Universal serial bus hub device and universal serial bus hub equipment

Abstract

The present invention discloses a universal serial bus hub device and a universal serial bus hub equipment. The universal serial bus hub device comprises: a hub and a single chip microcomputer, the hub and the single chip microcomputer are connected, the single chip microcomputer can control the power supply of the downlink port of the universal serial bus and the power supply of the hub main control, and can test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus. Through the above method, it is possible to improve the speed of the interface bandwidth by adopting the four-to-sixteen interface bandwidth method, and improve the test efficiency of the universal serial bus by the improved interface bandwidth speed.

Description

Technical Field

[0001] The present invention relates to the field of storage technology, and in particular to a universal serial bus hub device and a universal serial bus hub equipment. Background Art

[0002] In the manufacturing process of storage disks and memory cards, there are many testing processes using PCs (personal computers). One of the testing processes is to write data to the storage disk or memory card through a PC and then read it out for verification. Basically, every mobile storage disk or memory card needs to be tested in this testing process.

[0003] The hub solutions commonly used in the market for testing are usually one-to-sixteen 2.0 HUBs (hubs) with an interface bandwidth of only 40MB (MByte). Even if it is a one-to-sixteen 3.0 HUB plugged into a 3.0 host, the interface bandwidth is 40MB+500MB. This is because the internal structure of the USB (Universal Serial Bus) 3.0 hub is that the USB 2.0 devices use the 2.0 bandwidth, and the USB 3.0 devices use the 3.0 bandwidth. Therefore, the test speed of the USB 2.0 devices will be limited by the interface bandwidth.

[0004] However, the inventors have found that the prior art has at least the following problems:

[0005] The existing USB hub solutions, when tested, are generally one-to-sixteen 2.0 hubs or 3.0 hubs with an interface bandwidth of only 40 Mbps. The test speed is limited by the interface bandwidth, resulting in low test efficiency for the USB. Summary of the invention

[0006] In view of this, the purpose of the present invention is to propose a universal serial bus hub device and a universal serial bus hub equipment, which can improve the speed of the interface bandwidth by adopting a four-to-sixteen interface bandwidth method, and improve the test efficiency of the universal serial bus through the improved interface bandwidth speed.

[0007] According to one aspect of the present invention, there is provided a universal serial bus hub device, comprising:

[0008] Hubs and microcontrollers;

[0009] The hub is connected to the single chip microcomputer;

[0010] The single chip microcomputer is used to control the power supply of the downlink port of the universal serial bus and the power supply of the hub master, and is used to test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus.

[0011] Wherein, the hub comprises:

[0012] Serial port;

[0013] The serial port is used for bidirectional communication between the single chip microcomputer and the computer host for testing the current and voltage test data of the fifteen ports of the universal serial bus and the DC input voltage test data of the universal serial bus.

[0014] Wherein, the hub comprises:

[0015] port;

[0016] The port is used to bidirectionally communicate the interactive data between the hub and the single-chip microcomputer with a computer host.

[0017] Wherein, the universal serial bus hub device further includes:

[0018] Analog-to-digital converters;

[0019] The analog-to-digital converter is arranged on the hub;

[0020] The analog-to-digital converter is used to start the detection channel voltage when the default input / output initialization is low level when the hub is powered on. When the voltage value of the started detection channel voltage is not lower than a preset threshold, it is used to remind the occurrence of overvoltage by keeping the metal oxide semi-field effect transistor control pin at a low level.

[0021] Wherein, the single chip microcomputer comprises:

[0022] Low dropout linear regulator;

[0023] The low voltage dropout linear regulator is independently powered, and the maximum input voltage is 12 volts.

[0024] Wherein, the low voltage difference linear regulator is a power adapter, the power adapter is independently powered, and the maximum input voltage is 12 volts.

[0025] Wherein, the universal serial bus hub device further includes:

[0026] Controller;

[0027] The controller is arranged on the hub;

[0028] The controller is used to control the opening of each control pin in sequence when the metal oxide semi-conductor field effect transistor is turned on. After each control pin is turned on, a preset time is delayed. After PB8 controls M1 to be turned on in sequence, the hub is powered on. Then, M5 is turned on through PB2 after a preset delay. At this time, the computer host recognizes the universal serial bus device of the port. Then, M6 is turned on through PC13 after a preset delay. At this time, the computer host recognizes another universal serial bus device, and so on.

[0029] Wherein, the universal serial bus hub device further includes:

[0030] Resettable fuse;

[0031] The resettable fuse is arranged on the hub;

[0032] The resettable fuse is used to provide a general overcurrent protection function and a programmed current limiting function for the universal serial bus.

[0033] According to another aspect of the present invention, a universal serial bus hub device is provided, comprising any one of the universal serial bus hub devices described above.

[0034] It can be found that in the above scheme, the universal serial bus hub device may include a hub and a single-chip microcomputer, the hub and the single-chip microcomputer are connected, the single-chip microcomputer can control the power supply of the downstream port of the universal serial bus and the power supply of the hub main control, and can test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus. It can achieve the improvement of the interface bandwidth speed by adopting the four-to-sixteen interface bandwidth mode, and improve the test efficiency of the universal serial bus by the improved interface bandwidth speed.

[0035] Further, in the above scheme, the hub may include a serial port, which can transmit the test data of the current and voltage of the fifteen ports of the universal serial bus tested by the single-chip computer and the test data of the DC input voltage of the universal serial bus to the computer host for bidirectional communication. The advantage of this is that it can realize bidirectional communication with the computer host.

[0036] Furthermore, in the above scheme, the hub may include a port, and the port can bidirectionally communicate the interactive data between the hub and the single-chip microcomputer with the computer host. The advantage of this is that bidirectional communication with the computer host can be achieved.

[0037] Furthermore, in the above scheme, the universal serial bus hub device may also include an analog-to-digital converter, which is arranged on the hub. The analog-to-digital converter can start the detection channel voltage when the default input / output initialization is low when the hub is powered on. When the voltage value of the started detection channel voltage is not lower than a preset threshold, the overvoltage condition is reminded by keeping the metal oxide semi-conductor field effect transistor control pin at a low level. The advantage of this is that it can provide an overvoltage protection function by reminding the occurrence of an overvoltage condition, thereby ensuring the test safety of the universal serial bus interface.

[0038] Furthermore, in the above scheme, the single chip microcomputer may include a low voltage difference linear regulator, which can be independently powered, and the maximum input voltage is 12 volts. This has the advantage of ensuring the normal operation of the single chip microcomputer.

[0039] Furthermore, in the above scheme, the low voltage difference linear regulator can be a power adapter, which is independently powered and has a maximum input voltage of 12 volts. This has the advantage of ensuring the normal operation of the single-chip computer 12.

[0040] Furthermore, in the above scheme, the universal serial bus hub device may also include a controller, which is arranged on the hub. The controller can control each control pin to be turned on in sequence when the metal oxide semi-conductor field effect transistor is turned on, and each control pin is delayed for a preset time after being turned on. After PB8 controls M1 to be turned on in the sequence, the hub 11 is powered on, and then M5 is turned on through PB2 after a preset delay. At this time, the computer host identifies the universal serial bus device of the port, and then controls the turning on of M6 through PC13 after a preset delay. At this time, the computer host identifies another universal serial bus device, and so on. The advantage of this is that the computer host can identify the universal serial bus device in the order of power on, thereby facilitating the determination of the port position of the universal serial bus device, and because the disks are not put on at the same time, the traditional one-to-sixteen interface bandwidth can be avoided, which causes the central processor to occupy too much space and cause the system to freeze.

[0041] Furthermore, in the above scheme, the universal serial bus hub device also includes a resettable fuse, which is arranged on the hub. The resettable fuse can provide the universal serial bus with a normal overcurrent protection function and a programmed current limiting function. The advantage of this is that by providing the universal serial bus with a normal overcurrent protection function, it is possible to prompt the user that the current exceeds the standard, and by providing the universal serial bus with a programmed current limiting function, it is possible to prevent the situation in which a short circuit in the universal serial bus device generates a large current that burns the universal serial bus device or affects the normal operation of the universal serial bus device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a structural schematic diagram of an embodiment of a universal serial bus hub device of the present invention;

[0044] Figure 2 is a structural schematic diagram of another embodiment of a universal serial bus hub device of the present invention;

[0045] Figure 3 It is a structural schematic diagram of another embodiment of the universal serial bus hub device of the present invention;

[0046] Figure 4 It is a structural schematic diagram of another embodiment of the universal serial bus hub device of the present invention;

[0047] Figure 5 It is a schematic diagram of an example of a universal serial bus interface involved in the universal serial bus hub device of the present invention;

[0048] Figure 6 It is a schematic diagram of an example of an interface of a hub involved in the universal serial bus hub device of the present invention. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0050] The invention provides a universal serial bus concentrator device, which can improve the test efficiency of the universal serial bus.

