USB Host 13 is expanded through the first USB HUB 12, to satisfy the USB function demand of the master control board 1 itself. Of course, expansion can not be carried out in other embodiments.

[0037] ​The number of wires of the slave control board 2 is matched with the number of groups of the USB Host 13, one second USB HUB 22 is arranged in each slave control board 2, and the second USB HUB 22 is connected with the slave control input end and the slave control output end through one wire, and the other ends of the other wires are respectively connected with the slave control input end and the slave control output end, one wire connected with the second USB HUB 22 and the other wires are crossed at the slave control output end, and the architecture of each slave control board 2 is ensured to be the same. When the master control output end of the master control board 1 is connected with the slave control input end of the slave control board 2, or the slave control output end of the former slave control board 2 is connected with the slave control input end of the latter slave control board 2 between two adjacent slave control boards 2, it is not necessary to connect in the order, and the number of the slave control boards 2 can also be adjusted according to the requirement, and the use is more flexible.

[0038] The wires for transmitting different groups of USB signals corresponding to the USB Host 13 are preset on the slave control board 2, so that even if a plurality of slave control boards 2 are arranged in a row, the USB signal transmission of the USB Host 13 on the master control board 1 to the corresponding slave control board 2 will not be affected. Of course, the first USB HUB 12 and the second USB HUB 22 can be set according to the actual requirement, so that the number of external devices capable of being connected on the master control board 1 or each slave control board 2 is adjusted correspondingly.

[0039] Embodiment one:

[0040] As shown in Figure 2 The master control board 1 is provided with a master control MCU 11, two groups of USB Hosts 13 and first wires 14, the two groups of USB Hosts 13 are connected with the master control MCU 11, one group of USB Hosts 13 is connected with the master control output end through the first USB HUB 12 and the first wire 14, and the other group of USB Hosts 13 is connected with the master control output end through the first wire 14.

[0041] The embodiment one adopts two groups of USB Hosts 13, but is not limited to this, one group of USB Hosts 13 is also expanded through the first USB HUB 12 to meet the USB function of the master control board 1 itself.

[0042] As shown in Figure 2As shown, the slave board 2 is provided with a slave MCU 21, a second wire 23 and a third wire 24, the slave MCU 21 is connected with the second USB HUB 22, one end of the second wire 23 is connected with the slave input end, the other end of the second wire 23 is connected to the slave output end through the second USB HUB 22, the two ends of the third wire 24 are respectively connected with the slave input end and the slave output end, the second wire 23 and the third wire 24 are cross-wired at the slave output end, one group of USB Host 13 is connected with the third wire 24, and the other USB Host 13 is connected with the second wire 23.

[0043] The architecture of each slave board 2 in the embodiment one is the same, and the slave MCU 21 of each slave board 2 can be implemented by different types of MCUs to realize different functions, so that different external devices can be connected in communication with the slave board 2. Specifically, for other external devices using non-USB interfaces, such as HDMI, DisplayPort and the like, an interface conversion circuit can also be provided on the slave board 2, and the slave MCU 21 is used for scheduling to ensure normal communication between different external devices and the EMS master device.

[0044] The embodiment one uses USB2.0 protocol for communication, which is based on the seven-layer architecture of USB2.0. Since the embodiment one sets two groups of USB Host 13, and each slave board 2 is provided with a slave MCU 21 and connected to the next layer of slave board 2 through the second USB HUB 22. Among them, the MCU of each slave board 2 and the second USB HUB 22 belong to a separate layer architecture in the calculation level. Therefore, each group of USB Host 13 can connect five slave boards 2 externally, and one group of USB Host 13 in the embodiment one has been expanded by the first USB HUB 12, so that this group of USB Host 13 can only connect four slave boards 2 externally. For example, Figure 1 and Figure 2 As shown, the embodiment one can at most connect nine slave boards 2 externally in the case of setting two groups of USB Host 13 and one group of USB Host 13 has been expanded in the master control board 1, and each slave board 2 can be connected with the corresponding external device.

[0045] As shown, Figure 2 As shown, the master control board 1 is provided with a power supply circuit 15, each slave board 2 is provided with a conversion circuit 26 and a fourth wire 25, the output end of the power supply circuit 15 is connected with the master control output end through the first wire 14, the input of the conversion circuit 26 is connected with the slave control input end and the slave control output end through the fourth wire 25, and the output end of the conversion circuit 26 is connected with the slave MCU 21.

