WIXLIB

Onboard EMG SensorTrigno Avanti sensors support a low noise, high fidelity sensing circuit fordetecting EMG (electromyographic) biofeedback signals from the surface of theskin when muscles contract. Sensor bandwidth is selectable between 10-850Hzand 20-450 Hz and the input range of the sensor can be selected between 22mVor 11mV depending on user needs.Inertial Measurement UnitTrigno Avanti Sensors have a built-in nine DOF inertial measurement unitwhich can relay acceleration, rotation, and earth magnetic field (compass)information. Users can leverage this information to discern movement activitytime-synchronized with the EMG signals. One of four ranges can be selected foreach sensor to span 2g to 16g for accelerometer outputs and 250 /s to 2000 /s for gyroscope outputs. The sensor is capable of estimating orientationin 3D space from the nine channels of information.Dual Mode “BLE-Base” CommunicationTrigno Avanti sensors are capable of communication with a PC-connectedBase station using the Trigno custom wireless communication protocol, or withAndroid devices using the Bluetooth Low Energy (BLE) industry standardprotocol. Note that the information bandwidth when operating over Bluetoothis limited by the Bluetooth protocol and the host device capabilities.Wireless Communication DistanceThe Trigno wireless communication scheme offers robust data transmission forup to 16 sensors with a nominal distance of 20 meters. Under optimalenvironmental conditions (no RF path obstructions or interfering sources), thisnominal distance can be notably superseded.Data SynchronizationData from each sensor and from each channel within a sensor are timesynchronized over the Trigno wireless communication protocol such that notime skew between data exists. A maximum of 16 sensors can stream data to ahost base station at one time. These features are available only whencommunicating with the PC-connected Base Station; the Bluetooth/BLEprotocol does not guarantee latency.Rechargeable BatterySensors contain a sealed rechargeable lithium polymer battery for multiplehours of continuous use. Battery life can be extended when making use of lowpower modes. Actual duration will depend on usage conditions, which areexpected to vary between 4 to 8 hours of performance. Charge status isconveniently reported through the wireless communication.10MAN-031-1-6

Sealed EnclosureThe environmentally sealed enclosure protects electronics from the ingress ofliquids and other environmental elements and provides a high standard of usersafety and durability.Internal Magnetic SwitchTrigno Avanti sensors are equipped with an internal magnetic switch which isused to turn the sensors “on” and perform RF pairing operations. To activatethe internal magnetic switch, the sensor must be placed on the magnet locklabel located on the Base Station charging cradle. The internal magnetic switchwill only react when sensors are undocked from the charger or when thesoftware performs an RF pairing operation. Exposure to any magnetic fieldsoutside of these two qualifying conditions will be ignored by the sensor. Theinternal magnetic switch is a feature that removes the need for a mechanicalbutton and improves sensor durability and performance.Sensor LED Feedback StatesTrigno Avanti sensors indicate their status through various LED arrow colors andblink patterns as indicated in the table below. Each of these states is describedin subsequent sections of this User’s Guide.89101112StateCommon StatesPower OffPower On/ActivateChargingCharge CompleteIdentification ModeScan (Startup)Power Up ErrorTrigno RF ModeScan (Base)Low Power Scan (Base)Data Collection (Base)Configuration Change (Base)Pairing (Base)13Pairing Success (Base)Greenrapid flash ( 6x)14Pairing Fail (Base)BLE ModeAdvertise (BLE)Low Power Advertise (BLE)Data Collection (BLE)Idle (BLE)Reddouble flash( 3x)CyanCyanBlueMagentaSlow flashoccasional flashslow flashslow rGreenWhiteAmber/CyanRednonefadesolidsolidrapid flashslow flashslow flashAmber/GreenAmberGreenGreenAmberSlow flashOccasional Flashslow flashrapid flash (3x)solidArrow Display//////////////////Table 1: Sensor LED functions.Trigno Wireless Biofeedback System User’s Guide11

