CN110213136A - A kind of communicating control method and system - Google Patents
A kind of communicating control method and system Download PDFInfo
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- CN110213136A CN110213136A CN201910548209.4A CN201910548209A CN110213136A CN 110213136 A CN110213136 A CN 110213136A CN 201910548209 A CN201910548209 A CN 201910548209A CN 110213136 A CN110213136 A CN 110213136A
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- heartbeat signal
- transmission device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- General Health & Medical Sciences (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
This application discloses a kind of communicating control method and systems, this method comprises: building communication network to Communication Control word and status word progress configuration between automation equipment and transmission device；Any bit in any control word in transmission device is preset as heartbeat signal position, any external fault position is set as actively judging failure response mode；Activate transmission device internal custom functional block, and two time relay functional blocks of configuration；According to time relay functional block, heartbeat signal is generated；Heartbeat signal is connected to heartbeat signal position, and automation equipment is transmitted to by communication network；Heartbeat signal is fed back to the corresponding control word in transmission device by automation equipment again；Transmission device judges whether heartbeat signal is abnormal；If abnormal, actively judge that failure response mode carries out preset failure processing, if normal, then transmission device operates normally.The application can have found the failure in communication apparatus in time, improve the security reliability of entire production system.
Description
Technical field
This application involves automatic control technology field more particularly to a kind of communicating control method and systems.
Background technique
Automatic control technology is widely used in industrial production, gradually realizes industrial automation.In industrial automation, from
The communication connection between transmission device, start and stop, revolving speed and the rotation side of automation equipment Communication Control transmission device are set in dynamic makeup
To etc..Currently, common communication modes have DP (full name PROFIBUS-DP) communication, MPI (Multi Point Interface,
Multipoint interface) communication and ethernet communication.
In actual production, program curing is equipped with inside transmission device, for detecting typical communication failure, such as grid line
Road broken string or short circuit, network terminal resistance exception and communication partner loss etc., and after detecting communication failure, for controlling
Transmission device processed enters troubleshooting link.By taking DP is communicated as an example, multistage DP communication apparatus communication connection, and DP at different levels communication is set
Between standby in Fixed Time Interval, mutual sending cycle, preset format communication packet.Transmission device is logical in detection DP
When interrogating failure, communication packet " having " either "None" mainly is checked to realize by program curing, is reported when discovery " having " communicates
Wen Shi, then DP communication is normal, when finding "None" communication packet, then illustrates that DP communication abnormality, program curing control transmission device
Into troubleshooting link.
Hardware, the software of DP communication apparatus uses at different levels, and the platform of exploitation bottom are possible to different, therefore it is compatible
There are certain uncertainties.Although DP communication apparatus at different levels can be realized conventional DP communication function, some unconventional
Operating condition processing can have differences either there are some loopholes.Such as when communication packet preset format and time interval meet item
Part, and when the timeliness of communication packet is unsatisfactory for, that is to say, that upper level DP communication apparatus or automation equipment are in endless loop
When state, transmission device internal curing program is can not to detect such DP communication failure, can not further make any response,
Cause serious consequence.
Summary of the invention
This application provides a kind of communicating control method and systems, to solve not detecting industry in time in the prior art
In automation the technical issues of communication failure.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution:
In a first aspect, the embodiment of the present application discloses a kind of communicating control method, which comprises
To the Communication Control word and status word progress configuration between automation equipment and transmission device, communication network is built；
Any bit in any control word in the transmission device is preset as heartbeat signal position, any external fault position
It is set as actively judging failure response mode；
Activate the transmission device internal custom functional block, and two time relay functional blocks of configuration；
According to the time relay functional block, heartbeat signal is generated；
The heartbeat signal is connected to the heartbeat signal position, and the automation is transmitted to by the communication network
Device；
The heartbeat signal received is fed back to the transmission by the communication network and filled by the automation equipment
Corresponding control word in setting；
The transmission device judges whether the heartbeat signal is abnormal；
Described actively to judge that failure response mode carries out preset failure processing if abnormal, if normal, then the transmission fills
Set normal operation.
Optionally, described actively to judge that failure response mode is preset if abnormal in above-mentioned communicating control method
Troubleshooting, comprising:
The fault type for actively judging communication network described in failure response mode detection；
According to the fault type of the communication network, the transmission device continues to run or autostop.
