CN111064929A - Video data acquisition system based on LoRa wireless transmission - Google Patents
Video data acquisition system based on LoRa wireless transmission Download PDFInfo
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- CN111064929A CN111064929A CN201911293024.XA CN201911293024A CN111064929A CN 111064929 A CN111064929 A CN 111064929A CN 201911293024 A CN201911293024 A CN 201911293024A CN 111064929 A CN111064929 A CN 111064929A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The invention discloses a video data acquisition system based on LoRa wireless transmission, which comprises: the system comprises an acquisition module, a conversion module, a LoRa gateway, a server and an MCU module; the acquisition module is connected with the conversion module and used for acquiring video data in real time and sending the video data to the conversion module; the conversion module is connected with the LoRa gateway and used for converting the video data into the LoRa video data; the LoRa gateway is connected with the server and used for sending LoRa video data to the server; the MCU module is used for controlling the acquisition module, the conversion module and the LoRa gateway. The system can acquire video data in real time through the acquisition module, then converts the video data into LoRa video data through the conversion module, and finally sends the video data acquired in real time to the server through the LoRa gateway.
Description
Technical Field
The invention relates to the field of video data acquisition, in particular to a video data acquisition system based on LoRa wireless transmission.
Background
Video data acquisition (Video Capture) mainly acquires Video data in a visual field range through a camera, and then stores or transmits the acquired Video data, a traditional Video data acquisition system mainly transmits the acquired Video data in a wired mode, but with the development of a mobile network, the traditional wired transmission mode is converted into a wireless transmission mode by the current Video data acquisition system, such as Bluetooth, WiFi, ZigBee and the like, but the wireless transmission modes have the defects of short transmission distance, high power consumption and instability.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides a video data acquisition system based on LoRa wireless transmission, which can stably transmit video data and has the advantages of long transmission distance and low power consumption.
The technical scheme adopted by the invention for solving the problems is as follows:
the invention provides a video data acquisition system based on LoRa wireless transmission, which comprises: the system comprises an acquisition module, a conversion module, a LoRa gateway, a server and an MCU module;
the acquisition module is connected with the conversion module and used for acquiring video data in real time and sending the video data to the conversion module; the conversion module is connected with the LoRa gateway and used for converting the video data into LoRa video data; the LoRa gateway is connected with the server and used for sending the LoRa video data to the server; the MCU module is used for controlling the acquisition module to acquire data in real time and control the conversion module to convert the video data into LoRa video data and control the LoRa gateway to send the LoRa video data to the server.
The video data acquisition system based on LoRa wireless transmission provided by the invention at least has the following beneficial effects:
can gather video data in real time through collection module, then convert loRa video data into through the conversion module, send the video data of real-time collection to the server through the loRa gateway at last, whole video data transmission process is stable, and is fast, and the consumption is lower, has reduced the cost of system.
And the storage module is connected with the MCU module and used for storing the video data acquired by the acquisition module.
The video data encryption device further comprises an encryption module, wherein the encryption module is connected with the storage module and the MCU module and is used for encrypting the video data stored in the storage module.
And the display module is connected with the MCU module and is used for displaying the video data acquired by the acquisition module in real time.
Further, a plurality of external communication interfaces are arranged on the LoRa gateway, and the external communication interfaces at least include an ethernet interface and a GPRS interface.
Further, the LoRa gateway communicates with the outside through a TCP or UDP communication method using the ethernet interface.
Further, the LoRa gateway communicates with the outside through a TCP or UDP communication mode using the GPRS interface.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of a video data acquisition system based on LoRa wireless transmission according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a video data acquisition system based on LoRa wireless transmission according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
Referring to fig. 1, an embodiment of the present invention provides a video data acquisition system based on LoRa wireless transmission, including: the system comprises an acquisition module 100, a conversion module 200, a LoRa gateway 300, a server 400 and an MCU module 500;
the acquisition module 100 is connected with the conversion module 200, and is used for acquiring video data in real time and sending the video data to the conversion module 200; the conversion module 200 is connected to the LoRa gateway 300, and is configured to convert the video data into LoRa video data; the LoRa gateway 300 is connected to the server 400, and configured to send LoRa video data to the server 400; the MCU module 500 is used to control the acquisition module 100 to acquire data in real time, control the conversion module 200 to convert the video data into LoRa video data, and control the LoRa gateway 300 to send the LoRa video data to the server 400.
For ease of understanding, the LoRa is explained here: lora (long Range radio), which is one of LPWAN communication technologies, is an ultra-long-distance wireless transmission scheme based on a spread spectrum technology created by semtech corporation. The LoRa technology has the characteristics of long distance, low power consumption (long battery life), multiple nodes and low cost. The transmission rate, the working frequency band and the network topology structure are three main parameters influencing the characteristics of a transmission network, and the LoRa combines digital spread spectrum, digital signal processing and forward error correction coding technology and has unprecedented performance.
