CN106250282A - A kind of device improving CarPlay onboard system communication performance - Google Patents
A kind of device improving CarPlay onboard system communication performance Download PDFInfo
- Publication number
- CN106250282A CN106250282A CN201610638035.7A CN201610638035A CN106250282A CN 106250282 A CN106250282 A CN 106250282A CN 201610638035 A CN201610638035 A CN 201610638035A CN 106250282 A CN106250282 A CN 106250282A
- Authority
- CN
- China
- Prior art keywords
- carplay
- onboard system
- usb
- communication performance
- speed control
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
Abstract
The present invention provides a kind of device improving CarPlay onboard system communication performance, the usb host that is connected with described High-speed Control usb hub including uplink port, downlink port, low pressure difference linear voltage regulator, controllable switch, flash firmware, High-speed Control usb hub, USB device；Described usb host, USB device are connected with uplink port, downlink port respectively, and described uplink port is connected with on-vehicle host；Described High-speed Control usb hub is also connected with controllable switch, flash firmware；The driving force of USB is improved by High-speed Control usb hub, apparatus of the present invention are for needing to develop in the CarPlay onboard system that CarPlay applies, improve the communication performance of CarPlay onboard system, and make CarPlay onboard system can pass through CarPlay authentication requesting, carry out occurring without mistake during ATS test, for needing the on-vehicle host increasing CarPlay application to save development cost.
Description
Technical field
The present invention relates to onboard system technical field, be specifically related to a kind of CarPlay onboard system communication performance of improving
Device.
Background technology
Existing vehicle entertainment system main frame manufacturer major part is all integrated with CarPlay function, and CarPlay onboard system will
The iOS device of user, iOS experience equipment and vehicle entertainment system have carried out perfect adaptation, but exploitation CarPlay applies
Time need by technical certification, as it is shown in figure 1, need at USB port B, carry out USB eye pattern test, existing CarPlay car
The limitation that loading system is shaped due to on-vehicle host scheme, such as: the driving force of USB driving chip, the way to get there of PCB circuit and length
Degree, the quality of vehicle-carrying wire harness material and the limitation of length so that USB onboard system poor performance, carry out easily losing during USB communication
Bag phenomenon, causes existing CarPlay onboard system cannot pass through CarPlay authentication test.
Summary of the invention
The present invention provides a kind of device improving CarPlay onboard system communication performance, makes CarPlay onboard system more preferable
By CarPlay authentication test.In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
The present invention provides a kind of device improving CarPlay onboard system communication performance, including uplink port, descending
Link port, low pressure difference linear voltage regulator, controllable switch, flash firmware, High-speed Control usb hub and described high speed control
The usb host of usb hub processed connection, USB device；Described usb host, USB device respectively with uplink port, descending chain
Road port connects, and described uplink port is connected with on-vehicle host；Described High-speed Control usb hub also with can control out
Close, flash firmware connects.
Further, described uplink port provides supply voltage for low pressure difference linear voltage regulator and controllable switch.
Further, described low pressure difference linear voltage regulator is for being adjusted to the supply voltage that uplink port inputs often
Supply voltage.
Further, described low pressure difference linear voltage regulator provides often power supply for flash firmware and High-speed Control usb hub
Voltage.
Further, described controllable switch controls uplink port provides supply voltage for downlink port.
Further, the magnitude of voltage of described supply voltage is 4.95～5.2V.
Further, the magnitude of voltage of described normal supply voltage is 3.2～3.4V.
Further, described High-speed Control usb hub is connected by SPI serial mode with flash firmware.
A kind of device improving CarPlay onboard system communication performance that the present invention provides, by High-speed Control USB set line
Device improves the driving force of USB, in the CarPlay onboard system needing exploitation CarPlay application, improves CarPlay
The communication performance of onboard system, and make CarPlay onboard system can pass through CarPlay authentication requesting, carry out ATS survey
Mistake is occurred without, for needing the on-vehicle host increasing CarPlay application to save development cost during examination.
Accompanying drawing explanation
Fig. 1 is existing CarPlay onboard system structural representation when carrying out CarPlay authentication test；
Fig. 2 is to add structural representation when CarPlay onboard system after apparatus of the present invention carries out CarPlay authentication test；
Fig. 3 is a kind of apparatus structure schematic diagram improving CarPlay onboard system communication performance of the present invention；
Fig. 4 is existing CarPlay onboard system USB eye pattern structural representation when testing；
USB eye pattern structural representation when Fig. 5 is to add that CarPlay onboard system is tested after apparatus of the present invention.
