CN112416247A - Data visual downloading control system and method based on network embedded system - Google Patents

Data visual downloading control system and method based on network embedded system Download PDF

Info

Publication number
CN112416247A
CN112416247A CN202011236462.5A CN202011236462A CN112416247A CN 112416247 A CN112416247 A CN 112416247A CN 202011236462 A CN202011236462 A CN 202011236462A CN 112416247 A CN112416247 A CN 112416247A
Authority
CN
China
Prior art keywords
data block
data
downloading
event recorder
download
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011236462.5A
Other languages
Chinese (zh)
Inventor
李年锁
颜罡
罗显光
叶锋
郭彦每
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Zhuzhou Locomotive Co Ltd
Original Assignee
CRRC Zhuzhou Locomotive Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRRC Zhuzhou Locomotive Co Ltd filed Critical CRRC Zhuzhou Locomotive Co Ltd
Priority to CN202011236462.5A priority Critical patent/CN112416247A/en
Publication of CN112416247A publication Critical patent/CN112416247A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/12Protecting executable software
    • G06F21/121Restricting unauthorised execution of programs
    • G06F21/123Restricting unauthorised execution of programs by using dedicated hardware, e.g. dongles, smart cards, cryptographic processors, global positioning systems [GPS] devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604Improving or facilitating administration, e.g. storage management
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0668Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671In-line storage system
    • G06F3/0673Single storage device
    • G06F3/0679Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/451Execution arrangements for user interfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Technology Law (AREA)
  • Multimedia (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The invention discloses a data visual download control system and a method based on a network embedded system, wherein the data visual download control system comprises an event recorder, a human-computer interface and a USB flash disk, the event recorder is provided with a port for connecting with the USB flash disk, and the event recorder is connected with the human-computer interface through an MVB bus; the man-machine interface is provided with a downloading interface; the event recorder is used for sending a recording mark signal and capacity corresponding to the data block to the human-computer interface when the data block is generated; the USB flash disk is used for downloading the data block information to the USB flash disk after receiving the downloading operation instruction; the man-machine interface is used for displaying the generation state, the capacity, the recording time and the downloading control of the data block on the downloading interface after receiving the recording mark signal and the capacity; and the downloading control is used for sending a downloading operation instruction to the event recorder after being clicked. The invention can download the locomotive data at any time, is convenient for acquiring the locomotive data information in time and is convenient for rapidly and effectively troubleshooting.