[0046] When the master output end of the master board 1 is connected with the slave input end of the slave board 2, the power supply circuit 15 can supply power for each slave board 2 by the first wire 14 and the fourth wire 25 in cooperation with the conversion circuit 26, the structure is simple, the external wiring is reduced, and the aesthetic appearance is improved.

[0047] As shown in Figure 2 , the power supply circuit 15 is a 12V power supply circuit 15, and the conversion circuit 26 is a 12V to 5V circuit. In example one, the 12V power supply of the master board 1 is converted into the 5V power supply required by the slave board 2, which is beneficial to improve the stability of the operation of the slave board 2. Of course, in other embodiments, the voltage can also be adjusted according to actual needs.

[0048] As shown in Figure 3 and Figure 4 , it further comprises a first housing 3, the master board 1 is arranged in the first housing 3, and the first housing 3 is provided with a master output contact 31, and the master output end is connected with the master output contact 31.

[0049] In example one, the master board 1 is arranged in the first housing 3, which can protect the master board 1 and ensure the stability of the operation of the master board 1. The master output contact 31 outside the first housing 3 is connected with the slave board 2, and the master output contact 31 is used to transmit the USB signal and power supply to the functional module.

[0050] As shown in Figure 3 and Figure 5 , it further comprises a second housing 4, each slave board 2 is arranged in the second housing 4, the second housing 4 is provided with a slave input contact 41 and a slave output contact 42, the slave input end and the slave output end are connected with the slave output contact 42 and the slave output contact 42 respectively, and the slave output contact 42 and the slave output contact 42 are arranged on the left and right sides of the second housing 4 respectively.

[0051] In example two, the slave board 2 is arranged in the second housing 4, which can protect the slave board 2 and ensure the stability of the operation of the slave board 2. For other external devices using non-USB interface 5, such as HDMI, DisplayPort and other non-USB interface 5, an interface conversion circuit can also be arranged on the slave board 2 and dispatched through the slave MCU 21, and the second housing 4 can be provided with a corresponding non-USB physical interface, so that the external device can be directly plugged on the second housing 4.

[0052] Further, the first shell 3 and the second shell 4, or two adjacent second shells 4 can be connected by snap-fitting the clamping grooves. After snap-fitting, the master control output contact 31 of the first shell 3 is in contact with the slave control input contact 41 of the second shell 4, and in the two adjacent second shells 4, the slave control output contact 42 of the former second shell 4 is in contact with the slave control input contact 41 of the latter second shell 4. The overall structure is more compact, improving the convenience during deployment.

[0053] As shown in Figure 2 , the first USB HUB 12 in embodiment one is a 1-to-4 USB HUB, but is not limited thereto, one of the USB HUBs is connected to the slave board 2 as a group of USB Hosts 13, and the remaining three USB HUBs are used to meet the USB function requirements of the slave board 2 itself. Since one group of USB Hosts 13 has been expanded by a 1-to-4 USB HUB, this group of USB Hosts 13 can only connect four slave boards 2 externally.

[0054] As shown in Figure 2 , the second USB HUB 22 in embodiment one is a 1-to-2 USB HUB, but is not limited thereto, one of the USB HUBs of the current slave board 2 is connected to one group of USB Hosts 13 of the slave board 2, and serves as the USB Host 13 of the current slave board 2 and one of the USB HUBs of the next level slave board 2. The other USB HUB of the current slave board 2 is connected to the slave MCU 21, which is responsible for USB communication between the external devices connected to the current slave board 2 and the master board 1, and also coordinates and schedules the USB signal transmission between the current slave board 2 and the next level slave board 2 through the second USB HUB 22, ensuring stable data transmission between the master board 1 and each slave board 2 under the USB2.0 seven-layer architecture.

[0055] Embodiment two:

[0056] The difference between embodiment two and embodiment one is that, as shown in Figure 6 and Figure 7 , one group of USB Hosts 131 in the master board 1 of embodiment two is expanded by a 1-to-2 USB HUB to form a second group of USB Hosts 13 and a third group of USB Hosts 13, and the three groups of USB Hosts 13 are connected to the master output end through the first wire 14.