Detailed description of the invention
The most specifically illustrating embodiments of the present invention, accompanying drawing is only for reference and explanation uses, and it is right not constitute
The restriction of scope of patent protection of the present invention.
The present invention provides a kind of device improving CarPlay onboard system communication performance, as it is shown on figure 3, include uplink
Road port PORT UP-STREAM (i.e. Fig. 1, USB port A) in 2, downlink port PORT DOWN-STREAM (i.e. Fig. 1,
USB port B in 2), low pressure difference linear voltage regulator 3V3LOD, controllable switch SWITCH, flash firmware FLASH
The usb host USB that Firmware, High-speed Control usb hub USB84602 are connected with described High-speed Control usb hub
HOST, USB device USB DEVICE；Described usb host, USB device are respectively with uplink port, downlink port even
Connecing, described uplink port is connected with on-vehicle host, transmits usb communication signal for High-speed Control usb hub；Described high speed
Control usb hub to be also connected with controllable switch, flash firmware.It is descending that described controllable switch controls uplink port
Link port provides 4.95～5.2V supply voltages.
Preferably, described uplink port provides 4.95～5.2V electricity for low pressure difference linear voltage regulator and controllable switch
Source voltage.
Preferably, described low pressure difference linear voltage regulator is for the 4.95～5.2V supply voltages inputted by uplink port
It is adjusted to 3.2～3.4V normal supply voltages.
Preferably, described low pressure difference linear voltage regulator provides 3.2～3.4V for flash firmware and High-speed Control usb hub
Often supply voltage.
Preferably, the magnitude of voltage of described supply voltage is 4.95～5.2V.
Preferably, the magnitude of voltage of described normal supply voltage is 3.2～3.4V.
Preferably, described High-speed Control usb hub is connected by SPI serial mode with flash firmware.
As in figure 2 it is shown, for needing to develop in the CarPlay onboard system that CarPlay applies, improve CarPlay vehicle-mounted
The communication performance of system, is illustrated in figure 4 USB eye pattern when existing CarPlay onboard system is tested, as shown in Figure 5
For USB eye pattern when CarPlay onboard system is tested after adding apparatus of the present invention, it can be seen that after adding apparatus of the present invention
USB eye pattern effect more effective than being not added with the USB eye pattern that apparatus of the present invention obtain so that CarPlay onboard system is more preferable
By CarPlay authentication test.
Above disclosed only presently preferred embodiments of the present invention, it is impossible to limit the rights protection model of the present invention with this
Enclose, the equivalent variations therefore made according to scope of the present invention patent, still belong to the scope that the present invention is contained.
Claims (8)
1. the device improving CarPlay onboard system communication performance, it is characterised in that: include uplink port, descending
Link port, low pressure difference linear voltage regulator, controllable switch, flash firmware, High-speed Control usb hub and described high speed control
The usb host of usb hub processed connection, USB device；Described usb host, USB device respectively with uplink port, descending chain
Road port connects, and described uplink port is connected with on-vehicle host；Described High-speed Control usb hub also with can control out
Close, flash firmware connects.
A kind of device improving CarPlay onboard system communication performance the most as claimed in claim 1, it is characterised in that: described
Uplink port provides supply voltage for low pressure difference linear voltage regulator and controllable switch.
A kind of device improving CarPlay onboard system communication performance the most as claimed in claim 2, it is characterised in that: described
Low pressure difference linear voltage regulator is for being adjusted to normal supply voltage by the supply voltage that uplink port inputs.
A kind of device improving CarPlay onboard system communication performance the most as claimed in claim 3, it is characterised in that: described
Low pressure difference linear voltage regulator provides normal supply voltage for flash firmware and High-speed Control usb hub.
A kind of device improving CarPlay onboard system communication performance the most as claimed in claim 2, it is characterised in that: described
Controllable switch controls uplink port provides supply voltage for downlink port.
6. a kind of device improving CarPlay onboard system communication performance as described in claim 2,3 or 5, it is characterised in that:
The magnitude of voltage of described supply voltage is 4.95～5.2V.
7. a kind of device improving CarPlay onboard system communication performance as described in claim 3 or 4, it is characterised in that: institute
The magnitude of voltage stating normal supply voltage is 3.2～3.4V.
A kind of device improving CarPlay onboard system communication performance the most as claimed in claim 1, it is characterised in that: described
High-speed Control usb hub is connected by SPI serial mode with flash firmware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638035.7A CN106250282A (en) | 2016-08-05 | 2016-08-05 | A kind of device improving CarPlay onboard system communication performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638035.7A CN106250282A (en) | 2016-08-05 | 2016-08-05 | A kind of device improving CarPlay onboard system communication performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106250282A true CN106250282A (en) | 2016-12-21 |
Family
ID=58079100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610638035.7A Pending CN106250282A (en) | 2016-08-05 | 2016-08-05 | A kind of device improving CarPlay onboard system communication performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106250282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603860A (en) * | 2016-12-30 | 2017-04-26 | 百度在线网络技术（北京）有限公司 | Communication connection establishment method and system, mobile terminal and vehicle-mounted equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365678A (en) * | 2012-04-06 | 2013-10-23 | 上海博泰悦臻电子设备制造有限公司 | Updating method of vehicle-mounted system |
| US20130314537A1 (en) * | 2008-10-30 | 2013-11-28 | Digital Ally, Inc. | Multi-functional remote monitoring system |
| CN104881387A (en) * | 2015-05-26 | 2015-09-02 | 青岛海信宽带多媒体技术有限公司 | USB connection method and USB concentrator |
| CN205263805U (en) * | 2015-12-23 | 2016-05-25 | 德尔福中央电气（上海）有限公司 | Support carplay's USB equipment |
| CN205264965U (en) * | 2015-12-17 | 2016-05-25 | 德尔福中央电气（上海）有限公司 | On -vehicle USBSD concentrator |
-
2016
- 2016-08-05 CN CN201610638035.7A patent/CN106250282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130314537A1 (en) * | 2008-10-30 | 2013-11-28 | Digital Ally, Inc. | Multi-functional remote monitoring system |
| CN103365678A (en) * | 2012-04-06 | 2013-10-23 | 上海博泰悦臻电子设备制造有限公司 | Updating method of vehicle-mounted system |
| CN104881387A (en) * | 2015-05-26 | 2015-09-02 | 青岛海信宽带多媒体技术有限公司 | USB connection method and USB concentrator |
| CN205264965U (en) * | 2015-12-17 | 2016-05-25 | 德尔福中央电气（上海）有限公司 | On -vehicle USBSD concentrator |
| CN205263805U (en) * | 2015-12-23 | 2016-05-25 | 德尔福中央电气（上海）有限公司 | Support carplay's USB equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603860A (en) * | 2016-12-30 | 2017-04-26 | 百度在线网络技术（北京）有限公司 | Communication connection establishment method and system, mobile terminal and vehicle-mounted equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2021518918A (en) | Magnetic levitation test system and electromagnet test method | |
| US9018957B2 (en) | Method and system for diagnostic measurement of motor vehicle restraint system squib loop resistance | |
| CN106250282A (en) | A kind of device improving CarPlay onboard system communication performance | |
| WO2004081587A3 (en) | Apparatus and method for testing electronic systems | |
| CN102929274A (en) | Test system, method and device for redundancy of in-vehicle network during ground offset | |
| US9178418B2 (en) | Pre-emphasis circuit | |
| CN109004904A (en) | Calibration parameter setting method, device, system, equipment and medium | |
| CN110365423B (en) | Method for verifying radio SOC platform DUT | |
| EP2289147B1 (en) | Control of battery balance | |
| DE102012113015A1 (en) | A device for emergency signaling in a vehicle crash and method of operation | |
| CN105652111A (en) | Pantograph dynamic operation performance control method and device | |
| Aiello et al. | Characterization of the susceptibility to EMI of a BMS IC for electric vehicles by direct power and bulk current injection | |
| CN107487184A (en) | Vehicle trouble guard method and device | |
| US9372205B2 (en) | Universal probe card PCB design | |
| US20150236690A1 (en) | High-swing voltage mode driver | |
| CN203376454U (en) | An automobile generator performance testing apparatus | |
| US20100271080A1 (en) | Driver comparator circuit | |
| CN104977858A (en) | Control method of vehicle-mounted electronic device turn-on and turn-off | |
| WO2014138681A8 (en) | Self-testing integrated circuits | |
| DE112016006281B4 (en) | TRANSMITTING DEVICE, TRANSMITTING METHOD AND COMMUNICATION SYSTEM | |
| CN107870833B (en) | USB3.0 interface testing device | |
| EP3581948B1 (en) | Apparatus for verifying electrical connectivity | |
| CN108139999A (en) | For tuning the method and apparatus of universal serial bus electric power delivery signal | |
| CN105717374A (en) | Method for positioning source of standard exceeding problem of stray radiation | |
| US11982589B2 (en) | Magnetic levitation test system and electromagnet test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
|
| RJ01 | Rejection of invention patent application after publication |