Encoder Modulator Decoder Demodulator Module Parameter Οδηγίες διαμόρφωσης COFDM AT Command

Encoder Modulator Decoder Demodulator Module Parameter Οδηγίες διαμόρφωσης 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:

ΕκδοχήΗμερομηνίαΠεριγραφή
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 (επίπεδο 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 κείμενο, για παράδειγμα:

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

ντοommand 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

ΜορφήATDR_
παράμετροςΟχι
Χρήσηfor the integrated system to check whether the serial port is connected and identify the connected modules.
Επιστρεφόμενη αξίαRCB returns thedevice profilestring
SUE1 returnsATDRSUE1 OKstring
SHD1 returnsATDRSHD1 OKstring
Παρατήρησηεντολή ερωτήματος

Set Device Command

ΜορφήATSD $(mimo), $(gi), $(Κεντρικό σημείο συχνότητας λειτουργίας), $ (constellation), $(συχν(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_
Παράδειγμα: ATSD0,1,0,0,800000,8000,86.0,86.0_
παράμετροςOne Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable
Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4
Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8;
σχηματισμού: 0 QPSK; 1 QAM16; 2 QAM64;
RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1Βήμα KHz)
RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930Mhz, 1Βήμα KHz)
RCB Channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1Βήμα KHz)
RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz~8MHz, 1Βήμα KHz)
Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping
Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping
Return Valueόπως:ATSD0,1,0,0,800000,8000,86.0,86.0_
SISO,GI: 1/16, CR:1/2, MOD: QPSK, συχν:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 Εντάξει
ΣημείωσηSet command, save when power off.
Different Bandwidths, διαστήματα Φρουράς, Convolution code rates, Data rate calculation formulas corresponding to constellations
Air interface rate Rate(Κεντρικό σημείο συχνότητας λειτουργίας) Κεντρικό σημείο συχνότητας λειτουργίας (Εύρος ζώνης(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*Κεντρικό σημείο συχνότητας λειτουργίας(Κεντρικό σημείο συχνότητας λειτουργίας) * Κεντρικό σημείο συχνότητας λειτουργίας * 188/204.
Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratiosC:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png

μικρόet Gain Command

ΜορφήATSG$( tx1_gain),$( tx1_gain)_
Παράδειγμα: ATSG85.0,85.0_
παράμετροςtx1_gain: Πομπός 1 κέρδος
tx2_gain: Πομπός 2 κέρδος
ΧρήσηTo 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 (πομπός)
Return Value,Παράδειγμα: ATSG85.0,85.0_set gain 85.000000 85.000000 Εντάξει
Παρατήρησηsetting command, power off will not save.

Set Modulation Mode commanρε

ΜορφήATSM$(gi), $(Κεντρικό σημείο συχνότητας λειτουργίας), $(constellation)_
Παράδειγμα: ATSM1,1,2_
παράμετροςGard 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;
σχηματισμού: 0 QPSK; 1 QAM16; 2 QAM64
ΧρήσηDynamically 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 (πομπός)
Return ValueΠαράδειγμα:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, Εντάξει
Παρατήρησηsetting command, power off will not save.

σολet Device Status Command

ΜορφήATGD_
παράμετροςΟχι
Χρήσηquery the current number of transmit antennas, διάστημα φύλαξης, convolution code rate, number of constellations, transmit frequency, εύρος ζώνης, gain parameters (πομπός)
Return ValueΠαράδειγμα: ATGD_
SISO, GI:1 /16, CR: 1/2, MOD: QPSK, συχν: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 Εντάξει
Παρατήρησηεντολή ερωτήματος

Set Encoder Command

ΜορφήATSE$(llc),$(rt),$(bitrate) ,$(gop),$(ήχου)_
Παράδειγμα: ATSE0,0,0.0,0,0_
παράμετρος1. 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. Νιτρικά: 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
ΧρήσηUsed to set encoding parameters (Πομπός)
Return ValueΠαράδειγμα:ATSE0, 0,0.0,0,0_
ΤΡΟΠΟΣ:0,RT:0,bitrate: 0.0Mbps,gop:0,ήχου:0,Εντάξει
Παρατήρησηsetting command, save when power is off.

Get Encoder Command

ΜορφήATGE_
παράμετροςΟχι
Χρήσηquerying encoding parameters (sending end)
Return ValueΠαράδειγμα:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,ήχου:0,aes:0, Εντάξει
ΠαρατήρησηQuery command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

ΜορφήATGI_
παράμετροςΟχι
Χρήσηquery the current camera input parameters (πομπός)
Return ValueΠαράδειγμα:ATGI_input_size: 1080Π, input_rate: 60fps, sensor_type: HDMI,Εντάξει
Παρατήρησηεντολή ερωτήματος

Set Input Command

ΜορφήATSI$(input_size),$(input_rate)_
Παράδειγμα: ATSI1080,25_
παράμετρος1. 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
ΧρήσηTo specify the input resolution and frame rate to meet some special signal sources, or some special application needs (πομπός)
Return ValueΠαράδειγμα: ATSI1080,25_
Input_size:1080Π,input_rate: 25fps, Εντάξει
ΠαρατηρήσειςAfter 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

ΜορφήATSO$(output_size),$(output_rate)_
Παράδειγμα: ATSO720,30_
παράμετρος1. Πομπός: encoding output resolution output_size: 0 equal to input_size; >0 specify output size
2. Δέκτης: HDMI output resolution (720, 1080)
3. Πομπός: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps)
4. Δέκτης: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
Χρήση1. Πομπός: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction
2. Δέκτης: used to configure the resolution and frame rate of HDMI output
Return ValueΠαράδειγμα: ATSO720,30_
output_size: 720Π, output_rate: 30fps, Εντάξει
Παρατηρήσεις1. 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 / εισόδου CVBS)

ΜορφήATSU$(vin),$(ain)_
Παράδειγμα: ATSU0,1 _
παράμετρος1. 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
ΧρήσηUsed to meet specific application requirements (Παράδειγμα: HDMI/SDI input video, MIC input audio)
Return ValueΠαράδειγμα: ATSU0,1_
ATSU0,1 OK
Παρατήρησηsetting command, power-off save.

Get User Command

ΜορφήATGU _
Παράδειγμα: ATGU_
παράμετροςΟχι
ΧρήσηTo query user-specific configuration
Return ValueΠαράδειγμα: ATGU_
ATGU0,1 OK
Παρατήρησηεντολή ερωτήματος
return parameter description please refer to the ATSU command

Set Receiver Command

ΜορφήATSR $(συχν), $(bw ), $(llc), $(cvbs)_
Παράδειγμα: ATSR320000,6000,0,0_
παράμετρος1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1Βήμα KHz)
2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1Βήμα KHz)
3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1Βήμα KHz)
4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz~8MHz, 1Βήμα 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
ΧρήσηTo set the receiver parameter
Return Valueexample: ATSR320000,6000,0,0_
ATSR320000,6000,0,0 OK
Παρατήρησηsetting command, save when power is off.

Get Receiver Command

ΜορφήATGR_
παράμετροςΟχι
ATGR_the receiving end parameter
Return ValueΠαράδειγμα: ATGR_
ATGR320000,6000,0,aes:0,cvbs:0 Εντάξει
Παρατήρηση1. 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

ΜορφήATGB_
παράμετροςΟχι
Χρήσηquerying the bit error rate and signal strength of the dual antennas at the receiving end
Return ValueΠαράδειγμα: ATGB_
ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 Εντάξει
Παρατηρήσεις1. Query commands
2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% προς την 100.0%
3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 προς την 100
4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

ΜορφήATSP$(password), $(password)_
Παράδειγμα: ATSP123456, 123456_
παράμετροςAES key password: 6-digit password (ASCII)
AES key password: 6-digit password (ASCII) (repeat it for confirmation)
ΧρήσηUsed to set the AES key of the transceiver (πομπός και δέκτης)
Return ValueΠαράδειγμα: ATSP123456_
ATSP123456 OK
Παρατήρηση1. 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

ΜορφήATST$(ρυθμός baud), $( parity)_
Παράδειγμα: ATST115200,0_
παράμετρος1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200
2. Check Code: 0: Κανένας; 1: Odd; 2: Even
ΧρήσηUsed to set the baud rate and parity bit of the serial port for data transparent transmission
Return ValueΠαράδειγμα: ATST115200,0_
ATST115200,0 OK
ΠαρατηρήσειςSet command

Get Data Transfer Command

ΜορφήATGT_
παράμετροςΟχι
ΧρήσηUsed to query the baud rate and check code
Return ValueΠαράδειγμα: ATGT_
ATGT115200,0 OK
ΠαρατηρήσειςQuery command

Set IP Address Command

ΜορφήATSIP$(ip), $(ip)_
Παράδειγμα: ATSIP192.168.1.215,192.168.1.215_
ΠαράμετροιLocal IP address
Local IP address (repeat to confirm)
ΧρήσηUsed to set the receiver IP address
Return ValueΠαράδειγμα: ATSIP_192.168.1 .215,192.168.1.215_
ATSIP192.168.1.215 OK
Παρατηρήσεις1. 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

ΜορφήATGIP_
Παράδειγμα: ATGIP_
παράμετροςΟχι
Χρήσηγια να ρωτήσετε την τρέχουσα διεύθυνση IP του τέλους λήψης
Επιστρεφόμενη αξίαΠαράδειγμα: ATGIP_
ATGIP192.168.0.215 ΟΚ
Παρατήρησηεντολή ερωτήματος

OSD Overlay Protocol

ΜορφήATOSD$(idx), $(Χ), $(y), $(str)_
Παράδειγμα:ATOSD0,40,20,height: 100m_
παράμετρος1. 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)
Χρήσηon the video screen.OSD information
Επιστρεφόμενη αξίαΟχι
Παρατηρήσεις1. 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

ΜορφήATSAD$(συχν),$(adjust) _ Παράδειγμα:ATSAD700000,2.5_
παράμετροςwireless 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
ΛειτουργίαSpecify and adjust the value for the wireless gain setting using by ATSD cmd
ΑνατροφοδότησηΠαράδειγμα: ATSAD700000,2.5_ freq:700000,adjust:2.50 Εντάξει
ΣχόλιαSetting command is still valid when stopping power or resetting.

Get Gain To Adjust

ΜορφήATGAD[$(συχν)]_ Παράδειγμα:ATGAD700000_
παράμετροςwireless 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.
ΛειτουργίαInquiry adjust the value for wireless gain setting using ATSD cmd
ΑνατροφοδότησηΠαράδειγμα: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 Εντάξει
ΣχόλιαInquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

Συχνές Ερωτήσεις

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 ο 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 (Κέρδος) 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 (Νιτρικά) I have to change only B (εύρος ζώνης)? 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.
Από προεπιλογή, 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 Αποκωδικοποιητής HDMI CVBS AV Είσοδος AES 256 Ροή FHD RF

107625

Αφήστε μια απάντηση

Η διεύθυνση email σας δεν θα δημοσιευθεί. τα απαιτούμενα πεδία είναι επισημασμένα *

Ανακαλύψτε περισσότερα από iVcan.com

Εγγραφείτε τώρα για να συνεχίσετε να διαβάζετε και να αποκτήσετε πρόσβαση στο πλήρες αρχείο.

Συνέχισε να διαβάζεις

Χρειάζεστε βοήθεια στο WhatsApp?