[0051] See also Figure 1 , Figure 1 1 is a schematic diagram of a structure of a universal serial bus hub device according to an embodiment of the present invention. In this embodiment, the universal serial bus hub device 10 includes a hub 11 and a single chip microcomputer 12.

[0052] The hub 11 is connected to the single chip computer 12 .

[0053] The single chip microcomputer 12 is used to control the power of the downlink port of the universal serial bus and the power of the hub 11, and to test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus.

[0054] Optionally, the hub 11 may include:

[0055] Serial port 111;

[0056] The serial port 111 is used for bidirectional communication between the single chip microcomputer 12 and the host computer for testing the current and voltage test data of the fifteen ports of the universal serial bus and the DC input voltage test data of the universal serial bus. The advantage of this is that bidirectional communication with the host computer can be achieved.

[0057] In this embodiment, the serial port 111 may be an R232 interface, which is not limited in the present invention.

[0058] Optionally, the hub 11 may include:

[0059] Port 112;

[0060] The port 112 is used for bidirectional communication between the interactive data between the hub 11 and the single-chip microcomputer 12 and the host computer. This has the advantage of enabling bidirectional communication with the host computer.

[0061] In this embodiment, the port 112 may be a universal serial bus port, which is not limited in the present invention.

[0062] It can be found that in this embodiment, the universal serial bus hub device may include a hub and a single-chip microcomputer, the hub and the single-chip microcomputer are connected, the single-chip microcomputer can control the power supply of the downstream port of the universal serial bus and the power supply of the hub main control, and can test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus. It can achieve the improvement of the interface bandwidth speed by adopting a four-to-sixteen interface bandwidth method, and improve the test efficiency of the universal serial bus through the improved interface bandwidth speed.

[0063] Furthermore, in this embodiment, the hub may include a serial port, which can communicate bidirectionally with the computer host the test data of the microcontroller testing the current and voltage of the fifteen ports of the universal serial bus and the test data of the DC input voltage of the universal serial bus. The advantage of this is that it can achieve bidirectional communication with the computer host.

[0064] Furthermore, in this embodiment, the hub may include a port, which can bidirectionally communicate the interactive data between the hub and the single-chip microcomputer with the computer host. This has the advantage of enabling bidirectional communication with the computer host.

[0065] See also Figure 2 , Figure 2 1 is a schematic diagram of another embodiment of a universal serial bus hub device according to the present invention. Different from the previous embodiment, the universal serial bus hub device 20 in this embodiment further includes an analog-to-digital converter 21 .

[0066] The analog-to-digital converter 21 is disposed on the hub 11 .

[0067] The analog-to-digital converter 21 is used to start the detection channel voltage when the default IO (Input / Output) initialization is low when the hub 11 is powered on. When the voltage value of the started detection channel voltage is not lower than a preset threshold, the MOS (Metal-Oxide-Semiconductor Field-Effect Transistor) control pin is kept at a low level to remind of an overvoltage situation. The advantage of this is that it can provide an overvoltage protection function by reminding of an overvoltage situation, thereby ensuring the test safety of the universal serial bus interface.

[0068] In this embodiment, when the hub 11 is powered on, the default IO initialization is low level. At this time, all the metal oxide semi-field effect transistors M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11, M12, M13, M14, M15, M16, M17, M18, M19 and M20 on the power control of the hub 11 master and the downlink port of the universal serial bus are in the off state, and then the detection channel voltage is started through the analog-to-digital converter 21. When the voltage value of the started detection channel voltage is not lower than a preset threshold value, such as 5.5 volts, the metal oxide semi-field effect transistor control pin is kept at a low level. At this time, the device is not powered on, and the hub 11 master is also not powered on. The IO output high level connected to the corresponding LED (light emitting diode) is controlled to turn off the green LEDs D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15 and D16 on the side of the universal serial bus female socket, and the IO output high and low level cycles connected to the corresponding LED are controlled to make the red LED on the side of the universal serial bus female socket flash. The red LEDs D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31 and D32 on the side of the universal serial bus female socket are used to remind overvoltage, thereby providing overvoltage protection function.

[0069] In this embodiment, the metal oxide semi-conductor field effect transistor can be driven by a transistor, and all control pins can be driving pins of the transistor including PB8, PB2, PC13, PC14, PC15, PE9, PB7, PB6, PD7, PD4, PB12, PE15, PE14, PE13, PE12, PD11, PD12, PD13, P14, PD15 are all at low level.

