CN102184616A - Time division multiple access technology-based communication system for transmitting air situation and disaster situation early warning information - Google Patents

Abstract

The invention discloses a time division multiple access (TDMA) technology-based communication system for transmitting air situation and disaster situation early warning information. In the system, early warning information of various types of alarms such as air defense, disaster prevention and the like is transmitted by using the TDMA technology and a distributed network topological structure; meanwhile, message communication, data communication and acoustic code word communication are performed; and alarm information covers areas such as buildings, pits, tunnels, underground stores and the like by using various alarm information transmission technologies. The aims of quickly and reliably transmitting and returning various types of early warning information, reporting the various types of alarm information and transmitting various types of service are fulfilled. The system has the function of quickly transmitting and distributing the various types of early warning information such as air defense, flood defense, shock resistance, fire prevention, flood discharge and the like, and can realize quick and accurate information transmission and all-around coverage of the alarm information, so that the alarms are reported without miss points or blind points, and real-time property, accuracy, high efficiency and all-around property of a civil air defense alarm are improved.

Description

A kind of communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma

Technical field

The present invention relates to areas of information technology, particularly relate to a kind of communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma.

Background technology

Typical prior art is to adopt the star-like and tree type of three grades of networkings of secondary control combine topological structure, the integrated alarm control system that adopts the working method of wireless frequency division (FM) multichannel control, alarm granting control system.

The integrated alarm control system mainly is made up of central station, through-station and terminal station three parts.Wherein central station comprises computing machine, central control unit, Control Software, encryption software, wired expanding element and antenna transmission system etc.; The configuration and the central station of through-station are basic identical; The terminal station comprises equipment disposition such as the electronic alarm controller of electroacoustic, broadcasting station alarm controller, TV station's alarm controller, information station's alarm controller, audio alert terminal.When the war of cities and the integrated information reported of people's air defence alarm at ordinary times report to the police and concentrated controling management, the alarm kind comprise early warning, anxious alert, separate alert, calamity police, fire-fighting; Directly control 128～256 terminals.

It is to utilize the equipment that multiple means control warning horn such as has, wireless to ring that control system is provided in alarm, mainly (mainly be responsible for the receiving alarm instruction by main control equipment, produce and provide the alarm control signal, and finish control and management to middle opertaing device, terminal control device), neutral-controlled plant (is responsible for carrying out the alarm control signal that main control equipment is sent, and finish control and management to terminal control device), terminal control device (be used for receiving the alarm control signal from master control (or middle) equipment, and start siren ring) forms.It is subjected to empty feelings, disaster alarm instruction control from each side, and the local alarm alert network in the whole city is controlled and monitored.

Existing air defense warning system means and pattern are single, sound equipment is coated with the blind area, be difficult to differentiate the alarm kind and have a power failure and problem such as can't use, mainly there is following drawback in existing this warning system: the one,, in a single day central station or through-station break down (such as being destroyed), and then the terminal station can't receive signal and produce actuation of an alarm; The 2nd,, the warning kind is limited to, at present three kinds of audible alarms of air raid alarm in advance, air raid alarm, allclear of using of people's air defense department have defined the sound equipment format standard, and various the condition of a disaster alarms such as typhoon warning, seismic sea wave warning, flood control alarm, flood discharge alarm, rubble flow alarm, alarm of fire, earthquake warning, chemical accident etc. can't be discerned by distinguishing of sound equipment; The 3rd,, have only audible alarm, lack word content, can't distinguish the particular content and the character of message; The 4th,, the terminal station is to the central station feedback signal, causes central station not know the processing of reporting to the police of those terminal stations, the processing of not reporting to the police of those terminal stations, and then influenced the warning effect; The 5th,, the overlay area of warning information is limited, in the place (such as zones such as " building ", " tunnel ", " tunnel ", " underground sales fields ") of signal blind zone, can't issue warning information.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, a kind of communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma is provided, this communication system has adopted time division multiple access (TDMA) (TDMA) technology and distributed network topology structure, has air defense, flood control, shockproof, fire prevention, the quick transmission and the distribution function of various early warning information such as flood discharge, can the transmission of realization information quick and precisely, the comprehensive covering of warning information, accomplish that alarm reports nothing " leak source ", do not have " busy point ", improved people's air-defence warning's real-time, accuracy, high efficiency and comprehensive property.

The technical solution adopted for the present invention to solve the technical problems is: a kind ofly be used to send the communication system of empty feelings the condition of a disaster early warning information based on tdma, comprise:

A webmaster computing machine, this webmaster computing machine are used for that warning information is handled and network operation management, to network transmission warning message and receive return information;

First terminal that has been predetermined to be the webmaster effect, this first terminal contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is connected with the webmaster computing machine is wired or wireless, is used for receiving and dispatching warning information and realizes the alarm processing;

Second terminal that is predetermined to be the effect of time-out base, this second terminal contains wireless transmit/receive units, signal processing unit, alarm processing unit and GPS unit, and it is used for to network transmitting time reference information, and receiving alarm information and realization alarm are handled;

A plurality of the 3rd terminals that have been predetermined to be bunch head effect, the 3rd terminal contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is used for receiving and dispatching warning information and realizes the alarm processing;

A plurality of Tetrapolar machines that have been predetermined to be terminal warning effect, this Tetrapolar machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, it is used for receiving alarm information and realize that alarm handles, and can be set the back in authority and rise and substitute first terminal or second terminal or second terminal;

A plurality of five terminal machines that in signal blind zone, play terminal warning effect that are predetermined to be, this five terminal machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is used for receiving alarm information and realize that alarm handles;

A plurality of blind area communication systems that are used for realizing signal of communication transmission in the blind area;

Forming one by one the 3rd terminal and several Tetrapolar machines covers the subnet of default subregion or forms a subnet that covers default subregion by one the 3rd terminal, several Tetrapolar machines, several blind area communication systems and several five terminal machines; In this subnet, the 3rd terminal signal forwarding that subnet is outer is given each Tetrapolar machine in the subnet or is also comprised the five terminal machine that is transmitted to correspondence by the blind area communication system, and the return signal of Tetrapolar machine in the subnet or five terminal machine is forwarded to outside this subnet;

The described webmaster computing machine and first terminal are located in any one subnet of all-ones subnet;

Described second terminal is located in any one subnet of all-ones subnet;

Form a major network that covers default big zone by webmaster computing machine, first terminal and all the 3rd terminals; In major network, the webmaster computing machine sends signal by first terminal to the 3rd contiguous terminal, and each the 3rd terminal is respectively to the 3rd contiguous terminal and the subnet forward signal at self place, and gives the 3rd contiguous terminal with the signal forwarding in the subnet.

Described blind area alarm communication system comprises tunnel warning information transfer device, this tunnel warning information transfer device comprises the hole repeater that is installed in the tunnel face and is installed in repeater in the hole in the tunnel, is connected by coaxial leaky cable between the repeater in hole repeater and the hole.

Described blind area alarm communication system comprises tunnel warning information transfer device, and this tunnel warning information transfer device comprises the microwave directional relay device that is installed in the tunnel face and is installed in microwave directional relay device in the tunnel.

Described blind area alarm communication system comprises tunnel warning information transfer device, and this tunnel warning information transfer device comprises the high-speed digital transmission radio station that is installed in the tunnel face, is connected by the balancing twisted-pair line between high-speed digital transmission radio station and the five terminal machine.

