CN206433189U - MANET Tactical Communications Terminal based on LoRa technologies - Google Patents

Abstract

The utility model is related to self-organized network communication technical field, more particularly to a kind of MANET Tactical Communications Terminal based on LoRa technologies.It includes reinforced portable main frame, reinforces touch screen displays and antenna, provided with mainboard, main LoRa modules, from LoRa modules, big dipper module, power module and display control module in the reinforced portable main frame, mainboard cooperates with circuit to be connected with main LoRa modules, from LoRa modules by radio station, it is connected simultaneously by TTL change-over circuits with big dipper module, display control module is connected with mainboard；The antenna includes LoRa antennas and Beidou antenna, and LoRa antennas are connected with main LoRa modules, from LoRa modules, and Beidou antenna is connected with big dipper module；The reinforcing touch screen displays include drive module, display panel and the capacitance touch screen on display panel.The utility model is easy to carry, can rapid build wireless network, with very big military benefit and economic benefit.

Description

MANET Tactical Communications Terminal based on LoRa technologies

Technical field

The utility model is related to self-organized network communication technical field, more particularly to a kind of MANET tactics based on LoRa technologies Communication terminal.

Background technology

The mobile radio networks that presently, there are have two kinds：A kind of is the network based on network infrastructure, this net Luo Doushiyou centers, typical case's application is mobile cellular net and WLAN (WLAN).There is following limitation in this network： 1st, position of host machine is substantially stationary in fixed network；2nd, fixed network structure is more complicated；3rd, wlan network is single-hop networks；4th, move All communications of dynamic terminal will be carried out by access point, cause the waste of network bandwidth resources；It is existing in the case of there is no outer net Even if the LAN constituted after being connected by mobile terminal by wireless routing, they can not also carry out data transmission each other； 5th, in particular surroundings, emergency in use, such as army's rapid deployment and propulsion on battlefield, rescue after earthquake, floods etc., nothing Method meets rapid build wireless network, transmits the purpose of command data.Second of mobile radio networks is without network foundation The network of facility, commonly referred to as self-organization network, i.e. Ad hoc.This network because with the network facilities need not be set up, can be fast The features such as speed is deployed, survivability is strong, the one preferred technique communicated as digital battlefield.

Wireless Ad Hoc Networks are mainly by the WiFi for the 2.4GHz that can constitute LAN, bluetooth, Zigbee etc. and can group 2G, 3G, 4G into wide area network etc., these ad hoc networks all have the shortcomings that remote and low-power consumption can not have concurrently.And the later stage The LPWAN technologies of appearance can take into account remote and low power capabilities, therefore be widely used in telecommunication field.LoRa technologies It is one kind of LPWAN technologies, is the overlength distance wireless transmission scheme based on spread spectrum, is mainly transported in global free frequency range OK, such as 433,868,915MHz.The current integrated product of country's 433MHz wireless modules and application, most of data pass for transparent transmission It is defeated, and it is transparent application data that transmitting procedure, which do not have to transmit on corresponding agreement, radio frequency chip, therefore do not transmitting In the case of agreement, it is impossible to voluntarily building network.What is transmitted on serial ports is transparent data stream, it is impossible to transmission instruction control radio frequency Chip, realizes the operations such as frequency error factor, channel parameter adjustment, and transparent transmission transmission bandwidth is relatively low, and system delay is larger.Current 433MHz wireless module products, its control operation and host-host protocol must give application layer completion, it is impossible to ensure the safety of network Property and availability.

The content of the invention

To solve the above problems, the utility model provides a kind of MANET Tactical Communications Terminal based on LoRa technologies, The terminal in special battlefield surroundings or in emergency circumstances can build MANET Tactics-level network using LoRa wireless technologys, be User brings convenience.

