01 Creating the custom data logger

In order to record data, I have created a custom application that continuously records telephone reception of two major carriers AT & T, Sprint, T-Mobile, and Verizon at 2 second intervals. Since each mobile phone can record only one carrier at a time, our data logger consists of four iPhones 5S, all housed neatly in a shieldless case.

In two weeks our data logger scanned the entire subway system (once in either direction) to capture this unique dataset. It takes some time to plan the recorder route. Since several lines use the same track in a part of the route, these parts need to be measured only once (for example, 1, 2, 3 trains use 59 cent Columbus circle and 96 cents).

The following is the length of one train from Van Cortlandt Park to South Ferry. (Sprint, Verizon, AT & T, T-Mobile):

After 2 weeks of data collection, we verify our results by calculating the correlation between two way trains to ensure that our measurements are accurate.

We clean up the data, remove the error, and extract the data into different datasets for each row. This includes measurements from the four major carriers (AT & T, Verizon, T-Mobile, and Sprint).

To simplify this process, one of the products we specifically developed is Bluetooth and mobile phones for reading NFC temperature logger (which means short distance wireless communication) and setting of temperature parameters and related data It is a BLE temperature logger to use. These loggers are credit card sizes and are not a substitute for precious pharmaceutical payloads. There are several additional benefits: DOE temperature recorder can download data from all devices at once using Bluetooth. For example, when a batch arrives at a warehouse, the router automatically detects the router or trigger, recognizes when all other sensors are in range, and then automatically downloads the data. Instead of removing the recorder from each tray and opening the box and downloading all the data, you can also upload all the data to the block chain at the same time, keeping the BLE temperature recorder in the box.

Temperature Data Logger is a portable measuring tool that automatically records the temperature over time. The temperature data logger records and measures the active temperature change and stores it as digital data (log). Temperature data loggers are used to monitor temperature in specific rooms and to collect temperature data from various regional situations. There are various temperature data logger specifications. In most cases, a thermistor or thermocouple with built-in connection port for external power supply is built in. The Temperature Data Logger has a periodic measurement system that performs continuous data logging in some way. Warnings are displayed on some temperature data loggers, or they are out of the allowable range. Data acquisition of temperature data logger can be done via USB cable, RFID, wireless system, etc.