CN111431583A - Comprehensive emergency communication system based on satellite network - Google Patents
Comprehensive emergency communication system based on satellite network Download PDFInfo
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- CN111431583A CN111431583A CN202010269151.2A CN202010269151A CN111431583A CN 111431583 A CN111431583 A CN 111431583A CN 202010269151 A CN202010269151 A CN 202010269151A CN 111431583 A CN111431583 A CN 111431583A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
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- H04B7/18517—Transmission equipment in earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
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- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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Abstract
The invention discloses a comprehensive emergency communication system based on a satellite network, which comprises a satellite, a main control station and at least one sub-control station, wherein the satellite is respectively in communication connection with the main control station and the at least one sub-control station, and the main control station is in communication connection with the at least one sub-control station.
Description
Technical Field
The invention belongs to the technical field of wireless data communication, and particularly relates to a comprehensive emergency communication system based on a satellite network.
Background
Emergency communication, as the name implies, is communication performed by using existing mobile communication equipment to ensure communication when an original communication system is seriously damaged or an emergency occurs, and the emergency includes emergency rescue and relief work, emergency events, major national activities, national defense preparation and the like. Sichuan is an area with frequent disasters and wide disaster areas, is also the area with the most serious ice coating, and has natural conditions such as weather, geography and the like forming the ice coating. In addition, mountains in the Sichuan are plentiful and have much water, and geological disasters such as flood, debris flow, landslide and the like often occur. When a communication system is greatly damaged by natural disasters, the work difficulty of rescue and relief work and communication recovery is greatly increased along with the interruption of ground traffic.
In 2008, 8.0-level Wenchuan earthquake in 5 months, the public network is completely paralyzed, and the command and report can not be rapidly and correctly carried out, thus increasing the difficulty of emergency rescue and disaster relief in the first time. In order to comprehensively improve the capability of coping with natural disasters and emergent dangerous cases, an emergency communication command system is constructed, and communication with a group company safety production emergency management platform, power dispatching and the like is established according to the principles of safety, reliability, advanced technology and reasonable investment and by the implementation of modes of overall planning, step-by-step implementation, pilot site firstly and later popularization.
The emergency communication system is used as a supplement of a public network and an existing communication network, the reliability of the drainage basin communication network is comprehensively improved, efficient and reliable means are provided for disaster reporting, responding, evaluating, commanding, scheduling and the like after a disaster occurs, the disaster can be controlled to a greater extent, and the risk of loss expansion is reduced.
Under the rapid development of various wireless communication means at present, the traditional communication means, especially short-wave communication, is still widely applied to various industries due to the unique communication performance. And with excellent performance, the method plays an important role in communication guarantee in various industries. The method is widely applied to various fields such as international peace and weekend, flood fighting and emergency rescue, forest fire, outburst on duty, maritime affairs, postal service, field operation, international rescue and the like, and plays a powerful role. However, in the prior art, an ultrashort wave communication system which is convenient and low in cost does not exist.
In order to solve the above problems, an ultrashort wave data communication system has been developed by the inventor.
Disclosure of Invention
The present invention is directed to solving the above problems by providing an integrated emergency communication system based on a satellite network.
The invention realizes the purpose through the following technical scheme:
the comprehensive emergency communication system based on the satellite network comprises;
a satellite;
the system comprises a master control station, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the master control station comprises an antenna system, a BUC system, P LL-L NB, a combiner, two satellite communication terminals SkyWAN IDUs, a VoIP gateway, the network switch, the frequency spectrograph and the biaser, the antenna system is respectively connected with the BUC system and the P LL-L NB, the BUC system is connected with the combiner, the combiner is respectively connected with the two satellite communication terminals SkyWAN IDUs, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the two satellite communication terminals SkyWAN IDUs and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the two satellite communication terminals SkyWAN IDUs and the frequency spectrograph;
the system comprises at least one sub-control station, wherein the sub-control station comprises an antenna system, a BUC system, P LL-L NB, a duplexer, a satellite communication terminal SkyWAN IDU, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the antenna system is respectively connected with the BUC system and the P LL-L NB through the duplexer, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the satellite communication terminal SkyWAN IDU and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the BUC system, the satellite communication terminal SkyWAN IDU and the frequency spectrograph;
the satellite is respectively in communication connection with the main control station and the at least one sub-control station, and the main control station is in communication connection with the at least one sub-control station.
Specifically, the master control station further comprises an IP video conference terminal, a signal quality detection module, an NMS and ground station monitoring system, and the IP video conference terminal, the signal quality detection module, the NMS and ground station monitoring system are respectively connected with the two satellite communication terminals SkyWAN IDU and the spectrometer.
Preferably, the network switch comprises a multi-serial port network conversion module and a serial port network conversion module, the multi-serial port network conversion module is used for outputting power data, and the serial port network conversion module is used for inputting and outputting data signals.
Specifically, the sub-control station further comprises an IP video conference terminal, a signal quality detection module, and a ground station monitoring system, wherein the IP video conference terminal, the signal quality detection module, and the ground station monitoring software are respectively connected with the BUC system, the satellite communication terminal skywaindu, and the spectrometer.
Preferably, the network switch comprises a serial port network conversion module, and the serial port network conversion module is used for outputting the power data.
The invention has the beneficial effects that:
the invention relates to a comprehensive emergency communication system based on a satellite network;
the system comprises a satellite, a main control station and sub-control stations, the main control station and each sub-control station are reasonable in structure, the main control station comprises an antenna system, a BUC system, P LL-L NB, a combiner, two satellite communication terminals SkyWAN IDU, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, and the sub-control stations comprise the antenna system, the BUC system, the P LL-L NB, a duplexer, the satellite communication terminals SkyWAN IDU, the VoIP gateway, the network switch, the frequency spectrograph and the biaser.
Drawings
FIG. 1 is a schematic diagram of a system full mesh topology;
FIG. 2 is a detailed layout diagram of a system full mesh topology;
FIG. 3 is a schematic diagram of a master control station;
FIG. 4 is a schematic structural diagram of a sub-control station;
FIG. 5 is a schematic diagram of a system hybrid network topology
In the figure: 1-a satellite; 2-a master control station; and 3-sub control station.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
examples, as shown in FIGS. 1-5;
an ultrashort wave data communication system, comprising;
a satellite 1;
the main control station 2 comprises an antenna system, a BUC system, P LL-L NB, a combiner, two satellite 1 communication terminals SkyWAN IDUs, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the antenna system is respectively connected with the BUC system and the P LL-L NB, the BUC system is connected with the combiner, the combiner is respectively connected with the two satellite 1 communication terminals SkyWAN IDUs, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the two satellite 1 communication terminals SkyWAN IDUs and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the two satellite 1 communication terminals SkyWAN IDUs and the frequency spectrograph;
the system comprises at least one sub-control station 3, wherein the sub-control station 3 comprises an antenna system, a BUC system, P LL-L NB, a duplexer, a satellite 1 communication terminal SkyWAN IDU, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the antenna system is respectively connected with the BUC system and the P LL-L NB through the duplexer, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the satellite 1 communication terminal SkyWAN IDU and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the BUC system, the satellite 1 communication terminal SkyWAN IDU and the frequency spectrograph;
the satellite 1 is respectively connected with a main control station 2 and at least one sub-control station 3 in a communication mode, and the main control station 2 is connected with the at least one sub-control station 3 in a communication mode.
Specifically, the master control station 2 further includes an IP video conference terminal, a signal quality detection module, and an NMS & ground station monitoring system, where the IP video conference terminal, the signal quality detection module, and the NMS & ground station monitoring system are respectively connected to the two satellite 1 communication terminals SkyWAN IDU and the spectrometer.
Preferably, the network switch comprises a multi-serial port network conversion module and a serial port network conversion module, the multi-serial port network conversion module is used for outputting power data, and the serial port network conversion module is used for inputting and outputting data signals.
Specifically, the sub-control station 3 further includes an IP video conference terminal, a signal quality detection module, and a ground station monitoring system, where the IP video conference terminal, the signal quality detection module, and the ground station monitoring software are respectively connected to the BUC system, the satellite 1 communication terminal skywaindu, and the spectrometer.
Preferably, the network switch comprises a serial port network conversion module, and the serial port network conversion module is used for outputting the power data.
The SkyWAN VSAT satellite 1 communication system (otherwise known as a network) consists of a space segment and a ground segment. The various geostationary orbit communication satellites 1 in the space segment provide satellite 1 transmission channels for ground stations of the SkyWAN VSAT system, while the SkyWAN provides the space interface to these satellites 1. Currently, the SkyWAN VSAT system in huaneng, sichuan, uses a transparent transponder from asian satellite No. 7, receiving a signal from a ground station, and after frequency conversion and power amplification, transmitting back to the ground. Otherwise, no data processing, switching or routing is done on the satellite 1.
In a SkyWAN network, satellite 1 ground stations are interconnected through satellite 1 using a multi-carrier frequency hopping TDMA (MF-TDMA) satellite 1 channel access technique. Multi-carrier frequency hopping TDMA is a technology that FDMA (frequency division multiple access) and TDMA (time division multiple access) are efficiently combined, is the basis of various satellite 1 network topologies (full mesh, star, hybrid), and supports single-hop satellite 1 connections between ground stations. To fully exploit the inherent advantages of TDMA technology, SkyWAN also employs a flexible channel access protocol that is directed towards dynamic on-demand allocation to enable sharing of available transmission capacity.
Although in principle the position of all ground stations in the network is the same, there are also several TDMA functions that have to be centrally controlled by one reference station (master station 2). First, the master control station 2 is responsible for making a transmission plan, i.e., the master control station 2 receives and evaluates requests from all ground stations, and then generates a TDMA frame plan, which is then distributed to other ground stations. Secondly, the master station 2 is also responsible for issuing time references for coordinating (synchronising) channel access.
For this purpose, the indoor unit (IDU) of the master station 2 has to be supplemented with an FPG (frame plan generator) card for calculating the on-demand time slot allocation in the TDMA frames. Besides the main master control station 2, a standby master control station 2 can be set in the SkyWAN network to take over network control tasks when the main master control station 2 fails. The master control station 2 operates independently of the network management activities, i.e. the network management centre and the master control station 2 may be located at different sites. In the user network, the Chengdu center is used as a main master control station 2 to manage the operation of the whole network; the south China Mobile will be used as a standby master control station 2 and will be built at a later stage.
In addition to the master control station 2, each ground station is a slave control station, wherein the slave control station 2 is considered as a slave control station. To distinguish between the standby master station 2 and the ordinary stations that do not have the frame plan generation capability, the term "pure slave station" may be used.
In the existing network, the Chengdu master control station 2 was configured as a master network control station, and the remaining 18 remote fixed stations (baoxing river/yaan station, baoxing river/tillite dam, baoxing river/yucheng power station, baoxing river/small gate, taiping/dujiang weir, taiping power station, taiping dam, bartang/lava mountain power station factory building, kang/cold bamboo gate power station gate head, kang/mandarin dam living area, baoxing river/flying gate, baoxing river/cuprum power station, baoxing river/fortune pipe center, baoxing river/civil power station, kayak/ancient city) and 4 portable stations (baoxing river/portable station, taiping/portable station, kang/portable station, and jiang/portable station) were all "wan" in the skyway network.
Primary communication service function
The satellite 1 communication network currently carries out the following main communication services:
voice communication: with VoIP technology, each station is able to communicate voice with all other stations simultaneously in a single hop through the satellite 1. The ground stations can communicate with each other and can make and receive calls from public network.
High-definition video transmission: each station has the capability of transmitting high-definition videos, wherein each mobile station can transmit the live videos back to the main control station 2 or a remote fixed station in a point-to-point mode and can transmit the live videos to a plurality of other stations simultaneously in a point-to-multipoint multicast mode. The monitoring pictures of the monitoring cameras of all the basin companies are checked at the main station through the satellite 1 network.
Video conference: interactive video conferencing between the central fixed station, other fixed stations and portable stations. The video conference with multiple points and the whole network can be held by taking any site as a chairman meeting place.
Data transmission (IP data and serial data): high-speed transmission of industrial monitoring data and the like is supported. The function of viewing industrial monitoring data through a satellite 1 network is realized at present.
Ultra-short wave digital cluster interconnection: the method is used for interconnection of the ultrashort wave digital trunking communication systems within the range of 3-5km of the local network, and realizes wide area interconnection of ultrashort wave trunking. The cluster voice call function among the companies in the drainage basin is realized at present.
SkyWAN ground station composition
The RFT (radio frequency transmitter) and the RFR (radio frequency receiver) together form part of an outdoor unit. These components are located in the chamberThe indoor and outdoor equipments adopt L frequency band intermediate frequency transmission signal, the intermediate frequency signal is converted with Ku frequency band or C frequency band, and received and transmitted by satellite 1.
The RFT radio frequency transmitter of (a) has various power levels that can be used to support a variety of applications.
Finally, the antenna as the most striking part, together with the radio frequency device, forms the complete
An outdoor portion of the ground station.
The main control station 2 is located in the success command department, the main control station 2 is not only the service center of the satellite 1 communication system, but also the network management center of the satellite 1 communication system, and is responsible for network control and management of the whole network (i.e. network control/network management station), therefore, the main channel devices of the main control station 2 all adopt the hot backup working mode, the main control station 2 is composed of a block diagram as shown in fig. 2-4, and comprises a Ku frequency band antenna system of 3.7 meters, a 1: 140W BUC system, a 1:1P LL L NB, a branching and branching device, a satellite 1 communication terminal SkyWAN IDU7000, a VoIP gateway, a network switch, network management software, a frequency spectrograph and the like.
The satellite 1 communication device of the central fixed master station is configured to:
1 surface of a Ku frequency band antenna with the length of 3.7 meters;
1:1 redundancy 40W Ku frequency band BUC outdoor radio frequency subsystem, including redundancy changeover switch;
0.5 meter of soft waveguide;
1:1 Ku frequency band P LL L NB;
1+1 SkyWAN IDU7000 master control unit
Providing 1 LAN (L AN) port and 4 serial data ports, directly supporting user TCP/IP, frame relay and synchronous transparent data transmission
1 FPG (frame plan generator) card is provided to provide network control function of the whole network;
1 set of SkyNMS network management system;
l frequency band intermediate frequency cable;
1 combiner;
1 blocking splitter (Bias-Tee);
1 Ethernet switch;
1 router;
1 frequency spectrograph;
1 VoIP gateway;
a plurality of Cat6 network wires;
other equipment (e.g., video conferencing terminals, telephone exchanges, work computers) are provided by the associated service subsystems.
A typical satellite 1 communication ground station is composed of radio frequency channel equipment, communication terminal equipment and a service system.
The radio frequency channel equipment comprises a BUC, L NB and an antenna, wherein the BUC completes the conversion and power amplification of L frequency band signals to Ku frequency band signals, the L NB carries out low noise amplification on received signals from the satellite 1, then converts the signals into L frequency band signals and feeds the signals to a demodulator, and the antenna is used for transmitting and receiving signals to and from the satellite 1.
