TDMS-300 MEMS inertial/satellite integrated navigation system

Introduction
TDMS-300 MEMS integrated navigation system is a highly reliable and cost-effective six-axis MEMS inertial/satellite integrated navigation system, which can be widely used in navigation, control and measurement fields represented by missile-borne and highly dynamic unmanned aerial vehicles (UAVS). TDMS-300 is mainly composed of three-axis MEMS gyroscope, three-axis MEMS accelerometer, information processing circuit, navigation software, structural components, test cable, test software, GNSS receiver (built-in).
The TDMS-300 MEMS series integrated navigation system integrates high-performance MEMS gyroscopes and MEMS accelerometers in a separate structure. The gyroscopes and accelerometers selected for the system represent the leading level of MEMS inertial devices. The zero bias of all temperature parameters, scale factor, non-orthogonal error and acceleration related terms are compensated in the system, which can maintain high measurement accuracy for a long time. At the same time, adaptive attitude algorithm is integrated in the system, which can ensure the measurement accuracy of attitude for a long time.
The following outputs are provided by default: 3D angular velocity, 3D acceleration, gyro temperature, accelerometer temperature, 3D attitude, INS/GNSS position, INS/GNSS speed.

Features
● high precision integrated navigation
● Built-in high dynamic missile-borne receiver
● Small size, low weight, low power consumption
● -40℃ to +80℃ full temperature scale compensation
● 1KHz high speed sampling
● Built-in adaptive Kalman filtering algorithm
● Resistant to harsh mechanical environment
● Online software upgrade function
● Inertial /GNSS integrated navigation function

Application fields
● Medium and long endurance UAVs
● Vehicle positioning and orientation
● Radar/infrared antenna stabilization platform
● Patrol Smart Munition
● Port measurement system
● mobile communication
● UAV/Vehicle/ship/boat attitude reference
● Attitude control
● photoelectric pod
● steady control and sight equipment

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Specification

MEMS Gyroscope
Measurement range（°/s）	400
Full temperature bias（°/h）	15
Bias stability（°/h，10s smooth）	3
Bias repeatability（°/h）	3
Non-linearity of scale factor（ppm）	100
Bandwidth（Hz）	100
MEMS Accelerometer
Measurement range（g）	30
Full temperature bias（mg）	2
Bias stability（μg）	100
Bias repeatability（μg）	100
Non-linearity of scale factor（ppm）	500
Bandwidth（Hz）	100
Attitude accuracy
Pitch（°，RMS）	0.05（GNSS aided）
Roll（°，RMS）	0.05（GNSS aided）
Heading（°，RMS，GNSS aided，dynamic condition）	0.2
Electrical/Mechanical Interface
Power supply （V）	9V～36V
Power consumption(W)	5
Start-up time（s）	2
Communication port	2 x RS-422，1 x RS-232
Updating rate（Hz）	200Hz
Size（mm×mm×mm）	96mm×75mm×39mm
Weight（g）	≤200
Environmental conditions
Working temperature（℃）	-40～80
Storage temperature（℃）	-55～85

Pin definition

Pin No.	Definition
1	28V_SYS+: Power +
2	28V_SYS+: Power +
3	GD_RSS422_A: Navigation communication A
4	GD_RS422_B: Navigation communication B
6	IMU_RS422_A: IMU communication A
7	IMU_RS422_B: IMU communication B
8	IMU_RS422_Y: IMU communication Y
9	IMU_RS422_Z: IMU communication Z
10	RS4SS_GND: Communication ground
12	28V_SYS-: Power -
13	28V_SYS-: Power -
14	GD_RS422_Y: Navigation communication Y
15	GD_RS422_Z: Navigation communication Z
16	RS232_RX
17	RS232_TX
18	RS232_GND
21	SHIELD: Shield ground

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