Patent ID: 9282023
Filing Date: 2016-03-08
CPC Classification: H04L

Claim Text:
1. A resistance arranging system based on a RS-485 network, comprising: a resistor series, comprising a pull-down resistor, a first switch, a second switch, a terminal resistor, a third switch and a push-up resistor in series, wherein the first, second and third switches are electrically connected as a predetermined open-circuit; a packet generating module, generating a detection packet after receiving a trigger signal from an external component; a transmission module, electrically connected with the packet generating module, and used for transmitting the detection packet through a transmitter and receiving the detection packet through a receiver at the same time by using a circuit loop; and a comparison module, electrically connected with the transmission module and the resistor series, and used for taking the generated detection packet as a basis signal and taking the received detection packet by using the circuit loop as a comparison signal, wherein the first and third switches are electrically connected as a short-circuit state so as to activate the push-up and pull-down resistors when the comparison signal has a signal width distortion smaller or larger than that of the basis signal, and the second switch is electrically connected as a short-circuit so as to activate the terminal resistor when the comparison signal comprises a redundant reflection signal or the comparison signal has a signal width equating a predetermined range of signal width.