CN105035120B - A kind of region switching method - Google Patents
A kind of region switching method Download PDFInfo
- Publication number
- CN105035120B CN105035120B CN201510368777.8A CN201510368777A CN105035120B CN 105035120 B CN105035120 B CN 105035120B CN 201510368777 A CN201510368777 A CN 201510368777A CN 105035120 B CN105035120 B CN 105035120B
- Authority
- CN
- China
- Prior art keywords
- communication
- adapter
- mobile authorization
- content
- out time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of region switching method, belong to Train Control Technology field, with solve mobile unit only have a radio communication device it is available in the case of, train passes through operational efficiency low technical problem during ZC borderline regions.The region switching method includes：After receiving the switching command from ground transponder, it is determined that wireless time-out time piece；In a wireless time-out time piece and in the range of current mobile authorization, pause and the communication for transferring ZC；In next wireless time-out time piece, the communication with adapter ZC is set up, train position is reported to the adapter ZC, and at the end of the wireless time-out time piece, pause and the communication of the adapter ZC preserve the Content of Communication with the adapter ZC；According to the Content of Communication with the adapter ZC, next mobile authorization is determined；Judge whether the current mobile authorization and next mobile authorization connect, when determining the current mobile authorization and next mobile authorization connects, carry out region switching.
Description
Technical field
The present invention relates to Train Control Technology field, specifically, it is related to a kind of region switching method.
Background technology
With developing rapidly for urban track traffic, based on radio CBTC system (Communication
Based Train Control, abbreviation CBTC) increasingly it is widely applied.Zone controller (Zone
Controller, abbreviation ZC) be CBTC systems kernel subsystems, the exact position and interlocking that it is reported according to communication train are converged
Meter shaft occupancy/free time, track switch and the semaphore state of report, are that the train of each communication calculates mobile authorization (Movement
Authority, abbreviation MA), control safe train operation.
In longer circuit, can typically arrange multiple ZC, during train driving, by two zone controllers it
Between interaction train and trackside information, co- controlling train safety, at a high speed, seamlessly through the frontier district of two zone controllers
Domain, this process is referred to as region switching.In the present invention, the ZC that train will be rolled away from is referred to as transfer ZC, what train will drive into
ZC is referred to as adapter ZC.
The mobile unit of existing CBTC trains is typically all equipped with two available wireless communicators, two radio communication dresses
Put while work, mutually hot standby, be responsible for for one communicating that another responsible communicates with adapter ZC with transferring ZC.Mobile unit integrates two
The MA that individual ZC is sent, borderline region safe efficient, seamlessly through two ZC.
But, the mobile unit of CBCT trains is when only one of which radio communication device is available, and the radio communication device begins
Communicated eventually with transferring ZC.Stopped when train enters ZC borderline regions, switch to pilot steering pattern, train is driven by train operator
By ZC borderline regions, CBTC patterns are switched back into according still further to operating process afterwards.In this case, train passes through ZC junctional areas
Operational efficiency it is low, while increase the workload of train operator, have influence on entire train, the operation of even whole piece circuit
Efficiency.
The content of the invention
It is an object of the invention to provide a kind of region switching method, only has a radio communication dress to solve mobile unit
Put it is available in the case of, train passes through operational efficiency low technical problem during ZC borderline regions.
The invention provides a kind of region switching method, this method includes：
After receiving the switching command from ground transponder, it is determined that wireless time-out time piece；
In a wireless time-out time piece and in the range of current mobile authorization, pause and the communication for transferring ZC；
In next wireless time-out time piece, the communication with adapter ZC is set up, train position is reported to the adapter ZC,
And at the end of the wireless time-out time piece, pause and the communication of the adapter ZC preserve the Content of Communication with the adapter ZC；
According to the Content of Communication with the adapter ZC, next mobile authorization is determined；
Judge whether the current mobile authorization and next mobile authorization connect, awarded when determining the current movement
When power and next mobile authorization connect, region switching is carried out.
Wherein, in a wireless time-out time piece and in the range of current mobile authorization, pause is with transferring the logical of ZC
During letter, this method also includes：
Preserve the communications status and Content of Communication with the transfer ZC.
Wherein, when preserving the Content of Communication with the adapter ZC, this method also includes：
Preserve the communications status with the adapter ZC.
