Surveying system using radio ranging and barometric height

A surveying system using radio waves and barometric sensors for surveying by means of the trilateration method the system comprising:

• at least two portable stationary units (9) and one portable mobile unit (1) characterized both by employing radio ranging electromagnetic waves as vectors and by that the above-mentioned units are built as rods made of a tube (12) of watertight and insulating material with a lower pointed end (13) and a spheric level (2) on the upper end;
• accumulators (6), transceiver instruments (4), an aerial (15) and a barometric sensor (3) are housed inside the tube (12);
• the tube (12) of the portable mobile units (1) contains also electronic components (5) for processing of surveyed data, while a portable control keyboard (8) is connected to the tube (12) of the portable mobile units through a cable plugged in a multiple cable socket (7);
• each of the portable stationary units (9) houses inside the tube (12) the electronic components (10) which:
• include at least one microprocessor (20) or (23) with its interfaces;
• such microprocessor is connected to a signal amplifier (21) and, through the signal amplifier, to the barometric sensor (3), it is moreover connected to a memory (22) or (24);
• the electronic components (10) are also connected to the transceiver instruments (4) which comprise a modulated electromagnetic waves transmitter (17) and of a receiver (18) both connected to the aerial (15) through an electronic aerial change-over switch (16);
• the portable mobile unit (1) houses inside the tube (12) the electronic components (5), which:
• include at least one microprocessor (25) with its interfaces which is connected to a signal amplifier (21) and, through it, to the barometric sensor (3);
• such microprocessor is moreover connected to both a memory (28) and to an electronic circuit (19) for the telemetering of distances;
• the above-mentioned electronic components (5) are connected also to the transceiver instruments (4) both the latter elements are connected to the aerial (15) through an electronic aerial change-over switch (16);
• the electronic components (5) are also connected both to an electronic portable control unit (8) which includes a keyboard (14) and an alphanumeric display (26) and to a possible peripheral (27) for the registration of data.