Direct current carrier wave communication device, method and communication system
A technology of DC carrier and communication device, applied in the field of DC carrier communication device, can solve the problems of complex circuit, large circuit occupation area and high cost, and achieve the effect of realizing bidirectional transmission and small circuit occupation area
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Embodiment 1
[0045] Please refer to the attached figure 1 , is a schematic structural diagram of a DC carrier communication device provided by the present invention, including: a three-winding transformer 7, a first switch drive module 3, a second switch drive module 4 and a processor 5, wherein the second switch drive module 4 Including transceiver control module 8.
[0046] Specifically, the first winding of the above-mentioned three-winding transformer is connected in series to the DC power line for signal coupling. The above-mentioned first switch driving module is connected in series with the second winding of the above-mentioned three-winding transformer, and is used for coupling the generated first current pulse signal to the above-mentioned DC power line according to the received first control signal generated by the above-mentioned processor.
[0047] The second switch drive module is connected to the third winding of the three-winding transformer, and is used to receive the seco...
Embodiment 2
[0050] On the basis of the first embodiment above, this embodiment is figure 2 As shown, it includes: a three-winding transformer 7, a first switch drive module 3, a second switch drive module 4 and a processor 5, wherein the second switch drive module 4 includes a transceiver control module 8, and the processor 5 includes a timing module 9 . In this embodiment, the circuit composed of the first switch driving module 3 and the resistor is defined as the sending unit 1 , and the circuit composed of the transceiver control module 8 , the second switch driving module 4 and the resistor is defined as the receiving unit 2 .
[0051] One difference between this embodiment and the embodiment is that a preferred embodiment of the processor is given, and the connection relationship and working principle of other devices are similar to the first embodiment, which is:
[0052] The first winding of the three-winding transformer is connected in series to the DC power line for signal coup...
Embodiment 3
[0060] On the basis of the above embodiments, this embodiment provides a specific DC carrier communication device, the structure diagram of which is as follows image 3 shown. It includes: a three-winding transformer 7 , a first triode 10 , a second triode 12 and a processor 5 , wherein the receiving unit 2 includes a diode 8 and the processor 5 includes a timing module 9 . In this embodiment, the circuit composed of the first triode 10 and the resistor is defined as the sending unit 1 , and the circuit composed of the diode 11 , the second triode 12 and the resistor is defined as the receiving unit 2 .
[0061] In order to prevent transmission and reception from interfering with each other, the present invention prevents the signal sent by the DC carrier communication device from being received by its own receiving unit by making the phase of the pulse signal generated by the sending unit opposite to that of the pulse signal that the receiving unit can process. In this embod...
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