Wherein, judge whether the current mobile authorization and next mobile authorization connect, it is described current when determining
When mobile authorization and next mobile authorization are separated, this method also includes：
S1, in a wireless time-out time piece, according to being preserved with the communications status of the transfer ZC and in communicating
Hold, recover the communication with the transfer ZC, train position is reported to the transfer ZC, and according to current with the transfer ZC's
Content of Communication, updates current mobile authorization, at the end of the wireless time-out time piece, pause and the communication of the transfer ZC, protects
Deposit and update the communications status and Content of Communication with the transfer ZC；
S2, in next wireless time-out time piece, according to the communications status and communication preserved with the adapter ZC
Content, recovers the communication with the adapter ZC, and train position is reported to the adapter ZC, and according to the current and adapter ZC
Content of Communication, update next mobile authorization, at the end of the wireless time-out time piece, pause and the communication of the adapter ZC,
Preserve and update the communications status and Content of Communication with the adapter ZC；
S3, judge the current mobile authorization after updating and update after next mobile authorization whether connect, when determining more
When connecting between next mobile authorization after current mobile authorization and renewal after new, region switching is carried out；Otherwise re-execute
S1 and S2.
Wherein, this method also includes：
Into after the corresponding regions of the adapter ZC, the communication with the transfer ZC is terminated.
Wherein, the wireless time-out time piece is equal to the duration and ground transponder channel radio of current mobile authorization
Smaller in both maximum communication durations of letter.
Wherein, after receiving the switching command from ground transponder, it is determined that before wireless time-out time piece, this method
Also include：
Set safety allowance duration.
Wherein, the wireless time-out time piece is equal to the duration and ground transponder channel radio of current mobile authorization
Smaller and the difference of safety allowance duration in both maximum communication durations of letter.
Present invention offers following beneficial effect：The embodiments of the invention provide a kind of region switching method, this method is
Realized based on the mobile unit only with an available radio communication device.The region switching method causes only wireless
Communicator timesharing communicates with transferring ZC and adapter ZC, obtains current MA and next MA respectively from two ZC, and protecting
When demonstrate,proving current MA and next MA and connecting, region switching is carried out.Train whole can also be used in an only radio communication device
CBTC pattern automatic Pilots, improve operational efficiency of the train by ZC junctional areas, it is ensured that entire train, even sliver
The operational efficiency on road.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below makees the accompanying drawing in being described to embodiment
It is simple to introduce：
Fig. 1 is the schematic flow sheet one of region switching method provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet two of region switching method provided in an embodiment of the present invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the present invention is applied whereby
Technological means solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.Need explanation
As long as not constituting each embodiment in conflict, the present invention and each feature in each embodiment can be combined with each other,
The technical scheme formed is within protection scope of the present invention.
The embodiments of the invention provide the region switching method that a kind of mobile unit by CBTC systems is performed, this is vehicle-mounted to set
The radio communication device that only one communicates with ZC in standby can use, it is meant that the mobile unit is only capable of communicating with a ZC, it is impossible to
Communicated simultaneously with two ZC.Based on above-mentioned premise, as shown in figure 1, this method includes：
Step S101, receive the switching command from ground transponder after, it is determined that wireless time-out time piece.
Ground transponder is a kind of point type equipment for transmitting information to train for ground, is divided into fixed (passive) transponder
With variable (active) transponder.When train is by above ground transponder, ground transponder receives the mobile unit of train
After the electromagnetic energy that point information reception antenna is sent, electromagnetic energy is converted to working power by ground transponder, starts electronics
Circuit work, prestore or line side electronic equipment (Lineside Electronic Unit, abbreviation LEU) transmission
Transmitting message is cycled through away, until electromagnetic energy disappears, i.e., train sails out of ground transponder.
In the embodiment of the present invention, the ZC that train will be sailed out of is referred to as transferring ZC, and the ZC that train will be driven into is referred to as connecing
Pipe ZC.The transmitting message of ground transponder includes meaning that train will enter the switching command of adapter ZC control area,
Mobile unit can be recognized from the switching command needs the adapter ZC communicated which is.
The mobile unit of train determines what radio communication was related to after the switching command from ground transponder is received
Wireless time-out time piece, wireless time-out time piece define mobile unit with ZC on the premise of holding communicates, communication can be suspended
Maximum duration.As long as mobile unit and ZC communication pause duration are less than or equal to wireless time-out time piece, mobile unit is just
Communications status, Content of Communication with ZC before pause communication can be connected at any time, continue the communication with ZC.
Step S102, in a wireless time-out time piece and in the range of current mobile authorization, pause with transfer ZC
Communication.
