Greeve provides a number of products that enable platforms and platform sub-systems to be monitored. Data can be recorded and accessed in a number of ways and systems can be provided that are used on an install-and-forget basis with remote access to the data.

Condition Monitoring & HUMS

The Greeve Platform Condition Monitoring Unit (CMU) is an affordable embedded data logging system that monitors and records the status and operation of mobile platforms. It provides the functionality of a military HUMS (Health and Usage Monitoring System) for military vehicles and other land assets but is equally useful on commercial platforms and even remote fixed installations.

The unit interfaces to on-platform data sources and discrete sensors to measure the conditions of operation, the limits of performance parameters, and the usage history.

Typical interfaces may include CAN bus monitoring to record data (J1939 and others) and discrete analogue and digital sensors such as switch states, temperatures and pressures. Depending on the platform, CAN bus includes such data as fuel demand, engine temperature, boost pressure, vehicle speed etc.

The CMU can also be used to monitor battery condition and provide battery management functions including split-charge control.

Data is stored on internal memory or removable Flash media and can be recovered by changing the Flash device or downloading the data via the USB interface or optionally Ethernet, GSM or WiFi. The CMU can be interfaced to a PC (such as the Greeve Platform PC) to display live data.

The CMU is designed to operate in the harshest environments and reliably record the platform condition over long periods of time.

Standard Features

  • Environmental protection – IP67
  • Shock – 50g all axis
  • Operational temperature -20˚C to 70˚C
  • CAN II interface
  • USB 2.0
  • Dimensions 135 x 135 x 55mm (main body)
  • Power – 9 to 18v DC (24 to 36v option)

Military HUMS Features

  • Environmental Protection: IP67

  • Shock Rating: 200g all axes

  • Operational Temperature: -40°C to 80°C

  • Dimensions (nom): 212 x 142 x 61mm

  • Operating Voltage (nom): 24V DC

  • Connectors: D38999 Series III

  • Platform Communications: 2x MilCAN / J1939

  • Configuration/Download: USB 2.0

  • Analogue Inputs: 4 x 12bit

  • Digital Inputs: 4 x Schmitt Trigger

  • Digital Outputs: 2 x 200mA

  • Shock Monitoring: ±16g x 3 axis

  • Storage: 4GB (Option up to 64GB)

  • Interface Isolation: 1kV minimum


Generator Monitor & Control

The Greeve Generator Monitoring and Control unit is designed to provide remote access and control of on-site diesel and petrol generators. It provides automated functions with manual override. In manual mode the generator can be switched on and off remotely in a number of ways. The unit can be networked to dedicated control panels or a PC; interfaces include CAN Bus and USB and, optionally, Ethernet. Wireless and GSM interfaces are offered as options as well.


The controller can be put into automatic mode. In this configuration the system monitors the voltage on a supply line, either battery or other supply, and switches the generator on when the supply goes low. The controller can be configured to run for a period of time, to ensure full charge of back-up batteries, or until the normal supply is returned.

The monitoring functions of the unit enable usage duty cycles to be recorded and potential failures predicted. The normal engine parameters of temperature, speed, and oil pressure can be logged as well as the start battery voltage. Additional parameters can be added including the generated voltage and frequency and supplied current.

The system acts as an emergency shut-down control when parameters exceed configured levels.

Standard Features

  • Environmental Protection – IP67
  • Shock – 50g all surfaces
  • Operational Temperature -30ºC to +80ºC
  • CAN II interface
  • USB 2.0 interface
  • 6 switch/PWM 4A outputs
  • 4 channels of sensor/analogue input
  • 4 channels of switched/digital input
  • Pulse/speed input

Battery Monitoring

Batteries are a vital component in mobile platforms, remote installations, and backup power supplies and yet they are often abused through misuse, poor charging, deep discharge, and overloading. For some important installations this means that batteries are swapped out unnecessarily in case they are decaying and in other applications it means that the systems fail when demand is placed on them because there has been no warning of degradation.

The Greeve Battery Monitoring and Management System is a range of affordable components that enable the monitoring and management of battery systems, whether in a vehicle or as part of a backup power system. They range from simple charge and drain voltage displays to full battery charge, health and load management.

Our Battery Monitoring and Management System (BMMS) can be scaled to suit the application and budget. From the simple single or dual channel battery voltage display to the full networked Battery and Power Management system. The networked system uses Remote Interface Nodes (RINs) to measure the battery parameters and relay them back to the BMMS via a CAN network.

The BMMS is programmed to monitor, log, alarm and display the data depending on the application. Each RIN can interface to two separate batteries. The standard basic parameters include cell temperature and voltage; options include current and impedance.

Standard Features

  • Environmental Protection – IP67
  • Shock – 50g all surfaces
  • Operational Temperature -30°C to 80°C
  • CAN II interface
  • USB 2.0
  • Switched/alarm outputs 4A max/ch
  • Options
  • WiFi interface
  • Military Connectors
  • Current sensing
  • Impedance measurement