The technical solution of the utility model is as follows：

A kind of MANET Tactical Communications Terminal based on LoRa technologies, including reinforced portable main frame, reinforcing touch screen are shown Device and antenna, reinforced portable main frame are connected by data wire with reinforcing touch screen displays；The reinforced portable main frame includes Shell and mainboard in shell, main LoRa modules, from LoRa modules, big dipper module, power module and display control module, Mainboard cooperates with circuit to be connected with main LoRa modules, from LoRa modules by radio station, while passing through TTL change-over circuits and big dipper module Connection, display control module is connected with mainboard；The guidance panel and Peripheral Interface being connected with mainboard are additionally provided with shell；The day Line includes LoRa antennas and Beidou antenna, and LoRa antennas are connected with main LoRa modules, from LoRa modules, Beidou antenna and Big Dipper mould Block is connected；The reinforcing touch screen displays include drive module, display panel and the capacitance touch screen on display panel, drive Dynamic model block is connected by data wire with the display control module in reinforced portable main frame, and drive module is connected with display panel.

The utility model sets two LoRa modules in main frame, wherein main LoRa modules are using data transparent transmission, soft The working method of part encryption, control signal is transmitted to determine frequency mode, and data-signal is transmitted from LoRa modules with frequency-hopping mode.LoRa Module has software FEC forward error correction algorithms, and its code efficiency is higher, and error correcting capability is strong, in the case of bursty interference, can lead It is dynamic to correct disturbed packet, greatly improve reliability and transmission range.

Further, the radio station collaboration circuit includes single-chip microcomputer and TTL turns USB chips；The PA2 pin of single-chip microcomputer, PA3 pin with TTL turns the RXD pin of USB chips, the connection of TXD pin, and the TTL signal that single-chip microcomputer is sent is converted to usb signal through it, and TTL turns USB cores Piece is connected by usb bus with mainboard, the communication for realizing single-chip microcomputer and mainboard；PA9-PA10 pin, the PB5-PB7 of single-chip microcomputer Pin is connected with main LoRa modules, and the PB10-PB14 pin of single-chip microcomputer are connected with from LoRa modules, for realizing to two LoRa modules Control on Communication.Main LoRa modules and the collaborative work from LoRa modules can be realized using radio station collaboration circuit, control letter is realized Number determine to keep pouring in send with the transmission of the frequency hopping of data-signal, finally realize the working method of full duplex.

Further, the power module turns 5V circuits, 5V and turns 3.3V circuits and charging circuit including polymer battery, 12V, Polymer battery connects charging circuit and is connected by power management module with mainboard.Power module can be electricity using charging circuit Pond is charged, and provides operating voltage for radio station collaboration circuit.

It is preferred that, the data wire two ends are connected using Aviation Connector with reinforced portable main frame, reinforcing touch screen displays, Data wire then uses the core control line of KVVRP double layer screens 16, effectively improves the reliability of data transfer.

It is preferred that, the LoRa antennas are 433MHz antennas.

Further, reinforce in touch screen displays and be additionally provided with authentication module, the module uses RC522 radio-frequency modules, lead to TTL modular converters and drive module is crossed to be connected with reinforced portable main frame.The mode of the general brush smart card of user completes identity and recognized Card and login software platform, improve the security of network.

Mainboard is provided with outside central processing unit and built-in storage, mainboard and is also associated with external memory, and built-in storage uses 4GB 1600Mhz internal memories, external memory uses 64GB SSD3.0 solid-state memories, is mainly used in storing offline map datum and corresponding Software environment.

The utility model also includes audio frequency apparatus, and the audio frequency apparatus is connected by Peripheral Interface with mainboard.

Peripheral Interface on host housing mainly has network interface, COBBAIF and USB interface, and network interface is used to set Standby access cable network, COBBAIF is used to connect audio frequency apparatus, and USB interface is used to realize data exporting.Host housing On guidance panel include all kinds of shift knobs, SR, electricity display screen, radio station status indicator lamp, Big Dipper state instruction Lamp.

The utility model has two kinds of use patterns, and one kind is that individual soldier bears type, and now the audio frequency apparatus is headset.Communication Terminal is born by an ergonomics knapsack, is main frame fixed bit on rear side of ergonomics knapsack body, and body is left front Side is display fixed bit, and knapsack forward right side deposits the auxiliary devices such as charger, preliminary data line, reserve battery.One kind is car Load type, the audio frequency apparatus uses fixed sound equipment and microphone, and sound equipment and microphone are fixed on Che Bishang, and main frame and display screen pass through Fixed seat is installed on Che Bishang.LoRa antennas improve data transfer during mobility using 433MHz sucker antennas are lengthened Stability.The voice signal that microphone is collected carries out sample code and compression, launches after LoRa resume modules through antenna Go out；Antenna also receives the speech data that other terminals are sent simultaneously, through interface conversion protocol translation after LoRa resume modules The data that can recognize that into application software, application software is carried out to audio signal after the processing such as decoding amplification, and feeding playback equipment turns It is melted into sound.

The utility model can set up communication network automatically with performing the same category of device of same air interface agreement.In specific frequency The LoRa signal coverages of rate, device power-up enters after software platform, is automatically performed network connection；When equipment is blind from LoRa signals Area automatically can quickly recover network connection after entering the area of coverage；Equipment can automatically switch to network signal it is relatively good close on end End.By setting radio station to cooperate with circuit, separate unit terminal can use the full duplex of each terminal in built-in two LoRa modules realization net Formula voice communications versus data communications, or it is used as the signal transmission trunking node of other same categories of device.By setting big dipper module and coordinating The offline digital maps of terminal memory memory storage, user can obtain current geographic coordinate information in real time in software platform, and Coordinate position is sent to software platform service end in real time, is easy to service end to grasp the whole network end coordinates situation and optimization route pass System.Software platform has safe, difficulty of reproduction by the way of smart card hardware certification compared to conventional cipher authentication mode Big advantage.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is internal theory of constitution block diagram of the present utility model；

Fig. 3 is radio station collaboration circuit theory diagrams；

Fig. 4 is that 12V turns 5V circuit diagrams；

Fig. 5 is that 5V turns 3.3V circuit diagrams；

Fig. 6 is the utility model terminal interface schematic diagram；

Fig. 7 is the schematic diagram of the utility model application model one；

Fig. 8 is the schematic diagram of the utility model application model two；

Fig. 9 is the utility model MANET schematic diagram；

In figure, 1, reinforced portable main frame, 2, guidance panel, 3,433MHz antennas, 4, Beidou antenna, 5, audio frequency apparatus, 6th, reinforce touch screen displays, 7, capacitance touch screen, 8, smart card swipe the card panel, 9, ergonomics knapsack, 10, headset, 11, car Wall, 12, sound equipment, 13, microphone, 14, mainboard, 15, built-in storage, 16, central processing unit, 17, external memory, 18, display control Module, 19, power management module, 20, polymer battery, 21, charging circuit, 22, network interface, 23, USB interface, 24, audio Interface, 25, main LoRa modules, 26, from LoRa modules, 27, big dipper module, 28, drive module, 29, display panel, 30, TTL turns Change the mold block, 31, authentication module.

Embodiment

The utility model is described in detail below in conjunction with the accompanying drawings.