When train is travelled in the region for transferring ZC, the communication with transfer ZC is remained, provide train position to transfer ZC
The relevant information such as put, it is train calculating to transfer ZC by the status information according to train position and circuitry obstacle thing and interlocking situation
The MA for transferring ZC calculating is referred to as current MA in MA, the embodiment of the present invention.MA is that train drives safely to next parking spot
A required duly authorized, realizes the personal distance control of train.Train safe separation distance be according to maximum allowable speed,
The information such as current waypoint location, circuit are calculated, and information is refreshed by dynamic circulation.
In order to ensure that train after mobile unit suspends the communication with transferring ZC, remains able to continuous service for a period of time,
With reference to definition above to wireless time-out time piece, the wireless time-out time piece in the embodiment of the present invention, which should be less than or equal to, works as
The duration of preceding mobile authorization.Therefore, in embodiments of the present invention, wireless time-out time piece is equal to holding for current mobile authorization
Continuous duration and the maximum communication duration of ground transponder radio communication with the maximum of ground transponder radio communication (when continuing
It is long) smaller in both.Under the premise of this, communication of the mobile unit of the train pause with transferring ZC, in order to
Recover after communication pause and continue the communication with transferring ZC, suspend with transferring while ZC communicates, it is necessary to preserve with transferring ZC's
Communications status and Content of Communication.The timesharing that mobile unit can be set up with transferring ZC and adapter ZC based on wireless time-out time piece is led to
Letter, when realization only has a radio communication device available, also ensure that train is efficient, seamless, safely carry out region and cuts
Change.
Step S103, in next wireless time-out time piece, set up with adapter ZC communication, to adapter ZC report trains
Position, and at the end of the wireless time-out time piece, pause and adapter ZC communication preserve the Content of Communication with adapter ZC.
The mobile unit of train immediately begins to set up the communication with adapter ZC, now after communication of the pause with transfer ZC
Start the timing of next wireless time-out time piece.
Train equally submits the relevant informations such as train position in the case where being communicated with adapter ZC to adapter ZC.With transfer
ZC is similar, and the status information according to train position and circuitry obstacle thing and interlocking situation are that train calculates MA by adapter ZC.
The MA that ZC calculating is will take in the embodiment of the present invention is referred to as next MA.
At the end of the wireless time-out time piece, mobile unit pause and adapter ZC communication preserve logical with adapter ZC
Believe content.In order to recover and continue to communicate, protect with adapter ZC suspending with adapter ZC communication, mobile unit after pause
While depositing the Content of Communication with adapter ZC, in addition it is also necessary to preserve the communications status with adapter ZC.
Step S104, basis and adapter ZC Content of Communication, determine next mobile authorization.
The mobile unit of train determines that adapter ZC is corresponding next according to the Content of Communication with adapter ZC of preservation
MA。
Step S105, judge whether current mobile authorization and next mobile authorization connect, when determining current mobile authorization
When connecting with next mobile authorization, region switching is carried out.
Due to every MA correspondences stretch footpath, in order to ensure train can it is efficient, seamless, safely carry out region switching,
Mobile unit needs to ensure that correspondence transfers ZC current MA and connects to adapter ZC next MA, i.e., current MA and next
MA path is that have part overlapping or seamless connection just.If current MA connects with next MA, the mobile unit of train just can be with
One is completely form across transferring ZC, the MA into adapter ZC, it is ensured that train can be according to the MA successfully safely, efficiently
By transferring ZC borders, into adapter ZC compass of competency.
It is determined that train have been provided with it is efficient, seamless, safely carry out region switching condition after, train according to transfer ZC
The MA sent respectively to mobile unit with adapter ZC, forms a MA across ZC borders, completes safe efficient, seamless ZC
Switching.After train enters the region of adapter ZC administrations, radio communication of the mobile unit cut-out with transferring ZC is only kept and adapter
ZC radio communication, while will take over ZC as master control ZC.In adapter ZC region, train remains logical with adapter ZC
Letter, when needing to carry out region switching next time.
If conversely, in step S105, when determining current mobile authorization and next mobile authorization is separated, the car of train
Carrying equipment needs priority to recover the communication with transferring ZC and adapter ZC, updates the corresponding current MA of transfer ZC corresponding with adapter ZC
Next MA.Specifically, as shown in Fig. 2 this method also includes：
Step S201, in the wireless time-out time piece, according to being preserved and the communications status for transferring ZC and communication
Content, recovery and the communication for transferring ZC, train position is reported to ZC is transferred, and according to Content of Communication currently with transfer ZC,
Current MA is updated, at the end of the wireless time-out time piece, pause and the communication for transferring ZC are preserved and updated with transferring the logical of ZC
Letter state and Content of Communication.
