CN112788719A - High-low speed network cooperative transmission system and method - Google Patents
High-low speed network cooperative transmission system and method Download PDFInfo
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- CN112788719A CN112788719A CN202011575894.9A CN202011575894A CN112788719A CN 112788719 A CN112788719 A CN 112788719A CN 202011575894 A CN202011575894 A CN 202011575894A CN 112788719 A CN112788719 A CN 112788719A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/46—TPC being performed in particular situations in multi hop networks, e.g. wireless relay networks
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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
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Abstract
The invention discloses a high-low speed network cooperative transmission system and a method, which comprises a power control module based on narrow-band radio frequency communication, wherein the power control module comprises a storage battery, a solar panel and a control module, all network equipment in a link is awakened according to radio frequency signals in the hypertext data transmission process, the data transmission is directly completed through low-speed radio frequency signals in the text data transmission process, and data transmission is completed through unmanned aerial vehicles to replace nodes or directly recover when part of nodes are abnormal, so that the outdoor high-speed network networking with low energy consumption, simple structure, low cost and strong stability is realized, and the recovery of outdoor security monitoring video data and terminal equipment state information is realized.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a high-low speed network cooperative transmission system and method for security monitoring in a field environment
Background
The field security monitoring is widely applied to the fields of forest fire prevention, wild animal research and environmental protection, is different from a security monitoring network in a city, is rarely found in a field security monitoring deployment area, is low in development degree, does not usually establish a wireless network base station by an operator, is complex in part of areas in terrain, and is extremely high in network construction cost; on the other hand, the field deployment security monitoring and communication network facilities thereof rely on electric energy to work, however, the field environment is rarely provided with a power grid, and the equipment faces the problem of difficult power supply.
Through Wi-Fi basic station and bridge relay station, can realize long-range wireless data transmission, avoid laying the cable, can reduce the goods and materials and the cost of labor of the cloth net by a wide margin, realize the high-speed transmission of data, nevertheless terminal security protection equipment and the Wi-Fi basic station of laying in addition, the bridge still has the power supply difficulty problem. Through arranging large-scale battery and introducing photovoltaic power generation technology, can supply power to equipment, practiced thrift the required facility of access electric wire netting and installation cost, however battery and solar panel are bulky, carry inconveniently, and solar energy power generation mode receives the weather change influence to enlarge, and uncontrollable factors such as weather can show influence network stability. Therefore, it is necessary to reduce the average power of the devices in the security monitoring system to reduce the requirement on the capacity of the battery, the requirement on the power generation power, and the volume and weight of the battery and the solar panel.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-low speed network cooperative transmission system and a method, which solve the defects in the prior art.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a high-low speed network cooperative transmission system comprises: the system comprises a server, a relay station, a base station, a power supply control module and terminal equipment; the server, the relay station, the base station and the terminal equipment are connected in sequence through broadband radio frequency signals to form a Wi-Fi network communication link, wherein the relay station can be only one stage or multiple stages, a power supply control module based on narrow-band radio frequency communication is installed on the relay station and the base station and supplies power to the relay station and the base station, and the server, the control module and the terminal equipment are connected in pairs in a coverage range based on the narrow-band radio frequency signals or forwarded to equipment outside the coverage range through the relay station to form a low-speed radio frequency network link;
furthermore, a link formed by the narrow-band radio frequency signal is continuously available and used for transmitting text data with relatively small data volume, the broadband radio frequency link based on the Wi-Fi network is intermittently opened, the link is started only when the data volume is required to be transmitted and the narrow-band radio frequency signal cannot meet the hypertext data of the communication speed, and after the transmission is finished, the relay station and the base station on the link should stop working immediately;
further, the power supply control module comprises a storage battery, a solar panel and a control module;
the solar panel is used for converting light energy into electric energy, the installed power of the solar panel is larger than the average power of load equipment of the power supply control module, different types of silicon panels are selected according to the arrangement environment climate, the power generation efficiency of a unit area is improved, if the solar panel is suitable for being used in an area with sufficient facing and good illumination conditions, and an amorphous silicon panel is suitable for being used in an area with poor illumination conditions;
the storage battery is used for storing redundant electric quantity generated by the solar panel and supplying power to the load when the solar power generation power is lower than the current load power, the battery capacity can maintain the load equipment to work for a certain time, the time is not less than the local continuous rainy record, and the battery type can select the energy density as high as possible within the allowable range of cost so as to reduce the weight of the battery and reduce the installation cost;
the control module is used for controlling power supply to a load, and comprises a microcontroller, a radio frequency module and a switch module, wherein the microcontroller is used for receiving, transmitting and analyzing data from the radio frequency module and controlling the switch module to be turned off according to an instruction, the switch module is used for connecting and disconnecting the power supply control module and the load and adjusting the power supply state to the load, the radio frequency module is used for receiving a narrow-band radio frequency signal and converting the narrow-band radio frequency signal into a digital signal to be sent to the microcontroller or receiving the digital signal from the microcontroller and converting the digital signal into a radio frequency signal to be sent, the power supply control module is directly supplied with power by a storage battery, and the module keeps a working state no matter whether the;
the invention also discloses a high-low speed network cooperative transmission method, which comprises the following steps:
the server receives a request for accessing data of a certain terminal monitoring device and judges whether the data type of the request is text data or not;
if not, the narrow-band radio frequency network is used for transmission; if yes, using Wi-Fi network transmission;
for the situation of using a narrow-band radio frequency network for transmission, the server calculates a radio frequency transmission path and sends a test signal;
if the feedback is received, namely the transmission link is complete, transmitting the instruction to the terminal equipment through the narrow-band radio frequency network, receiving the instruction by the terminal equipment, acquiring and uploading information to the server, and finishing the data transmission;
if the feedback is not received, namely the transmission link is not complete, judging whether an alternative link exists;
if the alternative links exist, adjusting the links and resending the test signals;
if no alternative link exists, considering that the power control module for the relay basically cannot be powered off, judging that the radio frequency module fails, recording the failed node and reporting the node for repair;
for the case of using Wi-Fi network transmission, firstly calculating a path of Wi-Fi signal transmission;
sending narrow-band radio frequency signals with the content of being started to power supply control modules of all equipment on the link, wherein the power supply control modules which correctly receive the signals need to be connected with a load power supply circuit, and a relay bridge or a Wi-Fi base station of a load starts to work to form a communication link;
sending a test signal, and judging whether the Wi-Fi communication link is complete or not;
if a feedback signal is received, namely the Wi-Fi communication link is complete, starting a data recovery program, uploading information stored in the local or a current video stream by the terminal equipment until the server sends an end instruction, stopping uploading the video stream or other data by the terminal equipment, and simultaneously sending a narrow-band radio frequency signal with closed content to power supply control modules of all equipment on the link, wherein the power supply control module correctly receiving the signal needs to disconnect a load power supply circuit to save the electric quantity;
if the Wi-Fi communication link is not subjected to the feedback signal, namely the Wi-Fi communication link is not complete, judging whether a feasible link exists or not;
if yes, adjusting the link and retransmitting the test signal;
if not, a closing instruction is sent through the narrow-band radio frequency signal, all devices on the link are closed, the problem node is recorded and uploaded, and only the problem node is recorded and reported in consideration of the fact that a power supply control module of the node device possibly has the condition of insufficient power of a storage battery.
The invention also discloses a network reconstruction method when the individual node is abnormal, which comprises the following steps:
after the server sends the test signal, correct feedback is not received, and the node is presumed to be in fault;
the server calculates other transmission paths and tests the paths to judge whether the alternative links are feasible or not;
if the charging is feasible, the problem node network equipment is closed, the standby node network equipment is started, the possible power shortage of the problem node network equipment is temporarily estimated, and the problem node network equipment is charged within a given period of time;
if not, presuming the number of the node faults;
if the number of the fault nodes is small, the unmanned aerial vehicle is used for carrying networking equipment, flying to the fault nodes and temporarily replacing the nodes, forming a transmission link with other intact nodes to transmit data, temporarily presuming that the network equipment of the fault nodes is possibly lack of power, and setting a period of time for charging the network equipment;
if the number of the fault nodes is large, the unmanned aerial vehicle is used for carrying routing equipment and directly flying to target terminal equipment to be subjected to data recovery, the equipment is connected to the routing equipment, and meanwhile, the data stored on the terminal equipment are recovered, at the moment, a link from a terminal to a server is incomplete, the video stream of the terminal equipment cannot be uploaded in real time, the situation that the power of the network equipment of the fault node is possibly lost is still temporarily presumed, and the network equipment of the fault node is charged for a period of time;
after the given charging time is over, restarting the link for testing, and judging whether the link is smooth at the moment;
if yes, the node is recovered to work until the next failure occurs;
if not, the node is inferred to have a failure which cannot be recovered by self, and manual maintenance is recommended.
Compared with the prior art, the invention has the advantages that:
the power control module based on narrow-band radio frequency communication realizes the control of a communication equipment power supply and the control of terminal equipment, and the high-speed and low-speed network cooperative transmission method for the field environment reduces the power consumption of high-speed wireless network equipment, so that a smaller photovoltaic cell can maintain the power supply of a base station or a relay station for a long time, thereby avoiding the laying and maintenance of cables in a complex terrain environment, and increasing the robustness of a wireless transmission system by a network reconstruction method when individual nodes are abnormal. By the device and the two methods, the cost of laying the monitoring network in the field is reduced, and the workload of manual installation and maintenance is reduced.
Drawings
Fig. 1 is a high-low speed network cooperative transmission system according to an embodiment of the present invention;
FIG. 2 is a diagram of a power control module according to an embodiment of the present invention;
fig. 3 is a flowchart of a cooperative transmission method for high and low speed networks according to an embodiment of the present invention;
fig. 4 is a flowchart of a network reconfiguration method when an individual node is abnormal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings by way of examples.
As shown in fig. 1, the high-speed network link includes a server, a relay station, a base station, and a terminal device, the four are connected in sequence by a broadband radio frequency signal based on 2.4GHz, and satisfy an 802.11b/g/n protocol, that is, a Wi-Fi network communication link is formed, wherein the relay station may have only one stage or multiple stages, the power control module based on narrow-band radio frequency communication is installed on the relay station and the base station and supplies power to the relay station and the base station, and the server, the control module, and the terminal device may be connected in pairs within a coverage range based on narrow-band radio frequency signals. Or forwarding to equipment outside a coverage range through a relay according to needs to form a low-speed radio frequency network link, wherein the frequency of a narrow-band radio frequency signal is 170MHz, 230Mhz or 433Mhz according to needs, the selection is carried out according to the complexity of the terrain, a low-frequency wave band is selected for the complex terrain, a high-frequency wave band is selected for the open terrain, and the transmitting power is above 5 watts;
in the network topology structure, a link formed by narrow-band radio frequency signals is continuously available and used for transmitting text data with relatively small data volume, a broadband radio frequency link based on a Wi-Fi network is intermittently opened, the link is started only when the data volume is required to be transmitted to be large and the narrow-band radio frequency signals cannot meet the hypertext data of the communication speed, and after the transmission is finished, a relay station and a base station on the link should stop working immediately to save the electric quantity;
in addition, the narrow-band radio frequency signal transmits a control instruction from the server, and the power supply module based on narrow-band radio frequency communication controls the power supply and the power off of the relay station and the base station in the broadband radio frequency communication link based on Wi-Fi, so that the connection and disconnection of the broadband radio frequency link based on the Wi-Fi network are realized, the purpose of saving the electric quantity of the relay station and the base station is achieved, and a high-speed and low-speed network cooperative transmission method for field data acquisition is provided for realizing the control process.
As shown in fig. 2, a power control module based on narrow-band radio frequency communication includes a storage battery, a solar panel, and a control module.
