CN108882250B - LoRa-mesh dual-mode communication device - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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Abstract
The invention discloses a LoRa-mesh dual-mode communication device, and belongs to the technical field of wireless communication. The Bluetooth module comprises a shell and a control unit, wherein the control unit is connected with a positioning module, a Bluetooth module, an FM module, a LoRa-mesh dual-mode communication module and a battery module, and the positioning module, the Bluetooth module, the FM module and the LoRa-mesh dual-mode communication module are all connected with corresponding antennas. The invention can realize interaction with the mobile phone of the user through the Bluetooth module. In addition, in the area with insufficient signal coverage, users can be quickly networked through the device, so that the most flexible mode is provided, and communication among mobile users, fixed base stations and mobile base station equipment is realized.
Description
Technical Field
The invention relates to a LoRa-mesh dual-mode communication device, and belongs to the technical field of wireless communication.
Background
Long Range (LoRa) is a Low Power Wide Area Network (LPWAN) technology released by the liter (Semech). At present, LoRa communication networks are mainly carried on frequency points of Sub-1Ghz such as 470-510 Mhz, 900Mhz and the like. The technology is applied to the low-power-consumption industrial Internet of things, and can realize networking among nodes, monitoring of node target data and data return synchronization. The technology has the characteristics of relatively fixed positions among nodes and networking modes, long transmission distance, low transmission rate, small data volume and the like.
As an important application, the LoRa technology can be applied to areas where conventional communication signals cannot be covered, such as an unmanned ecological area, an ocean, an underground mine, an exploration area, and an area where large-area disasters are difficult to ensure.
However, the communication device based on LoRa in the prior art still has a problem of single communication mode, which limits the wide application of the communication device based on LoRa in more scenes.
Disclosure of Invention
The invention provides a LoRa-mesh dual-mode communication device, which is based on a Lora-mesh dual-mode module communication technology, can realize interaction with a user mobile phone through a Bluetooth module, can realize rapid networking in an area with insufficient signal coverage, and can realize communication among a mobile user, a fixed base station and mobile base station equipment in a most flexible mode.
In order to achieve the above purpose, the invention provides the following technical scheme:
a LoRa-mesh dual-mode communication device comprises a shell and a control unit, wherein the control unit is connected with a positioning module, a Bluetooth module, an FM module, a LoRa-mesh dual-mode communication module and a battery module, the positioning module, the Bluetooth module, the FM module and the LoRa-mesh dual-mode communication module are all connected with corresponding antennas, the control unit, the positioning module, the Bluetooth module, the FM module, the LoRa-mesh dual-mode communication module and the battery module are all located in the shell, and the two antennas corresponding to the LoRa-mesh dual-mode communication module extend out of the shell; the LoRa-mesh dual-mode communication module is used for realizing networking, communication, signal screening switching and encryption/encapsulation functions among devices in the same network;
The Bluetooth module is used for communicating with a smart phone of a user, realizing man-machine interaction and realizing partial setting, communication object selection and performance comparison functions of the device; meanwhile, the Bluetooth module also provides an access channel for other intelligent equipment; the FM module is used for receiving FM broadcast signals, FM broadcasts and FM emergency broadcasts, a user sets an FM channel through Bluetooth, and the user is connected with the intelligent equipment through connecting an earphone to listen to the FM broadcasts;
the battery module is used for providing electric quantity endurance for the system, detecting the electric quantity of the battery and feeding back the electric quantity to the user and equipment management system; the positioning module is used for acquiring real-time positioning data;
the control unit is used for realizing function logic and module calling in the product and sending out voice operation prompts.
Optionally, a main switch is arranged on an output circuit of the battery module, and the FM frequency modulation module is connected with an earphone interface through an audio output circuit.
Optionally, the FM frequency modulation module is further connected with a channel switching circuit, the channel switching circuit is provided with a channel switching button, and the start and stop of the FM and the channel switching are all completed by the operation of connecting the mobile phone APP through the bluetooth.
Optionally, the positioning module carries at least one positioning mode of the big dipper RNSS/GPS, so as to achieve the function of acquiring the specific positioning data of the device in real time.
Optionally, the control unit is connected with a 3.5 mm audio interface, provides audio output for the device, and carries a microphone, so as to realize user voice information interaction.
Optionally, the control unit is configured with a PTT button for implementing a talk-back function, and PTT voice is transmitted through the LoRamesh dual-mode communication module, and digital half-duplex communication is implemented in the form of a voice data packet.
Optionally, the control unit is further provided with a mode switching button and a determination button.
