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#1
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posted to rec.boats.cruising
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Geoff Schultz wrote in
: You don't need to do this as software on the C120 will allow you to monitor the traffic on the NMEA and SeaTalk busses. I think that you'll find this in the System Integration screen. This is also where you'll see the error counts. If it's not fast enough to render the raster....when does it have time to log data?? |
#2
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posted to rec.boats.cruising
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larry wrote in
: Geoff Schultz wrote in : You don't need to do this as software on the C120 will allow you to monitor the traffic on the NMEA and SeaTalk busses. I think that you'll find this in the System Integration screen. This is also where you'll see the error counts. If it's not fast enough to render the raster....when does it have time to log data?? Why are you making up this kind of statement when you clearly don't have any proof of this. I suspect that he's most likely feeding garbage to the chartplotter and it won't/can't draw the chart, leading to the blanking. I can easily imagine this happening if the lat/long is changing too rapidly for the system to redraw. When the lat/long changes slowly enough, that's when he sees his position jump. You can't expect to feed garbage to a system and have it behave "correctly" when the lat/long change delta exceeds anything reasonable. -- Geoff www.GeoffSchultz.org |
#3
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posted to rec.boats.cruising
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Geoff Schultz wrote in
: Why are you making up this kind of statement when you clearly don't have any proof of this. I suspect that he's most likely feeding garbage to the chartplotter and it won't/can't draw the chart, leading to the blanking. I can easily imagine this happening if the lat/long is changing too rapidly for the system to redraw. When the lat/long changes slowly enough, that's when he sees his position jump. You can't expect to feed garbage to a system and have it behave "correctly" when the lat/long change delta exceeds anything reasonable. He's not in court, yet, so we don't have to "prove" anything to you or anyone. Any REASONABLE system would WARN you that it is receiving "garbage" with some kind of error message on the BLANK SCREENS....instead of just leaving you there, in the dark, wondering if you're gonna run over a rock or bouy.... How slow is slow enough for it to render the chart? 5 seconds? 30? a minute? There's gotta be some kind of ERROR - WARNING timeout, right? I didn't see one in the video, just a blank screen saying nothing.... Today, while letting Navicore plot my course to a country church in the boonies to fix their organ, I was thinking about this thread and those videos how thankful I was my $200 Nokia N800 Linux tablet and $100 Nokia 12-channel WAAS GPS tiny puck laying up on the dash didn't act this way. If I boot Maemo Mapper and steal mosaic data from Micro$oft's Virtual Earth composite through the cell phone, even going through heavy trees and with the roof of the car causing a large obstruction aft of my position from its GPS vantage point on top of the dash, I couldn't help but be pleased as this freeware hacker program downloaded from maemo.org perfectly plotted my course accurate to the center of the lane in the 4- lane highway I was driving down at 60+ mph, far faster than a sailboat needs. http://maemo.org/downloads/product/OS2007/maemo-mapper/ http://en.wikipedia.org/wiki/Nokia_N800 http://www.flickr.com/photos/teddythebear/149479767/ My LD-3W tiny pocket GPS is much more sensitive and accurate than my Garmin 185, even with the new Garmin antenna. It cold starts in about 30 seconds and just simply receives much better than any handheld I've ever owned or seen. Also, being a bluetooth device, separate from the displaying computer, your not forced to have the display anywhere near where there's a clear view to the birds....wirelessly! It runs 15 hours on a charge or you can just leave it plugged into 12V permanently. It uses a common Nokia Li-Ion cellphone battery. I get about 20' range between the units. OK, this ISN'T a marine GPS device. What use is it on the boat?...... Open Google Earth on your computer and zoom in on any waterway with it. Look at the ICW anywhere in the country, for instance. Zoom in close on the ICW and look at the waterway from above..... Now, compare this real satellite photo with the regular old marine chart on your chart plotter. Wouldn't it be great if you could have both? For about $350, you can! The Nokia N800 Linux tablet uses bluetooth to connect to your cellphone and uses the cellphone for internet service...as well as wifi. It's wifi sensitivity FAR exceeds any laptop, too, but that's for the marina, we're in the ICW. If your cellphone can make a call, the internet tablet can connect directly to Google Earth, Virtual Earth and many other feeds for satellite photos, street maps, topographical maps over the cellphone data link. You don't need to buy data plugs with 5-year-old charts on them that are no longer valid, anyways. You don't need to feed Garmin to open up the old charts preprogrammed into last year's handheld or fixed mount. The satellite photos Maemo Mapper operate on are a few months old. It's NOT realtime, but its a helluva lot more up-to-date than that chart plug you just bought from Waste Marine. Zoom Google Earth in on some area from