Indispensable components for DIY drones

 

The cost-effective choice of drone sensors: revealing the secrets of high-performance nine-axis IMU

Sensors are an important part of drones and are the key to drone navigation, stable control and precise flight.

Gyroscopes and accelerometers provide carrier angular velocity and acceleration, which can be used to calculate attitude, speed, displacement and other information. Magnetometers can provide magnetic north direction.

Our IMU ER-MIMU-07 is a nine-axis IMU that integrates these three high-performance sensors. It is small in size and light in weight while ensuring performance, making it very suitable for drones.

**Lower price, higher performance**

Simplify and reduce design costs while maintaining high performance. Lower price than STIM300, but higher performance.

**Attitude control**

Gyroscope measurement range is 400º/s, bias instability is 0.3 º/h. Accelerometer bias stability is 50ug, bias repeatability is 100ug.

It can detect changes in the attitude of the drone in real time, quickly respond to any unreasonable attitude changes, and stabilize the drone.

**Navigation**

Combined with other sensor data, it can help determine the position and direction of the drone for navigation.

The volume is only 38.6x 44.8 x25.5mm, the weight is ≤70g, and the compact and small design can be easily installed on the fuselage of the drone.

**Widely applied**

In addition to drones, it can also be applied to other unmanned systems, such as autonomous driving of unmanned vehicles, unmanned ships USV and underwater vehicles UAV.

If you are interested in this and would like to know its data sheet.

You can click on links. Ask directly at bottom of page (please indicate your source): https://www.ericcointernational.com/inertial-measurement-units/mems-inertial-measurement-unit/er-711-mems-inertial-measurement-unit.html

You can also take a screenshot and send it directly to this email address: 

 ericco188@ericcointernational.com

An IMU designed specifically for drones, with multiple sensors integrated

 

Sensors are the core components of drone flight control systems, which can help drones achieve multiple functions such as attitude control, navigation, flight control, etc.

A basic drone needs to have characteristics such as stability, accuracy, low power consumption, and environmental perception. We currently have an IMU ER-MIMU-16 that perfectly meets these requirements.

**Multiple high-performance sensor integration**

Most IMUs only have built-in gyroscopes and accelerometers. Our IMU integrates sensors such as gyroscopes, accelerometers, magnetometers, and barometers (altimeters), which are very suitable for drones.

Gyroscope: dynamic measurement range: ±450º/s, bias instability :0.3º/h;

Accelerometer: dynamic measurement range: ±30g, bias instability: 10ug;

Gyroscopes and accelerometers provide the angular velocity and acceleration of the drone. These data can be calculated to obtain information such as the drone's attitude, speed, and displacement.

Magnetometer: dynamic measurement range ±2.5Gauss, can measure the strength and direction of the magnetic field, and provide the magnetic north direction.

Barometer: pressure range 450~1100mbar, by measuring atmospheric pressure, the data provided can assist the drone in navigation, rise to the required height, and accurately estimate the ascent and descent speeds.

**Lightweight design, easy to install**

This IMU has a volume of 47×44×14mm, a thickness of only 14mm, and a weight of 50g. It can be easily installed in various drones.

**SPI communication interface**

This type of communication method has a high data transmission rate and can perform high-speed data communication. It can also send and receive data at the same time, doubling the efficiency.

If you are interested in this and would like to know its data and price

You can click to view detailed information and then send an email inquiry：https://www.ericcointernational.com/inertial-measurement-units/low-cost-inertial-measurement-unit.html

You can also take a screenshot and click on the email to ask for detailed information immediately： ericco188@ericcointernational.com 

The integrated navigation: escorting safe flight of drones

 The integrated navigation: escorting safe flight of drones

GNSS systems (such as GPS, GLONASS, BDS, etc.) provide positioning services with global coverage, but the signals may be blocked or interfered with. They are usually combined with inertial navigation systems to form the integrated navigation system, which can be used in various unmanned systems.

At present, integrated navigation has been widely used in UAVs. It can perform positioning and orientation, and provide attitude, heading and altitude information to the flight control system of the UAV.

The flight control system combines other sensor information to achieve automatic flight, and can also use the combined attitude information to achieve fuselage attitude stability.

We have an integrated navigation system ER-GNSS/MINS-05, which is the most cost-effective one. It has high reliability and is reasonably priced.

