mirror of
https://github.com/peter-tanner/peter-tanner.github.io.git
synced 2024-11-30 12:00:18 +08:00
43 lines
3.5 KiB
Markdown
43 lines
3.5 KiB
Markdown
|
---
|
||
|
|
title: Chinese ZHONGKEWEI ATGM* GNSS modules comparison
|
||
|
|
author: peter
|
||
|
|
date: 2024-11-25 04:00:36 +0800
|
||
|
|
categories: [Electronics] # 0-2 categories. Blogging | Electronics | Programming | Mechanical | SelfHosting | Guides | University
|
||
|
|
tags: [gps,gnss,cheap,comparison,ublox] # 0-\infty. systems | embedded | rf | microwave | electronics | solidworks | automation | tip
|
||
|
|
# image: assets/img/2024-11-25-Chinese-ZHONGKEWEI-A/preview.png
|
||
|
|
---
|
||
|
|
|
||
|
|
The ZHONGKEWEI ATGM* series of GNSS modules appear to emulate the popular u-blox NEO and MAX series and are (almost) pin compatible.
|
||
|
|
|
||
|
|
| Model | GPS | BDS | GLONASS | Galileo | QZSS | VCC [V] | Interfaces | Internal SOC | TTFF [s] | Maximum output rate [Hz] | CEP50 [m] | Cost [AUD] |
|
||
|
|
| -------------------- | --- | --- | ------- | ------- | ---- | ------- | -------------------- | ------------ | -------- | ------------------------ | --------- | ---------- |
|
||
|
|
| ATGM332D-6N-74 | ✅ | ✅ | ✅ | ✅ | ✅ | 2.7-3.6 | UART,I2C,SPI | AT6668 | 23 | 10 | 1.5 | 5.3287 |
|
||
|
|
| ATGM336H-6N-74 | ✅ | ✅ | ✅ | ✅ | ✅ | 2.7-3.6 | UART,I2C,SPI | AT6668 | 23 | 10 | 1.5 | 5.3171 |
|
||
|
|
| ATGM336H-5N31 | ✅ | ✅ | ❌ | ❌ | ❌ | 2.7-3.6 | UART1,UART2 | AT6558 | 32 | 10 | 2.5 | 4.6255 |
|
||
|
|
| ATGM332D-5N31 | ✅ | ✅ | ❌ | ❌ | ❌ | 2.7-3.6 | UART1,UART2 | AT6558 | 32 | 10 | 2.5 | 4.1224 |
|
||
|
|
| ATGM332D-5NR32 | ✅ | ✅ | ❌ (?) | ❌ | ❌ | 1.8-3.6 | UART1,UART2 | AT6558R | 32 | 5 | 2.5 | 4.0525 |
|
||
|
|
| ATGM336H-5NR32 | ✅ | ✅ | ❌ (?) | ❌ | ❌ | 1.8-3.6 | UART1,UART2 | AT6558R | 32 | 5 | 2.5 | 3.8498 |
|
||
|
|
| ATGM332D-5N11 | ✅ | ❌ | ❌ | ❌ | ❌ | 2.7-3.6 | UART1,UART2 | AT6558 | 32 | 10 | 2.5 | 5.9460 |
|
||
|
|
| ATGM336H-5N11 | ✅ | ❌ | ❌ | ❌ | ❌ | 2.7-3.6 | UART1,UART2 | AT6558 | 32 | 10 | 2.5 | 5.0609 |
|
||
|
|
| NEO-M9N (**u-blox**) | ✅ | ✅ | ✅ | ✅ | ✅ | 2.7-3.6 | UART,I2C,SPI,**USB** | UBX-M9140-KB | 24 | **25** | 2.0 | 45 |
|
||
|
|
|
||
|
|
These parameters seem to be the same for all ATGM modules:
|
||
|
|
|
||
|
|
| Key | Value | Note |
|
||
|
|
| ---------------------------- | -------- | ------------------------ |
|
||
|
|
| Cold start sensitivity [dBm] | -148 | |
|
||
|
|
| Tracking sensitivity [dBm] | -162 | |
|
||
|
|
| Protocols | NMEA0183 | |
|
||
|
|
| Battery and RTC | ✅ | |
|
||
|
|
| Lockout speed [m/s] | 515 | Not specified on AT6668? |
|
||
|
|
| Lockout altitude [m] | 18000 | Not specified on AT6668? |
|
||
|
|
| Lockout acceleration [g] | 4 | Not specified on AT6668? |
|
||
|
|
|
||
|
|
The main differences compared to the NEO-M9N are:
|
||
|
|
|
||
|
|
- Significantly lower cost
|
||
|
|
- Lower maximum output data rate of only 10 Hz
|
||
|
|
- Slightly higher lockout speed of 515 m/s
|
||
|
|
- Lower lockout altitude of 18000 m (compared to 80000 m)
|
||
|
|
- Lacks USB and lacks UBX or any binary output format
|