[0070] Optionally, the single chip computer 12 may include:

[0071] Low Dropout Regulator (LDO) 121;

[0072] The low voltage difference linear regulator 121 is independently powered, and the maximum input voltage is 12 volts. This has the advantage of ensuring the normal operation of the single chip computer 12 .

[0073] Optionally, the low voltage difference linear regulator 121 can be a power adapter, which is independently powered and has a maximum input voltage of 12 volts. This has the advantage of ensuring the normal operation of the single-chip computer 12.

[0074] In this embodiment, the single-chip computer 12 can be independently powered by a low voltage difference linear regulator, and the maximum input voltage is 12V to ensure the normal operation of the single-chip computer 12. It can also be modified to a higher voltage LDO or DC-DC (power adapter) for power supply. When it is detected that the startup detection channel voltage is lower than the preset threshold, such as 4.7 volts, the MOS control pin can output a high level. At this time, the back-end device is powered normally and can work, but PD3 outputs a low level to light up D35, reminding the user that the power supply voltage is too low and the customer needs to replace the power adapter.

[0075] It can be found that in this embodiment, the universal serial bus hub device may also include an analog-to-digital converter, which is arranged on the hub. The analog-to-digital converter can start the detection channel voltage when the default input / output initialization is low when the hub is powered on. When the voltage value of the started detection channel voltage is not lower than the preset threshold, the overvoltage condition is reminded by keeping the metal oxide semi-conductor field effect transistor control pin at a low level. The advantage of this is that it can provide overvoltage protection function by reminding the occurrence of overvoltage condition, thereby ensuring the test safety of the universal serial bus interface.

[0076] Furthermore, in the present embodiment, the single chip microcomputer may include a low voltage dropout linear regulator, which may be independently powered, and the maximum input voltage is 12 volts. This has the advantage of ensuring the normal operation of the single chip microcomputer.

[0077] Furthermore, in the present embodiment, the low voltage difference linear regulator may be a power adapter, which is independently powered and has a maximum input voltage of 12 volts. This has the advantage of ensuring the normal operation of the single chip computer 12.

[0078] See also Figure 3 , Figure 3 1 is a schematic diagram of the structure of another embodiment of a universal serial bus hub device of the present invention. Different from the previous embodiment, the universal serial bus hub device 30 of this embodiment further includes: a controller 31.

[0079] The controller 31 is disposed on the hub 11 .

[0080] The controller 31 is used to control the opening of each control pin in sequence when the metal oxide semi-conductor field effect transistor is turned on. After each control pin is turned on, a preset time is delayed. After PB8 controls M1 to be turned on in sequence, the hub 11 is powered on. Then, after a preset time is delayed, M5 is turned on through PB2. At this time, the computer host identifies the universal serial bus device of the port. Then, after a preset time is delayed, M6 is turned on through PC13. At this time, the computer host identifies another universal serial bus device, and so on. The advantage of this is that the computer host can identify the universal serial bus device in the order of power on, thereby facilitating the determination of the port position of the universal serial bus device. In addition, because the disks are not put on at the same time, the traditional one-to-sixteen interface bandwidth can be avoided, which causes the CPU (central processing unit) to occupy too much and cause the system to freeze.

[0081] It can be found that in this embodiment, the universal serial bus hub device can also include a controller, which is arranged on the hub. The controller can control each control pin to be turned on in sequence when the metal oxide semi-conductor field effect transistor is turned on, and each control pin is delayed for a preset time after being turned on. After PB8 controls M1 to be turned on in sequence, the hub 11 is powered on, and then M5 is turned on through PB2 after a preset delay. At this time, the computer host identifies the universal serial bus device of the port, and then controls the opening of M6 through PC13 after a preset delay. At this time, the computer host identifies another universal serial bus device, and so on. The advantage of this is that it can be realized by the computer host that the universal serial bus device is identified in the order of power on, thereby facilitating the determination of the port position of the universal serial bus device, and because the disks are not put on at the same time, the traditional one-to-sixteen interface bandwidth can be avoided, which causes the central processor to occupy too much and cause the system to freeze.

[0082] See also Figure 4 , Figure 4 1 is a schematic diagram of the structure of another embodiment of the universal serial bus hub device of the present invention. Different from the previous embodiment, the universal serial bus hub device 40 of this embodiment further includes: a self-resetting fuse 41.

[0083] The resettable fuse 41 is disposed on the hub 11 .

