Kodlayıcı Modulator Dekoder Demodulyator Modulu Parametr Konfiqurasiya Təlimatları COFDM AT Command

Kodlayıcı Modulator Dekoder Demodulyator Modulu Parametr Konfiqurasiya Təlimatları COFDM AT Command

Encoder Modulator Decoder Demodulator Module
COFDM-RF-demodulyator-dekoder-qəbuledici-H264-Vcan1776RX-H264

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

Update Record:

VersiyaTarixtəsvir
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 (TTL səviyyədə, 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 mətn, misal üçün:

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

Command 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

formatATDR_
parametrYox
istifadəfor the integrated system to check whether the serial port is connected and identify the connected modules.
Dəyəri qaytarınRCB returns thedevice profilestring
SUE1 returnsATDRSUE1 OKstring
SHD1 returnsATDRSHD1 OKstring
qeydsorğu əmri

Set Device Command

formatATSD $(mimo), $(gi), $(maksimum ötürmə gücü fərqlidir), $ (constellation), $(tezlik(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_
Misal: ATSD0,1,0,0,800000,8000,86.0,86.0_
parametrOne Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable
Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4
Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8;
bürc: 0 QPSK; 1 QAM16; 2 QAM64;
RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1KHz addım)
RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930MHz, 1KHz addım)
RCB Channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8MHz, 1KHz addım)
RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz ~ 8MHz, 1KHz addım)
Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping
Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping
Return Valuekimi:ATSD0,1,0,0,800000,8000,86.0,86.0_
SISO,GI: 1/16, CR:1/2, MOD: QPSK, tezlik:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 tamam
QeydKomanda təyin edin, enerji söndürüldükdə qənaət edin.
Different Bandwidths, Guard intervalları, Convolution code rates, Data rate calculation formulas corresponding to constellations
Air interface rate Rate(maksimum ötürmə gücü fərqlidir) maksimum ötürmə gücü fərqlidir (Bant(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*maksimum ötürmə gücü fərqlidir(maksimum ötürmə gücü fərqlidir) * maksimum ötürmə gücü fərqlidir * 188/204.
Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratiosC:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png

Set Gain Command

formatATSG$( tx1_gain),$( tx1_gain)_
Misal: ATSG85.0,85.0_
parametrtx1_gain: ötürücü 1 qazanc
tx2_gain: ötürücü 2 qazanc
istifadəTo 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 (ötürücü)
Return Value,Misal: ATSG85.0,85.0_set gain 85.000000 85.000000 tamam
qeydsetting command, power off will not save.

Set Modulation Mode command

formatATSM$(gi), $(maksimum ötürmə gücü fərqlidir), $(constellation)_
Misal: ATSM1,1,2_
parametrGard 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;
bürc: 0 QPSK; 1 QAM16; 2 QAM64
istifadəDynamically 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 (ötürücü)
Return ValueMisal:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, tamam
qeydsetting command, power off will not save.

Get Device Status Command

formatATGD_
parametrYox
istifadəquery the current number of transmit antennas, guard interval, convolution code rate, number of constellations, transmit frequency, bant, gain parameters (ötürücü)
Return ValueMisal: ATGD_
SISO, GI:1 /16, CR: 1/2, MOD: QPSK, tezlik: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 tamam
qeydsorğu əmri

Set Encoder Command

formatATSE$(llc),$(rt),$(bitrate) ,$(gop),$(audio)_
Misal: ATSE0,0,0.0,0,0_
parametr1. 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. Bitrate: 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
istifadəUsed to set encoding parameters (ötürücü)
Return ValueMisal:ATSE0, 0,0.0,0,0_
MODE:0,RT:0,bitrate: 0.0Mbps,gop:0,audio:0,tamam
qeydsetting command, save when power is off.

Get Encoder Command

formatATGE_
parametrYox
istifadəquerying encoding parameters (sending end)
Return ValueMisal:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,audio:0,aes:0, tamam
qeydQuery command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

formatATGI_
parametrYox
istifadəquery the current camera input parameters (ötürücü)
Return ValueMisal:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,tamam
qeydsorğu əmri

Set Input Command

formatATSI$(input_size),$(input_rate)_
Misal: ATSI1080,25_
parametr1. Input resolution input_size: 0 let the system detect; >0 specify input size
2. Input frame rate input_rate: 0 let the system detect; > 0 specify input fps
istifadəTo specify the input resolution and frame rate to meet some special signal sources, or some special application needs (ötürücü)
Return ValueMisal: ATSI1080,25_
Input_size:1080p,input_rate: 25fps, tamam
QeydAfter 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

formatATSO$(output_size),$(output_rate)_
Misal: ATSO720,30_
parametr1. ötürücü: encoding output resolution output_size: 0 equal to input_size; >0 specify output size
2. qəbuledici: HDMI output resolution (720, 1080)
3. ötürücü: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps)
4. qəbuledici: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
istifadə1. ötürücü: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction
2. qəbuledici: used to configure the resolution and frame rate of HDMI output
Return ValueMisal: ATSO720,30_
output_size: 720p, output_rate: 30fps, tamam
Qeyd1. 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.

Set Input Sources Command (switch HDMI / CVBS giriş)

formatATSU$(vin),$(ain)_
Misal: ATSU0,1 _
parametr1. Video input selection VIN: 0 let the system detect; 1 force CVBS input; 2 force hdmi/SDI input
2. Audio input selection AIN: 0 let the system detect; 1 force analog input
istifadəUsed to meet specific application requirements (Misal: HDMI/SDI input video, MIC input audio)
Return ValueMisal: ATSU0,1_
ATSU0,1 OK
qeydsetting command, power-off save.

Get User Command

formatATGU _
Misal: ATGU_
parametrYox
istifadəTo query user-specific configuration
Return ValueMisal: ATGU_
ATGU0,1 OK
qeydsorğu əmri
return parameter description please refer to the ATSU command

Set Receiver Command

formatATSR $(tezlik), $(bw ), $(llc), $(cvbs)_
Misal: ATSR320000,6000,0,0_
parametr1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1KHz addım)
2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1KHz addım)
3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8MHz, 1KHz addım)
4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz ~ 8MHz, 1KHz addım)
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
istifadəTo set the receiver parameter
Return Valueexample: ATSR320000,6000,0,0_
ATSR320000,6000,0,0 OK
qeydsetting command, save when power is off.

Get Receiver Command

formatATGR_
parametrYox
ATGR_the receiving end parameter
Return ValueMisal: ATGR_
ATGR320000,6000,0,aes:0,cvbs:0 tamam
qeyd1. 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

formatATGB_
parametrYox
istifadəquerying the bit error rate and signal strength of the dual antennas at the receiving end
Return ValueMisal: ATGB_
ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 tamam
Qeyd1. Query commands
2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% qədər 100.0%
3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 qədər 100
4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

formatATSP$(parol), $(parol)_
Misal: ATSP123456, 123456_
parametrAES açar parolu: 6-digit password (ASCII)
AES açar parolu: 6-digit password (ASCII) (repeat it for confirmation)
istifadəQəbuledicinin AES düyməsini təyin etmək üçün istifadə olunur (ötürücü və qəbuledici)
Return ValueMisal: ATSP123456_
ATSP123456 OK
qeyd1. Şifrə hamısı olduqda 0, AES encryption is turned off.
2. Set the command and save it after powering it off.

Set Data Transfer Command

formatATST$(baud dərəcəsi), $( parity)_
Misal: ATST115200,0_
parametr1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200
2. Check Code: 0: Yoxdur; 1: Odd; 2: Even
istifadəUsed to set the baud rate and parity bit of the serial port for data transparent transmission
Return ValueMisal: ATST115200,0_
ATST115200,0 OK
QeydKomanda təyin edin

Get Data Transfer Command

formatATGT_
parametrYox
istifadəUsed to query the baud rate and check code
Return ValueMisal: ATGT_
ATGT115200,0 OK
QeydQuery command

Set IP Address Command

formatATSIP$(ip), $(ip)_
Misal: ATSIP192.168.1.215,192.168.1.215_
ParametrlərLocal IP address
Local IP address (təsdiq etmək üçün təkrarlayın)
istifadəUsed to set the receiver IP address
Return ValueMisal: ATSIP_192.168.1 .215,192.168.1.215_
ATSIP192.168.1.215 OK
Qeyd1. 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

formatATGIP_
Misal: ATGIP_
parametrYox
istifadəqəbul edən tərəfin cari IP ünvanını sorğulamaq üçün
Dəyəri qaytarınMisal: ATGIP_
ATGIP192.168.0.215 OK
qeydsorğu əmri

OSD Overlay Protocol

formatATOSD$(idx), $(x), $(y), $(str)_
Misal:ATOSD0,40,20,height: 100m_
parametr1. 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)
istifadəon the video screen.OSD information
Dəyəri qaytarınYox
Qeyd1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 pixels, 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

formatATSAD$(tezlik),$(adjust) _ Misal:ATSAD700000,2.5_
parametrwireless central working frequency:   Tezlik(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) Adjust the value(dB):       ATSD cmd will subtract this value to set the wireless gain
FunctionSpecify and adjust the value for the wireless gain setting using by ATSD cmd
ƏlaqəMisal: ATSAD700000,2.5_ freq:700000,adjust:2.50 tamam
ŞərhlərSetting command is still valid when stopping power or resetting.

Get Gain To Adjust

formatATGAD[$(tezlik)]_ Misal:ATGAD700000_
parametrwireless central working frequency:   Tezlik(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) When no parameter provides, it will list all the freq that have adjusted value.
FunctionInquiry adjust the value for wireless gain setting using ATSD cmd
ƏlaqəMisal: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 tamam
ŞərhlərInquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

FAQ

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 the 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 (mənfəət) 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. Belə ki. the E setting is only for monitoring of available bitrate? if I wish to change the E (Bitrate) I have to change only B (bant)? 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.
By default, 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 Modul Kodlayıcı Dekoder HDMI CVBS AV Girişi AES 256 FHD RF axını

107625

Bir cavab buraxın

E-poçt ünvanından dərc olunmayacaq. Lazım alanlar qeyd olunur *

-dən daha çox kəşf edin iVcan.com

Oxumağa davam etmək və tam arxivə giriş əldə etmək üçün indi abunə olun.

oxumağa davam

WhatsApp-da Yardım lazımdır?