A kind ofly being used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, is to carry out the mutual information transmission between each terminal in the system on the basis when being based upon system, and it comprises:

The treatment step of time reference;

Reception information and the step of being handled;

The step of transmission information;

Wherein, be to be divided into time shaft one by one that length is the time unit of predetermined some minutes during system, and should the time unit as the TDMA round-robin cycle, each the time unit be divided into several time frames again, each time frame is divided into several slots again, by time slot, time frame, the time unit combination the time carrier of compound random series construction system TDMA net, system gives each terminal time slot that shares out the work, each terminal is emission information in distributing to the time slot of oneself, then receives the information of other terminal distribution in other time slot.

The treatment step of described time reference comprises:

A1. initial network login;

A2. synchronously thick;

A3. synchronously thin;

A4. keep synchronously.

Described reception information and the step of being handled comprise:

B1. received RF signal demodulation;

B2. channel data error correction decoding;

B3. receive source codec;

B4. judge whether to be a bunch head, if, just receive the encapsulation of forwards frame, change next step then, otherwise, next step directly entered;

Whether b5. judge to receive message is the network time reference data, if, carry out the treatment step of time reference, then change step b9, otherwise, continue next step;

Whether b6. judge to receive message is predefined alarm kind, if, carry out corresponding alarm and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B7. judge to receive whether message is message message, if, carry out the message Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B8. judge to receive whether message is speech information, if, install phonological working pattern and speech information processing fully, then continue next step, otherwise, next step directly entered;

B9. finish.

Described step b6 comprises the steps:

B601. judge to receive message and whether be alert message in advance, if, carry out in advance alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, next step continued;

Whether b602. judge to receive message is emergent alarm message, if, carry out emergent alarm message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B603. judge to receive whether message is typhoon warning message, if, carry out the typhoon warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B604. judge to receive whether message is seismic sea wave warning message, if, carry out the seismic sea wave warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Whether b605. judge to receive message is the flood control alert message, if, carry out the flood control alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Whether b606. judge to receive message is the flood discharge alert message, if, carry out the flood discharge alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Whether b607. judge to receive message is the rubble flow alert message, if, carry out the rubble flow alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B608. judge to receive whether message is alarm of fire message, if, carry out the alarm of fire Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B609. judge to receive whether message is earthquake warning message, if, carry out the earthquake warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B610. judge to receive whether message is chemical accident message, if, carry out the chemical accident Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B611. judge whether receive message is to remove empty feelings message, if, remove empty feelings Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B612. judge whether receive message is to remove the condition of a disaster message, if, remove the condition of a disaster Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B613. judge whether receive message is the message of trying, if the Message Processing of trying is shown the frame encapsulation with returning, and then changes step b9, otherwise, continue next step.

The step of described transmission information comprises:

C1. terminal initialization;

C2. judge when whether terminal has system,, continue next step if having, otherwise, get time reference claim frame data, change step c12 then;

C3. terminal state and running parameter scanning;

C4. judge whether the scanning of terminal state and running parameter changes, if, continue next step, otherwise, step c3 returned;

C5. judge whether to be hand-held terminal, if, change step c15, otherwise, next step continued;

C6. judge whether to be this terminal working time slot, if, continue next step, otherwise, step c15 changeed;

C7. judge whether to be a bunch head, if change step c11,, otherwise, continue next step;

C8. judge whether into the time cardinal extremity machine, if, get the time reference data and be packaged into time reference frame, then change step c12, otherwise, continue next step;

C9. judge whether the work at present pattern is speech pattern, if, get sound sign indicating number words Frame, then change step c12, otherwise, next step continued;

C10. judge whether to remain to be beamed back and show frame data, if, fetch and show frame data, then change step c12, otherwise, get terminal status frames data,, then change step c12;

C11. judged whether the transmitted frame data, if, get and receive the forwards frame data, then continue next step, otherwise, get bunch head status frame data, continue next step;

C12. send the data channel Error Correction of Coding;

C13. send the modulation of data radiofrequency signal;

C14. radiofrequency signal is delivered to emitting antenna;

C15. finish.

Of the present inventionly a kind ofly be used to send the communication system of empty feelings the condition of a disaster early warning information, adopted terminal equipment, the network management software and blind area alarm communication system based on tdma based on tdma.The main type of terminal system have fixedly terminal, vehicle-mounted terminal, webmaster terminal, the time cardinal extremity machine, hand-held terminal, LED terminal etc.All kinds of terminals are worked with 1 frame TDMA time loop, thus for various, alarm points provides alarm early warning information service everywhere; Every requirement that the network management software uses alarm communication according to the urban area scale is converted into every technical parameter of system's operation, is that user's terminal distributes time interval resource, by certain structure with the terminal networking and keep effective operation of network; The tunnel alarm communication system of blind area alarm communication system finishes tunnel warning information transmission by adopting the binary channels tunnel repeater.The warning information that system receives antenna carries out radio frequency by the hole repeater and directly amplifies, be sent in the tunnel or repeater in the hole through coaxial leaky cable (LCX) then, make alarm terminal in the tunnel can normally receive signal from TDMA loop outside the tunnel, simultaneously coaxial leaky cable (LCX) receives from tunnel alarm terminal signal, through the hole () repeater in the hole in carry out radio frequency directly amplification deliver to the hole outside antenna and launch.All terminals have the same network address in the tunnel; The people's air defense blindage warning information transmission system of blind area alarm communication system is contained in the channel device of alarm terminal outside the blindage, is connected with alarm terminal control module in the blindage by cable, finishes information transfer function; The indoor alarm terminal control module of the underground sales field of blind area alarm communication system/building chamber warning information transmission system will be contained in building top alarm terminal by cable channel device and underground sales field and building is connected, and finishes information transfer function.

The invention has the beneficial effects as follows that owing to adopted time division multiple access (TDMA) (TDMA) technology and distributed network topology structure, system of the present invention compared with prior art has following advantage:

The one,, system does not have strict control center, and all nodes equal is a peer to peer network; Any node can add and deviated from network at any time, and the fault of any node can not influence the operation of whole network, has very strong survivability; Overcome the topological structure defective that the star-like and tree type of three grades of networkings of secondary control that existing system generally adopts combines, both greatly improved the secondary system alert capability, also be convenient to design, produce, replace, keep in repair;

The 2nd,, system does not rely on public's resource, independently be provided with various alarm communication terminals, with " listening ", " seeing " two kinds of forms, for ground crowd, tunnel crowd, beneath sales field crowd, air raid shelter crowd, the good indoor crowd of building of shielding provide warning information; Accomplished that alarm reports nothing " leak source ", do not have " busy point ";

The 3rd,, the duty that each terminal device of TDMA can both the real time monitoring network; Various terminals send data at the Time Slot Occupancy channel of regulation in the system, receive the data of other website at other time slot; People's air-defence warning's real-time, accuracy, high efficiency, comprehensive property have been improved;

The 4th,, adopt general route News Search technology, strengthened the connectedness and the extendability of network, both can carry out big system upgrade networking easily, also the alarm control system of different manufacturers can be carried out networking and use, expanded the grid range of application;

The 5th,, system also can carry out message, the communication of data harmony sign indicating number words except that finishing alarm control, realize a net multipotency and secret information transmission means are provided, and is particularly suitable for using wartime;

The 6th, owing to adopted the TDMA technology, any terminal all can receive the routing iinformation of other terminal in the network in overstepping one's bounds timing crack, thereby the terminal of the various models of system all can be loaded on the mobile vehicle, is particularly suitable for command of people's air defense's alarm communication utilization in wartime.

Below in conjunction with drawings and Examples the present invention is described in further detail; But a kind of communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma of the present invention is not limited to embodiment.