[0084] The resettable fuse 41 is used to provide the universal serial bus with a general overcurrent protection function and a programmed current limiting function. The advantage of this is that by providing the universal serial bus with a general overcurrent protection function, the user can be prompted that the current exceeds the standard. By providing the universal serial bus with a programmed current limiting function, the situation in which a large current is generated when the universal serial bus device is short-circuited and burns the universal serial bus device or affects the normal operation of the universal serial bus device can be prevented.

[0085] In this embodiment, the universal serial bus USB1 can provide a normal overcurrent protection function through the resettable fuse 41. When overcurrent occurs, F1 is disconnected, and the current passes through R14 and D34. By lighting up D34, the user is informed that the current exceeds the limit.

[0086] In this embodiment, the 15 USB ports of the universal serial bus USB2-USB16 can provide a programmable current limiting function, and the 15 self-resetting fuses 41 F2-F16 provide a double insurance function.

[0087] In this embodiment, the universal serial bus USB2 can obtain the port voltage through ADC1_1 and then check the difference between it and ADC1_0 to calculate the circuit. The calculation formula is USB2_A=(ADC1_0*2-ADC1_1*2) / (M6_R (MOS internal resistance)+F2_R (self-recovery fuse internal resistance)).

[0088] It can be found that in this embodiment, the universal serial bus hub device also includes a resettable fuse, which is arranged on the hub. The resettable fuse can provide the universal serial bus with a normal overcurrent protection function and a programmed current limiting function. The advantage of this is that by providing the universal serial bus with a normal overcurrent protection function, it is possible to prompt the user that the current exceeds the standard, and by providing the universal serial bus with a programmed current limiting function, it is possible to prevent the situation in which a short circuit in the universal serial bus device generates a large current that burns the universal serial bus device or affects the normal operation of the universal serial bus device.

[0089] The present invention also provides a universal serial bus hub device, which includes a universal serial bus hub device. The universal serial bus hub device is the universal serial bus hub device in the above-mentioned embodiment. The various functional modules of the universal serial bus hub device can respectively execute the functions and connection relationships of the corresponding functional modules of the universal serial bus hub device in the above-mentioned embodiment. Therefore, the various functional modules of the universal serial bus hub device are not described in detail here. Please refer to the corresponding description above for details.

[0090] See also Figure 5 and Figure 6 , Figure 5 is a schematic diagram of an example of a universal serial bus interface involved in the universal serial bus hub device of the present invention, Figure 6This is an example schematic diagram of the interface of the hub involved in the universal serial bus hub device of the present invention. It should be noted that the universal serial bus runs a commonly used algorithm for realizing the universal serial bus interface function, and the hub runs a commonly used algorithm for realizing the hub interface function. The implementation of the technical solution of the present invention does not require any improvement to the interface program of the universal serial bus or the interface program of the hub, and this is hereby declared.

[0091] It can be found that in the above scheme, the universal serial bus hub device may include a hub and a single-chip microcomputer, the hub and the single-chip microcomputer are connected, the single-chip microcomputer can control the power supply of the downstream port of the universal serial bus and the power supply of the hub main control, and can test the current and voltage of the fifteen ports of the universal serial bus, as well as the DC input voltage of the universal serial bus. It can achieve the improvement of the interface bandwidth speed by adopting the four-to-sixteen interface bandwidth mode, and improve the test efficiency of the universal serial bus by the improved interface bandwidth speed.

[0092] Further, in the above scheme, the hub may include a serial port, which can transmit the test data of the current and voltage of the fifteen ports of the universal serial bus tested by the single-chip computer and the test data of the DC input voltage of the universal serial bus to the computer host for bidirectional communication. The advantage of this is that it can realize bidirectional communication with the computer host.

[0093] Furthermore, in the above scheme, the hub may include a port, and the port can bidirectionally communicate the interactive data between the hub and the single-chip microcomputer with the computer host. The advantage of this is that bidirectional communication with the computer host can be achieved.

[0094] Furthermore, in the above scheme, the universal serial bus hub device may also include an analog-to-digital converter, which is arranged on the hub. The analog-to-digital converter can start the detection channel voltage when the default input / output initialization is low when the hub is powered on. When the voltage value of the started detection channel voltage is not lower than a preset threshold, the overvoltage condition is reminded by keeping the metal oxide semi-conductor field effect transistor control pin at a low level. The advantage of this is that it can provide an overvoltage protection function by reminding the occurrence of an overvoltage condition, thereby ensuring the test safety of the universal serial bus interface.

