Hallo everybody
My name is Rafi , and I want to build an inspection crawler that works with a 12V DC motor, with a meter counter, 1.2.3.4 cm and back 4.3.2.1 , and a degree counter from -15 to +15
I will have a camera on the crawler that will send me a video to the control station by a cable.
Can anybody tell me what kind of parts do I have to order?
Is it possible that all the data, ( range ant degree ) will be shown on the monitor/ laptop screen?
Regards
Rafi
Dear friend,
The crawler size is like a box 40cm long and 8cm wide and 8cm high. It is 4X4 drive, and there is a camera on it that I receive the video through the cable to the control box and it is displayed on the monitor. I am using a 6mm shaft to the wheel.
I prefer to mount the encoder and the counter on the crawler if it is possible and send all the data to the control panel with the cable, if it is more easy we can mount the encoder on the cable outside that it will measure how many cables are coming out from the box. Also, if it is possible I want to control the DC motor, forward/backwards, and the speed. I will order all the parts that you will tell me for the prototype and many more afterwards.
Sincerely,
Rafi
Dear Carlos,
Can you suggest what to order? For RB-spa-272, can I connect the encoder and the degree sensor so they both will be seen on the monitor, or it works only with PC? Please direct me to what I need to order.
I want to see on the monitor the encoder data 0-100meter and 100-0 meter when I drive back with accurate of centimeters
What kind of encoder do I need? And to see on the monitor as well the degree counter -15% - +15% the same as degree.
Thank you my friend
Rafi
P.S. I want to buy a DC motor controller with reverse option if possible
O.K
Can you send me please a link to the microcontroler, the 3 axis accelerometer, and for the encoder I will put it on the control cable while, and a link for the video card.
B/R
Rafi
If it is better to use a laptop to control everything; the tilt, distance, and the motor speed and direction I will do that although I prefer an analog control, I have 5V in the crawler
Rafi
Dear friend
I have disaid to order the fallowing farts…
For the tilt sensor, the RB-spa-290 for receiving between -15 antil +15 degrees
For the rotary incoder the RB-spa-618 for metering 1. a cable distanc with a flay whil that totch the cable 0-100 meter and back
For the micro controller the RB-Ard-34 to be connected with the above parts and transfer them bouth to an on screen card
The RB-Noo-02 / RB-Spa-272 for insert all the data on my analog monitor.
Please approve my list so I can order the parts.
I can send you my diagrams to a mail if you need more details.
Is all the parts come with connecting cables?
Can I get a connection diagram between all the parts? ( like wher to connect the tilt sensor and the incoder on the micro controller?and forward .
Forgiv me for my late replay I was in Angola Africa for an erjent work.
Do I need anything els to work this system?
Best regards
Rafi
Dear Carlos
This days the crawler is working and photographing.
I need all the parts from you so I can see how long the cable is out from the drum, and what is the pipe degree.
This day I can control the direction and the speed of it and it have a camera with a monitor and a recording system
Thank you
Rafi
We offer many microcontrollers which would suit your needs. If you are new to robotics, consider Arduino. A board like the ROMEO makes connections easy. We suggest a simple accelerometer such as the ±3g Triple Axis Accelerometer Breakout Board (ADXL335), though you will need to wire it yourself. The encoder should be chosen with the DC gear motor.
If you or the video feed, you will need an analog to digital video converter (if you use a laptop, you may need an external analog video to digital converter; we don’t offer such a device but you can find them online). The other option is, as you said, to use analog control (joystick or potentiometer). Choose whichever way you are more comfortable with.
If you want to overlay video on an analogue signal, you will need a module to overlay the telemetry data such as RB-Noo-02 or RB-Spa-272.
You can use XBee to send the sensor readings and distance sensors or encoders to read the distance, depending on the nature of the readings you would like to do.
If you provide more information about the size and load capacity requirements, we can help you choose an appropriate platform.
Form your description, it seems you already have the motors and the chassis. In order to control the motors, you could use an analogue motor controller along with potentiometers in order to control the speed.
You can also find encoders in the following section: robotshop.com/encoder-disks.html
In order to create the system you describe, you will need a microcontroller that will read the encoders and the tilt sensor and the control the display overlay module in order to show the values.
The precision of the encoders will mainly depend on your wheel size at cm resolutions. You will need to chose the ones that best fit your motors. As for tilt, we recommend using a 3-axis accelerometer such as: RB-Inn-78. The using gravity as a reference, you can compute the robot’s attitude.
Hi Rafi,
It seems your parts can work together but it is your responsibility to make sure you have everything you need to make your project. We can only help you with your selection and give you tips to get you started. The same goes for the connections, we cannot make the design work for you, plus it would defeat the purpose of making a robot.