CN109544964A - A kind of course line Transmission system of automatic driving car - Google Patents
A kind of course line Transmission system of automatic driving car Download PDFInfo
- Publication number
- CN109544964A CN109544964A CN201811635585.9A CN201811635585A CN109544964A CN 109544964 A CN109544964 A CN 109544964A CN 201811635585 A CN201811635585 A CN 201811635585A CN 109544964 A CN109544964 A CN 109544964A
- Authority
- CN
- China
- Prior art keywords
- course line
- module
- automatic driving
- route information
- driving car
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- 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.)
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
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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
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
Abstract
The present invention relates to a kind of course line Transmission system of automatic driving car, including transmitting terminal and receiving end, receiving end is arranged on automatic driving car, connect the control system of automatic driving car, it is characterized in that, transmitting terminal includes data compressing module, receiving end includes data decompression module and cache module；Data compressing module gives route information boil down to binary data transmission to data decompression module, and binary data decompression is reduced to the control system that route information is transmitted to automatic driving car by data decompression module；For cache module for caching the high route information of frequency of use, control system calls directly the route information in cache module.Compared with prior art, the huge data in route information are converted to binary compressed format by the present invention, greatly improve the efficiency of data transmission；The calling efficiency that course line is improved by cache module, avoids the read-write repeatedly of receiving end storage medium from causing to be lost.
Description
Technical field
The present invention relates to automatic driving car fields, more particularly, to a kind of course line Transmission system of automatic driving car.
Background technique
The arrival of big data era has pushed the research of intelligent driving automobile, unmanned becoming as Shape Of Things To Come development
Gesture will certainly bring a change to automobile industry.In life from now on, for example unpiloted tick-over vehicle also will gradually
Gradually replace existing road surface sprinkling truck, sweeper etc., unpiloted tick-over vehicle will be travelled according to preset route
Work, but it is during course line is transmitted, typically just using common total according to transmission, and the data volume in vehicle course line
Huge, common transmission mode is bound to cause inefficiency, influences unpiloted convenience.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of automatic driving cars
Course line Transmission system.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of course line Transmission system of automatic driving car, including transmitting terminal and receiving end, the receiving end are arranged in nothing
People drives on vehicle, connects the control system of automatic driving car, the transmitting terminal includes data compressing module, the receiving end
Including data decompression module and cache module；
The data compressing module gives route information boil down to binary data transmission to data decompression module, described
Binary data decompression is reduced to the control system that route information is transmitted to automatic driving car by data decompression module；
For the cache module for caching the high route information of frequency of use, the control system calls directly caching
Route information in module.
Further, the route information compression step are as follows:
S1. public attribute keyword in the course data file of XML or JSON format is extracted using HPark algorithm builds up rope
Draw, the corresponding value of keyword is spliced in order, centre is separated with separator；
S2. public attribute keyword is placed on the beginning of array as Template, with the value connected according to nested
Mode is spliced to form readable JSON file；
S3. a string of binary data files are converted by the JSON file compressed using amp tool.
Further, the cache module selects the LRU based on capacity using bypass cache mode, cache management strategy
Algorithm stores the route information to cache module, when a certain vehicle is more than that setting value calls same route information if slow
Storing module off-capacity deletes the least route information of this vehicle call number recently.
Further, the transmitting terminal further includes course line inspection module, and the course line inspection module is by the boat of required transmission
Line information carries out pre-execution, detects its integrality and feasibility.
Further, course line described in the course line inspection module combination digital navigation map pre-execution, judges the finger in course line
Whether order is consistent, whether expires the demand of vehicle foot cruising ability and whether meets the condition travelled on institute's planning road.
Further, the transmitting terminal further includes alarm modules, described when the course line of required transmission does not pass through pre-execution
Alarm modules response occur alarm, terminate the transmission in course line.
Further, the route information includes unmanned vehicle location information, path space information and traffic information.
Compared with prior art, the invention has the following advantages that
1, the huge data in route information are converted to binary compressed format by data compressing module by the present invention,
This compress mode not only can to avoid same keyword repeat occupied space, but also binary data do not need existing XML or
Format symbols and separator, the decrement such as quotation marks, comma or bracket of redundancy can reach 50% or more in JSON format, greatly
Improve the efficiency of data transmission.
2, the high route information of transmission frequency is saved as cache file by cache module by the present invention, works as automatic driving car
Control system can rapidly be called when needing without being spread out of again from transmitting terminal, improve the calling efficiency in course line,
Meanwhile the read-write repeatedly of receiving end storage medium being avoided to cause to be lost.
