CN112637949A - Networking and positioning method and system for short-wave emergency communication - Google Patents
Networking and positioning method and system for short-wave emergency communication Download PDFInfo
- Publication number
- CN112637949A CN112637949A CN202011501085.3A CN202011501085A CN112637949A CN 112637949 A CN112637949 A CN 112637949A CN 202011501085 A CN202011501085 A CN 202011501085A CN 112637949 A CN112637949 A CN 112637949A
- Authority
- CN
- China
- Prior art keywords
- short
- wave
- center
- remote station
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000006855 networking Effects 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 7
- 230000011664 signaling Effects 0.000 claims description 30
- 230000001360 synchronised effect Effects 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000005562 fading Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a networking and positioning system and a method for short-wave emergency communication, which comprises the following steps: deploying 1 superior center and M regional centers, and configuring a short-wave emergency communication network; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot; in the same time interval, the channel frequency of the calling channel table of the remote station comprises the accessible frequency between the remote station and the center of the main area and the center of the spare area, and the calling channel table in different time intervals is set; if the short wave center controller monitors that a main link between a remote station and a main area center is normal, the remote station and the main area center adopt the main link to carry out service transmission; the short wave remote controller of the remote station accessed to the short wave network sends service through the short wave transceiver, and the corresponding short wave receiver receives the service and returns the service; and selecting a spare area center, and establishing a data return channel between the main area center and the spare area center through an optical fiber or a broadband link such as satellite communication, so as to realize the distribution and data return of idle receivers in the spare area center. The invention improves the resource utilization rate of the whole network receiver and can effectively position the short wave terminal which sends out the emergency alarm in time.
Description
Technical Field
The invention belongs to the technical field of communication signal processing, and particularly relates to a networking and positioning method and system for short-wave emergency communication.
Background
Short wave communication is always a necessary communication mode for high altitude and at sea because of the characteristics of simple equipment, flexible communication mode and long communication distance. For areas with dense ships, such as a fishing ground, communication equipment, such as a shipborne radio station, and the like, form an organic large-scale short-wave communication network, so that not only can the mutual interference among users be reduced, but also the communication efficiency can be improved, and various risks can be reduced.
The short wave channel has a series of complex phenomena such as multipath time delay, fading, Doppler shift, radio station interference and the like, and is a channel with severe conditions. Orthogonal frequency division multiplexing OFDM is a special multi-carrier transmission mode, which carries out parallel transmission on a series of orthogonal sub-carriers after high-speed data is subjected to serial-parallel conversion, reduces the information rate on a sub-channel and increases the continuous length of data symbols on each sub-carrier. Meanwhile, OFDM converts frequency selective fading channels into a series of narrow-band flat fading channels, thereby having good noise resistance and multipath interference resistance. Compared with a conventional frequency division multiplexing system, OFDM can maximally utilize frequency spectrum resources. Orthogonal frequency division multiplexing access OFDMA is an access technology based on OFDM, and realizes multiple access by a method of allocating independent subcarriers and time slots for users. For short-wave channels with limited bandwidth, the OFDM/OFDMA technology has important significance for improving the anti-interference performance of the system.
With the expansion of the coverage area of broadband communication networks such as terrestrial fiber, satellite, microwave and the like, the use of short-wave communication networks as main communication networks is decreasing, but for important service systems, while considering conventional communication networks, it is necessary to consider a set of emergency communication networks as a communication means for degraded service transmission when the primary link fails. Based on the characteristics of the short-wave communication network, the short-wave communication network is used as a networking method of the emergency communication network, and the advantages of strong survivability and economic cost can be obtained.
