מאפנן מקודד מפענח מפענח מודול פרמטר הוראות תצורת COFDM AT Command

מאפנן מקודד מפענח מפענח מודול פרמטר הוראות תצורת COFDM AT Command

Encoder Modulator Decoder Demodulator Module
COFDM-RF-demodulator-decoder-receiver-H264-Vcan1776RX-H264

Download the Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions below if you need a PDF file.

Update Record:

גִרְסָהתַאֲרִיךתאור
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2016-10-24
2016-11-1
2016-12-26
2017-2-14
2017-2-28
2017-3-27
2017-4-19
2017-5-18
2017-9-12
2018-3-15
2019-6-25
2023-2-24
Initial version
ATDR reply distinguishing module
ATSE, ATGE add audio switch
Add ATSP protocol
Add ATST, ATGT protocol
ATGE command add AESfor status acquisition
Added ATGB protocol
AV and HDMI output control
Support for obtaining the current AV output standard
Added ATSU, ATGUcommands
Added ATOSD, ATSIP, ATGIP commands
Added ATSAD, ATGAD commands

Users may need to modify the configuration parameters of the module during the use of the COFDM modulator and demodulator module. In order to simplify the user’s operation, we design the parameter configuration into a few simple AT commands. The user only needs to use the specified AT command and pass the corresponding parameters to complete the parameter setting of the COFDM module.

Suitable Models

Command Introduction

The AT command for configuring COFDM module parameters starts withATand ends with an underscore “_”. Each AT command has several or no parameters, and each AT command has a return value. For details, please refer to the introduction of the following commands.

Users can configure the parameters of the module through the configuration serial port (רמת TTL, 3.3V) of the COFDM module. For detailed serial port configuration, refer to the figure below. Please use tools such asSerial Port Debugging Assistantto send AT commands to the COFDM module, pay attention to the use of טֶקסט, לדוגמה:

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command 1
Encoder Modulator Decoder Demodulator Module

גommand Classification

The AT commands for configuring COFDM module parameters are mainly divided into the following two categories:

Query CommandsATDR, ATGD, ATGE, ATGI , ATGR, ATGT, ATGB, ATGU, ATGIP
Setting CommandsATSD, ATSG, ATSM, ATSE, ATSI, ATSO, atsr, ATSP, ATST, ATSU,ATOSD, ATSIP

From the perspective of whether to save after power-off, the setting commands can be divided into:

Power-off Saving CommandsATSD, ATSE, ATSI, ATSO, atsr, ATSP, ATST, ATSU, ATSIP
Power-off Not Saving CommandsATSG, ATSM, ATOSD

According to the configuration transmitter or receiver, the classification is as follows:

Sender Configuration CommandsATDR, ATSD, ATGD, ATSG, ATSM, ATSE, ATGE, ATSI, ATGI, ATSO, ATSP, ATST, ATGT, ATSU, ATGU, ATOSD
Receiver Configuration CommandsATDR, atsr, ATGR, ATSP, ATST, ATGT, ATGB, ATSIP, ATGIP

Command Details

Ping Command

פוּרמָטATDR_
פָּרָמֶטֶרלא
להשתמשfor the integrated system to check whether the serial port is connected and identify the connected modules.
Return valueRCB returns thedevice profilestring
SUE1 returnsATDRSUE1 OKstring
SHD1 returnsATDRSHD1 OKstring
הֶעָרָהquery command

Set Device Command

פוּרמָטATSD $(mimo), $(gi), $(חישוב קצב השידור של מערכת שידור אלחוטית COFDM), $ (קבוצת כוכבים), $(תדירות(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_
דוגמא: ATSD0,1,0,0,800000,8000,86.0,86.0_
פָּרָמֶטֶרOne Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable
Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4
Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8;
קבוצת כוכבים: 0 QPSK; 1 QAM16; 2 QAM64;
RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1צעד KHz)
RC900 Carrier center Frequency(kHz) 750000~930000(750930MHz MHz ~, 1צעד KHz)
RCB Channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1צעד KHz)
RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz~8MHz, 1צעד KHz)
Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping
Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping
ערך החזרהכמו:ATSD0,1,0,0,800000,8000,86.0,86.0_
SISO,GI: 1/16, CR:1/2, MOD: QPSK, תדירות:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 בסדר
הערהSet command, save when power off.
Different Bandwidths, מרווחי המשמר, Convolution code rates, Data rate calculation formulas corresponding to constellations
Air interface rate Rate(חישוב קצב השידור של מערכת שידור אלחוטית COFDM) חישוב קצב השידור של מערכת שידור אלחוטית COFDM (רוחב פס(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*חישוב קצב השידור של מערכת שידור אלחוטית COFDM(חישוב קצב השידור של מערכת שידור אלחוטית COFDM) * חישוב קצב השידור של מערכת שידור אלחוטית COFDM * 188/204.
Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratiosC:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png

Set Gain Command

פוּרמָטATSG$( tx1_gain),$( tx1_gain)_
דוגמא: ATSG85.0,85.0_
פָּרָמֶטֶרtx1_gain: משדר 1 לְהַשִׂיג
tx2_gain: משדר 2 לְהַשִׂיג
להשתמשTo dynamically adjust the output power. If the signal SNR/RSSI of the receiver is high, the output power can be reduced through the remote control link. When the SNR/RSSI of the end signal is low, increase the output power (מַשׁדֵר)
ערך החזרה,דוגמא: ATSG85.0,85.0_set gain 85.000000 85.000000 בסדר
הֶעָרָהפקודת הגדרה, power off will not save.

Set Modulation Mode commanד

פוּרמָטATSM$(gi), $(חישוב קצב השידור של מערכת שידור אלחוטית COFDM), $(קבוצת כוכבים)_
דוגמא: ATSM1,1,2_
פָּרָמֶטֶרGard interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1 /4;
Convolution code rate: 0 1/2; 1 2/3; 2 3/4; 3 5/6; 4 7/8;
קבוצת כוכבים: 0 QPSK; 1 QAM16; 2 QAM64
להשתמשDynamically adjust the air interface rate, the air interface rate can be increased when the distance is short, and the air interface rate can be reduced when the distance is long (מַשׁדֵר)
ערך החזרהדוגמא:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, בסדר
הֶעָרָהפקודת הגדרה, power off will not save.

Get Device Status Command

פוּרמָטATGD_
פָּרָמֶטֶרלא
להשתמשquery the current number of transmit antennas, משמר מרווח, convolution code rate, number of constellations, transmit frequency, רוחב פס, gain parameters (מַשׁדֵר)
ערך החזרהדוגמא: ATGD_
SISO, GI:1 /16, CR: 1/2, MOD: QPSK, תדירות: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 בסדר
הֶעָרָהquery command

Set Encoder Command

פוּרמָטATSE$(llc),$(rt),$(bitrate) ,$(gop),$(אודיו)_
דוגמא: ATSE0,0,0.0,0,0_
פָּרָמֶטֶר1. Enhanced data reliability option llc: 0 disable; 1 enable (requires the receiving end to enable this option at the same time, use in pairs, because more redundant data is added to enhance reliability, the video bit rate of the transmitting end should be set when this option is turned off half of)
2. Real-time priority/quality priority rt: 0 image quality priority; 1 real-time priority;
3. קצב סיביות: 0 let system decide; >0 specify bitrate(float)
4. I frame interval GOP: 0 let system decide; >0 specify GOP
5. Audio encoding option audio: 0 disable; 1 enable
להשתמשUsed to set encoding parameters (משדר)
ערך החזרהדוגמא:ATSE0, 0,0.0,0,0_
מצב:0,RT:0,bitrate: 0.0Mbps,gop:0,אודיו:0,בסדר
הֶעָרָהפקודת הגדרה, save when power is off.

Get Encoder Command

פוּרמָטATGE_
פָּרָמֶטֶרלא
להשתמשquerying encoding parameters (sending end)
ערך החזרהדוגמא:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,אודיו:0,aes:0, בסדר
הֶעָרָהQuery command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

פוּרמָטATGI_
פָּרָמֶטֶרלא
להשתמשquery the current camera input parameters (מַשׁדֵר)
ערך החזרהדוגמא:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,בסדר
הֶעָרָהquery command

Set Input Command

פוּרמָטATSI$(input_size),$(input_rate)_
דוגמא: ATSI1080,25_
פָּרָמֶטֶר1. Input resolution input_size: 0 תן למערכת לזהות; >0 specify input size
2. Input frame rate input_rate: 0 תן למערכת לזהות; > 0 specify input fps
להשתמשTo specify the input resolution and frame rate to meet some special signal sources, or some special application needs (מַשׁדֵר)
ערך החזרהדוגמא: ATSI1080,25_
Input_size:1080p,input_rate: 25fps, בסדר
הערותAfter the user specifies the input resolution and frame rate through this command, the system will no longer detect the signal source (use with caution). The user can restore the default through the following command: ATSI0,0_Set the command and save it after power-off.

