CN117674906A - Optimization method for rapid transparent transmission of transparent transmission product based on HPLC power line carrier - Google Patents
Optimization method for rapid transparent transmission of transparent transmission product based on HPLC power line carrier Download PDFInfo
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- CN117674906A CN117674906A CN202311673042.7A CN202311673042A CN117674906A CN 117674906 A CN117674906 A CN 117674906A CN 202311673042 A CN202311673042 A CN 202311673042A CN 117674906 A CN117674906 A CN 117674906A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004128 high performance liquid chromatography Methods 0.000 title claims abstract description 12
- 238000005457 optimization Methods 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an optimization method for quick transparent transmission of a transparent transmission product based on an HPLC power line carrier, and transparent transmission of transmission data; after receiving the data to be transmitted by transparent transmission, the module increases the routing period and the beacon period of the carrier network, and correspondingly reduces the network maintenance message; the carrier network periodically transmits beacons, discovery lists and heartbeat detection network maintenance messages in each routing period; the module receives the protocol frame data and receives a preamble, and after receiving the preamble, a 20ms duration is set, the channel line is in a busy state, and data transmission can not be carried out in the duration; and (5) finishing the transmission. Compared with the prior art, the method has the advantages that the number of non-service messages can be reduced by using the optimized transparent transmission strategy, the transparent transmission utilization rate of carrier service is improved, the corresponding frame length is increased, the conflict is reduced, and the transparent transmission success rate is improved. The optimized transparent transmission strategy can be used for carrying out data transparent transmission more quickly, and the time consumption of the transparent transmission service in the transmission of the power line is reduced.
Description
Technical Field
The invention relates to a power line carrier technology, in particular to an optimization method for fast transparent transmission of a transparent transmission product based on an HPLC power line carrier.
Background
When the HPLC power line carrier network product is applied in the non-national network scene such as photovoltaic, the wiring cost is greatly reduced based on the power line communication technology. The problem that other wired communication lines such as network cables are broken and destroyed to influence the normal use of products is solved.
Disclosure of Invention
In order to solve the problems, the invention provides an optimization method for fast transparent transmission of a transparent transmission product based on an HPLC power line carrier.
The technical scheme of the invention is as follows:
an optimization method for fast transparent transmission of a transparent transmission product based on an HPLC power line carrier,
transmitting the transmission data; after receiving the data to be transmitted by transparent transmission, the module increases the routing period and the beacon period of the carrier network, and correspondingly reduces the network maintenance message;
(1) The carrier network periodically transmits beacons, discovery lists and heartbeat detection network maintenance messages in each routing period;
(2) The routing period and the beacon period are increased, and the number of beacon time slots is reduced in the beacon period, so that the time of the transparent reading service on the power line is greatly utilized by the module in each beacon period, and the retransmission times of the power line message are reduced; the data transmission needs to be transmitted in a contention slot, i.e. a CSMA slot in a beacon period that can be allocated for service use; the message is sent in the competition time slot, so that message collision and conflict generated by the transmission of the beacon time slot and the maintenance message are avoided;
(3) The module receives the protocol frame data and receives a preamble, and after receiving the preamble, a 20ms duration is set, the channel line is in a busy state, and data transmission can not be carried out in the duration;
the message sent by the module is configured with a frame length, the frame length field controlled by the frame in the protocol message is modified, other modules do not need to process the message, the priority of the message is higher than the priority to be sent by the module, and delay sending is not influenced; carrying out back-off according to the received frame length; according to CSMA-CA, carrier sense multiple access with collision avoidance, competing time slots, who sends out the carrier sense multiple access firstly, and a subsequent module carries out a time back-off after receiving a preamble symbol, so that a channel is busy, data can not be sent, and the collision of sending data is avoided;
the module generating the service increases the frame length by one response time before sending the message, other non-corresponding modules do not send network maintenance messages in the frame length period, the message conflict is reduced when the response module replies data when the response module does corresponding frame length reduction, retransmission times are reduced, and the corresponding modules are guaranteed to send data quickly;
(4) And (5) finishing the transmission.
When the data is transmitted in the competition time slot, the data is transmitted in a transparent way; and waiting for the arrival of the time slot in the competing time slot time.
The transmission mode of the transparent transmission data is as follows: the hierarchical copy modes adopted when data are transmitted on the power line are two, namely a fast mode and a slow mode; the module transmits data by using different hierarchical copy modes for a plurality of times when the power line transmits the data; selecting a principle of alternating parity frequency replacement that quick selection is firstly followed by slow selection, so as to ensure that data can be transmitted and received successfully quickly; and when the transmission times are odd times, selecting to be fast, otherwise, selecting to be slow.
When the module is used for short service message, frame control is used for message expansion, 8 bytes are used for reserving fields, the frame control length is 16 bytes, the minimum data blocks of the rest service messages are 72 bytes (72/136/264/520), the frame control is selected when the module is used for special service, and the transmission rate can be improved by about 78% when the minimum data block rate is smaller.
Compared with the prior art: the invention has the beneficial effects that:
1. the number of non-service messages can be reduced by using the optimized transparent transmission strategy, the transparent transmission utilization rate of carrier service is improved, the corresponding frame length is increased, the conflict is reduced, and the transparent transmission success rate is improved.
2. The optimized transparent transmission strategy can be used for carrying out data transparent transmission more quickly, and the time consumption of the transparent transmission service in the transmission of the power line is reduced.
Drawings
FIG. 1 data Transmission flow
FIG. 2 data transmission scheme selection flow
Fig. 3 frame length adding and processing flow
FIG. 4 is a flow chart for selecting a frame to control transmission
Detailed Description
As shown in fig. 1-4: an optimization method for fast transparent transmission of a transparent transmission product based on an HPLC power line carrier,
transmitting the transmission data; after receiving the data to be transmitted by transparent transmission, the module increases the routing period and the beacon period of the carrier network, and correspondingly reduces the network maintenance message;
(1) The carrier network periodically transmits beacons, discovery lists and heartbeat detection network maintenance messages in each routing period;
(2) The routing period and the beacon period are increased, and the number of beacon time slots is reduced in the beacon period, so that the time of the transparent reading service on the power line is greatly utilized by the module in each beacon period, and the retransmission times of the power line message are reduced; the data transmission needs to be transmitted in a contention slot, i.e. a CSMA slot in a beacon period that can be allocated for service use; the message is sent in the competition time slot, so that message collision and conflict generated by the transmission of the beacon time slot and the maintenance message are avoided;
(3) The module receives the protocol frame data and receives a preamble, and after receiving the preamble, a 20ms duration is set, the channel line is in a busy state, and data transmission can not be carried out in the duration;
the message sent by the module is configured with a frame length, the frame length field controlled by the frame in the protocol message is modified, other modules do not need to process the message, the priority of the message is higher than the priority to be sent by the module, and delay sending is not influenced; carrying out back-off according to the received frame length; according to CSMA-CA, carrier sense multiple access with collision avoidance, competing time slots, who sends out the carrier sense multiple access firstly, and a subsequent module carries out a time back-off after receiving a preamble symbol, so that a channel is busy, data can not be sent, and the collision of sending data is avoided;
the module generating the service increases the frame length by one response time before sending the message, other non-corresponding modules do not send network maintenance messages in the frame length period, the message conflict is reduced when the response module replies data when the response module does corresponding frame length reduction, retransmission times are reduced, and the corresponding modules are guaranteed to send data quickly;
(4) And (5) finishing the transmission.
When the data is transmitted in the competition time slot, the data is transmitted in a transparent way; and waiting for the arrival of the time slot in the competing time slot time.
The transmission mode of the transparent transmission data is as follows: the hierarchical copy modes adopted when data are transmitted on the power line are two, namely a fast mode and a slow mode; the module transmits data by using different hierarchical copy modes for a plurality of times when the power line transmits the data; selecting a principle of alternating parity frequency replacement that quick selection is firstly followed by slow selection, so as to ensure that data can be transmitted and received successfully quickly; and when the transmission times are odd times, selecting to be fast, otherwise, selecting to be slow.
When the module is used for short service message, frame control is used for message expansion, 8 bytes are used for reserving fields, the frame control length is 16 bytes, the minimum data blocks of the rest service messages are 72 bytes (72/136/264/520), the frame control is selected when the module is used for special service, and the transmission rate can be improved by about 78% when the minimum data block rate is smaller.
After the module receives the data to be transmitted in a transparent way, judging according to the length of the data, and selecting different modulation modes according to different lengths, so that the waste of transmission time for transmitting excessive invalid data is avoided.
According to the data block size selected by the data, when the data length is smaller than 8 bytes, the frame control (total length 16 bytes) is used for transmitting, and the transmitting time length can be saved by 78%.
When the module uses the 72/136/264/520 data block to transmit, two different modulation modes are selected according to the number of times of transmission, and the sequence of the two modes is firstly fast and then slow, so that the data transmission speed is improved, and the success rate of the multiple transmission and the reception is ensured.