According to whether the short wave communication network has a uniform time reference, the method can be an asynchronous networking transmission mode and a synchronous networking transmission mode. Asynchronous networking (usually adopting competition or polling) is a relatively short-wave synchronous networking mode, which has the obvious advantages of high networking speed, flexible networking, low requirement on timing precision and the like, but also brings the disadvantages of low bandwidth utilization rate and centralized timing control, particularly because of the channel characteristics of a short-wave communication network, the accessible frequencies between remote stations at distributed positions and interconnected data centers are not consistent, and the competition or polling asynchronous networking mode is not suitable for the networking of the short-wave communication network.
Meanwhile, by using a Global Positioning System (GPS), the shipborne satellite positioning receiver can obtain positioning information containing parameters such as the current time, the longitude and latitude, the speed and the like of the ship. And by combining a Geographic Information System (GIS), the positioning information plays a certain navigation role in the running of the ship. In order to ensure that the ship giving the alarm is rescued in time, the ship giving the emergency distress signal to the management department must ensure the rapid transmission and timely processing of the information. Meanwhile, if the terminal can automatically report the current positioning information of the ship while sending out the alarm signal, the method has very important significance for alarm processing. The ship position monitoring service system used in China mainly comprises an international maritime satellite system, an ARGOS system and a Beidou system. Although international maritime satellite systems and the like have the characteristics of basically no blind area, large coverage range and the like, satellite communication has the defects of high cost, large equipment and the like, is not popularized enough in small ships, and short-wave radio stations are still adopted for communication in ships. The short-wave safety communication network for fishery in the national marine fishery safety production network established by the agricultural department makes full use of a large number of short-wave radio stations to carry out fishery safety management.
The demand characteristics of the short-wave emergency communication network and the transmission characteristics of the short-wave communication network need to provide a short-wave network configuration scheme, so that multiple short-wave radio stations share the same antenna, and the co-location interference of multiple antennas is avoided; and multi-user distributed emergency communication networking is realized through a distributed shared access and synchronous networking method of the whole short-wave radio network. In consideration of the specific characteristics of short-wave communication and offshore production activities, the problem of how to ensure that the emergency alarm information sent by the terminal is effectively transmitted to the control center in a high-priority manner in a conventional positioning system for timing query under a short-wave frequency point is not solved; meanwhile, how to issue an alarm such as typhoon and the like sent by the control center to the ship in time through a conventional positioning system is also a problem to be solved.
Disclosure of Invention
Based on this, the technical problem to be solved by the invention is to provide a networking and positioning method and system suitable for short-wave emergency communication aiming at the defects of the prior art.
The purpose of the invention is realized by the following technical scheme:
a networking and positioning method for short-wave emergency communication comprises the following steps:
a network configuration step, wherein 1 superior center and M regional centers are deployed, N remote stations are deployed in the M regions, the superior control center is interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and the sensor stations are configured with a main link and a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller;
a time slot access positioning step, which is to divide the time in the network into time slots by using a GPS time signal as a network time synchronization signal; the equipment in the network is accessed to a channel between a control center consisting of a frequency point and the equipment according to a time slot; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot;
planning a calling channel table, namely setting the calling channel table in different time periods, wherein the channel frequency of the calling channel table of the remote station in the same time period comprises the accessible frequency between the remote station and the center of the main area and the center of the spare area;
a synchronous networking control step, when a main link between a remote station and a regional center is unblocked, the remote station is set to be in a channel scanning state, a short-wave central controller and a short-wave remote controller monitor the state of the main link, and if the short-wave central controller monitors that the main link between the remote station and the main regional center is normal, the main link is adopted between the remote station and the main regional center for service transmission;
a synchronous networking transmission step, namely, a short-wave remote controller of a remote station accessed to a short-wave network sends a service through a short-wave transceiver, and a corresponding short-wave receiver receives the service and returns the service;
and a region center scheduling step, namely establishing a return link, sequentially inquiring the idle condition of the short-wave receiver of the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main region center and the backup region center through broadband links such as optical fibers or satellite communication, so as to realize the coordination of the idle receiver distribution and data return of the backup region center.