Description of drawings

Fig. 1 be on the TDMA time shaft of the present invention time unit to the division synoptic diagram of time slot;

Fig. 2 is that the basic time slot of the present invention is formed synoptic diagram;

Fig. 3 is a Reed Solomon code structure synoptic diagram of the present invention;

Fig. 4 is that the present invention is distributed, the dynamic network structural representation;

Fig. 5 is the workflow diagram of Physical layer of the present invention;

Fig. 6 is that concentric cable warning information transmission connected mode synoptic diagram is revealed in tunnel of the present invention;

Fig. 7 is that the directed warning information of less radio-frequency of the present invention transmits the connected mode synoptic diagram;

Fig. 8 is that RS485 communication interface warning information of the present invention transmits the connected mode synoptic diagram;

Fig. 9 is that people's air defense blindage warning information of the present invention transmits the connected mode synoptic diagram;

Figure 10 is the remote connected mode synoptic diagram of people's air defense blindage optical fiber of the present invention;

Figure 11 is that the indoor warning information of the underground sales field/building of the present invention transmits the connected mode synoptic diagram;

Figure 12 is a synchronizing process synoptic diagram of the present invention;

Figure 13 is time reference information transmission flow figure of the present invention;

Figure 14 is that signal of the present invention receives processing flow chart;

Figure 15 is that signal of the present invention sends processing flow chart.

Embodiment

Embodiment, referring to shown in Figure 1, Fig. 1 is a system TDMA time structure of the present invention.It is 10 minutes time unit (epoch) that system is divided into length one by one with time shaft, it also is the TDMA round-robin cycle, each the time unit be divided into 60 time frames (frame) again, frame length is 10 seconds in the time of one, each time frame is divided into 500 time slots (time slot) again.Have time slot, time frame, the time unit combination the time carrier of compound pseudo-random sequence construction system TDMA net, unit comprises 30000 time slots in the time of one, network management system is given each terminal time slot that shares out the work on demand.To each terminal in the system, according to the time slot of its level allocation respective numbers.Terminal emission information in distributing to the time slot of oneself in the system then receives the various information that other terminal is distributed in other time slot.In order to realize system synchronization time division multiple access communication working method, be benchmark with the clock of a terminal (the time reference undertaker), the clock of other terminal is all synchronous with it, when forming unified system.

Basic time slot of the present invention is formed as shown in Figure 2.Each basic time slot is made up of initial protection section, sync section, message segment and delay protection section.A time slot generally is divided into initial protection section T1, transmits section T2 and delay protection section T3.Wherein initial protection section T1 and delay protection section T3 account for 5.5 milliseconds altogether, do not transmit; Sync section and transmission section account for 14.5 milliseconds, and emitting radio frequency signal can transmit the 280bit data.Wherein preceding 32bit transmitting synchronous data, back 248bit transmit information data.Sync section is used for realizing signal capture when system's terminal receives that demodulates information is synchronous.Message segment carries various communication service informations.

The Error Correction of Coding scheme has been adopted in system data transmission of the present invention, and each time slot only can transmit 128 binary messages from information source.Its production process is as follows: at first these 128 binary messages are pressed 24,8 15 groupings, obtain 10 groups altogether, utilize RS (Reed Solomon) error correction coding that each group is carried out (16 respectively then, 4) and (31,15) coding, thus the 280bit data obtained, as shown in Figure 3.At last with the 280bit position that generates totally 35 bytes launch by radio frequency unit as information flow.

The formatted data of transmission can be divided into two big classes in the system of the present invention net: a class is used to exchange data with alert, and the another kind of network that is used for is set up and kept.The message that is used to exchange data with alert comprises: supervision, identification, alarm control, alarm return show, relaying transmits and free text.The data that are used to set up and keep the network operation have: initial networking, terminal state, time reference and network management.The data of transmitting in a net may comprise above all data, also may a hop data.For certain class data, also not necessarily all system's terminals all will add and exchange, and have only those to have system's terminal of this type of exchanges data (produce or extract) demand just can add.

The net member of system of the present invention inserts a time slot piece or time slot and adopts 3 kinds of fundamental method: 1. fixed allocation: time slot or time slot piece fixed allocation are given a certain member, have only this terminal member just can take this time slot piece or time slot emission message, other terminal member can only receive message.2. competition takies: time slot piece or time slot pond are not that fixed allocation is given a certain member, but a plurality of member can take time slot emission message.Competition may cause a plurality of members all to launch message at same time slot, in this case, receives the member and only can receive the emission member's nearest with it message.3. time slot is reused distribution: it is the mutation of fixed allocation method that time slot is reused distribution.Time slot piece or time slot no longer are to be fixed in a certain member to have the right to take emission message, select a member to use this time slot piece or time slot emission message but serve as the member who controls the role by one.Therefore a plurality of members controlledly timesharing use this time slot piece or time slot.

For realizing various access methods, for a certain member, time slot can only be or be used for emission (comprising repeat transmitted) or be used for receiving.A member can not only launch but also receive in same basic time slot.

Native system adopts different apportion designs according to the difference of emission message.To warning information, adopt the fixed allocation method, to free text, sound sign indicating number words etc., the employing competition takies method or time slot is reused apportion design.

When we's terminal networks and to set up system by designated member's terminal as network time benchmark (NTR), when all member of other system terminals all will obtain and keep high system.During zero when being system during system's regulation midnight every day Beijing time zero, one day 24 hours per hour in, during system with the time unit, time frame and time slot count.Each time frame distributes fixing time slot position to be launched into network information by the NTR terminal.The NTR terminal the time, the minute, second value convert to when corresponding unit number, the time frame number and timeslot number, afterwards along with the time slot counting, network information is gone in emission on the crack.The networking message content comprise the current time correspondence time unit number, the time frame number and timeslot number.When the member's terminal in NTR terminal low coverage at first networks the acquisition system.In case obtain synchronously, be designated as the terminal of initial networking and all designated terminals (net head end machine) in the member's terminal in these NTR low coverages and also will on the time slot of said fixing, launch and go into network information as the relaying person.Therefore, the terminal of NTR long distance also can be received into network information, when obtaining system.

Referring to shown in Figure 4, of the present inventionly a kind ofly be used to send the communication system of empty feelings the condition of a disaster early warning information based on tdma, comprising:

A webmaster computing machine 1, this webmaster computing machine 1 are used for that warning information is handled and network operation management, to network transmission warning message and receive return information;

First terminal 2 (being the webmaster terminal) that has been predetermined to be the webmaster effect, this first terminal 2 contains wireless transmit/receive units, signal processing unit and alarm processing unit, itself and 1 wired or wireless being connected of webmaster computing machine are used for receiving and dispatching warning information and realize the alarm processing;

Second terminal 3 (instant cardinal extremity machine) that is predetermined to be the effect of time-out base, this second terminal 3 contains wireless transmit/receive units, signal processing unit, alarm processing unit and GPS unit, it is used for to network transmitting time reference information, and receiving alarm information and realization alarm are handled;

A plurality of the 3rd terminals that have been predetermined to be bunch head effect, the 3rd terminal of present embodiment has 3, promptly bunch 4, bunches 10 and bunch 19, the three terminal contain wireless transmit/receive units, signal processing unit and alarm processing unit, it is used for receiving and dispatching warning information and realizes that alarm handles;

A plurality of Tetrapolar machines that have been predetermined to be terminal warning effect, this Tetrapolar machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, it is used for receiving alarm information and realize that alarm handles, and can be set the back in authority and rise and substitute first terminal or second terminal or second terminal; The Tetrapolar machine of present embodiment comprise LED terminal 5, fixedly terminal 6, fixedly terminal 7, vehicle-mounted terminal 8, hand-held terminal 9, fixedly terminal 11, LED terminal 12, LED terminal 13, fixedly terminal 14, LED terminal 15, fixedly terminal 16, hand terminal 17, vehicle-mounted terminal 18, LED terminal 20, LED terminal 21, fixedly terminal 22, fixedly terminal 23, LED terminal 24, hand terminal 25 and vehicle-mounted terminal 28;

