CN113891448B - Ad hoc network communication method and terminal - Google Patents
Ad hoc network communication method and terminal Download PDFInfo
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- CN113891448B CN113891448B CN202111080951.0A CN202111080951A CN113891448B CN 113891448 B CN113891448 B CN 113891448B CN 202111080951 A CN202111080951 A CN 202111080951A CN 113891448 B CN113891448 B CN 113891448B
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- 238000004891 communication Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 238000013480 data collection Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims description 8
- 238000012795 verification Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- 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 provides an ad hoc network communication method and a terminal, which are used for generating a detection signal and receiving a feedback signal of a preset collector relative to the detection signal; determining the synchronous condition of the preset collector according to the feedback signal, and sending a data collection starting signal if the synchronous condition is complete; the invention transmits the detection signal before starting data acquisition, receives the feedback signal transmitted by the equipment on each node in the network according to the detection signal, realizes the verification of the synchronism condition of the equipment on each node in the network, ensures the synchronism of the acquired data if the data collection signal is completely synchronous and resent for data acquisition, ensures the implementation of the acquired data, and can acquire the delay condition in the transmission line so as to realize the synchronization of a plurality of nodes in the network.
Description
Technical Field
The present invention relates to the field of data communications, and in particular, to an ad hoc network communication method and a terminal.
Background
In the process of collecting data of a device, high requirements are generally placed on the synchronism of the communication of the device, the synchronism determines the accuracy of the data, and meanwhile, the data needs to be high in real-time performance, so that the time difference between the generation of the data and the receiving of the data needs to be shortened. However, some devices, especially those in the power grid, are often in environments with relatively bad network conditions, such as in basements without mobile signal coverage, and the harmonic wave and mutation of the time power grid have high interference degree on data acquisition, so that the influence of the interference can be reduced to a certain extent by improving the synchronism and the real-time performance.
However, in places with weak signal coverage such as basements, the network clock cannot be effectively synchronized or has strong delay, so that the data or state of the multi-node acquisition is inaccurate.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: an ad hoc network communication method and a terminal are provided, which realize synchronization of a plurality of nodes in a network.
In order to solve the technical problems, the invention adopts a technical scheme that:
an ad hoc network communication method, comprising the steps of:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal.
In order to solve the technical problems, the invention adopts another technical scheme that:
an ad hoc network communication terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal.
The invention has the beneficial effects that: and sending a detection signal before starting data acquisition, receiving feedback signals sent by equipment on each node in the network according to the detection signal, realizing verification of the synchronism condition of the equipment on each node in the network, and if the data collection signals are completely synchronous and resent to start data collection for data acquisition, ensuring the synchronism of acquired data, ensuring the implementation of the acquired data, acquiring the delay condition in a transmission line and realizing the synchronization of a plurality of nodes in the network.
Drawings
Fig. 1 is a flowchart illustrating steps of an ad hoc network communication method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ad hoc network communication terminal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a transmit distortion current according to an embodiment of the present invention;
FIG. 4 is a diagram of a fully synchronous received distortion current according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a delayed reception distortion current according to an embodiment of the present invention;
FIG. 6 is a diagram of a completely unsynchronized received distortion current according to an embodiment of the present invention;
description of the reference numerals:
1. an ad hoc network communication terminal; 2. a processor; 3. a memory.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, 3 and 4, a marking error confirmation method includes the steps of:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal.
From the above description, the beneficial effects of the invention are as follows: and sending a detection signal before starting data acquisition, receiving feedback signals sent by equipment on each node in the network according to the detection signal, realizing verification of the synchronism condition of the equipment on each node in the network, and if the data collection signals are completely synchronous and resent to start data collection for data acquisition, ensuring the synchronism of acquired data, ensuring the implementation of the acquired data, acquiring the delay condition in a transmission line and realizing the synchronization of a plurality of nodes in the network.
Further, the detection signal includes a distorted current signal;
the S1 specifically comprises the following steps:
transmitting the distortion current signal according to a preset frequency, and recording the transmission times of the distortion current signal;
receiving feedback signals of the preset collector about the distortion current signals, wherein the feedback signals comprise the receiving times of the distortion current signals;
the step S2 is specifically as follows:
and judging whether the sending times are equal to the receiving times, if so, the synchronization condition of the preset collector is completely synchronous.