The solar panel is used for converting light energy into electric energy, the installed power of the solar panel is larger than the average power of load equipment of the power supply control module, different types of silicon panels are selected according to the arrangement environment climate, the power generation efficiency of a unit area is improved, if the solar panel is used in an area with sufficient facing and good illumination conditions, a single crystal silicon panel is preferably used, and an amorphous silicon panel is used in an area with poor illumination conditions. Taking a metropolis climate condition as an example, under an installation condition without shielding, if uninterrupted standby is required to be maintained, two bridges form a relay station, a solar panel needs to provide charging power of more than 100w, and for a base station, a bridge and a high-power routing AP need to provide charging power of more than 100 w;
the storage battery is used for storing redundant electric quantity generated by the solar panel and supplying power to the load when the solar power generation power is lower than the current load power, the battery capacity can maintain the load equipment to work for a certain time, the time is not less than the local continuous rain record, and the battery type can select the energy density as high as possible within the allowable range of cost so as to reduce the weight of the battery and reduce the installation cost. Taking urban climate conditions as an example, in order to maintain power supply under the condition that charging cannot be performed for 14 days, a storage battery with 24V of voltage and 120Ah of capacity is required;
the control module is used for controlling power supply to a load, and comprises a microcontroller, a radio frequency module and a switch module, wherein the microcontroller is used for receiving, transmitting and analyzing data from the radio frequency module and controlling the switch module to be turned off according to instructions, the switch module comprises three groups including a power generation switch, a battery switch and a discharge switch, current can only flow from the power generation switch to the battery switch and can not flow from the battery switch to the discharge switch in a reverse direction, the three groups of switches are controlled by the MCU and are used for connecting and disconnecting the power supply control module and the load and adjusting the power supply state to the load, the radio frequency module is used for receiving a narrow-band radio frequency signal sent by a remote upper device and converting the narrow-band radio frequency signal into a digital signal to be sent to the microcontroller or receiving the digital signal from the microcontroller and converting the digital signal into the radio frequency signal to be sent, and, the modules are all kept in working state;
the three power supply states comprise a charging mode, a charging and discharging mode and a discharging mode, a power generation switch and a battery switch are turned on in a power generation mode, the charging mode is that the discharging switch is turned off, so that a solar panel and a storage battery are connected when the solar panel is in the charging state, the charging and discharging mode is turned on by three switches in the charging and discharging mode, the solar panel and load equipment are connected to supply power when the solar panel and the load equipment are under strong light, meanwhile, redundant electric quantity flows into the storage battery, the power generation switch is turned off in the discharging mode, the battery switch and the discharging switch are turned on, the load is connected with the storage battery under the weak light or no light.
As shown in fig. 3, it is a flowchart of a cooperative transmission method for high and low speed networks used for field data acquisition, and as shown in the figure, the cooperative transmission method for high and low speed networks includes the following steps:
s1: the server receives a request for accessing data of a certain terminal monitoring device and judges whether the data type of the request is text data or not;
if not, using the narrow-band radio frequency network for transmission, and jumping to S3;
if yes, using Wi-Fi-based broadband network transmission, and jumping to S7;
s3: for the situation of using a narrow-band radio frequency network for transmission, the server calculates a radio frequency transmission path and sends a test signal;
if the feedback is received, that is, the transmission link is complete, the process goes to S4;
if the feedback is not received, namely the transmission link is not complete, judging whether an alternative link exists;
if the alternative link exists, jumping to S3;
if there is no alternative link, go to S6;
s4: transmitting the instruction to the terminal equipment through the narrow-band radio frequency network, and receiving the instruction by the terminal equipment;
s5: acquiring and uploading information to a server, receiving the text data by the server, sending a confirmation signal as feedback after confirming that the text data is successfully received, and finishing the data transmission;
s6: judging to obtain a conclusion that no feasible link exists, considering that the power control module for the relay basically cannot be powered off, judging that the radio frequency module fails, recording the failed node and reporting and repairing;
s7: firstly, calculating a Wi-Fi signal transmission path, sending a narrow-band radio frequency signal with the content of being started to power control modules of all equipment on a link, connecting a load power supply circuit by the power control module correctly receiving the signal at the moment, starting working by a relay bridge or a Wi-Fi base station of a load to form a communication link, sending a test signal, and judging whether the Wi-Fi communication link is complete:
if the feedback signal is received, namely the link is complete, jumping to S8;
if the feedback signal is received, namely the link is incomplete, whether a feasible Wi-Fi link exists is judged:
if the link is feasible, jumping to S7;
if no feasible link exists, jumping to S10;
s8: starting a data recovery program, uploading information stored in the local or a current video stream by the terminal equipment until the server sends an end instruction, stopping uploading the video stream or other data by the terminal equipment, and simultaneously sending a narrow-band radio frequency signal with closed content to power supply control modules of all equipment on the link, wherein the power supply control module correctly receiving the signal needs to disconnect a load power supply circuit to save the electric quantity;
s10: and sending a closing instruction through a narrow-band radio frequency signal, closing all equipment on a link, recording and uploading the problem nodes, and only recording and reporting the problem nodes in consideration of the condition that a power supply control module of the node equipment has insufficient power of a storage battery.
Considering that the installation is difficult due to the fact that the storage battery is selected too large, power failure is likely to happen, the integrity of a communication link is affected, and data cannot be transmitted temporarily, a network reconfiguration method for the abnormal individual node is provided.