The terminal equipment comprises a satellite 1 demodulator (SkyWAN IDU), a VoIP gateway, a video conference terminal or an IP video coding and decoding terminal equipment and a multi-serial port-network conversion equipment, wherein the satellite 1 demodulator adopts a SkyWAN IDU7000 series with a network control function in the system, the basic function of the system comprises two parts, one part is to modulate baseband data (IP or serial port data) signals and convert the baseband data (IP or serial port data) signals into frequency band transmission or the reverse process, the intermediate frequency of the satellite 1 demodulator is L frequency band, the other part is to have a network control and management function, namely, the satellite 1 demodulators of all different sites construct a VSAT network through a satellite 1 channel, and a shared channel is used for completing mutual information transmission.
In order to ensure the reliable operation of the system and be beneficial to the daily operation maintenance management of the ground station, the main control station is also provided with a network management system for system configuration management and ensuring the reliable operation of the SkyWAN VSAT network.
Remote fixing station
All the sub-control stations 3 have the same status and support single-hop connection and communication service transmission between any two stations, the equipment configuration of all the sub-control stations 3 is the same, the main channel equipment adopts a single working mode according to the availability design, and the sub-control stations 3 form a block diagram as shown in fig. 2-5, and comprise a 2.4-meter antenna system, a single 16W BUC system, a single Ku frequency band P LLL NB, a power divider, a satellite 1 communication terminal SkyWAN IDU1070, a VoIP gateway, a network switch, a spectrometer and the like.
As shown in fig. 4, the sub-control station 3 is mainly configured to:
1 surface 2.4 meters Ku frequency band antenna;
1 outdoor radio frequency subsystem of 16 watt Ku frequency band BUC;
0.5 meter of soft waveguide;
1 Ku frequency band P LL L NB;
1 SkyWAN IDU1070 satellite 1 baseband device
Providing 3 local area network (L AN) ports and 1 special management L AN port, and directly supporting TCP/IP data transmission of users
1RU high L frequency band intermediate frequency cable;
1 blocking splitter (Bias-Tee);
1 Ethernet switch;
1 router;
1 frequency spectrograph; (the quantity is configured according to the basin company, one is configured for the Chengdu center, the Baoxing river company and the Tai Ping Ying company respectively)
1 VoIP gateway;
a plurality of Cat6 network wires;
the other devices are provided by the associated service subsystems.
The main difference between the configuration of the sub-control station 3 and the configuration of the main control station is that the model of a satellite 1 demodulator is SkyWAN IDU1070, and the sub-control station is a small, compact and beyond-value remote satellite 1 communication terminal. It has only 1U height, only provides IP interface, and is completely compatible with the existing SkyWAN IDU7000 series terminal.
Network architecture
SkyWAN has the capability to support a variety of topologies including point-to-point, point-to-multipoint (multicast or broadcast), star, mesh, tree, and hybrid networks. The mesh network is characterized in that any 2 stations can directly communicate with each other through a satellite 1 single hop without being forwarded through a certain master control station.
Advantages and benefits of the SkyWAN mesh include:
the time delay is small;
the transmission cost is low; high bandwidth occupation efficiency
Any station can be directly communicated with each other through a satellite 1 in a single hop manner;
the network has high flexibility and strong expansibility, and new sites can be added at any time and any place;
the network control and the network management can carry out redundancy backup in different places without a single fault point;
a large and expensive central main station is not needed;
the investment of the medium and small-sized network is low;
the high-speed, large-capacity, low-delay and real-time direct communication among the stations is facilitated;
the user network consists of a capital control station, 18 sub-control stations 3 and 4 portable stations in all branches. According to the user transmission service requirement, the network is designed into a full mesh network architecture, as shown in fig. 1 as an example:
under the condition that the system has a branch center, the SkyWAN VSAT network can be divided into a plurality of sub-networks according to requirements, each sub-network is of a full-mesh topology structure, and full-mesh interconnection and intercommunication of services such as voice, data, image video and the like can be realized among all stations in the sub-networks. Through network management control, interconnection and intercommunication of voice, data, image and other services among all subnet sites can be realized on the routing logic.
SkyWAN can construct a star network, and compared with the star network of TDM/TDMA system, the SkyWAN has the following advantages:
the service mode is simple and clear, and the network configuration is simple;
since the sub-control station 3 only communicates with the central master station, and the antenna of the central master station is usually large, the radio frequency equipment is also strong, the configuration of the antenna and the ODU of the sub-control station 3 can be small, and the cost of the ground station is also low;
the sub-control station can upgrade the function of supporting the mesh network in a software downloading mode at any time, thereby realizing the direct single-hop communication connection between the end stations through the satellite 1;
a large and expensive central master station is not required to be built, and the investment of a medium and small network is low;
the capacity expansion is strong, the flexibility is high, can increase the new site at any time and any place.
SkyWAN can also support hybrid networks on a mesh and star basis. The topology of its hybrid network is as follows. The SkyWAN system can mix two topologies in the same network, forming a "hybrid network". Some end stations can communicate with each other in a full mesh mode, and other end stations can perform sessions with a mesh node in a star mode. The star, hybrid or mesh network topology can be realized efficiently by using a single technology of the TDMA VSAT system. In the mesh network, all nodes can carry out call connection through a satellite 1 single hop; in a star network, however, all remote nodes communicate only with the master station and are not directly connected to other end stations. The two topologies can be combined in a network to form a hybrid mesh by using the TDMA VSAT system, wherein a part of nodes can directly communicate in a full mesh mode, and other nodes can communicate with only one master station in a star mode. As shown in fig. 5;
it must be emphasized that the network topology of the SkyWAN system is completely implemented by software configuration, and no hardware system is required to make any change or add devices, so that the network topology can be adjusted in real time according to the requirements of users. This is different from the pure star architecture technology systems such as TDM/TDMA or DVB-RCS systems, which can only support star networks and not mesh networks. The SkyWAN system can be adjusted to a star network structure at any time according to requirements or technical states.
Description of the System
Terminal on-line and off-line tracking
The hailing system monitors the up-down status of the interphone terminal and allows the dispatcher to inquire the current up-down status of the terminal when necessary.
Remote monitoring
Under the condition that the machine holding personnel do not know, the dispatcher remotely activates the remote monitoring function of the target terminal through the maritime communication system, and the target terminal can be continuously in a transmitting state at the moment, so that the aim of monitoring the field dynamics is fulfilled. For example, when a gangster is held, a rescue strategy can be made according to the returned background voice.
Supporting various voice scheduling types
The hello message supports various PDT standard call types including individual call, group call and full call. And each dispatching desk can monitor and dispatch at most 8 voice channels simultaneously, thereby providing flexible configuration for various industry requirements and use scenes and meeting the system deployment requirements of customers.
Remote killing and activating
When the terminal is stolen and the channel resource is illegally occupied, the dispatcher can remotely kill the terminal to prevent the terminal from normally working. The terminal which is killed remotely can be used normally after being activated.
Multiple map formats
The hailing news system can select different map formats and suppliers according to the requirements of users. The networking map supported by the maritime news is Google Maps; the supported offline Map formats are maplnfo and OpenStreet Map.
GPS positioning
Through the built-in GPS chip of the terminal, the dispatching desk can obtain the position information of the terminal, and allow the dispatcher to inquire the current position, and also can make the terminal upload the position information regularly through setting up the default area that the dispatcher can set up and display when opening the map, pop up the position information of the terminal when the mouse suspends on the GPS node, through operating the GPS node, realize the visual dispatch.
The types of electronic maps currently supported are Google Earth, Google Map, OpenStreetmap and Mapinfo (coordinate system is WGS-84)
Real-time tracking
The interphone terminal can be remotely configured through the maritime communication dispatching desk and can be enabled to upload GPS positioning information periodically, and the purpose of real-time tracking is achieved. And at the same time, the travel track can be displayed on a map. The real-time nature of the real-time tracking depends on the system channel usage.
Track playback
The function can play back the activity track of the terminal in a specified time range, so that the activity route of the duty personnel can be reviewed.
Track playback
The function can play back the activity track of the terminal in a specified time range, so that the activity route of the duty personnel can be reviewed.
Out-of-range alarm
The dispatcher can set a working area or a working restricted area for the terminal, once the on-duty personnel leaves the working area or enters the working restricted area, the command center can prompt the cross-area alarm information, and meanwhile, the on-duty personnel can also receive a preset short message to remind the on-duty personnel to return to the normal working area.
Mail access
Through the SMTP and POP3 mail server, the user can send daily mails to the staff member, and the staff member can also send short messages to any mailbox.
Short message
The dispatcher can send various information to the front duty personnel in a text form, and even in a noisy environment, the short message function can ensure smooth communication between the two parties.
Emergency alarm
When the on-duty personnel meet with an emergency, the alarm information can be sent to the command center through the terminal, and the command center organizes assistance in time according to the grasped incident place.
Recording and playback
All incoming and outgoing speech from the dispatch station is recorded. The dispatcher can inquire the call record according to the information such as the call type, the call ID, the date and the like and play back the recorded sound.
Data analysis and report output
The function can analyze the terminal cross-area alarm, positioning information and the up-down line record, and a dispatcher can refer to the data to perform service analysis.
PSTN telephone access
The Hailingcong supports standard SIP protocol, can be connected into PSTN network, realize the intercommunication between intercom and cell-phone, fixed telephone.
Cross-region communication
Through the cross-region communication function, the interconnection and intercommunication among different frequency bands, different frequency points, different regions, different systems and digital-to-analog can be realized, the communication range of a user is expanded, the intercommunication of different networks is realized, and the analog-to-digital conversion is smoothly transited.
Dispatcher intercommunication
The enterprise internal communication platform is provided, a dispatcher can use the dispatching desk to carry out daily office communication without switching other communication tools, the enterprise is helped to improve the operation efficiency, and the telephone resource occupancy rate is reduced.
Transfer station access
The number of gateways can be reduced through the relay station, the operation cost is reduced, the communication range is expanded, and the deployment of a single-station mode and an IP interconnection mode of the relay station is supported by the Haolingxing.
End-to-end voice encryption (SE L P)
The transfer platform is used for scheduling, and voice encryption transmission between a dispatcher and a mobile terminal user can be realized. The voice encryption can prevent the voice from being intercepted, and the safety of the communication is improved. In the calling process, when the calling key and the called key are matched, the voice can be received. Only support the transit station V5.06.06.000)
Remote sensing and telemetry
The dispatcher can inquire the state of the external equipment connected with the terminal and control the external equipment (such as a door) through the Hai Ling scheduling command system client. Therefore, under the condition of remote equipment, the equipment can be monitored and data can be acquired.
Air interface write frequency (the transfer station must be more than 5.05 edition, the vehicle station and the terminal 5.0)
And remote writing frequency is realized. The dispatcher can carry out write frequency configuration on partial functions of the terminal through the Hailingmeng dispatching command system client, and the write frequency configuration comprises the following steps: adding or deleting calling contact persons, adding renting calling contact persons, adding or deleting a receiving group list, modifying aliases and IDs of the interphones, setting receiving and transmitting frequencies of the terminals, setting time slots and setting color codes.
Offline short message
The dispatcher can directly send the short message to the mobile terminal, and the mobile terminal can also send the short message to the dispatching desk. When the dispatching desk receives the short message, the dispatching desk has voice prompt, if the dispatching desk stays in the non-short message interface, the number of unread short messages is displayed on the interface.
If the mobile terminal is not on-line, the dispatcher can also send a short message to the terminal, and the terminal can receive the short message when the terminal is on-line within a limited time (default of 10 days).
Timed short message
The dispatcher can send short messages to the mobile terminal at regular time (according to month, week or month) through the Hai Ling Command System client.
Overspeed warning
When the terminal moving speed exceeds the speed limit set by the dispatcher and lasts for a specified time (buffer time), the Hailangxin dispatching command system client displays an alarm and sends an alarm short message to the terminal to remind the terminal to decelerate. When the terminal moving speed is less than the speed limit and lasts for a specified time (buffer time), the maritime communication dispatching command system sends a short message to the terminal to prompt the warning to be released.
Main characteristics
Modularized design and flexible networking
The Haolingxing adopts the modular design, can construct the communication network and command system of single-station or multistation flexibly according to the requirements such as system capacity and coverage of customer, etc.
Multi-map engine
The hailing news system supports various map engines, such as: google Maps, MapInfo, OpenStreetMap, etc., the customer may select the appropriate map format and provider based on his own industry application.
Multi-level rights management
In order to ensure the safety of the system and the reasonability of resource use, SmartDispatch provides a unified authority management mechanism, a system administrator allocates schedulable terminal resources and a scheduling area for a dispatcher according to requirements, and special functions can be owned by the dispatcher with a higher level, such as remote deactivation/activation.
Split screen scheduling
The hailing news supports multiple views, a dispatcher can display the concerned views in a split screen mode, frequent view switching is avoided when a single screen is displayed, and working efficiency is greatly improved.
Supporting multiple languages
Hailing news provides a rich choice of languages as a product for global customers. The client can switch just by a little bit in the interface, and the application does not need to be restarted.
Avoiding monthly rental fee of public network operation
The Hill-Ling news changes the past GPS data transmission mode, does not use the public network any more, but uploads the GPS data through the PDT private network, avoids paying expensive GPRS monthly rent to the public network operator, and greatly reduces the operation cost.
Comprehensive emergency communication system based on satellite network
According to the requirements, a set of comprehensive emergency communication system based on the satellite network is built so as to meet the voice communication between the insides of all the branch companies and between the Sichuan company and all the branch companies. Due to the high degree of security involved in the information, the content of the communication is not eavesdropped by the rest of the person, and the system employs highly reliable digital encryption.
Aiming at the communication function and the signal coverage requirement, a digital IP interconnection system is adopted to construct 22 communication base stations, one communication base station is respectively constructed at each branch station, and all the base stations are interconnected by adopting a wired IP network. The base station adopts a digital RD980 channel machine, the RD980 channel machine is provided with an IP network interface, a plurality of base stations can be accessed to the Internet or a local area network to realize interconnection, the RD980 channel machine adopts a TDMA system, and each base station can simultaneously realize two paths of digital calls, wherein one path of digital calls meets the communication use in the site, and the other path of digital calls meets the call use between the sites.
After a digital IP interconnection system is established, various calling functions including single calling, group calling, full calling and the like can be realized, the system adopts double time slots, double-way communication can be realized in a bandwidth of 12.5KHz, the frequency spectrum utilization rate is improved by 4 times compared with the single-way communication of 25KHz of an analog communication system, and various data services such as short messages and the like are also provided. The digital IP simulcast system has strong functions and can be flexibly configured according to the requirements of customers.
Personal calling
The terminal enters the contact list by one key and initiates a person-to-person call. For the call success, the call path is automatically connected immediately, for the call failure, the called user is prompted to turn off or busy, and the mobile terminal can dynamically display the number of the calling party in the call process. The command center in the camp can realize the private conversation of each sentry.
Group calling
The system supports the group calling function so as to meet the division of the working groups of different teams. The terminal enters the contact list by one key to initiate group calling, and after receiving the group calling, the called judges that the local machine writes the group calling ID, and then joins the group calling. The "late entry" function is supported. The command center of the campsite can realize unified command and dispatch of all sentries.
Full call
The system can send a uniform full-call code from a signaling channel through a dispatching desk or a high-level interphone to realize the full-call function of a system user, and ensure that 'one-call-for-one' is realized in major activities. The camp command center can realize dispatching and commanding of all the personnel.
Short message call
Data and Chinese and English information can be transmitted between mobile stations and between the mobile stations and the base station. The terminal supports Chinese short message input.
Missed call prompt
When the mobile station receives a call from another mobile station (only one call), the called subscriber is not present or does not answer the call for other reasons, and the call fails. In this case, the called terminal records the calling subscriber identity code and the calling time for timely callback. A maximum of ten such pieces of information can be recorded.
When the unanswered call information is not read out, the display screen of the mobile station is prompted.
Dialed call alert
A maximum of 10 dialed call records (only call records) may be stored separately. When the call record is full, if there is a new call record, the oldest record will be automatically replaced.
Connected call prompt
Up to 10 received call records (only call records) may be stored separately. When the call record is full, if there is a new call record, the oldest record will be automatically replaced.
A contact list;
the terminal can store 200 contact lists and support Chinese and English manual input and computer programming modes.
One-touch entry into contact list
Through shortcut key setting, the contact list can be accessed by one key, the detailed information of the contact can be checked, and the contact call can be quickly initiated by pressing PTT.
Manual security alarm management
The terminal is provided with an emergency alarm shortcut key, and the emergency alarm shortcut key can be manually pressed to send emergency alarm information to the dispatching desk under the dangerous condition.
Automatic safety alarm management
The interphone terminal has a 'falling down alarm' function, after the function is started, once the interphone inclines to a set angle for a certain time, the interphone can automatically send alarm information, and if workers intervene manually, the interphone defaults that the workers are dangerous, and the interphone automatically sends emergency alarm information to the dispatching desk.
Base station IP interconnection
The Haidao DMR relay station supports an IP interconnection function, exchanges voice and data at a network transmission layer, and ensures the safety of communication through an end-to-end encryption technology.
Supporting roaming functionality
After all base stations realize IP interconnection, the base station transfer platform and the terminal support the roaming function.
The walkie-talkie set as roaming is locked at the base station under normal conditions, once the received signal of the relay station of the base station is weaker than a set value, the terminal can automatically search the base station signal with stronger signal, automatically judge the signal, and automatically switch and lock.
The channel switching process in the roaming process does not influence the conversation of the terminal and the use of the user.
Short wave communication system
According to the requirements, a set of shortwave-free communication system is built to meet the voice communication between the insides of all branch companies and between the Sichuan company and all branch companies. Due to the reliability of the short-wave communication, effective information can be transmitted in time when the serious geological meteorological disaster is faced, and the short-wave communication is encrypted in consideration of the importance of the transmitted information.
And aiming at the communication function and the deployment requirement, 13 communication base stations are built, one communication base station is respectively built at each branch important site, and the base stations are interconnected by adopting short wave signals. The base station adopts a digital short-wave radio station.
Ultra-short wave and satellite link networking technology
The communication emergency function adopts a structure of integrated heaven and earth and hierarchical networking, as shown in the following figure
Sky: the satellite communication is mainly used for realizing the real-time remote transmission of voice, data and video; the system has the advantages that marine satellites, Beidou satellites and the like are taken into consideration, and the requirements of satellite telephones, satellite navigation positioning and short message communication under emergency conditions are met;
ground surface: each unit command center is mainly based on an electric power ground communication network, has public network PSTN, Internet, mobile communication and the like, and realizes communication in various forms (including telephone, multi-party call, image, video conference and the like) among all levels of command centers; according to the emergency disaster site, various site emergency means such as a portable satellite ground station, a satellite telephone, a single soldier map transmission, a Beidou navigation system, a digital cluster and a backpack short wave radio station are selectively configured according to the actual site conditions, so that the information intercommunication between the disaster site and a rear command center is realized.
Upgradable converged communication platform
The design of the converged communication platform follows the national public safety industry standard 'Police Unified Communication (PUC) interconnection and interworking technical standard', and the standard specification stipulates the technical requirements of the general architecture, the functional requirements, the performance indexes, the interface specifications, the safety requirements, the media stream transmission specifications and the like of a public security unified communication (PUC) platform.
The integrated communication platform designs a wireless communication dispatching gateway, a relay exchange gateway, a video conference intercommunication gateway and a video intercommunication gateway according to the PUC standard requirement, and the wireless communication dispatching gateway, the relay exchange gateway, the video conference intercommunication gateway and the video intercommunication gateway are respectively accessed into a wireless communication system, a PSTN (public switched telephone network), a video conference system and a video monitoring system, provide communication support and service capacity for an electric power emergency command service application system, and complete an integrated command dispatching function.
