HCM705B
-
High Accuracy Gyro Compass
Set Address: Set the sensor address code input box on the right to enter the desired address code, click
Set Addr button
Save Data: Save the data, click here data can be synchronized Save angle data, the file is stored by
default in the C: ---- COMDATA file
Set Zero: Set relative zero, the sensor current angle is 00.00 degrees
Cancel Zero: Unset the relative zero, to restore the sensor to the factory absolute zero;
Baud Rate: Select the sense baud rate , the factory default is 9600;
Set Baud Rate: Set the sensor baud rate, on the right of the selection box to select corresponding baud
rate then click SetB.R. button;
Auto Output: Switch the sensor to automatically output mode, in the automatic output mode can be filled
with different output frequency in Hz;
Catechism: The sensor switch to answer pattern, such as choosing the answer type, must input “send
command ”( command, please refer to the specification ) on the left of “Send Command”
input box, but also can fill in the transmit frequency in the Send Data, the unit Hz;
Mag. Dec.: Magnetic declination setting, in the right box directly enter the local magnetic declination, click
“Mag.Dec.” Button to confirm .
Calibration: compass calibration forum
Start: Start calibration
Stop: Stop the calibration (Click this button, keep the compass shaking state to avoid incorrect calibration
of the acquisition)
Save: stop calibration and save data. (Specific calibration method please refer to this specification
calibration description)
Note: after install the RION’s debugging software, if can not open, please operate by the following steps
( please appear to the administrator status to operate ):
1
）
Copy these three files mscomm.srg
、
mscomm32.ocx
、
mscomm32.dep from the folder to
C:/Windows/system32 path below
。
2
）
Click “Start” –“run” --regsvr32 mscomm32.ocx
，
You are prompted to install successful dialog
。
Product Communication Protocol
HCM705B is based on TRAX, increase the communication protocol of RION.
MCU read TRAX azimuth, roll, pitch, magnetic field X, magnetic field Y, magnetic field Z, azimuth Status.
Through a serial port output azimuth, roll, pitch and azimuth state data of four parameters.Magnetic field
is used to determine the coefficient of magnetic interference.
一、
Data Frame Format
：（
8 bits of data bits
，
1 stop bit,no check, the default rate 9600
）
Identifier
(1byte)
Data Length
(1byte)
Address code
(1byte)
Command
word
(1byte)
Data
Domains
Checksum
(1byte)
68h
Identifier
：
Fixed 68H
Data length
：
From data length to checksum
（
including checksum
）
length
Address code
：
Accumulating module address
，
Default :00
Date domain will be changed according to the content and length of command word
Check sum
：
Data length
、
Address code
、
Command word and data domain sum,No carry.
