Real-Time vessel & object monitoring by VHF

The system allows persistent locating and monitoring of vessels and moving objects in a special area via VHF technologies. The vmsTRACK-PRO-CS is working with CSTDMA Class B transmission functionality.

CSTDMA is the short cut for “Carrier Sense Time Division Multiple Access” which is used for AIS Class B units. The vmsTRACK-PRO-CS operates on the principle “listen before talk”. If a transmission is due, the transceiver watches the dedicated slot and if there is actually no transmission in the slot from a Class A transceiver, then the CSTDMA unit starts transmission his own in this slot.



Palm-sized for every request

The vmsTRACK-PRO-CS is a small portable “grab’n’go” position transmitter, which broadcasts in a pre-set time interval via VHF radio frequencies. The unit is ideal for coastal fishing fleet, movement monitoring of harbour vessels, small target tracking and pleasure boaters tracking. It is suitable for fishermen, vessels, leisure boats, ski jets, harbour crafts, pilot vessels, etc. The system is expandable to a full target management system. With the usage of the vmsTRACK-PRO-CS real-time-tracking system, a radar-less traffic monitoring system for economic application is possible.

By means of the transmission contained information about current GPS position as well as curse and speed over ground of the object, persistent real-time-tracking and monitoring of special interest objects is possible for a base station. Such a base station only needs a special tuned receiver unit to get these position reports, if customized frequencies are used. Creation of a so called “closed user group” is possible with such a system, in which only the base station has the permission to look into by means of these customized frequencies. The vmsTRACK-PRO-CS is also able to run on regular AIS frequencies which makes a special tuned receiver needless.

Geo fencing possible

Special areas can be programmed into the unit where not to enter or not to leave. So called “Geo-Fence-Areas”. The vmsTRACK-PRO-CS unit gives visual alerting by flashing LED if this geo-fence-function is triggered and a special information message is send to base station immediately. Only base station will be able to interpreter.

Intelligent tamper-proof solution

If the unit will be stolen or tampered, an intelligent high tech solution will trigger a flashing LED to inform the vessels Captain as well as a special information message is also send to base station immediately.

Such a special information message is send within the normal position report, but only base station knows how to read it.

“Who and Where” for coastal security and fleet management

The real-time-knowledge of “who and where?” is very important in administration of coastal fishing fleets as well as in coastal boarder security issues. By transmission of special names and unit IDs “friend or foe” identifying is possible.

Additional emergency distress button

The small vmsTRACK has got an additional emergency distress button. By triggering the alert function, additional to the regular position report on special frequency, according to customer’s specification and with approval of the national authority, an official emergency message will be send out on both regular AIS frequencies to reach every AIS receiver within transmission range of the vmsTRACK.

Individualization of vmsTRACK units

The vmsTRACK units can be individualized by means of programming ship name, type of vessel as well as area of activity into the unit for transmission.

The pre-set time interval is free to define. Each second up to 1 time per hour, everything is possible. As bigger the time gap is, as longer the battery capacity will be. E. g. once per minute will last for a couple of days.

The power supply for the vmsTRACK unit on a small fishing vessel can be realized by solar panel. This will continuously charge the transmitter.

Basic needs fulfilled

To be waterproof to a depth of 10 meters is nearly needless to say for a palm-sized portable product in the maritime branch.

Different power supply solutions possible

There are 3 ways of using the vmsTRACK-PRO-CS with reference to power supply.

  1. Charging station
    Staying independent by own rechargeable batteries going to be charged by own charging station (easyCHARGER A121)
  2. Board net
    Fixed solution by means of connection to 9-32VDC board net power supply. This will give permanent intelligent recharging (special modification of charging station on demand).
  3. Solar panel
    Persistent external power supply with permanent intelligent recharging. This will be a fully self contained solution for permanent operation.

What is needed to run the vmsTRACK?

Each object going to be monitored needs a vmsTRACK. The charging station provides intelligent and ideal charging which ensures the long lifespan of the batteries.

The vmsTRACK is factory pre-set to a custom frequency for “closed user groups”.