What Is Radio Telemetry?

Radio telemetry is to use a series of electronic equipment to measure the distant objects to obtain the required data. The data is converted into electrical signals, and the program codes are sent to achieve remote telemetry. This type of method is called radio telemetry. ^[1]

According to records, in order to test land mines from a distance in 1812, telemetry technology came into being. With the development of industry, telemetry technology has gradually developed. The invention of the vacuum triode led to the emergence of FM telemetry equipment. The system for telemetry using radio channels on weather balloons was successfully tested in 1930. This is the world's first relatively complete telemetry equipment.

After World War II, radio telemetry has made great progress. Especially for the test of military aircraft, the large-capacity multi-channel radio telemetry system began to be developed, and it was actually adopted after the 1940s.

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According to different uses, radio telemetry is divided into:

Close-range telemetry of rotating parts or reciprocating parts instead of the collecting ring. Due to the short measurement distance (generally no more than several meters), the power and volume of the transmitter can be made small, so it can be easily fixed to the component under test;

Long-distance telemetry of moving objects. In order to measure mobile bodies such as agricultural machinery and tractors, telemetry distances are required from several meters to several kilometers. This requires that the transmitter has sufficient power, and some relay measures need to be taken. In order to meet the simultaneous measurement of multiple parameters, the instrument is required to have multiple channels. ^[3]

The radio telemetry device includes measuring equipment, radio transmitting equipment, radio receiving equipment, data processing equipment, recording equipment, and display equipment. In the military, aerospace, meteorology, biology, medicine, and other scientific and technological fields, radio telemetry devices have been widely used to measure and transmit information on the status and parameters of various targets and processes over long distances. Modern radio telemetry devices can transmit measurement data over distances of hundreds of millions of kilometers, with millions of binary symbols per second (

Remote industrial remote control, telemetry mobile communication base station, repeater remote maintenance, industrial equipment fault monitoring, GSM environmental protection information acquisition system, urban pipe network pressure, temperature monitoring warehouse, machine room and other unattended fires, burglar alarm, power communication outdoor equipment monitoring, Water pump control.