Кодер модуляторы Декодер демодулятор модулі Параметр конфигурациялау нұсқаулары COFDM AT пәрмені
Download the Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions below if you need a PDF file.
Update Record:
нұсқа | дата | сипаттамасы |
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 with “AT” and 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 деңгейі, 3.3V) of the COFDM module. For detailed serial port configuration, refer to the figure below. Please use tools such as “Serial Port Debugging Assistant” to send AT commands to the COFDM module, pay attention to the use of мәтін, Мысалға:
Command Classification
The AT commands for configuring COFDM module parameters are mainly divided into the following two categories:
Query Commands | ATDR, ATGD, ATGE, ATGI , ATGR, ATGT, ATGB, ATGU, ATGIP |
Setting Commands | ATSD, 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 Commands | ATSD, ATSE, ATSI, ATSO, ATSR, ATSP, ATST, ATSU, ATSIP |
Power-off Not Saving Commands | ATSG, ATSM, ATOSD |
According to the configuration transmitter or receiver, the classification is as follows:
Sender Configuration Commands | ATDR, ATSD, ATGD, ATSG, ATSM, ATSE, ATGE, ATSI, ATGI, ATSO, ATSP, ATST, ATGT, ATSU, ATGU, ATOSD |
Receiver Configuration Commands | ATDR, ATSR, ATGR, ATSP, ATST, ATGT, ATGB, ATSIP, ATGIP |
Command Details
Ping Command
формат | ATDR_ |
параметр | жоқ |
пайдалану | for the integrated system to check whether the serial port is connected and identify the connected modules. |
Қайтарылатын мән | RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string |
Ескерту | сұрау командасы |
Set Device Command
формат | ATSD $(mimo), $(gi), $(COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу), $ (constellation), $(жиілігі(кГц)), $(bw(кГц)), $(tx1_gain), $(tx2_gain)_ Мысал: ATSD0,1,0,0,800000,8000,86.0,86.0_ |
параметр | One Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4 Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8; Constellation: 0 QPSK; 1 QAM16; 2 QAM64; RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1КГц қадамы) RC900 Carrier center Frequency(kHz) 750000~930000(750МГц ~ 930MHz, 1КГц қадамы) RCB Channel bandwidth bw(кГц) 2000~8000(2МГц~8МГц, 1КГц қадамы) RCB Channel bandwidth bw(кГц) 2000~8000 (2МГц~8МГц, 1КГц қадамы) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping |
Return Value | сияқты:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,GI: 1/16, CR:1/2, MOD: QPSK, жиілігі:800000кГц,bw:8000кГц,tx1_gain:86.000000 tx2_gain:86.000000 ЖАРАЙДЫ МА |
Ескерту | Set command, save when power off. Different Bandwidths, Guard аралықтары, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу) COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу (Өткізу жолағы(МГц) * 8.0/7.0) / (1+GI) * 1512/2048*COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу(COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу) * COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу * 188/204. Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratios |
Set Gain Command
формат | ATSG$( tx1_gain),$( tx1_gain)_ Мысал: ATSG85.0,85.0_ |
параметр | tx1_gain: таратқыш 1 пайда tx2_gain: таратқыш 2 пайда |
пайдалану | To dynamically adjust the output power. If the signal SNR/RSSI of the receiver is high, the output power can be reduced through the remote control link. When the SNR/RSSI of the end signal is low, increase the output power (таратқыш) |
Return Value, | Мысал: ATSG85.0,85.0_set gain 85.000000 85.000000 ЖАРАЙДЫ МА |
Ескерту | setting command, power off will not save. |
Set Modulation Mode commanг
формат | ATSM$(gi), $(COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу), $(constellation)_ Мысал: ATSM1,1,2_ |
параметр | Gard interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1 /4; Convolution code rate: 0 1/2; 1 2/3; 2 3/4; 3 5/6; 4 7/8; Constellation: 0 QPSK; 1 QAM16; 2 QAM64 |
пайдалану | Dynamically adjust the air interface rate, the air interface rate can be increased when the distance is short, and the air interface rate can be reduced when the distance is long (таратқыш) |
Return Value | Мысал:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, ЖАРАЙДЫ МА |
Ескерту | setting command, power off will not save. |
Get Device Status Command
формат | ATGD_ |
параметр | жоқ |
пайдалану | query the current number of transmit antennas, күзетші аралығы, convolution code rate, number of constellations, transmit frequency, өткізу қабілеті, gain parameters (таратқыш) |
Return Value | Мысал: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, жиілігі: 800000кГц, bw: 8000кГц, tx1_gain: 86.000000 tx2_gain: 86.000000 ЖАРАЙДЫ МА |
Ескерту | сұрау командасы |
Set Encoder Command
формат | ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(аудио)_ Мысал: ATSE0,0,0.0,0,0_ |
параметр | 1. 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. Битрейт: 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 |
пайдалану | Used to set encoding parameters (таратқыш) |
Return Value | Мысал:ATSE0, 0,0.0,0,0_ MODE:0,RT:0,bitrate: 0.0Mbps,gop:0,аудио:0,ЖАРАЙДЫ МА |
Ескерту | setting command, save when power is off. |
Get Encoder Command
формат | ATGE_ |
параметр | жоқ |
пайдалану | querying encoding parameters (sending end) |
Return Value | Мысал:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,аудио:0,aes:0, ЖАРАЙДЫ МА |
Ескерту | Query command AES means the current encryption status: 0 disable; 1 enable |
Get Input Command
формат | ATGI_ |
параметр | жоқ |
пайдалану | query the current camera input parameters (таратқыш) |
Return Value | Мысал:ATGI_input_size: 1080P, input_rate: 60FPS, sensor_type: hdmi,ЖАРАЙДЫ МА |
Ескерту | сұрау командасы |
Set Input Command
формат | ATSI$(input_size),$(input_rate)_ Мысал: ATSI1080,25_ |
параметр | 1. 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 |
пайдалану | To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (таратқыш) |
Return Value | Мысал: ATSI1080,25_ Input_size:1080P,input_rate: 25FPS, ЖАРАЙДЫ МА |
Ескертпелер | After 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
формат | ATSO$(output_size),$(output_rate)_ Мысал: ATSO720,30_ |
параметр | 1. таратқыш: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. қабылдағыш: HDMI output resolution (720, 1080) 3. таратқыш: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (FPS) 4. қабылдағыш: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60) |
пайдалану | 1. таратқыш: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. қабылдағыш: used to configure the resolution and frame rate of HDMI output |
Return Value | Мысал: ATSO720,30_ output_size: 720P, output_rate: 30FPS, ЖАРАЙДЫ МА |
Ескертпелер | 1. 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 кіру)
формат | ATSU$(vin),$(Айн)_ Мысал: ATSU0,1 _ |
параметр | 1. 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 |
пайдалану | Used to meet specific application requirements (Мысал: HDMI/SDI input video, MIC input audio) |
Return Value | Мысал: ATSU0,1_ ATSU0,1 OK |
Ескерту | setting command, power-off save. |
Get User Command
формат | ATGU _ Мысал: ATGU_ |
параметр | жоқ |
пайдалану | To query user-specific configuration |
Return Value | Мысал: ATGU_ ATGU0,1 OK |
Ескерту | сұрау командасы return parameter description please refer to the ATSU command |
Set Receiver Command
формат | ATSR $(жиілігі), $(bw ), $(llc), $(cvbs)_ Мысал: ATSR320000,6000,0,0_ |
параметр | 1. DR2C carrier frequency freq(кГц) 200000~860000(200МГц ~ 860MHz, 1КГц қадамы) 2. DR900 carrier center frequency freq(кГц) 200000~1600000(200MHz~1.6GHz, 1КГц қадамы) 3. DR2C channel bandwidth bw(кГц) 2000~8000(2МГц~8МГц, 1КГц қадамы) 4. DR900 channel bandwidth bw(кГц) 3200~8000(3.2МГц~8МГц, 1КГц қадамы) 5. Enhanced data reliability option llc: 0 disable; 1 enable (it is required that the transmitter should also enable this option at the same time, and use it in pairs. Since more redundant data is added to enhance reliability, the video bit rate of the transmitter should be set to when this option is turned off half of) 6. AV output system cvbs: 0 pal; 1 ntsc |
пайдалану | To set the receiver parameter |
Return Value | example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK |
Ескерту | setting command, save when power is off. |
Get Receiver Command
формат | ATGR_ |
параметр | жоқ |
ATGR_ | the receiving end parameter |
Return Value | Мысал: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 ЖАРАЙДЫ МА |
Ескерту | 1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 enable 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc |
Get Bit Error Rate Command
формат | ATGB_ |
параметр | жоқ |
пайдалану | querying the bit error rate and signal strength of the dual antennas at the receiving end |
Return Value | Мысал: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 ЖАРАЙДЫ МА |
