The goal of this paper is to introduce the idea of using the visual property of texture to design an autonomous lawnmower robot that mows a lawn similar to how a human would (in some type of pattern.) Previous autonomous lawnmowers that have been designed, the LawnNibbler and LawnShark for example, rely on the principle of randomness to mow in a confined area.
This paper first presents an overview of texture segmentation and then the wavelet transform is introduced.
This could be mowing in a plow type fashion (going back and forth) or starting at the outside of the perimeter of the mowing area and then working towards the center of the mowing area.
The theory behind wavelets is quite complex.
However, the wavelet can be simply thought of as a band-pass filter.
apr12
Most of us don't think of garden equipment as causing air pollution, but most small engines found in lawnmowers, leaf blowers and weed trimmers have no emission controls and are real smog producers.
To a lesser extent, they are also responsible for greenhouse gas emissions that lead to climate change.
A typical, older 3.5 horsepower lawnmower engine can emit the same amount of VOCs in an hour as a new car driven 500 km. Gasoline spills are also a major problem.
Although electricity production results in smog, far less smog is produced than would result from using a gas-powered mower for the same lawn.
report
A short summary of previous work in autonomous lawnmowers and self-driving tractors is presented.
A new solution is proposed, based on the Behaviour Based approach to robotics developed at MIT.
By permitting the simulated robot to wander randomly, then adding behaviours for goal selection, goal seeking, and obstacle marking, a lawnmower which is both ecient and e ective can be created.
A status report on autonomous guidance of agricultural vehicles in the US: New frontiers in the 21st century.
Engineers develop tractor with everything but driver.
In Proceedings of the 1991 International Joint Conference on Arti cial Intelligence, pages 569{595, 1991.
d001076 http://www.cdc.gov/nasd/docs/d001001-d001100/d001076/d001076.pdf
It was 12-year-old Bill's turn to mow.
The mower threw the toy and it flew across the yard, hitting his sister in the eye.
Mowing and maintenance around farm buildings and equipment is almost a yearround task, often one of the first farm chores delegated to young family members.
Because mowing consumes so much time and routinely involves inexperienced operators, safety is a real concern.
The cutting edge of the mower blade can travel at speeds of up to 200 miles per hour.
The muffler and cylinder head heat up during operation, and remain hot for some time after the engine has been turned off.
Solano_Co._Rebate http://www.abag.ca.gov/bayarea/grass/resources/Solano_Co._Rebate.pdf
Toro or Lawnboy 24-volt electric battery mulching lawnmower.
gasoline power mower to one of the participating dealers.
Buyers need to show ID to prove residency in Solano County.
Grasscycling is the natural recycling of grass by leaving clippings on the lawn when mowing.
Research has shown that grass roots are the primary cause of thatch build up, not grass clippings.
Mulching mowers cut up grass into finer pieces so that it decomposes quickly but you can grasscycle with any mower if you follow proper mowing techniques.
Proper mowing techniques: Cut grass when the surface is dry and keep mower blades sharp.
lawnmower http://www.cleanaircounts.org/Resource Package/Quant/lawnmower.pdf
Lawn equipment accounts for more than 60 tons per day of the region's VOCs.
Two and 4 cycle gasoline equipment is approximately 50% of this total.
Thus a program that focuses on phasing out old equipment, particularly mowers, in favor of newer, electric equipment and even push mowers could significantly impact the region's emissions.
Lawn equipment buy-back programs provide financial incentives to individuals to trade-in their old equipment in exchange for new, lower emissions equipment.
Individuals in the six-county region with gasoline powered lawn equipment would exchange their old equipment for a $50-$100 rebate toward the purchase of new electric lawn mowers, lawn equipment and push mowers.
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The Metropolitan Mayors Caucus (MMC), a group of 269 Chicago-area municipalities working together on regional issues, proposes a program to eliminate a persistent source of pollution in the Lake Michigan basin.
Lawn equipment contributes other pollutants as well, many of which wind up in Lake Michigan via air deposition.
The events will be held throughout the six county region and we will track the number and type of mowers retired to facilitate emissions reduction calculations.
The program will directly address the delay in phasing out old lawn equipment by offering an incentive for citizens to retire their gasoline powered lawnmowers.
Lawnmower Burns color
Fire and burn-related injuries were the sixth leading cause of unintentional injury death in the United States from 1996 to 1998 for persons of all ages.
In November 1986, the Oklahoma State Department of Health made burn/smoke inhalation injuries that resulted in hospitalization or death a reportable condition.
During the 13-year period 1988 to 2000, 6,373 Oklahomans were hospitalized in a burn center or died as a result of an unintentional burn or smoke inhalation injury.
Of these, 42 (including 5 deaths) were due to injuries incurred from a lawnmower.
2. < Always mow across slopes and inclines when using a walk-behind mower.
lawnmowersafety
Here are some safety tips to help keep you safe while using an electric or gas mower.
Before using a lawn mower, clear all debris, rocks, twigs and toys from the lawn.
Make sure to remove the spark plug before cleaning the mower housing and before making any repairs or inspections.
Turning the blade is extremely dangerous; it can have the same effect as pulling the start cord.
Remember; although an engine has been shut off, even a slight movement of the blade can restart the engine.
Perhaps you are considering an old-fashioned push mower as an environmentally friendly, cheaper and possibly safer alternative to the power mowerone, which will provide some exercise.
lawnmower_rebate
The Lawn Care for Cleaner Air Lawnmower Rebate Program is offering the following lawn mower rebate options: $100 rebate: Trade in a used gasoline mower for electric mower (cordless or corded).
Be a resident of Louisville Metro/Jefferson County Purchase a new or Factory Reconditioned electric lawnmower or a new push/reel mower from a retailer in the Louisville metropolitan area, including Jefferson and surrounding counties, between March 1 and December 31, 2003 and save the receipt Deliver the used mower (drained of all fluids) to one of these recycling centers, 10:00 a.m. to 5:00 p.m., Tuesday through Saturday (except holiday weekends), April 15, 2003 through January 15, 2004.
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