Optionally, the control unit is further connected with miniusb, typeC and Lightning Dock interfaces.
As can be seen from the above description, the technical scheme of the invention has the beneficial effects that:
the device is based on the Lora-mesh dual-mode module communication technology, and can realize interaction with a user mobile phone through a Bluetooth module. In addition, in the area with insufficient signal coverage, users can be quickly networked through the device, so that the most flexible mode is provided, and communication among mobile users, fixed base stations and mobile base station equipment is realized. The networking of the device is independent of the communication of the conventional network (such as the current operator 2G/3G/4G), and the communication problem of the coverage area without the conventional communication signal can be solved to the maximum extent. Meanwhile, the device can be configured with corresponding APP (application program), so that communication and information interaction are carried out by utilizing a conventional communication network in a region with conventional network communication, and communication resource compatibility and utilization maximization are achieved.
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In order to more clearly describe this patent, one or more of the following figures are provided.
Fig. 1 is a schematic block diagram of a LoRa-mesh dual-mode communication device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an external structure of a LoRa-mesh dual-mode communication device according to an embodiment of the present invention;
fig. 3 is a reference diagram of a usage status of the LoRa-mesh dual-mode communication device according to the embodiment of the present invention;
fig. 4 is a schematic diagram of communication logic between the LoRa-mesh dual-mode communication devices.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present patent by those skilled in the art, the technical solutions of the present patent are further described in the following specific cases.
A LoRa-mesh dual-mode communication device comprises a shell and a control unit, wherein the control unit is connected with a positioning module, a Bluetooth module, an FM module, a LoRa-mesh dual-mode communication module and a battery module, the positioning module, the Bluetooth module, the FM module and the LoRa-mesh dual-mode communication module are all connected with corresponding antennas, the control unit, the positioning module, the Bluetooth module, the FM module, the LoRa-mesh dual-mode communication module and the battery module are all located in the shell, and two antennas corresponding to the LoRa-mesh dual-mode communication module extend out of the shell; the LoRa-mesh dual-mode communication module is used for realizing networking, communication, signal screening switching and encryption/encapsulation functions among devices in the same network;
The Bluetooth module is used for communicating with a smart phone of a user, realizing man-machine interaction and realizing partial setting, communication object selection and performance comparison functions of the device; meanwhile, the Bluetooth module also provides an access channel for other intelligent equipment; the FM module is used for receiving FM broadcast signals, FM broadcasts and FM emergency broadcasts, a user sets an FM channel through Bluetooth, and the user is connected with the intelligent equipment through connecting an earphone to listen to the FM broadcasts;
the battery module is used for providing electric quantity endurance for the system, detecting the electric quantity of the battery and feeding back the electric quantity to the user and equipment management system;
the positioning module is used for acquiring real-time positioning data;
the control unit is used for realizing function logic and module calling in the product and sending out voice operation prompts.
Optionally, a main switch is arranged on an output circuit of the battery module, and the FM frequency modulation module is connected to an earphone interface through an audio output circuit.
Optionally, the FM frequency modulation module is further connected with a channel switching circuit, the channel switching circuit is provided with a channel switching button, and the start and stop of the FM and the channel switching are all completed by the operation of connecting the mobile phone APP through the bluetooth.
Optionally, the positioning module carries at least one positioning mode of compass RNSS/GPS to realize a function of acquiring specific positioning data of the device in real time.
Optionally, the control unit is connected with a 3.5 mm audio interface, provides audio output for the device, and carries a microphone, so as to realize user voice information interaction.
Optionally, the control unit is further connected to a PTT wireless intercom module, the PTT wireless intercom module has a PTT button, and the intercom function of the PTT wireless intercom module is transmitted based on a 2.4 Ghz high-rate module in the LoRa-mesh dual-mode communication module, so as to implement digital half-duplex communication in the form of a voice data packet.
Optionally, the control unit is further provided with a mode switching button and a determination button.
Optionally, the control unit is further connected with miniusb, typeC and Lightning Dock interfaces.