3, course line inspection module of the invention judges the correctness and feasibility in course line by pre-execution course line, avoids vehicle
It breaks down when driving by course line or accident, improves the safety and reliability of unmanned vehicle traveling.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is workflow schematic diagram of the invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, present embodiments providing a kind of course line Transmission system of automatic driving car, including transmitting terminal and reception
End.Transmitting terminal is cloud server, and route information packet to be transmitted is sent to receiving end by wireless telecommunications；Receiving end is by believing
Number reception device and computer composition.Receiving end is arranged on automatic driving car, connects the control system of automatic driving car.It is described
Transmitting terminal include course line inspection module, alarm module and data compressing module, receiving end includes data decompression module and caching
Module.
Data compressing module gives route information boil down to binary data transmission to data decompression module, the data solution
Binary data decompression is reduced to the control system that route information is transmitted to automatic driving car by die block；In general, server with
Data are transmitted between client and use XML or JSON format, and data volume is huge, this class file is saved as binary system by the present embodiment
Data, decrement can reach 50% or more.
Method particularly includes: it is closed first with public attribute in existing HPark algorithm (header compression algorithm) extraction document
Keyword builds up index, and the corresponding value of keyword is spliced in order, and centre is separated with separator；By public attribute keyword
The beginning of array is placed on as Template, is spliced to form readable JSON file according to regional model with the value connected.
Finally a string of binary data files are converted by the JSON file compressed using amp tool.Number, boolean in JSON file
It is converted into binary system, character is converted into the corresponding binary data of ASCII character；The length sum number of each field is recorded simultaneously
Foundation according to type, as decompression.
Cache module is made of high speed hard-disk, calls frequent route information for storing.The control system is direct
The route information in cache module is called, route information includes unmanned vehicle location information, path space information and traffic information etc.
Data.Since receiving end is on each vehicle, the capacity of cache module is relatively limited, and cache mode selects the most common bypass caching
Mode, cache management strategy selection based on capacity lru algorithm (recently most it is preceding using caching life cycle algorithm): when a certain vehicle not
When only once calling same route information, which is stored to cache module, it, will most if cache module off-capacity
Nearly that least route information of this vehicle call number is deleted.
The route information of required transmission is carried out pre-execution by course line inspection module, detects its integrality and feasibility.State boat
Course line described in X -ray inspection X module combination digital navigation map pre-execution judges whether the instruction in course line is consistent, whether meets vehicle
The demand of cruising ability and whether meet the condition travelled on institute's planning road.Specifically, course line inspection module can be examined
It tests whether course line has self-contradictory instruction, such as is simultaneously emitted by the instruction of left-hand rotation and right-hand rotation at same crossing.The course line inspection
Testing module may determine that can vehicle remaining capacity travel whole course lines, if cannot if plan course line again or combine electronically
Figure first travels the charge point to course line.The course line inspection module can also judge whether the vehicle for downloading course line meets institute
It seeks road driving requirements, if vehicle width is not more than the width at the most narrow place of road, the course line that overall height is required and planned not higher than limit for height
Whether the road etc. that electronic map on shows is deviateed.
Alarm modules alarm flow is as follows: when the course line of required transmission does not pass through pre-execution, the alarm modules response
Alarm occurs, suspends the transmission in course line.Warning system is lower for severity to the severity divided rank to go wrong
The problem of such as vehicle continuation of the journey problem or to travel the course line used time too long etc., can report user, voluntarily be judged whether by user
Continue to execute the course line；For example contradictory instruction of problem higher for menace level or selected vehicle do not meet the sections of road
Condition etc. directly terminates downloading, reports management system and plan course line again.
As shown in Fig. 2, the specific workflow of the present embodiment is as follows:
Firstly, course line inspection module combination electronic map pre-execution course line to be transmitted, judges whether there is problem.If depositing
Alarm system is then triggered in problem, problem then compresses route information if it does not exist.
If triggering alarm system, alarm system decision problem grade is reported user if grade is lower, is voluntarily sentenced by user
It is disconnected whether to continue to execute the course line；If higher ranked, downloading is directly terminated, management system is reported and plans course line again.
Route information to be sent is by data compressing module boil down to binary data file, by the receiving end for being located at vehicle
It receives and is decompressed.
The cache module of receiving end stores the route information repeatedly downloaded to cache module, if cache module capacity is not
Foot then deletes a period of time least route information of vehicle call number recently.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of course line Transmission system of automatic driving car, including transmitting terminal and receiving end, the receiving end is arranged at nobody
It drives on vehicle, connects the control system of automatic driving car, which is characterized in that the transmitting terminal includes data compressing module, institute
The receiving end stated includes data decompression module and cache module；
The data compressing module gives route information boil down to binary data transmission to data decompression module, the data
Binary data decompression is reduced to the control system that route information is transmitted to automatic driving car by decompression module；
For the cache module for caching the high route information of frequency of use, the control system calls directly cache module
In route information.
2. a kind of course line Transmission system of automatic driving car according to claim 1, which is characterized in that the route information
Compression step are as follows:
S1. public attribute keyword in the course data file of XML or JSON format is extracted using HPark algorithm builds up index,
The corresponding value of keyword is spliced in order, centre is separated with separator；
S2. public attribute keyword is placed on the beginning of array as Template, with the value that connects according to regional model
It is spliced to form readable JSON file；
S3. a string of binary data files are converted by the JSON file compressed using amp tool.
3. a kind of course line Transmission system of automatic driving car according to claim 1, which is characterized in that the caching mould
Block selects the lru algorithm based on capacity using bypass cache mode, cache management strategy, when a certain vehicle is called more than setting value
When same route information, which is stored to cache module, if cache module off-capacity, deletes this vehicle recently
The least route information of call number.
4. a kind of course line Transmission system of automatic driving car according to claim 1, which is characterized in that the transmitting terminal
It further include course line inspection module, which carries out pre-execution for the route information of required transmission, detects its integrality
And feasibility.
5. a kind of course line Transmission system of automatic driving car according to claim 4, which is characterized in that examine in the course line
Course line described in module combination digital navigation map pre-execution judges whether the instruction in course line is consistent, whether expires vehicle continuation of the journey energy enough
The demand of power and whether meet the condition travelled on institute's planning road.
6. a kind of course line Transmission system of automatic driving car according to claim 4, which is characterized in that the transmitting terminal
It further include alarm modules, when the course line of required transmission does not pass through pre-execution, the alarm modules response occurs alarm, terminates boat
The transmission of line.
7. a kind of course line Transmission system of automatic driving car according to claim 1, which is characterized in that the course line letter
Breath includes unmanned vehicle location information, path space information and traffic information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635585.9A CN109544964A (en) | 2018-12-29 | 2018-12-29 | A kind of course line Transmission system of automatic driving car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635585.9A CN109544964A (en) | 2018-12-29 | 2018-12-29 | A kind of course line Transmission system of automatic driving car |
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| Publication Number | Publication Date |
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| CN109544964A true CN109544964A (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811635585.9A Pending CN109544964A (en) | 2018-12-29 | 2018-12-29 | A kind of course line Transmission system of automatic driving car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023070238A1 (en) * | 2021-10-25 | 2023-05-04 | 华为技术有限公司 | Vehicle resource access method and apparatus, and vehicle control unit |
| CN116233247A (en) * | 2023-04-25 | 2023-06-06 | 合肥智鼎科技服务有限公司 | Data transmission processing system with preprocessing performance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079889A (en) * | 2007-06-26 | 2007-11-28 | 中兴通讯股份有限公司 | Data transmission system and its transmission method |
| CN107103655A (en) * | 2017-05-23 | 2017-08-29 | 郑州云海信息技术有限公司 | Car steering mutual assistance system and method based on cloud computing |
| CN107305740A (en) * | 2016-04-21 | 2017-10-31 | 斑马网络技术有限公司 | Road conditions method for early warning, equipment, server, control device and operating system |
| CN107426307A (en) * | 2017-07-11 | 2017-12-01 | 北京潘达互娱科技有限公司 | Data processing method and device |
| DE102017126925A1 (en) * | 2016-11-17 | 2018-05-17 | GM Global Technology Operations LLC | Automated co-pilot control for autonomous vehicles |
-
2018
- 2018-12-29 CN CN201811635585.9A patent/CN109544964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079889A (en) * | 2007-06-26 | 2007-11-28 | 中兴通讯股份有限公司 | Data transmission system and its transmission method |
| CN107305740A (en) * | 2016-04-21 | 2017-10-31 | 斑马网络技术有限公司 | Road conditions method for early warning, equipment, server, control device and operating system |
| DE102017126925A1 (en) * | 2016-11-17 | 2018-05-17 | GM Global Technology Operations LLC | Automated co-pilot control for autonomous vehicles |
| CN107103655A (en) * | 2017-05-23 | 2017-08-29 | 郑州云海信息技术有限公司 | Car steering mutual assistance system and method based on cloud computing |
| CN107426307A (en) * | 2017-07-11 | 2017-12-01 | 北京潘达互娱科技有限公司 | Data processing method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023070238A1 (en) * | 2021-10-25 | 2023-05-04 | 华为技术有限公司 | Vehicle resource access method and apparatus, and vehicle control unit |
| CN116233247A (en) * | 2023-04-25 | 2023-06-06 | 合肥智鼎科技服务有限公司 | Data transmission processing system with preprocessing performance |
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Application publication date: 20190329 |