LED State Descriptions1) Power Off: No LED arrow activity is present when the sensor is off.2) Power On: When undocked, the sensor illuminates white and fades toblack. A magnetic field will turn the sensor on within 6 seconds, otherwisethe arrow fades to dark and sensor turns off.3) Charging: Sensor charging in the Trigno Base Station is denoted bycontinuous amber LED arrow illumination.4) Charge Complete: Once the sensor’s internal battery has been fullycharged, the LED arrow illuminates a continuous green.5) Identification Mode: The arrow blinks white upon this software commandso that it can be easily identified and located.6) Startup Scan: Upon power-up, the sensor actively searches for a host toconnect to, such as a PC Base Station or BLE tablet.7) Power Up Error: Sensor fails self-check on power up.8) Scan (Base): Sensor was previously paired and is scanning for the activebase station.9) Low Power Scan (Base): Sensor was previously paired and has beenscanning for the active base station for more than 5 minutes.10) Data Collection (Base): Data from the sensor are streaming to a paired PCconnected base station.11) Configuration Change (Base): The sensor acknowledges a change inconfiguration sensor from the host base station.12) Pairing (Base): Sensor is performing a pair operation with the base host.13) Pairing Success (Base): Sensor successfully completes a pair operation withthe Base Station host.14) Pairing Fail (Base): The pair operation did not complete successfully withthe Base Station host.15) Advertise (BLE): Sensor is broadcasting to connect with a BLE host.16) Low Power Advertise (BLE): Sensor is broadcasting to connect with a BLEhost for more than 5 minutes.17) Data Collection (BLE): Sensor is sampling and streaming data to BLE host.18) Idle (BLE): Sensor is waiting for a Bluetooth BLE command.12MAN-031-1-6

Base Station FeaturesEach Base Station is equipped with the following features: high speed USB communication with PCrecharging cradle for 16 sensors64-channel analog outputs 5V analog output rangedetachable antennaconvenient carry case designcommunication & power feedback LEDsfull trigger capability (Start/Stop, Input/Output)Medical Grade Universal Power Supply.Figure 1: Trigno System Base Station for sensor recharging and communication.Recharging Cradle: The Trigno Base Station is equipped with 16 charge pocketswhich can accommodate Trigno sensors for charging. The pockets are keyed sothat sensors can only be inserted in one orientation.Medical Power Supply: The system includes a universal 12V medical gradepower supply for operating the base station. International plug adapters areincluded for connection to local mains power requirements.USB Communication: The Base Station compiles data received from the activewireless sensors and transfers it over a USB 2.0 compliant connection to aWindows PC.Analog Outputs (If Equipped): The Base Station is equipped with two 68position analog output connectors that can be used to interface with analogdata acquisition systems. Biofeedback signals acquired by the wireless sensorsare made available as analog signals spanning a 5V range.Trigno Wireless Biofeedback System User’s Guide13

Trigger Capability: The Base Station is equipped with a trigger port that can beused to synchronize the starting and stopping data streams with 3rd partyequipment. The Trigger Module is required for making device connections.Base Station LED Feedback StatesTrigno Base Stations are equipped with two LEDs that indicate power on/offand communication function (if equipped) as described in the table below:StateColorPatternLED Display123Power OffStandbyOffGreennonesolidData StreamingGreenflashing/4Communication ErrorGreendouble flash/Trigno Lite USB AdapterFor portable or space-constrained needs, the Trigno Lite USB Adapter offersan alternative path for wireless communication, allowing up to four sensors tocommunicate with a PC/laptop over a USB 2.0 compliant port.State1234StandbyConnectedStreamingPairingFW UpdateLED Patternsolidflash, 1 Hzflash, 4 Hzflash, 10 Hzslow ‘breathing’Figure 2: Trigno Lite USB Adapter.Charge-16 StationA 16-sensor recharge station is available for the sole purpose of sensorrecharging. This component has the same physical appearance as the BaseStation but does not have any wireless or USB data capacities. Charge operationis otherwise identical to that of the Base Station.Figure 3: Trigno System “Charge-16” Station for sensor recharging. No wireless or digitalcommunication is available on the Charge-16 component of the system.14MAN-031-1-6

