CN117439635B - Master-slave communication device of active distribution system and implementation method - Google Patents
Master-slave communication device of active distribution system and implementation method Download PDFInfo
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Abstract
The invention relates to the technical field of communication equipment, in particular to a master-slave communication device of an active distribution system and an implementation method thereof, wherein the master-slave communication device comprises a near-end unit, an extension unit and a far-end unit, the near-end unit comprises a first monitoring module and a first communication module, the first monitoring module is in communication connection with the first communication module, the first monitoring module is used as a host, the first communication module is used for coupling communication signals to a main chain, the first communication module is also used for receiving the communication signals, and converting the received communication signals into characters and transmitting the characters to the first monitoring module; the invention has four communication modules, the communication module can couple the communication signal to the main link, or couple the communication signal in the main link to the corresponding host, slave or slave, so that the invention does not need to add a large number of digital devices in the network element.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a master-slave communication device of an active distribution system and an implementation method.
Background
At present, the continuous development of mobile communication technology, large capacity and wide coverage become the main demands and evolution trend of the current mobile communication network, and the indoor distribution system is the typical application and the main coverage means of the mobile communication network to the extent and depth development, and the existing indoor distribution system is mainly divided into an active distribution system and a passive distribution system.
At present, an active distribution system consists of a near-end unit, an expansion unit and a far-end unit, a networking mode is more complex, communication interaction is inevitably needed among network element units for state inquiry and reporting, networking topology structure acquisition, switching, gain control and the like. How to effectively and stably perform master-slave communication among a near-end unit, an extension unit and a far-end unit is a problem to be solved by those skilled in the art.
In the prior art, the common master-slave communication scheme is communication through a network port or an optical port, and the two communication means are applicable to large-scale digital distribution systems such as BBU+RRU, and have high requirements on software and hardware and high cost; however, for the analog distribution system, because analog radio frequency signals are directly transmitted between the network element units and digital signal interaction is not performed, network port or optical port communication cannot be performed. It is therefore a difficulty how to perform master-slave communication efficiently and stably. In view of this, we propose an active distributed system master-slave communication device and implementation method to solve the above-mentioned drawbacks well.
Disclosure of Invention
The invention aims to provide a master-slave communication device of an active distribution system and an implementation method thereof, which are used for solving the problems in the background technology.
The invention is realized by the following technical scheme: the active distribution system master-slave communication device comprises a near-end unit, an expansion unit and a far-end unit, wherein the near-end unit comprises a first monitoring module and a first communication module, the first monitoring module is in communication connection with the first communication module, the first monitoring module is used as a host and used for encoding and sending instruction characters to the first communication module, the first communication module is used for coupling communication signals to a main link, and the first communication module is also used for receiving the communication signals and converting the received communication signals into characters to be sent to the first monitoring module;
the expansion unit comprises a second monitoring module, a second communication module and a third communication module, wherein the second monitoring module is in communication connection with the second communication module and the third communication module, the second monitoring module is used as a slave, and the second monitoring module is used for receiving and analyzing character information sent by the second communication module and the third communication module and also used for encoding and sending instruction characters to the second communication module and the third communication module; the second communication module and the third communication module are used for coupling communication signals to a main link, converting instruction characters sent by the second monitoring module into communication signals and sending the communication signals, receiving the communication signals, converting the received communication signals into characters and sending the characters to the second monitoring module;
the remote unit comprises a third monitoring module and a fourth communication module, wherein the third monitoring module is in communication connection with the fourth communication module, the third monitoring module is used as a slave, the third monitoring module is used for coding and transmitting instruction characters to the fourth communication module, the fourth communication module is used for coupling communication signals to a main link, and the fourth communication module is also used for receiving the instruction characters transmitted by the third monitoring module and converting the instruction characters into communication signals to be transmitted; the fourth communication module is further configured to receive a communication signal, convert the received communication signal into a character, and send the character to the third monitoring module.
