CN207516987U - It is a kind of to support the reliability of multi-USB interface equipment is same to survey device - Google Patents
It is a kind of to support the reliability of multi-USB interface equipment is same to survey device Download PDFInfo
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- CN207516987U CN207516987U CN201721318310.3U CN201721318310U CN207516987U CN 207516987 U CN207516987 U CN 207516987U CN 201721318310 U CN201721318310 U CN 201721318310U CN 207516987 U CN207516987 U CN 207516987U
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Abstract
The utility model discloses a kind of reliability for supporting multi-USB interface equipment with device is surveyed, which includes：Multichannel programmable power supply control module, USB multichannels link block, multi channel currents monitoring module, microcontroller and USB interface plug-in unit.The support multi-USB interface equipment dependability is same to survey device, it can work at 40 DEG C and 125 DEG C, with working power, the ability for the operating current for controlling the cut-out and connection of USB interface device and PC machine and each USB interface device being detected in the USB interface device course of work that can control USB interface device, there is the reliability communicated when realizing long under high/low temperature to multi-USB interface equipment with survey ability.
Description
Technical field
The utility model is related to the reliability test device of USB interface device, particularly a kind of support multi-USB interface equipment
Reliability is the same as the device of measurement equipment.
Background technology
With rapid development of information technology, computer and peripheral equipment communication importance are increasingly enhanced, and transmission speed is fast, even
It is the most common interface for realizing communication to connect easy USB interface, with following characteristics：
● easy to use, hot plug and plug-and-play feature；
● transmission speed is fast；
● support asynchronous and synchronous transmission；
● data transmission is reliable；
● connection is flexible；
● independently-powered, little power consumption；
● interface flexible is convenient, is easy to the functions such as extension.
With the extensive use of USB interface, more and more equipment carry USB interface, but part USB interface device needs
Prolonged application is wanted under the adverse circumstances such as high temperature, low temperature, and enormous amount sometimes.Therefore these USB interface devices are assessed
Performance is very necessary, this requires test equipment to have following characteristic：
1st, work when test equipment also can carry out long under high temperature and low temperature；
2nd, test equipment needs to support multiple USB interface devices with surveying, the single each USB interface device of examination to be avoided to spend
Plenty of time.
But the performance very very severe of multi-USB interface equipment is examined in short-term, because being susceptible to very in test process
More problems：
First, these equipment are put into inside incubator, numerous USB data lines is connected on PC, and data line is various and miscellaneous
Disorderly, once indivedual USB interface device tests go wrong, query facility is inconvenient.
Secondly, it is powered using HUB and PC machine, operating voltage fixation is immutable, the problem of not can be switched there are power supply, surveys
The operating voltage of USB interface device can not flexibly be switched during examination, it is impossible to examine USB interface device under different operating voltage
Performance.
Third, numerous USB data lines pass through incubator to connect PC machine, do not only take up the inner space of incubator, and easily draw
There are gap between rising inside and outside incubator, incubator is not easy to ensure constant temperature, influences performance evaluation result.
Therefore, a kind of reliability that can realize USB interface device with survey device there is an urgent need to.
Utility model content
How technical problem to be solved in the utility model provides a kind of support multi-USB interface equipment dependability with survey
Device realizes the Performance Evaluation of multiple USB interface devices.The device can connect a certain number of USB interface devices first, protect
Card USB interface device accurately communicates with PC machine.Secondly, USB interface device can be connected directly between on the same survey device, and
Without cable, occupancy of the cable to incubator inner space is reduced.Third, multichannel programmable power supply module can be individually to each
The USB interface device on road carries out the management and control of power supply；4th, USB multichannel link block can control each USB interface
The interconnection situation of equipment and PC machine；5th, multi channel currents monitoring module can monitor the work electricity of each USB interface device
Stream once finding current anomaly, can directly cut off each equipment and USB multi-paths link block, programmable power supply control module
Connection, so as to cut off the power supply of USB interface device, to protect USB with surveying device.
It is a kind of to support the reliability of multi-USB interface equipment is same to survey device, including：Multichannel programmable power supply control module,
USB multichannels link block, multi channel currents monitoring module, microcontroller and USB interface plug-in unit；Wherein, multichannel may be programmed
Energy supply control module can be independent provide different and accurately operating voltage to each channel；USB multichannels link block with
Multi channel currents monitoring module is connected, and is responsible for the alternating transmission of the usb data between USB interface device and PC machine, and passes through more HUB
Chip cascade realizes the connection of multiple USB interface devices and PC machine, is finally only connected by a USB transmission line with PC machine, real
The parallel same survey of existing multiple USB interface devices and PC machine；Multi channel currents monitoring module realizes the device current of multiple accesses
Monitoring, once finding current anomaly, microcontroller then controls relay to cut off each equipment and USB multi-paths link block, can
Program the connection of energy supply control module；Microcontroller respectively with multichannel programmable power supply module and multi channel currents monitoring module
Connection, microcontroller control the switching of multichannel programmable power supply module, multi channel currents to supervise by receiving the instruction of PC machine
Control the current monitoring of module and channel break-make；USB interface plug-in unit is responsible for external USB interface equipment and monitors mould with multi channel currents
The connection of block.
The USB multichannel link blocks, can be realized by USBHUB chips, pass through multiple HUB chip cascades reality
The connection of existing multiple USB interface devices and PC machine, while each core is controlled by relay (such as G5V-2-H1 and G5V-1 etc.)
The connection of piece and PC machine.
Multichannel programmable power supply module (mainly being realized using ADS8326 and DAC7311) is responsible for carrying to USB interface device
For accurately supply voltage, meet testing requirement of the USB interface device to different electrical power voltage.
Multi channel currents monitoring module, which is used to monitoring the operating current of USB interface device, once to note abnormalities, will pass through after
Electric appliance is cut off the power connection and the connection of data path.Multi channel currents monitoring module is by relay assembly module and current sample
Module forms, and current sampling module is realized by circuit designs such as AD conversion chip and divider resistances, power path and communication
The break-make control of access is realized by relay；Power supply feedback module can be realized by microprocessor and AD converter, by micro-
The numerical value of processor oversampling A/D-converter obtains the operating current of USB interface device, and microprocessor realizes relay control logical
Interrogate the switching of access and power path.
Microcontroller mainly has following three functions：Programmable power supply module is controlled to provide accurate power supply；Receive electric current prison
Control the feedback signal of module；Control the connection of current monitoring module cut-out equipment and programmable power supply module.
USB interface plug-in unit is mainly responsible for external equipment and the physical connection with survey device.
USB interface plug-in unit in the present apparatus is realized using USB-A types or USB-B types interface.
In the utility model, the multi-USB interface reliability has microprocessor with device is surveyed
(STM32F407ZGT6), the key feature of the single-chips such as USB interface, SPI interface.
Having in the utility model to control circuit, chip and relay etc. can be in low temperature (- 40 DEG C) to high temperature
The key feature to work at a temperature of (125 DEG C).
Description of the drawings
Fig. 1 is the functional block diagram of the utility model device.
Fig. 2 is the utility model device operation principle schematic block diagram.
Fig. 3 is multi channel currents monitoring, the control of multichannel programmable power supply and USB multichannel link block functional block diagrams.
Fig. 4 is the functional block diagram of single channel current monitoring module.
Fig. 5 is the functional block diagram of single channel programmable power supply module.
Specific embodiment
Below in conjunction with the accompanying drawings, the advantageous embodiments of the utility model are described in detail, in the process for explaining the utility model
In, omit the detailed description to known function and structure.
In conclusion the utility model, which is that a kind of support multi-USB interface equipment dependability is same, surveys device (as shown in Figure 1),
The reliability of multiple USB interface devices can be realized with survey by the device.Fig. 2 is a specific example of the utility model
Principle is illustrated.Multiple USB interface devices (such as USB flash disk, UKEY) by USB interface respectively directly with multi channel currents monitoring modular
Channel A1 ... channels AN, channel B1 ... channels XN connections, multi channel currents monitoring modular supervised by X*N single channel current
Module composition is controlled, each single channel current monitoring module (as shown in Figure 4) monitors each USB by internal current acquisition module
The operating current of interface equipment (such as USB flash disk, UKEY), when monitoring current anomaly, can directly be cut by relay assembly module
The connection of each equipment of breaking and USB multi-paths link block, programmable power supply control module sets so as to cut off cut-out USB interface
Standby power supply, to protect USB is same to survey device.Multi channel currents monitoring modular is connect with USB multichannel link blocks, is connect for USB
Jaws equipment provides USB data transmission, and wherein USB multichannels link block is by multiple HUB chips (USBHUBA, USBHUBB ...
USBHUBX it) is cascaded and formed by cable, each HUB chips can be realized by GL580A, can support/connect N number of single channel simultaneously
Current monitoring module (channel A1 ... channel AN).The connection of USB multichannels link block is connect, and pass through relay control with PC
The connection of each HUB chips and PC machine.Multi channel currents monitoring modular is connected, and be with multichannel programmable power supply control module
X*N USB interface device provides working power.Multichannel programmable power supply control module is by X*N single channel programmable power supply
Control module forms.Each single channel programmable power supply control module (as shown in Figure 5) is exported by power supply feedback module and power supply
Module forms, and the USB interface device for each channel provides accurately supply voltage, meets USB interface device to different electrical power
The testing requirement of voltage.Fig. 3 is that multi channel currents monitoring, the control of multichannel programmable power supply and USB multichannels link block are former
Block diagram is managed, wherein multi channel currents monitoring module and multichannel programmable power supply control module is made of N number of single channel module,
USB multichannels link block is made of multiple HUB.
It is only illustrated herein with single USB interface device working method, multiple USB interface device working methods are identical, with
The mode of poll tests multiple USB interface devices.Present apparatus main embodiment is as follows：
Initialization：After USB interface device surveys device by the way that USB interface plug-in unit connection reliability is same, according to user
Required for application scenarios, PC machine by give reliability with survey device send order control multichannel programmable power supply control module to
USB interface device provides the required supply voltage of work.Secondly, reliability opens multi channel currents monitoring module with device is surveyed
Channel switch, USB interface device power-up initializing, multi channel currents monitoring module monitoring electric current, judges work at this time
Whether exception and decide whether to disconnect.
With survey work：After USB interface device, which initializes, to be completed, established and connected by USB multichannels link block and PC
It connects and normal with PC machine communication.The big data quantity that PC machine starts to send when order carries out long with USB interface device later communicates.
In the course of work, if reliability detects current anomaly with the multi channel currents monitoring module block for surveying device, it can cut off current logical
The control in road gives PC mono- feedback signal annunciator operation irregularity, stops test；If test intermediate user needs replacing work
Voltage can send order and inform that reliability with device is surveyed, switches the operating voltage of USB interface device.PC can be in the course of work
The operating current of each channel and working power voltage situation are obtained by order in real time.
Test terminates：If current a certain USB interface device needs to terminate test due to operation irregularity or completion test, at this time
PC can send order and inform that reliability with the connection for surveying device disconnection USB interface device, stops current test.Other USB connect
Jaws equipment continues to test, until completing all reliabilities that are connected to the USB interface device surveyed on device.
Claims (6)
1. a kind of support the reliability of multi-USB interface equipment is same to survey device, including：Multichannel programmable power supply control module, USB
Multichannel link block, multi channel currents monitoring module, microcontroller and USB interface plug-in unit；Wherein, multichannel programmable power supply
Control module can be independent provide different and accurately operating voltage to each channel；USB multichannels link block with leading to more
Road current monitoring module is connected, and is responsible for the alternating transmission of the usb data between USB interface device and PC machine, and passes through more HUB chips
The connection of multiple USB interface devices and PC machine is realized in cascade, is finally only connected by a USB transmission line with PC machine, is realized more
The parallel same survey of a USB interface device and PC machine；Multi channel currents monitoring module realizes the monitoring of the device current of multiple accesses,
Once it was found that current anomaly, microcontroller then controls relay to cut off each equipment and USB multi-paths link block, programmable electricity
The connection of source control module；Microcontroller is connect respectively with multichannel programmable power supply module and multi channel currents monitoring module,
Microcontroller controls switching, the multi channel currents monitoring module of multichannel programmable power supply module by receiving the instruction of PC machine
Current monitoring and channel break-make；USB interface plug-in unit is responsible for the company of external USB interface equipment and multi channel currents monitoring module
It connects.
2. reliability according to claim 1 is same to survey device, which is characterized in that the reliability is the same as all electricity on survey device
Road component and interface card are operated in when can be long at technical grade temperature (- 40 DEG C~125 DEG C).
3. reliability according to claim 1 is same to survey device, it is characterised in that：The multichannel programmable power supply control
Module can realize it is independently-powered to each channel, can pass through microprocessor realize programmable power supply control.
4. reliability according to claim 1 is same to survey device, it is characterised in that：The USB multichannels link block by
Multiple HUB chips (GL580A) cascades realize the connection of multiple USB interface devices and PC and with stablizing communication during PC long, so as to
Realize the same survey of multi-USB interface equipment.
5. reliability according to claim 1 is the same as surveying device, which is characterized in that the multi channel currents monitoring module and
The USB interface of USB multichannel link blocks supports USB-A types and USB-B types.
6. reliability according to claim 1 is same to survey device, it is characterised in that：The multi channel currents monitoring module by
Relay assembly module and current sampling module composition, wherein current sampling module include AD conversion chip and divider resistance, electricity
The control of the break-make of source access and communication channel is realized by relay；Power supply feedback module is real by microprocessor and AD converter
It is existing, the operating current of USB interface device is obtained by the numerical value of microprocessor samples AD converter, microprocessor is to relay control
System realizes the switching of communication channel and power path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318310.3U CN207516987U (en) | 2017-10-12 | 2017-10-12 | It is a kind of to support the reliability of multi-USB interface equipment is same to survey device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318310.3U CN207516987U (en) | 2017-10-12 | 2017-10-12 | It is a kind of to support the reliability of multi-USB interface equipment is same to survey device |
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| CN207516987U true CN207516987U (en) | 2018-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107766187A (en) * | 2017-10-12 | 2018-03-06 | 北京中电华大电子设计有限责任公司 | It is a kind of to support the reliability of multi-USB interface equipment is same to survey device and method |
| CN112259155A (en) * | 2020-11-16 | 2021-01-22 | 深圳市硅格半导体有限公司 | USB device test system and method and SATA device test system and method |
-
2017
- 2017-10-12 CN CN201721318310.3U patent/CN207516987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107766187A (en) * | 2017-10-12 | 2018-03-06 | 北京中电华大电子设计有限责任公司 | It is a kind of to support the reliability of multi-USB interface equipment is same to survey device and method |
| CN112259155A (en) * | 2020-11-16 | 2021-01-22 | 深圳市硅格半导体有限公司 | USB device test system and method and SATA device test system and method |
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