ERICCO INERTIAL TECHNOLOGY ER-MNS-09 MEMS Directional Module Well-Trajectory Measurement Device Introduction ER-MNS-09 is a MEMS Directional Module Measurement with a special-shaped cylindrical design. It uses a high-precision MEMS gyroscope that can find the north by itself. It determines the geographic true north direction by measuring the earth's rotation component. It does not rely on the geomagnetic field and can work stably in underground mines, metal pipelines or strong electromagnetic environments. It can realize azimuth measurement, real-time output of carrier attitude reference value and attitude holding function. It has strong anti-impact and vibration ability, small size, light weight and low power consumption, and is the most ideal equipment in the fields of mining, geophysical exploration, directional drilling, etc. Features 1. Adopt the latest MEMS gyro technology, cylindrical design, its diameter is reduced to 30mm, length is 120mm, can be easily embedded in the narrow space at the front of the drilling equipment (such as the probe); 2. Adopt the latest three-axis MEMS gyro, three-axis MEMS accelerometer strapdown inertial measurement technology; 3. Full solid-state design, built-in inner platform, excellent impact and vibration resistance, and resistant to harsh environments; 4. With self-seeking north function, not affected by magnetic field; Application 1.Orientation and attitude measurement of advanced mining/drilling equipment; 2.Direction and trajectory control of non-excavation underground hidden engineering pipeline tracking and mapping; 3.Pipeline laying through and across operations in HDD; 4.Provide reference direction for total station and pointing instrument in tunnel construction; 5.Find north positioning in land surveying/land mobile mapping system. Whatsapp/Wechat/Mob:8613992884879 Websit : www.ericcointernational.com E-mail : [email protected]

ERICCO INERTIAL TECHNOLOGY Figure 1. ER-MNS-09 MEMS Directional Module Measurementcoordinate axis definition (front view) Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

ERICCO INERTIAL TECHNOLOGY Wiring Definition Data protocols Upper computer receiving protocol The data update rate is 100Hz, the baud rate is 230400bps, and each frame contains 61 bytes of data, each byte contains 1 start bit (0), 8 data bits, 1 stop bit (1), and no parity. The specific data format is shown in the table below: Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

ERICCO INERTIAL TECHNOLOGY Table 1 Receive data frame format Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

ERICCO INERTIAL TECHNOLOGY Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

ERICCO INERTIAL TECHNOLOGY Determine the definition of the data sent based on byte 4: 2. if control_flag==0xAA: send latitude/longitude altitude Send order: 5-8 bytes: latitude (*1e6 in °) For example, the C code that sends the latitude/longitude instruction (the rest of the bytes are configured arbitrarily), Latitude is "latitude * 1e6", longitude is similar, and altitude scale is 1. Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

ERICCO INERTIAL TECHNOLOGY Introduction to the software Click the COMCFG button to set the serial port, baud rate and frequency. The baud rate is 230400 and the frequency CAL is 100HZ. Click Open to start the test. Click Initial Align to start the north search, the search time is 300s.The result is displayed at PIT;YAW;ROL. If you want to change the latitude and longitude, please change them at Lon0 and Lat0, then click Load, and then click Initial Align to re-navigate. Whatsapp/Wechat/Mob:8613992884879 Websit : www.ericcointernational.com E-mail : [email protected]

ERICCO INERTIAL TECHNOLOGY Whatsapp/Wechat/Mob:8613992884879 Websit : www.ericcointernational.com E-mail : [email protected]