Sailsafe

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11 years ago

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[App] Sailsafe

Sailsafe is an application designed to increase safety in the anchoring of small and medium-sized ships.

It lets you stablish a safety zone around your anchor and activate an alarm that will alert you in case your ship leaves that zone at any given time (very common situation when anchor drifting occurs or the chain breaks). You will be able to see where the boat is located on the map at any moment, which is very useful if it is dark or visibility is reduced.

The safety zone can be set just indicating a radius.

In PRO version, you can also specify an aditional ??exclusion sector in that area to detect, for example, changes in wind direction that could put our boat at risk if, for example, the coast is positioned itself to leeward.

Sailsafe has been designed to maximize the safety after anchoring. Therefore, once the alarm is activated, not only the position of the ship is checked, but also the level of the battery in the mobile device or the state of the GPS signal. If any of these parameters fails, then the app will produce an audible alarm to inform about the specific problem. Thus, after setting the alarm you can relax and trust Sailsafe. It will be watching for you.

Features:
Run in the background, which is safer and save battery power.
Main screen shows useful information:
1. Current position (latitude, longitude and accuracy of the measure).
2. Current security radius.
3. Current drift.
Graphically and easily set a security zone with optional exclusion sector. (The exclusion sector is only allowed in pro version).
Wind forecast included (48h). You will be warned if the boat is going to be out of the security zone due to a wind change.
The ship and the security zone are always shown over a map with optional satellite view.
Access the main menu from the notification bar once the alarm is set (easy access).
Once the alarm has been set, you can adjust the anchor position in case it is not correct. Just indicate the actual bearing (read it from the compass) and estimated distance between the ship and the anchor (surface distance).
Option to ignore the current volume of the device and set it to the max when the alarm is triggered.
Option to set a minimum battery level. When reached, the alarm is triggered.
Option to call a phone number when the alarm is triggered.
Remote commands (only pro):
1. An incoming call from a defined phone will reset the alarm.
2. Send a SMS with the word STATUS to the on board device and it will respond with another SMS containing useful information about the location of the ship.
After one minute without GPS signal, the alarm is triggered. It is assumed that the device has no GPS signal.
Option to set the measurement unit (feet or meters).
Three modes of operation:
1. Normal. GPS readings every 10 seconds. Simple algorithm to discard odd positions. (Save battery when the device is not charging).
2. Fine. GPS readings every 2 seconds. Complex averaging algorithm based on accuracy and time of the last 10 GPS readings to discard odd positions making the whole system smooth and robust. More power consumption (Only pro version).
3. Continuous. GPS readings every 1 second. Same algorithm as in fine mode. Optimus for adverse weather conditions. More power consumption (Only pro version).
When re-enabling alarm, if ship moved less than 150 meters, you can opt between keeping last anchor position (useful after a false alarm) or using the actual GPS reading.
If alarm is not set, you could use the map window as a navigation assistant (e.g. when it is foggy). Keep in mind that the device does not act as a radar and can not detect other boats. Use it at your own risk.

Sailsafe user reviews :

Brilliant, if your boat is anchored or on mooring, you need this. Easy to use. Bought pro just to support the developer. Suggestion, option to make text bigger so I don’t need to put glasses on at night.

HCSoft S.L. September 16, 2013
Thank you Kingsley. I will take into account your suggestion.

Confusing usage It seems that the anchor was reset each time I stopped the alarm. The shown boat position is incorrect before the alarm is activated. Also unable to configure the battery alarm level.

HCSoft S.L. March 25, 2013
Hello. Since this comment many improvements have taken place. Now you can reset the alarm using the previous position of the anchor (feature added after your comment). The minimun battery level to triggered the alarm is easy to configure and nobody reported any error but you. Could you explain me better why you are unable to configure it, please?

Yes, it works for me It worked for me better on the water than my wife’s IPhone anchor watch app. One false positive which corrected itself upon next GPS reading. It is nice that it errors on the side of safety. I feel like my GPS hardware causes false positives not the app.

Best anchor alarm app We live aboard and anchor out every night. I’ve tried every anchor alarm app out there and this is the best. –Great piercing alarm sound is sure to wake you up. — Easy to set guard zone . — If boat moves outside guard zone you can easily reset alarm if the alert was false. –You can also choose to reset alarm using original anchor position or set a new one. (One of the best features) –Great app, helps me sleep easy!