Step S202, in next wireless time-out time piece, according to being preserved and adapter ZC communications status and logical
Believe content, recover with adapter ZC communication, to adapter ZC report train positions, and according to currently with adapter ZC communication
Hold, update next MA, at the end of the wireless time-out time piece, pause and adapter ZC communication are preserved and updated and adapter ZC
Communications status and Content of Communication.
Step S203, judge update after current MA and update after next MA whether connect, when determine update after
When connecting between current MA and next MA after updating, region switching is carried out；Otherwise S201 and S202 are re-executed.
The ZC of CBTC systems can generally be set using media such as radio communication, ground cross-inductive loop wire, waveguides to vehicle-mounted
Standby transmission information.In order to ensure communication of the mobile unit with ZC not by external condition restriction and accidental interruption, in the present invention
In embodiment, it is determined that before wireless time-out time piece, in addition it is also necessary to set safety allowance duration.Now, wireless time-out time piece
Duration equal to current mobile authorization, with the smaller in both maximum communication durations of ground transponder radio communication with
The difference of safety allowance duration.Safety allowance duration is true according to factors such as telecommunication media, the communication modes of ZC and mobile unit
Fixed.
More than, the embodiments of the invention provide a kind of region switching method, this method is based on available only with one
What the mobile unit of radio communication device was realized.The region switching method causes only radio communication device timesharing with transferring ZC
With adapter ZC communications, the current MA and next MA respectively from two ZC are obtained, and connect in the current MA and next MA of guarantee
When, carry out region switching.Train also whole can use CBTC pattern automatic Pilots, carry in an only radio communication device
High operational efficiency of the train by ZC junctional areas, it is ensured that the operational efficiency of entire train, even whole piece circuit.
While it is disclosed that embodiment as above, but described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (4)
1. a kind of region switching method, it is characterised in that including：
After receiving the switching command from ground transponder, it is determined that wireless time-out time piece；
In a wireless time-out time piece and in the range of current mobile authorization, pause and the communication for transferring ZC；
In next wireless time-out time piece, the communication with adapter ZC is set up, to adapter ZC report train positions, and
At the end of this is wireless time-out time piece, pause and the communication of the adapter ZC, preserve and the adapter ZC Content of Communication；
According to the Content of Communication with the adapter ZC, next mobile authorization is determined；
Judge whether the current mobile authorization and next mobile authorization connect, when determine the current mobile authorization and
When next mobile authorization connects, region switching is carried out；
In a wireless time-out time piece and in the range of current mobile authorization, when pause and transfer ZC communication, also wrap
Include：Preserve the communications status and Content of Communication with the transfer ZC；
When preserving the Content of Communication with the adapter ZC, in addition to：Preserve the communications status with the adapter ZC；
Judge whether the current mobile authorization and next mobile authorization connect, when determine the current mobile authorization and
When next mobile authorization is separated, in addition to：
S1, in a wireless time-out time piece, it is extensive according to the communications status and Content of Communication with the transfer ZC preserved
The multiple communication with the transfer ZC, train position is reported to the transfer ZC, and according to current and transfer ZC communication
Content, updates current mobile authorization, at the end of the wireless time-out time piece, pause and the communication of the transfer ZC, preserves simultaneously
Update the communications status and Content of Communication with the transfer ZC；
S2, in next wireless time-out time piece, according to the communications status and Content of Communication with the adapter ZC preserved,
Recover the communication with the adapter ZC, train position is reported to the adapter ZC, and according to current logical with the adapter ZC
Believe content, update next mobile authorization, at the end of the wireless time-out time piece, pause and the communication of the adapter ZC are preserved
And renewal and the communications status and Content of Communication of the adapter ZC；
S3, judge update after current mobile authorization and update after next mobile authorization whether connect, after renewal is determined
Current mobile authorization and next mobile authorization after updating when connecting, carry out region switching；Otherwise S1 and S2 are re-executed；
Wherein, wireless time-out time piece is equal to the duration of current mobile authorization, the maximum with ground transponder radio communication
Smaller in both communication times.
2. according to the method described in claim 1, it is characterised in that also include：
Into after the corresponding regions of the adapter ZC, the communication with the transfer ZC is terminated.
3. method according to claim 2, it is characterised in that after receiving the switching command from ground transponder,
It is determined that before wireless time-out time piece, in addition to：
Set safety allowance duration.
