Communication system for tracking assets
First Claim
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1. A communication system comprising:
- a mobile unit generating mobile unit position signals and mobile unit message signals;
a base station wirelessly two-way coupled to said mobile unit having a GPS receiver generating base station position signals;
a master wireless modem receiving said mobile unit position signals and the mobile unit message signals; and
a base display changing in response to said mobile unit position signals and said base station position signal.
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Abstract
A communication system comprises a mobile unit that generates mobile unit position signals and message signals. A base station is wireless two-way coupled to the mobile unit. The base station has a GPS receiver that generates base station position signals, a master wireless modem that receives the mobile unit position signals, and the mobile unit message signals. The base station includes a base display changing in response to the mobile unit position signals and the base station position signal.
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Citations
26 Claims
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1. A communication system comprising:
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a mobile unit generating mobile unit position signals and mobile unit message signals;
a base station wirelessly two-way coupled to said mobile unit having a GPS receiver generating base station position signals;
a master wireless modem receiving said mobile unit position signals and the mobile unit message signals; and
a base display changing in response to said mobile unit position signals and said base station position signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile unit comprising:
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a GPS receiver generating a mobile unit position signal;
a wireless modem receiving base station message signals and transmitting the mobile unit position signal therethrough;
a text display; and
a controller coupled to said GPS receiver and the wireless modem, said controller generating a text display in response to said position signal and said base station message signals. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A base station comprising:
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a map display;
a master wireless modem receiving mobile unit position communication signals and transmitting base station message signals therethrough;
a GPS receiver generating a base station position signal; and
a microcontroller coupled to said display, said master wireless modem and said GPS receiver, said microcontroller operating the map display in response to the mobile unit position signals and the base station position signal. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification