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US 9,891,606 B2Granted
Method and system for transmitting position switch status signal
AssigneeGRG Banking Equipment Co., Ltd.
InventorPing Gao
Life of this patent
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Abstract
A system for transmitting a position switch status signal, comprises a signal output unit, a first converting apparatus, a second converting apparatus, and a control unit. Status signals of position switches are outputted by the signal output unit, parallel status signals are converted into parallel first current signals by using the first converting apparatus, currents in the first current signals are summated to obtain a second current signal, and digital status signals of the position switches are restored by using the second converting apparatus and the control unit. Also provided is a method for transmitting a position switch status signal.
Claims11
A system for transmitting state signals of position switches, comprising:
- a signal outputting unit configured to output state signals for respective position switches;
- a first conversion device connected to the signal outputting unit, wherein the first conversion device is configured to convert, according to a preset rule, state signals greater than a threshold into first current signals with nonzero current value which have one-to-one correspondence to the state signals greater than the threshold, and output a second current signal acquired by summing currents of the first current signals;
- a second conversion device configured to receive the second current signal through a cable, and convert the second current signal into a digital voltage signal;
- and
- a control unit configured to receive the digital voltage signal, and restore the digital state signals for respective position switches;
- wherein the first conversion device comprises:
- conversion units connected in parallel, the conversion units being connected in one-to-one manner to the position switches numbered N, wherein N is a natural number, N=1, 2, 3, . . . n, n is a quantity of the position switches, and
- the conversion unit comprises:
- a switch unit connected to the position switch numbered N, wherein the switch unit is configured to receive and detect the state signal of the position switch, and if the state signal is greater than the threshold, the switch unit is turned on;
- and
- a resistor unit connected to the switch unit and corresponding to the position switch numbered N, wherein the resistor unit has a resistance of R*ZM+N, and is configured to:
- after the switch unit is turned on, convert, according to the preset rule, the state signal greater than the threshold into the first current signal with nonzero current value corresponding to the state signal greater than the threshold, wherein R is an arbitrary real number, Z is a natural number greater than 1, and M and N are natural numbers.
9 more elements
A method for transmitting state signals of position switches, comprising:
- receiving state signals for respective position switches;
- converting, by a first conversion device, according to a preset rule, state signals greater than a threshold into first current signals with nonzero current value which have one-to-one correspondence to the state signals greater than the threshold;
- summing by a first conversion device, currents of the first current signals as a second current signal;
- converting, by a second conversion device, the second current signal into a digital voltage signal;
- and
- restoring, a control unit, the digital state signals for respective position switches from the digital voltage signal;
- wherein the first conversion device comprises:
- conversion units connected in parallel, the conversion units being connected in one-to-one manner to the position switches numbered N, wherein N is a natural number, N=1, 2, 3, . . . n, n is a quantity of the position switches, and
- the conversion unit comprises:
- a switch unit connected to the position switch numbered N, wherein the switch unit is configured to receive and detect the state signal of the position switch, and if the state signal is greater than the threshold, the switch unit is turned on;
- and
- a resistor unit connected to the switch unit and corresponding to the position switch numbered N, wherein the resistor unit has a resistance of R*ZM+N, and is configured to:
- after the switch unit is turned on, convert, according to the preset rule, the state signal greater than the threshold into the first current signal with nonzero current value corresponding to the state signal greater than the threshold, wherein R is an arbitrary real number, Z is a natural number greater than 1, and M and N are natural numbers.
10 more elements
Dependencies are inferred from the claim text.