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Questions tagged [tracking]

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4 votes
3 answers
314 views

GND plane between tracks or tracks closer enough to remove the GND tracks

I am working in a design with many signals, no high speed signals, just some switches signals and encoders tracks. However I had problems with the ground uniformity sometime ago, therefore I would ...
Andres Romo's user avatar
0 votes
1 answer
149 views

Infrared eye tracking - safe levels of infrared exposure on the eyes

I'm making an infrared eye tracker where an infrared light will be shone on one of the user's eyes, and a camera will capture the user's gaze, and I have a 940mm IR LED for this purpose. I have the ...
Joel Leung's user avatar
2 votes
2 answers
145 views

Battery life of Li-Po battery if it is under constant charging

This question is to clear my confusion because I cannot find a logical answer. Say a vehicle is installed with a vehicle tracker ...
Awais Saeed's user avatar
0 votes
0 answers
52 views

Altium PCB Layout Track Issue

My question is about the weird track figure in the Altium Layout. I attached a screenshot of this issue in the following. Can you help me, how to fix or remove this mark from Altium PCB page?
bcdyzi's user avatar
  • 87
2 votes
1 answer
396 views

"Error: Items not allowed (keepout area..)" KiCAD

I have got this erorr. What should i do?
Византија Исток's user avatar
0 votes
1 answer
328 views

KiCAD DRC erorrs

I have problem with this erorrs, but i don't know how to fix it. [![enter image description here][3]][3] But I have this erorrs, what should i do know?
Византија Исток's user avatar
0 votes
4 answers
182 views

Boost Converter with Vin tracking

I'm trying to design a boost converter circuit that would allow me to have the VOUT tracking to the VIN of the boost. Could I add some circuit between VIN and the FB pin so it could regulate the FB so ...
user1009706's user avatar
1 vote
2 answers
287 views

Designing dual tracking regulator low noise PSU

I want to design a power supply with the following constraints Inputs 19 V - 0 - 19 V secondary & 9.5 V secondary - A transformer I have ready for the project, primary 230V . Output +15 & -...
ahmod3's user avatar
  • 11
3 votes
0 answers
54 views

Constant(ish) distance between multiple objects [closed]

I’m working on a project where I need to be able to represent the positions of multiple, slow moving objects (between 5 and 30) on an X/Y plane (with a size of about 25m X 25m) in an outdoor ...
Mach1Dagger's user avatar
0 votes
3 answers
157 views

Active Radar Homing with single antenna

From what I remember there are a few A2A and S2A missiles which have their own onboard radar system but I don't think they have multiple radar antennas for phased Array use. I'm curious how radar ...
FourierFlux's user avatar
0 votes
1 answer
366 views

Why don't the GPS equations account for receiver clock drift?

My basic understanding of GPS is that a network of at least four synchronized satellites send messages containing their locations and transmit times (\$A_i, B_i, C_i\$ and \$t_i\$) to an ...
david11's user avatar
-1 votes
1 answer
122 views

Measuring distance with ~300 m range and at least ~2 m accuracy as cheaply as possible [closed]

[Very new to Electrical Engineering.] So what I am trying to come up with is the following: I want to have a device (receiver) that receives signals and put it in one place, not moving. Other devices (...
ryabchenko-a's user avatar
0 votes
0 answers
112 views

Implemention of indoor posistion using Bluetooth 5.1

I see how Bluetooth 5.1 is going to explode once released commercially. However when I watch the videos on Youtube and how these companies are tracking these BLE 5.1 devices and how accurately it is, ...
JoeyB's user avatar
  • 2,389
1 vote
0 answers
83 views

Sensor to detect movement of object on a horizontal wire

I am looking on how to build a solution to track movement of an item clipped to a horizontal wire. It has been suggested I could do with with an accelerometer and Arduino. I want to detect any ...
lintunen's user avatar
0 votes
0 answers
82 views

What is the black two-leg sensor?

This is part of the Auto Sun Tracking Pump. It is attached to the agriculture solar system but damaged and I want to replace it. I don't know the black two-leg sensor.
Janaab's user avatar
  • 9
3 votes
3 answers
285 views

Best way to track light source?