The converged communication platform supports multi-level deployment according to the PUC standard requirements. Namely, when networking, the provincial network, the city bureau and the two-stage PUC platform are all interconnected by an IP protocol.
The design of the converged communication platform fully considers the diversified requirements of a Unicom multi-system and multi-network communication system, adopts a service-oriented system architecture, integrally plans and hierarchically designs, ensures good expansibility and flexibility and stability and safety, and adopts a multilayer system architecture as follows:
the converged communication platform converts voice and signaling of different systems of wireless communication systems into standard signaling through various wired gateways and wireless gateways, and exchanges the voice, data and signaling in a server of the converged communication platform to realize the function of cross-system interconnection and intercommunication.
The functions that can be realized by interconnection and interworking include: the functions of each call, group call, each short message and group short message, which can be realized by the interconnection among the systems are shown in the following table:
① channel interworking call
② channel call and group call intercommunication
③ group calling and group calling intercommunication
④ interworking of public network calls with channel calls
⑤ public network call and group call intercommunication
⑥ public network individual call intercommunication
⑦ group short message intercommunication
The specific realization function is as follows:
1) the system is responsible for fusing and butting various data application systems such as PGIS, video monitoring, video conference and the like, and provides a uniform dispatching interface for a fire communication command system.
2) The system is responsible for fusing and butting the multilevel interconnection of various communication systems and the PUC and provides a uniform dispatching interface for a fire communication command system.
3) The system is responsible for fusing and butting various communication systems such as PDT cluster, Tetra cluster and IPPBX, and provides a uniform communication service interface for the fire communication command system.
4) The dual-machine main-standby function is supported, and the stability and reliability of the converged communication system are guaranteed.
5) And a rich scheduling application mode irrelevant to a communication system and a data support system is realized for the fire communication command system.
6) The system is responsible for docking with business data support systems such as PGIS video monitoring and the like, isolating the change of an application system and ensuring the flexibility of docking expansion of a data business system.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The comprehensive emergency communication system based on the satellite network is characterized by comprising;
a satellite;
the system comprises a main control station, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the main control station comprises an antenna system, a BUC system, P LL-L NB, a combiner, two satellite communication terminals SkyWANIDU, a VoIP gateway, the network switch, the frequency spectrograph and the biaser, the antenna system is respectively connected with the BUC system and the P LL-L NB, the BUC system is connected with the combiner, the combiner is respectively connected with the two satellite communication terminals SkyWAN IDU, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the two satellite communication terminals SkyWAN IDU and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the two satellite communication terminals SkyWAN IDU and the frequency spectrograph;
the system comprises at least one sub-control station, wherein the sub-control station comprises an antenna system, a BUC system, P LL-L NB, a duplexer, a satellite communication terminal SkyWAN IDU, a VoIP gateway, a network switch, a frequency spectrograph and a biaser, wherein the antenna system is respectively connected with the BUC system and the P LL-L NB through the duplexer, the P LL-L NB is connected with the biaser, the biaser is respectively connected with the satellite communication terminal SkyWAN IDU and the frequency spectrograph, and the VoIP gateway and the network switch are respectively connected with the BUC system, the satellite communication terminal SkyWAN IDU and the frequency spectrograph;
the satellite is respectively in communication connection with the main control station and the at least one sub-control station, and the main control station is in communication connection with the at least one sub-control station.
2. The integrated emergency communication system based on satellite network according to claim 1, wherein the master station further comprises an IP video conference terminal, a signal quality detection module, and an NMS & ground station monitoring system, and the IP video conference terminal, the signal quality detection module, and the NMS & ground station monitoring system are respectively connected to the two satellite communication terminals SkyWAN IDU and the spectrometer.
3. The integrated emergency communication system based on the satellite network according to claim 1, wherein the network switch includes a multi-serial network conversion module and a serial network conversion module, the multi-serial network conversion module is used for outputting power data, and the serial network conversion module is used for inputting and outputting data signals.
4. The integrated emergency communication system based on the satellite network according to claim 1, wherein the sub-control station further comprises an IP video conference terminal, a signal quality detection module, and a ground station monitoring system, and the IP video conference terminal, the signal quality detection module, and the ground station monitoring software are respectively connected with the BUC system, the satellite communication terminal SkyWAN IDU, and the spectrometer.
5. The integrated emergency communication system based on satellite network of claim 1, wherein the network switch comprises a serial network conversion module for outputting power data.
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Correction item: Applicant Correct: SICHUAN HUANENG FUJIANG HYDROPOWER Co.,Ltd. False: Sichuan Huaneng Fujiang hydropower Co.,Ltd. Number: 29-02 Page: The title page Volume: 36 Correction item: Applicant Correct: SICHUAN HUANENG FUJIANG HYDROPOWER Co.,Ltd. False: Sichuan Huaneng Fujiang hydropower Co.,Ltd. Number: 29-02 Volume: 36 |
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Application publication date: 20200717 |