Optionally, described according to the time relay functional block in above-mentioned communicating control method, generate heartbeat letter
Number, comprising:
Two time relay functional blocks generate the heartbeat signal, wherein the heartbeat signal is fixed pulse width
For 200ms, duty ratio is the pulse train of 1:1.
Optionally, in above-mentioned communicating control method, the transmission device judges whether the heartbeat signal is abnormal, packet
It includes:
Judge whether the high level lasting time of heartbeat signal or the low level duration are greater than in the control word
200ms。
Optionally, in above-mentioned communicating control method, which comprises
If the high level lasting time or the low level duration are greater than 200ms, the communication network is abnormal, institute
It states and actively judges that failure response mode carries out preset failure processing；
If the high level lasting time or the low level duration are less than or equal to 200ms, the communication network is just
Often, the transmission device operates normally.
Second aspect, the embodiment of the present application disclose a kind of communication control system, the system comprises:
Communication network builds module, between automation equipment and transmission device Communication Control word and status word into
Row configuration, builds communication network；
Preprocessing module, for any bit in any control word in the transmission device to be preset as heartbeat signal
Position, any external fault position is set as actively judging failure response mode
Functional module is activated, for activating the transmission device internal custom functional block, and two time relays of configuration
Device functional block；
Heartbeat signal generation module, for generating heartbeat signal according to the time relay functional block；
Signal active transmission module, for the heartbeat signal to be connected to the heartbeat signal position, and by described logical
Network transmission is interrogated to the automation equipment；
Signal feedback module passes through the heartbeat signal that the communication network will receive for the automation equipment
Feed back to the corresponding control word in the transmission device；
Judgment module judges whether the heartbeat signal is abnormal for the transmission device, if abnormal, the active is sentenced
Disconnected failure response mode carries out preset failure processing, and if normal, then the transmission device operates normally.
Optionally, in above-mentioned communication control system, the judgment module includes:
Fault detection unit, for the type for actively judging network communication failure described in failure response mode detection；
Processing unit, for the type according to the communication failure, the transmission device continues to run or autostop.
Optionally, in above-mentioned communication control system, heartbeat letter of the heartbeat signal generation module for generation
It number be fixed pulse width is 200ms, duty ratio is the pulse train of 1:1.
Compared with prior art, the application has the beneficial effect that
This application provides a kind of communicating control method and system, first in automation equipment and transmission device in the application
Between build communication network, i.e., between automation equipment and transmission device Communication Control word and status word carry out configuration, so
Any bit in any control word in the transmission device is preset as heartbeat signal position afterwards, for connecting heartbeat signal, and
And be set as external fault any in transmission device position actively to judge failure response mode, failure is carried out for controlling transmission device
Processing.Then, by activating the transmission device internal custom functional block, and two time relay functional blocks of configuration,
Under the action of two time relay functional blocks, heartbeat signal is generated, heartbeat signal is connected to the heartbeat reserved in status word
Signal position, and automation equipment is transmitted to by communication network, automation equipment passes through the institute that the communication network will receive again
State the corresponding control word that heartbeat signal is fed back in transmission device.Finally, the transmission device judges the heartbeat signal
Whether abnormal, if communication network breaks down, heartbeat signal is abnormal, described actively to judge that failure response mode carries out default event
Barrier processing, if communication network is normal, heartbeat signal is normal, and the transmission device operates normally.Communication Control in the application
In, transmission device can actively generate heartbeat signal, and heartbeat signal is actively sent to automation equipment, then by filling automatically
It setting the heartbeat signal fed back and judges whether communication network is normal, the application can have found the failure in communication apparatus in time,
Improve the security reliability of entire production system.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of flow diagram of communicating control method provided in an embodiment of the present invention；
Fig. 2 is the heartbeat signal under normal condition provided in an embodiment of the present invention；
Fig. 3 is the heartbeat signal under abnormality provided in an embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the common skill in this field
The application protection all should belong in art personnel every other embodiment obtained without making creative work
Range.
