Data acquisition system and data acquisition method based on FSK

A data acquisition system and data technology, applied in the direction of data exchange through path configuration, star/tree network, etc., can solve the problem of high cost, and achieve the effect of super equipment cost, expansion of coverage area, and low equipment power consumption

Inactive Publication Date: 2017-04-26
中山大学花都产业科技研究 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For IoT nodes that require wide-area coverage, and for application scenarios where some nodes are gathered, such as water meter reading, etc., the connection between water meters in a building usually does not exceed a distance of 10 meters. In this case, if LPWA is directly used Wide area technology, the cost is too high

Method used

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  • Data acquisition system and data acquisition method based on FSK
  • Data acquisition system and data acquisition method based on FSK
  • Data acquisition system and data acquisition method based on FSK

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0057] This embodiment mainly uses FSK to connect with LoRa to realize data collection and transmission. Specifically, see figure 1 , which is a block diagram of an FSK-based data acquisition system according to an embodiment of the present invention.

[0058] A FSK-based data acquisition system in this embodiment includes an FSK module 1, a LoRa module 2 and a LoRa gateway 3.

[0059] The FSK module 1 is used to receive data from the terminal and send it to the LoRa module. Specifically, in this embodiment, the terminal may be: a water meter, an electric meter, and other devices with a relatively short distribution distance.

[0060] The LoRa module 2 is used to send the collected data to the LoRa gateway.

[0061] The LoRa gateway 3 is used to send data to the network server.

[0062] Wherein, the FSK module 1 includes a signal sending end 11 and a signal receiving end 12 .

[0063] Please also see figure 2 , which is a schematic diagram of FSK signal transmission in ...

Embodiment 2

[0082] This embodiment mainly uses FSK to connect with NB-IoT to realize data collection and transmission. Specifically, see Figure 6 , which is a block diagram of an FSK-based data acquisition system according to an embodiment of the present invention.

[0083] The present invention also provides another FSK-based data acquisition system, which includes an FSK module 1 and an NB-IoT module 4 .

[0084] The FSK module 1 is used to receive terminal data and send it to the NB-IoT module 4;

[0085] The NB-IoT module 4 is used to send data to a network server.

[0086] In the same way, it is the same as Embodiment 1, please also refer to figure 2 , which is a schematic diagram of FSK signal transmission in the present invention.

[0087] The signal sending end includes an encoder 11 , an FSK modulation module 12 , a DAC conversion module 13 and a radio frequency sending module 14 . The encoder 11 is used to encode the received signal to generate a digital signal. The FSK ...

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Abstract

The invention provides a data acquisition system based on FSK, wherein a two-grade star-shaped network is utilized. In a first-grade star-shaped network, nodes are connected through Lora or NB-IoT technology. For a local aggregation part, FSK technology is utilized for realizing second-grade star-shaped connection, and main nodes of the second-grade star-shaped network is used as sub nodes in the first-grade star-shaped network. The main nodes of the second-grade star-shaped network are connected with the first-grade star-shaped network, thereby realizing a purpose of data transmission.

Description

technical field [0001] The invention relates to a data acquisition system, in particular to an FSK-based data acquisition system and method. Background technique [0002] Low-power wide-area technology (Low-Power Wide-Area, LPWA) is a wireless data transmission technology developed specifically for the above application requirements, which can well meet the needs of agricultural Internet of Things traceability applications. LPWA has three notable features: long-distance communication, low-speed data transmission, and low power consumption, so it is very suitable for IoT applications that require long-distance transmission, less communication data, and long-term battery power. [0003] For IoT nodes that require wide-area coverage, and for application scenarios where some nodes are gathered, such as water meter reading, etc., the connection between water meters in a building usually does not exceed a distance of 10 meters. In this case, if LPWA is directly used Wide area tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/44
CPCH04L12/44
Inventor 徐永键徐广健陆许明谭洪舟
Owner 中山大学花都产业科技研究
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