Set Output Command

פוּרמָטATSO$(output_size),$(output_rate)_
דוגמא: ATSO720,30_
פָּרָמֶטֶר1. משדר: encoding output resolution output_size: 0 equal to input_size; >0 specify output size
2. מַקְלֵט: HDMI output resolution (720, 1080)
3. משדר: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps)
4. מַקְלֵט: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
להשתמש1. משדר: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction
2. מַקְלֵט: used to configure the resolution and frame rate of HDMI output
ערך החזרהדוגמא: ATSO720,30_
output_size: 720p, output_rate: 30fps, בסדר
הערות1. For HDMI input only, this command is invalid for AV input
2. Output_size <= input_size; output_rate<=input_rate
3. Set the command and save it after the power is off.

הגדר פקודת מקורות קלט (להחליף HDMI / קלט CVBS)

פוּרמָטATSU$(vin),$(עין)_
דוגמא: ATSU0,1_
פָּרָמֶטֶר1. בחירת קלט וידאו VIN: 0 תן למערכת לזהות; 1 לאלץ קלט CVBS; 2 לאלץ קלט hdmi/SDI
2. בחירת קלט שמע AIN: 0 תן למערכת לזהות; 1 לכפות קלט אנלוגי
להשתמשמשמש כדי לעמוד בדרישות יישום ספציפיות (דוגמא: וידאו קלט HDMI/SDI, אודיו כניסת MIC)
ערך החזרהדוגמא: ATSU0,1_
ATSU0,1 בסדר
הֶעָרָהפקודת הגדרה, חיסכון בכיבוי.

Get User Command

פוּרמָטATGU _
דוגמא: ATGU_
פָּרָמֶטֶרלא
להשתמשTo query user-specific configuration
ערך החזרהדוגמא: ATGU_
ATGU0,1 OK
הֶעָרָהquery command
return parameter description please refer to the ATSU command

Set Receiver Command

פוּרמָטatsr $(תדירות), $(bw ), $(llc), $(cvbs)_
דוגמא: ATSR320000,6000,0,0_
פָּרָמֶטֶר1. DR2C carrier frequency freq(KHz) 200000~860000(200860MHz MHz ~, 1צעד KHz)
2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1צעד KHz)
3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1צעד KHz)
4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz~8MHz, 1צעד KHz)
5. Enhanced data reliability option llc: 0 disable; 1 enable (it is required that the transmitter should also enable this option at the same time, and use it in pairs. Since more redundant data is added to enhance reliability, the video bit rate of the transmitter should be set to when this option is turned off half of)
6. AV output system cvbs: 0 pal; 1 ntsc
להשתמשTo set the receiver parameter
ערך החזרהexample: ATSR320000,6000,0,0_
ATSR320000,6000,0,0 OK
הֶעָרָהפקודת הגדרה, save when power is off.

Get Receiver Command

פוּרמָטATGR_
פָּרָמֶטֶרלא
ATGR_the receiving end parameter
ערך החזרהדוגמא: ATGR_
ATGR320000,6000,0,aes:0,cvbs:0 בסדר
הֶעָרָה1. Query command
2. Aes parameter indicates the current encryption status: 0 disable;1 enable
3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc

Get Bit Error Rate Command

פוּרמָטATGB_
פָּרָמֶטֶרלא
להשתמשquerying the bit error rate and signal strength of the dual antennas at the receiving end
ערך החזרהדוגמא: ATGB_
ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 בסדר
הערות1. Query commands
2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% ל 100.0%
3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 ל 100
4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

פוּרמָטATSP$(סיסמה), $(סיסמה)_
דוגמא: ATSP123456, 123456_
פָּרָמֶטֶרAES key password: 6-digit password (ASCII)
AES key password: 6-digit password (ASCII) (repeat it for confirmation)
להשתמשUsed to set the AES key of the transceiver (משדר ומקלט)
ערך החזרהדוגמא: ATSP123456_
ATSP123456 OK
הֶעָרָה1. When the password is all 0, AES encryption is turned off.
2. Set the command and save it after powering it off.