Further, wherein, when the short wave terminal needs to send the alarm signal, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
Further, the short wave terminal alert signaling request is transmitted on the control signaling subchannel starting from the start position of the next time slot.
Wherein, when the short wave terminal needs to report the positioning information, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center is detected to send a signal allowing the short wave terminal to continue positioning report, the number of delay time slots for positioning report is calculated, the time for the short wave terminal to start reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
A networking and positioning system for short-wave emergency communication comprises the following modules:
the system comprises a configuration network module, a sensor site and a data center, wherein the configuration network module is used for deploying 1 superior center and M regional centers, the M regions are commonly deployed with N remote stations, the superior control center is interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and the sensor site are configured with a main link and are also configured with a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller;
the time slot access positioning module is used for dividing the time in the network into time slots by using a GPS time signal as a network time synchronization signal; the equipment in the network is accessed to a channel between a control center consisting of a frequency point and the equipment according to a time slot; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot;
a planning calling channel table module, which is used for setting the calling channel table of different time intervals when the channel frequency of the calling channel table of the remote station in the same time interval comprises the accessible frequency between the remote station and the center of the main area and the center of the standby area;
the synchronous networking control module is used for setting the remote station in a channel scanning state when a main link between the remote station and the regional center is unblocked, monitoring the state of the main link by the short-wave central controller and the short-wave remote controller, and if the short-wave central controller monitors that the main link between the remote station and the main regional center is normal, performing service transmission by using the main link between the remote station and the main regional center;
the synchronous networking transmission module is used for transmitting a service through a short-wave transceiver in a short-wave remote controller of a remote station which is accessed to a short-wave network, and a corresponding short-wave receiver receives the service and returns the service;
and the region center scheduling module is used for establishing a return link, sequentially inquiring the idle condition of the short-wave receiver in the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main and backup region centers through the broadband links such as optical fibers or satellite communication, so as to coordinate the allocation and data return of the idle receiver in the backup region center.
Further, wherein, when the short wave terminal needs to send the alarm signal, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
Further, the short wave terminal alert signaling request is transmitted on the control signaling subchannel starting from the start position of the next time slot.
Wherein, when the short wave terminal needs to report the positioning information, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center is detected to send a signal allowing the short wave terminal to continue positioning report, the number of delay time slots for positioning report is calculated, the time for the short wave terminal to start reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
Due to the adoption of the technical scheme, the invention can achieve the following beneficial effects:
the invention realizes the distributed shared access of the multiple remote stations to the multiple centers by the central configuration of the main and standby areas and the establishment of the return link, thereby improving the resource utilization rate of the receiver of the whole network. An efficient large-scale short-wave communication network positioning monitoring system is established, so that the system under a short-wave frequency point has a conventional positioning function and can timely and effectively position a short-wave terminal which sends out an emergency alarm.
Drawings
FIG. 1 is a flow chart of a method for networking and locating short wave emergency communications that includes an embodiment of the present invention;
figure 2 is a block diagram of a short wave emergency communications networking and positioning system incorporating an embodiment of the invention.
These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In one embodiment, as shown in fig. 1, there is provided a method for networking and positioning short-wave emergency communication, including the following steps:
a network configuration step, wherein 1 superior center and M regional centers are deployed, N remote stations are deployed in the M regions, the superior control center is interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and the sensor stations are configured with a main link and a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller; the short wave center controller is configured at the center of each area, the short wave center controller is connected with 1 short wave transceiver and K short wave receivers, the short wave transceiver and the K short wave receivers share one short wave omnidirectional antenna through a radio frequency sharing device, 1 short wave remote controller is deployed at each sensor site, and each short wave remote controller is connected with 1 short wave transceiver.
