From 7c414dd7d0532939edf2e9a021042bccdb82e4a4 Mon Sep 17 00:00:00 2001 From: Alexandra Moorman Date: Fri, 19 Sep 2025 02:06:55 +0000 Subject: [PATCH] Add 'But how Does OnStar Work, Exactly?' --- But-how-Does-OnStar-Work%2C-Exactly%3F.md | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 But-how-Does-OnStar-Work%2C-Exactly%3F.md diff --git a/But-how-Does-OnStar-Work%2C-Exactly%3F.md b/But-how-Does-OnStar-Work%2C-Exactly%3F.md new file mode 100644 index 0000000..8c7da35 --- /dev/null +++ b/But-how-Does-OnStar-Work%2C-Exactly%3F.md @@ -0,0 +1,9 @@ +
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While LED 16 is providing purple light, the amplified sign obtained from preamplifier 34 is routed by means of swap 46 to pink sign processing channel 48. Conversely, when infrared light is being emitted by diode 18, the amplified sign is routed to IR sign processing channel 50. During darkish intervals, whereas neither diode is operative, the amplified output signal isn't routed to both signal processing channel. Each of signal processing channels forty eight and 50 could embody generally standard components for changing the periodic signal samples equipped by switch 46 right into a considerably continuous, smoothed signal, eliminating spurious components ensuing from the switching course of itself and determining the AC and DC parts of the smoothed sign. 10 Hz, and is arranged to attenuate alerts above that frequency. 52 is linked to each sign processing channels forty eight and 50, the microprocessor being organized to obtain digital values from the primary and second analog to digital converter of every channel.
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64 having an inverting enter related to integrator input node 60, a non-inverting input node related to floor and an output related to the output node sixty six of the integrator. 26 actuates LED drives 22 and 24 and LED's 16 and 18 alternately, and periodically interrupts operation of the LED's and LED drives to supply darkish intervals during which neither LED is illuminated. During each such darkish interval, timing unit 26 causes switch fifty six to shut thereby connecting preamplifier means output node 40 via resistor fifty eight to integrator enter node 60. During a dark interval, only the ambient gentle impinges upon photodiode 20. As the current produced by photodiode 20 is directly associated to the amount of light impinging on the photodiode, the current flowing out of the photodiode output node 32 right now is directly associated to the amount of ambient light. 38 tends to cause operational amplifier 36 to swing the voltage at preamplifier output node 40 within the damaging route.
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