Specifically, as shown in fig. 1, the lora-mesh dual mode communication device includes: the system comprises a LoRa-mesh dual-mode communication module and an antenna (radio frequency points are at 2.4 GHz and Sub 1GHz, the transmission is realized through a LoRa network, and the self-networking dual-mode communication network module is realized through mesh), wherein the module has the functions of networking, communication (sending, receiving, skipping), signal screening, switching, encryption/encapsulation and the like among devices in the same network;
the Bluetooth module can be communicated with a smart phone of a user, so that man-machine interaction is realized, and functions of partial setting, communication object selection, performance adjustment and the like of the device are realized; meanwhile, the Bluetooth module also provides an access channel for other intelligent equipment; the FM module and the antenna can receive FM broadcast signals, FM broadcasts and FM emergency broadcasts, a user sets an FM channel through Bluetooth, and the user is connected with the intelligent equipment through connecting an earphone to listen to the FM broadcasts; the battery module is used for providing power continuation for the system, detecting the battery power and feeding back the battery power to the user and equipment management system; the Beidou/GPS positioning module is used for acquiring real-time positioning data; and the MCU (micro control unit) central processing unit realizes the calling of functional logic and modules in the product, can expand a voice chip and realizes voice operation prompt.
Fig. 2 shows the external structure of the device, which comprises: the antenna comprises a Lora-mesh antenna, an FM antenna, a Bluetooth antenna and a positioning antenna;
the main switch is used for starting and shutting down by long-time pressing of the switch;
a plurality of selection buttons, a sound volume size button, a channel switching button and the like are included;
a mode/confirmation button for switching modes and determining a Push To Talk (PTT) button, for holding the button to realize talkback and ending the talkback after releasing the talkback; data interfaces including current universal mobile phone smart device interfaces such as miniusb, typeC, Lightning Dock, and the like; 3.5 mm earphone audio interface.
Fig. 3 is a reference diagram of a usage state of the apparatus (i.e., "smart device" in the figure) of the present invention, wherein: the intelligent equipment realizes ad hoc network and data transmission with the same-network intelligent equipment, the fixed base station and the mobile base station through lora-mesh, and uses Sub1Ghz low speed to remotely transmit necessary data such as system information, emergency information, positioning information and the like when the communication distance is longer; when the communication distance is close, the communication distance is switched to 2.4 Ghz high rate for short-distance transmission;
the intelligent equipment is connected with a user mobile phone APP through Bluetooth to realize man-machine interaction;
The intelligent device is connected with audio devices such as a wireless earphone through the Bluetooth, and a voice access mode is achieved through a 3.5 MM earphone socket.
The device of the invention is used as follows:
(1) the user A initiates communication to a user B by using a mobile phone APP through connection of a Bluetooth module of the intelligent device A and the intelligent device A, communication contents comprise information such as voice, characters and pictures, the intelligent device A receives and analyzes a communication request of the user A firstly, the communication request comprises a communication address of the target user B, the connection condition of communication signals of the two intelligent devices AB, the type (text type small data volume type and multimedia large data volume type) of data sent by the user A and the like, and then the data is sent to the intelligent device B by a Lora mesh module matched with the response according to the data type condition.
The module that smart machine B corresponds receives data, confirms that the communication address accords with, decompresses data to transmit to user B cell-phone APP through bluetooth module, carry out follow-up demonstration, if the communication content is the text, then show with the SMS form in APP, if the content is the picture, then show with the picture mode in APP, if the content is pronunciation, then play at the earphone. If the user A continuously executes voice information transmission with the user B, operation similar to 'talkback' can be executed through a PPT button of the equipment, and the voice information is cached in the backup of the intelligent equipment and is synchronized to the APP of the mobile phone.
(2) Example of group communication
The example is group communication of a plurality of intelligent devices, and the same information can be sent to a plurality of user addresses among the plurality of intelligent devices in a similar group mode to realize the group communication. Meanwhile, permission setting can be realized in the group, namely the intelligent devices are mutually networked, and the message viewing permission is set through the communication address, so that a part of users only undertake the function of maintaining the relay skip of the network.
(3) Example of location sharing
The intelligent equipment can acquire position information in real time, can transmit position information each other through the ad hoc network communication module to cooperation map SDK in APP, the concrete position of API plug-in components demonstration realizes functions such as navigation, dotting, point-reporting and emergent SOS.
The LoRa-mesh dual-mode communication device can form networking in a star networking mode, each communication device is a node, the nodes are interconnected according to an effective communication distance, each node is provided with a communication address book, and each node is provided with a 2.4 Ghz LoRa-imesh module and a Sub 1Ghz-imesh module; the communication mode of the networking system is as follows:
the node receives data transmitted by an antenna through a 2.4 Ghz LoRa-imesh module or a Sub 1Ghz-imesh module;
when the 2.4 Ghz LoRa-imesh module works, the radio frequency points are carried on the 2.4 Ghz, and are autonomously networked in a mesh form, and transmission is realized by a LoRa/Flrc/FSK network; when the Sub 1Ghz-imesh module works, radio frequency points are carried below 1Ghz (such as 433Mhz, 470MHZ-510Mhz, 868Mhz, 915MHZ and the like), and are autonomously networked in a mesh form, and transmission is realized by a Lora network;
The node judges whether the communication address book of the signal source is a communication matching address, if so, the node receives data and packages the data, and if not, the node skips the data to other communication nodes; the node encrypts/decompresses the data, classifies the data, processes the multimedia data by using a 2.4 Ghz LoRa-imesh module and transmits the multimedia data to the user data terminal, and processes the text information by using a Sub 1Ghz-imesh module and transmits the text information to the user data terminal.
As shown in fig. 4, in the above system, the mode of transmitting data from the node a to the node B in the system is as follows:
a user at the node A end sends data to be sent to the MCU of the node A;
the MCU analyzes and classifies the data, wherein large data volume files such as images, voice, videos and the like are classified into one type, and texts, addresses, systems and emergency information are classified into one type;
packaging and encrypting data;
selecting a receiving and sending mode, executing a sending instruction, and configuring a communication address;
according to the classification type of the data, the matching transmission module is a 2.4 Ghz LoRa-imesh module or a Sub 1Ghz-imesh module;
and sending the data through the matched module.
Accordingly, the mode of receiving the node a data by the node B in the system is as follows:
A 2.4 Ghz LoRa-imesh module or Sub 1Ghz-imesh module of the node B waits to monitor all external signals;
when data access occurs, receiving through the corresponding module;
defining a transmission mode label of data communication according to the type of the data packet, wherein the transmission mode label is 2.4 Ghz or Sub 1 Ghz;
determining to execute receiving work according to the communication address;
the MCU of the node B executes decompression work;
the MCU further classifies the data and transmits the data to the user at the node B end.
In the above system, the mode of the node a sending data to the node C through the node B is as follows:
a user at the node A end sends data to be sent to the MCU of the node A;
the MCU analyzes the data through the data, and classifies the data into one of images, voice, videos and texts;
packaging and encrypting data;
selecting a receiving and sending mode, executing a sending instruction, and configuring a communication address;
according to the data type, the matching transmission module is a 2.4 Ghz LoRa-imesh module or a Sub 1Ghz-imesh module;
sending data through the matched modules;
the node B hops data for the node C, specifically:
a 2.4 Ghz LoRa-imesh module or Sub 1Ghz-imesh module of the node B waits to monitor all external signals;
When data access occurs, receiving through a corresponding module;
defining a transmission mode label of data communication according to the type of the data packet, wherein the transmission mode label is 2.4 Ghz or Sub 1 Ghz;
according to the communication address, determining to execute the jump work;
and the MCU of the node B configures a corresponding transmission module to forward data to the node C according to the data communication type.
The receiving process of the node C in the system is the same as the normal data receiving process, and is not described herein again.
In a word, the device is based on the Lora-mesh dual-mode module communication technology, and can realize interaction with a user mobile phone through a Bluetooth module. In addition, in the area with insufficient signal coverage, users can be quickly networked through the device, so that the most flexible mode is provided, and communication among mobile users, fixed base stations and mobile base station equipment is realized. The networking of the device is independent of the communication of the conventional network (such as the current operator 2G/3G/4G), and the communication problem of the coverage area without the conventional communication signal can be solved to the maximum extent. Meanwhile, the device can be configured with corresponding APP (application program), so that communication and information interaction are carried out by utilizing a conventional communication network in a region with conventional network communication, and communication resource compatibility and utilization maximization are achieved.
It should be noted that the foregoing specific embodiments are only specific examples of the implementation schemes of the present patent, and do not or may not cover all implementation schemes of the present patent, so that the present patent protection scope cannot be considered as limited; all the implementations which belong to the same concept as the above cases, or the combination of the above solutions, are within the protection scope of this patent.