A kind of MANET Tactical Communications Terminal based on LoRa technologies, as shown in figure 1, including reinforced portable main frame 1, adding Gu touch screen displays 6, audio frequency apparatus 5 and antenna, reinforced portable main frame 1 are connected by data wire with reinforcing touch screen displays 6, Data wire uses the core control line of KVVRP double layer screens 16, and two ends are attached using the core Aviation Connector of WS28 types 16 with equipment.Such as Shown in Fig. 2, the reinforced portable main frame 1 includes shell and mainboard 14 in shell, main LoRa modules 25, from LoRa moulds Central processing unit 16 (CPU) and internal memory are embedded with block 26, big dipper module 27, power module and display control module 18, mainboard 14 Reservoir 15, while being also associated with an external memory 17.Built-in storage 15 uses 4GB 1600Mhz internal memories, and external memory 17 is used 64GB SSD3.0 solid-state memories, are mainly used in storing offline map datum and corresponding software environment.Mainboard 14 is assisted by radio station It is connected, while being connected by TTL change-over circuits with big dipper module 27, shows with main LoRa modules 25, from LoRa modules 26 with circuit Show that control module 18 is connected with mainboard 14.The guidance panel 2 and some Peripheral Interfaces being connected with mainboard, peripheral hardware are additionally provided with shell Interface, which has, can set all kinds of shift knobs, reset to press on network interface 22, USB interface 23, COBBAIF 24, guidance panel 2 Button, electricity display screen, radio station status indicator lamp, Big Dipper status indicator lamp.Audio frequency apparatus 5 can be moveable headset, also may be used To be fixed sound equipment and microphone, audio frequency apparatus 5 is connected by COBBAIF 24 with mainboard 14.The antenna includes two 433MHz antennas 3 and a Beidou antenna 4,433MHz antennas 3 are connected with main LoRa modules, from LoRa modules, Beidou antenna 4 with Big dipper module 27 is connected.The main LoRa modules 25 and from LoRa modules 26 using SEMTECH companies SX1278 radio frequency chips Wireless serial module (UART), using data transparent transmission mode, the working method of software cryptography, transmission power is 1W, work In 410-441MHz frequency ranges.Main LoRa modules mainly transmit control signal to determine frequency mode, from LoRa modules then with frequency-hopping mode Transmit data-signal.The big dipper module uses U26-H82BD modules, passes through Transistor-Transistor Logic level signal and main-machine communication.

As shown in figure 3, the radio station collaboration circuit turns USB chips U1 including single-chip microcomputer U3A, U3B and TTL；Single-chip microcomputer U3A PA2 pin, PA3 pin turn USB chips U1 RXD pin, TXD pin with TTL and be connected, the TTL signal that single-chip microcomputer is sent is converted to through it Usb signal, TTL turns USB chips U1 and is connected by usb bus with mainboard 14, the communication for realizing single-chip microcomputer and mainboard；Monolithic Machine U3A PA9-PA10 pin, PB5-PB7 pin is connected with main LoRa modules U4, single-chip microcomputer U3A PB10-Pb14 pin with from LoRa Module U5 connections.

Radio station collaboration circuit completes the logic control of two LoRa inside modules, main first including docking port change-over circuit The State Transferring of beginningization and control interface, the power-up of MCU chip, messaging parameter adjustment, the signal sequence control of wireless module System.The transmission that the single-chip microcomputer of radio station collaboration circuit is mainly two LoRa modules of control is torn open with receiving sequential to data stream Bag and package, are parsed to respective byte, main LoRa modules progress frequency fixing communication, according to the instruction of main LoRa modules to from LoRa modules carry out parameter configuration and realize frequency hopping communications, are finally completed the structure of self-organized network communication system and perfect, single-chip microcomputer is simultaneously Received signal is sent back to main frame, coordinates corresponding software to realize function.After main frame is powered, single-chip microcomputer can be searched for automatically The signal of assigned frequency, carries out repeatedly shaking hands and constantly improve routing iinformation with purpose equipment.Equipment is used when sending data Fixed optimum link is communicated, by controlling transmitting-receiving sequential, it is ensured that the channel that taken will not be impacted, it is ensured that The reliability and integrality of transceiving data.

As shown in Fig. 2 the power module includes 12V20Ah polymer batteries 20 and charging circuit 21, polymer battery 20 connection charging circuits 21, while being connected by power management module 19 with mainboard 14.Power module also includes two voltages and turned Circuit (i.e. 12V turns 5V circuits, 5V and turns 3.3V circuits) is changed, wherein 12V turns 5V using LM2596D2T-5 modules, and 5V turns 3.3V and adopted AMS1117 modules are used, as shown in Figure 4,5, power module can be charged two change-over circuits using charging circuit for battery, utilize voltage Change-over circuit obtains suitable power source, and operating voltage is provided for radio station collaboration circuit.

As shown in Fig. 2 the reinforcing touch screen displays 6 are overall to use reinforced structure design, including it is drive module 28, aobvious Show panel 29, capacitance touch screen 7 and authentication module 31, drive module 28 passes through in data wire and reinforced portable main frame Display control module 18 is connected, and drive module 28 and display panel 29, display panel 29 are connected with capacitance touch screen 7.The body Part authentication module 31 uses RC522 radio-frequency modules, and the module is integrated in display back unmasked region, using 13.56Mhz works Working frequency, is connected by TTL modular converters 30 and drive module 28 with main frame, and the mode of the general brush smart card of user completes identity Certification and login software platform.

The guidance panel and peripheral hardware for being illustrated in figure 6 the utility model reinforcing touch screen displays and reinforced portable main frame connect Mouthful schematic diagram, reinforces touch screen displays and is swiped the card panel 8 and display operation panel provided with smart card, and connect provided with integrated data Mouth is used to insert data wire, is connected with reinforced portable main frame.Reinforced portable main frame is provided with COBBAIF, USB interface, net Network interface (Ethernet interfaces), extension HDMI, DC interfaces, integrated data interface and two for socket antenna 433MHz antennal interfaces and a Beidou antenna interface, while being additionally provided with host service function panel and fin and radiator fan, be Main frame radiates.

Different according to use occasion, the utility model can have two kinds of application models, and one kind is that individual soldier bears type communication terminal, As shown in fig. 7, ergonomics knapsack 9 need to be set, the ergonomics knapsack is that customization is not according to soldier's height and body weight The knapsack of same model, is determined according to mission area profile color is performed using cold zone type, desert type and jungle type thickening camouflage canvas It is main frame fixed bit on rear side of system, body, body front left side is display fixed bit, is connected by integrated data cable；Also simultaneously The spare parts such as charger, preliminary data line and reserve battery are deposited in knapsack forward right side position.Individual soldier bears the sound of type communication terminal The general headsets 10 of frequency equipment choosing 3.5mm, and profile and customization, the consolidation process of interface are carried out according to actual use scene.It is single The antenna that soldier bears type terminal selects the miniature sucker antennas of 433MHz.

Another application model is vehicle-mounted type communication terminal, as shown in figure 8, in-car use fixed seat by main frame and display The inner side of car wall 11 is installed on, and carries out damping and consolidation process, can be powered using in-car 12V or 24V direct currents, extension is set Standby use time.Car-mounted terminal need to use lengthening 433MHz sucker antennas, and use fixed audio frequency apparatus, sound equipment 12 and microphone 13 are fixed in car wall to improve stability.

As shown in figure 9, communication terminal described in the utility model can voluntarily set up Ad hoc networks.Adhoc networks are one All nodes is equal in the network of equity, network, any central node or service node without setting.Ad hoc Network has automatic search (Self-Discovering), automatically configures (Self-Configuring), automatic network-building (Self- Organizing), the characteristics of automatic recovery (Self-Healing).Adhoc network nodes are capable of the change of dynamically adapting network, The states of the other nodes of quick detection and the existing routing iinformation for detecting other nodes, network node by distributed algorithm come Coordinate annexation each other, can anywhere rapid deployment and voluntarily networking at any time, realize terminal device Between mutual voice communication, short message communication, picture transfer, the transmission of commander's file, geographical coordinate the function such as report.Same net The transmission mode between terminal device in network includes broadcast, group, point-to-point three kinds of modes.

Communication process of the present utility model is：

Transmission process：Main LoRa modules broadcast transmission first sets up connection signal, finds the physical address of destination host, enters Row is shaken hands for the first time, confirms have data to need after sending, and the main LoRa module arrangements communication sequential of destination host, such as nothing is received During data, it is determined that data start to send after can receiving.Data are received such as main frame, by after finishing receiving transmission timing believe Number, corresponding data is received again.

Reception process；Receive and come after the foundation connection signal of autonomous LoRa radio-frequency modules from LoRa modules, it is determined that after networking, Shaken hands again, it is determined that there are data to need reception, and returned data receives sequential, single-chip microcomputer is divided data receipt time Match somebody with somebody, start to receive data after confirmation, receive the data come by the incoming main frame of RS485 buses, data are carried out by software platform Processing.

Claims (10)

1. a kind of MANET Tactical Communications Terminal based on LoRa technologies, including reinforced portable main frame (1), reinforcing touch screen are shown Device (6) and antenna, reinforced portable main frame (1) are connected by data wire with reinforcing touch screen displays (6)；It is characterized in that：Institute Reinforced portable main frame (1) is stated including shell and mainboard (14) in shell, main LoRa modules (25), from LoRa modules (26), big dipper module (27), power module and display control module (18), mainboard (14) cooperate with circuit and main LoRa by radio station Module (25), from LoRa modules (26) connection, while being connected by TTL change-over circuits with big dipper module (27), display control mould Block (18) is connected with mainboard (14)；The guidance panel (2) and Peripheral Interface being connected with mainboard are additionally provided with shell；The antenna bag LoRa antennas and Beidou antenna (4) are included, LoRa antennas are connected with main LoRa modules (25), from LoRa modules (26), Beidou antenna (4) it is connected with big dipper module (27)；The reinforcing touch screen displays (6) include drive module (28), display panel (29) and position In the capacitance touch screen (7) on display panel, drive module (28) passes through the display control in data wire and reinforced portable main frame Molding block (18) is connected, and drive module (28) is connected with display panel (29).

2. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：The radio station Collaboration circuit includes single-chip microcomputer (U3A, U3B) and TTL turns USB chips (U1)；The PA2 pin of single-chip microcomputer (U3A, U3B), PA3 pin with TTL turns the RXD pin of USB chips (U1), the connection of TXD pin, and the TTL signal that single-chip microcomputer is sent is converted to usb signal through it, and TTL turns USB chips (U1) are connected by usb bus with mainboard (14), the communication for realizing single-chip microcomputer and mainboard；Single-chip microcomputer (U3A, U3B PA9-PA10 pin, PB5-PB7 pin) is connected with main LoRa modules (U4), the PB10-PB14 pin of single-chip microcomputer (U3A, U3B) with From LoRa modules (U5) connection, for realizing the Control on Communication to two LoRa modules.

3. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：The power supply Module includes polymer battery (20), 12V and turns 5V circuits, 5V and turn 3.3V circuits and charging circuit (21), polymer battery (20) Connection charging circuit (21) is simultaneously connected by power management module (19) with mainboard (14).

4. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：The data Line two ends are connected using Aviation Connector with reinforced portable main frame, reinforcing touch screen displays.

5. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：The LoRa Antenna is 433MHz antennas (3).

6. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：Reinforce touch screen Authentication module (31) is additionally provided with display (6), the module uses RC522 radio-frequency modules, passed through TTL modular converters (30) It is connected with drive module (28) with reinforced portable main frame.

7. the MANET Tactical Communications Terminal according to claim 1 based on LoRa technologies, it is characterised in that：Mainboard (14) It is provided with outside central processing unit (16) and built-in storage (15), mainboard and is also associated with external memory (17), built-in storage uses 4GB 1600Mhz internal memories, external memory uses 64GB SSD3.0 solid-state memories.

8. the MANET Tactical Communications Terminal based on LoRa technologies according to any one of claim 1 to 7, its feature exists In：Also include audio frequency apparatus (5), the audio frequency apparatus (5) is connected by Peripheral Interface with mainboard.

9. the MANET Tactical Communications Terminal according to claim 8 based on LoRa technologies, it is characterised in that：The audio Equipment is headset (10).

10. the MANET Tactical Communications Terminal according to claim 8 based on LoRa technologies, it is characterised in that：The sound Frequency equipment uses fixed sound equipment (12) and microphone (13).