Fig. 4 is a flowchart of a network reconfiguration method when an individual node is abnormal, and as shown in the figure, the network reconfiguration method when the individual node is abnormal includes the following steps:
s1: the system normally works until the server does not receive correct feedback after sending the test signal, the supposition node fails, the server calculates other transmission paths and tests, and whether the alternative link is feasible or not is judged;
if the alternative path is available, the step goes to S2;
if not, presuming the number of the node faults:
if the number of faults is less, jumping to S5;
if the number of faults is large, jumping to S6;
s2: closing the problem node network equipment, starting the standby node network equipment, temporarily presuming that the problem node network equipment is possible to be lack of power, setting a period of time for charging the problem node network equipment, testing after a period of time, and entering S3
S3: after the given charging time is over, restarting the link for testing, and judging whether the link can also recover the work:
if the work can be recovered, jumping to S4;
if the operation can not be recovered, the operation goes to S5;
s4: the node has a failure which cannot be recovered automatically, and the node is submitted to manual maintenance;
s5: restoring the node to work, recalculating the optimal transmission path, and jumping to S1;
s6: the number of the fault nodes is small, the unmanned aerial vehicle is used for carrying networking equipment, flying to the fault nodes and temporarily replacing the fault nodes, the fault nodes and other intact nodes form a transmission link for transmitting data, the possible power shortage of the network equipment of the fault nodes is temporarily estimated, the network equipment is charged for a given period of time, and the S3 is skipped;
s7: the number of fault nodes is large, an unmanned aerial vehicle carrying the routing equipment is used for directly flying to target terminal equipment to be recovered, the equipment is connected to the routing equipment, and meanwhile, data stored on the terminal equipment are recovered, at the moment, a link from a terminal to a server is incomplete, a video stream of the terminal equipment cannot be uploaded in real time, the situation that the power of the network equipment of the problem node is possibly lost is still temporarily presumed, the network equipment is charged for a period of time, and S3 is skipped;
it will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner in which the invention is practiced, and it is to be understood that the scope of the invention is not limited to such specifically recited statements and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (5)
1. A high-low speed network cooperative transmission system, comprising: the system comprises a server, a relay station, a base station, a power supply control module and terminal equipment; the server, the relay station, the base station and the terminal equipment are connected in sequence through broadband radio frequency signals to form a Wi-Fi network communication link, wherein the relay station can be only one stage or multiple stages, the power supply control module based on narrow-band radio frequency communication is installed on the relay station and the base station and supplies power to the relay station and the base station, and the server, the control module and the terminal equipment are connected in pairs in a coverage range based on the narrow-band radio frequency signals or forwarded to equipment outside the coverage range through the relay station to form a low-speed radio frequency network link.
2. A high-low speed network cooperative transmission system according to claim 1, wherein: a link formed by narrow-band radio frequency signals exists continuously and is used for transmitting text data with relatively small data volume, a broadband radio frequency link based on a Wi-Fi network is opened intermittently, the link is started only when the data volume is required to be transmitted and the narrow-band radio frequency signals cannot meet the hypertext data at the communication speed, and after the transmission is finished, a relay station and a base station on the link stop working immediately.
3. A high-low speed network cooperative transmission system according to claim 2, wherein: the power supply control module comprises a storage battery, a solar panel and a control module;
the solar panel is used for converting light energy into electric energy, the installed power of the solar panel is larger than the average power of load equipment of the power supply control module, and different types of silicon panels are selected according to the arrangement environment climate, so that the generating efficiency of unit area is improved;
the storage battery is used for storing redundant electric quantity generated by the solar panel and supplying power to the load when the solar power generation power is lower than the current load power consumption, and the battery capacity can maintain the load equipment to work for a certain time which is not less than the local continuous rainy record;
the control module is used for controlling power supply to a load, and comprises a microcontroller, a radio frequency module and a switch module, wherein the microcontroller is used for receiving, transmitting and analyzing data from the radio frequency module and controlling the switch module to be turned off according to an instruction, the switch module is used for connecting and disconnecting the power supply control module and the load and adjusting the power supply state to the load, the radio frequency module is used for receiving a narrow-band radio frequency signal and converting the narrow-band radio frequency signal into a digital signal to be sent to the microcontroller or receiving the digital signal from the microcontroller and converting the digital signal into a radio frequency signal to be sent, the power supply control module is directly supplied with power by a storage battery, and the module keeps a working state no matter whether the.