It is a kind of flow diagram of communicating control method provided in an embodiment of the present invention referring to Fig. 1.In conjunction with Fig. 1, this Shen
Please in communicating control method the following steps are included:
Step S110: it to the Communication Control word and status word progress configuration between automation equipment and transmission device, builds
Communication network；
Step S120: being preset as heartbeat signal position for any bit in any control word in the transmission device, any
External fault position is set as actively judging failure response mode；
In the application, the communication network between automation equipment and transmission device is erected by communication apparatus at different levels first
Network realizes communication function between the two, i.e., according to the Communication Control word between conventional configuration automation equipment and transmission device
And status word.Wherein, automatic device can be the L1 grades of automated systems such as PLC controller, and transmission device can be frequency converter etc.
L0 grades of systems.
In general, transmission device some default settings in communication setting, such as control word 1, control word 2, status word 1, state
The signals such as starting/stopping being generally arranged in word 2 etc. in control word 1, and being usually in control word 2 can be customized, can be certainly
By combining, flexible allocation, each in status word represents an information, is used to back-to-back running, stopping, trouble light state, this Shen
Please in a certain position can be selected in status word 2, and heartbeat signal position is preset as, for connecting heartbeat signal.In addition, transmission dress
Set be typically provided with 3 can customized external fault position, in the application can optional one be set as actively judging failure response mould
Formula, for actively judging that communication failure, control transmission device carry out troubleshooting.
Step S130: the transmission device internal custom functional block, and two time relay functional blocks of configuration are activated；
Step S140: according to the time relay functional block, heartbeat signal is generated；
In the application, first activate transmission device inside with the functional blocks such as door or door, rest-set flip-flop, then especially need
Want two time relay functional blocks of configuration.It referring to fig. 2, is the heartbeat signal under normal condition provided in an embodiment of the present invention.
As shown in Figure 2, under the action of two time relay functional blocks, heartbeat signal is generated, which is that fixed pulse width is
200ms, duty ratio are the pulse train of 1:1, i.e., every 200ms is a cycle, high level in each period in pulse train
" 1 ", low level " 0 " respectively account for 100ms.
Step S150: the heartbeat signal is connected to the heartbeat signal position, and is transmitted to by the communication network
The automation equipment；
Step S160: the heartbeat signal received is fed back to institute by the communication network by the automation equipment
State the corresponding control word in transmission device；
Heartbeat signal position in status word is connected to by the heartbeat signal that time relay functional block generates, and passes through communication
Network active transmission to automation equipment, automation equipment is fed back to after receiving the heartbeat signal, then through communication network
Corresponding control word in transmission device.As shown in Fig. 2, heartbeat signal is the bit (15) for being connected to status word 2, i.e. status word
The 15th, that heartbeat signal fed back is transferred to the bit (15) of control word 2.
Step S170: the transmission device judges whether the heartbeat signal is abnormal；
Judge whether the high level lasting time of heartbeat signal or the low level duration are greater than in the control word
200ms is the heartbeat signal under abnormality provided in an embodiment of the present invention referring to Fig. 3.If the high level lasting time or
Person's the low level duration is greater than 200ms, then the communication network is abnormal, i.e. normal " 1 " failure of heartbeat signal shown in Fig. 3,
Or normal " 0 " failure of heartbeat signal, it is described actively to judge that failure response mode carries out preset failure processing；If the high level is held
Continuous time or the low level duration are less than or equal to 200ms, then the communication network is normal, and the transmission device is normally transported
Row.
It is described actively to judge that failure response mode is able to detect the network communication after judging heartbeat signal exception
Fault type, according to the fault type of the communication network, the transmission device continues to run or autostop.If detecting
The failure of network communication will not influence normal production, then the transmission device can ignore the failure, continue to produce, no
Then, transmission device autostop is overhauled.
Based on the same technical idea, the embodiment of the invention also provides a kind of communication control systems.The system comprises:
Communication network builds module, between automation equipment and transmission device Communication Control word and status word into
Row configuration, builds communication network；
Preprocessing module, for any bit in any control word in the transmission device to be preset as heartbeat signal
Position, any external fault position is set as actively judging failure response mode
Functional module is activated, for activating the transmission device internal custom functional block, and two time relays of configuration
Device functional block；
Heartbeat signal generation module, for generating heartbeat signal according to the time relay functional block；
Signal active transmission module, for the heartbeat signal to be connected to the heartbeat signal position, and by described logical
Network transmission is interrogated to the automation equipment；
Signal feedback module passes through the heartbeat signal that the communication network will receive for the automation equipment
Feed back to the corresponding control word in the transmission device；
Judgment module judges whether the heartbeat signal is abnormal for the transmission device, if abnormal, the active is sentenced
Disconnected failure response mode carries out preset failure processing, and if normal, then the transmission device operates normally.
