Infrared remote control for soil compacting devices
First Claim
1. A method of remote-controlling a self-propelled soil compacting device, said method comprising the steps of:
- emitting an electromagnetic control radiation in the infrared range from a sending unit that is separate from the soil compacting device;
modulating the electromagnetic control radiation to produce a modulated electromagnetic control radiation in correspondence to an electric control signal to be transmitted to the soil compacting device;
receiving the electromagnetic control radiation at a receiving unit provided at the soil compacting device;
generating the electric control signal corresponding to the modulated electromagnetic control radiation for controlling the soil compacting device;
sending alternatingly with the electromagnetic control radiation an electromagnetic short range radiation in the infrared range having an intensity that is substantially smaller than the intensity of the electromagnetic control radiation;
coding into the electromagnetic control radiation a first address code and into the electromagnetic short range radiation a second address code, wherein the first and the second address codes differ from one another and are decoded within the receiving unit;
directing the electromagnetic control radiation according to the first address code into a first channel and the electromagnetic short range radiation according to the second address code into a second channel, wherein the first channel is blocked for the electromagnetic short range radiation and the second channel is blocked for the electromagnetic control radiation; and
blocking with the electromagnetic short range radiation the release of predetermined control signals within the receiving unit, when the electromagnetic short range radiation is received within the receiving unit with an intensity that is above a predetermined threshold.
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Accused Products
Abstract
An infrared remote-controlled soil compacting device is controlled such that the device cannot be set into operation as long as the operator with the sending unit is within close vicinity of the soil compacting device so that an accidental operation or propelling in the wrong direction is prevented. This is achieved by providing an infrared close range radiation in addition to the infrared control radiation required for the operational control of the device. The close range radiation has a substantially reduced intensity relative to the control radiation so that the close range radiation can be received within the receiving unit only within close vicinity of the sending unit. When the close range radiation is received within the receiving unit the generation or release of electric signals affecting propelling of the soil compacting device is suppressed.
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Citations
17 Claims
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1. A method of remote-controlling a self-propelled soil compacting device, said method comprising the steps of:
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emitting an electromagnetic control radiation in the infrared range from a sending unit that is separate from the soil compacting device; modulating the electromagnetic control radiation to produce a modulated electromagnetic control radiation in correspondence to an electric control signal to be transmitted to the soil compacting device; receiving the electromagnetic control radiation at a receiving unit provided at the soil compacting device; generating the electric control signal corresponding to the modulated electromagnetic control radiation for controlling the soil compacting device; sending alternatingly with the electromagnetic control radiation an electromagnetic short range radiation in the infrared range having an intensity that is substantially smaller than the intensity of the electromagnetic control radiation; coding into the electromagnetic control radiation a first address code and into the electromagnetic short range radiation a second address code, wherein the first and the second address codes differ from one another and are decoded within the receiving unit; directing the electromagnetic control radiation according to the first address code into a first channel and the electromagnetic short range radiation according to the second address code into a second channel, wherein the first channel is blocked for the electromagnetic short range radiation and the second channel is blocked for the electromagnetic control radiation; and blocking with the electromagnetic short range radiation the release of predetermined control signals within the receiving unit, when the electromagnetic short range radiation is received within the receiving unit with an intensity that is above a predetermined threshold. - View Dependent Claims (2, 3, 4)
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5. A device for remote-controlling a self-propelled soil compacting device, said device comprising:
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a sending unit that is separate from the soil compacting device, said sending unit having a means for emitting an electromagnetic control radiation in the infrared range and a means for modulating said electromagnetic control radiation to produce a modulated electromagnetic control radiation in correspondence to an electric control signal to be transmitted to the soil compacting device; a receiving unit provided at the soil compacting device, said receiving unit having a means for receiving said electromagnetic control radiation and a means for generating the electric control signal corresponding to the modulated electromagnetic control radiation for controlling the soil compacting device; said sending unit comprising means for emitting an electromagnetic short range radiation in the infrared range having an intensity that is substantially smaller than an intensity of said electromagnetic control radiation and a means for sending alternatingly said electromagnetic control radiation and said electromagnetic short range radiation; said sending unit further comprising means for coding into said electromagnetic control radiation a first address code and a means for coding into said electromagnetic short range radiation a second address code, wherein said first and said second address codes differ from one another; said receiving unit further comprising means for receiving said electromagnetic short range radiation and means for differentiating between said electromagnetic control radiation and said electromagnetic short range radiation; and said receiving unit further comprising means for blocking with said electromagnetic short range radiation the release of predetermined control signals within said receiving unit. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification