Network access method and device used for Internet of Things (IoT) equipment and IoT equipment
A technology for network access and Internet of Things, which is applied in the field of Internet of Things IoT devices, and can solve the problems of complex Internet access for IoT devices.
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Embodiment 1
[0033] figure 1 It is a schematic structural diagram of an example network access device 10 for IoT devices according to an embodiment of the present invention, as shown in figure 1 As shown, the apparatus may include: a photodetector 1 configured to receive a visible light signal and convert the visible light signal into a first electrical signal, wherein the visible light signal includes information associated with the network to be connected to the IoT device ; Amplifying circuit 2, for amplifying the first electrical signal into a second electrical signal; Comparing circuit 3, for converting the second electrical signal into a digital signal; Processing module 4, for converting the digital signal Decoding to obtain the information; and a communication module 5, configured to access the network according to the information, wherein the photodetector 1, the amplification circuit 2, the comparison circuit 3, and the processing module 4 , and the communication modules 5 are s...
Embodiment 2
[0042] figure 2 It is a schematic structural diagram of an example network access device 10 for IoT devices according to an embodiment of the present invention, as shown in figure 2 As shown, only the difference between Embodiment 2 and Embodiment 1 is shown, that is, the device may further include: a filter circuit 6, which may be configured to: be connected in series with the photodetector Between 1 and the amplifying circuit 2, it is used for filtering the first electrical signal, so as to filter out noise in the signal and improve the signal-to-noise ratio of the signal. Wherein, the filter circuit 6 can be an active low-pass filter circuit composed of an operational amplifier, or a passive low-pass filter circuit composed of resistors and capacitors, or a band-pass filter circuit.
[0043] In this embodiment 2, the first electrical signal is filtered by the filter circuit 6 and then amplified as the second electrical signal as the input of the amplifying circuit 2, and t...
Embodiment 3
[0045] image 3 It is a schematic structural diagram of an example network access device 10 for IoT devices according to an embodiment of the present invention, as shown in image 3 As shown, only the difference between Embodiment 3 and Embodiment 1-2 is shown, that is, the device may further include: a filter circuit 6, which may be configured to: be connected in series to the amplifier Between the circuit 2 and the comparison circuit 3, it is used to filter the second electrical signal, so as to filter out the noise in the signal and improve the signal-to-noise ratio of the signal. Wherein, the filter circuit 6 can be an active low-pass filter circuit composed of an operational amplifier, or a passive low-pass filter circuit composed of resistors and capacitors, or a band-pass filter circuit.
[0046] In Embodiment 3, the second electrical signal is filtered by the filter circuit 6 and used as the input of the comparison circuit 3 , and the subsequent signal transmission an...
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