I want to build a 1-D (azimuth), bidirectional optical tracker. The idea is to have two identical transceiver, mounted on DC servo-motor. The user can move the two servos on rails (reasonably fast), ...
Gab's user avatar
  • 79
0 votes
1 answer
89 views

Trace both control and power cables in a factory

I am a fresh graduate engineer and tasked with tracing power lines and control cables of equipment in a site to draw its one-line diagram from scratch. I thought of using a circuit/wire tracer device,...
user avatar
0 votes
3 answers
695 views

Ultra-narrow beam spread LASER diode

I want to build an optical position tracking system based on PSDs (Position-sensitive detectors). I searched online and found this PSD which has a sensitive area of 12 mm*12 mm. My goal is to allow a ...
Gab's user avatar
  • 79
1 vote
1 answer
433 views

PSU Series and Parallel Tracking Mode, Current Limit Behavior

I'm designing a training course for use of the electronics lab equipment at the local makerspace. We have a HY3005F-3 dual-channel DC power supply, and I scanned and posted the manual here. I'm ...
vicatcu's user avatar
  • 22.8k
1 vote
0 answers
106 views

Choosing a stepper for antenna tracking system

I am building a prototype for an antenna tracking system. The following animation will make it slightly easier to understand what I have in mind: https://youtu.be/DZ0LRf6_Zew The two antennas are: ...
Alessio Sangalli's user avatar
0 votes
2 answers
263 views

PCB trace width

I am trying to design a PCB circuit in altium designer. My circuit consists of one ATmega8a, one NRF24l01 and three magnetic relays (mini relay 12V MPR-S-112-A.) I want to set the trace width to 0....
ali's user avatar
  • 37
1 vote
0 answers
797 views

3-phase BLDC motor resolver problem

I am trying to drive a 3-phase BLDC motor with FOC and have some questions about obtaining resolver offset angle. In the driver I used ABC notation for phases and FOC accepts A phase as 0 angle ...
felvan's user avatar
  • 81
0 votes
5 answers
994 views

Restrict IR sensor field of view

I'm trying to develop a device that can detect or "watch" an infrared beacon that is freely moving side-to-side anywhere within a 180° field of view (-90° to +90°, with center/forward at 0°); i.e. the ...
ardnew's user avatar
  • 115
1 vote
3 answers
108 views

Which type of sensor for measuring height of horse step?

Is that possible? I'd like to track the amplitude of a horse leg/foot height for a show. The many many difficulties: constantly moving! So ultrasound way too slow the floor is irregular, made of ...
tep nico's user avatar
2 votes
1 answer
982 views

Combining solar panel strings with different azimuth

When combining strings with a different azimuth in an off grid system, lets say NNE facing with North Facing and NNW facing (Southern Hemisphere), you catch the morning and evening sun better, this is ...
user207364's user avatar
0 votes
2 answers
422 views

Dual power supply with BJT. How to do tracking without opamp?

I'm making a 0-±12V 20mA supply for breadboard. Circuit simulates fine with ltspice. How to implement tracking (or tracking ratio) WITHOUT opamp? I found a schematic here https://groenholdt.net/...
Indraneel's user avatar
  • 2,177
0 votes
1 answer
73 views

Looking for a very precise tx/rx circuit module to calculate distance [closed]

Thanks for helping. I'm looking for a system that will help me find exact distance between a transmitter and receiver at a frequency of milli seconds, in distance accuracy of milli meters. I want to ...
Dj Sbouy's user avatar
1 vote
2 answers
1k views

What is the best way to track IR led?

I want to build an interactive whiteboard which uses an infrared ped. I want to use a camera to track IR position on the projection screen. I plan to keep the camera a little further away from the ...
Saqib's user avatar
  • 11
0 votes
1 answer
99 views

Locating mobiles/UE by base stations in a cellular system [closed]

After understanding a bit about how actual cellular systems function, I realized that identifying the mobile/UE location is key in assigning the UE to correct base station and thus to guarantee a ...
wanderer's user avatar
  • 155
2 votes
2 answers
515 views

Alternative wireless technology for passive RFID tags

I am working on a project where I have 3 boxes and a RFID reader (MFRC522) attached at the bottom of each box. I keep my wallet/keys/etc. in these boxes and an LCD screen displays what is in each box ...
Prakhar Pradeep's user avatar
0 votes
0 answers
3k views

SIM800C - CME ERROR: 15 SIM wrong & CME ERROR: 10 SIM not inserted

I am making a GSM Tracker with SIM800C module. After deploying it into vehicles.. It works fine.. but after some days, it starts responding as CME ERROR: 15 SIM wrong for command AT+CPIN? & CME ...
bandejiya's user avatar
  • 133
0 votes
3 answers
4k views

Using a Spectrum Analyzer to measure VSWR

I need to measure the VSWR of a coaxial wire that has a length of 100 metres and a characteristic impedance of 50 ohms using a Spectrum Analyzer (I don't have a Network Analyzer). I found this website:...
Dylan's user avatar
  • 101
0 votes
1 answer
69 views

GPS start mode query

I am using SIM808 GPS/GSM module. I came across Cold start,Warm start and Hot start in GPS Modules while developing code for a GPRS Tracker for car. I know the difference between them.My question is ...
Iqbal Hossain's user avatar
0 votes
1 answer
85 views

3-axis solar tracker design

Is it possible to design a 3-axis solar tracker using three stepper motors just like dual-axis solar tracker in which we use two stepper motors one for elevation and one for azimuth?
user189816's user avatar
4 votes
1 answer
6k views