Description

Data visual downloading control system and method based on network embedded system
Technical Field
The invention belongs to the technical field of railway traffic, and particularly relates to a data visual downloading control system and method based on a network embedded system.
Background
At present, locomotive maintenance personnel acquire locomotive running state or fault data information, and use a notebook computer to connect an event recorder and use TDS software to perform downloading operation. At present, each event data block of an event recorder is about 100M, and when the event recorder is full, the event data block is subjected to first-in first-out operation.
The existing operation mode can download data only by a notebook computer and a TDS software tool, which is not beneficial to timely acquiring data. When the locomotive has a serious problem, if the data cannot be acquired in time, the fault of the locomotive is not easy to be rapidly and effectively checked.
Disclosure of Invention
The invention aims to provide a data visual downloading control system and method based on a network embedded system, aiming at the defects of the prior art, so that locomotive data can be downloaded at any time, locomotive data information can be acquired conveniently in time, and the vehicle can be conveniently and effectively subjected to troubleshooting.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a data visual download control system based on a network embedded system is characterized by comprising an event recorder, a human-computer interface and a U disk, wherein the event recorder is provided with a port for connecting with the U disk, and the event recorder is connected with the human-computer interface through an MVB bus; the man-machine interface is provided with a downloading interface; an authorization file generated by TDS software is installed in the U disk; wherein:
an event recorder: when a data block is generated, the recording mark signal and the capacity corresponding to the data block are sent to the man-machine interface; the USB flash disk is used for downloading the data block information corresponding to the downloading operation instruction to the USB flash disk after the downloading operation instruction is received; the data block is a fault data block or an event data block;
a human-computer interface: the device comprises a download interface, a recording mark signal and a recording mark signal, wherein the download interface is used for displaying a corresponding data block generation state, capacity, recording time and a download control after receiving the recording mark signal and the capacity corresponding to the data block; and the download control is used for sending a download operation instruction to the event recorder after being clicked.
Furthermore, the event recorder is also used for feeding back the downloading state of the data block information to the man-machine interface for display.
Furthermore, the event recorder is also used for feeding back the total download number information of the data block information to the man-machine interface for display.
Furthermore, the total number of the data blocks in the event recorder is n, and after the data blocks are fully stored, the information of the related data blocks is sent to a human-computer interface for display according to a first-in first-out principle.
Furthermore, the system also comprises a vehicle control module connected with the MVB, and communication data between the event recorder and the human-computer interface is transferred through the vehicle control module.
Based on the same inventive concept, the invention also provides a data visual download control method based on the network embedded system, which is characterized by comprising the following steps:
step one, a data block is generated in an event recorder, and the event recorder sends a recording mark signal and capacity corresponding to the data block to a human-computer interface; the data block is a fault data block or an event data block;
step two, the human-computer interface receives the recording mark signal and the capacity corresponding to the data block, and displays the generation state, the capacity, the recording time and the downloading control of the corresponding data block on the downloading interface;
step three, clicking the downloading control, and sending a downloading operation instruction to the event recorder through the man-machine interface;
after the event recorder receives the downloading operation instruction, downloading the data block information corresponding to the downloading operation instruction to the U disk; the U disk is provided with an authorization file generated through TDS software and is connected with the event recorder.
Further, in the fourth step, the event recorder is further configured to feed back the download status of the data block information to the human-computer interface for display.
Further, in the fourth step, the event recorder is further configured to feed back the total download amount information of the data block information to the human-computer interface for display.
Further, the total number of the data blocks in the event recorder is n, and in the first step, after the data blocks in the event recorder are full, the information of the relevant data blocks is sent to the man-machine interface according to a first-in first-out principle.
Furthermore, communication data between the event recorder and the human-computer interface is transferred through the vehicle control module.
Compared with the prior art, the invention has the following beneficial effects:
1. the maintenance personnel do not need to specially carry a notebook computer with TDS software, only need to carry a common U disk (installation authorization file) and carry out related operations in a human-computer interface (human-computer interface/HMI) downloading interface, can select the desired data to download, is convenient for acquiring the locomotive data information in time and is convenient for rapidly and effectively troubleshooting the vehicle.
2. After the event data block is downloaded, the HMI can display the downloading state and the downloaded times of the data block, and the problem that whether the data block is downloaded or not is not known in the prior art is effectively solved.
Drawings
FIG. 1 is a network topology diagram of the system of the present invention.
Fig. 2 is a schematic view of a download interface display of the human machine interface.
Fig. 3 is a data download flow chart.
Wherein, 1 is the event recorder, 2 is human-machine interface, 3 is the USB flash disk, 4 is the MVB bus, 5 is vehicle control module, 6 is other subsystems.
Detailed Description
