CN110262836A - Built-in multimedia device and communication equipment for Vehicle telematics processor - Google Patents
Built-in multimedia device and communication equipment for Vehicle telematics processor Download PDFInfo
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- CN110262836A CN110262836A CN201910356141.XA CN201910356141A CN110262836A CN 110262836 A CN110262836 A CN 110262836A CN 201910356141 A CN201910356141 A CN 201910356141A CN 110262836 A CN110262836 A CN 110262836A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
A kind of built-in multimedia device and the communication equipment for Vehicle telematics processor, the built-in multimedia device is applied in the communication equipment of Vehicle telematics processor T-BOX, including starting disk partition, high reliability disk subregion and user data disk partition, wherein: the starting disk partition, by the way of storing a number of bits evidence in each unit memory space, the startup program of vehicle-mounted T-BOX is stored；The high reliability disk subregion stores the initialization information of hardware device included by the vehicle-mounted T-BOX and the configuration file of vehicle-mounted T-BOX by the way of storing a number of bits evidence in each unit memory space；The user data disk partition stores the data for the application program that the vehicle-mounted T-BOX is installed, to reduce the cost of the memory module of vehicle-mounted T-BOX under the premise of meeting the high storage capacity and data reliability of vehicle-mounted T-BOX.
Description
Technical field
It is handled this application involves technical field of memory more particularly to built-in multimedia device and for Vehicle telematics
The communication equipment of device.
Background technique
With the development of internet technology, car networking system is widely used.Car networking system includes four parts,
Respectively host, mounted remote message handler (telematics box, T-BOX), mobile phone terminal application program
(application, APP) and background system.Vehicle-mounted T-BOX is an important component part in vehicle net system, mainly
Control for realizing background system or mobile phone terminal APP to vehicle.
Vehicle-mounted T-BOX mainly carries out information with background system or mobile phone terminal APP by the communication device of inside setting
Interaction.It in the prior art, is the reliability for guaranteeing data in vehicle-mounted T-BOX, referring to FIG. 1, the communication device master of vehicle-mounted T-BOX
It to be made of processor and memory module, and memory module is usually by single layer cell (single level cell, SLC) framework
Flash memory and SLC framework with non-(not and, NAND) flash memory (flash) form.Wherein, it is stored in NAND Flash vehicle-mounted
The related data etc. for the application program installed in the startup program of T-BOX, configuration file and vehicle-mounted T-BOX, processor passes through
The corresponding data stored in read-write NAND Flash is operated normally with the communication device for guaranteeing vehicle-mounted T-BOX.The NAND of SLC framework
Flash is due to having the characteristics that each unit only stores a number of bits according to so as to guarantee to be stored in the NAND
The reliability of data in Flash.
With various sexual development of business, user is increasing to the capacity requirement of NAND Flash, and industry high capacity
SLC framework NAND Flash high expensive, therefore, how the high storage capacity and data for meeting vehicle-mounted T-BOX can
Under the premise of property, the cost of the memory module of vehicle-mounted T-BOX is reduced, is a problem urgently to be resolved at present.
Summary of the invention
The embodiment of the present application provides a kind of built-in multimedia device and the communication for Vehicle telematics processor is set
It is standby, to reduce the storage of vehicle-mounted T-BOX under the premise of meeting the high storage capacity and data reliability of vehicle-mounted T-BOX
The cost of module.
In a first aspect, a kind of built-in multimedia device is provided, the communication applied to Vehicle telematics processor T-BOX
In equipment, which includes starting disk partition, high reliability disk subregion and user data disk point
Area, in which: the starting disk partition, by the way of storing a number of bits evidence in each unit memory space, storage
The startup program of vehicle-mounted T-BOX；The high reliability disk subregion, using one bit of storage in each unit memory space
The mode of data stores the initialization information of hardware device included by the vehicle-mounted T-BOX and the configuration text of the vehicle-mounted T-BOX
Part；And the user data disk partition, store the data for the application program that vehicle-mounted T-BOX is installed.
In above-mentioned built-in multimedia device, since starting disk partition and high reliability disk subregion use SLC framework
Carry out storing data, thereby may be ensured that the data being stored in the two disk partition (store the starting in vehicle-mounted T-BOX
Program, hardware device initialization information and system operation in modules some configuration parameter files) it is reliable
Property, meet the needs of vehicle-mounted T-BOX is to data reliability.And the built-in multimedia device uses eMMC standard specification, it can be with
Existing memory capacity limitation asks when avoiding storing the related data of vehicle-mounted T-BOX using NAND flash in the prior art
Topic, it can be understood as a kind of improvement to existing eMMC memory, and use eMMC standard specification storage device have at
This is low and the characteristics of be capable of providing biggish memory capacity, and therefore, built-in multimedia device provided by the embodiments of the present application can
To realize under the premise of meeting the high storage capacity and data reliability of vehicle-mounted T-BOX, the storage mould of vehicle-mounted T-BOX is reduced
The effect of the cost of block.
In a kind of possible design, which includes that the first high reliability disk subregion and second are high
Data of the number lower than setting write-in threshold value can be written in the first high reliability disk partitioned storage in reliability disk partition,
It is higher than the data of the write-in threshold value in the second high reliability disk partitioned storage write-in number.
In above-mentioned built-in multimedia device, the high reliability disk subregion can be pressed according to actual use demand
According to the size of the write-in number of data, two disk partition are divided into, can satisfy the need of the different application scene of vehicle-mounted T-BOX
It asks, improves the flexibility of built-in multimedia device.
In a kind of possible design, which can use and deposit in each unit memory space
The mode for storing up at least two number of bits evidences stores the data of vehicle-mounted T-BOX configuration file and the application program of vehicle-mounted T-BOX.
In above-mentioned built-in multimedia device, since user data disk partition is using the frame of MLC or TLC
Structure, that is to say, that multiple number of bits evidences are stored in a unit memory space, it is thus possible to increase built-in multimedia fills
The memory capacity set.
It include main starting disk partition and spare starting disk point in the starting disk partition in a kind of possible design
The startup program that vehicle-mounted T-BOX is stored in area, the main starting disk partition and the spare starting disk partition, in the main starting
When disk partition is broken down, the processor of vehicle-mounted T-BOX reads the starting of the vehicle-mounted T-BOX from the spare starting disk partition
Program.
In above-mentioned built-in multimedia device, by using the mode for backing up the startup program of vehicle-mounted T-BOX,
It can guarantee that vehicle-mounted T-BOX still is able to start vehicle-mounted T-BOX, and vehicle can be improved when main starting disk partition is broken down
Carry the stability of T-BOX.
Second aspect, provides a kind of communication equipment for Vehicle telematics processor T-BOX, which includes
Processor and built-in multimedia device, in which: the built-in multimedia device, for storing data, which includes vehicle-mounted
The configuration file of the initialization information of hardware device included by the startup program of T-BOX, the vehicle-mounted T-BOX, the vehicle-mounted T-BOX
With the data of the vehicle-mounted T-BOX application program installed；The processor is stored for reading in the built-in multimedia device
Data, and/or, data to be stored are written into the built-in multimedia device.And built-in multimedia device and
On the one hand the built-in multimedia device or in the possible design of one of which of first aspect is similar, and details are not described herein.
In a kind of possible design, the processor and the built-in multimedia device be can be, but not limited to by counting safely
Word input and output SDIO connection.
In the above-mentioned technical solutions, built-in multimedia device can be set in the outside of the communication equipment of vehicle-mounted T-BOX,
By the SDIO interface outside communication equipment, it is connect with the processor of communication equipment.Alternatively, the built-in multimedia device may be used also
Be arranged in the inside of the communication equipment, processor and built-in multimedia device inside communication equipment using SDIO agreement into
Row communication, those skilled in the art can be configured according to use demand, can increase the flexibility of the communication equipment.
The third aspect, provides a kind of communication equipment for Vehicle telematics processor T-BOX, which includes
Processor and non-nand flash memory and built-in multimedia device, in which: this and non-nand flash memory, for storing vehicle-mounted T-BOX's
Startup program；The built-in multimedia device, for storing data, the data include hardware device included by vehicle-mounted T-BOX
Initialization information, vehicle-mounted T-BOX configuration file and the data of application program installed of the vehicle-mounted T-BOX；The processor,
For reading the data stored in the startup program with non-nand flash memory and the built-in multimedia device, and/or, it is embedding to this
Enter and data to be stored are written in formula multimedia device.The built-in multimedia device includes high reliability disk subregion and use
User data disk partition, the high reliability disk subregion, using one number of bits evidence of storage in each unit memory space
Mode, store the initialization information and configuration file of hardware device included by the vehicle-mounted T-BOX；The user data disk point
Area stores the data for the application program that the vehicle-mounted T-BOX is installed.
In the above-mentioned technical solutions, by the way that the partial data stored in NAND flash in the prior art is dumped to insertion
The mode of formula multimedia device can satisfy so that being capable of providing in NAND flash to the free memory increase of user
User is to the capacity requirement of NAND flash, and unloading is stored in the data of built-in multimedia device using SLC framework,
It can guarantee the data reliability demand of vehicle-mounted T-BOX, in this way, in the structure for not changing vehicle-mounted T-BOX and can not have to increase
Under the premise of addition sheet, meet the high storage capacity of vehicle-mounted T-BOX and the demand of data reliability, implementation is easy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the communication device of vehicle-mounted T-BOX in the prior art；
Fig. 2 is the schematic diagram of three kinds of storage organizations of NAND flash in the prior art；
Fig. 3 is the schematic diagram of the data subregion for the eMMC that mobile phone uses in the prior art；
Fig. 4 is a kind of a kind of exemplary structural block diagram of built-in multimedia device provided by the embodiments of the present application；
Fig. 5 is a kind of exemplary structural block diagram of another kind of built-in multimedia device provided by the embodiments of the present application；
Fig. 6 is a kind of exemplary structural block diagram of another kind of built-in multimedia device provided by the embodiments of the present application；
Fig. 7 provides a kind of a kind of exemplary structural block diagram of the communication equipment for vehicle-mounted T-BOX for the embodiment of the present application；
Fig. 8 provides a kind of another exemplary structural block diagram of the communication equipment for vehicle-mounted T-BOX for the embodiment of the present application；
Fig. 9 is the schematic diagram of the connection type of NAND flash and processor；
Figure 10 is the schematic diagram of the connection type of eMMC memory and processor；
Figure 11 provides a kind of another exemplary structural frames of the communication equipment for vehicle-mounted T-BOX for the embodiment of the present application
Figure.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with Figure of description
And specific embodiment technical solutions in the embodiments of the present application is described in detail.
Vehicle-mounted T-BOX can also be with chauffeur box, major function: when user sends control life by mobile phone terminal APP
After order, background system can issue monitoring request instruction to vehicle-mounted T-BOX.Vehicle T-BOX is after receiving the monitoring request instruction, then
By controller local area network (controller area network, CAN) bus, send corresponding to the monitoring request instruction
Control message realize the control to vehicle to component corresponding in vehicle, and will be in control result feedback to mobile phone terminal APP.
In this way, it may be implemented that user is allowed remotely to start car light, opening air-conditioning, adjustment seat, opening engine etc..
It is realized by vehicle-mounted T-BOX to the intelligentized control method of vehicle, a large amount of data is needed, for example, vehicle-mounted T-BOX's opens
Configuration file and user data of the application software that dynamic program, each function used for vehicles are controlled etc..Such as Fig. 1 institute
Show, mainly uses memory module of the NAND Flash as the communication device of vehicle-mounted T-BOX in the prior art, it is vehicle-mounted for storing
Data needed for T-BOX.
It include several unit memory spaces (or being properly termed as storage unit) in NAND Flash, according to each unit
The bit number of the data stored in memory space is different, NAND Flash can be divided for SLC, multilevel-cell (multi level
Cell, MLC) and three kinds of frameworks of three-layer unit (triple level cell, TLC).A unit of NAND Flash stores empty
Between be that its data stored is indicated by different voltage class.Referring to FIG. 2, in SLC framework, unit memory space
Voltage be divided into 2 grades, respectively indicate 0 and 1, is i.e. stores the data of 1 bit in a unit memory space.?
In MLC architecture, the voltage of unit memory space is divided into 4 grades, respectively indicates 00,01,10,11, i.e., deposits in a unit
Store up the data that 2 bits are stored in space.Similarly, in TLC framework, the voltage of unit memory space is divided into 8 grades,
000,001,010,011,100,101,110,111 are respectively indicated, i.e., 3 bits of storage in a unit memory space
Data.
When needing that data are written in NAND Flash, needs to apply voltage and form an electric field, for example, in SLC frame
In the NAND Flash of structure, unit memory space includes 2 states, then then thinks that the state is 1 when voltage reaches some threshold value,
To write data into unit memory space.And in MLC and TLC, the state of unit memory space is more, each in order to distinguish
A state, then the voltage needs applied are more accurate, thus be also just more easier to malfunction, therefore, the NAND Flash of SLC framework
It is that data reliability is highest in three kinds of frameworks.Therefore, in order to guarantee the reliabilities of data, the communication device of vehicle-mounted T-BOX
Memory module generallys use the NAND Flash of SLC framework.
With the development of vehicle-carrying communication technology, the function of vehicle-mounted T-BOX is more and more, therefore, deposits to NAND Flash
The demand for storing up capacity is also increasing.But the NAND Flash high expensive of the SLC framework of industry high capacity, to solve vehicle-mounted T-
The capacity problem of BOX, a kind of alternative solution are as follows: use the memory in mobile phone, i.e. embedded multi-media card (embedded
Multi media card, eMMC) it is used as the memory module in vehicle-mounted T-BOX.
In the following, the eMMC used in mobile phone is introduced.Referring to FIG. 3, the eMMC in mobile phone may include 5 points
Protection data block (replay protected memory block, RPMB) point is reset in area, respectively starting (boot) subregion
Area, general subregion (general purpose partition, GPP), enhancing user data subregion (enhanced user
Data area, EUDA) and user data subregion User DATA.Wherein, boot subregion is for needed for memory mobile phone system
Startup program；RPMB subregion is that the subregion with security feature can verify data when there is write-in data RPMB subregion
Legitimacy, and when reading data from RPMB subregion, signature mechanism is also provided, guarantees that read data are RPMB subregions
Internal data, rather than attacker forge data, in practical applications, in RPMB subregion commonly used in be stored with prevent it is non-
Method distorts the data of demand, such as fingerprint pays relevant public key, sequence number etc. on mobile phone；GPP subregion for storage system and
Mobile phone application data, EUDA subregion is similar with the effect of UDA subregion, commonly used in storage user data etc..
However, in the subregion of above-mentioned 5 eMMC, only boot subregion using SLC framework, and what other subregions used
It is MLC architecture or TLC framework.By the aforementioned introduction to SLC framework, MLC architecture and TLC framework it is found that using MLC architecture
It is lower with the reliability of TLC framework storing data, it is seen then that possibly can not to be substituted in vehicle-mounted T-BOX using the eMMC in mobile phone
NAND Flash。
Therefore, how under the premise of meeting the high storage capacity and data reliability of vehicle-mounted T-BOX, vehicle-mounted T- is reduced
The cost of the memory module of BOX is a problem urgently to be resolved at present.
To solve the above problems, first to the data stored in the NAND Flash of vehicle-mounted T-BOX in the embodiment of the present application
It is analyzed.The data stored in the NAND Flash of vehicle-mounted T-BOX mainly include three types: 1, startup program；2, firmware
(firmware) each mould in (initialization information that can be understood as hardware device in vehicle-mounted T-BOX) and system operation
Some configuration parameter files that block may be used；3, user data.Each type of data correspond to one in NAND Flash
Subregion, and each subregion is all made of SLC framework and is stored.However, vehicle-mounted T-BOX in actual use, can only
Meet the reliability of the data of aforementioned 2 seed type.
In consideration of it, the embodiment of the present application provides a kind of communication equipment applied to Vehicle telematics processor T-BOX
In built-in multimedia device, under the premise of meeting the high storage capacity and data reliability of vehicle-mounted T-BOX, drop
The cost of the memory module of low vehicle-mounted T-BOX.Below in conjunction with attached drawing to the built-in multimedia device in the embodiment of the present application
It is illustrated.
It should be noted that " multiple " refer to two or more in the description of the present application, in consideration of it, the application
" multiple " can also be interpreted as " at least two " in embodiment."at least one", it will be appreciated that be one or more, such as understand
For one, two or more.E.g., including at least one, refer to including one, two or more, and do not limit packet
What is included is which, it may for example comprise at least one of A, B and C, then include can be A, B, C, A and B, A and C, B and
Or A and B and C C,."and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B,
Can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/", such as without special theory
It is bright, typically represent the relationship that forward-backward correlation object is a kind of "or".Term " system " and " network " in the embodiment of the present application can
It is used interchangeably.
Unless indicated to the contrary, the embodiment of the present application refers to the ordinal numbers such as " first ", " second " for multiple objects
It distinguishes, is not used in sequence, timing, priority or the significance level for limiting multiple objects.
Referring to FIG. 4, being a kind of structural block diagram of built-in multimedia device 400 provided by the embodiments of the present application.Such as Fig. 4
Shown, which includes 3 disk partition, respectively starting disk partition 401, high reliability disk subregion
402 and user data disk partition 403, in which:
Start disk partition 401, by the way of storing a number of bits evidence in each unit memory space, storage
The startup program of vehicle-mounted T-BOX；
High reliability disk subregion 402, by the way of storing a number of bits evidence in each unit memory space,
Store the initialization information of hardware device included by the vehicle-mounted T-BOX and the configuration file of vehicle-mounted T-BOX；
User data disk partition 403 stores the data for the application program that vehicle-mounted T-BOX is installed.
In above-mentioned built-in multimedia device, since starting disk partition 401 and high reliability disk subregion 402 are all
Using SLC framework come storing data, the reliability for the data being stored in the two disk partition thereby may be ensured that, because
This, the startup program in vehicle-mounted T-BOX, the initialization information of hardware device and system are stored in the two disk partition and is transported
Some configuration parameter files of modules during row, it is ensured that demand of the vehicle-mounted T-BOX to data reliability.And it should
Built-in multimedia device uses eMMC standard specification, it can be understood as a kind of improvement to existing eMMC memory, and adopt
Feature with the storage device maximum of eMMC standard specification is exactly at low cost and is capable of providing biggish memory capacity, therefore, this
The built-in multimedia device that application embodiment provides may be implemented can in the high storage capacity and data for meeting vehicle-mounted T-BOX
Under the premise of property, the effect of the cost of the memory module of vehicle-mounted T-BOX is reduced.
In the embodiment of the present application, the mode of 403 storing data of user data disk partition can include but is not limited to as
Lower two kinds:
First way is stored vehicle-mounted by the way of storing a number of bits evidence in each unit memory space
The data of the application program of T-BOX.In this manner, all data stored in vehicle-mounted T-BOX are all using SLC framework
It is stored, the data reliability of vehicle-mounted T-BOX can be improved.
The second way, by the way of storing at least two number of bits evidences in each unit memory space, storage
The data of the application program of vehicle-mounted T-BOX.In this manner, due to user data disk partition 403 using MLC or
The framework of TLC, that is to say, that multiple number of bits evidences are stored in a unit memory space, it is thus possible to increase embedded more
The memory capacity of media apparatus.
It should be noted that the data in each disk partition can be before built-in multimedia device factory, by
Technical staff is written to corresponding disk partition according to the function of each disk partition.When the built-in multimedia device is pacified
After vehicle-mounted T-BOX, then corresponding data are read from different disk partition by the processor of vehicle-mounted T-BOX, to realize
The various control functions of vehicle-mounted T-BOX.
It is further to note that above-mentioned multiple disk partition can be understood as the hardware point of built-in multimedia device
Area, or can be understood as physical extent, i.e., the access of each disk partition is independent from each other, the starting of each disk partition
Position is all since 0.Vehicle-mounted T-BOX can first send control instruction, pass through the control before accessing different disk partition
System instruction instruction is operated the disk partition of (read operation or write operation), then again to indicated disk partition into
Row operation.In this case, which can be understood as including disk that above-mentioned 3 disk partition are formed
The device of array.
It in the embodiment of the present application, can be according to the write-in time of data to be stored for high reliability disk subregion 402
High reliability disk subregion 402 is divided into two disk partition by number, respectively the first high reliability disk subregion 4021 and the
Two high reliability disk subregions 4022, as shown in Figure 4.Wherein, it can store write-in in the first high reliability disk subregion 4021
The data of threshold value are written lower than setting for number, can store write-in number in the second high reliability disk subregion 4022 and are higher than the threshold
The data of value.
In the specific implementation process, which can be configured according to actual use demand, for example, the threshold value can
To be set as 10 times or 50 inferior, this is not restricted.It is to be understood that being deposited in the first high reliability disk subregion 4021
It stores up high reliablity and the few data of scene is written, for example, the image file of vehicle-mounted T-BOX, and the second high reliability disk subregion
4022 memory reliabilities are high and the more data of scene are written, for example, for storing vehicle-mounted T-BOX other peripheral hardwares (such as
Wireless Fidelity (wireless fidelity, Wi-Fi) module) configuration parameter etc..
It should be noted that as an example, the first high reliability disk subregion 4021 and the second high reliability disk
Subregion 4022 can be understood as two logical partitions of high reliability disk subregion 402, as shown in Figure 4.That is, first is high
The memory space of the final position of the memory space of reliability disk partition 4021 and the second high reliability disk subregion 4022
Initial position can be continuously.For example, high reliability disk subregion 402 include 100 unit memory spaces, then 0~50
Unit memory space is the corresponding memory space of the first high reliability disk subregion 4021, and 51~100 unit memory spaces are
The corresponding memory space of second high reliability disk subregion 4022.
As another example, the first high reliability disk subregion 4021 and the second high reliability disk subregion 4022 can be with
It is interpreted as two physical extents of the built-in multimedia device.In this case, provided by the embodiments of the present application embedded
Multimedia device can be understood as include 4 disk partition (starting disk partition 401, the first high reliability disk subregion 4021,
Second high reliability disk subregion 4022 and user data disk partition 403) it is formed by the device of disk array, it please refers to
Fig. 5 replaces high reliability disk with the first high reliability disk subregion 4021 and the second high reliability disk subregion 4022
High reliability disk subregion 402 is represented by dashed line in Fig. 5 for subregion 402.
It in the embodiment of the present application, with continued reference to FIG. 4, can be by the starting disk partition of built-in multimedia device
401 are divided into two parts, start disk partition 4011 and spare starting disk partition 4012 based on difference.Main starting disk point
The startup program of vehicle-mounted T-BOX is stored in area 4011 and spare starting disk partition 4012, in this way, working as main starting disk partition
4011 when breaking down, the processor of vehicle-mounted T-BOX can read it from spare starting disk partition 4012 needed for starting journey
Sequence, and then start vehicle-mounted T-BOX, the stability of vehicle-mounted T-BOX can be improved.
It should be noted that main starting disk partition 4011 and spare starting disk partition 4012 can be understood as physics point
Area, it is understood that be logical partition, specifically please refer to the first high reliability disk subregion 4021 and the second high reliability magnetic
The explanation of disk subregion 4022, details are not described herein.In Fig. 4, with main starting disk partition 4011 and spare starting disk partition
For 4012 are logical partition.
It certainly, can also basis in other physical extents of built-in multimedia device provided by the embodiment of the present application
Use demand divides at least one logical partition, and details are not described herein.
It is further to note that above content is said just for the memory module in built-in multimedia device
It is bright, it can also include other devices in the built-in multimedia device in the embodiment of the present application, for example, can be realized erasable equal
The flash controller (flash controller) of the functions such as weighing apparatus, bad block management, Clock management, data access, be used for and other
The communication interface etc. of equipment communication, this is not restricted.
Based on technical concept identical with Fig. 4 or Fig. 5, referring to FIG. 6, being embedded more matchmakers provided by the embodiments of the present application
The exemplary schematic diagram of another kind of body device, can be considered as a kind of specific example of built-in multimedia device shown in fig. 5.
As shown in fig. 6, the built-in multimedia device 600 can be eMMC memory.The eMMC memory includes boot
Subregion, GPP subregion, EUDA subregion and User DATA subregion, wherein in boot subregion and User DATA subregion and such as Fig. 3
Corresponding content is identical, and details are not described herein.It is enhancing storage medium by the attribute of setting GPP subregion and EUDA subregion
(enhanced storage media) attribute, so that GPP subregion and EUDA subregion are switched to SLC framework by MLC architecture.?
The read-only mirror image file of vehicle-mounted T-BOX is stored in GPP subregion, for example, multiple logical partitions are divided into GPP subregion, wherein
One logical partition is for storing quick start (fastboot) image file, and a logical partition is for storing M3BOOT file
Image file (m3image), another logical partition be used for storage system image file etc..Vehicle is stored in EUDA subregion
The high reliability file often changed in T-BOX is carried, for example, multiple logical partitions are divided into EUDA subregion, one of them
For logical partition for storing customer data (custdata), a logical partition is used for storing networking (online) data, and one
For logical partition for storing user data (userdata) etc., Fig. 6 is a kind of citing, is not limited in the embodiment of the present application each
The quantity and effect of logical partition in subregion.
Through test obtain, 55 degrees Celsius (DEG C) at a temperature of, be stored in GPP subregion and EUDA subregion as shown in FIG. 6
In data, when programming/erasable number of unit memory space is greater than 30k, being able to maintain the time greater than 1 year there is not mistake
Accidentally, and in eMMC memory as shown in FIG. 6 the erasing and writing life of each subregion is more than or equal to 10 years, can satisfy vehicle-mounted T-BOX
Use demand.
Based on the same technical idea, referring to FIG. 7, the embodiment of the present application also provides a kind of leading to for vehicle-mounted T-BOX
Believe equipment 700, which includes processor 701 and built-in multimedia device 702, wherein built-in multimedia dress
702 are set, for storing data, which includes the startup program of the vehicle-mounted T-BOX, hardware is set included by the vehicle-mounted T-BOX
The data for the application program that the configuration file and vehicle-mounted T-BOX of standby initialization information, the vehicle-mounted T-BOX are installed, processor
701, for reading the data stored in built-in multimedia device 702, and/or, it is written into built-in multimedia device 702
Data to be stored.
It should be noted that built-in multimedia device 702 is identical as Fig. 4~built-in multimedia shown in fig. 5 device,
Details are not described herein.In the following description, mainly to the connection type of processor 701 and built-in multimedia device 702 into
Row explanation.
In the embodiment of the present application, processor 701 and built-in multimedia device 702 can include but is not limited to following two
Kind connection type:
The first connection type:
Referring to FIG. 7, the outside of the communication equipment of vehicle-mounted T-BOX is arranged in built-in multimedia device 702, pass through communication
Secure digital input and output (secure digital input and output, SDIO) interface of device external, sets with communication
Standby processor 701 connects.In this way, the built-in multimedia device 702 is in addition to can be used for storing such as Fig. 4~shown in fig. 5
Data in built-in multimedia device can also be used to store other data by vehicle-mounted T-BOX, such as storing vehicle-mounted T-
The configuration parameter etc. of other peripheral hardwares (such as Wireless Fidelity (wireless fidelity, Wi-Fi) module) of BOX, so as to
Under the premise of the high storage capacity for meeting vehicle-mounted T-BOX and inexpensive demand, depositing for built-in multimedia device 702 is improved
Store up the utilization rate in space.
Second of connection type:
Referring to FIG. 8, processor 701 and built-in multimedia device 702 are arranged at the inside of the communication equipment, and locate
Reason device 701 and built-in multimedia device 702 are communicated in inside communication equipment using SDIO agreement.In this way, by will be embedding
Enter formula multimedia device 702 and is integrated into inside communication equipment, it can be in the high storage capacity and low cost for meeting vehicle-mounted T-BOX
Under the premise of demand, reduce the size of vehicle-mounted T-BOX.
In the communication equipment described in Fig. 7 or Fig. 8, using built-in multimedia device 702 instead of in the prior art
NAND flash, and the connection type of eMMC memory and processor, more compared with the connection type of NAND flash and processor
Simply.Referring to FIG. 9, NAND flash is by a plurality of signal wire, (including being used for transmission the I/O bus of data, address latch makes
It can (address latch enable, ALE) signal wire, enabled (command latch enable, the CLE) signal of order latch
Line, chip enable (chip enable, CE) signal wire, write enabled (write enable, WE) signal wire, free time/busy output
(ready/busy output, RB) signal wire reads enabled (read enable, RE) signal wire and write-protect (write
Protect, WP) signal wire) it is connect with processor.And eMMC memory only by for synchronous clock signal (clock,
CLK) signal wire, be used for transmission 8 bit bus (DAT0-7) of data and the cmd signal line for Signalling exchange, with processing
Device connection, as shown in Figure 10.As it can be seen that in such as Fig. 7 or communication equipment shown in Fig. 8, due to eliminating processor and NAND
Connecting line between flash, so that the wiring of communication equipment is simpler.
Based on the same technical idea, Figure 11 is please referred to, the embodiment of the present application also provides a kind of for the logical of vehicle-mounted T-BOX
Believe equipment 1100, which includes processor 1101, nand flash memory 1102 and built-in multimedia device 1103,
Wherein, nand flash memory 1102 is used to store the startup program of the vehicle-mounted T-BOX, built-in multimedia device 1103, for storing
Data, the data include the configuration file of the initialization information of hardware device included by the vehicle-mounted T-BOX, the vehicle-mounted T-BOX
With the data of the vehicle-mounted T-BOX application program installed, processor 1101, for reading the startup program in nand flash memory 1102
With the data stored in built-in multimedia device 1103, and/or, be written into built-in multimedia device 1103 to be stored
Data.Wherein, nand flash memory 1102 is located inside communication equipment, is communicated by SDIO agreement with processor 1101, embedded more
Media apparatus 1103 passes through the SDIO interface of communication equipment, connect with processor 1101.
In the embodiment of the present application, built-in multimedia device 1102 can include but is not limited to following three kinds of structures:
The first structure:
Built-in multimedia device 1102 includes high reliability disk subregion and user data disk partition, wherein should
High reliability disk subregion stores vehicle-mounted T- by the way of storing a number of bits evidence in each unit memory space
The configuration file of the initialization information of hardware device included by BOX and vehicle-mounted T-BOX；The user data disk partition, storage
The data for the application program that vehicle-mounted T-BOX is installed.
It should be noted that the high reliability disk subregion and the user data disk partition and Fig. 4~shown in fig. 5 embedding
The corresponding portion entered in formula multimedia device is identical.It is to be understood that shown in built-in multimedia device 1102 and Fig. 4~Fig. 5
Built-in multimedia device except the rest part after deactivation disk partition it is identical, please join for the explanation of each disk partition
Fig. 4~embodiment shown in fig. 5 is examined, details are not described herein.
Second of structure:
Built-in multimedia device 1102 is identical as Fig. 4~structure of built-in multimedia shown in fig. 5 device, that is, includes
Start disk partition, high reliability disk subregion and user data disk partition.But in built-in multimedia device 1102
Starting disk partition in Fig. 4~embodiment shown in fig. 5 starting disk partition store data it is different, embedded more matchmakers
Starting disk partition in body device 1102 does not store the startup program of vehicle-mounted T-BOX, for example, can be used for storing vehicle-mounted T-
The configuration parameter etc. of other peripheral hardwares (such as Wireless Fidelity (wireless fidelity, Wi-Fi) module) of BOX.For each
The explanation of disk partition please refers to Fig. 4~embodiment shown in fig. 5, and details are not described herein.
The third structure:
Built-in multimedia device 1102 is eMMC memory in the prior art as shown in Figure 3, and the eMMC is stored
The partial image file of vehicle-mounted T-BOX and/or the data of application program are stored in device, specific structure is referring to FIG. 3, herein no longer
It repeats.
In the above-mentioned technical solutions, since the partial data in NAND flash is dumped to built-in multimedia device
1102, it therefore, is capable of providing in NAND flash to the free memory increase of user, in this way, not having to change vehicle-mounted T-BOX
Structure can meet user to the capacity requirement of NAND flash, implementation is easy.
Obviously, those skilled in the art can carry out various modification and variations without departing from this Shen to the embodiment of the present application
Please embodiment spirit and scope.In this way, if these modifications and variations of the embodiment of the present application belong to the claim of this application
And its within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of built-in multimedia device, in the communication equipment applied to Vehicle telematics processor T-BOX, feature exists
In, including starting disk partition, high reliability disk subregion and user data disk partition, in which:
The starting disk partition stores institute by the way of storing a number of bits evidence in each unit memory space
State the startup program of T-BOX；
The high reliability disk subregion is deposited by the way of storing a number of bits evidence in each unit memory space
Store up the initialization information of hardware device included by the T-BOX and the configuration file of the T-BOX；
The user data disk partition, stores the data for the application program that the T-BOX is installed.
2. the apparatus according to claim 1, which is characterized in that the high reliability disk subregion includes the first high reliability
Disk partition and the second high reliability disk subregion, the first high reliability disk partitioned storage write-in number is lower than write-in threshold
The data of value, the second high reliability disk partitioned storage write-in number are higher than the data of said write threshold value.
3. device according to claim 1 or 2, which is characterized in that the user data disk partition, using in each list
The mode that at least two number of bits evidences are stored in the memory space of position, stores the number of the configuration file and the application program
According to.
4. device according to any one of claim 1-3, which is characterized in that include that master opens in the starting disk partition
It is stored in movable magnetic disc subregion and spare starting disk partition, the main starting disk partition and the spare starting disk partition
The startup program of the T-BOX, when the main starting disk partition is broken down, the processor of the T-BOX is from described standby
The startup program of the T-BOX is read with starting disk partition.
5. a kind of communication equipment for Vehicle telematics processor T-BOX, which is characterized in that including processor and embedded
Multimedia device, in which:
The built-in multimedia device, for storing data, the data include the startup program of the T-BOX, the T-
The application journey that the initialization information of hardware device included by BOX, the configuration file of the T-BOX and the T-BOX are installed
The data of sequence；
The processor, for reading the data stored in the built-in multimedia device, and/or, to described embedded more
Data to be stored are written in media apparatus；
The built-in multimedia device includes starting disk partition, high reliability disk subregion and user data disk point
Area, in which:
The starting disk partition stores institute by the way of storing a number of bits evidence in each unit memory space
State the startup program of T-BOX；
The high reliability disk subregion, using the side for storing a number of bits evidence in each unit memory space
Formula stores the initialization information of hardware device included by the T-BOX and the configuration file of the T-BOX；
The user data disk partition, stores the data for the application program that the T-BOX is installed.
6. communication equipment according to claim 5, which is characterized in that include main starting disk in the starting disk partition
The T- is stored in subregion and spare starting disk partition, the main starting disk partition and the spare starting disk partition
The startup program of BOX, when the main starting disk partition is broken down, the processor is from the spare starting disk partition
The middle startup program for reading the T-BOX, to start the T-BOX.
7. communication equipment according to claim 5 or 6, which is characterized in that the processor and the built-in multimedia
Device passes through secure digital input and output SDIO connection.
8. a kind of communication equipment for Vehicle telematics processor T-BOX, which is characterized in that including processor, with it is non-
Nand flash memory and built-in multimedia device, in which:
Described and non-nand flash memory, for storing the startup program of the T-BOX；
The built-in multimedia device, for storing data, the data include hardware device included by the T-BOX
The data for the application program that initialization information, the configuration file of the T-BOX and the T-BOX are installed；
The processor, for read it is described with stored in the startup program of non-nand flash memory and the built-in multimedia device
Data, and/or, data to be stored are written in Xiang Suoshu built-in multimedia device；
The built-in multimedia device includes high reliability disk subregion and user data disk partition, the high reliability
Disk partition is stored included by the T-BOX by the way of storing a number of bits evidence in each unit memory space
Hardware device initialization information and the T-BOX configuration file；The user data disk partition, stores the T-
The data for the application program that BOX is installed.
9. the communication equipment according to any one of claim 5-8, which is characterized in that the high reliability disk subregion packet
Include the first high reliability disk subregion and the second high reliability disk subregion, the first high reliability disk partitioned storage write-in
Number is lower than the data of write-in threshold value, and the second high reliability disk partitioned storage write-in number is higher than said write threshold value
Data.
10. the communication equipment according to any one of claim 5-8, which is characterized in that the user data disk partition,
By the way of storing at least two number of bits evidences in each unit memory space, stores the configuration file and described answer
With the data of program.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356141.XA CN110262836A (en) | 2019-04-29 | 2019-04-29 | Built-in multimedia device and communication equipment for Vehicle telematics processor |
| PCT/CN2020/085745 WO2020221053A1 (en) | 2019-04-29 | 2020-04-21 | Embedded multimedia device and communication equipment for vehicle-mounted remote communication processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356141.XA CN110262836A (en) | 2019-04-29 | 2019-04-29 | Built-in multimedia device and communication equipment for Vehicle telematics processor |
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| CN110262836A true CN110262836A (en) | 2019-09-20 |
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| CN201910356141.XA Pending CN110262836A (en) | 2019-04-29 | 2019-04-29 | Built-in multimedia device and communication equipment for Vehicle telematics processor |
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| Country | Link |
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| CN (1) | CN110262836A (en) |
| WO (1) | WO2020221053A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111444152A (en) * | 2020-03-30 | 2020-07-24 | 北京小米移动软件有限公司 | File system, file system access method, electronic device, and storage medium |
| WO2020221053A1 (en) * | 2019-04-29 | 2020-11-05 | 华为技术有限公司 | Embedded multimedia device and communication equipment for vehicle-mounted remote communication processor |
| CN112328561A (en) * | 2020-11-26 | 2021-02-05 | 广东小天才科技有限公司 | Log transmission method, system, electronic equipment and storage medium |
| CN114584550A (en) * | 2021-03-30 | 2022-06-03 | 长城汽车股份有限公司 | Vehicle data uploading and storing method and device, storage medium and vehicle |
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| CN103221927A (en) * | 2010-11-24 | 2013-07-24 | 索尼爱立信移动通讯有限公司 | Dynamically configurable embedded flash memory for electronic devices |
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| CN204305014U (en) * | 2014-12-29 | 2015-04-29 | 武汉烽火信息集成技术有限公司 | A kind of vehicular communication equipment |
| CN106155568B (en) * | 2015-04-03 | 2019-03-01 | 华为技术有限公司 | A kind of method and terminal of partition holding |
| CN208479957U (en) * | 2018-07-24 | 2019-02-05 | 中国航天空气动力技术研究院 | A kind of car-mounted terminal T-BOX and the car networking massaging device towards V2X net connection automobile |
| CN110262836A (en) * | 2019-04-29 | 2019-09-20 | 华为技术有限公司 | Built-in multimedia device and communication equipment for Vehicle telematics processor |
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2019
- 2019-04-29 CN CN201910356141.XA patent/CN110262836A/en active Pending
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- 2020-04-21 WO PCT/CN2020/085745 patent/WO2020221053A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103221927A (en) * | 2010-11-24 | 2013-07-24 | 索尼爱立信移动通讯有限公司 | Dynamically configurable embedded flash memory for electronic devices |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020221053A1 (en) * | 2019-04-29 | 2020-11-05 | 华为技术有限公司 | Embedded multimedia device and communication equipment for vehicle-mounted remote communication processor |
| CN111444152A (en) * | 2020-03-30 | 2020-07-24 | 北京小米移动软件有限公司 | File system, file system access method, electronic device, and storage medium |
| CN112328561A (en) * | 2020-11-26 | 2021-02-05 | 广东小天才科技有限公司 | Log transmission method, system, electronic equipment and storage medium |
| CN114584550A (en) * | 2021-03-30 | 2022-06-03 | 长城汽车股份有限公司 | Vehicle data uploading and storing method and device, storage medium and vehicle |
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| WO2020221053A1 (en) | 2020-11-05 |
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Application publication date: 20190920 |