How can I build a touchpad/trackpad? [closed]

Every laptop has one - a touchpad/trackpad - for controlling the mouse. I'd like to build my own, external one. I've looked around and I cannot find a tutorial. I have come across 1 example where a ...
pookie's user avatar
  • 141
0 votes
1 answer
43 views

Communication Technique used in Commercial Vehicle Tracking Systems

I am working on a vehicle tracking system that conveys the coordinates information from the vehicle to a server via GPRS communication. For this purpose I am using a GSM module with an arduino uno. As ...
Adnan Arif Sait's user avatar
2 votes
0 answers
103 views

tracking error state space, linear control example

I am trying to understand a detail from an example, from the control textbook Slotine and Li (1991) "Applied Nonlinear Control", Prentice-Hall, Example 6.4, pag. 220. A linear system is given: $$\...
Lello's user avatar
  • 41
0 votes
1 answer
378 views

Desing Problem with Single Axis Solar Tracking System

I'm second year Electrical-Electronical Engineering student (It's Electrical Engineering basically but naming issues I guess) and my knowledge about circuits is limited to capacitors, inductors, ...
Samed Yalçın's user avatar
0 votes
1 answer
380 views

Object Recognition and tracking [closed]

I've been trying to make a butter passing bot, like the one from rick and morty. https://www.youtube.com/watch?v=X7HmltUWXgs I can do pretty much everything on there, but I need someone to help with ...
J. Doe's user avatar
  • 1
7 votes
4 answers
3k views

Are I/O buffers of ICs design to have 50ohm impedance?

Is it true that 50ohm characteristic impedance is a convention followed for signal carrying PCB tracks? Also, are the IC I/O buffers also designed to have a close to 50ohm impedance to match this?
quantum231's user avatar
-1 votes
2 answers
916 views

Why Altium designer autorouter making overlapped circuit track (error)?

I am using autoroute option in Altium designer (for only bottom layer), but in result I see some tracks overlapped to each other, as you can see in this photo: So I think when the Altium could not ...
Soheil Paper's user avatar
0 votes
1 answer
881 views

What kind of start is good for GPS modules used in Tracking

I came across Cold start,Warm start and Hot start in GPS Modules while developing code for a GPRS Tracker. I know the difference between them. But when I use hot start method,signal is acquired faster ...
Arun Joe Cheriyan's user avatar
7 votes
1 answer
227 views

What is a Jaffe-Rechtin PLL?

Eberhardt Rechtin and Richard Jaffe (both involved in NASAs DSN) published this paper (paywalled) on PLL-design and -performance back in 1955. It is referenced quite often, so I wanted to understand ...
Andreas's user avatar
  • 1,795
0 votes
3 answers
569 views

Really small tracker using wifi only?

does anyone know if it is possible to buy or build a really small tracker that uses wifi only. I'm hoping to begin a masters studying bats, possibly in China, I expect in China the areas that the ...
Shara's user avatar
  • 57
0 votes
1 answer
355 views

Distance tracking underwater

For a design project at school I need a way to track a short distance underwater (swimming pool). I have looked into programming an accelerometer to measure the distance traveled, but that is not ...
Eleonora Zanus's user avatar
0 votes
2 answers
852 views

Choosing the right motor to control mirrors

I am developing a computer vision project which involves developing a system using mirrors for pan and tilt movement of the camera field of view. Mirrors are independent of each other regarding ...
amanwalia's user avatar
0 votes
1 answer
384 views

A circuit to find 3D position of an object using changes in magnetic fields [closed]

There is a project at http://www.instructables.com/id/DIY-3D-Controller/ to make a DIY 3D controller with capacitors to infer the 3D position of the object being tracked (hand) without using any ...
qwerty10's user avatar
  • 133
0 votes
2 answers
522 views

Use of schottky diode and tracking peaks of input signal with capacitors

I am using this instructable to make a VU meter: http://www.instructables.com/id/Mini-Decibels-a-Simple-Volume-Meter-With-an-Electr/?ALLSTEPS I have two questions. What's the use of the Schottky ...
ScarletSpeedster's user avatar
-1 votes
1 answer
594 views

Why do some GPS devices require a GSM SIM-card?

Why do GPS products like [Image A] always require a GSM (or similar; i.e. 3G, 4G, etc.) SIM-card?; Whereas typical in-car GPS navigation devices, etc. like [Image B] don't? [Image A] [Image B]
voices's user avatar
  • 1,089
3 votes
2 answers
661 views

How to locate my cats in my house? [closed]

I have two cats and want to track in which of the 6 rooms of my flat (about 96 square meters) they currently are. Later I would like to trigger an alarm if they get into a "forbidden" room. The cats ...
muffel's user avatar
  • 171