4. method according to claim 3, it is characterised in that
When wireless time-out time piece is equal to the duration of current mobile authorization, maximum communication with ground transponder radio communication
Smaller and the difference of safety allowance duration in both long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368777.8A CN105035120B (en) | 2015-06-26 | 2015-06-26 | A kind of region switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368777.8A CN105035120B (en) | 2015-06-26 | 2015-06-26 | A kind of region switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105035120A CN105035120A (en) | 2015-11-11 |
| CN105035120B true CN105035120B (en) | 2017-10-24 |
Family
ID=54442238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510368777.8A Active CN105035120B (en) | 2015-06-26 | 2015-06-26 | A kind of region switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105035120B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6657391B2 (en) * | 2016-05-12 | 2020-03-04 | 株式会社京三製作所 | Ground equipment |
| CN107878507B (en) * | 2016-12-19 | 2018-12-21 | 比亚迪股份有限公司 | Mobile authorization generation method, the device and system of train |
| CN106697001B (en) * | 2016-12-21 | 2018-10-30 | 交控科技股份有限公司 | For the train mobile authorization processing method across line condition |
| CN107139974B (en) * | 2017-03-21 | 2019-03-01 | 卡斯柯信号有限公司 | Train transfers management method between zone controller based on train automatic protection |
| CN107738667B (en) * | 2017-10-16 | 2020-02-28 | 交控科技股份有限公司 | Method and device for calculating cross-overlapping area train position in CBTC (communication based train control) system |
| CN111169511B (en) * | 2018-11-21 | 2021-10-08 | 通号城市轨道交通技术有限公司 | Switching method and device for train control right under CBTC (communication based train control) system |
| CN112874577B (en) * | 2019-11-29 | 2022-05-13 | 比亚迪股份有限公司 | Train management method and system |
| CN111874044B (en) * | 2020-06-28 | 2022-04-19 | 通号城市轨道交通技术有限公司 | Method for transferring cross-region overlapping area of vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5823481A (en) * | 1996-10-07 | 1998-10-20 | Union Switch & Signal Inc. | Method of transferring control of a railway vehicle in a communication based signaling system |
| CN101927775B (en) * | 2010-08-18 | 2012-07-11 | 北京交大资产经营有限公司 | Safety protection method of CBTC (Communication Based Train Control) system during crossing control area |
| CN102176773A (en) * | 2010-12-30 | 2011-09-07 | 上海华为技术有限公司 | Method, device and system for TSR (temporary speed restriction) processing |
| CN103029723B (en) * | 2012-12-24 | 2015-04-08 | 北京交控科技有限公司 | Mixing method of movement authorities during zone switching |
-
2015
- 2015-06-26 CN CN201510368777.8A patent/CN105035120B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105035120A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105035120B (en) | A kind of region switching method | |
| CN105035126B (en) | A kind of mobile unit and train communication system | |
| CN106915367B (en) | A kind of train control system | |
| CN107685749A (en) | A kind of virtually connecting based on truck traffic hangs small marshaling control system and method | |
| CN102387953B (en) | Shifting method and device for train control system | |
| CN106741013A (en) | The control method of onboard system, CBTC control systems and CTCS control systems switching | |
| CN108128330A (en) | A kind of processing method of the driving mode of handoff path traffic train | |
| CN106394617A (en) | Train head and end location redundancy system and train head and end location redundancy method | |
| CN106560372B (en) | A kind of occlusion mode adaptive control system based on Vehicle Controller | |
| CN102248958A (en) | Railway train safety monitoring processing method based on radio block center (RBC) | |
| CN105083339B (en) | A kind of two ends load the method for turning back automatically of the CBTC trains of mobile unit | |
| CN102233886A (en) | CTCS (China Train Control System)-2 train operation control system | |
| CN102019944A (en) | Train operation control method, automatic train protection (ATP) system and China train control system 3 (CTCS-3) control unit | |
| CN108177662B (en) | ATP speed limit curve fusion method for different train operation modes | |
| CN103763679A (en) | Track traffic operation control and train-ground wireless communication integrated system and method | |
| CN110049468B (en) | Train-ground wireless communication system of medium-high speed maglev train | |
| CN106255615B (en) | Temporary train speed limiting device | |
| CN103010267A (en) | Self-adaptive blocking train running control equipment, system and method | |
| CN107139974A (en) | Train transfers management method between zone controller based on train automatic protection | |
| CN102237891A (en) | Transponder ground equipment | |
| CN102887156A (en) | Railway signalling system and on-board signalling system | |
| CN102255948B (en) | Turnout transponder message processing method and train control onboard equipment | |
| CN113911181B (en) | Train control system compatible method based on virtual marshalling | |
| CN105882689B (en) | Expanding element in inter-city passenger rail autonomy-oriented row control vehicle-mounted system | |
| WO2013065514A1 (en) | Train control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |