System for asset tracking

1. An asset tracking system comprising:

(a) a tracking device for mounting on an asset, the tracking device comprising:

(i) a GPS receiving device for receiving GPS signals from GPS satellite transmitters;

(ii) a tracking device communication device; and

(iii) a microcontroller connected with both the GPS receiving device and the tracking device communication device, for controlling the tracking device;

(b) a tracking device management system comprising:

(i) a tracking system server comprising a database for storing data pertaining to the asset tracking system;

(ii) a management system communication device; and

(iii) a management system communication interface for interfacing with the management system communication device and the tracking system sever;

(c) a tracking device communication link between the tracking device communication device and the management system communication device to enable the tracking device management system to communicate with the tracking device; and

(d) a customer communication link between a customer of the asset tracking system and the management system communication interface to enable the customer to communicate with the tracking device management system;

wherein the tracking device is configured to transmit a message to the tracking device management system through the tracking device communication link, wherein the tracking device management system is configured to transmit a message receipt confirmation through the tracking device communication link to the tracking device in response to the message, and wherein the tracking device is further configured to re-transmit the message to the tracking device management system through the tracking device communication link if the tracking device does not receive the message receipt confirmation within a selected message confirmation time.

2. An asset tracking system comprising:

(a) a tracking device for mounting on an asset, the tracking device comprising:

(i) a GPS receiving device for receiving GPS signals from GPS satellite transmitters;

(ii) a tracking device communication device; and

(iii) a microcontroller connected with both the GPS receiving device and the tracking device communication device, for controlling the tracking device;

(b) a tracking device management system comprising:

(i) a tracking system server comprising a database for storing data pertaining to the asset tracking system;

(ii) a management system communication device; and

(iii) a management system communication interface for interfacing with the management system communication device and the tracking system server;

(c) a tracking device communication link between the tracking device communication device and the management system communication device to enable the tracking device management system to communicate with the tracking device; and

(d) a customer communication link between a customer of the asset tracking system and the management system communication interface to enable the customer to communicate with the tracking device management system;

wherein the tracking device is configured to transmit a message to the tracking device management system through the tracking device communication link, wherein the message is an alarm message, wherein the alarm message is transmitted upon the occurrence of an alarm event, wherein the tracking device management system is configured to transmit an alarm message receipt confirmation through the tracking device communication link to the tracking device in response to the alarm message, and wherein the tracking device is further configured to re-transmit the alarm message to the tracking device management system through the tracking device communication link if the tracking device does not receive the alarm message receipt confirmation within a selected alarm message confirmation time.

3. An asset tracking system comprising:

(a) a tracking device for mounting on an asset, the tracking device comprising:

(i) a GPS receiving device for receiving GPS signals from GPS satellite transmitters;

(ii) a tracking device communication device; and

(iii) a microcontroller connected with both the GPS receiving device and the tracking device communication device, for controlling the tracking device;

(b) a tracking device management system comprising:

(i) a tracking system server comprising a database for storing data pertaining to the asset tracking system;

(ii) a management system communication device; and

(iii) a management system communication interface for interfacing with the management system communication device and the tracking system server;

(c) a tracking device communication link between the tracking device communication device and the management system communication device to enable the tracking device management system to communicate with the tracking device; and

(d) a customer communication link between a customer of the asset tracking system and the management system communication interface to enable the customer to communicate with the tracking device management system;

wherein the tracking device is configured to transmit a message to the tracking device management system through the tracking device communication link, wherein the tracking device management system is configured to transmit a message receipt confirmation to the tracking device through the tracking device communication link in response to the message, and wherein the tracking device is configured to implement a message transmitting procedure comprising the following steps:

(a) transmitting the message to the tracking device management system through the tracking device communication link;

(b) waiting for a selected message confirmation time for receipt of the message receipt confirmation from the tracking device management system;

(c) re-transmitting the message to the tracking device management system through the tracking device communication link if the message receipt confirmation is not received from the tracking device management system within the message confirmation time; and

(d) repeating steps (b) and (c) until either the message receipt confirmation has been received from the tracking device management system or the message has been sent and re-sent a selected number of times.

4. The asset tracking system as claimed in claim 3 wherein the tracking device is further configured to wait for a selected waiting period and to implement the message transmitting procedure again if the message receipt confirmation has not been received from the tracking device management system.

5. The asset tracking system as claimed in claim 3 wherein the tracking device is further configured to repeat a cycle of waiting for a selected waiting period and implementing the message transmitting procedure until the message receipt confirmation is received from the tracking device management system.

6. An asset tracking system comprising:

(a) a tracking device for mounting on an asset, the tracking device comprising:

(i) a GPS receiving device for receiving GPS signals from GPS satellite transmitters;

(ii) a tracking device communication device; and

(iii) a microcontroller connected with both the GPS receiving device and the tracking device communication device, for controlling the tracking device;

(b) a tracking device management system comprising:

(i) a tracking system server comprising a database for storing data pertaining to the asset tracking system;

(ii) a management system communication device; and

(iii) a management system communication interface for interfacing with the management system communication device and the tracking system server;

(c) a tracking device communication link between the tracking device communication device and the management system communication device to enable the tracking device management system to communicate with the tracking device; and

(d) a customer communication link between a customer of the asset tracking system and the management system communication interface to enable the customer to communicate with the tracking device management system;

wherein the tracking device is configured to transmit an alarm message to the tracking device management system through the tracking device communication link upon the occurrence of an alarm event, wherein the tracking device management system is configured to transmit an alarm message receipt confirmation to the tracking device through the tracking device communication link in response to the alarm message, and wherein the tracking device is configured to implement an alarm message transmitting procedure comprising the following steps:

(a) transmitting the alarm message to the tracking device management system through the tracking device communication link;

(b) waiting for a selected alarm message confirmation time for receipt of the alarm message receipt confirmation from the tracking device management system;

(c) re-transmitting the alarm message to the tracking device management system through the tracking device communication link if the alarm message receipt confirmation is not received from the tracking device management system within the alarm message confirmation time; and

(d) repeating steps (b) and (c) until either the alarm message receipt confirmation has been received from the tracking device management system or the alarm message has been sent and re-sent a selected number of times.

7. The asset tracking system as claimed in claim 6 wherein the tracking device is further configured to wait for a selected waiting period and to implement the alarm message transmitting procedure again if the alarm message receipt confirmation has not been received from the tracking device management system.

8. The asset tracking system as claimed in claim 6 wherein the tracking device is further configured to repeat a cycle of waiting for a selected waiting period and implementing the alarm message transmitting procedure until the alarm message receipt confirmation is received from the tracking device management system.