1. A device for cleaning a ground surface of artificial turf with filler, comprising:
a frame,
moving and supporting means arranged on the frame for the purpose of moving the device over the ground surface, so as to process a flow of material taken up from the ground surface, said material comprising dirt and said filler,
a take-up means arranged on the frame for taking up material from the ground surface into the device,
a grating, wherein said grating is arranged downstream of the take-up means for separating the filler from the taken-up material, thereby creating a substantial amount of dust,
a collecting means arranged downstream of the grating for collecting the dirt,
a feedback means arranged downstream of the grating for feedback of the separated filler to the ground surface, and
a dust suction device, wherein the dust suction device comprises at least a pump means for creating an underpressure and a dust inlet which is connected to a suction side of the pump means and which is arranged directly above the grating so as to capture the dust created at the grating.
2. The device of claim 1, wherein the device comprises a processing chamber to which material from the ground surface can be fed with the take-up means, wherein the grating forms a wall of the processing chamber, and wherein the processing chamber is further provided with a discharge to the collecting means.
3. The device of claim 2, wherein the dust inlet is connected to the processing chamber.
4. The device of claim 1, wherein the dust inlet is formed by a gap oriented toward the grating.
5. The device of claim 4, wherein the grating extends in a width direction of the device transversely of the flow direction of the material, and that the gap similarly extends in the width direction and is oriented toward the grating.
6. The device of claim 1, wherein a distribution chamber is formed between the suction side of the pump means and the dust inlet.
7. The device of claim 6, wherein a dust bag is accommodated between the pump means and the distribution chamber.
8. The device of claim 1, wherein the grating is arranged tiltably in the device for the purpose of adjusting a degree of cleaning.
9. The device of claim 1, wherein a dust bag is accommodated between the pump means and the dust inlet.
10. The device of claim 1, wherein the take-up means is a brush accommodated in the device and bearing-mounted on the frame.
11. The device of claim 1, wherein a transmission is arranged on the frame and is coupled to the take-up means, the pump means and the grating.
12. The device of claim 1, wherein the device comprises coupling means for coupling the device to a drive vehicle.
13. A method for cleaning a ground surface of artificial turf with filler, comprising:
moving a device over the ground surface;
taking up material from the ground surface into the device, said material comprising dirt and said filler;
separating the filler from the taken-up material through a grating, said separating resulting in creation of dust;
collecting the dirt;
feeding back the separated filler to the ground surface;
creating an underpressure through a dust inlet arranged directly above the grating so as to capture the dust created during the separating.
14. The method of claim 13, wherein the dust is captured in a dust bag.
15. A device for cleaning a ground surface of artificial turf with filler, comprising:
a frame,
moving and supporting means arranged on the frame for the purpose of moving the device over the ground surface, so as to process a flow of material taken up from the ground surface, said material comprising dirt and said filler,
a take-up means arranged on the frame for taking up material from the ground surface into the device,
a shaker screen, wherein the shaker screen is configured to execute a reciprocal movement,
a grating, wherein said grating is arranged downstream of the take-up means for separating the filler from the taken-up material and below the shaker screen, thereby creating a substantial amount of dust,
a collecting means arranged downstream of the grating for collecting the dirt,
a feedback means arranged downstream of the grating for feedback of the separated filler to the ground surface, and
a dust suction device, wherein the dust suction device comprises at least a pump means for creating an underpressure and a dust inlet which is connected to a suction side of the pump means and which is arranged directly above the grating so as to capture the dust created at the grating.
16. The device of claim 15, wherein the shaker screen is configured to move at least partially over the grating by the movement of the shaker screen.
17. The device of claim 15, wherein the dust inlet is formed by a gap oriented toward the grating.
18. The device of claim 15, wherein the grating extends in a width direction of the device transversely of the flow direction of the material, and that the gap similarly extends in the width direction and is oriented toward the grating.
19. The device of claim 15, wherein the grating is configured to be parallel to the ground when the moving means are in contact with the ground and the grating is configured to be tiltable for the purpose of adjusting a degree of cleaning.
20. The device of claim 15, wherein the device comprises a processing chamber to which material from the ground surface can be fed with the take-up means, wherein the grating forms a wall of the processing chamber, and wherein the processing chamber is further provided with a discharge to the collecting means.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A die having an operating condition, the die comprising:
an output bus; and
a speed-locked loop to provide on the output bus a value indicative of the operating condition, the speed-locked loop comprising:
an oscillator having a frequency;
a counter to count cycles of the oscillator occurring throughout a counting time interval to provide a counter value indicative of the oscillator frequency;
an input bus having a set of voltages representing an input bus value;
a comparator to compare the counter value to the input bus value; and
a control functional unit to decrease the oscillator frequency if the counter and input bus values satisfy a first relationship and to increase the oscillator frequency if the counter and input bus values satisfy a second relationship,
wherein the set of voltages on the input bus is static during the counting time interval.
