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Tianjian Inertial 8K22A

The Chongqing Tianjian Inertial Technology Co., Ltd. 8K22A integrated navigation system serves UAVs and experimental rockets. MEMS inertial sensors, a high-dynamic satellite navigation receiver and navigation computing calculate position, velocity and attitude using integrated or pure inertial navigation algorithms. Main-unit weight is ≤300g, excluding supporting cables, the antenna and associated test cables.

Tianjian InertialDrone flight controller
Weight
≤300g
Dimensions
≤96 mm×64 mm×42 mm

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Product overview

The Chongqing Tianjian Inertial Technology Co., Ltd. 8K22A integrated navigation system provides position, velocity and attitude information for UAVs and experimental rockets. Its internal architecture combines MEMS gyroscopes and accelerometers with a high-dynamic satellite navigation receiver, navigation computer, power conversion circuitry and interface circuitry. Integrated navigation or pure inertial navigation algorithms process the carrier’s measurements. Functions include self-test, self-alignment, transfer-alignment parameter loading, transfer alignment, online upgrades, simulation and information exchange. Stationary-base self-alignment takes ≤60s, while the satellite receiver operates on B1/L1 with a 10Hz data update rate.

The main unit weighs ≤300g, excluding supporting cables, the antenna and associated test cables, and measures ≤96mm×64mm×42mm. It accepts DC16V–36V, with steady-state current below 0.5A and steady-state power consumption ≤10W. Two RF inputs are combined. Integrated navigation delivers horizontal position accuracy of ≤10m RMS, elevation accuracy of ≤12m RMS and velocity accuracy of ≤0.2m/s at 1σ. Heading accuracy is ≤5° at 3σ, and attitude accuracy is ≤3° at 3σ. Operating temperature is -40°C to +60°C; storage temperature is -45°C to +70°C.

Flight control & navigation

Specifications

Chongqing Tianjian Inertial Technology Co., Ltd. 8K22A specifications
SpecificationValue & conditions
Manufacturer and modelChongqing Tianjian Inertial Technology Co., Ltd. 8K22A integrated navigation system
Construction, applications and navigation processingFor UAVs and experimental rockets; combines MEMS gyroscopes, MEMS accelerometers, a high-dynamic satellite navigation receiver, navigation computer, power conversion circuitry and interface circuitry. Integrated or pure inertial navigation algorithms calculate attitude, velocity and position.
FunctionsSelf-test, self-alignment, transfer-alignment parameter loading, transfer alignment, inertial navigation with position, velocity and attitude outputs, online upgrades, simulation and information exchange
Angular measurement ranges
  • Heading: 0°–360°;
  • pitch: ±90°;
  • roll: ±180°
Angular velocity measurement range±500°/s
Acceleration measurement range±40g
Self-alignment time≤60sStationary base.
Operating frequencies and data update rateB1/L1; 10HzSatellite navigation receiver.
Horizontal positioning accuracy≤10mSatellite navigation receiver; RMS.
Maximum measurable altitude≥50kmSatellite navigation receiver.
Maximum measurable speed≥3000m/sSatellite navigation receiver.
Receiver velocity accuracy≤0.2m/sSatellite navigation receiver; 1σ.
Start timesCold start: ≤45s; hot start: ≤12sSatellite navigation receiver; cold and hot starts respectively.
Reacquisition time≤3sSatellite navigation receiver; loss of lock lasting less than 5s.
Position accuracyHorizontal: ≤10m; elevation: ≤12mIntegrated navigation; RMS.
Navigation velocity accuracy≤0.2m/sIntegrated navigation; 1σ.
Heading accuracy≤5°Integrated navigation; 3σ.
Attitude accuracy≤3°Integrated navigation; 3σ.
Gyroscope bias stability≤100°/h1σ; 10s smoothing.
Gyroscope bias repeatability≤100°/h1σ.
Accelerometer bias stability≤5mg1σ; 10s smoothing.
Accelerometer bias repeatability≤5mg1σ.
Power supply and currentDC16V–36V; steady-state current less than 0.5ACurrent measured in steady state.
Power consumption≤10WSteady state.
Weight≤300gMain unit; excludes supporting cables, antenna and associated test cables.
Dimensions≤96mm×64mm×42mm
RF channelsTwo RF inputs, combined
Insulation resistance≥10MΩBetween leads and housing; measured with a general-purpose digital multimeter.
Temperature rangesStorage: -45°C to +70°C; operation: -40°C to +60°CStorage and operation respectively.
Operating timeContinuous: ≥2h; cumulative: ≥600hContinuous and cumulative operation respectively.

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