CN108200573A - A kind of LoRa wireless modules, data transmission system and data transmission method - Google Patents
A kind of LoRa wireless modules, data transmission system and data transmission method Download PDFInfo
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- CN108200573A CN108200573A CN201810100875.7A CN201810100875A CN108200573A CN 108200573 A CN108200573 A CN 108200573A CN 201810100875 A CN201810100875 A CN 201810100875A CN 108200573 A CN108200573 A CN 108200573A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0877—Generation of secret information including derivation or calculation of cryptographic keys or passwords using additional device, e.g. trusted platform module [TPM], smartcard, USB or hardware security module [HSM]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application provides a kind of LoRa wireless modules, data transmission system and data transmission method, wherein, LoRa wireless modules include main control chip, safe unit and LoRa radio frequency units, safe unit and LoRa radio frequency units are integrated in main control chip, main control chip obtains the target data of data acquisition equipment acquisition, and target data is sent to safe unit, target data is encrypted in safe unit, obtain encryption data, and encryption data is sent to the main control chip, main control chip calls LoRa protocol stacks, encryption data is sent by LoRa radio frequency units.The LoRa wireless modules that the application provides are encrypted data using hardware cipher mode, and are sent encryption data using the LoRa radio frequency units being integrated in main control chip, this causes the safety of data to greatly improve.
Description
Technical field
The present invention relates to a kind of field of communication technology more particularly to LoRa wireless modules, data transmission system and data to pass
Transmission method.
Background technology
LoRa is a kind of low-power consumption long-distance radio communication technology, is mainly directed towards Internet of Things (IoT) or M2M etc., is application
In the important wireless technology of low-power consumption wide area network (LPWAN).LoRa wireless communication techniques mainly have following features：(1) grow away from
From under dense urban environments, LoRa base stations and gateway have stronger penetration capacity, in spacious suburb terminal node sensor
It is up to 15~30 kilometers or even farther with distance；(2) it is inexpensive, the infrastructure of LoRa early periods and operation cost and terminal
The cost of junction sensor is low；(3) standardize, LoRaWAN ensure that application between interoperability, Internet of Things solution supplier and
Telecom operators can accelerate to use and dispose；(4) low-power consumption, LoRaWAN agreements aim at low-power consumption and develop, and battery life can
Up to the several years.
LoRa data transmission modules based on LoRa wireless communication techniques mainly have data acquisition functions and data transmission
Function.LoRa data transmission modules are installed on the data acquisition equipments such as water meter, gas meter, pressure gauge, pass through data acquisition equipment
Standard interface obtain data, data acquired be in plain text, later, LoRa data transmission modules using storage Encryption Algorithm to bright
Text encryption, obtains ciphertext, and after ciphertext is encoded, forward error correction coding and band spectrum modulation are carried out, then lead to by LoRa radio frequency units
Radio wave transmission is crossed, the gateway disposed in region receives transmitting data, and received data is transferred to by wired broadband network
Network server is decrypted, and by data forwarding after decryption or is locally stored.That is, in the prior art, LoRa data transmission modules
The data obtained from data acquisition equipment are encrypted using software cryptography mode, this cause ciphering process easily be tracked,
It cracks.
Invention content
In view of this, the present invention provides a kind of LoRa wireless modules, data transmission system and data transmission method, to
Solve the problem of that LoRa wireless modules are encrypted that security intensity is low, risk is big by the way of pure software in the prior art,
Technical solution is as follows：
A kind of LoRa wireless modules, the LoRa wireless modules include：Main control chip, safe unit and LoRa radio frequency lists
Member；
The safe unit and the LoRa radio frequency units are integrated in the main control chip；
The main control chip for obtaining the target data of data acquisition equipment acquisition, and the target data is sent
To the safe unit；
The safe unit for the target data to be encrypted, obtains encryption data, and by the encryption data
It is sent to the main control chip；
The main control chip is additionally operable to call LoRa protocol stacks, the encryption data is passed through the LoRa radio frequency units
It is sent to destination network device.
Wherein, the main control chip includes：Processor and memory, the processor and the memory are total by communicating
Line connects；
The memory, for storing the LoRa protocol stacks；
Specifically for calling the LoRa protocol stacks in the memory, the encryption data is led to for the processor
The LoRa radio frequency units are crossed to send.
A kind of data transmission system, including：Data acquisition equipment and above-mentioned LoRa wireless modules；
The data acquisition equipment is connect with the LoRa wireless modules by UART interface；
The data acquisition equipment, for acquiring target data；
The LoRa wireless modules, for obtaining the number of targets from the data acquisition equipment by the UART interface
According to, the target data is encrypted, by encrypt obtain encryption data be sent to destination network device.
A kind of data transmission method, applied to the main control chip in the LoRa wireless modules, the data transmission method
Including：
Obtain the target data of data acquisition equipment acquisition；
The target data is sent to safe unit, so that the target data is encrypted in the safe unit；
Receive the encryption data that the safe unit is sent；
LoRa protocol stacks are called, the encryption data is sent to destination network device by the LoRa radio frequency units.
Wherein, the target data for obtaining data acquisition equipment acquisition, including：
The target data is obtained from the data acquisition equipment by UART interface.
A kind of data transmission method, applied to the safe unit in the LoRa wireless modules, the data transmission method
Including：
Receive the target data that main control chip is sent；
The target data is encrypted, obtains encryption data；
The encryption data is sent to main control chip, so that the main control chip calls LoRa protocol stacks, described will be added
Ciphertext data is sent by the LoRa radio frequency units.
Above-mentioned technical proposal has the advantages that：
LoRa wireless modules integrated security unit on main control chip provided in an embodiment of the present invention, passes through safe unit pair
Data are encrypted, i.e., the present invention is encrypted data using hardware cipher mode, can improve the safety of data, and
And LoRa radio frequency units are integrated in main control chip by the present invention, on the one hand can avoid main control chip and LoRa radio frequency units
The serial ports that may be brought by serial ports connection is eavesdropped, and on the other hand can be improved between main control chip and LoRa radio frequency units
Data transmission bauds, that is, LoRa wireless modules provided in an embodiment of the present invention realize encryption function by a chip
With LoRa communication functions, this causes the safety of data to greatly improve, and the enciphering rate of data greatly improves.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram of LoRa wireless modules provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of data transmission system provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of a data transmission method provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of another data transmission method provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of LoRa wireless modules, referring to Fig. 1, showing the knot of the LoRa wireless modules
Structure schematic diagram, the LoRa wireless modules can include：Main control chip 101, safe unit 102 and LoRa radio frequency units 103.
Wherein, safe unit 102 and LoRa radio frequency units 103 are integrated in main control chip 101.
Target data for obtaining the target data of data acquisition equipment acquisition, and is sent to safety by main control chip 101
Unit 102.
Wherein, data acquisition equipment can be the various terminal equipment of thing network sensing layer, for example, the end of acquisition humiture
End, the smoke detector for acquiring smoke data, the level sensing equipment for acquiring water level etc..
Main control chip 101 can be connect with data acquisition equipment by UART interface, and main control chip 101 is obtained by UART interface
The data that data acquisition equipment is taken to acquire.
In a kind of possible realization method, main control chip can with but be not limited to using STM32L151xE model MCU cores
Piece.
Safe unit 102 for target data to be encrypted, obtains encryption data, and encryption data is sent to master
Control chip 101.
In the present embodiment, safe unit 102 is the equal of the hardware encryption kernel being built in main control chip, when its reception
To main control chip 101 obtain target data when, target data is encrypted.
Main control chip 103 is additionally operable to call LoRa protocol stacks, encryption data is sent to by LoRa radio frequency units 103
Destination network device.
Wherein, LoRa protocol stacks are the software library for realizing lorawan agreements.
Specifically, main control chip 101 can include processor and memory, and processor and memory are connected by communication bus
It connects.Memory, for storing LoRa protocol stacks；Processor specifically for calling the LoRa protocol stacks in memory, will encrypt number
Outside network device is sent to according to by LoRa radio frequency units.
