Dron transmitterida RSSI va SNRni qanday olish mumkin?

savol: I noted that the TX900 webpage does not send RSSI data to the flight controller; it will not trigger a failsafe action when the radio link is lost. Is there any way to work around this issue?

javob: RSSI simsiz ulanish holati ma'lumotlari mijozlarni talab qiladi (parvoz boshqaruvchilari kabi) uni olish uchun AT buyruqlarini qo'lda yuborish. Uni ikki yo'l bilan olish mumkin:

1. UART3 ni sozlang (ma'lumotlar porti 3) AT buyrug'ining ketma-ket porti sifatida, va keyin UART3 orqali AT buyruqlarini yuboring (D3) olish. https://ivcan.com/change-d3-from-transparent-serial-port-to-at-command/
2. Mikrodastur versiyasini yangilang 1.5.1 yoki yuqorida, Shunday qilib, mijozlar simsiz maqomini olish uchun AT buyruqlarini yuborish uchun TCP orqali kirishlari uchun qo'shimcha TCP serveri mavjud bo'ladi..

Here is the explanation from our engineer.

1. LED chiroq simsiz ulanish holatini ko'rsatish uchun ishlatiladi (misol uchun, simsiz aloqa uzilgan bo'lsa, yorug'lik o'chadi), and there is no dedicated external pin to notify the customer of flight control.
2. Our core module has GPIO pins, but they are basically connected to LED lights. Our vcan1681 module also has such pins, but currently, it is also connected to LED lights.
3. If you are willing to spend money on customization, we can customize a special one for you, and the external interface can be changed.
4. Mijozlar bizning dron simsiz video ma'lumotlar havolalarimizdan foydalanganda, ular, albatta, ketma-ket port yoki tarmoq porti orqali havo tomonidagi parvozni boshqarish ma'lumotlarini ketma-ket portga olishlari kerak bo'ladi.
5. Umumiy usul simsiz aloqaning ishonchliligini o'lchash uchun yer stansiyasi dasturiy ta'minotiga va parvozni boshqarish dasturiga tekshirishni qo'shishdir. Ushbu paytda, dasturiy ta'minotdagi havola sifatini va ulanishni uzish hodisalarini to'liq his qilishingiz mumkin, va keyin signal berish va uni boshqarish uchun dasturiy ta'minotdagi chegarani o'rnating.
6. Demak, Agar xato darajasi ma'lum chegaradan oshib ketgan bo'lsa, yerosti stansiya dasturi bizning simsiz aloqamiz orqali havo tizimi parvozini boshqarish ma'lumotlarini olganida, simsiz aloqa ishonchsiz chegaraga yetdi va uni qayta ishlash kerak deb hisoblash mumkin. Bu Xitoyning dron kompaniyalari orasida keng tarqalgan amaliyotdir.

Talking RSSI SNR for the below products

savol: Can you develop a new model for me? It is easy to get RSSI and SNR?

Simsiz aloqa ulangan/o'chirilganligi haqida real vaqt rejimida ma'lumot olishingiz kerakmi?? Yoki biz hatto RSSIni ham olishimiz kerakmi??

Chunki GPIO faqat ikkita holatni aniqlay oladi: 0/1, u faqat simsiz aloqa ulangan/o'chirilganligini ko'rsatish uchun ishlatilishi mumkin, va RSSI qiymatlarini ifoda eta olmaydi (RSSI va SNR qiymatlari hali ham AT buyruqlari orqali olinishi kerak)

Agar sizga ulangan/uzilgan havola holatiga qo'shimcha ravishda RSSI va SNR kabi ma'lumotlarni faol ravishda xabar qilishimiz kerak bo'lsa, keyin siz moslashtirilgan loyihaga muvofiq harakat qilishingiz kerak. Ehtiyojlaringizni aniq tasvirlab berishingiz kerak, o'rnatish interfeyslari, etc. (oddiy gapda o'rniga), so that we can evaluate the difficulty of developing customization and the ways to achieve it.

What is SNR and RSSI?

SNR (Signal-to-Noise Ratio) is a ratio-based metric that measures your signal in relation to the noise.SNR is made up of two values that are measured as a positive number between 0db and 120db, with the closer it is to 120db, the better: signal value and noise value, both of which are commonly reported in decibels (db).

TheRSSI (Received signal strength indication) will look at the Signal (Also known as RSSI) first this value is measured in decibels from 0 (zero) uchun -120 (minus 120) now when looking at this value the closer to 0 (zero) the stronger the signal is which means it’s better, typically voice networks require a -65db or better signal level while a data network requires -80db or better.

Because the signal is affected by the AP’s transmit power and antenna, as well as the client’s antenna, the normal range in a network would be -45db to -87db depending on power levels and design.

Signal strength (RSSI, “signal strength”, Signal/Noise Ratio). It is often preferable to concentrate on RSSI.

• RSSI -90 dBm: This signal is incredibly faint, and it is at the limit of what a receiver can receive.
• RSSI -67dBm indicates a rather strong signal.
• RSSI greater than -55dBm indicates a very strong signal.
• RSSI > -30dBm indicates that your sniffer is right adjacent to the emitter.

Failsafe

savol: In case of signal loss from the operator, will FailSafe be activated?

javob: Failsafe is the function of the flight controller. We just provide signal transmission and transmit transparent data. What data do you give us, Biz ularni siz uchun uzatamiz.

savol: Qabul qiluvchingiz aloqa uzilganligi haqida xabar bermasa, FailSafe faollashtirilmagan.

javob: Siz signal kuchini olishingiz mumkin. Bizning simsiz video ma'lumotlarni uzatuvchi va qabul qiluvchimizda bu funksiya yo'q. Xitoylik etkazib beruvchilarning simsiz tasvirni uzatishda bu funksiya yo'qligiga ishonaman, bundan mustasno, dron to'plami allaqachon xatoga yo'l qo'ymaslik funksiyasiga ega.