Claims (7)
1. A kind of LoRa-mesh bimodulus communicator, characterized by that: the Bluetooth module, the locating module, the FM module and the LoRa-mesh dual-mode communication module are all connected with corresponding antennas, the control unit, the locating module, the Bluetooth module, the FM module, the LoRa-mesh dual-mode communication module and the battery module are all located in the shell, and the two antennas corresponding to the LoRa-mesh dual-mode communication module extend out of the shell; wherein,
the LoRa-mesh dual-mode communication module is used for realizing networking, communication, signal screening switching and encryption/encapsulation functions among LoRa-mesh dual-mode communication devices in the same network;
The Bluetooth module is used for communicating with a smart phone of a user, realizing man-machine interaction and realizing partial setting, communication object selection and performance comparison functions of the device; meanwhile, the Bluetooth module also provides an access channel for other LoRa-mesh dual-mode communication devices;
the FM module is used for receiving FM broadcast and FM emergency broadcast, so that a user can set an FM channel through Bluetooth and connect the LoRa-mesh dual-mode communication device through an earphone to listen to the FM broadcast;
the battery module is used for providing electric quantity for the device to continue a journey, detecting the electric quantity of the battery and feeding back the electric quantity to the user and the equipment management system;
the positioning module is used for acquiring real-time positioning data;
the control unit is used for realizing the calling of function logic and modules in the product and sending out voice operation prompts;
the LoRa-mesh dual-mode communication device forms networking in a star networking mode, each device is a node, the nodes are interconnected according to an effective communication distance, each node is provided with a communication address book, the nodes judge whether the communication address book of a signal source is a communication matching address, if yes, the nodes receive data and package the data, and if not, the nodes skip the data to other nodes; each node is provided with a 2.4 Ghz LoRa-mesh module and a Sub 1Ghz LoRa-mesh module;
The node encrypts/decompresses the data, classifies the data, processes and transmits multimedia data to a user data terminal by using a 2.4 Ghz LoRa-mesh module, and processes and transmits text information by using a Sub 1Ghz LoRa-mesh module;
when the 2.4 Ghz LoRa-mesh module works, radio frequency points are carried on the 2.4 Ghz, autonomous networking is carried out in a mesh form, and transmission is realized by one of LoRa, Flrc and FSK;
when the Sub 1Ghz LoRa-mesh module works, the radio frequency points are carried below 1Ghz, autonomous networking is carried out in a mesh form, and transmission is realized by a Lora network;
the 2.4 Ghz LoRa-mesh module and the Sub 1Ghz LoRa-mesh module undertake networking, communication, signal screening switching and encryption/encapsulation among devices in the same network; the communication among the devices in the same network at least comprises one of sending, receiving and jumping;
the LoRa-mesh dual-mode communication device is used for group communication: the same information is sent to a plurality of communication addresses in a group mode among a plurality of same-network LoRa-mesh dual-mode communication devices for group communication; meanwhile, setting authority in the group; when the LoRa-mesh dual-mode communication devices are mutually networked, and the message viewing permission is set through the communication address, one part of the LoRa-mesh dual-mode communication devices only undertake the relay skip function of maintaining the network;
The positioning module is used for acquiring real-time positioning data, so that the LoRa-mesh dual-mode communication device in the group can transmit position information mutually through the positioning module, and the positioning module is matched with a map SDK and an API plug-in unit in an APP to display specific positions, so that navigation, dotting, point reporting and emergency help seeking can be carried out.
2. The LoRa-mesh dual-mode communication device of claim 1, wherein: the battery module is characterized in that a main switch is arranged on an output circuit of the battery module, and the FM module is connected with an earphone interface through an audio output circuit.
3. The LoRa-mesh dual-mode communication device of claim 1, wherein: FM frequency modulation module still is connected with the channel switching circuit, be equipped with the channel switching button on the channel switching circuit, start of FM stops and the channel switching all passes through the operation of bluetooth connection cell-phone APP and accomplishes.
4. The LoRa-mesh dual-mode communication device of claim 1, wherein: the positioning module carries at least one positioning mode of Beidou RNSS/GPS, and the function of acquiring the specific positioning data of the device in real time is realized.
5. The LoRa-mesh dual-mode communication device of claim 1, wherein: the control unit is connected with a 3.5 mm audio interface, provides audio output for the device, and carries a microphone to realize user voice information interaction.
6. The LoRa-mesh dual-mode communication device as claimed in claim 1, wherein: the control unit is provided with a PTT button for realizing the talkback function, PTT voice is transmitted through the LoRa-mesh dual-mode communication module, and digital half-duplex communication is realized in the form of voice data packets.
7. The LoRa-mesh dual-mode communication device as claimed in claim 1, wherein: the control unit is also provided with a mode switching button and a determining button.
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| CN110572843B (en) * | 2019-09-29 | 2022-06-28 | 陈小艺 | Sniffing method and system based on LoRa wireless module CAD mode |
| CN111405647A (en) * | 2020-03-22 | 2020-07-10 | 重庆工程学院 | L oRa technology-based field wireless communication system and method thereof |
| CN114339853B (en) * | 2022-02-17 | 2024-02-06 | 北京卡特加特智能科技有限公司 | double-LORA intelligent gateway system for realizing long-distance stable transmission and working method |
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