A time slot access positioning step, which is to divide the time in the network into time slots by using a GPS time signal as a network time synchronization signal; the equipment in the network is accessed to a channel between a control center consisting of a frequency point and the equipment according to a time slot; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot; the short wave central controller or the short wave remote controller is provided with a unified clock source, and all short wave radio stations respond to the same synchronous signal in the network building and service transmission processes; the whole network synchronization period is T and comprises T1 and T2 time slots, T1 is a downlink service transmission time slot and a networking control time slot, and T2 is an uplink service transmission time slot. All the main area centers and the standby area centers maintain 1 home relation table of the whole network in a short wave center controller, all the area centers and the remote stations adopt unified sequential addressing, each center only configures 1 address for the short wave transceiver, the receiver can not configure the address, and the distributed sharing of the short wave receiver of the whole network center can be met under the condition that a calling channel table covers the remote station and the main and standby area centers by configuring the main and standby area centers.
Planning a calling channel table, namely setting the calling channel table in different time periods, wherein the channel frequency of the calling channel table of the remote station in the same time period comprises the accessible frequency between the remote station and the center of the main area and the center of the spare area; according to the characteristic of the accessible frequency variation of the short wave channel, 24 hours a day is divided into a plurality of time periods, for example, one hour is a period. The short wave remote controller and the short wave central controller store all call channel tables of subordinate remote stations and control the local short wave transceiver to switch and scan the call channel tables or select the corresponding call channel tables to initiate a single call chain establishment.
A synchronous networking control step, namely setting a remote station in a channel scanning state, monitoring a main link state by a short-wave central controller and a short-wave remote controller, and if the short-wave central controller monitors that a main link between the remote station and a main area center is normal, adopting the main link to carry out service transmission between the remote station and the main area center;
a synchronous networking transmission step, namely, a short-wave remote controller of a remote station accessed to a short-wave network sends a service through a short-wave transceiver, and a corresponding short-wave receiver receives the service and returns the service;
in the synchronous networking control process, the short-wave emergency communication network is started by monitoring the fault of the main link through the regional center and initiating a single-call link establishment by adopting the regional center station, so that the rapid response of the short-wave emergency communication network and the dynamic sharing of multiple receivers as required are realized. And judging that the remote station is accessed to the local area center or the spare area center according to the idle state of the main area center receiver, and establishing a short wave receiver return link according to needs to realize the distributed access of the multiple remote stations to the multi-area center.
And a region center scheduling step, namely establishing a return link, sequentially inquiring the idle condition of the short-wave receiver of the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main region center and the backup region center through broadband links such as optical fibers or satellite communication, so as to realize the coordination of the idle receiver distribution and data return of the backup region center.
Further, wherein, when the short wave terminal needs to send the alarm signal, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
Further, the short wave terminal alert signaling request is transmitted on the control signaling subchannel starting from the start position of the next time slot.
Wherein, when the short wave terminal needs to report the positioning information, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center is detected to send a signal allowing the short wave terminal to continue positioning report, the number of delay time slots for positioning report is calculated, the time for the short wave terminal to start reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
In another embodiment, as shown in fig. 2, there is provided a short-wave emergency communication networking and positioning system, comprising the following modules:
the system comprises a configuration network module, a sensor site and a data center, wherein the configuration network module is used for deploying 1 superior center and M regional centers, the M regions are commonly deployed with N remote stations, the superior control center is interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and the sensor site are configured with a main link and are also configured with a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller; the short wave center controller is configured at the center of each area, the short wave center controller is connected with 1 short wave transceiver and K short wave receivers, the short wave transceiver and the K short wave receivers share one short wave omnidirectional antenna through a radio frequency sharing device, 1 short wave remote controller is deployed at each sensor site, and each short wave remote controller is connected with 1 short wave transceiver.
The time slot access positioning module is used for dividing the time in the network into time slots by using a GPS time signal as a network time synchronization signal; the equipment in the network is accessed to a channel between a control center consisting of a frequency point and the equipment according to a time slot; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot; all the main area centers and the standby area centers maintain 1 home relation table of the whole network in a short wave center controller, all the area centers and the remote stations adopt unified sequential addressing, each center only configures 1 address for the short wave transceiver, the receiver can not configure the address, and the distributed sharing of the short wave receiver of the whole network center can be met under the condition that a calling channel table covers the remote station and the main and standby area centers by configuring the main and standby area centers.
