Who has not ever tried to measure the speed of the stars. Ok, nobody, I know. But with Speed radar Will you be able to do it. Although in reality, it is really difficult to measure the speed of a star. However, it is the ideal application to measure the speed of moving elements. Feel like one of those police officers that appear in the movies.
Speed radar try to simulate those radar warning devices that traffic police officers in movies have. Although this one works a little differently. In reality, using the camera, we can focus on the moving object in question. Ideally, we should be far enough away to be able to capture the movement of a few meters.
And let's keep in mind that in order to calculate the speed, we will have to follow the element in motion by sliding on the screen, so if we are too close and the element is moving too fast it will be really difficult. To give us an idea, the application only needs two pieces of information. On the one hand, the distance we are from the moving element, and on the other, the object slippage on the screen. It is important not to move the smartphone, since it is necessary that it is fixed, and that what we move is the sight that we have on the screen.
Of course, the distance to the object will have to be calculated before trying to measure its speed, since otherwise the results will be wrong. The range of distances that we have goes from five meters to 150 meters, so we have to try that the distance to the object is neither the greatest possible, nor the smallest of all. Speed radar is a free application that is available on Google Play.
Google play - Speed radar.
How it works and how to measure accurately
The app calculates the speed by distance and time that the target travels in the horizontal plane while you follow it with your finger, like other apps to measure speed. To improve accuracy, measure the minimum distance to the target (tape measure, rangefinder or measuring apps) and place the mobile in a stable point; a tripod or resting the terminal on a surface helps prevent vibrations.
During measurement, follow the object on the screen with the surprise keeping the phone stationary and avoiding sudden movements. If you notice deviations, use options calibration of the sensor/scale in the app and repeat the measurement with more visible travel to reduce the error.
Factors like vision angleThe lighting and speed of the target influence the result: the longer the visible distance and the more perpendicular your position is to the movement, the better. Avoid standing too close if the object is moving very quickly.
GPS Alternatives: Speedometer, Odometer, and Useful Extras
If what you want is to know your speed by car, bike or on foot, there are speedometers for GPS, such as the TomTom Speed Cameras app, which show current, average and maximum speed, as well as distance, time, altitude and route on a map in real time. Many allow travel recording and save routes, with export in formats such as GPX for later analysis.
Among its advanced features you will find HUD mode (projection on the windshield), window mode or Picture in Picture to see the speed while using other apps, speed limit alerts configurable, support for GNSS for more precise positioning (radar apps compatible with Android Auto), and customizable units (km/h, mph or knots) for navigation.
Some include G-force meter for acceleration/braking, moving vs. stopped time analysis and mileage meter with statistics for each trip. Remember that GPS accuracy depends on the signal and the environment; it improves significantly in open skies.
Google Maps includes an informative speedometer and, where available, limit alerts that change the color of the indicator if you exceed the road speed. This is a guide only and may differ from the vehicle's dashboard; activate it from the navigation settingsAlways prioritize safety: don't handle your phone while driving.
Privacy, legality and responsible use
There are proposals with Artificial Intelligence that estimate vehicle speeds from video. Beyond technical interest, using them to report violations can be controversial and their validity will depend on local regulations. Use these tools with responsibility and never as a substitute for approved devices.
Measuring velocity in strength training (VBT)
If your goal is to control the bar speed In the gym, there are apps speed-based training able to estimate 1RM of the day and variables such as average speed, power and fatigue between sets. They can work with the mobile phone recording the movement or synchronized with encoders to obtain automatic and more accurate data.
This approach allows you to adjust the load in each session depending on how you move that day, stop series when you reach a certain loss of speed and keep your motivation high by trying to beat your best repetition.
With Speed radar You'll be able to experience quick visual measurements, and if you need continuous route monitoring or sports metrics, GPS speedometers and VBT cover different scenarios. Choosing the right tool for each case will give you useful data without sacrificing safety.
