I'm working on a project using the HC-SR04 ultrasonic sensor, and I need to reduce its detection rate. Currently, it detects objects with a probability of 0.9999, but I want to lower it to 0.5.
Is there a way to achieve this through software modifications (e.g., increasing delay, adjusting trigger frequency, or probabilistically skipping detections) or hardware adjustments (e.g., narrowing the field of view or reducing sensitivity)?
Any suggestions, code examples, or proven methods would be greatly appreciated!
1.That sounds like it could be an interesting project that could be a lot of fun! However, please keep in mind that we are not a free design or code-writing service. We’re more than happy to help with your design or code, but we need you to make an initial attempt. Please design and write your code, then post it along with an explanation of what’s not working properly.
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To clarify, by detection rate, I mean the probability of detection (Pd)—the likelihood that the HC-SR04 sensor successfully detects an object when it should. Currently, in my setup, the detection rate is nearly 0.9999 (almost always detecting), but for my research, I need to experiment with lower detection probabilities, such as Pd = 0.5.
I am working on my MS thesis, where I am implementing a robotic search strategy. In simulations, I can control Pd mathematically, but at the experimental level, I need a way to manipulate the HC-SR04 sensor’s detection probability to match my simulations.
I am looking for software or hardware methods to reduce the probability of detection in a controlled manner. This could involve adjusting the trigger frequency, adding randomness to detection, modifying sensor placement, or other techniques.
Any insights on how to achieve this would be greatly appreciated!