A plurality of five terminal machines that in signal blind zone, play terminal warning effect that are predetermined to be, this five terminal machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is used for receiving alarm information and realize that alarm handles; Terminal system 27, terminal system 30 and terminal system 31 are arranged in the present embodiment, and terminal system 27, terminal system 30 and terminal system 31 include one or more five terminal machines respectively;

A plurality of blind area communication systems that are used for realizing signal of communication transmission in the blind area; The blind area communication system of present embodiment comprises blind area communication system 26, blind area communication system 29 and blind area communication system 32;

Forming one by one the 3rd terminal and several Tetrapolar machines covers the subnet of default subregion or forms a subnet that covers default subregion by one the 3rd terminal, several Tetrapolar machines, several blind area communication systems and several five terminal machines; In this subnet, the 3rd terminal signal forwarding that subnet is outer is given each Tetrapolar machine in the subnet or is also comprised the five terminal machine that is transmitted to correspondence by the blind area communication system, and the Tetrapolar machine in the subnet or the return signal of five terminal machine are forwarded to outside this subnet.

Each terminal contains wireless transmit/receive units, signal processing unit and alarm processing unit at least, wireless transmit/receive units is used for realizing the wireless transmit and the wireless receiving of signal, signal processing unit is used for realizing to Signal Processing, the alarm processing unit then carries out alarm action (such as sound equipment, screen display etc.), wireless transmit/receive units is connected with signal processing unit, and signal processing unit is connected with the alarm processing unit.

Present embodiment, have three subnets, first subnet include webmaster computing machine 1, webmaster terminal 2, the time cardinal extremity machine 3, bunches 4, LED terminal 5, fixedly terminal 6, fixedly terminal 7, vehicle-mounted terminal 8, hand-held terminal 9, blind area communication system 32 and terminal system 31; Second subnet include bunch 10, fixedly terminal 11, LED terminal 12, LED terminal 13, fixedly terminal 14, LED terminal 15, fixedly terminal 16, hand-held terminal 17, vehicle-mounted terminal 18, blind area communication system 29 and terminal system 30; The 3rd subnet includes bunch 19, LED terminal 20, LED terminal 21, fixedly terminal 22, fixedly terminal 23, LED terminal 24, hand-held terminal 25, vehicle-mounted terminal 28, blind area communication system 26 and terminal system 27;

The described webmaster computing machine 1 and first terminal 2 are located in any one subnet of all-ones subnet; Present embodiment is provided in a side of in first subnet;

Described second terminal is located in any one subnet of all-ones subnet; Present embodiment also is provided in a side of in first subnet;

By webmaster computing machine 1, first terminal 2 and all the 3rd terminals promptly bunch 4, bunches 10 and bunches 19 forms one and covers default big regional major network; In major network, webmaster computing machine 1 is bunch 4 a transmission signal by first terminal 2 to the 3rd contiguous terminal, each the 3rd terminal is respectively to the 3rd contiguous terminal and the subnet forward signal at self place, and gives the 3rd contiguous terminal with the signal forwarding in the subnet.

Among the present invention, time reference: can specify a member as time reference in network arbitrarily, other member be synchronous with it, generally time reference and network management center can be made as same terminal; Bunch head: be the transmission center and the administrative center of each subnet, simultaneously also as routing node, control can according to priority be transferred downwards successively, and network management center can be assemblied in arbitrary unit in the net, and the network control control can according to priority be transferred downwards successively; Ordinary node: the alarm of One's name is legion receives, provides the control terminal.Wherein, bunch head is formed the core major network of native system.All terminals have essentially identical soft, hardware configuration in the net, and the switching of each terminal function is planned by network management center and managed.

The present invention is a kind of time-division multiple address system, therefore will net at all and specify one of them member as time reference among the member, and other member's clock is synchronous with it, and time reference can be specified arbitrarily in network.Native system is a kind of no node system, and its node is not fixed in other words.This is because in native system, and all net member terminals all are identical on function, and each node terminal sequences team when therefore working as native system, and time reference or bunch head can be specified arbitrarily.After being destroyed as time reference or leader cluster node member, the next one is taken over the member and is taken over its task of execution within will be at the appointed time, and system is worked on, and promptly can not ruined the paralysis that causes total system because of indivedual members or subnetwork.

System hardware of the present invention have fixedly terminal, vehicle-mounted terminal, webmaster terminal, the time cardinal extremity machine, hand-held terminal, LED terminal.All kinds of terminals are worked with 1 frame TDMA time loop, thus for various, alarm points provides alarm early warning information service everywhere.

The key technical indexes of terminal:

1. general index

1. general data business

A. empty feelings/the condition of a disaster information

B. control is provided in alarm

C. alarm is returned and is shown information

D. terminal status report

E. network management and information management

F. report

G. the sound sign indicating number is talked about

2. relay function

3. can with the webmaster auxiliary work

2. receipts/sender and antenna index

1. channel frequency resource

Frequency uses one of special-purpose six pairs of frequencies of people's air defense 450MHz～470MHz.

2. channel device index

A, general index

Working frequency range: 450-480MHz

Working frequency points: the special-purpose 6 pairs of frequencies of people's air defense, 12 channels

Working method: joining common-frequency simplex, data-voice compatibility.

Work place: big and medium-sized cities

Communication distance: 15～25 kilometers of radiuses

Traffic rate: aerial speed 19.2Kps

Communication interface: RS232 or RS422

Data delay:＜15ms representative value (sending out platform TXD forward position occurs receiving the time that platform RXD forward position occurs)

Antenna height: 20～30 meters

Omnidirectional antenna gain 〉=6～8dB

Working environment: temperature: be better than-30～+ 60 ℃ humidity: 95%@35 ℃

Radio station performance: the relevant requirements that conforms to country 90 serial radio station

Channel bit error rate :≤1X10-5

B, receiver generally require:

Frequency stability: 1.5PPm

The intermodulation anti-interference :≤-70dB

Data sensitivity:＜-108dBm (BER 1X10-5)

C, indicator transmitter

Frequency stability: 1.5PPm

The neighboring trace radiation＜-70dBc

Modulation system:

Transmitter attack time≤3ms

Start when sending out: data directly start and are provided with and start line (RTS) double starting

3. control and demonstration index

LCD or LED point matrix display panel is set, realizes that character shows and Chinese character shows indication, the 4X4 keyboard is set as the control operation button.The point matrix display panel can show that Chinese character informations such as receiving message, message send the three kinds of methods that adopt: the one, utilize keyboard input national standard region-position code; The 2nd, directly call alarm communication message commonly used (can by PC editor, storage) in the slave; The 3rd, can connect PC and edit transmission.Terminal available PC computing machine is simultaneously done control and display device.Corresponding interface output is arranged, when needing can with people's air defense command post's electronic system data fusion after show.

The composition of terminal device hardware terminal equipment of the present invention comprises following a few part: Transmit-Receive Unit, signal processing unit, secret unit, communications processor element, terminal interface unit, alarm signal generator, alarm signal driving, warning horn interface, alarm detection etc.

Fixing terminal: the categories within police force knob only is set, finishes the manual activation of various warning informations;

Vehicle-mounted terminal: the categories within police force knob is set, finishes the manual activation of various warning informations; The LCD display board is set, realizes that character shows and Chinese character shows indication, the 4X4 keyboard is set as the control operation button.