And adding 20ms when the data frame fills in the message duration, and not transmitting data in the duration when other modules receive the message, so that the idle channel is ensured when the module needing to reply transmits. And the method effectively avoids channel conflict and retransmission when the channel is busy and waiting for idle, and a module needing replying removes the added 20ms time and quickly returns uplink message data.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and that a person skilled in the art may still make modifications and equivalents to the specific embodiments of the present invention with reference to the above-mentioned embodiments, and any modifications and equivalents not departing from the spirit and scope of the present invention are within the scope of the invention as claimed in the pending application.
Claims (4)
1. An optimization method for fast transparent transmission of transparent transmission products based on an HPLC power line carrier is characterized by comprising the following steps:
transmitting the transmission data; after receiving the data to be transmitted by transparent transmission, the module increases the routing period and the beacon period of the carrier network, and correspondingly reduces the network maintenance message;
(1) The carrier network periodically transmits beacons, discovery lists and heartbeat detection network maintenance messages in each routing period;
(2) The routing period and the beacon period are increased, and the number of beacon time slots is reduced in the beacon period, so that the time of the transparent reading service on the power line is greatly utilized by the module in each beacon period, and the retransmission times of the power line message are reduced; the data transmission needs to be transmitted in a contention slot, i.e. a CSMA slot in a beacon period that can be allocated for service use; the message is sent in the competition time slot, so that message collision and conflict generated by the transmission of the beacon time slot and the maintenance message are avoided;
(3) The module receives the protocol frame data and receives a preamble, and after receiving the preamble, a 20ms duration is set, the channel line is in a busy state, and data transmission can not be carried out in the duration;
the message sent by the module is configured with a frame length, the frame length field controlled by the frame in the protocol message is modified, other modules do not need to process the message, the priority of the message is higher than the priority to be sent by the module, and delay sending is not influenced; carrying out back-off according to the received frame length; according to CSMA-CA, carrier sense multiple access with collision avoidance, competing time slots, who sends out the carrier sense multiple access firstly, and a subsequent module carries out a time back-off after receiving a preamble symbol, so that a channel is busy, data can not be sent, and the collision of sending data is avoided;
the module generating the service increases the frame length by one response time before sending the message, other non-corresponding modules do not send network maintenance messages in the frame length period, the message conflict is reduced when the response module replies data when the response module does corresponding frame length reduction, retransmission times are reduced, and the corresponding modules are guaranteed to send data quickly;
(4) And (5) finishing the transmission.
2. The optimization method for rapid transparent transmission of the transparent transmission product based on the power line carrier of the HPLC according to claim 1, which is characterized in that: when the data is transmitted in the competition time slot, the data is transmitted in a transparent way; and waiting for the arrival of the time slot in the competing time slot time.
3. The optimization method for rapid transparent transmission of the transparent transmission product based on the power line carrier of the HPLC according to claim 1, which is characterized in that: the transmission mode of the transparent transmission data is as follows: the hierarchical copy modes adopted when data are transmitted on the power line are two, namely a fast mode and a slow mode; the module transmits data by using different hierarchical copy modes for a plurality of times when the power line transmits the data; selecting a principle of alternating parity frequency replacement that quick selection is firstly followed by slow selection, so as to ensure that data can be transmitted and received successfully quickly; and when the transmission times are odd times, selecting to be fast, otherwise, selecting to be slow.
4. The optimization method for rapid transparent transmission of the transparent transmission product based on the power line carrier of the HPLC according to claim 1, which is characterized in that: when the module is used for short service message, frame control is used for message expansion, 8 bytes are used for reserving fields, the frame control length is 16 bytes, the minimum data blocks of the rest service messages are 72 bytes (72/136/264/520), the frame control is selected when the module is used for special service, and the transmission rate can be improved by about 78% when the minimum data block rate is smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311673042.7A CN117674906A (en) | 2023-12-07 | 2023-12-07 | Optimization method for rapid transparent transmission of transparent transmission product based on HPLC power line carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311673042.7A CN117674906A (en) | 2023-12-07 | 2023-12-07 | Optimization method for rapid transparent transmission of transparent transmission product based on HPLC power line carrier |
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| Publication Number | Publication Date |
|---|---|
| CN117674906A true CN117674906A (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311673042.7A Pending CN117674906A (en) | 2023-12-07 | 2023-12-07 | Optimization method for rapid transparent transmission of transparent transmission product based on HPLC power line carrier |
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| CN (1) | CN117674906A (en) |
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2023
- 2023-12-07 CN CN202311673042.7A patent/CN117674906A/en active Pending
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