directly overhead and look closely at the waterway. We'll look at the chart to see the bouy positions, which don't change much. We'll look at the satellite photo to see what's up ahead, A REAL PICTURE of it! Imagine Google Earth in portable computer that also PUTS YOU EXACTLY WHERE YOU ARE IN THAT WATERWAY. It's so close you can see yourself changing lanes on the interstate. It's so close you can see which parking space you put the car into in any parking lot. Is that good enough for navigation? Yes, it is. It won't see another boat because it's not realtime. But, it will get you on your side of the channel in the fog. The tablet is also a full-blown Linux computer that will do email, web browsing, run hundreds of programs the hackers have ported to it. It just got Abiword from the Linux community, a full featured word processor (www.abiword.com) Go download the Windows version for your laptop or home computer. It will do things Microsoft Word won't do for FREE! There's a full Gnutella spreadsheet so complex I don't know what all it can do. It came from Linux, too. The tablet can check your email while navigating the waterways on Maemo Mapper, simultaneously. Well, please don't slam me for showing you this. I don't care if you like it or not, really. But, others may find it quite useful, both on the boat and in their world..... |
#4
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posted to rec.boats.cruising
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larry wrote in news:Xns9A366B59EE263noonehomecom@
208.49.80.253: Geoff Schultz wrote in : Why are you making up this kind of statement when you clearly don't have any proof of this. I suspect that he's most likely feeding garbage to the chartplotter and it won't/can't draw the chart, leading to the blanking. I can easily imagine this happening if the lat/long is changing too rapidly for the system to redraw. When the lat/long changes slowly enough, that's when he sees his position jump. You can't expect to feed garbage to a system and have it behave "correctly" when the lat/long change delta exceeds anything reasonable. He's not in court, yet, so we don't have to "prove" anything to you or anyone. Any REASONABLE system would WARN you that it is receiving "garbage" with some kind of error message on the BLANK SCREENS....instead of just leaving you there, in the dark, wondering if you're gonna run over a rock or bouy.... How slow is slow enough for it to render the chart? 5 seconds? 30? a minute? There's gotta be some kind of ERROR - WARNING timeout, right? I didn't see one in the video, just a blank screen saying nothing.... How many systems are out there that wouldn't display an error message? I'd guess that most vendor's systems wouldn't, as they expect the data to be correct. What do you think your RL70 would do if it got bad data? Or a Garmin? Probably the same thing. Expecting the developers to add in code to check for rare events like this just doesn't happen. They have higher priority functions to implement. In my opinion, RayMarine isn't the bad guy here. I think that there's a very high probability that he has something mis-configured in his system. Your guess that it's the positioning of the GPS antenna seems reasonable, especially when you look at the photos of the radar arch and GPS mushroom. This should be easy to determine by running the system and turning the radar on and off. Since it appears that he installed the system by himself and hasn't obtained professional help, RayMarine seems to have done everything that they should have, and probably more. -- Geoff www.GeoffSchultz.org |
#5
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posted to rec.boats.cruising
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On 2008-01-31 14:27:03 -0500, Geoff Schultz said:
Expecting the developers to add in code to check for rare events like this just doesn't happen. Sorry, but I'm a developer and I program the odd-event handlers first because I *need* that info when things go "bang". Okay, I'm an exception because my programs must work 100% of the time or say what was wrong so the problem can be fixed fast. For some reason, when you manage 10-20 billion dollars' investments, they want things to balance to the penny every day. Still, I can attest it really takes no real effort to output error messages whenever some action gives an unexpected result. -- Jere Lull Tanzer 28 #4 out of Tolchester, MD Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/ Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/ |
#6
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posted to rec.boats.cruising
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Jere Lull wrote in
news:2008013121245350073-jerelull@maccom: On 2008-01-31 14:27:03 -0500, Geoff Schultz said: Expecting the developers to add in code to check for rare events like this just doesn't happen. Sorry, but I'm a developer and I program the odd-event handlers first because I *need* that info when things go "bang". Okay, I'm an exception because my programs must work 100% of the time or say what was wrong so the problem can be fixed fast. For some reason, when you manage 10-20 billion dollars' investments, they want things to balance to the penny every day. Still, I can attest it really takes no real effort to output error messages whenever some action gives an unexpected result. An "odd event" is different from a program going "bang." I would be willing to bet that you don't do range checking on all of the data that you input from disk or a database. Most of the time you assume that it's right. If a program goes "bang", it's