1. The product has highly reliable and low-cost MEMS gyroscopes (bias instability <2°/h) and accelerometers (bias instability <24ug).

2. The integrated navigation information provided has roll and pitch accuracy up to 0.1°, post-processing 0.03°, heading 0.1°, post-processing 0.05°, and speed accuracy up to 0.03m/s.

3. Built-in full-band full-system dual-antenna positioning and orientation GNSS module. Single antenna can perform high-precision positioning and speed measurement. Dual antennas can be quickly oriented and can provide high-precision heading and attitude information, which is crucial for applications such as drones and ship navigation.

4. It also has a variety of data interfaces, easy installation, and supports RS422/RS232 and CAN. It is sufficient to meet applications in most cases.

5. It can be widely used in land, aviation, navigation and other fields, including but not limited to autonomous driving, precision agriculture, drones, unmanned surface vehicles, etc.

You can click to view detailed information and then send an email inquiry：  https://www.ericcointernational.com/inertial-navigation-system/mems-inertial-navigation-system/cost-efficient-gnss-aided-mems-ins.html

Email: ericco188@ericcointernational.com 

 

How to use IMU (inertial measurement unit )in pipeline 3D attitude measuring ?

Inertial navigation is an inertial measurement unit (IMU) composed of a gyroscope and an acceleration sensor to measure angular velocity and acceleration information of the carrier.Based on the inertial measurement principle, the pipeline attitude measuring instrument introduced in this paper measures its own three-axis attitude Angle or angular velocity, current acceleration, etc., and analyzes and calculates these attitude quantities, so as to obtain the three-dimensional attitude of the pipeline.

.Let's take a look a measuring instrument based on inertial measurement sensor technology -- pipeline three-dimensional attitude measuring instrument.

As a common instrument for measuring the precise attitude (trajectory) of underground pipelines, the pipeline attitude measuring instrument is a kind of three-dimensional precise attitude measuring instrument based on MEMS inertial measurement unit.This kind of product has internal integration of inertial guided measurement unit, lithium battery, DSP and mass storage unit, which can complete the collection without external auxiliary equipment. It adopts all-metal sealing structure and adaptive shrinkage guide device, which can adapt to the traction and travel of various inner diameter pipelines. It is shockproof and always keeps the measuring unit on the center line of the pipeline.It is mainly applied to the completion measurement of pipe jacking construction in trenchless industries of underground pipelines such as electric power, gas and water.

In the process of use, the pipeline attitude measuring instrument can measure its own three-axis attitude Angle or angular velocity, current acceleration and travel distance through the inertial measurement sensor device. These attitude values are analyzed and calculated by the integral algorithm, so as to obtain the three-dimensional attitude of the pipeline.In complex urban environment, this kind of instrument can accurately measure the three-dimensional data of underground pipeline, which is especially suitable for the measurement and positioning of pipeline completion.

At present, the existing pipe network and well chamber detection technology includes ground detection and underground detection. Ground detection is mainly carried out by radar, infrared ray and ultrasonic methods for line finding and flaw detection.Although the detection is conducted directly on the surface, the detection efficiency is low and the detection accuracy cannot be guaranteed. At the same time, there are certain requirements for the technical level of the detection personnel and the cost of the detection equipment is also relatively expensive.Underground detection technology consists of laser radar, closed-circuit television, downhole robot: although laser radar theory can more accurate detection of pipe network, but to the well chamber test is difficult, expensive equipment at the same time, inconvenience, for operating and testing personnel requirements are high, the result is not intuitive, practicality is not high.

For trenchless pipeline of accurate location information in pipeline construction, the scientific use of underground space, the maximum to avoid the line cut, eliminate the potential accidents, by adopting pipeline three-dimensional attitude measuring instrument, to the trenchless pipeline in pipeline construction to carry on the accurate measurement and positioning, so as to solve the above other detection means can't solve the practical problems.

It should be noted that, in practical application, because the pipeline 3D attitude measuring instrument is based on the principle of accurately measuring its own motion trajectory and obtaining the central coordinate sequence of the measured pipeline, its measurement accuracy is not only limited by the built-in core inertial sensor measurement unit, but also closely related to the structural stability of the instrument during operation.Therefore, keeping the structure of the measuring pipe stable is also one of the prerequisites for accurate data measurement by the 3D attitude measuring instrument .