The video data collection system based on LoRa wireless transmission that this embodiment provided utilizes LoRa's advantage, and at first collection module 100 gathers video data in real time, and conversion module 200 converts this video data into LoRa video data through standard LoRa wan protocol to transmit to LoRa gateway 300, and LoRa gateway 300 sends the LoRa video data after the conversion to server 400, and the viewer can obtain corresponding video data through server 400. The video data transmission process of the system is stable and quick, and the power consumption is low.
Here, the MCU module 500 is selected as an STM32 chip, for example, an STM32L051K8U6, an STM32L051K8U6 chip has many advantages of low power consumption, high performance, low cost, etc., and is commonly used in the field of data acquisition; the acquisition module 100 is a camera which acquires video data in a visual field range; the conversion module 200 transmits the video data to the LORA gateway 300 through a standard LoRaWAN protocol, and the conversion module 200 is connected to the MCU module 500 through SPI communication.
Referring to fig. 2, in some embodiments of the invention, the system further comprises: and the storage module 600, the storage module 600 is connected with the MCU module 500, and is used to store the video data acquired by the acquisition module 100. Here, the capture module 100 transmits the captured video data to the MCU module, and the MCU module stores the video data in the storage module 600, and stores and backs up the video data.
Referring to fig. 2, further, the system further includes an encryption module 700, where the encryption module 700 is connected to the storage module 600 and the MCU module 500, and is configured to encrypt the video data stored in the storage module 600. The system can be applied to the monitoring field, so that the encryption module 700 is arranged to encrypt the video data, and the video data can be prevented from being illegally stolen. Here, the video data may be encrypted using an encryption algorithm such as DES, 3DES, and AES.
Referring to fig. 2, in some embodiments of the invention, the system further comprises: and the display module 800, the display module 800 is connected with the MCU module 500, and is configured to display the video data acquired by the acquisition module 100 in real time. Here, the capture module 100 transmits the captured video data to the MCU module, and the MCU module transmits the video data to the display module 800 to display the video data in real time.
In some embodiments of the present invention, the LoRa gateway has a plurality of external communication interfaces thereon, where the external communication interfaces include an ethernet interface and a GPRS interface. It should be understood that RS232 interface, RS485 interface, etc. may also be included here. Further, the LoRa gateway communicates with the outside through a TCP or UDP communication method using an ethernet interface and a GPRS interface. For example: the Server or the terminal communicates with the Server or the terminal through an Ethernet path or GPRS, and the terminal can be a mobile phone, a computer and the like.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. The utility model provides a video data collection system based on loRa wireless transmission which characterized in that includes: the system comprises an acquisition module (100), a conversion module (200), an LoRa gateway (300), a server (400) and an MCU module (500);
the acquisition module (100) is connected with the conversion module (200) and is used for acquiring video data in real time and sending the video data to the conversion module (200); the conversion module (200) is connected with the LoRa gateway (300) and is used for converting the video data into LoRa video data; the LoRa gateway (300) is connected with the server (400) and used for sending the LoRa video data to the server (400); MCU module (500) is used for control acquisition module (100) is data, control in real time conversion module (200) will video data convert loRa video data and control loRa gateway (300) will loRa video data send to server (400).
2. The video data acquisition system based on LoRa wireless transmission of claim 1, further comprising a storage module (600), wherein the storage module (600) is connected to the MCU module (500) for storing the video data.
3. The video data acquisition system based on LoRa wireless transmission of claim 2, further comprising an encryption module (700), wherein the encryption module (700) is connected to the storage module (600) and the MCU module (500) for encrypting the video data stored in the storage module (600).
4. The video data acquisition system based on LoRa wireless transmission as claimed in claim 1, further comprising a display module (800), wherein the display module (800) is connected to the MCU module (500) for displaying the video data in real time.
5. The video data acquisition system based on LoRa wireless transmission of claim 1, wherein the LoRa gateway (300) has a plurality of external communication interfaces thereon, and the external communication interfaces comprise at least an ethernet interface and a GPRS interface.
6. The video data acquisition system based on LoRa wireless transmission of claim 5, wherein the LoRa gateway (300) communicates with the outside via TCP or UDP communication using the ethernet interface.
7. The video data acquisition system based on LoRa wireless transmission of claim 5, wherein the LoRa gateway (300) communicates with the outside via TCP or UDP communication using the GPRS interface.
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| CN201911293024.XA CN111064929A (en) | 2019-12-16 | 2019-12-16 | Video data acquisition system based on LoRa wireless transmission |
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| CN201911293024.XA CN111064929A (en) | 2019-12-16 | 2019-12-16 | Video data acquisition system based on LoRa wireless transmission |
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