Further, the judgment module includes:
Fault detection unit, for the type for actively judging network communication failure described in failure response mode detection；
Processing unit, for the type according to the communication failure, the transmission device continues to run or autostop.
Further, it is 200ms that the heartbeat signal generation module, which is fixed pulse width for the heartbeat signal of generation, is accounted for
Sky is than the pulse train for 1:1.
In Communication Control in the application, transmission device can actively generate heartbeat signal, and actively send out heartbeat signal
It send to automation equipment, then judges whether communication network is normal by the heartbeat signal that automatic device is fed back, that is to say, that
Judge whether communication network is normal by heartbeat signal timing.It is equivalent to be added in transmission device in the application and actively judge
Mechanism can find the failure in communication apparatus in time, and trigger failure protection function in communication network exception, improve whole
The security reliability of a production system.Also, the communicating control method and system cost in the application are low and simple and reliable, dimension
Shield amount is small.
Since embodiment of above is that reference combination is illustrated on other modes, have between different embodiments
There is identical part, identical, similar part may refer to each other between each embodiment in this specification.Herein no longer in detail
It illustrates.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the circuit structure, article or the equipment that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this circuit structure, article or equipment
Intrinsic element.In the absence of more restrictions, the element for thering is sentence "including a ..." to limit, it is not excluded that
There is also other identical elements in circuit structure, article or equipment including the element.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the disclosure invented here
His embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
The content asked is pointed out.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (8)
1. a kind of communicating control method, which is characterized in that the described method includes:
To the Communication Control word and status word progress configuration between automation equipment and transmission device, communication network is built；
Any bit in any control word in the transmission device is preset as heartbeat signal position, any external fault position is set as
Actively judge failure response mode；
Activate the transmission device internal custom functional block, and two time relay functional blocks of configuration；
According to the time relay functional block, heartbeat signal is generated；
The heartbeat signal is connected to the heartbeat signal position, and the automatic makeup is transmitted to by the communication network
It sets；
The automation equipment is fed back to the heartbeat signal received in the transmission device by the communication network
Corresponding control word；
The transmission device judges whether the heartbeat signal is abnormal；
Described actively judge the progress preset failure processing of failure response mode if abnormal, if normal, then the transmission device is being just
Often operation.
2. communicating control method according to claim 1, which is characterized in that described actively to judge that failure is rung if abnormal
Mode is answered to carry out preset failure processing, comprising:
The fault type for actively judging communication network described in failure response mode detection；
According to the fault type of the communication network, the transmission device continues to run or autostop.
3. communicating control method according to claim 1, which is characterized in that described according to the time relay function
Block generates heartbeat signal, comprising:
Two time relay functional blocks generate the heartbeat signal, wherein the heartbeat signal is that fixed pulse width is
200ms, duty ratio are the pulse train of 1:1.
4. communicating control method according to claim 3, which is characterized in that the transmission device judges the heartbeat signal
It is whether abnormal, comprising:
Judge whether the high level lasting time of heartbeat signal or the low level duration are greater than 200ms in the control word.
5. communicating control method according to claim 4, which is characterized in that the described method includes:
If the high level lasting time or the low level duration are greater than 200ms, the communication network is abnormal, the master
It is dynamic to judge that failure response mode carries out preset failure processing；
If the high level lasting time or the low level duration are less than or equal to 200ms, the communication network is normal, institute
State transmission device normal operation.
6. a kind of communication control system, which is characterized in that the system comprises:
Communication network builds module, between automation equipment and transmission device Communication Control word and status word carry out group
State builds communication network；
Preprocessing module is appointed for any bit in any control word in the transmission device to be preset as heartbeat signal position
One external fault position is set as actively judging failure response mode
Functional module is activated, for activating the transmission device internal custom functional block, and two time relay function of configuration
It can block；
Heartbeat signal generation module, for generating heartbeat signal according to the time relay functional block；
Signal active transmission module for the heartbeat signal to be connected to the heartbeat signal position, and passes through the communication network
Network is transmitted to the automation equipment；
Signal feedback module is fed back the heartbeat signal received by the communication network for the automation equipment
To the corresponding control word in the transmission device；
Judgment module judges whether the heartbeat signal is abnormal for the transmission device, if abnormal, the active judgement event
Hinder response modes and carry out preset failure processing, if normal, then the transmission device operates normally.
