TDMG-106C Vehicle Gauge MEMS IMU

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Introduction
TDMG-106C MEMS inertial measurement unit is a product developed for the demand represented by vehicle navigation. The system uses multiple redundant MEMS inertial sensors, which can timely diagnose and process IMU faults and provide support for automotive functional safety. The TDMG-106C MEMS IMU is mainly composed of a three-axis silicon micro-MEMS gyroscope, a three-axis silicon micro-MEMS accelerometer, an information processing circuit, a system navigation software, a system structure component, a system test cable and a system test software. Its heading axis selects high accuracy gyroscope to aim at the characteristics of passenger cars, which can ensure that the product maintains a high heading accuracy, so as to realize long endurance and high precision dead reckoning with the assistance odometer under the condition of satellite lost.

Aim at passenger car navigation scenarios, the TDMG-106C is integrated with multiple redundant inertial sensors, which can realize the fault diagnosis and timely alarm of product output. For simple failures (such as single sensor failure), the fault can be isolated and the operation can continue.

By default, the following outputs are provided: 3D angular velocity, 3D acceleration, and gyro temperature. The chips inside the system are selected car grade devices.


Features
● Vehicle grade devices
● High precision Z axis gyro
● Multi-sensor redundancy and fault-tolerant design
● Volume, low weight, low power consumption
● -40℃ to +80℃ full temperature calibration compensation
● 1KHz high-speed sampling
● Resistant to harsh mechanical environment
● With software online upgrade function
● Sensor self-diagnosis
● Software online upgrade function

Application
● Vehicle navigation
● Mobile mapping
● Guidance control
● Vehicle and ship attitude measurement
● AGV car
● Port automation
● Unmanned aerial vehicle
● Unmanned vehicle
● Unmanned ship 

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Specification

ITEMS

TDMG-106C

Gyroscope

Measurement range(°/s)

±500(X,Y),±200(Z),

Bias(°/s)

≤0.1(X,Y),≤0.003(Z)

Bias stability(°/h,10s smooth)

≤10(X,Y),≤0.5(Z)

Bias instability(°/h,Allan)

≤4(X,Y),≤0.1(Z)

Bandwidth(Hz,adjustable)

50

Accelerometer

Measurement range(g)

±16

Bias(mg,full temperature)

≤5

Bias stability(mg,10s smooth)

≤100

Bias instability(mg,Allan)

≤30

Bandwidth(Hz,adjustable)

200

Electrical/Mechanical interface

Power supply(V)

3.3±0.1

Power consumption(W)

<1

Communication port

1 LVTTL port, 1 synch input, 1 synch output

Updating rate(Hz)

200

Size(mm×mm×mm)

37.70×24.15×9.50

Weight(g)

31.5±3

Environmental condition

Working temperature(℃)

-40~80

Storage temperature(℃)

-55~85

PIN definition

 

PIN No.

Definition

Note

1

IMU data synch output impulse

Only LVTTL signal, falling edge efficiency

2

Synchronous signal input

LVTTL signal

3

SPI Clock/ UART TX

SPI/UART multiplex

4

SPI Data Output /UART RX

SPI/UART multiplex

5

SPI Data Input

 

6

SPI Chip Select

 

7

Data Ready(SPI Ready)/SPI-UART Port Select

If short connected with GND, PIN 3 & 4 will be UART.

8

Enternal Reset

 

9

Standby

 

10

Power supply +

3.3V±0.1V

11

Power supply +

3.3V±0.1V

12

Power supply +

3.3V±0.1V

13

Power/Communication GND

Ground

14

Power/Communication GND

Ground

15

Power/Communication GND

Ground

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quotation

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