2. The die as set forth in claim 1, wherein the speed-locked loop provides a ready signal indicative of whether the speed-locked loop has attained lock, the die further comprising:
a speed-compensating circuit responsive to the output bus value if the ready signal indicates lock.
3. The die as set forth in claim 2, the speed-compensating circuit having an operating speed, the speed-compensating circuit comprising:
a plurality of parallel-connected devices, wherein a number of the plurality of parallel-connected devices are enabled in response to the output bus value, wherein the operating speed increases as the number of enabled parallel-connected devices increases.
4. The die as set forth in claim 1, wherein the counter and input bus values have the first relationship if and only if the input bus value is greater than or equal to the counter value and have the second relationship if and only if the input bus value is less than the counter value.
5. A die having an operating condition, the die comprising:
an output bus;
a speed-locked loop to provide on the output bus a value indicative of the operating condition and to provide a ready signal indicative of whether the speed-locked loop has attained lock; and
a speed-compensating circuit responsive to the output bus value if the ready signal indicates lock;
wherein the speed-locked loop comprises:
an oscillator having a frequency;
a counter to provide a value indicative of the oscillator frequency;
an input bus having a set of voltages representing an input bus value;
a comparator to compare the counter value to the input bus value; and
a control functional unit coupled to the oscillator to decrease the oscillator frequency if the counter and input bus values satisfy a first relationship and to increase the oscillator frequency if the counter and input bus values satisfy a second relationship.
6. The die as set forth in claim 5, the speed-compensating circuit having an operating speed, the speed-compensating circuit comprising:
a plurality of parallel-connected devices, wherein a number of the plurality of parallel-connected devices are enabled in response to the output bus value, wherein the operating speed increases as the number of enabled parallel-connected devices increases.
7. The die as set forth in claim 5, wherein the counter and input bus values have the first relationship if and only if the input bus value is greater than or equal to the counter value and have the second relationship if and only if the input bus value is less than the counter value.
8. A die having an operating condition, the die comprising:
an output bus; and
a speed-locked loop to provide on the output bus a value indicative of the operating condition, the speed-locked loop comprising:
an oscillator having a frequency;
a counter to provide a counter value indicative of the oscillator frequency;
an input bus having a set of voltages representing an input bus value;
a comparator to compare the counter value to the input bus value; and
a control functional unit to decrease the oscillator frequency if the counter and input bus values satisfy a first relationship and to increase the oscillator frequency if the counter and input bus values satisfy a second relationship,
wherein the set of voltages on the input bus is static during normal operation of the die.
9. The die as set forth in claim 8, wherein the speed-locked loop provides a ready signal indicative of whether the speed-locked loop has attained lock, the die further comprising:
a speed-compensating circuit responsive to the output bus value if the ready signal indicates lock.
10. The die as set forth in claim 9, the speed-compensating circuit having an operating speed, the speed-compensating circuit comprising:
a plurality of parallel-connected devices, wherein a number of the plurality of parallel-connected devices are enabled in response to the output bus value, wherein the operating speed increases as the number of enabled parallel-connected devices increases.
11. The die as set forth in claim 8, wherein the counter and input bus values have the first relationship if and only if the input bus value is greater than or equal to the counter value and have the second relationship if and only if the input bus value is less than the counter value.
12. A die comprising a speed-locked loop, the speed-locked loop comprising:
an input bus having a set of voltages representing an input bus value;
an oscillator to oscillate at a frequency;
a first counter to provide a value indicative of the oscillator frequency;
a second counter having a value, wherein the oscillator is coupled to the second counter to oscillate at a frequency responsive to the second counter value;
wherein the second counter is coupled to the input bus and the first counter to increment if the input bus and first counter values have a first relationship and the second counter value is not at a maximum, and to decrement if the input bus and first counter values have a second relationship and the second counter value is not a minimum;
wherein the second counter oscillates among two values when the speed-locked loop achieves lock;
the speed-locked loop further comprising a latch to latch one of the two values when lock is achieved.
13. The die as set forth in claim 12, further comprising:
a speed-compensating device; and
an output bus to provide the latched value to the speed-compensating device.