[0095] Furthermore, in the above scheme, the single chip microcomputer may include a low voltage difference linear regulator, which can be independently powered, and the maximum input voltage is 12 volts. This has the advantage of ensuring the normal operation of the single chip microcomputer.

[0096] Furthermore, in the above scheme, the low voltage difference linear regulator can be a power adapter, which is independently powered and has a maximum input voltage of 12 volts. This has the advantage of ensuring the normal operation of the single-chip computer 12.

[0097] Furthermore, in the above scheme, the universal serial bus hub device may also include a controller, which is arranged on the hub. The controller can control each control pin to be turned on in sequence when the metal oxide semi-conductor field effect transistor is turned on, and each control pin is delayed for a preset time after being turned on. After PB8 controls M1 to be turned on in the sequence, the hub 11 is powered on, and then M5 is turned on through PB2 after a preset delay. At this time, the computer host identifies the universal serial bus device of the port, and then controls the turning on of M6 through PC13 after a preset delay. At this time, the computer host identifies another universal serial bus device, and so on. The advantage of this is that the computer host can identify the universal serial bus device in the order of power on, thereby facilitating the determination of the port position of the universal serial bus device, and because the disks are not put on at the same time, the traditional one-to-sixteen interface bandwidth can be avoided, which causes the central processor to occupy too much space and cause the system to freeze.

[0098] Furthermore, in the above scheme, the universal serial bus hub device also includes a resettable fuse, which is arranged on the hub. The resettable fuse can provide the universal serial bus with a normal overcurrent protection function and a programmed current limiting function. The advantage of this is that by providing the universal serial bus with a normal overcurrent protection function, it is possible to prompt the user that the current exceeds the standard, and by providing the universal serial bus with a programmed current limiting function, it is possible to prevent the situation in which a short circuit in the universal serial bus device generates a large current that burns the universal serial bus device or affects the normal operation of the universal serial bus device.

[0099] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device implementation described above is only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0100] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0101] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0103] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A universal serial bus hub device, characterized in that: include: Hubs and microcontrollers; The hub is connected to the single chip microcomputer; The single chip microcomputer is used to control the power supply of the downlink port of the universal serial bus and the power supply of the hub master, and to test the current and voltage of the fifteen ports of the universal serial bus, and to test the DC input voltage of the universal serial bus; The hub comprises: Serial port; The serial port is used to communicate bidirectionally with a host computer the test data of the current and voltage of the fifteen ports of the universal serial bus tested by the single-chip microcomputer and the test data of the DC input voltage of the universal serial bus; The hub comprises: port; The port is used to bidirectionally communicate the interactive data between the hub and the single-chip microcomputer with a host computer; The universal serial bus hub device further comprises: Controller; The controller is arranged on the hub; The controller is used to control the opening of each control pin in sequence when the MOSFET is turned on. After each control pin is turned on, a preset time is delayed. After the MOSFET M1 is turned on by the driving pin PB8 of the sequencing transistor, the hub is powered on. Then, the MOSFET M5 is turned on by the driving pin PB2 of the transistor after a preset delay. At this time, the computer host recognizes the universal serial bus device of the port. Then, the MOSFET M6 is turned on by the driving pin PC13 of the transistor after a preset delay. At this time, the computer host recognizes another universal serial bus device.

2. The universal serial bus hub device according to claim 1, wherein: The universal serial bus hub device further comprises: Analog-to-digital converters; The analog-to-digital converter is arranged on the hub; The analog-to-digital converter is used to start the detection channel voltage when the default input / output initialization is low level when the hub is powered on. When the voltage value of the started detection channel voltage is not lower than a preset threshold, it is used to remind the occurrence of overvoltage by keeping the metal oxide semi-field effect transistor control pin at a low level.

3. The universal serial bus hub device according to claim 1, wherein: The single chip microcomputer comprises: Low dropout linear regulator; The low voltage dropout linear regulator is independently powered, and the maximum input voltage is 12 volts.

4. The universal serial bus hub device as claimed in claim 3, characterized in that: The low voltage difference linear regulator is a power adapter, which is independently powered and has a maximum input voltage of 12 volts.

5. The universal serial bus hub device as claimed in claim 1, characterized in that: The universal serial bus hub device further comprises: Resettable fuse; The resettable fuse is arranged on the hub; The resettable fuse is used to provide a general overcurrent protection function and a programmed current limiting function for the universal serial bus.

6. A universal serial bus hub device, characterized in that: It comprises the universal serial bus hub device as claimed in any one of claims 1 to 5.

Images