A planning calling channel table module, which is used for setting the calling channel table of different time intervals when the channel frequency of the calling channel table of the remote station in the same time interval comprises the accessible frequency between the remote station and the center of the main area and the center of the standby area; according to the characteristic of the accessible frequency variation of the short wave channel, 24 hours a day is divided into a plurality of time periods, for example, one hour is a period. The short wave remote controller and the short wave central controller store all call channel tables of subordinate remote stations and control the local short wave transceiver to switch and scan the call channel tables or select the corresponding call channel tables to initiate a single call chain establishment.
The synchronous networking control module is used for setting the remote station in a channel scanning state when a main link between the remote station and the regional center is unblocked, monitoring the state of the main link by the short-wave central controller and the short-wave remote controller, and if the short-wave central controller monitors that the main link between the remote station and the main regional center is normal, performing service transmission by using the main link between the remote station and the main regional center;
the synchronous networking transmission module is used for transmitting a service through a short-wave transceiver in a short-wave remote controller of a remote station which is accessed to a short-wave network, and a corresponding short-wave receiver receives the service and returns the service;
in the synchronous networking control process, the short-wave emergency communication network is started by monitoring the fault of the main link through the regional center and initiating a single-call link establishment by adopting the regional center station, so that the rapid response of the short-wave emergency communication network and the dynamic sharing of multiple receivers as required are realized. And judging that the remote station is accessed to the local area center or the spare area center according to the idle state of the receiver of the main area center, and establishing a different-place service return link according to needs to realize the distributed access of the multiple remote stations to the multiple area centers.
And the region center scheduling module is used for establishing a return link, sequentially inquiring the idle condition of the short-wave receiver in the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main and backup region centers through the broadband links such as optical fibers or satellite communication, so as to coordinate the allocation and data return of the idle receiver in the backup region center.
Further, wherein, when the short wave terminal needs to send the alarm signal, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
Further, the short wave terminal alert signaling request is transmitted on the control signaling subchannel starting from the start position of the next time slot.
Wherein, when the short wave terminal needs to report the positioning information, if satisfy simultaneously: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center is detected to send a signal allowing the short wave terminal to continue positioning report, the number of delay time slots for positioning report is calculated, the time for the short wave terminal to start reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
All of the above description is only an embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any changes or substitutions may be readily made by those skilled in the art. Therefore, the protection scope of the present invention should be defined by the claims.
Claims (8)
1. A networking and positioning method for short-wave emergency communication comprises the following steps:
the method comprises the steps of configuring a network, wherein 1 superior finger control center and M regional centers are deployed, N remote stations are deployed in the M regions, the superior finger control centers are interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and sensor stations are configured with a main link and a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller;
a time slot access positioning step, which is to use a GPS time signal as a network time synchronization signal to divide the time in the network into time slots, access the equipment in the network into a channel between a command center consisting of a frequency point and the equipment according to the time slots, access the short wave terminals into a control center channel according to the time slots after grouping the short wave terminals when the remote equipment reports the positioning information, and report the positioning information to the command center in the time slots;
planning a calling channel table, namely setting the calling channel table in different time periods, wherein the channel frequency of the calling channel table of the remote station in the same time period comprises the accessible frequency between the remote station and the center of the main area and the center of the spare area;
a synchronous networking control step, namely setting a remote station in a channel scanning state, monitoring a main link state by a short-wave central controller and a short-wave remote controller, and if the short-wave central controller monitors that a main link between the remote station and a main area center is normal, adopting the main link to carry out service transmission between the remote station and the main area center;
a synchronous networking transmission step, namely, a short-wave remote controller of a remote station accessed to a short-wave network sends a service through a short-wave transceiver, and a corresponding short-wave receiver receives the service and transmits the service back;
and a region center scheduling step, namely establishing a return link, sequentially inquiring the idle condition of the short-wave receiver of the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main region center and the backup region center through an optical fiber or a satellite communication broadband link to realize the coordination of the idle receiver distribution and the data return of the backup region center.
2. The method of claim 1, wherein, when the short wave terminal needs to send an alarm signal, if both: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
3. The method of claim 2, the short wave terminal alarm signaling request being transmitted on the control signaling subchannel starting from the start position of the next time slot.
4. The method of claim 1, wherein when the short wave terminal needs to report the positioning information, if both: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center sends a signaling allowing the short wave terminal to perform positioning report, the number of delay time slots of positioning report is calculated, the time of the short wave terminal for newly starting reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
5. A networking and positioning system for short-wave emergency communication comprises the following modules:
the system comprises a configuration network module, a sensor site and a data center, wherein the configuration network module is used for deploying 1 superior center and M regional centers, the M regions are commonly deployed with N remote stations, the superior control center is interconnected with the M regional centers and the M regional centers through a communication network, the regional centers and the sensor site are configured with a main link and are also configured with a short-wave emergency communication network, and the short-wave emergency communication network comprises a short-wave center controller and a short-wave remote controller;
the time slot access positioning module is used for dividing the time in the network into time slots by using a GPS time signal as a network time synchronization signal; the equipment in the network is accessed to a channel between a control center consisting of a frequency point and the equipment according to a time slot; when the short wave terminal reports the positioning information, the short wave terminals are grouped and then accessed to a control center channel according to a time slot, and the positioning information is reported to the control center in the time slot;
a planning calling channel table module, which is used for setting the calling channel table of different time intervals when the channel frequency of the calling channel table of the remote station in the same time interval comprises the accessible frequency between the remote station and the center of the main area and the center of the standby area;
the synchronous networking control module is used for setting the remote station in a channel scanning state when a main link between the remote station and the regional center is unblocked, monitoring the state of the main link by the short-wave central controller and the short-wave remote controller, and if the short-wave central controller monitors that the main link between the remote station and the main regional center is normal, performing service transmission by using the main link between the remote station and the main regional center;
the synchronous networking transmission module is used for transmitting a service through a short-wave transceiver in a short-wave remote controller of a remote station which is accessed to a short-wave network, and a corresponding short-wave receiver receives the service and returns the service;
and the region center scheduling module is used for establishing a return link, sequentially inquiring the idle condition of the short-wave receiver in the backup region center by the main region center according to the plan, selecting the backup region center, and establishing a data return channel between the main and backup region centers through the broadband links such as optical fibers or satellite communication, so as to coordinate the allocation and data return of the idle receiver in the backup region center.
6. The system of claim 5, wherein when the short wave terminal needs to send an alarm signal, if both: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) the alarm processing process of other short wave terminals in the current time period is finished; the short wave terminal sends a short wave terminal alarm signaling from the start position of the next time slot.
7. The method of claim 6, the short wave terminal report positioning request is sent on a control signaling subchannel starting from the start position of the next time slot.
