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 PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
usb interface
usb
module
power supply
same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201721318310.3U
Other languages
Chinese (zh)
Inventor
董攀
蒋玉茜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing CEC Huada Electronic Design Co Ltd
Original Assignee
Beijing CEC Huada Electronic Design Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing CEC Huada Electronic Design Co Ltd filed Critical Beijing CEC Huada Electronic Design Co Ltd
Priority to CN201721318310.3U priority Critical patent/CN207516987U/en
Application granted granted Critical
Publication of CN207516987U publication Critical patent/CN207516987U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

It is a kind of to support the reliability of multi-USB interface equipment is same to survey device
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.
CN201721318310.3U 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 Active CN207516987U (en)

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

Applications Claiming Priority (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

Publications (1)

Publication Number Publication Date
CN207516987U true CN207516987U (en) 2018-06-19

Family

ID=62532934

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721318310.3U Active 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

Country Status (1)

Country Link
CN (1) CN207516987U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN206301014U (en) Portable thread cable test device
CN107766187A (en) It is a kind of to support the reliability of multi-USB interface equipment is same to survey device and method
CN202404185U (en) Multi-core cable fault tester
CN109143033B (en) Automatic testing system for whole satellite interface
CN108761328A (en) Electric tool switch test device and system
CN202404164U (en) Power supply system processor simulation system
CN213122241U (en) Automatic test system for testing USB3.0 interface
CN207516987U (en) It is a kind of to support the reliability of multi-USB interface equipment is same to survey device
CN203025340U (en) Test fixture detecting system
CN108761205A (en) Cable through and the test method and tester of insulation
CN103995207A (en) Three-remote automatic test device for power distribution terminal
CN203422426U (en) Universal comprehensive automatic test system of airborne computer of civilian airliner
CN104020376A (en) Three-remote automatic testing method for power distribution terminal
CN102116814A (en) Multifunction integrated electronic measurement method and device
CN204069101U (en) A kind of communication interface switching device shifter
CN203552056U (en) Electric vehicle controller test system
CN203673037U (en) Automatic circuit board detection tool of intelligent electric energy meter
CN112834965B (en) Automatic tester for satellite electric interface
CN213069128U (en) Wire harness testing system and device
CN112834966B (en) Automatic test system for satellite electrical interface
CN112187352B (en) Connecting equipment and test system
CN212965275U (en) PCB board electric current detection circuitry
CN102608561A (en) Electricity meter power consumption tester
CN213658941U (en) Low-cost cable test system and test transfer box
CN216144907U (en) Fault diagnosis equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant