System capable of suppressing attenuation of power carrier signal
A power carrier and signal attenuation technology, applied in the field of systems that can suppress power carrier signal attenuation, can solve problems such as real-time monitoring and copying of user power parameters, achieve reliable transmission, suppress power carrier signal attenuation, and solve network disconnection The effect of dropped
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Embodiment 1
[0040] After a lot of research, it is found that the main reasons for the failure of power carrier communication are as follows: After the carrier signal sent by the power carrier terminal is sent to the power line through the coupling circuit, under the influence of user load, interference signal, line impedance and other factors, the carrier signal At the receiving end, the level of the carrier signal is very small or even zero, which leads to communication failure. Among these influencing factors, the consumption of the carrier signal by the user load plays a decisive role.
[0041] Such as figure 1 As shown, taking the low-voltage line as an example, Ri represents the user load, and there are two AC signals added to the power line, one is AC220V / 50Hz power signal, and the other is the power generated by carrier terminal 1 and carrier terminal 2 during interactive communication Carrier signal, the frequency of power carrier signal depends on the type of carrier module, the...
Embodiment 2
[0057] Such as Figure 5 As shown in the figure, adding a magnetic bead between the carrier terminal and the user load, the magnetic bead will generate impedance to the carrier signal, so as to avoid the attenuation of the carrier signal on the user load.
Embodiment 3
[0059] Such as Image 6 As shown in the figure, a reactor is added between the carrier terminal and the user load, and the reactor will generate impedance to the carrier signal, so as to avoid the attenuation of the carrier signal on the user load.
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