Fig. 1 shows a network topology diagram of the system of the present invention, which is implemented by a vehicle control module 5 that implements data communication between a human-machine interface 2 (also called human-machine interface or HMI) and an event recorder 1 through an MVB bus 4, so as to forward a downloading operation instruction performed by a maintenance worker on the human-machine interface 2 to the event recorder 1, and send related downloading status information fed back by the event recorder 1 to the human-machine interface 2 for display. The event recorder 1 can also directly read the data of the transmission port of the human-computer interface 2, and the human-computer interface 2 can also directly read the data of the transmission port of the event recorder 1. But are typically relayed through the vehicle control module 5.
The data visual download control system based on the network embedded system comprises an event recorder 1, a human-computer interface 2, a USB flash disk 3 and a vehicle control module 5, wherein the event recorder 1 is provided with a port for connecting with the USB flash disk 3, and the event recorder 1, the human-computer interface 2 and the vehicle control module 5 are all connected with an MVB (multifunction vehicle bus) 4; the man-machine interface 2 is provided with a downloading interface; an authorization file generated by TDS software is installed in the U disk 3; wherein:
event recorder 1: when a data block is generated, the recording mark signal and the capacity corresponding to the data block are sent to the human-computer interface 2; the USB flash disk is used for downloading the data block information corresponding to the downloading operation instruction to the USB flash disk 3 after the downloading operation instruction is received; the data block is a fault data block or an event data block; the event recorder 1 is further configured to feed back the download status of the data block information to the human-computer interface 2 for display. The event recorder 1 is further configured to feed back the total download amount information of the data block information to the human-computer interface 2 for display.
The total number of the data blocks in the event recorder 1 is n, and after the data blocks are fully stored, the information of the related data blocks is sent to the human-computer interface 2 to be displayed according to the first-in first-out principle.
The man-machine interface 2: the device comprises a download interface, a recording mark signal and a recording mark signal, wherein the download interface is used for displaying a corresponding data block generation state, capacity, recording time and a download control after receiving the recording mark signal and the capacity corresponding to the data block; and is used for sending a downloading operation instruction to the event recorder 1 after the downloading control is clicked.
In fig. 1, reference numeral 6 denotes other subsystems.
In the download interface of the man-machine interface 2, it can be checked whether a fault data block (generated by triggering when there is a fault, which is prior art) and an event data block (recorded in real time according to a set recording period, which is prior art) are generated. If a data block is generated, the data block may be selected based on the time the record is displayed. And clicking a 'download' button on the download interface to download the data of the corresponding data block.
The download button has 3 state descriptions, respectively "wait for download", "download being made + percentage", and "download completed + number of times (the number of times is saved by the vehicle control module 5 or the human-machine interface 2)". The download interface display diagram of the man-machine interface 2 is shown in fig. 2. In fig. 2: 1. the fault data block and the event data block can display the size of the data block and the recording time, the event data block is about 100M full, and when the man-machine interface 2 receives the data block recording mark, the corresponding data block is displayed. 2. The download button description is divided into "wait for download", "download being made + percentage", and "download completed + number of times". 3. Data block n is generally defined as 50. 4. And after the event data block is fully stored, performing overlay display according to a first-in first-out principle. 5. And the state information of the downloaded data is fed back by the event recorder 1, and the distribution of the data blocks in the downloading interface of the man-machine interface 2 is consistent with the distribution of the data blocks in the TDS software downloading interface.
The invention also provides a data visual downloading control method based on the network embedded system, which comprises the following steps:
step one, a data block is generated in an event recorder 1, and the event recorder 1 sends a recording mark signal and capacity corresponding to the data block to a human-computer interface 2; the data block is a fault data block or an event data block;
step two, the human-computer interface 2 receives the recording mark signal and the capacity corresponding to the data block, and displays the generation state, the capacity, the recording time and the downloading control of the corresponding data block on a downloading interface;
step three, the downloading control is clicked, and the man-machine interface 2 sends a downloading operation instruction to the event recorder 1;
after receiving the downloading operation instruction, the event recorder 1 downloads the data block information corresponding to the downloading operation instruction to the U disk 3; wherein, the U disk 3 is provided with an authorization file generated by TDS software, and the U disk 3 is connected with the event recorder 1.
In the fourth step, the event recorder 1 is further configured to feed back the download state of the data block information to the human-computer interface 2 for display. The event recorder 1 is further configured to feed back the total download amount information of the data block information to the human-computer interface 2 for display.
In the first step, after the data blocks in the event recorder 1 are full, the information of the relevant data blocks is sent to the human-computer interface 2 according to a first-in first-out principle.
The communication data between the event recorder 1 and the man-machine interface 2 is relayed through the vehicle control module 5.
As shown in fig. 3, the data visual download control method based on the network embedded system has the following working processes:
1. the vehicle control module 5, the human machine interface 2 and the event recorder 1 communicate via the MVB bus 4. If the event recorder 1 starts to record data, the mark signal for starting to record and the capacity of the data block are forwarded to the man-machine interface 2 through the vehicle control module 5, after the man-machine interface 2 receives the mark bit for starting to record the data block, the generation state of the data block is displayed on the downloading interface, the recording time is displayed, and at the moment, the downloading button displays 'waiting for downloading'.
2. And entering the data downloading interface, checking whether the data block is generated or not, and selecting to download by selecting the recording time whether the record is full or not if the data block is generated.
3. Clicking the 'download' button, the man-machine interface 2 sends a download operation instruction and forwards the download operation instruction to the event recorder 1 through the vehicle control module 5. After receiving the instruction, the event recorder 1 starts downloading data and feeds back download status information, such as download percentage. The download button displays "download now + download percentage" while downloading, and when the download is complete, displays "download completed 1 time". The download times are saved by the vehicle control program or HMI program so that when the data chunk download button is clicked again at a later time, after the download is complete, "download completed 2 times" will be displayed, and so on.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A data visual download control system based on a network embedded system is characterized by comprising an event recorder (1), a human-computer interface (2) and a USB (universal serial bus) disk (3), wherein the event recorder (1) is provided with a port for connecting with the USB disk (3), and the event recorder (1) is connected with the human-computer interface (2) through an MVB (multifunction vehicle bus) bus (4); the man-machine interface (2) is provided with a downloading interface; an authorization file generated by TDS software is installed in the U disk (3); wherein:
event recorder (1): when a data block is generated, the recording mark signal and the capacity corresponding to the data block are sent to the man-machine interface (2); the USB flash disk is used for downloading the data block information corresponding to the downloading operation instruction to the USB flash disk (3) after the downloading operation instruction is received; the data block is a fault data block or an event data block;
human-machine interface (2): the device comprises a download interface, a recording mark signal and a recording mark signal, wherein the download interface is used for displaying a corresponding data block generation state, capacity, recording time and a download control after receiving the recording mark signal and the capacity corresponding to the data block; and the download control is used for sending a download operation instruction to the event recorder (1) after being clicked.
2. The network embedded system-based data visual download control system as claimed in claim 1, wherein the event recorder (1) is further configured to feed back the download status of the data block information to the human-machine interface (2) for display.
3. The network embedded system-based data visual download control system as claimed in claim 1, wherein the event recorder (1) is further configured to feed back the total download amount information of the data block information to the human-computer interface (2) for display.
4. The system according to claim 1, wherein the total number of data blocks in the event recorder (1) is n, and when the data blocks are full, the information of the relevant data blocks is sent to the man-machine interface (2) for display according to a first-in first-out principle.
5. The network embedded system-based data visual download control system according to the claims 1 to 4, characterized in that it further comprises a vehicle control module (5) connected to the MVB bus (4), and the communication data between the event recorder (1) and the man-machine interface (2) is transferred through the vehicle control module (5).
6. A data visual download control method based on a network embedded system is characterized by comprising the following steps:
step one, a data block is generated in an event recorder (1), and the event recorder (1) sends a recording mark signal and capacity corresponding to the data block to a human-computer interface (2); the data block is a fault data block or an event data block;
step two, the human-computer interface (2) receives the recording mark signal and the capacity corresponding to the data block, and displays the generation state, the capacity, the recording time and the downloading control of the corresponding data block on the downloading interface;
step three, the downloading control is clicked, and the man-machine interface (2) sends a downloading operation instruction to the event recorder (1);
after receiving the downloading operation instruction, the event recorder (1) downloads the data block information corresponding to the downloading operation instruction into the U disk (3); the U disk (3) is internally provided with an authorization file generated by TDS software, and the U disk (3) is connected with the event recorder (1).
7. The method for controlling the visual downloading of data based on the network embedded system as claimed in claim 6, wherein in the fourth step, the event recorder (1) is further configured to feed the downloading status of the data block information back to the human-machine interface (2) for display.
8. The method for controlling the visual downloading of data based on the network embedded system as claimed in claim 6, wherein in the fourth step, the event recorder (1) is further configured to feed back the total downloading amount information of the data block information to the human-computer interface (2) for display.
9. The method for controlling the visual download of data based on the network embedded system as claimed in claim 6, wherein the total number of data blocks in the event recorder (1) is n, and in the first step, when the data blocks in the event recorder (1) are full, the information of the relevant data blocks is sent to the human-machine interface (2) according to the first-in first-out principle.
10. The method for controlling the visual downloading of data based on the network embedded system as claimed in any one of claims 1 to 9, wherein the communication data between the event recorder (1) and the man-machine interface (2) is relayed through the vehicle control module (5).
CN202011236462.5A 2020-11-09 2020-11-09 Data visual downloading control system and method based on network embedded system Pending CN112416247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011236462.5A CN112416247A (en) 2020-11-09 2020-11-09 Data visual downloading control system and method based on network embedded system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011236462.5A CN112416247A (en) 2020-11-09 2020-11-09 Data visual downloading control system and method based on network embedded system