From the above description, it is clear that: the distorted current with preset frequency is internally transmitted as a detection signal, the transmission times of the distorted current are recorded, the feedback signal transmitted by the preset collector comprises the receiving times of the distorted current received by the feedback signal, the transmission times and the receiving times are compared, if the transmission times and the receiving times are the same, the clock synchronization of the sender and the receiver is normal, at the moment, the data signal is transmitted and collected, and the synchronism between the preset collector and the distorted current transmitting end can be ensured.
Further, the preset collector comprises a plurality of collectors;
the S2 includes:
if the synchronization condition of the preset collector is complete synchronization, marking the preset collector as a target preset collector;
the step S3 comprises the following steps:
and sending a data collection starting signal to the target preset collector.
As can be seen from the above description, in the case of including a plurality of preset collectors, the preset collector whose synchronization condition is completely synchronized is marked as a target preset collector, and a start data collection signal is transmitted to the target preset collector, and since the plurality of target preset collectors all receive the detection signal transmitted at the same time, the synchronicity between the plurality of target preset collectors is ensured.
Further, the step S2 includes:
if the synchronization condition of the preset collector is asynchronous, marking the preset collector as the preset collector to be detected;
and sending the position of the preset collector to be detected.
From the above description, if the preset collectors are not synchronized, the preset collectors are marked as to-be-detected preset collectors, and the corresponding positions are sent, so that the maintainer can perform maintenance or further test through the positions, and adjust to synchronize all the preset collectors.
Further, S1 is preceded by:
and sending a wake-up signal to a preset collector, wherein the wake-up signal is an encryption signal.
As can be seen from the above description, the preset collector is awakened by the detection signal, and then the feedback signal is generated after the wake-up, and the preset collector is awakened to generate the feedback signal after the detection signal is received, so that the synchronism between the preset collector and the sender can be more easily judged, i.e. if the preset collector is not synchronous, the wake-up time is too early or too late, so that the corresponding feedback signal cannot be sent.
An ad hoc network communication terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal.
From the above description, the beneficial effects of the invention are as follows: and sending a detection signal before starting data acquisition, receiving feedback signals sent by equipment on each node in the network according to the detection signal, realizing verification of the synchronism condition of the equipment on each node in the network, and if the data collection signals are completely synchronous and resent to start data collection for data acquisition, ensuring the synchronism of acquired data, ensuring the implementation of the acquired data, acquiring the delay condition in a transmission line and realizing the synchronization of a plurality of nodes in the network.
Further, the detection signal includes a distorted current signal;
the S1 specifically comprises the following steps:
transmitting the distortion current signal according to a preset frequency, and recording the transmission times of the distortion current signal;
receiving feedback signals of the preset collector about the distortion current signals, wherein the feedback signals comprise the receiving times of the distortion current signals;
the step S2 is specifically as follows:
and judging whether the sending times are equal to the receiving times, if so, the synchronization condition of the preset collector is completely synchronous.
From the above description, it is clear that: the distorted current with preset frequency is internally transmitted as a detection signal, the transmission times of the distorted current are recorded, the feedback signal transmitted by the preset collector comprises the receiving times of the distorted current received by the feedback signal, the transmission times and the receiving times are compared, if the transmission times and the receiving times are the same, the clock synchronization of the sender and the receiver is normal, at the moment, the data signal is transmitted and collected, and the synchronism between the preset collector and the distorted current transmitting end can be ensured.
Further, the preset collector comprises a plurality of collectors;
the S2 includes:
if the synchronization condition of the preset collector is complete synchronization, marking the preset collector as a target preset collector;
the step S3 comprises the following steps:
and sending a data collection starting signal to the target preset collector.
As can be seen from the above description, in the case of including a plurality of preset collectors, the preset collector whose synchronization condition is completely synchronized is marked as a target preset collector, and a start data collection signal is transmitted to the target preset collector, and since the plurality of target preset collectors all receive the detection signal transmitted at the same time, the synchronicity between the plurality of target preset collectors is ensured.
Further, the step S2 includes:
if the synchronization condition of the preset collector is asynchronous, marking the preset collector as the preset collector to be detected;
and sending the position of the preset collector to be detected.