In the prior art, LoRa radio frequency units are encrypted data using software cryptography mode, and there are disadvantages for this mode
On the one hand end is that operation is resource-constrained, majority can only be encrypted data using symmetric encipherment algorithm, second is that pure software is encrypted
Mode is easily cracked, also, is communicated between LoRa radio frequency units and main control chip based on serial port protocol, and data are easily stolen
It listens.And LoRa wireless modules provided in an embodiment of the present invention integrated security unit on main control chip, pass through safe unit logarithm
According to being encrypted, i.e., the embodiment of the present invention is encrypted data using hardware cipher mode, can improve the safety of data,
Also, LoRa radio frequency units are integrated in main control chip by the embodiment of the present invention, on the one hand can avoid main control chip and LoRa
Radio frequency unit is eavesdropped by the serial ports that serial ports connection may be brought, and on the other hand can improve main control chip and LoRa radio frequency lists
Data transmission bauds between member.To sum up, LoRa wireless modules provided in an embodiment of the present invention are realized simultaneously by a chip
Encryption function and LoRa communication functions, this causes data encryption speed to greatly improve, and the safety of data greatly improves.
The embodiment of the present invention additionally provides a kind of data transmission system, referring to Fig. 2, showing the data transmission system
Structure diagram, the data transmission system can include：Data acquisition equipment 201 and LoRa wireless modules 202.
Wherein, data acquisition equipment 201 is connect with LoRa wireless modules 202 by UART interface, LoRa wireless modules 202
Can be the LoRa wireless modules that above-described embodiment provides.
Data acquisition equipment 201, for acquiring target data.
Wherein, data acquisition equipment can with but be not limited to the various terminal equipment of thing network sensing layer, for example, acquisition temperature
The terminal of humidity, the smoke detector for acquiring smoke data, the level sensing equipment for acquiring water level etc..
LoRa wireless modules 202 obtain target data, to target for passing through UART interface from data acquisition equipment 201
Data are encrypted, and the encryption data for encrypting acquisition is sent to destination network device.
Wherein, LoRa wireless modules 202 are encrypted and transmit to the target data acquired from data acquisition equipment 201
Process can be found in above-described embodiment, therefore not to repeat here.
In data transmission system provided in an embodiment of the present invention, LoRa wireless modules adopt data using hardware cipher mode
The target data of collection equipment acquisition is encrypted, and can improve the safety of data, also, due to LoRa in LoRa wireless modules
Radio frequency unit is integrated on main control chip, and main control chip can be avoided to connect and may bring by serial ports with LoRa radio frequency units
Serial ports eavesdropping, it can be seen that, the LoRa wireless modules in data transmission system provided in an embodiment of the present invention improve data
Safety.
The embodiment of the present invention additionally provides a kind of data transmission method, which carries applied to above-described embodiment
Main control chip in the LoRa wireless modules of confession, referring to Fig. 3, show the flow diagram of the data transmission method, the number
It can include according to transmission method：
Step S301：Obtain the target data of data acquisition equipment acquisition.
Wherein, data acquisition equipment can with but be not limited to the various terminal equipment of thing network sensing layer, for example, acquisition temperature
The terminal of humidity, the smoke detector for acquiring smoke data, the level sensing equipment for acquiring water level etc..
In a kind of possible realization method, can target data be obtained from data acquisition equipment by UART interface.
Step S302：Target data is sent to safe unit, so that target data is encrypted in safe unit.
Step S303：Receive the encryption data that safe unit is sent.
Step S304：LoRa protocol stacks are called, encryption data is sent to destination network device by LoRa radio frequency units.
Wherein, LoRa protocol stacks are the software library for realizing lorawan agreements.
In data transmission method provided in an embodiment of the present invention, main control chip is sent to after target data is obtained
It is encrypted, i.e., target data is encrypted using hardware cipher mode to safe unit, improve the safety of data, and
And LoRa protocol stacks are called, encryption data is sent using the LoRa radio frequency units being integrated in main control chip, is avoided
Serial ports is eavesdropped, that is, data transmission method provided in an embodiment of the present invention improves the safety of data transmission.
The embodiment of the present invention additionally provides a kind of data transmission method, which carries applied to above-described embodiment
Safe unit in the LoRa wireless modules of confession, referring to Fig. 4, show the flow diagram of the data transmission method, the number
It can include according to transmission method：
Step S401：Receive the target data that main control chip is sent.
Wherein, target data is acquired for main control chip by UART interface from data acquisition equipment.
Step S402：Target data is encrypted, obtains encryption data.
Step S403：Encryption data is sent to main control chip, so that main control chip calls LoRa protocol stacks, number will be encrypted
It is sent according to by LoRa radio frequency units.
Wherein, LoRa protocol stacks are the software library for realizing lorawan agreements.
In data transmission method provided in an embodiment of the present invention, safe unit is in the target data for obtaining main control chip transmission
Later, target data is encrypted, i.e., target data is encrypted using hardware cipher mode, improve the safety of data
Property, also, main control chip calls LoRa protocol stacks, is sent out encryption data using the LoRa radio frequency units being integrated in main control chip
It sees off, avoids serial ports eavesdropping, that is, data transmission method provided in an embodiment of the present invention improves the safety of data transmission
Property.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
In several embodiments provided herein, it should be understood that disclosed method, apparatus and equipment, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function can have other dividing mode, such as multiple units or component in actual implementation
It may be combined or can be integrated into another system or some features can be ignored or does not perform.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be by some communication interfaces, between device or unit
Coupling or communication connection are connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.In addition, each functional unit in each embodiment of the present invention can be integrated in it is in a processing unit or each
Unit is individually physically present, can also two or more units integrate in a unit.
If the function is realized in the form of SFU software functional unit and is independent product sale or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially in other words
The part contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be
People's computer, server or network equipment etc.) perform all or part of the steps of the method according to each embodiment of the present invention.
And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (6)
1. a kind of LoRa wireless modules, which is characterized in that the LoRa wireless modules include：Main control chip, safe unit and
LoRa radio frequency units；
The safe unit and the LoRa radio frequency units are integrated in the main control chip；
The target data for obtaining the target data of data acquisition equipment acquisition, and is sent to institute by the main control chip
State safe unit；
The safe unit for the target data to be encrypted, obtains encryption data, and the encryption data is sent
To the main control chip；
The main control chip is additionally operable to call LoRa protocol stacks, the encryption data is sent by the LoRa radio frequency units
To destination network device.
2. LoRa wireless modules according to claim 1, which is characterized in that the main control chip includes：It processor and deposits
Reservoir, the processor are connected with the memory by communication bus；
The memory, for storing the LoRa protocol stacks；
The encryption data specifically for calling the LoRa protocol stacks in the memory, is passed through institute by the processor
LoRa radio frequency units are stated to send.
3. a kind of data transmission system, which is characterized in that including：It is any one in data acquisition equipment and such as claim 1-2
LoRa wireless modules described in；
The data acquisition equipment is connect with the LoRa wireless modules by UART interface；
The data acquisition equipment, for acquiring target data；
The LoRa wireless modules, for obtaining the target data from the data acquisition equipment by the UART interface,
The target data is encrypted, the encryption data for encrypting acquisition is sent to destination network device.
4. a kind of data transmission method, which is characterized in that wireless applied to the LoRa as described in any one in claim 1-2
Mould main control chip in the block, the data transmission method include：
Obtain the target data of data acquisition equipment acquisition；
The target data is sent to safe unit, so that the target data is encrypted in the safe unit；
Receive the encryption data that the safe unit is sent；
LoRa protocol stacks are called, the encryption data is sent to destination network device by the LoRa radio frequency units.
5. data transmission method according to claim 4, which is characterized in that the mesh for obtaining data acquisition equipment acquisition
Data are marked, including：
The target data is obtained from the data acquisition equipment by UART interface.
6. a kind of data transmission method, which is characterized in that wireless applied to the LoRa as described in any one in claim 1-2
Mould safe unit in the block, the data transmission method include：
Receive the target data that main control chip is sent；
The target data is encrypted, obtains encryption data；
The encryption data is sent to main control chip, so that the main control chip calls LoRa protocol stacks, by the encryption number
It is sent according to by the LoRa radio frequency units.
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| CN201810100875.7A CN108200573A (en) | 2018-02-01 | 2018-02-01 | A kind of LoRa wireless modules, data transmission system and data transmission method |
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| CN201810100875.7A CN108200573A (en) | 2018-02-01 | 2018-02-01 | A kind of LoRa wireless modules, data transmission system and data transmission method |
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| CN110599752A (en) * | 2019-08-16 | 2019-12-20 | 深圳融卡智能科技有限公司 | Water level acquisition terminal and water level acquisition system |
| CN110806520A (en) * | 2019-10-29 | 2020-02-18 | 北京鑫泰绿能科技有限公司 | Photovoltaic power plant fault detection system |
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