Le module de laser miniature STA-D09A, utilise un laser semi-conducteur de 905 nm, qui a les caractéristiques de la consommation d'énergie à longue portée, de faible taille et de sécurité oculaire. Il est très adapté à l'intégration de petits gousses de véhicules aériens sans pilote, de dispositifs de vision nocturne portables, d'imagerie thermique et d'autres équipements.
Plage maximale: 1200m
Précision allant: ± 1M
Fréquence de tâtaise: Tard à un seul coup, 1Hz, 2Hz
Poids: 10g ± 0,5 g
Semiconductor Laser Technology: Superior reliability, compactness and lower power consumption than traditional time-of-flight (TOF) rangefinders, enabling integration into portable and space-constrained devices.
Serial number | Project Name | STA-D09A |
1 | Human eye safety | Yes |
2 | Laser wavelength | 905nm |
3 | Laser divergence angle | 1×6mrad |
4 | Receiving field of view | ~20mrad |
5 | Transmitter Caliber | Φ10×7.5mm |
6 | Receiving caliber | Φ15×10mm |
7 | Ranging range | 5~1200m |
8 | Ranging accuracy | ±1m |
9 | Measuring frequency | Single-shot ranging, 1Hz, 2Hz |
10 | Accuracy rate | ≥98% |
11 | False alarm rate | ≤1% |
12 | Data Interface | UART(TTL_3.3V) |
13 | Supply voltage | DC 3~5 V |
14 | Power consumption |
Standby: ≤0.6W@3.3V; Work: ≤1W@3.3V; |
15 | ||
16 | Weights | 10±0.5g |
17 | Size(L×W×H) | ≤26×25×13.5mm |
18 | Operating temperature | -20~+60℃ |
19 | Storage temperature | -30~+60℃ |
20 | Shock | 1200g, 1ms |
21 | Vibration | 5~50~5Hz, 1 octave/min, 2.5g |
22 | Reliability | MTBF≥1500h |
23 | Start-up time | ≤200ms; |
24 | Electrical interface |
Socket: 0.8WTB-6AB-01 Plug: 0.8WTB-6Y-2 |
The main components of the laser rangefinder product are as follows:
a) Receiving and transmitting components;
b) Circuit components;26mm×25mm×13.5mm(L×W×H), the weight is ≤10g±0.5g, and its appearance is shown in Fig.1.
Figure 1 Product Appearance
The external dimensions of the mechanical and optical interfaces are shown in Figure 2.
Figure 2 Mechanical and optical interface diagram
Electrical interface
The electrical interface requirements are as follows:
a) Power supply voltage: 3V~5.5V (typical value 3.3V or 5V);
b) Standby power consumption: ≤ 0.8W;
c) Average power consumption: ≤ 1W;
d) The upper computer end achieves cross-linking testing with the distance measuring machine end 0.8WTB-6AB-01 connector (Yueqing Huabao) through the 0.8WTB-6Y-2 connector. The definitions of the power supply and communication port pins on the rangefinder end are shown in Table 1, and the connector pin positions are shown in Figure 3.
Table 2 Definition of Product Electrical Pin
Pin | Labeling | Electrical Characteristics Definition | Signal direction |
1 | Power-EN |
|
|
2 | TTL_RXD | Signal input port | Host computer to rangefinder |
3 | TTL_TXD | Signal output port | Rangefinder to host computer |
4 | NC |
|
|
5 | Power supply+ |
|
|
6 | GND |
|
|
Electrical Connection Diagram
Data
♦ Baud rate: 115200bps;
♦ Single byte transmission format: including 1 start bit, 8 data bits, no check, 1 stop bit, 8bit data is transmitted first in low and then in high;
Protocol
Single ranging command
Note: Send the verification code = byte 3 + byte 4 + byte 5 + byte 6 + byte 7;
Received verification code = byte 1 + byte 2 + byte 3 + byte 4 + byte 5 + byte 6 + byte 7.
Send to the ranging module
byte | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
description | 0x55 | 0xAA | 0x88 | 0xFF | 0xFF | 0xFF | 0xFF | check code |
The ranging module returns
byte | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
description | 0x55 | 0xAA | Freq | status | 0xFF | DATA_H | DATA_L | check code |
Status=0, continuous measurement fails; DATA_H=0xFF, DATA_L=0xFF; status=1, continuous measurement succeeds; DATA_H=high byte of the measurement result; DATA_L=low byte of the measurement result.
Freq=0x89, 1Hz for ranging; Freq=0xA9, 2Hz for ranging; Freq=0xB9, 5Hz for ranging; Freq=0xF9 for axis calibration mode (the axis status is sent back once after receiving the axis calibration instruction).
Stop measuring
Send to ranging module:
byte | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
description | 0x55 | 0xAA | 0x8E | 0xFF | 0xFF | 0xFF | 0xFF | check code |
The ranging module returns:
byte | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
description | 0x55 | 0xAA | 0x8E | status | 0xFF | 0xFF | 0xFF | check code |
Status=0, the continuous measurement is failed to be closed; status=1, the continuous measurement is successful to be closed.
Note: The data is returned in hexadecimal, and all the data results will be output by multiplying the real data by 10;
Example: dist=2000.3m, the output data is 20003, which is converted into hexadecimal as 4E23, that is, Data1=0x4E and Data2=0x23.