7. communication control system according to claim 6, which is characterized in that the judgment module includes:
Fault detection unit, for the type for actively judging network communication failure described in failure response mode detection；
Processing unit, for the type according to the communication failure, the transmission device continues to run or autostop.
8. communication control system according to claim 6, which is characterized in that the heartbeat signal generation module is for generating
The heartbeat signal be fixed pulse width be 200ms, duty ratio is the pulse train of 1:1.
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| CN201910548209.4A CN110213136B (en) | 2019-06-24 | 2019-06-24 | Communication control method and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866057A (en) * | 2021-01-11 | 2021-05-28 | 北京科技大学设计研究院有限公司 | Method for determining a communication disconnection between a transmission and an automation controller in a Profinet network |
| CN114167845A (en) * | 2021-12-23 | 2022-03-11 | 广东嘉腾机器人自动化有限公司 | Communication offline diagnosis method and system for PLC and equipment |
| CN116112529A (en) * | 2023-04-03 | 2023-05-12 | 三一汽车起重机械有限公司 | Multi-mode signal transmission method and device and engineering machinery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| WO2016037511A1 (en) * | 2014-09-10 | 2016-03-17 | 广州金升阳科技有限公司 | Power supply protection and control method |
| CN108038019A (en) * | 2017-12-25 | 2018-05-15 | 曙光信息产业(北京)有限公司 | A kind of automatically restoring fault method and system of baseboard management controller |
| CN109887125A (en) * | 2019-02-02 | 2019-06-14 | 北京主线科技有限公司 | Fault detection method and device |
-
2019
- 2019-06-24 CN CN201910548209.4A patent/CN110213136B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| WO2016037511A1 (en) * | 2014-09-10 | 2016-03-17 | 广州金升阳科技有限公司 | Power supply protection and control method |
| CN108038019A (en) * | 2017-12-25 | 2018-05-15 | 曙光信息产业(北京)有限公司 | A kind of automatically restoring fault method and system of baseboard management controller |
| CN109887125A (en) * | 2019-02-02 | 2019-06-14 | 北京主线科技有限公司 | Fault detection method and device |
Non-Patent Citations (6)
| Title |
|---|
| 布朋生: "基于CAN通信的变频电动机控制设计与实现", 《煤矿机电》 * |
| 文杰等: "一种提高工业以太网通信可靠性的方法", 《南华大学学报(自然科学版)》 * |
| 曾丽丽: "溪浙特高压直流工程PROFIBUS DP通信告警分析", 《电力工程技术》 * |
| 李杰等: "泵闸PLC控制系统的设计研究", 《上海水务》 * |
| 蔡森: "现场总线网络故障预判和诊断技术在板坯连铸机中的应用", 《莱钢科技》 * |
| 黄静等: "基于心跳机制的农业物联网数据采集系统设计", 《传感器与微系统》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866057A (en) * | 2021-01-11 | 2021-05-28 | 北京科技大学设计研究院有限公司 | Method for determining a communication disconnection between a transmission and an automation controller in a Profinet network |
| CN112866057B (en) * | 2021-01-11 | 2023-03-10 | 北京科技大学设计研究院有限公司 | Method for determining a communication disconnection between a transmission and an automation controller in a Profinet network |
| CN114167845A (en) * | 2021-12-23 | 2022-03-11 | 广东嘉腾机器人自动化有限公司 | Communication offline diagnosis method and system for PLC and equipment |
| CN114167845B (en) * | 2021-12-23 | 2023-12-05 | 广东嘉腾机器人自动化有限公司 | Communication offline diagnosis method and system for PLC and equipment |
| CN116112529A (en) * | 2023-04-03 | 2023-05-12 | 三一汽车起重机械有限公司 | Multi-mode signal transmission method and device and engineering machinery |
| CN116112529B (en) * | 2023-04-03 | 2023-06-09 | 三一汽车起重机械有限公司 | Multi-mode signal transmission method and device and engineering machinery |
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| Publication number | Publication date |
|---|---|
| CN110213136B (en) | 2022-03-04 |
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