DEVICE FOR AUTONOMOUS DETERMINATION OF DISTANCE TRAVELLED BY GROUND VEHICLE Russian patent published in 2022 - IPC G01C22/00 

FIELD: instrumentation.

SUBSTANCE: invention relates to instrument engineering and can be used in systems for autonomous determination of the distance travelled by a ground vehicle. Device for autonomous determination of distance travelled by ground vehicle comprises mechanical speed sensor, optoelectronic speed sensor, pulse generator, pulse counter, calculator, integrator, first AND logic circuit, first trigger. In this case, the second pulse generator, the second and third AND logic circuits, the dual comparator and the second flip-flop are additionally introduced, wherein the output of the second generator is connected to the second input of the first AND logic circuit, and the first output of the computer is connected to its first input, and its output is connected to the third input of the optoelectronic speed sensor, to the fourth input of which the second output of the computer is connected, and sensitive elements are connected to the first and second inputs of the optoelectronic speed sensor. At that, the dual comparator is connected by the first and second inputs to the first and second outputs of the optoelectronic speed sensor, by its first and second outputs it is connected to the inputs of the first and second flip-flops, respectively, output of the first flip-flop is connected to the first inputs of the second and third logic circuits, and the first output of the second flip-flop is connected to the second input of the third logic circuit and its second output is connected to the second input of the second logic circuit, wherein the third input of the second logic circuit is connected to the output of the first generator, and the output of the third logic circuit and the output of the second logic circuit are connected to the first and second inputs of the pulse counter, which output is connected to the first input of the computer, and its second input is connected to the output of the mechanical speed sensor, wherein the output of the computer is connected to the input of the integrator, the output of which is the output of the device.

EFFECT: high accuracy compared to systems where mechanical and optoelectronic speed sensors are used to measure the distance travelled without additional hardware for monitoring parameters of the measured signals.

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