easy to have specific or generic error handlers to output that an error occurred and what was going on at the time. The software for the C series has exactly such an error log. We never got to that stage of debugging. To me it's obvious that cognisense didn't want to fix the problem. He only wanted his money back. I asked many questions and none of them were answered, or if they were, only in the most generic sense. I, and others, offered many suggestions and from what I could tell, none of them were acted upon. I really dislike that fact that he appeared in this group under the guise of disclosing how awful the C120 is, when all that he wanted to do was to use it as a bargaining chip with RayMarine. It amazes me that as a "programmer and system architect" that he had never explored the System Integration menus which can provide a tremendous amount of information on what's going on within the system. I used to run an Internet company and many times we had customers publicly blast us over issues which they thought were ours. Sometimes they were our problems, but MANY times they were on the behalf of the customer. I always appreciated it when knowledgeable customers stepped up on our behalf. I guess that I was trying to do that and at the same time, fix his problems. -- Geoff www.GeoffSchultz.org |
#7
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posted to rec.boats.cruising
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On 2008-02-01 10:08:04 -0500, Geoff Schultz said:
An "odd event" is different from a program going "bang." I would be willing to bet that you don't do range checking on all of the data that you input from disk or a database. You'd lose that bet, but I admit that I'm unusual. I'm proud of the number of systems that I've given away to lesser (or no) programmers as no further maintenance was required. A couple of times, that meant that I had to find a new job, but most of the time I've been grabbed up by a different division. Two companies have paid me in 20 years (excepting a serious misfit I stumbled upon between the two). Anyone who can claim similar will almost assuredly have similar requirements (and accomplishments) to mine. -- Jere Lull Tanzer 28 #4 out of Tolchester, MD Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/ Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/ |
#8
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posted to rec.boats.cruising
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Jere Lull wrote:
On 2008-01-31 14:27:03 -0500, Geoff Schultz said: Expecting the developers to add in code to check for rare events like this just doesn't happen. Sorry, but I'm a developer and I ... when you manage 10-20 billion dollars' investments.. Yeah, I kind of bristled at that one also. I'm a developer too, and produce software for medical labs. Because of the potential liability involved (not to mention peoples health), our customers are pretty picky too. I actually spend much of my time developing interfaces between the analyzers in the lab and our system. Diagnostics are designed in from the ground up. There's nothing worse than when something doesn't work and it doesn't give you any clue as to why it's not working. -- Dan Best s/v Tricia Jean, Tayana 37 #192 |
#9
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posted to rec.boats.cruising
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In article ,
Dan BEst wrote: Expecting the developers to add in code to check for rare events like this just doesn't happen. Sorry, but I'm a developer and I ... when you manage 10-20 billion dollars' investments.. Yeah, I kind of bristled at that one also. I'm a developer too, and produce software for medical labs. Because of the potential liability involved (not to mention peoples health), our customers are pretty picky too. I actually spend much of my time developing interfaces between the analyzers in the lab and our system. Diagnostics are designed in from the ground up. There's nothing worse than when something doesn't work and it doesn't give you any clue as to why it's not working. -- Dan Best s/v Tricia Jean, Tayana 37 #192 Ahhh, but there is a GIANT difference between what RayMarine firmware is designed to do, and what your Multi-Million Dollar Investment Software, or your Healthcare software is designed to do. RayMarine is a "Consumer" level Firmware system, and needs to fit in caparativly Small Codespace, when balanced against the Stuff you guys are writing. Why would ANYONE, with any sense of software smarts, expect to get anything more from RayMarine, than they get from their Whirlpool Washing Machine, or their Kitchen Stove? These are Consumer Products, of limited Production runs, and your expectations are for Mission Critical Software.... Does anyone else figure these guys are just whiner's...... -- Bruce in alaska add path after fast to reply |
#10
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posted to rec.boats.cruising
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On Jan 31, 7:29 am, larry wrote:
I am very happy to report that further speculation in this matter will not be necessary: my dealer has just informed me that the decision has been made to graciously accept the return of these products. To all of those who took the time to contemplate possible solutions to the problems exhibited, and especially to the majority of you who did so without feeling any need to resort to personal insults while doing so, I offer my sincerest thanks. There will always be a cold beer awaiting you aboard my vessel. |
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