Webmaster terminal: the categories within police force knob is set, finishes the manual activation of various warning informations; The LCD display board is set, realizes that character shows and Chinese character shows indication, the 4X4 keyboard is set as the control operation button.

Shi Jiduan machine: the categories within police force knob is set, finishes the manual activation of various warning informations; The GPS module is set simultaneously carries out the time reference calibration.

LED terminal: LED point matrix display panel is set, realizes that character shows and Chinese character shows indication, the 4X4 keyboard is set as the control operation button.

Hand-held terminal: the LCD display board is set, realizes that character shows and Chinese character shows indication.

Webmaster computing machine 1 device has network management system software, the network management system Soft Roll includes network management software and the system management software.Every requirement that the network management software uses alarm communication according to the urban area scale is converted into every technical parameter of system's operation, as being user's terminal distribution time interval resource, by certain structure with the terminal networking and keep effective operation of network; The system management software comprises modules such as alarm granting instruction input, alarm geographical information management, warning information processing, system operation management, file administration.

Terminal is coordinated hardware effort by system controlling software, comprise system synchronization, time slot management, demonstration and control, alarm granting instruction management, the transmission of terminal status report, free text harmony sign indicating number words and reception, relaying are transmitted and are managed, anti-interference coding/parts such as decoding.

Bunch head is center, the region terminal in the terminal wireless coverage, be the transmission center and the administrative center of subnet, simultaneously also as routing node, its task can by in the subnet arbitrarily terminal take over, bunch head can by fixing terminal, webmaster terminal, the time cardinal extremity machine or LED terminal bear; The webmaster terminal be to the whole network plan, the terminal initiation parameter injects, the terminal of network dynamic monitoring, can be assemblied in arbitrary unit in the net, the network control control can according to priority be transferred downwards successively.Except that hand-held terminal, other terminal all can carry out the transmitting-receiving of various information, and hand-held terminal receives only the net internal information.Native system specifies one of them terminal (not comprising hand-held terminal) as time reference in all net members, and other member's clock is synchronous with it, and time reference can be specified arbitrarily in network.

The tunnel warning information transmission of blind area of the present invention alarm communication system adopts 3 kinds of modes to finish the transmission of warning information in the tunnel.

First kind is wired leaky coaxial cable communication mode:

Tunnel warning information transmission can use the binary channels tunnel repeater to finish, and presses different mining two kinds of forms of repeater in hole repeater and the hole of tunnel length.The warning information that it receives antenna carries out radio frequency by the hole repeater and directly amplifies, be sent in the tunnel or repeater in the hole through coaxial leaky cable (LCX) then, make alarm terminal in the tunnel can normally receive signal from TDMA loop outside the tunnel, simultaneously coaxial leaky cable (LCX) receives from tunnel alarm terminal signal, through the hole () repeater in the hole in carry out radio frequency directly amplification deliver to the hole outside antenna and launch.As shown in Figure 6.When leaky coaxial cable has very big loss to signal,,, can add relay amplifier in order to compensate the decay of leaky cable to signal when alarm mounting points during greater than 2Km～3Km.

Second kind is less radio-frequency directional transmissions communication mode:

To the tunnel of leaky coaxial cable difficulty is installed, adopt less radio-frequency directional transmissions communication mode.

In the tunnel, electric wave has been subjected to stopping of barrier in transmission course, thereby has formed a large amount of signal strength dead bands, makes radio communication normally not carry out, and at this moment lays microwave directional relay equipment, as shown in Figure 7.

The third is wired RS485 communication interface transport communication mode:

The radio-frequency apparatus of terminal part is installed in the hole, and the communication process of terminal partly is installed in cloth in the hole in and sets up an office, and by practical RS232/RS485 interconnecting device radio-frequency apparatus and communication processing equipment use balancing twisted-pair line is connected, as shown in Figure 8.

The people's air defense blindage warning information transmission of blind area of the present invention alarm communication system adopts 2 kinds of modes to finish the transmission of warning information in anti-blindage.

First kind is wired RS485 communication interface transport communication mode:

The channel device of alarm terminal is contained in outside the blindage, is connected with alarm terminal control module in the blindage, finish information transfer function, shown in figure institute 9 by cable.

Second kind is the remote connected mode of optical fiber:

Adopt the remote connected mode of optical fiber as shown in figure 10.

Underground sales field/building chamber warning information the transmission of blind area of the present invention alarm communication system is that the channel device with the alarm terminal is contained in the building top, the alarm terminal control module indoor by cable and underground sales field and building is connected, finish underground sales field/building chamber warning information transmission, as shown in figure 11.

Of the present inventionly a kind ofly being used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, is to carry out the mutual information transmission between each terminal in the system on the basis when being based upon system, and it comprises:

The treatment step of time reference;

Reception information and the step of being handled;

The step of transmission information;

Wherein, be to be divided into time shaft one by one that length is the time unit of predetermined some minutes during system, and should the time unit as the TDMA round-robin cycle, each the time unit be divided into several time frames again, each time frame is divided into several slots again, by time slot, time frame, the time unit combination the time carrier of compound random series construction system TDMA net, system gives each terminal time slot that shares out the work, each terminal is emission information in distributing to the time slot of oneself, then receives the information of other terminal distribution in other time slot.

The signal processing flow of Physical layer of the present invention as shown in Figure 5.Transmit information, comprise the synchronous mark of 8bit and data division two parts of 128bit in their each time slots 128bit information source information to be sent through the formatting messages and the free text of coding of Error Correction of Coding.Information source The data (16,4) and (31,15) RS error correcting code, satisfy the requirement of the high reliability of Information sign (timeslot number, user number, type of message): receiving end, received signal are finally exported the digital signal of 128bit through demodulation, RS decoding.

System of the present invention works with the all-to-all broadcast pattern.For the terminal that disperses and the comprehensive concatenation ability that ensures maximum quantity of communicating by letter of mobile terminal.TDMA is divided into time slot to the time, and each time slot is assigned to each terminal and is used for diffusing information according to the needs of terminal, and other terminal this moment " answer ', this information is broadcasted photos and sending messages up to taking turns to them.This mode, information can send numerous purpose terminals simultaneously to.As a multiplexer, system provides sharing of effective available bandwidth.On the other hand, system resembles a LAN (Local Area Network) again, and it can be for providing link between any terminal in the network, and tightly be not be in two not on the same group terminal single-pathway is provided.The software of each terminal can carry out necessary flow control, to ensure the circulation of all information.

When network normally moves, moment safeguards system synchronous, so that make each terminal synchronous coordination work in the system.In system, when setting up system by a designated terminal as network time benchmark (NTR), all other system's terminals all will obtain and when keeping system.

During zero when being system during system's regulation midnight every day Beijing time zero, be to repeat in the cycle, promptly arrive midnight of next day when zero, get back to again during system when zero with 24 hours.In one day 24 hours, during system with the time unit, time frame and time slot counting.In the network each terminal constantly and network time benchmark (NTR:Net Time Reference) terminal exchange clocking information to keep the unitarity of the whole network network work.

Foundation during the systematic unity system realizes by software approach: time reference terminal (NTR) sends RTT (Round Trip Timing) message, makes the synchronously smart of the time that obtains between the networking terminal.

Referring to shown in Figure 12, the treatment step of described time reference comprises:

A1. initial network login;

A2. synchronously thick;

A3. synchronously thin;

A4. keep synchronously.

The initial network login: each terminal is when login networks in the system, search and receive effective network time calibration information, by the terminal that is assigned as network benchmark (NTR) transmitting time calibration message in each time slot, and remaining terminal scans this calibration message, if receive this of message, then think the network entry success time calibration.

It is synchronously thick: after the network terminal receives message time calibration, adjust oneself clock according to the calibration message content, system time that can initial setting network terminal is the time of time calibration in the message that receives to add initial delay time, stabilization time and message length time.

Synchronously thin: as carefully to be on thick synchronous basis, to add the various correction times that comprise data processing time synchronously.This will calculate according to the hardware configuration and the CPU processing time of reality.

Keep synchronously: reach thin synchronously after, for keep with system time synchronously, the network terminal is the performance and the constantly thin synchronizing process of Looking Out Time constantly, and when the time error had surpassed the scope of regulation, the automatic disable message transmission of network terminal also started thin synchronizing process.

In system, when setting up system, when all member of other system terminals all will obtain and keep high-precision system by designated member's terminal as network time benchmark (NTR).

During zero when being system during system's regulation midnight every day Beijing time zero, be to repeat in the cycle, promptly arrive midnight of next day when zero, get back to again during system when zero with 24 hours.In one day 24 hours, during system with the time unit, time frame and time slot counting.Each time frame distributes 1 fixing time slot position to be launched into network information by the NTR terminal.Before NTR begins emission and goes into network information, by the GPS calibration terminal time, the NTR terminal the time, the minute, second value convert to when corresponding unit number, the time frame number and timeslot number, its conversion relation is as follows:

If: time=H, branch=D, second=S, then

Timeslot number=(50S/500) _Surplus

The time frame number={ [6D+ (50S/500) _Whole]/60} _Surplus

Time unit number=6H+{[6D+ (50S/500) is whole]/60} is whole.

Along with the time slot counting, the NTR terminal just launches network information on 1 time slot that every frame distributes afterwards.The networking message content comprise the current time correspondence time unit number, the time frame number and timeslot number.When the interior member's terminal of the logical distance of NTR terminal at first networks the acquisition system.In case obtain synchronously, terminal and all designated emissions on the distribution time slot of oneself as the first terminal of net of being designated as initial networking in the interior member's terminal of the logical distance of these NTR terminals go into network information.Therefore, the NTR terminal is logical also can be received into network information apart from outer terminal, when obtaining system.

Referring to shown in Figure 13, Figure 13 is a time reference information transmission flow.

Equipment is added some points after the work, carry out initial work earlier, search for and judged whether effective network time information then, when being system, when there not being system constantly, by assign the time cardinal extremity machine in " network time benchmark (NTR) " module produce network time reference data and launch by wireless antenna, other non-NTR terminal, then only launch " time reference " solicited message, and wait for to receive by " network time benchmark (NTR) " module and produce the network time reference data, the time preserve " network time benchmark (NTR) " information of standard in the cardinal extremity machine.

Referring to shown in Figure 14, described reception information and the step of being handled comprise:

B1. received RF signal demodulation;

B2. channel data error correction decoding;

B3. receive source codec;

In radio-frequency antenna receives net during radiofrequency signal, at first received RF signal is carried out demodulation by " received RF signal demodulation " module, output signal is the bit bit data of regular length, these data are useful formatted data and the blended data that is used for the checking data of circuit Error Correction of Coding, this blended data is through " channel data error correction decoding " resume module, after removing redundant data and check errors position, export useful formatting messages data, i.e. NPG message data.This NPG message data decomposites each message field through " reception source codec " resume module, comprises contents such as sign, information note, routing table, message segment.

B4. judge whether to be a bunch head, if, just receive the encapsulation of forwards frame, change next step then, otherwise, next step directly entered;

By reading " sign ", interpretation receives the network responsibility of terminal, as is " bunch head ", then changes execution " receiving the forwards frame encapsulates " task over to, otherwise carries out follow-up interpretation;

Receive the encapsulation of forwards frame: when the reception terminal was " bunch head ", reception information needed the network responsibility according to oneself, was packaged into the forwards frame again after the revision routing table, and forwarded in the working time slot of oneself.Because " bunch head " also finishes functions such as warning, message reception simultaneously, so after finishing the encapsulation of forwards frame, also carry out follow-up interpretation;

Whether b5. judge to receive message is the network time reference data, if, carry out the treatment step of time reference, then change step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is the network time reference data, i.e. data during system, and data during system then change execution over to and " adjust " task when time reference Message Processing and Network Synchronization and system, otherwise carry out follow-up interpretation in this way;

Adjust when time reference Message Processing and Network Synchronization and system: when reception information is system during data, this module finish the terminal network entry, thick synchronously, thin synchronous and synchronous hold function;

Whether b6. judge to receive message is predefined alarm kind, if, carry out corresponding alarm and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B7. judge to receive whether message is message message, if, carry out the message Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is message message, and message message then changes execution " message Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

Message Message Processing and the encapsulation of ' return show ' frame ": when reception information is message message, read the message content in the message segment, and deliver to the LED screen of LED terminal or the LCD screen of other terminal carries out literary composition demonstration.Simultaneously, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " returns and show " frame data by wireless antenna and launch;

B8. judge to receive whether message is speech information, if, install phonological working pattern and speech information processing fully, then continue next step, otherwise, next step directly entered;

Explain by reading information, whether this reception message of interpretation is speech information, and speech information then changes execution " speech information is handled and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

Installing fully phonological working pattern and speech information handles: when reception information is speech message, puts terminal and work in speech pattern, according to the network slot resource, redistribute terminal working time slot number and timeslot number.Simultaneously, read the sound sign indicating number words data in the message segment, after the data voice of process terminal inside and simulated voice change-over circuit are varied to analogue voice signal with the data voice signal, amplify, send the speech sound equipment that people's ear can be heard by loudspeaker through audio frequency.

B9. finish.

Described step b6 comprises the steps:

B601. judge to receive message and whether be alert message in advance, if, carry out in advance alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, next step continued;

Explain by reading information, whether interpretation this receptions message be alert message in advance, and alert message in advance in this way then changes executions " alert message is handled with ' time show ' frame and encapsulated in advance " task over to, otherwise carries out follow-up interpretation;

Alert message is handled and the encapsulation of ' return and show ' frame in advance: when reception information during for alert message in advance, DAB combiner circuit by terminal inside produces the alarm sound signal in advance that meets the people's air defense standard, after the audio frequency amplification, send the alarm sound that people's ear can be heard by the audio frequency loudspeaker, simultaneously the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt, as showing " people's air defence directorate in Xiamen City's are informed: be to launch air raids alarm in advance now " etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

Whether b602. judge to receive message is emergent alarm message, if, carry out emergent alarm message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is emergent alarm message, and emergent alarm message then changes execution " emergent alarm message is handled and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

Emergent alarm message is handled and the encapsulation of ' return and show ' frame: when reception information during for alert message in advance, DAB combiner circuit by terminal inside produces the emergency alarm sound signal that meets the people's air defense standard, after the audio frequency amplification, send the alarm sound that people's ear can be heard by the audio frequency loudspeaker, simultaneously the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt, as showing " people's air defence directorate in Xiamen City's are informed: be emergency alarm now " etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B603. judge to receive whether message is typhoon warning message, if, carry out the typhoon warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is typhoon warning message, and typhoon warning message then changes execution " typhoon warning Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

Typhoon warning Message Processing and the encapsulation of ' return and show ' frame: when reception information is typhoon warning message, DAB combiner circuit by terminal inside produces typhoon warning voice suggestion sound, as " being typhoon warning now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be typhoon warning now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B604. judge to receive whether message is seismic sea wave warning message, if, carry out the seismic sea wave warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is seismic sea wave warning message, and seismic sea wave warning message in this way then changes execution " seismic sea wave warning Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation;

Seismic sea wave warning Message Processing and the encapsulation of ' return and show ' frame: when reception information is seismic sea wave warning message, DAB combiner circuit by terminal inside produces seismic sea wave warning voice suggestion sound, as " being seismic sea wave warning now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be seismic sea wave warning now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

Whether b605. judge to receive message is the flood control alert message, if, carry out the flood control alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is the flood control alert message, and the flood control alert message then changes execution " the flood control alert message is handled and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

The flood control alert message is handled and the encapsulation of ' return and show ' frame: when reception information is the flood control alert message, DAB combiner circuit by terminal inside produces flood control alarm voice suggestion sound, as " being the flood control alarm now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be the flood control alarm now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

Whether b606. judge to receive message is the flood discharge alert message, if, carry out the flood discharge alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is the flood discharge alert message, and the flood discharge alert message then changes execution " the flood discharge alert message is handled and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

The flood discharge alert message is handled and the encapsulation of ' return and show ' frame: when reception information is the flood discharge alert message, DAB combiner circuit by terminal inside produces flood discharge alarm voice suggestion sound, as " being the flood discharge alarm now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be the flood discharge alarm now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

Whether b607. judge to receive message is the rubble flow alert message, if, carry out the rubble flow alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is the rubble flow alert message, and the rubble flow alert message then changes execution " the rubble flow alert message is handled and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

The rubble flow alert message is handled and the encapsulation of ' return and show ' frame: when reception information is the rubble flow alert message, DAB combiner circuit by terminal inside produces rubble flow alarm voice suggestion sound, as " being the rubble flow alarm now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice prompt tone that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be the rubble flow alarm now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B608. judge to receive whether message is alarm of fire message, if, carry out the alarm of fire Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is alarm of fire message, and alarm of fire message in this way then changes execution " alarm of fire Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation;

Alarm of fire Message Processing and the encapsulation of ' return and show ' frame: when reception information is alarm of fire message, DAB combiner circuit by terminal inside produces alarm of fire voice suggestion sound, as " being alarm of fire now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be alarm of fire now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B609. judge to receive whether message is earthquake warning message, if, carry out the earthquake warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is earthquake warning message, and earthquake warning message then changes execution " earthquake warning Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

Earthquake warning Message Processing and the encapsulation of ' return and show ' frame: when reception information is earthquake warning message, DAB combiner circuit by terminal inside produces earthquake warning voice suggestion sound, as " being earthquake warning now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be earthquake warning now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B610. judge to receive whether message is chemical accident message, if, carry out the chemical accident Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is chemical accident message, and chemical accident message then changes execution " chemical accident Message Processing and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation in this way;

The chemical accident alert message is handled and the encapsulation of ' return and show ' frame: when reception information is the chemical accident alert message, DAB combiner circuit by terminal inside produces chemical accident alarm voice suggestion sound, as " being the chemical accident alarm now; ask everybody to withdraw in order " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, " be the chemical accident alarm now, please everybody withdraw in order as showing." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B611. judge whether receive message is to remove empty feelings message, if, remove empty feelings Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is to remove empty feelings message, removes empty feelings message in this way, then changes execution " removing empty feelings Message Processing encapsulates with ' return and show ' frame " task over to, otherwise carries out follow-up interpretation;

Remove empty feelings Message Processing and the encapsulation of ' return show ' frame: when reception information when removing empty feelings message, DAB combiner circuit by terminal inside produces the empty feelings alarm of the releasing sound signal that meets the people's air defense standard, after the audio frequency amplification, send the alarm sound that people's ear can be heard by the audio frequency loudspeaker, simultaneously the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt, as showing " people's air defence directorate in Xiamen City's are informed: be allclear now " etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B612. judge whether receive message is to remove the condition of a disaster message, if, remove the condition of a disaster Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Explain by reading information, whether this reception message of interpretation is to remove the condition of a disaster message, removes the condition of a disaster message in this way, then changes execution " releasing the condition of a disaster Message Processing and the encapsulation of ' return and show ' frame " module design task over to, otherwise carries out follow-up interpretation;

Remove the condition of a disaster Message Processing and the encapsulation of ' return and show ' frame: when reception information is when removing the condition of a disaster message, DAB combiner circuit by terminal inside produces releasing the condition of a disaster voice suggestion sound, as " people's air defence directorate in Xiamen City's are informed: be to remove the condition of a disaster alarm now " sound signal, after the audio frequency amplification, send the alarm voice Tip Sound that people's ear can be heard by the audio frequency loudspeaker, the LCD screen of the LED of LED terminal screen or other terminal carries out corresponding text prompt simultaneously, as showing that " people's air defence directorate in Xiamen City's are informed: be to remove the condition of a disaster alarm now." etc.After terminal is finished effective alarm sound and warning text prompt, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch;

B613. judge whether receive message is the message of trying, if the Message Processing of trying is shown the frame encapsulation with returning, and then changes step b9, otherwise, continue next step;

Explain by reading information, whether this reception message of interpretation is the message of trying, and the message of trying in this way then changes execution " Message Processing of trying and the encapsulation of ' return and show ' frame " task over to, otherwise carries out follow-up interpretation;

The Message Processing of trying and the encapsulation of ' return show ' frame: when reception information when trying message, DAB combiner circuit by terminal inside produces the air raid siren sound signal that meets the people's air defense standard, but this signal is not delivered to loudspeaker and is rung, only be to obtain corresponding executed result, but the LCD of the LED of LED terminal screen or other terminal screen carries out corresponding text prompt, as showing " people's air defence directorate in Xiamen City's are informed: be that air raid alarm is tried now " etc.After terminal is finished corresponding executing the task, except that hand-held terminal, other kind terminal is inserted terminal identity and execution result in " return and show " frame structure, when network time is recycled to the working time slot of oneself, after coding, modulation, will " return and show " frame data by wireless antenna and launch.

Referring to shown in Figure 15, the step of described transmission information comprises:

C1. terminal initialization;

C2. judge when whether terminal has system,, continue next step if having, otherwise, get time reference claim frame data, change step c12 then; Because the normal operation of whole network is to be based upon on the synchronous foundation, when system's terminal must have unified system, therefore, when terminal detects the system of oneself at first in real time;

C3. terminal state and running parameter scanning;

C4. judge whether the scanning of terminal state and running parameter changes, if, continue next step, otherwise, step c3 returned;

C5. judge whether to be hand-held terminal, if, change step c15, otherwise, next step continued;

C6. judge whether to be this terminal working time slot, if, continue next step, otherwise, step c15 changeed;

C7. judge whether to be a bunch head, if change step c11,, otherwise, continue next step;

C8. judge whether into the time cardinal extremity machine, if, get the time reference data and be packaged into time reference frame, then change step c12, otherwise, continue next step;

C9. judge whether the work at present pattern is speech pattern, if, get sound sign indicating number words Frame, then change step c12, otherwise, next step continued;

C10. judge whether to remain to be beamed back and show frame data, if, fetch and show frame data, then change step c12, otherwise, get terminal status frames data,, then change step c12;

C11. judged whether the transmitted frame data, if, get and receive the forwards frame data, then continue next step, otherwise, get bunch head status frame data, continue next step;

C12. send the data channel Error Correction of Coding;

C13. send the modulation of data radiofrequency signal;

C14. radiofrequency signal is delivered to emitting antenna;

C15. finish.

The foregoing description only is used for further specifying a kind of communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma of the present invention; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims (9)

1. one kind is used to send the communication system of empty feelings the condition of a disaster early warning information based on tdma, it is characterized in that: comprising:

A webmaster computing machine, this webmaster computing machine are used for that warning information is handled and network operation management, to network transmission warning message and receive return information;

First terminal that has been predetermined to be the webmaster effect, this first terminal contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is connected with the webmaster computing machine is wired or wireless, is used for receiving and dispatching warning information and realizes the alarm processing;

Second terminal that is predetermined to be the effect of time-out base, this second terminal contains wireless transmit/receive units, signal processing unit, alarm processing unit and GPS unit, and it is used for to network transmitting time reference information, and receiving alarm information and realization alarm are handled;

A plurality of the 3rd terminals that have been predetermined to be bunch head effect, the 3rd terminal contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is used for receiving and dispatching warning information and realizes the alarm processing;

A plurality of Tetrapolar machines that have been predetermined to be terminal warning effect, this Tetrapolar machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, it is used for receiving alarm information and realize that alarm handles, and can be set the back in authority and rise and substitute first terminal or second terminal or second terminal;

A plurality of five terminal machines that in signal blind zone, play terminal warning effect that are predetermined to be, this five terminal machine contains wireless transmit/receive units, signal processing unit and alarm processing unit, and it is used for receiving alarm information and realize that alarm handles;

A plurality of blind area communication systems that are used for realizing signal of communication transmission in the blind area;

Forming one by one the 3rd terminal and several Tetrapolar machines covers the subnet of default subregion or forms a subnet that covers default subregion by one the 3rd terminal, several Tetrapolar machines, several blind area communication systems and several five terminal machines; In this subnet, the 3rd terminal signal forwarding that subnet is outer is given each Tetrapolar machine in the subnet or is also comprised the five terminal machine that is transmitted to correspondence by the blind area communication system, and the return signal of Tetrapolar machine in the subnet or five terminal machine is forwarded to outside this subnet;

The described webmaster computing machine and first terminal are located in any one subnet of all-ones subnet;

Described second terminal is located in any one subnet of all-ones subnet;

Form a major network that covers default big zone by webmaster computing machine, first terminal and all the 3rd terminals; In major network, the webmaster computing machine sends signal by first terminal to the 3rd contiguous terminal, and each the 3rd terminal is respectively to the 3rd contiguous terminal and the subnet forward signal at self place, and gives the 3rd contiguous terminal with the signal forwarding in the subnet.

2. the communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma according to claim 1, it is characterized in that: described blind area alarm communication system comprises tunnel warning information transfer device, this tunnel warning information transfer device comprises the hole repeater that is installed in the tunnel face and is installed in repeater in the hole in the tunnel, is connected by coaxial leaky cable between the repeater in hole repeater and the hole.

3. the communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma according to claim 1, it is characterized in that: described blind area alarm communication system comprises tunnel warning information transfer device, and this tunnel warning information transfer device comprises the microwave directional relay device that is installed in the tunnel face and is installed in microwave directional relay device in the tunnel.

4. the communication system that is used to send empty feelings the condition of a disaster early warning information based on tdma according to claim 1, it is characterized in that: described blind area alarm communication system comprises tunnel warning information transfer device, this tunnel warning information transfer device comprises the high-speed digital transmission radio station that is installed in the tunnel face, is connected by the balancing twisted-pair line between high-speed digital transmission radio station and the five terminal machine.

5. one kind is used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, and it is characterized in that: be to carry out the mutual information transmission between each terminal in the system on the basis when being based upon system, it comprises:

The treatment step of time reference;

Reception information and the step of being handled;

The step of transmission information;

Wherein, be to be divided into time shaft one by one that length is the time unit of predetermined some minutes during system, and should the time unit as the TDMA round-robin cycle, each the time unit be divided into several time frames again, each time frame is divided into several slots again, by time slot, time frame, the time unit combination the time carrier of compound random series construction system TDMA net, system gives each terminal time slot that shares out the work, each terminal is emission information in distributing to the time slot of oneself, then receives the information of other terminal distribution in other time slot.

6. according to claim 5ly be used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, it is characterized in that: the treatment step of described time reference comprises:

A1. initial network login;

A2. synchronously thick;

A3. synchronously thin;

A4. keep synchronously.

7. according to claim 5ly be used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, it is characterized in that: described reception information and the step of being handled comprise:

B1. received RF signal demodulation;

B2. channel data error correction decoding;

B3. receive source codec;

B4. judge whether to be a bunch head, if, just receive the encapsulation of forwards frame, change next step then, otherwise, next step directly entered;

Whether b5. judge to receive message is the network time reference data, if, carry out the treatment step of time reference, then change step b9, otherwise, continue next step;

Whether b6. judge to receive message is predefined alarm kind, if, carry out corresponding alarm and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B7. judge to receive whether message is message message, if, carry out the message Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B8. judge to receive whether message is speech information, if, install phonological working pattern and speech information processing fully, then continue next step, otherwise, next step directly entered;

B9. finish.

8. according to claim 7ly be used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, it is characterized in that: described step b 6 comprises the steps:

B601. judge to receive message and whether be alert message in advance, if, carry out in advance alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, next step continued;

Whether b602. judge to receive message is emergent alarm message, if, carry out emergent alarm message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B603. judge to receive whether message is typhoon warning message, if, carry out the typhoon warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B604. judge to receive whether message is seismic sea wave warning message, if, carry out the seismic sea wave warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

Whether b605. judge to receive message is the flood control alert message, if, carry out the flood control alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Whether b606. judge to receive message is the flood discharge alert message, if, carry out the flood discharge alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

Whether b607. judge to receive message is the rubble flow alert message, if, carry out the rubble flow alert message and handle and return and show the frame encapsulation, then change step b9, otherwise, continue next step;

B608. judge to receive whether message is alarm of fire message, if, carry out the alarm of fire Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B609. judge to receive whether message is earthquake warning message, if, carry out the earthquake warning Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B610. judge to receive whether message is chemical accident message, if, carry out the chemical accident Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B611. judge whether receive message is to remove empty feelings message, if, remove empty feelings Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B612. judge whether receive message is to remove the condition of a disaster message, if, remove the condition of a disaster Message Processing and show the frame encapsulation with returning, then change step b9, otherwise, next step continued;

B613. judge whether receive message is the message of trying, if the Message Processing of trying is shown the frame encapsulation with returning, and then changes step b9, otherwise, continue next step.

9. according to claim 5ly be used to send the communication means of the communication system of empty feelings the condition of a disaster early warning information based on tdma, it is characterized in that: the step of described transmission information comprises:

C1. terminal initialization;

C2. judge when whether terminal has system,, continue next step if having, otherwise, get time reference claim frame data, change step c12 then;

C3. terminal state and running parameter scanning;

C4. judge whether the scanning of terminal state and running parameter changes, if, continue next step, otherwise, step c3 returned;

C5. judge whether to be hand-held terminal, if, change step c15, otherwise, next step continued;

C6. judge whether to be this terminal working time slot, if, continue next step, otherwise, step c15 changeed;

C7. judge whether to be a bunch head, if change step c11,, otherwise, continue next step;

C8. judge whether into the time cardinal extremity machine, if, get the time reference data and be packaged into time reference frame, then change step c12, otherwise, continue next step;

C9. judge whether the work at present pattern is speech pattern, if, get sound sign indicating number words Frame, then change step c12, otherwise, next step continued;

C10. judge whether to remain to be beamed back and show frame data, if, fetch and show frame data, then change step c12, otherwise, get terminal status frames data,, then change step c12;

C11. judged whether the transmitted frame data, if, get and receive the forwards frame data, then continue next step, otherwise, get bunch head status frame data, continue next step;

C12. send the data channel Error Correction of Coding;

C13. send the modulation of data radiofrequency signal;

C14. radiofrequency signal is delivered to emitting antenna;

C15. finish.

Images