4. The transmission method of the cooperative transmission system of high and low speed network according to claim 3, comprising the steps of:
the server receives a request for accessing data of a certain terminal monitoring device and judges whether the data type of the request is text data or not;
if not, the narrow-band radio frequency network is used for transmission; if yes, using Wi-Fi network transmission;
for the situation of using a narrow-band radio frequency network for transmission, the server calculates a radio frequency transmission path and sends a test signal;
if the feedback is received, namely the transmission link is complete, transmitting the instruction to the terminal equipment through the narrow-band radio frequency network, receiving the instruction by the terminal equipment, acquiring and uploading information to the server, and finishing the data transmission;
if the feedback is not received, namely the transmission link is not complete, judging whether an alternative link exists;
if the alternative links exist, adjusting the links and resending the test signals;
if no alternative link exists, considering that the power control module for the relay basically cannot be powered off, judging that the radio frequency module fails, recording the failed node and reporting the node for repair;
for the case of using Wi-Fi network transmission, firstly calculating a path of Wi-Fi signal transmission;
sending narrow-band radio frequency signals with the content of being started to power supply control modules of all equipment on the link, wherein the power supply control modules which correctly receive the signals need to be connected with a load power supply circuit, and a relay bridge or a Wi-Fi base station of a load starts to work to form a communication link;
sending a test signal, and judging whether the Wi-Fi communication link is complete or not;
if a feedback signal is received, namely the Wi-Fi communication link is complete, starting a data recovery program, uploading information stored in the local or a current video stream by the terminal equipment until the server sends an end instruction, stopping uploading the video stream or other data by the terminal equipment, and simultaneously sending a narrow-band radio frequency signal with closed content to power supply control modules of all equipment on the link, wherein the power supply control module correctly receiving the signal needs to disconnect a load power supply circuit to save the electric quantity;
if the Wi-Fi communication link is not subjected to the feedback signal, namely the Wi-Fi communication link is not complete, judging whether a feasible link exists or not;
if yes, adjusting the link and retransmitting the test signal;
if not, a closing instruction is sent through the narrow-band radio frequency signal, all devices on the link are closed, the problem node is recorded and uploaded, and only the problem node is recorded and reported in consideration of the fact that a power supply control module of the node device possibly has the condition of insufficient power of a storage battery.
5. The network reconfiguration method for high and low speed network cooperative transmission system according to claim 3, comprising the steps of:
after the server sends the test signal, correct feedback is not received, and the node is presumed to be in fault;
the server calculates other transmission paths and tests the paths to judge whether the alternative links are feasible or not;
if the charging is feasible, the problem node network equipment is closed, the standby node network equipment is started, the possible power shortage of the problem node network equipment is temporarily estimated, and the problem node network equipment is charged within a given period of time;
if not, presuming the number of the node faults;
if the number of the fault nodes is small, the unmanned aerial vehicle is used for carrying networking equipment, flying to the fault nodes and temporarily replacing the nodes, forming a transmission link with other intact nodes to transmit data, temporarily presuming that the network equipment of the fault nodes is possibly lack of power, and setting a period of time for charging the network equipment;
if the number of the fault nodes is large, the unmanned aerial vehicle is used for carrying routing equipment and directly flying to target terminal equipment to be subjected to data recovery, the equipment is connected to the routing equipment, and meanwhile, the data stored on the terminal equipment are recovered, at the moment, a link from the terminal equipment to a server is incomplete, the video stream of the terminal equipment cannot be uploaded in real time, and the situation that the power of the network equipment of the fault node is possibly lost is still temporarily presumed, and the network equipment is subjected to charging for a period of time;
after the given charging time is over, restarting the link for testing, and judging whether the link is smooth at the moment;
if yes, the node is recovered to work until the next failure occurs;
if not, the node is inferred to have a failure which cannot be recovered by self, and manual maintenance is recommended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575894.9A CN112788719B (en) | 2020-12-28 | 2020-12-28 | High-low speed network cooperative transmission system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575894.9A CN112788719B (en) | 2020-12-28 | 2020-12-28 | High-low speed network cooperative transmission system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112788719A true CN112788719A (en) | 2021-05-11 |
| CN112788719B CN112788719B (en) | 2021-12-21 |
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