[0057] Each slave board 2 is provided with a second wire 23 and two third wires 24, one end of the second wire 23 is connected with the slave input end, the other end of the second wire 23 is connected to the slave output end through the second USB HUB 22, two ends of the two third wires 24 are connected with the slave input end and the slave output end respectively, the second wire 23 and the third wire 24 are cross-wired at the slave output end.

[0058] Of course, based on the seven-layer architecture of USB2.0, the first group of USB Host 13 connects five slave boards 2 externally, the second group of USB Host 13 and the third group of USB Host 13 can only connect four slave boards 2 externally. Therefore, the three groups of USB Host 13 of the master control board 1 in embodiment two can at most connect thirteen slave boards 2 externally, and the user can select different slave boards 2 to correspond to different external devices according to actual needs, and the use is flexible.

[0059] The orientation terms mentioned in the specification are defined with respect to the structure shown in the drawings, which are relative concepts, so it is possible to change accordingly according to different positions and different use states. Therefore, these or other orientation terms should not be interpreted as limiting terms.

[0060] The above is only the preferred embodiment of the present application, and is not a limitation on the design of the present application. Any equivalent changes made according to the key design of the present application shall fall within the scope of protection of the present application.

Claims

1. A USB architecture, characterized in that: Includes a main control board and multiple slave control boards; The main control board is equipped with a first USB HUB, a main control output terminal, and multiple USB Hosts. One group of USB Hosts is connected to the main control output terminal through the first USB HUB, and the other groups of USB Hosts are connected to the main control output terminal. Each slave control board is equipped with a second USB hub, multiple wires, a slave control input terminal, and a slave control output terminal. One end of one wire is connected to the slave control input terminal, and the other end of another wire is connected to the slave control output terminal through the second USB hub. The two ends of the other wires are connected to the slave control input terminal and the slave control output terminal respectively. One wire and the other wires are cross-wired at the slave control output terminal. Multiple USB hosts are connected to the second USB hub through multiple wires. The master control output terminal of the master control board is connected to the slave control input terminal of the slave control board. In two adjacent slave control boards, the slave control output terminal of the first slave control board is connected to the slave control input terminal of the second slave control board. Multiple slave control boards are arranged in a row.

2. The USB architecture as described in claim 1, characterized in that: The main control board is equipped with a main control MCU, two sets of USB Hosts and a first wire. The two sets of USB Hosts are connected to the main control MCU respectively. One set of USB Hosts is connected to the main control output terminal through the first USB HUB and the first wire, and the other set of USB Hosts is connected to the main control output terminal through the first wire.

3. A USB architecture as described in claim 2, characterized in that: The slave control board is equipped with a slave control MCU, a second wire, and a third wire. The slave control MCU is connected to a second USB hub. One end of the second wire is connected to the slave control input terminal, and the other end of the second wire is connected to the slave control output terminal through the second USB hub. The two ends of the third wire are connected to the slave control input terminal and the slave control output terminal, respectively. The second wire and the third wire are cross-wired at the slave control output terminal. One set of USB hosts is connected to the third wire, and the other USB host is connected to the second wire.

4. A USB architecture as described in claim 3, characterized in that: The main control board is equipped with a power supply circuit, and each slave control board is equipped with a conversion circuit and a fourth wire. The output terminal of the power supply circuit is connected to the main control output terminal through the first wire, and the input of the conversion circuit is connected to the slave control input terminal and the slave control output terminal through the fourth wire. The output terminal of the conversion circuit is connected to the slave control MCU.

5. A USB architecture as described in claim 4, characterized in that: The power supply circuit is a 12V power supply circuit, and the conversion circuit is a 12V to 5V circuit.

6. A USB architecture as described in claim 1, characterized in that: It also includes a first housing, the main control board is disposed inside the first housing, the first housing is provided with main control output contacts, and the main control output terminal is connected to the main control output contacts.

7. A USB architecture as described in claim 6, characterized in that: It also includes a second housing, in which each slave control board is disposed. The second housing is provided with slave control input contacts and slave control output contacts. The slave control input terminal and slave control output terminal are respectively connected to the slave control output contacts and slave control output contacts. The slave control output contacts and slave control output contacts are respectively disposed on the left and right sides of the second housing.

8. A USB architecture as described in claim 1, characterized in that: The first USB hub is a 1-to-4 USB hub.

9. A USB architecture as described in claim 1, characterized in that: The second USB hub is a 1-to-2 USB hub.

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