8. The system of claim 5, wherein when the short wave terminal needs to report positioning information, if both: (1) the method comprises the steps that signals sent by a control center or other short-wave terminals on a control signaling subchannel are not detected in a current time slot; (2) when the alarm processing process of other short wave terminals in the current time period is finished, the short wave terminal sends a report positioning information request to the control center, after the control center is detected to send a signal allowing the short wave terminal to continue positioning report, the number of delay time slots for positioning report is calculated, the time for the short wave terminal to start reporting the positioning information is determined, and the positioning information is reported at the new positioning information reporting time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501085.3A CN112637949A (en) | 2020-12-17 | 2020-12-17 | Networking and positioning method and system for short-wave emergency communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501085.3A CN112637949A (en) | 2020-12-17 | 2020-12-17 | Networking and positioning method and system for short-wave emergency communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112637949A true CN112637949A (en) | 2021-04-09 |
Family
ID=75317047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011501085.3A Pending CN112637949A (en) | 2020-12-17 | 2020-12-17 | Networking and positioning method and system for short-wave emergency communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112637949A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350139A (en) * | 2008-09-02 | 2009-01-21 | 南京厚华通信设备有限责任公司 | Apparatus and method for monitoring location and emergency alarming of large-sized short-wave communication network marine vehicle |
| CN105391582A (en) * | 2015-11-27 | 2016-03-09 | 中国电子科技集团公司第二十八研究所 | Shared access system based on short-wave communication network |
| CN108882254A (en) * | 2018-08-01 | 2018-11-23 | 中国电子科技集团公司第二十八研究所 | A kind of multiuser distributed emergency synchronous network method based on short wave communication |
-
2020
- 2020-12-17 CN CN202011501085.3A patent/CN112637949A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350139A (en) * | 2008-09-02 | 2009-01-21 | 南京厚华通信设备有限责任公司 | Apparatus and method for monitoring location and emergency alarming of large-sized short-wave communication network marine vehicle |
| CN105391582A (en) * | 2015-11-27 | 2016-03-09 | 中国电子科技集团公司第二十八研究所 | Shared access system based on short-wave communication network |
| CN108882254A (en) * | 2018-08-01 | 2018-11-23 | 中国电子科技集团公司第二十八研究所 | A kind of multiuser distributed emergency synchronous network method based on short wave communication |
Non-Patent Citations (1)
| Title |
|---|
| 周晓云;: "船岸数字短波组网及应用研究", 中国无线电, no. 10 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12082264B2 (en) | Method and apparatus for control resource set configuration for 5G next radio system | |
| CN109997396B (en) | Wireless communication method and user equipment | |
| US11252712B2 (en) | Method and apparatus for control resource set configuration for common control | |
| CN111066370B (en) | Apparatus and method for configuring beam indication in wireless communication system | |
| KR101206402B1 (en) | Distributed antenna system and its data transmission method and central controller | |
| CN110535598B (en) | Method and device for determining quasi co-location reference signal | |
| US6094425A (en) | Self-adaptive method for the transmission of data, and implementation device | |
| CN100576285C (en) | Large-scale short wave communication network ship monitor location and emergent alarm Apparatus for () and method therefor | |
| US11502768B2 (en) | Method and device for configuring and receiving common control channel | |
| CN109983728B (en) | Physically separated channels for narrowband, low complexity receivers | |
| KR20190100239A (en) | Method of transmitting information, method of receiving information, apparatus and system | |
| WO2018177788A1 (en) | Wireless communication system with discrimination between extraneous received signals | |
| CN114424667B (en) | Communication method and device | |
| CN103249124B (en) | Dense distribution formula wireless communications method and system thereof | |
| CN112771798B (en) | Resource rate matching for remote interference management | |
| CN108882254B (en) | Multi-user distributed emergency synchronous networking method based on short-wave communication | |
| CN112637949A (en) | Networking and positioning method and system for short-wave emergency communication | |
| KR20220034824A (en) | Method, apparatus and storage medium for indicating channel state in unlicensed spectrum | |
| CN102843747B (en) | The signaling method of a kind of synchronizing channel, broadcast channel and UE cut-in method | |
| CN107113578A (en) | A kind of method and device of narrowband systems synchronization or broadcast | |
| US11522647B2 (en) | Single-carrier resource mapping for non-terrestrial network deployments | |
| CN104901969B (en) | A kind of design method of the ship automatic identification system based on OFDM | |
| CN109218979B (en) | Distributed indoor navigation system and downlink signal transmission method thereof | |
| CN110062434B (en) | Relay communication method | |
| CN112188464A (en) | Short-wave emergency communication system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |