Gen4 - General - Gen 4 Components Outline

Gen4 - General - Gen 4 Components Outline

Hardware Overview 




Display
The Model 6205 Display Module is the main HMI device for the Gen4-LMS. It is used to display information to the operator. It contains a built in touch screen to allow the operator to interact with the system, and dual audio speakers. It contains a linux based multimedia processor with advanced 3D graphics capabilities. It also displays the camera images to the operator. The display is mounted inside the cabin. 

The display process is used to generate the LCD display images and speaker sounds used by the operator. It also controls all the hardware elements of the display module (including the LCD brightness and sound volume). Along with the main screen and cameras the display process can also show web pages from the onboard web server. 

Safety Processing Module (SPM)
The Model 6204 Safety Processing Module (SPM) is the main processing unit for the Gen 4 and is connected to all other components. It contains two separate processors; a safety processor for all safety related processing and a linux based processor for advanced HMI functionality (including a Wi-Fi interface). It contains on board sensors to measure the chassis angle. It also performs all the safety and load measurement calculations. The safety processor contains two independent channels for reliability and connects to the other external sensors via various methods. It is capable of storing the configuration for the machine and current attachment, therefore, it is able to operate without the LMP on the linux processor. The SMP also runs a number of safety checks on itself and the other sensors to determine any hardware faults and can generate over 100 different fault codes to isolate the hardware fault.  The SPM is mounted under the cabin side cover (under the boom). 

BPS
The Model 6207 Boom Position Sensor (BPS) is used to determine the current boom orientation by measuring the boom angle & extension. It has a dual channel architecture and contains two of each sensor and processor. The sensor measurements are transmitted to the safety processor in the SPM via CAN bus using the J1939 protocol. The BPS is mounted on the end of the base boom section. 

Stow Switch
The stow switch is used in the boom extension measurement (performed by the BPS) and indicates when the boom is fully retracted (at 0 extension). It consists of a single proximity switch which is mounted at the rear of the boom - at the back of the machine. The proximity switch connects to the safety processor in the Safety Processing Module via two digital inputs.

Pressure Sensors
There are a total of 4 pressure sensors that measure the pressure applied by both the lift and compensation cylinders. Each pressure sensor contains a dual channel architecture (each with a separate output signal). The output connects to the safety processor in the Safety Processing Module via a total of 8 analogue inputs. The pressure sensors are installed in the lift and compensation cylinders.

Light Tower
The light tower is used to indicate the current safety state to workers around the machine. It consists of 3 colored lights; green - normal, yellow - warning, red - alarm and is controlled by the safety processor. The light tower is mounted on the roof of the cabin.

Cameras
The system offers a two analog camera capability (one reversing camera and one forward camera).  The reversing camera is used to see what is behind the vehicle whilst reversing and the forward camera is used to see the front right wheel when the boom is blocking the view from the cabin. The reverse camera is automatically activated when the machine is in reverse drive and same with the forward camera when the machine is in forward drive. The analogue camera outputs are connected to a camera switch in the Safety Processing Module.  


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