© BECOM Systems 2020
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Software User Manual - Argos3D - P33x
Last change: 29 June 2020/Version 10
Frequency Unambiguity Range
30 MHz
~5m
40.026 MHz
~3,75m
50.032 MHz ~3m
60 MHz
~2,5m
70 MHz
~2,1m
80.051 MHz ~1,8m
Table 4-2: Pre-defined modulation frequencies
The register content is the frequency in 10-kHz-steps (frequency in Hz/10000). On a register read, the currently
selected modulation frequency (again, in 10-kHz-steps), is returned.
Note
The BltTofSuite demo application displays and takes modulation frequencies in MHz and
calculates the register content transparently!
4.9
Frame Rate and Integration Time
The frame rate and the integration time of the ToF sensor can be set by using the registers
Framerate
and
IntegrationTime
/
IntTimeSeq1
/
IntTimeSeq2
/
IntTimeSeq3
(for sequence 0/1/2/3).
The ToF sensor’s
integration time is limited to 24ms.
The color sensor is operating at ca. 15 or ca. 30 frames per second as defined in register
ColorStreamParams
. The
color sensor always works with auto exposure control (AEC) and auto gain control (AGC) on.
The combination of frame rate and integration time influences the input current as well as the dissipated heat and
will be characterized by the
“Fra
me
rate Integration Time Product”
(FITP) which has been defined as follows:
𝐹𝐼𝑇𝑃 = 𝑡
𝐼𝑁𝑇
[𝑚𝑠] ∙ 𝑓𝑝𝑠 [
1
𝑠
] ∙ 4
Caution
Be careful in setting different integration times and frame rate combinations. Not all
combinations are possible! Without appropriate cooling the device may be damaged! Refer to the
Hardware User Manual for more information.
The FITP is also used for the camera’s power control, if it i
s powered by PoE (see chapter 0). If the camera register
IntegrationTime
(or its pendants for sequences 1, 2, 3) or
Framerate
is modified, the entered value is used to
calculate the FITP. Should the FITP violate the maximum allowed power, then the value is automatically corrected
before it is applied. The corrected value can be read back via the same register. Also, if any correction of
integration time or frame rate took place because of PoE constraints, Bit[10] of the
Status
register will be set.
