On-board programmable sensors

	Internal temperature -20°C to +60 °C Resolution: 0.1 °C Precision: +/- 0.5 °C
	External PT100 terminal -100°C to +50°C Resolution: 0.2°C Precision: better than 1°C
	Relative humidity 0 to 100 % Resolution: 1% Precision: typ. +/- 2%
	Atmospheric pressure 50 to 115 kPa Resolution: 0.2 kPa Precision: typ. +/- 1kPa.
	Light levels 1 lx to 50000 lx 256 levels Spectral range 430 to 610 nm
	Tilt & 3D orientation 0 to 180° Resolution: 1 degree
	G-forces -8 to 8 G Resolution: 0.1 G
	Impact / Free-fall counter Continuous sampling at 400 Hz

About EMX-1

EMX-1 hardware is based on very sucesfull smart enviromental probe EMM.

Utilising multitude of acurately calibrated sensors controlled by state of the art firmware, EMX-1 Smart Probe is designed to collect precise environmental data ( ambient temperatures, dry-ice temperatures, light levels, relative humidity, atmospherical air pressure, 3D-orientation with impact / free-fall detection) and convert them to digital data.

Collected data is time / date stamped and stored into EMX's internal cyclic buffer. From there it is periodically send through serial interface to the back-end system.

If the probe is not able to transmit collected data to backend system then all the collected information remains stored in it's cyclic buffer from where it will be re-send when the communication with backend system is restored.

Programmable parameters

Fully programmable through serial data line
On / Off setting for each sensor
Ultra low power consumption
Programmable data collection and sending intervals
Alarm levels for light & temp. sensors

Mechanical design

EMX1 is very small (20 x 60 mm).
One side is consumed by 8-pin XLR connector for connection of an external PT100 sensor and serial data line. The other side is a porous plug of sintered bronze. The body is made from transparent Plexiglas. Whole device has IP40 protection degree.

Regulatory compliance

Calibrated at time of manufacturing
Traceable to National Institute of Standards & Technology(NIST)
Software & firmware validated to Good Automated Manufacturing Practices (GAMP)
21 CFR Part 11 compliant

Operations

Optional event communications via GSM or SMS
No software required
Compatible with Transport Environment Monitoring System (TEMS) which eliminates most human intervention, reduces errors, increases productivity, and validates transports

HW and SW specification

Small in size (6cm x 2cm)

Ultra-low power consumption. No need for battery or special power supply. Power is derived form RX/TX data lines.

Electrical and comunication parameters: UART levels: 3V TTL , 9600 bps,N,8,1.

Reports back therm-sensor serial number for calibration protocols verification.

Build in real-time clock and calendar.

Every time probe is reset it automatically performs internal GMT clock synchronization with the back-end system. It is possible to re-sync the EMX's internal clock with up-stream system any time.

All collected data is stored in internal cyclic buffer with depth of 3500 measurements. In case of buffer overrun , the oldest data is being replace with the newest data.

Each collected record is uniquely marked with 3bytes virtual address. In case of shortest possible sampling period (one minute) this virtual address range should last for 31 years before overrun. The virtual address is incremented by one with each data stored into internal memory. Back-end system can use this virtual address as a check for transmitted data integrity. In case of missing data block, probe can be requested to re-send historical data from it's memory buffer.

Each environmental data send by probe is protected by check-sum code to detect possible information damage while transmitted to back-end system.

Unique serial alpha-mumerical number assigned. This serial number uniquely identifies each data data packet received from probe and allows to apply customized calibration tables on the back-end side. The serial number is not only reported with each data sample send out through serial line, but as well as with every command response generated by EMX probe.

Programmable data accumulation - This parameters tells the EMX probe to hold back the data transmission until specific number of samples is collected. This accumulated data is then send to the server all at once. In case the accumulation is set to zero the probe does not send any data to the back-end system and only stores it to it's internal buffer.

Command to remotely read-out range of historical measurement data stored in EMX's memory buffer (based on virtual address assigned to each of the collected samples).

Out-of-order excursion detection settings (upper and lower) for light, tilt and internal temperature sensor.

Excursion level for illumination is being checked once per 30s. (if activated).

Excursion level for internal temperature sensor is being checked once in a minute.(if activated).

Excursion level for tilt alert is checked every minute (if activated).

3D orientation and impact detection is monitored continually with frequency 400Hz.

Programmable accelerometer setting. (G-Force level detection, minimal impact duration in range 0-159ms, after impact inhibit time 0-319ms).

Out-of-order reporting: In case of any excursion is detected, EMX1 tries to send the alert data immediately without respect to programmed sampling and accumulation parameters.

Each detected excursion stored in memory is especially marked with alert flag bit set. Both direction of crossing the excursion level is reported.

Implemented SW loader allows update of internal EMX's firmware through special USB cable.

FOTA (Firmware Over The Air) remote FW programming allows remotely replace EMX's internal FW while attached to communication terminal.

Watchdog security circuit - This circuit restarts the EMX1 probe in case of main SW loop lock-up.

Detailed power-management features - EMX1 suspends and put into sleep mode every sensor individually when idle or not used.

EMX monitors safe voltage levels needed for writes into internal NVRAM memory. Under safe levels all writes to internal FRAM memory are prevented in order to protect stored data against low-voltage-write damage.

EMX monitors its actual power voltage. If this voltage drops under sensors safe operational levels then the probe will suspend all it's operation and will automatically reboot after safe voltage level is restored. This ability ensures defined state of operation for all on-board sensors.

Ability to combine multiple data samples and commands into one data package to save data costs.

Detailed communication and programming protocols available upon request.

Remotelly configurable EMX's parameters

Read_out of serial number

Read-out of actual virtual address range and probes internal settings.

Programmable communication terminal's access password

Individually selectable which of environmental values should be monitored / checked against programmed excursion levels.

Samples collecting period ( measurement period ). Range of 0 – 255 min / sample.

Programmable samples accumulation value – Probe suspends all data transmission to back-end server until this amount of samples was collected.

Programmable Illumination excursion levels low and high. If “0” is programmed in both parameters, then excursion detection in illumination levels is disabled.

Programmable Internal temperature excursion levels low and high. If “0” is programmed in both parameters, then temperature excursion detection is disabled.

Fix period for illumination excursion detection ( 30s / check )

Fix period for internal temperature sensor excursion detection ( 1 minute / check )

Impact level detection parameters ( G-Force: -8G to +8G, Impact length: 0-159ms, after impact inhibit: 0-319ms.)

Command to reset EMX's virtual address range.

Command to re-syncing EMX's internal clock

Programming of “FRAM safe write voltage level”

Programming of “Sensors safe operation voltage leve”

Ability to re-sending any data stored in EMX's internal buffer.

Command to force internal clock synchronization.

Command to activating remote Flash FOTA mode.

Configurable signalization LED settings. ( OFF, ON, Timed ON for 0-255 minutes ).

Programmable serial debug mode ( for testing and debugging )

On-board programmable sensors

Internal temperature

External PT100 terminal

Relative humidity

Atmospheric pressure

Light levels

Tilt & 3D orientation

G-forces