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R&D IoT : 1 proposition of best electronic architecture for wireless data sensor transmission + Wiring diagram

Status: Closed
Prize: €60
Entries Received: 3
Winner: carloslasan

Winner

Contest Brief

We are looking for an electronics researcher to propose us 1 functional wiring diagrams and developped it further.

The specifications of the prototype are as follows:

We want a wireless transmitter,( Ex Node-MCU and ESP32) this transmitter must send data to a network server (in json). The data it sends comes from a pressure sensor allowing to obtain, at a lower cost, the weight varying from 1kg for a small model, to 50kg. This device must be powered by a replaceable battery. The aim of this project is to inform customers about weight threshold predictions.

We are waiting for a wiring diagram with the list of components used for this prototype + links for purchase - 1 week in Belgium.

In order to make our choice, we would like to have two lists of the components used + arguments as a proposal.

The list is as follows :

- Microcontroller
- Probes used ( 1kg and 10kg) same electronic characteristics
- Components for filtering
- Non-rechargeable battery ( A piezoelectric charging solution is a big plus ! )

It is on this exchange that we will decide on our collaboration. The wiring of the selecting will be the paid mission.

We have to launch this prototype quickly.

VDE

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“@carloslasan won the contest on 16 January 2020”

deneyervivien, Belgium.

Top entries from this contest

carloslasan Argentina

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jamrelectronics Mexico

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Public Clarification Board

carloslasan
- 4 years ago
Is it necessary to make any electrical decision based on the information obtained? Example electromechanical dosing actuator
If so, the energy of the actuator who supplies it?
- 4 years ago
carloslasan
- 4 years ago
Sorry for the trouble, a new query.
Is there a possibility of continuous or periodic mechanical movement in the immediate vicinity of the process? I am looking for the source of mechanical work to turn it into energy. Greetings.
- 4 years ago
carloslasan
- 4 years ago
Hello, I find your contest very interesting.
I have some solutions in mind. but I wanted to check the following:
-What frequency in the variation of weight will be had?
-Will it be used periodically or occasionally?
-What autonomy do you want to have in hours?
The design indicates that it cannot carry a rechargeable battery ... but they do assess whether a piezoelectric charging solution can be used. Could you clarify that requirement a little more?
Thank you.
Soon I will have my proposals.
regards.
- 4 years ago
1. Contest Holder
  - 4 years ago
  Dear Carlos,
  
  I appreciat your interesset by this projet.
  
  To answer at your questions :
  
  1. That depend on the observe subject : For 1 Kg : 100g every hours or 500g 2 times a day
  2. It will use all day, so the system must be low energy consumer. Maybe in "standby" until it has a weight changement
  3. The longer autonomy possible. A calcul for this is a plus.
  4. At least we want a non rechargeable battery. Of course, A piezo electric system include a rechargeable battery. We want wireless solution with the best autonomy. A self sufficent piezo electric is the best of best . Imagine that you give food/water to your dog/cat. We have to convert this energy to power the battery.
  
  Feel free to ask me,
  
  Vivien
  - 4 years ago