Tianjian Inertial 8K22

Name: Chongqing Tianjian Inertial Technology Co., Ltd. 8K22
Brand: Tianjian Inertial

The Chongqing Tianjian Inertial Technology Co., Ltd. 8K22 is an integrated navigation system for UAVs, experimental rockets and other platforms. Combining MEMS inertial sensors, a high-dynamic satellite navigation receiver and navigation computing, it calculates attitude, velocity and position using integrated or pure inertial navigation algorithms.

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Product overview

The Chongqing Tianjian Inertial Technology Co., Ltd. 8K22 integrated navigation system calculates platform attitude, velocity and position using integrated navigation or pure inertial navigation algorithms. Designed for applications including UAVs and experimental rockets, it incorporates MEMS gyroscopes, MEMS accelerometers and a high-dynamic satellite navigation receiver. A navigation computer, power conversion circuitry and interface circuitry form part of the system. Functions include self-test, self-alignment, transfer-alignment parameter loading, transfer alignment, online upgrades, simulation and information exchange.

The 8K22 measures heading over 0°–360°, pitch over ±90° and roll over ±180°, with angular velocity and acceleration measurement ranges of ±500°/s and ±30g. Its satellite receiver operates on B1/L1 with a 10Hz data update rate. Stationary-base self-alignment takes ≤60s. Integrated navigation provides horizontal position accuracy of ≤10m RMS and elevation accuracy of ≤12m RMS, with heading and attitude accuracy each ≤0.5° at 3σ. The system operates from DC16V–36V and supports operating temperatures from -40°C to +60°C.

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Specifications

Chongqing Tianjian Inertial Technology Co., Ltd. 8K22 specifications
Specification	Value & conditions
Product and construction	8K22 integrated navigation system incorporating MEMS gyroscopes, MEMS accelerometers, a high-dynamic satellite navigation receiver, a navigation computer, power conversion circuitry and interface circuitry.
Functions	Self-test, self-alignment, transfer-alignment parameter loading, transfer alignment, inertial navigation outputs, online upgrades, simulation and information exchange.
Heading range	0°–360°
Pitch range	±90°
Roll range	±180°
Angular velocity measurement range	±500°/s
Acceleration measurement range	±30g
Self-alignment time	≤60sStationary base.
Satellite receiver frequency bands	B1/L1
Satellite receiver data update rate	10Hz
Satellite receiver horizontal positioning accuracy	≤10mRMS.
Maximum altitude measurement	≥500km
Maximum velocity measurement	≥3000m/s
Satellite receiver velocity accuracy	≤0.2m/s1σ.
Satellite receiver startup times	Cold start ≤45s; hot start ≤12sCold start or hot start, respectively.
Satellite reacquisition time	≤3sLoss of lock lasting less than 5s.
Position accuracy	Horizontal ≤10m; elevation ≤12mIntegrated navigation; RMS.
Velocity accuracy	≤0.2m/sIntegrated navigation; 1σ.
Heading accuracy	≤0.5°Integrated navigation; 3σ.
Attitude accuracy	≤0.5°Integrated navigation; 3σ.
Gyroscope bias stability	≤5°/h1σ; 10s smoothing.
Gyroscope bias repeatability	≤3°/h1σ.
Accelerometer bias stability	≤0.3mg1σ; 10s smoothing.
Accelerometer bias repeatability	≤0.3mg1σ.
Electrical supply and consumption	DC16V–36V; current less than 0.5A; power consumption ≤10WCurrent and power consumption are steady-state values.
RF inputs	Two RF inputs, combined
Insulation resistance	≥10MΩMeasured between leads and housing with a general-purpose digital multimeter.
Temperature ranges	Storage: -45°C to +70°C; operation: -40°C to +60°CStorage and operation, respectively.
Working time	Continuous ≥2h; cumulative ≥600hContinuous and cumulative operation, respectively.