Set Data Transfer Command

פוּרמָטATST$(קצב שידור), $( parity)_
דוגמא: ATST115200,0_
פָּרָמֶטֶר1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200
2. Check Code: 0: אף אחד; 1: Odd; 2: Even
להשתמשUsed to set the baud rate and parity bit of the serial port for data transparent transmission
ערך החזרהדוגמא: ATST115200,0_
ATST115200,0 OK
הערותSet command

Get Data Transfer Command

פוּרמָטATGT_
פָּרָמֶטֶרלא
להשתמשUsed to query the baud rate and check code
ערך החזרהדוגמא: ATGT_
ATGT115200,0 OK
הערותQuery command

Set IP Address Command

פוּרמָטATSIP$(ip), $(ip)_
דוגמא: ATSIP192.168.1.215,192.168.1.215_
פרמטריםLocal IP address
Local IP address (repeat to confirm)
להשתמשUsed to set the receiver IP address
ערך החזרהדוגמא: ATSIP_192.168.1 .215,192.168.1.215_
ATSIP192.168.1.215 OK
הערות1. After setting the IP address, the receiving end needs to be restarted to take effect.
2. Set the command and save it after powering it off.

Get IP Address Command

פוּרמָטATGIP_
דוגמא: ATGIP_
פָּרָמֶטֶרלא
להשתמשto query the current IP address of the receiving end
Return valueדוגמא: ATGIP_
ATGIP192.168.0.215 OK
הֶעָרָהquery command

OSD Overlay Protocol

פוּרמָטATOSD$(idx), $(איקס), $(y), $(str)_
דוגמא:ATOSD0,40,20,height: 100m_
פָּרָמֶטֶר1. IDX index: 0~7 (supports OSD overlay for 8 areas)
2. X-coordinate: 0~1919
3. Y coordinate: 0~1079
4. str: the string to be displayed at the corresponding coordinates (the space symbol is used to clear the display)
להשתמשon the video screen.OSD information
Return valueלא
הערות1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 פיקסלים, and the system will correct the coordinates according to the actual display situation.
2. The ‘_character cannot be contained in the str parameter

Set Gain To Adjust

פוּרמָטATSAD$(תדירות),$(adjust) _ דוגמא:ATSAD700000,2.5_
פָּרָמֶטֶרwireless central working frequency:   Freq(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) Adjust the value(dB):       ATSD cmd will subtract this value to set the wireless gain
פוּנקצִיָהSpecify and adjust the value for the wireless gain setting using by ATSD cmd
מָשׁוֹבדוגמא: ATSAD700000,2.5_ freq:700000,adjust:2.50 בסדר
הערותSetting command is still valid when stopping power or resetting.

Get Gain To Adjust

פוּרמָטATGAD[$(תדירות)]_ דוגמא:ATGAD700000_
פָּרָמֶטֶרwireless central working frequency:   Freq(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) When no parameter provides, it will list all the freq that have adjusted value.
פוּנקצִיָהInquiry adjust the value for wireless gain setting using ATSD cmd
מָשׁוֹבדוגמא: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 בסדר
הערותInquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

שאלות נפוצות

1. How can I return to the No Password setting with 000000 indications after the change?

Reset the password to 000000 (one must not be missing) through the Parameter Configuration Panel Board.
or set it through ה ATSP_command

2. I see that Gain is the output power of the transmitter. Please tell me the range of settings of this parameter. All setting level (לְהַשִׂיג) good for linear output operation? Or do you suggest some limited range for better linear operation?

The Gain of the COFDM configuration is the internal Gain, not the actual output power of the transmitter. The internal gain range is 0~89.75dB and the linear output:
1. At around 300~500MHz, the Gain is set to 89.75, and the actual output power of the transmitter module is about -5dBm.
2. At around 1000~1500MHz, the Gain is set to 89.75, and the actual output power of the transmitter module is about -6dBm to -10dBm.

3. I tried to setB bandwidth (kHz) and E bit rate (Mbps). When I set E, the new value does not apply. So. the E setting is only for monitoring of available bitrate? if I wish to change the E (קצב סיביות) I have to change only B (רוחב פס)? Am I right?

It is not recommended to modify the video bit rate ‘Edirectly, because if the output video bit rate is greater than the wireless air interface rate, the system will not work normally.
כברירת מחדל, the internal video bit rate ‘Ewill be set to 0 for automatic. Customers only need to modify ‘Bto modify the wireless parameters, and the video bit rate will automatically adapt.
You can also adjust the wireless air interface rate by modifying GI and CR.

For more details on the Encoder Modulator Decoder Demodulator Module, please send an inquiry to us.

COFDM Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 הזרמת FHD RF

107625

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