CN108337135A - A kind of communication control system, method and apparatus - Google Patents
A kind of communication control system, method and apparatus Download PDFInfo
- Publication number
- CN108337135A CN108337135A CN201810317459.2A CN201810317459A CN108337135A CN 108337135 A CN108337135 A CN 108337135A CN 201810317459 A CN201810317459 A CN 201810317459A CN 108337135 A CN108337135 A CN 108337135A
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- terminal
- main control
- control end
- communication
- communication quality
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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
- H04L43/16—Threshold monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- 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
-
- 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
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
-
- 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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
-
- 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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of communication control system, method and apparatus, are related to local area network communication field, it is intended to solve the problems, such as that existing cable LAN signal transmission system is easy communication abnormality.Its key points of the technical solution are that, main control end carries out data interaction with multiple terminals, when terminal n and main control end lose the communication quality between liaison or terminal n and main control end less than preset communication quality threshold value, terminal m is configurable for the data relay station communicated between bridge terminal n and main control end, has the advantages that can effectively ensure that terminal and main controller normal communication.
Description
Technical field
The present invention relates to local area network communication fields, more specifically, it relates to a kind of communication control system, method and dress
It sets.
Background technology
Cable LAN is that the equipment of a kind of different physical locations being distributed within the scope of certain distance connects together,
The network system with resource-sharing can be mutually communicated under the support of network software.
The Chinese patent of existing Publication No. CN103711719A provides a kind of Induced fan control system comprising if
Dry subregion Induced fan control module, subregion Induced fan control module include an Induced fan main controller, multiple inductions
Wind turbine iversion controller and the Induced fan being connect with Induced fan iversion controller, Induced fan main controller and multiple Induced fan iversion controllers
Communication modes be cable LAN signal transmission connection.
But in above-mentioned point-to-points cable LAN signal transmission system, data exchange path is long will face as
Thus signal decaying, signal interference, path short circuit/open circuit equivalent risk cause in the iversion controller of path distal end and leading to for main controller
The abnormal even lost contact of news, this problem has to be solved.
Invention content
In view of the deficienciess of the prior art, the first invention of the present invention is designed to provide a kind of communication control system,
It has the advantage that can effectively ensure that terminal and main control end normal communication.
To achieve the above object, the present invention provides following technical solutions：
A kind of communication control system, including main control end and be configured as with main control end carry out data interaction multiple terminals, it is described
Terminal is connected with main control end successively, when terminal n and main control end lose the communication quality between liaison or terminal n and main control end
When less than preset communication quality threshold value, terminal m is configurable for the data relay communicated between bridge terminal n and main control end
It stands, the terminal n and terminal m are any two in multiple terminals.
By using above-mentioned technical proposal, when terminal loses contact with main control end or communication quality is poor, main control end meeting
Automatically it is that the terminal configures a data terminal, to ensure that it can continue to carry out data interaction with main control end, having can have
Effect ensures the advantage of terminal and main control end normal communication.
Further, the terminal is provided with the transit module being connect with main control end；The main control end includes：Monitoring is single
Member, for detecting the communication quality between main control end and each terminal；Trigger element, for when the terminal n and main control end it
Between communication quality when being less than preset communication quality threshold value, control main control end is sent to the terminal m starts transit module
Order.
By using above-mentioned technical proposal, it is convenient for main control end configuration data terminal.When monitoring unit detect terminal n with
When main control end loses contact or communication quality is poor, trigger element can send the order for starting its transit module to terminal m, to
Terminal n is enable to carry out data interaction by terminal m and main control end.
Further, the monitoring unit sends routine data for controlling main control end to terminal, receives routine data
Terminal keep to main control end send feedback information start trigger element if main control end does not receive corresponding feedback information.
By using above-mentioned technical proposal, communication quality that can be between stability monitoring main control end and terminal, to ensure
Normal communication between terminal and main control end.
Further, when the trigger element, which controls main control end, sends the order for starting transit module to terminal m, simultaneously
Control the address information that main control end sends terminal n to terminal m.
By using above-mentioned technical proposal, it is convenient for the Rapid matching of terminal m and terminal n.
Further, the main control end further includes stage unit, and the stage unit is configurable for multiple terminals
Carry out serial number.
By using above-mentioned technical proposal, after multiple terminals are carried out serial number, it is convenient for monitoring of the main control end to terminal
And configuration data terminal.
Further, the transit module includes judging unit, and the judging unit is used to detect the load of transit module
Rate and to main control end send load factor information.
By using above-mentioned technical proposal, main control end will not configure the higher terminal of load factor to data relay station, have
Effect improves the stability of communication transfer, and ensure that the service life of transit module.
The present invention the second goal of the invention be to provide a kind of communication control method using above-mentioned communication control system,
With the advantage that can effectively ensure that terminal and main control end normal communication.
A kind of communication control method using above-mentioned communication control system, the communication between the terminal n and main control end
When quality is less than preset communication quality threshold value, minimum with the number difference of the terminal n by meeting, communication quality is more than default
Communication quality threshold value terminal m as data relay station.
By using above-mentioned technical proposal, the number difference of data relay station terminal m and terminal n is minimum, then between each other
Distance it is nearest, by terminal m as data relay station, when bus is variable bit rate bus, effectively increase terminal n and master
The rate of data transmission effectively increases data between terminal n and main control end when bus is fixed rate bus between control end
The success rate of transmission.
It further, will when the communication quality between the terminal n and main control end is less than preset communication quality threshold value
Meet the number difference minimum with the terminal n, communication quality is more than preset communication quality threshold value, and load factor is less than preset
The terminal m of load factor threshold value is as data relay station.
By using above-mentioned technical proposal, main control end can be preferably that terminal n is matched when for terminal n configuration data terminal
It sets distance recently and load factor is less than the terminal of load factor threshold value as data relay station, effectively increase the stabilization of transfer communication
Property.
Further, be arranged it is multiple less than default communication quality threshold value and continuous threshold zone, and by the threshold zone into
Row serial number, including：Terminal in any number threshold zone is sought according to terminal number sequence in upper number threshold zone
Look for relay of the terminal of terminal number difference minimum as data transmission；By the terminal in the most preceding threshold zone of number sorting
The terminal for finding terminal number difference minimum in the terminal more than preset communication quality threshold value according to terminal number sequence is made
For data relay station.
By using above-mentioned technical proposal, when the communication quality between each terminal and main control end presses the number order of terminal
When decline, main control end can be that the terminal in any threshold area finds relay in upper number threshold zone.In volume
Terminal in number most preceding threshold zone of sequence, main control end can be its configuration data transfer in the terminal more than communication quality threshold value
It stands, to which the terminal that ensure that in each threshold zone can carry out normal data interaction with main control end.It is multiple to communicate matter less than default
Threshold value and continuous threshold zone are measured, multilevel relay communication is formd, effectively increases the quality and stability of relay communication.
Further, the terminal in any number threshold zone is sought according to terminal number sequence in upper number threshold zone
Look for terminal number difference minimum, load factor is less than relay of the terminal of preset load factor threshold value as data transmission；It will
Terminal in the most preceding threshold zone of number sorting is according to terminal number sequence in the terminal more than preset communication quality threshold value
Terminal number difference minimum is found, load factor is less than the terminal of preset load factor threshold value as data relay station.
By using above-mentioned technical proposal, load factor is considered in multilevel relay communication, relaying is further improved
The stability of communication.
Further, when the packet loss of data transmission between the terminal n and main control end is more than preset packet loss threshold value
Or the bit error rate determines communication quality between the terminal n and main control end less than preset when being more than preset bit error rate threshold
Communication quality threshold value.
By using above-mentioned technical proposal, packet loss is：In a period of time, terminal do not reply number and total communication number it
Between ratio；The bit error rate is the ratio between terminal replies data check errors number and total communication number in a period of time.It loses
Packet rate and the bit error rate affect the accuracy of data interaction, i.e. communication quality.By the packet loss and mistake that judge data transmission
Whether code check meets the requirements, you can the convenient communication quality judged between terminal and main control end.
The present invention another goal of the invention be to provide a kind of communication control unit using above-mentioned communication control method,
With the advantage that can effectively ensure that terminal and main control end normal communication.
A kind of communication control unit using above-mentioned communication control method, including the communication control system further include using
In the display module for showing the communication quality data between the terminal and main control end, the display module and the communication control
System communication connects.
By using above-mentioned technical proposal, the personnel of being conveniently operated recognize the communication matter between each terminal and main control end
Amount.
Further, further include fault detection module, the fault detection module includes：Analytic unit, is configured to and institute
Communication control system communication connection is stated, for analyzing communication quality data and generating fault type information, the fault type letter
Breath is configured as being shown by display module.
By using above-mentioned technical proposal, display module can show the communication failure type between terminal and main control end
Go out, personnel easy to operation understand fault condition, and make corresponding processing to fault condition.
In conclusion the invention has the advantages that：
1, by the way that transit module and trigger module is arranged, have the effect of can effectively ensure that terminal and main control end normal communication；
2, by the way that stage unit and judging unit is arranged, it is end of the communication quality less than communication quality threshold value to have convenient for main control end
Hold the effect of configuration data terminal；
3, by the way that multiple continuous threshold zones are arranged, the stability of relay communication has been effectively ensured；
4, by the way that display module is arranged, have the function of understanding communication condition between each terminal and main control end convenient for user.
Description of the drawings
Fig. 1 is the overall structure diagram of communication control system in embodiment 1；
Fig. 2 is the structural schematic diagram of main control end in embodiment 1；
Fig. 3 is the structural schematic diagram of communication control system in embodiment 1, the connection for embodying terminal m and terminal n and main control end
Relationship；
Fig. 4 is the relation schematic diagram of terminal and communication quality in embodiment 2, for embodying the logical of terminal m1, terminal n and terminal m2
Interrogate quality；
Fig. 5 is the relation schematic diagram of terminal and communication quality in embodiment 3, for embodying threshold zone a, threshold zone b and threshold zone c
Relationship；
Fig. 6 is the overall structure diagram of communication control unit in embodiment 4.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Embodiment 1：
A kind of communication control system, referring to Fig.1 comprising main control end and multiple terminals, main control end will be each using a bus
Terminal is together in series, to realize the data interaction of terminal and main control end.
Referring to Fig.1, terminal includes the transit module that can be started by main control end, after transit module is started by main control end, in this
The corresponding terminal of revolving die block is by the data relay station as main control end and another terminal called.Transit module includes judging unit,
Judging unit is used to detect the load factor of transit module, and sends corresponding load factor information to main control end.
Referring to Figures 1 and 2, main control end includes monitoring unit, trigger element and stage unit, and stage unit is used for terminal
It is numbered successively, trigger element is used to control main control end and sends the order for starting transit module to terminal, and monitoring unit is used for
Detect the communication quality between main control end and each terminal.When system works, monitoring unit can control main control end and be sent to terminal
Routine data, the terminal for receiving routine data keeps sending feedback information to main control end, if main control end does not receive some
Or the corresponding feedback information of multiple terminals, then start trigger element, the terminal not send feedback information to main control end configures number
According to terminal.
With reference to Fig. 3, terminal n and terminal m are any two in multiple terminals, when monitoring unit detects terminal n and master
When control end loses the communication quality between liaison or terminal n and main control end less than preset communication quality threshold value, triggering
Unit controls main control end and sends the order for starting its transit module to terminal m.At this point, terminal m is configurable for bridge terminal n
The data relay station communicated between main control end.When main control end sends the order for starting transit module to terminal m, while also can
The address information of terminal n is sent to terminal m, so that terminal m can form relay communication with terminal n Rapid matching.
With reference to Fig. 3, the communication quality between terminal n and main control end is less than preset communication quality threshold value, i.e. terminal n and master
The packet loss of data transmission is more than preset packet loss threshold value between control end or the bit error rate is more than preset bit error rate threshold.Its
In, packet loss is：After main control end sends communication data to terminal, in a period of time, terminal does not reply number and total communication number
Between ratio；The bit error rate is：After main control end sends communication data to terminal, in a period of time, terminal replies data check is wrong
The accidentally ratio between number and total communication number.
Operation principle is as follows：
When system works, main control end carries out data interaction with multiple terminals, and terminal n and terminal m are arbitrary two in multiple terminals
It is a.
When terminal n and main control end lose the communication quality between liaison or terminal n and main control end less than preset
When communication quality threshold value, data relay station that main control end configurating terminal m is communicated between bridge terminal n and main control end.
Embodiment 2：
A kind of communication control method applied to communication control system in embodiment 1, with reference to Fig. 4, when between terminal n and main control end
Communication quality when being less than preset communication quality threshold value, will meet it is minimum with the number difference of terminal n, communication quality be more than or
Equal to preset communication quality threshold value, load factor is less than the terminal of preset load factor threshold value as data relay station, wherein n
For the number of terminal, and n is not equal to the number of the terminal as data relay station.
With reference to Fig. 4, when the communication quality between terminal n and main control end is less than preset communication quality threshold value, meet with
The number difference of terminal n is minimum, and the terminal that communication quality is greater than or equal to preset communication quality threshold value has terminal m1 and terminal
m2.In the present embodiment, the load factor of terminal m1 is more than preset load factor threshold value, and the load factor of terminal m2 is less than preset bear
Load rate threshold value, therefore the data relay station that configurating terminal m2 is communicated between terminal n and main control end.When bearing for terminal m1 and terminal m2
When load rate is respectively less than preset load factor threshold value, then appoint take one as the data relay station communicated between terminal n and main control end.
Embodiment 3：
A kind of communication control method applied to communication control system in embodiment 1, with reference to Fig. 5, setting is multiple logical less than default
Quality threshold and continuous threshold zone are interrogated, and threshold zone is subjected to serial number.In the present embodiment, it is less than default communication quality
There are threshold zone a, threshold zone b and threshold zone c in the threshold zone of threshold value, and wherein a, b, c is the number of threshold zone.It will be in the c of threshold zone
Terminal find that terminal number difference is minimum, and load factor is less than preset negative in the b of threshold zone according to the number order of terminal
The terminal of load rate threshold value, the relay as data transmission.By the terminal in the b of threshold zone, according to the number order of terminal,
Terminal number difference minimum is found in a of threshold zone, load factor is less than the terminal of preset load factor threshold value, as data transmission
Relay.By the terminal in a of threshold zone, according to the number order of terminal, more than or equal to preset communication quality threshold value
Terminal in find that terminal number difference is minimum, load factor is less than the terminal of preset load factor threshold value, as data relay station.
With reference to Fig. 5, the communication quality of terminal a1 is equal to communication quality threshold value, and terminal a2 is located in a of threshold zone, a3, terminal
In in the b of threshold zone.In the present embodiment, terminal a3 is the relay of terminal in the c of threshold zone, and terminal a2 is whole in the b of threshold zone
The relay at end, terminal a1 are the data relay station of terminal in a of threshold zone, wherein a1, a2, a3 are the number of terminal, and
Terminal a1, terminal a2, terminal a3 load factor be respectively less than preset load factor threshold value.
Embodiment 4：
A kind of communication control unit using above-mentioned communication control method, with reference to Fig. 6, including above-mentioned communication control system, failure
Detection module and display module, display module are communicated to connect with communication control system, between display terminal and main control end
Communication quality data have the function of convenient for users to understanding communication quality situation between each terminal and main control end.
With reference to Fig. 6, fault detection module includes analytic unit, and analytic unit is communicated to connect with communication control system, is used for
Analysis communication quality data simultaneously generate fault type information, and the fault type information of generation is shown by display module, convenient for behaviour
Make personnel and understand fault condition, and corresponding processing is made to fault condition.
Claims (10)
1. a kind of communication control system, including main control end and it is configured as carrying out multiple terminals of data interaction, institute with main control end
Terminal is stated to connect with main control end successively, it is characterised in that：
It is less than preset communication matter when terminal n and main control end lose the communication quality between liaison or terminal n and main control end
When measuring threshold value, terminal m is configurable for the data relay station communicated between bridge terminal n and main control end, the terminal n and end
It is any two in multiple terminals to hold m.
2. communication control system according to claim 1, it is characterised in that：The terminal, which is provided with, to be connect with main control end
Transit module；
The main control end includes：
Monitoring unit, for detecting the communication quality between main control end and each terminal；
Trigger element, for when the communication quality between the terminal n and main control end is less than preset communication quality threshold value, controlling
Main control end processed sends the order for starting transit module to the terminal m.
3. communication control system according to claim 2, it is characterised in that：The monitoring unit for control main control end to
Terminal sends routine data, and the terminal for receiving routine data keeps sending feedback information to main control end, if main control end does not receive
To corresponding feedback information, then start trigger element.
4. communication control system according to claim 3, it is characterised in that：When the trigger element controls main control end to end
When m being held to send the order for starting transit module, while controlling the address information that main control end sends terminal n to terminal m.
5. communication control system according to claim 4, it is characterised in that：The main control end further includes stage unit, institute
Stage unit is stated to be configurable for multiple terminals carrying out serial number.
6. communication control system according to claim 5, it is characterised in that：The transit module includes judging unit, institute
Judging unit is stated to be used to detect the load factor of transit module and send load factor information to main control end.
7. a kind of communication control method using the communication control system described in claim 6, it is characterised in that：When the terminal
When communication quality between n and main control end is less than preset communication quality threshold value, it will meet with the number difference of the terminal n most
Small, communication quality is more than preset communication quality threshold value, and load factor is less than the terminal m of preset load factor threshold value as in data
Turn station.
8. communication control method according to claim 7, it is characterised in that：
It is poor that terminal in any number threshold zone is found in upper number threshold zone according to terminal number sequence to terminal number
Value is minimum, and load factor is less than relay of the terminal of preset load factor threshold value as data transmission；
By the terminal in the most preceding threshold zone of number sorting according to terminal number sequence more than preset communication quality threshold value
It is minimum that terminal number difference is found in terminal, load factor is less than the terminal of preset load factor threshold value as data relay station.
9. communication control method according to claim 8, it is characterised in that：When data between the terminal n and main control end
When the packet loss of transmission is more than preset packet loss threshold value or the bit error rate more than preset bit error rate threshold, the terminal n is determined
Communication quality between main control end is less than preset communication quality threshold value.
10. a kind of communication control unit using the communication control method described in claim 9, including the communication control system
System, it is characterised in that：Further include display module and fault detection module,
The display module is configured to communicate to connect with the communication control system, for show the terminal and main control end it
Between communication quality data；
The fault detection module includes：
Analytic unit is configured to communicate to connect with the communication control system, for analyzing communication quality data and generating failure
Type information, the fault type information are configured as being shown by display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317459.2A CN108337135B (en) | 2018-04-10 | 2018-04-10 | Communication control system, method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317459.2A CN108337135B (en) | 2018-04-10 | 2018-04-10 | Communication control system, method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108337135A true CN108337135A (en) | 2018-07-27 |
| CN108337135B CN108337135B (en) | 2023-10-03 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810317459.2A Active CN108337135B (en) | 2018-04-10 | 2018-04-10 | Communication control system, method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222854A (en) * | 2018-11-19 | 2019-01-18 | 苏州新光维医疗科技有限公司 | Wosap tv system and its picture signal transmission method |
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| JPH08331139A (en) * | 1995-06-01 | 1996-12-13 | Fujitsu Ltd | Frame relay network and information transmission method in the network |
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| CN102511184A (en) * | 2009-09-25 | 2012-06-20 | 索尼公司 | Communication system, relay device, management server, and communication terminal |
| CN103711719A (en) * | 2013-12-13 | 2014-04-09 | 宁波东灵水暖空调配件有限公司 | Induced fan control system |
| CN105848235A (en) * | 2016-03-31 | 2016-08-10 | 乐视控股（北京）有限公司 | Communication control method and device |
| CN106160891A (en) * | 2015-03-30 | 2016-11-23 | 青岛海尔空调电子有限公司 | The detection method of communication quality and device and air-conditioning equipment |
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|---|---|---|---|---|
| JPH08331139A (en) * | 1995-06-01 | 1996-12-13 | Fujitsu Ltd | Frame relay network and information transmission method in the network |
| CN102511184A (en) * | 2009-09-25 | 2012-06-20 | 索尼公司 | Communication system, relay device, management server, and communication terminal |
| CN101997877A (en) * | 2010-11-16 | 2011-03-30 | 江苏省电力公司 | Embedded intelligent interactive terminal and communication method thereof |
| CN103711719A (en) * | 2013-12-13 | 2014-04-09 | 宁波东灵水暖空调配件有限公司 | Induced fan control system |
| CN106160891A (en) * | 2015-03-30 | 2016-11-23 | 青岛海尔空调电子有限公司 | The detection method of communication quality and device and air-conditioning equipment |
| CN105848235A (en) * | 2016-03-31 | 2016-08-10 | 乐视控股（北京）有限公司 | Communication control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109222854A (en) * | 2018-11-19 | 2019-01-18 | 苏州新光维医疗科技有限公司 | Wosap tv system and its picture signal transmission method |
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| Publication number | Publication date |
|---|---|
| CN108337135B (en) | 2023-10-03 |
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