Ескертпелер | 1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, Бастап 0.0% қарай 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, Бастап 0 қарай 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock) |
Set Password Command
формат | ATSP$(password), $(password)_ Мысал: ATSP123456, 123456_ |
параметр | AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation) |
пайдалану | Used to set the AES key of the transceiver (таратқыш және қабылдағыш) |
Return Value | Мысал: ATSP123456_ ATSP123456 OK |
Ескерту | 1. When the password is all 0, AES encryption is turned off. 2. Set the command and save it after powering it off. |
Set Data Transfer Command
формат | ATST$(беру жылдамдығы), $( parity)_ Мысал: ATST115200,0_ |
параметр | 1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Ешбір; 1: Odd; 2: Even |
пайдалану | Used to set the baud rate and parity bit of the serial port for data transparent transmission |
Return Value | Мысал: ATST115200,0_ ATST115200,0 OK |
Ескертпелер | Set command |
Get Data Transfer Command
формат | ATGT_ |
параметр | жоқ |
пайдалану | Used to query the baud rate and check code |
Return Value | Мысал: ATGT_ ATGT115200,0 OK |
Ескертпелер | Query command |
Set IP Address Command
формат | ATSIP$(ip), $(ip)_ Мысал: ATSIP192.168.1.215,192.168.1.215_ |
Параметрлер | Local IP address Local IP address (repeat to confirm) |
пайдалану | Used to set the receiver IP address |
Return Value | Мысал: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK |
Ескертпелер | 1. After setting the IP address, the receiving end needs to be restarted to take effect. 2. Set the command and save it after powering it off. |
Get IP Address Command
формат | ATGIP_ Мысал: ATGIP_ |
параметр | жоқ |
пайдалану | қабылдаушы жақтың ағымдағы IP мекенжайын сұрау үшін |
Қайтарылатын мән | Мысал: ATGIP_ ATGIP192.168.0.215 Жарайды |
Ескерту | сұрау командасы |
OSD Overlay Protocol
формат | ATOSD$(idx), $(X), $(y), $(str)_ Мысал:ATOSD0,40,20,height: 100m_ |
параметр | 1. IDX index: 0~7 (supports OSD overlay for 8 areas) 2. X-coordinate: 0~1919 3. Y coordinate: 0~1079 4. str: the string to be displayed at the corresponding coordinates (the space symbol is used to clear the display) |
пайдалану | on the video screen.OSD information |
Қайтарылатын мән | жоқ |
Ескертпелер | 1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 пиксел, and the system will correct the coordinates according to the actual display situation. 2. The ‘_’ character cannot be contained in the str parameter |
Set Gain To Adjust
формат | ATSAD$(жиілігі),$(adjust) _ Мысал:ATSAD700000,2.5_ |
параметр | wireless central working frequency: Жиілігі(кГц) 200000~2700000(200MHz~2.7GHz, step: 1кГц) Adjust the value(дБ): ATSD cmd will subtract this value to set the wireless gain |
функция | Specify and adjust the value for the wireless gain setting using by ATSD cmd |
Кері байланыс | Мысал: ATSAD700000,2.5_ freq:700000,adjust:2.50 ЖАРАЙДЫ МА |
Пікірлер | Setting command is still valid when stopping power or resetting. |
Get Gain To Adjust
формат | ATGAD[$(жиілігі)]_ Мысал:ATGAD700000_ |
параметр | wireless central working frequency: Жиілігі(кГц) 200000~2700000(200MHz~2.7GHz, step: 1кГц) When no parameter provides, it will list all the freq that have adjusted value. |
функция | Inquiry adjust the value for wireless gain setting using ATSD cmd |
Кері байланыс | Мысал: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 ЖАРАЙДЫ МА |
Пікірлер | Inquiry command. |
Serial Port Utility software download
HTTPS://www.alithon.com/downloads
Жиі қойылатын сұрақтар
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 (пайда) 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 set – B bandwidth (kHz) and E bit rate (Mbps). When I set E, the new value does not apply. Сонымен. the E setting is only for monitoring of available bitrate? if I wish to change the E (Битрейт) I have to change only B (өткізу қабілеті)? Am I right?
It is not recommended to modify the video bit rate ‘E’ directly, because if the output video bit rate is greater than the wireless air interface rate, the system will not work normally.
Әдепкі бойынша, the internal video bit rate ‘E’ will be set to 0 for automatic. Customers only need to modify ‘B’ to 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 модуляторы демодулятор модулі Кодер декодер HDMI CVBS AV кірісі AES 256 FHD RF ағыны
Пікірлер
Пікірлер жоқ болып табылады.