Silvus StreamCaster 4000 Series, Руководство пользователя

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StreamCaster 4000 series MIMO Radio User Manual
9/2/20
10017C000 Silvus Technologies Confidential
Page
134
9. Streaming Response
Some users may be interested in streaming specific information from the radio e.g. RSSI, noise floor,
temperature, etc. After enabling the response, they need using the above commands, the radio will
transmit the desired information in the form of UDP packets to a specific IP address and port. The format
of each report message will be in the type-length-value format as shown below:
TYPE LENGTH VALUE TYPE LENGTH VALUE …
•
TYPE and LENGTH will be 16-bit unsigned integers in network-endian format.
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TYPE indicates the kind of information being transmitted. Pre-defined types are listed later in this
document.
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LENGTH indicates the length of the VALUE field in bytes, including the terminating null byte.
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VALUE will be ASCII-encoded text terminated with a null byte ('\0').
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A single report will comprise of a set of type-length- value fields beginning with a “begin” report
type. It will have a type which is specific to the type of report being generated, length of 1 byte
and a value of an empty string (“”). Note the empty string is still null terminated.
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Each report will end with an end of report which has type 1 (type = end of report, length = 1, value
= "").
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T he empty string listed above has a NULL character and has length 1. Any length number in the
streaming report includes the NULL character
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A UDP packet may contain more than one report.
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The UDP packets have a maximum size of 1400 bytes.