Optionally, the first communication module, the second communication module, the third communication module and the fourth communication module are all composed of a communication module, a first filter, a coupling device, a second filter and an interface module;
the communication module is used for converting instruction characters into communication signals and also used for receiving the communication signals and converting the communication signals into information characters;
the first filter is used for filtering communication signals, ensuring unidirectional transmission of the communication signals and avoiding mutual interference of the communication signals of different network element units;
the coupling device is connected with the communication module and is used for coupling communication signals to the main link and coupling communication signals in the main link to the communication module;
the second filter is arranged in a circuit of the coupling device connected with the communication module and is used for filtering radio frequency signals in the main link and also used for filtering other spurious signals sent by the communication module to interfere with the radio frequency signals in the main link;
the interface module is connected with the communication module and is used for enabling the communication module to be connected with other modules.
Optionally, the communication module adopts any one of an FSK module, a bluetooth module or a WIFI module.
The invention also provides a master-slave communication implementation method of the active distribution system, which is suitable for the master-slave communication device of the active distribution system, wherein the step of sending a control instruction to the slave by the host is as follows:
s1: the first monitoring module sends an instruction code to the first communication module;
s2: the first communication module converts the instruction codes into communication signals, couples the communication signals to the main link and then transmits the communication signals to the expansion unit through a transmission medium between the near-end unit and the expansion unit;
s3: the second communication module is coupled from a main link to receive the communication signal sent by the first communication module, converts the communication signal into an instruction code and sends the instruction code to the second monitoring module;
s4: the second monitoring module analyzes the received instruction codes and executes instructions for controlling the slave machine or sends the instruction codes for controlling the slave machine to the third communication module;
s5: the third communication module converts the received instruction codes sent by the second monitoring module into communication signals, is coupled to the main link and then transmits the communication signals to the remote unit through a transmission medium between the expansion unit and the remote unit;
s6: the fourth communication module is coupled to receive the communication signal sent by the third communication module from the main link and converts the communication signal into an instruction code to be sent to the third monitoring module;
s7: and the third monitoring module analyzes the received instruction codes and executes the instruction for controlling the slave.
Optionally, the transmission medium between the near-end unit and the extension unit and the transmission medium between the extension unit and the far-end unit adopt analog optical fibers or radio frequency cables.
The execution steps of the slave machine reporting information to the host machine are as follows:
s8: the third monitoring module converts the information to be reported into an information code and sends the information code to the fourth monitoring module;
s9: the fourth communication module receives the information code sent by the third monitoring module, converts the information code into a communication signal, couples the communication signal to the main link and transmits the communication signal to the expansion unit through a transmission medium between the expansion unit and the remote unit;
s10: the third communication module is coupled with the main link to receive the communication signal sent by the fourth communication module, converts the communication signal into an information code and sends the information code to the second monitoring module;
s11: the second monitoring module receives the information code sent by the third communication module, integrates and codes the information code and sends the information code to the second communication module;
s12: the second communication module receives the information code sent by the second monitoring module and converts the information code into a communication signal, and the second communication module couples the communication signal to the main link and transmits the communication signal to the near-end unit through a transmission medium between the expansion unit and the near-end unit;
s13: the first communication module is coupled with the main link to receive the communication signal sent by the second communication module, converts the communication signal into an information code and sends the information code to the first monitoring module;
s14: the first monitoring module receives the information code sent by the first communication module, and analyzes and stores the information code or reports the information code to a network manager.
Compared with the prior art, the invention provides the master-slave communication device of the active distribution system and the realization method thereof, which have the following beneficial effects:
the invention has four communication modules, the communication module can couple the communication signal to the main link, or couple the communication signal in the main link to the corresponding host, slave or slave, so that the invention does not need to add a large number of digital devices in the network element.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic diagram of a communication module according to the present invention;
FIG. 3 is a flow chart of a master sending control instructions to a slave according to the present invention;
FIG. 4 is a flow chart of the method for reporting information from a slave to a host.
In the figure: 100. a proximal unit; 101. a first monitoring module; 102. a first communication module; 200. an expansion unit; 201. a second monitoring module; 202. a second communication module; 203. a third communication module; 300. a remote unit; 301. a third monitoring module; 302. a fourth communication module; 401. a communication module; 402. a first filter; 403. a coupling device; 404. a second filter; 405. and an interface module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-2, an active distribution system master-slave communication device includes a near-end unit 100, an extension unit 200, and a far-end unit 300, where the near-end unit 100 includes a first monitoring module 101 and a first communication module 102, the first monitoring module 101 is in communication connection with the first communication module 102, the first monitoring module 101 is used as a host, and is used for receiving and analyzing character information sent by the first communication module 102, and also used for encoding and sending instruction characters to the first communication module 102; the first communication module 102 is configured to couple a communication signal to the main link, and the first communication module 102 is further configured to receive the communication signal, convert the received communication signal into a character, and send the character to the first monitoring module 101.
The expansion unit 200 comprises a second monitoring module 201, a second communication module 202 and a third communication module 203, wherein the second monitoring module 201 is in communication connection with the second communication module 202 and the third communication module 203, the second monitoring module 201 serves as a slave, the second monitoring module 201 is used for receiving and analyzing character information sent by the second communication module 202 and the third communication module 203, and is also used for encoding and sending instruction characters to the second communication module 202 and the third communication module 203; the second communication module 202 and the third communication module 203 are configured to couple a communication signal to the main link, and are further configured to convert an instruction character sent by the second monitoring module 201 into a communication signal and send the communication signal, and are further configured to receive the communication signal and convert the received communication signal into a character and send the character to the second monitoring module 201; specifically, the two are used for converting the communication signals into information characters and transmitting the information characters to the slave.
The remote unit 300 comprises a third monitoring module 301 and a fourth communication module 302, the third monitoring module 301 and the fourth communication module 302 are in communication connection, the third monitoring module 301 is used as a slave, the third monitoring module 301 is used for encoding and transmitting command characters to the fourth communication module 302, the fourth communication module 302 is used for coupling communication signals to a main link, and the fourth communication module 302 is also used for receiving the command characters transmitted by the third monitoring module 301 and converting the command characters into communication signals to be transmitted; the fourth communication module 302 is further configured to receive a communication signal, convert the received communication signal into a character, and send the character to the third monitoring module 301; specifically, the third monitoring module 301 is configured to parse and execute an instruction sent by the slave, and report information to the slave; in addition, the second monitoring module 201 is configured to distribute the instruction sent by the host, and is further configured to collect the information reported from the slave and transmit the information to the host.
It should be noted that, the first communication module 102, the second communication module 202, the third communication module 203, and the fourth communication module 302 are all composed of a communication module 401, a first filter 402, a coupling device 403, a second filter 404, and an interface module 405; specifically, the communication module 401 is configured to convert an instruction character into a communication signal, and further configured to receive the communication signal and convert the communication signal into an information character, and the communication module 401 adopts any one of an FSK module, a bluetooth module, or a WIFI module.
As shown in fig. 2, the first filter 402 is configured to filter the communication signal, ensure unidirectional transmission of the communication signal, and avoid mutual interference of the communication signals of different network element units; the coupling device 403 is connected to the communication module 401, and is used for coupling the communication signal to the main link and also used for coupling the communication signal in the main link to the communication module 401; the second filter 404 is disposed in a line where the coupling device 403 is connected to the communication module 401, and is used for filtering the radio frequency signal in the main link, and is also used for filtering other spurious signals sent by the communication module 401 to interfere with the radio frequency signal in the main link; the interface module 405 is connected with the communication module 401, and is used for connecting the communication module 401 with other modules to perform module power supply and information interaction with the monitoring module.
Example 2
Referring to fig. 3 and fig. 4, an embodiment of the present application provides a method for implementing master-slave communication of an active distribution system, which is applicable to a master-slave communication device of an active distribution system in embodiment 1, wherein the steps of sending a control command from a host to a slave are as follows:
s1: the first monitoring module 101 sends the instruction code to the first communication module 102;
s2: the first communication module 102 converts the instruction codes into communication signals and couples the communication signals to the main link and then transmits to the expansion unit 200 through a transmission medium between the near-end unit 100 and the expansion unit 200; it should be noted that, the transmission medium between the proximal unit 100 and the expansion unit 200 adopts an analog optical fiber or a radio frequency cable;
s3: the second communication module 202 receives the communication signal sent by the first communication module 102 from the main link coupling, and converts the communication signal into an instruction code to send to the second monitoring module 201;
s4: the second monitoring module 201 analyzes the received instruction code and executes the instruction for controlling the slave or transmits the instruction code for controlling the slave to the third communication module;
s5: the third communication module 203 converts the received command code sent by the second monitoring module 201 into a communication signal, couples to the main link, and then transmits the communication signal to the remote unit 300 through a transmission medium between the extension unit 200 and the remote unit 300; it should be noted that the transmission medium between the expansion unit 200 and the remote unit 300 simulates an optical fiber or a radio frequency cable;
s6: the fourth communication module 302 is coupled to receive the communication signal sent by the third communication module 203 from the main link, and converts the communication signal into an instruction code and sends the instruction code to the third monitoring module 301;
s7: the third monitoring module 301 parses the received instruction code and executes the instruction for controlling the slave.
In addition, the execution steps of the slave to report information to the host are as follows:
s8: the third monitoring module 301 converts the information to be reported into an information code and sends the information code to the fourth monitoring module 302;
s9: the fourth communication module 302 receives the information code transmitted by the third monitoring module 301, converts the information code into a communication signal, couples the communication signal to the main link, and transmits the communication signal to the extension unit 200 through a transmission medium between the extension unit 200 and the remote unit 300;
s10: the third communication module 203 is coupled to receive the communication signal sent by the fourth communication module 302 from the main link, and converts the communication signal into an information code to send the information code to the second monitoring module 201;
s11: the second monitoring module 201 receives the information code sent by the third communication module 203, performs integration coding on the information code, and sends the information code to the second communication module 202;
s12: the second communication module 202 receives the information code sent by the second monitoring module 201 and converts the information code into a communication signal, and the second communication module 202 couples the communication signal to the main link and transmits the communication signal to the near-end unit 100 through a transmission medium between the expansion unit 200 and the near-end unit 100;
s13: the first communication module 102 receives the communication signal sent by the second communication module 202 from the main link coupling, converts the communication signal into an information code and sends the information code to the first monitoring module 101;
s14: the first monitoring module 101 receives the information code sent by the first communication module 102, and parses the information code for storage or reports to a network manager.
In summary, the embodiment performs master-slave communication by coupling the communication signal to the main link, without adding a large number of digital devices in the network element, and is suitable for simulating the active distribution system, so that the circuit structure is simple, and the communication cost is greatly reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An active distribution system master-slave communication device comprising a near-end unit (100), an expansion unit (200) and a far-end unit (300), characterized in that:
the near-end unit (100) comprises a first monitoring module (101) and a first communication module (102), wherein the first monitoring module (101) is in communication connection with the first communication module (102), the first monitoring module (101) is used as a host for encoding and sending instruction characters to the first communication module (102), the first communication module (102) is used for coupling communication signals to a main link, and the first communication module (102) is also used for receiving the communication signals and converting the received communication signals into characters to be sent to the first monitoring module (101);
the expansion unit (200) comprises a second monitoring module (201), a second communication module (202) and a third communication module (203), wherein the second monitoring module (201) is in communication connection with the second communication module (202) and the third communication module (203), the second monitoring module (201) serves as a slave, and the second monitoring module (201) is used for receiving and analyzing character information sent by the second communication module (202) and the third communication module (203) and also used for encoding and sending instruction characters to the second communication module (202) and the third communication module (203); the second communication module (202) and the third communication module (203) are used for coupling communication signals to a main link, converting instruction characters sent by the second monitoring module (201) into communication signals and sending the communication signals, receiving the communication signals, converting the received communication signals into characters and sending the characters to the second monitoring module (201);
the remote unit (300) comprises a third monitoring module (301) and a fourth communication module (302), the third monitoring module (301) and the fourth communication module (302) are in communication connection, the third monitoring module (301) serves as a slave, the third monitoring module (301) is used for encoding and transmitting instruction characters to the fourth communication module (302), the fourth communication module (302) is used for coupling communication signals to a main link, and the fourth communication module (302) is also used for receiving the instruction characters transmitted by the third monitoring module (301) and converting the instruction characters into communication signals to be transmitted; the fourth communication module (302) is further configured to receive a communication signal, and convert the received communication signal into a character and send the character to the third monitoring module (301).
2. An active distributed system master-slave communication device according to claim 1, wherein: the first communication module (102), the second communication module (202), the third communication module (203) and the fourth communication module (302) are composed of a communication module (401), a first filter (402), a coupling device (403), a second filter (404) and an interface module (405);
the communication module (401) is used for converting instruction characters into communication signals, and is also used for receiving the communication signals and converting the communication signals into information characters;
the first filter (402) is used for filtering communication signals, ensuring unidirectional transmission of the communication signals and avoiding mutual interference of the communication signals of different network element units;
the coupling device (403) is connected with the communication module (401) and is used for coupling communication signals to a main link and is also used for coupling communication signals in the main link to the communication module (401);
the second filter (404) is arranged in a line connected with the communication module (401) by the coupling device (403) and is used for filtering radio frequency signals in the main link and also used for filtering other stray signals sent by the communication module (401) to interfere with the radio frequency signals in the main link;
the interface module (405) is connected with the communication module (401) and is used for connecting the communication module (401) with other modules.
3. An active distributed system master-slave communication device according to claim 2, wherein: the communication module (401) adopts any one of an FSK module, a Bluetooth module or a WIFI module.
4. A method for implementing master-slave communication of an active distribution system, which is applicable to a master-slave communication device of an active distribution system according to any one of claims 1-3, and is characterized in that the step of sending a control command from a host to a slave is as follows:
s1: -the first monitoring module (101) sends instruction codes to the first communication module (102);
s2: the first communication module (102) converts the instruction code into a communication signal and couples the communication signal to the main link and then transmits the communication signal to the expansion unit (200) through a transmission medium between the near-end unit (100) and the expansion unit (200);
s3: the second communication module (202) is coupled to receive the communication signal sent by the first communication module (102) from the main link and converts the communication signal into an instruction code to be sent to the second monitoring module (201);
s4: the second monitoring module (201) analyzes the received instruction codes and executes instructions for controlling the slave machine or sends the instruction codes for controlling the slave machine to the third communication module;
s5: the third communication module (203) converts the received instruction codes sent by the second monitoring module (201) into communication signals, and couples the communication signals to a main link, and then transmits the communication signals to the remote unit (300) through a transmission medium between the expansion unit (200) and the remote unit (300);
s6: the fourth communication module (302) is coupled to receive the communication signal sent by the third communication module (203) from the main link, and converts the communication signal into an instruction code to send to the third monitoring module (301);
s7: the third monitoring module (301) analyzes the received instruction codes and executes instructions for controlling the slave.
5. The method for implementing master-slave communication of an active distribution system according to claim 4, wherein: the transmission medium between the near-end unit (100) and the expansion unit (200) and the transmission medium between the expansion unit (200) and the far-end unit (300) adopt analog optical fibers or radio frequency cables.
6. The method for implementing master-slave communication of active distribution system according to claim 4, wherein the step of reporting information from the slave to the master is performed as follows:
s8: the third monitoring module (301) converts the information to be reported into an information code and sends the information code to the fourth communication module (302);
s9: the fourth communication module (302) receives the information code sent by the third monitoring module (301), converts the information code into a communication signal, couples the communication signal to the main link, and transmits the communication signal to the expansion unit (200) through a transmission medium between the expansion unit (200) and the remote unit (300);
s10: the third communication module (203) is coupled to receive the communication signal sent by the fourth communication module (302) from the main link, converts the communication signal into an information code and sends the information code to the second monitoring module (201);
s11: the second monitoring module (201) receives the information code sent by the third communication module (203), performs integration coding on the information code and sends the information code to the second communication module (202);
s12: the second communication module (202) receives the information code sent by the second monitoring module (201) and converts the information code into a communication signal, and the second communication module (202) couples the communication signal to the main link and transmits the communication signal to the near-end unit (100) through a transmission medium between the expansion unit (200) and the near-end unit (100);
s13: the first communication module (102) is coupled to receive the communication signal sent by the second communication module (202) from the main link and converts the communication signal into an information code to be sent to the first monitoring module (101);
s14: the first monitoring module (101) receives the information code sent by the first communication module (102), and analyzes and stores or reports the information code to a network manager.
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| CN113950062A (en) * | 2020-06-30 | 2022-01-18 | 中国移动通信集团设计院有限公司 | Home broadband device supporting 5G signal coverage |
| CN112804691A (en) * | 2021-01-29 | 2021-05-14 | 京信网络系统股份有限公司 | Indoor distribution system and signal transmission method |
| CN214851267U (en) * | 2021-06-06 | 2021-11-23 | 广州市瀚云信息技术有限公司 | Low-power microdistribution system with monitoring device |
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