Publications (1)

Publication Number Publication Date
CN112416247A true CN112416247A (en) 2021-02-26

Family

ID=74780661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011236462.5A Pending CN112416247A (en) 2020-11-09 2020-11-09 Data visual downloading control system and method based on network embedded system

Country Status (1)

Country Link
CN (1) CN112416247A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101110163A (en) * 2006-07-17 2008-01-23 李貌 Vehicle driving recorder with GSM network access and its center monitoring software
CN102633188A (en) * 2012-04-19 2012-08-15 宜兴市三维电气制造有限公司 Digital type lifting weight measurement-control recorder
CN204978709U (en) * 2015-07-09 2016-01-20 唐山轨道客车有限责任公司 Train incident record appearance
CN209087006U (en) * 2018-12-25 2019-07-09 北京东风电器有限公司 A kind of railway locomotive Train-borne recorder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101110163A (en) * 2006-07-17 2008-01-23 李貌 Vehicle driving recorder with GSM network access and its center monitoring software
CN102633188A (en) * 2012-04-19 2012-08-15 宜兴市三维电气制造有限公司 Digital type lifting weight measurement-control recorder
CN204978709U (en) * 2015-07-09 2016-01-20 唐山轨道客车有限责任公司 Train incident record appearance
CN209087006U (en) * 2018-12-25 2019-07-09 北京东风电器有限公司 A kind of railway locomotive Train-borne recorder

Similar Documents

Publication Publication Date Title
CN101590862A (en) A kind of real-time monitoring method of track circuit
CN101936815A (en) Computer type vehicle fault diagnostic system and method
CN102426548A (en) Debugging method, debugger and debugging system for embedded system
CN106951387A (en) Vehicle-mounted data storage device and storage method
CN111324084A (en) Tunnel boring machine remote control method and system based on cloud computing
CN112416247A (en) Data visual downloading control system and method based on network embedded system
CN108921971B (en) Data recording system and method for automatic driving vehicle and data acquisition equipment
CN102088376B (en) Communication monitoring system and method for integrated avionics system
KR101207944B1 (en) Lossless method of sequence of event for plant
CN112977467B (en) Remote fault resetting method for vehicle end unmanned
CN106740800B (en) The CAN bus message maintenance monitoring system and working method of braking system
CN206465888U (en) vehicle-mounted display control device and vehicle
CN202956664U (en) Trouble locating device of rail vehicle control and monitor system
CN201904801U (en) Communication monitoring system of integrated avionics system
CN104767995A (en) Method for recording electronic product test data and recording module
CN205230146U (en) On -vehicle collection system of EMUs driver manipulation information
CN212047377U (en) Rail transit train signal equipment monitoring system
CN101541021B (en) Method for automatically generating capacity-warning reports
CN110254475B (en) Train operation monitoring system
CN109669394B (en) Milling machine construction data storage method
CN110796765A (en) Data storage method and device
CN109035487B (en) Engine historical data reading-back and processing system
CN112819990A (en) Marine navigation data monitoring and playback device
CN212782009U (en) Multi-host Modbus signal distributor
CN215211260U (en) Parallel driving system of excavator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210226