Charge-4 StationA compact 4-sensor recharge station is available for the sole purpose of sensorrecharging. Charge operation is identical to that of the Base Station, and usesthe same power supply, but does not support any wireless or USB datacapacities.Figure 4: Trigno System “Charge-4” Station for sensor recharging. No wireless or digitalcommunication is available on the Charge-4 component of the system.Laird USB RF AdapterThe Laird USB RF Adapter (Laird Part #451-00004) is included with the TrignoSystem to support firmware updatingTrigno Sensors when necessary. Pleasedownload the PC Firmware Update Tooland its associated User’s Guide atwww.delsys.com.Trigno Wireless Biofeedback System User’s GuideFigure 5: Laird USB RF Adapter15

Getting Started with the Trigno SystemPowering the Base StationTrigno Systems are equipped with a universal medical power supply and areprovided with interchangeable country-specific plug adapters. Connect theTrigno power supply to the circular DC jack located on the side of the BaseStation. Energize the power supply by connecting it to a Mains outlet or to anisolation transformer. The power LED on the Base Station will illuminateanytime power is applied.Trigno Systems are specifically designed and approved tofunction only with the Power Supply provided. Power Supplysubstitutions constitute a violation of the medical safetyapprovals and will void the warranty.Figure 6: Connecting the SC-P05 power supply to the Base Station.Charging the SensorsAll sensors are fitted with a sealed lithium polymer cell and are charged withthe provided base station powered from a universal medical grade powersupply. A full charge will generally require three hours or less to complete,depending on the battery age, usage history, and particular charge conditions.The sensor arrow will glow amber during charging and illuminate green uponcharge completion. It is recommended to keep sensors docked and chargingeven when not in use to maximize battery life, as sensor batteries will selfdischarge with time and will degrade if left uncharged for extended periods oftime.16MAN-031-1-6

Figure 7: Docking a sensor in the charge cradle (left). When docked, sensors will turn offand begin battery charging indicated by an amber LED indicator. Once fully charged, thesensor LED indicator shows green (right).Battery PerformanceBattery performance and longevity is subject to a myriad of factors, whichinclude charge/discharge conditions, usage scenarios, number ofcharge/discharge cycles, environmental temperature factors, and cellmanufacturing parameters which are subject to statistical variations. Typicalindustry expectations assume an 80% charge capacity derating after 2-years or300 charge/discharge cycles. Sensors are equipped with battery chargemonitoring and automatic sensor turn off when charge is depleted to avoiddeep discharge scenarios. Storage at temperature outside the 5-45 C maydamage the battery.Turning the Sensor ONTrigno Avanti sensors are automatically turned on when they are removed froma powered charging dock. The sensors must be docked for a minimum of 3seconds in the charge cradle, however, for the self-powering scheme to initiateupon undocking. Once undocked, the arrow illuminates to white and the sensormust be tapped on the cradle magnet to complete the power up sequence. Thearrow will fade to black within 6 seconds and the sensor will turn off if nottapped on the cradle magnet. See Figure 8 for a pictorial representation of thepower-on sequence.Trigno Wireless Biofeedback System User’s Guide17

a)b)d)c)Figure 8: To turn sensors on: a) dock for 3 seconds or more, b) remove from cradle, c) tapsensor on magnet within 6 seconds to (d) complete power-up sequence.Turning the Sensors OFFThere are three mechanisms that will turn the sensors off.a) Dock Sensors in Charger: docking the sensors in the charge cradle willautomatically turn the wireless communication system of the sensor off andengage the battery charging circuit.b) Undock Sensors, No Magnet: Undocking the sensors to initiate the power upsequence and allowing the 6-second magnetic activation window to lapse willturn off the sensors. Unplugging the base station will turn off all docked sensors.c) Software Issued Command: Sensors that are paired with the base station andcommunicating with the host software application can be turned off by way ofan “off” command sent from the software application. Please refer to thesoftware

(electromyographic) and biofeedback signal detection reliable and easy. The system transmits signals from Trigno Avanti sensors to a receiving base station using a time-synchronized wireless protocol that minimizes data latency across sensors. The core architecture of the Trigno System is designed to support high