From the above description, if the preset collectors are not synchronized, the preset collectors are marked as to-be-detected preset collectors, and the corresponding positions are sent, so that the maintainer can perform maintenance or further test through the positions, and adjust to synchronize all the preset collectors.
Further, S1 is preceded by:
and sending a wake-up signal to a preset collector, wherein the wake-up signal is an encryption signal.
As can be seen from the above description, the preset collector is awakened by the detection signal, and then the feedback signal is generated after the wake-up, and the preset collector is awakened to generate the feedback signal after the detection signal is received, so that the synchronism between the preset collector and the sender can be more easily judged, i.e. if the preset collector is not synchronous, the wake-up time is too early or too late, so that the corresponding feedback signal cannot be sent.
Referring to fig. 1 and fig. 3-6, a first embodiment of the present invention is as follows:
an ad hoc network communication method, comprising the steps of:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
in an alternative embodiment, the acquisition concentrator generates and transmits a detection signal, where the detection signal includes a distortion current signal, S1 is specifically: transmitting the distortion current signal according to a preset frequency, and recording the transmission times of the distortion current signal; receiving feedback signals of the preset collector about the distortion current signals, wherein the feedback signals comprise the receiving times of the distortion current signals; wherein, the feedback signal can also include the receiving frequency of the distorted current signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is complete, wherein the synchronous condition is specifically as follows: judging whether the sending times are equal to the receiving times, if so, completely synchronizing the synchronizing conditions of the preset collector, and executing S3;
in an alternative implementation manner, whether the receiving frequency is the same as the preset frequency is judged, if yes, the synchronization condition of the preset collector is complete synchronization, and S3 is executed;
referring to fig. 3, in order to emit three distortion current signals at 30ms, 50ms and 70ms in a period of 100ms (milliseconds), the preset frequency is that the distortion current signals are emitted at 30ms, 50ms and 70ms in every 100 ms; FIG. 4 is a distortion current signal received by a fully synchronized preset collector, and it can be seen that feedback signals sent after the distortion current signal is received by the preset collector are 30ms, 50ms and 70ms within a period of 100 ms; fig. 5 shows a distorted current signal received by a preset collector with a delayed clock, and it can be seen that feedback signals sent by the preset collector after receiving the distorted current signal are 70ms and 90ms received in a period of 100ms, so that a time delay between the preset collector and the clock of the collection concentrator can be judged; FIG. 6 is a signal received by a preset collector with completely unsynchronized clocks, wherein it can be seen that no distorted current signal is received; because the transmission time of the distortion current is very short, the error between the receiving end and the transmitting end in the region of 1000 meters can be smaller than 1us (nanosecond), namely the receiving end can be regarded as sending the distortion current, and simultaneously, if the clocks of the receiving end and the transmitting end are synchronous, the receiving channel is synchronously opened, and meanwhile, the distortion current is received;
s3, sending a data collection starting signal.
Referring to fig. 3 to 6, a second embodiment of the present invention is as follows:
an ad hoc network communication method, which is different from the first embodiment in that,
the preset collector includes a plurality of preset collectors, and in an alternative embodiment, a preset collector can be used as a collection concentrator;
s1 further comprises the following steps: sending a wake-up signal, wherein the wake-up signal is encrypted transmission, and in an alternative embodiment, the preset collector and the collection concentrator are connected with each other through an LPWAN (Low Power Wide Area Network, low-power consumption wide area network) network; the preset collector wakes up according to the self clock and receives the distortion current according to the time node in the wake-up signal;
the wake-up signal comprises a mark corresponding to a preset collector and a time node, the preset collector judges that the mark corresponding to the self mark exists, if yes, the corresponding time node is stored, and wake-up action is carried out on the time node;
the step S2 comprises the following steps:
if the synchronization condition of the preset collector is complete synchronization, marking the preset collector as a target preset collector;
if the synchronization condition of the preset collectors is asynchronous, marking the preset collectors as preset collectors to be detected, and sending the positions of the preset collectors to be detected;
in an alternative embodiment, the feedback signal includes an identifier corresponding to a preset collector, and the target identifier corresponding to a target preset collector and the identifier corresponding to a preset collector to be detected, where the synchronization condition is completely synchronized, are stored; searching the position of a preset collector to be detected according to the mark to be detected and sending the position;
the step S3 comprises the following steps:
and sending a data collection starting signal to the target preset collector according to the target identifier.
