I want to take a PR52-33E Industrial Wireless Vibration And Temperature Sensor and have it communicate with a PR55-17B Industrial IoT Wireless to Ethernet Modem. The modem will use an ethernet cable to a laptop.
Do I need to use the Alpha Station? I am planning on just using a laptop and ethernet cable.
What is the transmitted data format at the laptop end? (I will write a C program to read the data.)
Is there a way to setup the vibration sensor’s data rate? I am assuming there is a way to use commands with the vibration sensor. I assume the documentation has the command set.
(I don’t mind a faster data rate. I can look at the data and do a basic average, look at high and low values, etc.)
A vibration sensor that can transmit data at 1 sample per second over wireless.
The PR52-33E looks like it will do the sampling we need. The issue is getting the data from the vibration sensor to the “base station”, eg someplace with a laptop to record the data.
If the vibration sensor transmits more than once-per-second, we can live with that, as long as multiple vibration sensors, each sending data, do not saturate the base station. For example, if the vibration sensor sends 10 samples per second, we can do an average.
We are looking for three conditions: quiet (off), a fan on, and the unit is full-on. We expect to see these three vibration levels. The units are rooftop air conditioners (A/C). There will be several A/C units (don’t have an exact count, but assume 10 to 20 A/C units).
The critical part is not the number of samples per second, the critical part is getting the data to a base station laptop inside a building. If we need to, we can put the laptop and base station in a pelican case and run power to it.
Bottom line: will the PR55-17B Ethernet modem work for getting the data from several PR52-33E vibration sensor units?
Also, we are assuming the vibration data is either text, or easily parsed byte stream. Text is the easiest (obviously). The description of the PR52-33E does not say.
There is a note about using the Zigmo/Wireless router. Is that a viable alternative?
An alternative is the 900HP-S3B Wireless Modem - will that work? According to the description is “yes”. But is the PR52-33E a “900HP-S3B device” - I suspect “no”.
i don’t think there is ANY sensor which can send data at 1 sec interval.
You might get away with having couple of sensor sending data at 5 sec interval and one gateway. if you increase number of sensor it will choke the RF.
I will recommend this sensor
Here is how it works
it will send data after an interval, lets say you sett hat interval to 1min. so after every one minute it will send its readings.
it will send when the acceleration threshold crosses the pre defined interval. so lets say when the fan is on the acc is 200mg. so as soon as the acc is above 200mg it will immediately send you a message.
by looking at the acc value you can determine that if the Fan is on or the unit is full on.
after sending this message it will go back to sleep for next one minute. after a minute it will again wake up take readings and send it and start listening for thresholds again.
It wont send thousands of packets over the RF. it will analyze them locally and if it finds that the readings are above the threshold it will send.
By doing this you will GET what you are looking for without
chocking the network
killing the batteries
can have multiple sensor with one modem
Yes, You can have multiple sensor with PR55-17B.
You dont have to use Alpha station.
The data packet is just few bytes which can be decoded in any software with minimal coding.
Let me know if you any questions.