Referring to fig. 2, a third embodiment of the present invention is as follows:
an ad hoc network communication terminal 1 comprising a processor 2, a memory 3 and a computer program stored on the memory 3 and executable on the processor 2, the processor 2 implementing the steps of either embodiment one or embodiment two when executing the computer program.
In summary, the invention provides an ad hoc network communication method and terminal, which detect clock synchronization in a network by using a distorted current signal before performing formal data interaction, and the acquisition concentrator generates the distorted current according to a preset frequency and acquires a feedback signal of the preset collector about the distorted current signal, wherein the feedback signal comprises a frequency for receiving the distorted current, and if the frequency is the same as the preset frequency, the clock synchronization of the preset collector and the acquisition concentrator is indicated, and the feedback signal can be received while trial transmission is performed due to small time difference of the distorted current; if a plurality of preset collectors are arranged, the clock synchronization requirements can be met as long as the preset collectors are respectively synchronous with the clocks of the collecting concentrators; and a wake-up signal is also set, wherein the wake-up signal comprises a wake-up time point, and each preset collector synchronously determines wake-up time through own clock, so that if the wake-up time is not synchronous with the clock of the collection concentrator, a distortion current signal cannot be correctly received, a data collection request is sent to the preset collector meeting clock synchronization, and the accuracy of collected data is ensured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (8)
1. An ad hoc network communication method, comprising the steps of:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal;
the detection signal comprises a distortion current signal;
the S1 specifically comprises the following steps:
transmitting the distortion current signal according to a preset frequency, and recording the transmission times of the distortion current signal;
receiving feedback signals of the preset collector about the distortion current signals, wherein the feedback signals comprise the receiving times of the distortion current signals;
the step S2 is specifically as follows:
and judging whether the sending times are equal to the receiving times, if so, the synchronization condition of the preset collector is completely synchronous.
2. The method of claim 1, wherein the preset collector comprises a plurality of collectors;
the S2 includes:
if the synchronization condition of the preset collector is complete synchronization, marking the preset collector as a target preset collector;
the step S3 comprises the following steps:
and sending a data collection starting signal to the target preset collector.
3. The method for ad hoc network communication according to claim 2, wherein said S2 comprises:
if the synchronization condition of the preset collector is asynchronous, marking the preset collector as the preset collector to be detected;
and sending the position of the preset collector to be detected.
4. The method for ad hoc network communication according to claim 1, wherein before S1, further comprises:
and sending a wake-up signal to a preset collector, wherein the wake-up signal is an encryption signal.
5. An ad hoc network communication terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the following steps when executing the computer program:
s1, generating a detection signal and receiving a feedback signal of a preset collector about the detection signal;
s2, determining the synchronous condition of the preset collector according to the feedback signal, and executing S3 if the synchronous condition is completely synchronous;
s3, sending a data collection starting signal;
the detection signal comprises a distortion current signal;
the S1 specifically comprises the following steps:
transmitting the distortion current signal according to a preset frequency, and recording the transmission times of the distortion current signal;
receiving feedback signals of the preset collector about the distortion current signals, wherein the feedback signals comprise the receiving times of the distortion current signals;
the step S2 is specifically as follows:
and judging whether the sending times are equal to the receiving times, if so, the synchronization condition of the preset collector is completely synchronous.
6. The ad hoc network communication terminal according to claim 5, wherein said preset collector comprises a plurality of;
the S2 includes:
if the synchronization condition of the preset collector is synchronous, marking the preset collector as a target preset collector;
the step S3 comprises the following steps:
and sending a data collection starting signal to the target preset collector.
7. An ad hoc network communication terminal according to claim 6, wherein said S2 comprises:
if the synchronization condition of the preset collector is asynchronous, marking the preset collector as the preset collector to be detected;
and sending the position of the preset collector to be detected.
8. The ad hoc network communication terminal according to claim 5, wherein S1 further comprises before:
and sending a wake-up signal to a preset collector, wherein the wake-up signal is an encryption signal.
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| CN108601559B (en) * | 2016-12-23 | 2021-01-29 | 华为技术有限公司 | Data synchronization method and device and terminal equipment |
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