مقارنة الكاميرا الحرارية غير المبردة 640×512 LWIR: متطلبات العملاء مقابل. Mini Series Module
جدول المحتويات
مقدمة
حديثاً, a customer inquired about a compact thermal imaging module with the following key parameters:
دقة: 640×512
معدل الإطار: 60إطارا في الثانية
عدسة: 9.1mm athermal fixed-focus
مجال الرؤية (H×V): 48.7°×38.6°
Spectral range: 8–14μm
Thermal sensitivity (NETD): <50عضو الكنيست
إخراج الفيديو: CVBS (NTSC)
جهد التشغيل: 4.5–18V
درجة حرارة التشغيل: -40°C~+80°C
الأبعاد: 25.8×25.8×28mm
وزن: 38ز
This request perfectly aligns with our Thermal Module (Mini Series) line — a family of ultra-compact uncooled LWIR camera cores. Below is a detailed comparison between the customer’s requirements and our Mini-640-CVBS نموذج.
1. Specification Comparison
| المعلمة | متطلبات العملاء | Vcan2170 (Mini-640-CVBS) | Result |
|---|---|---|---|
| نوع الكاشف | Uncooled (unspecified) | Vanadium Oxide (VOx) uncooled FPA | ✅ Match |
| دقة | 640×512 | 640×512 | ✅ Match |
| درجة البكسل | 12ميكرومتر | 12ميكرومتر | ✅ Match |
| المدى الطيفي | 8–14μm | 8–14μm | ✅ Match |
| عدسة | 9.1mm athermal fixed-focus | 9.1مم / 13mm F1.0 athermal | ✅ Match |
| مجال الرؤية (مجال الرؤية) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| معدل الإطار / Refresh Rate | 60إطارا في الثانية / 25هرتز | 50إطارا في الثانية | ⚠️ Slightly lower |
| الحساسية الحرارية (NETD) | <50عضو الكنيست | ≤40mK @ F1.0 | ✅ Better |
| Image Processing | NUC, 3DNR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| Display Mode | White Hot | 18 color palettes (includes White Hot) | ✅ More options |
| إخراج الفيديو | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| Power Supply | 4.5–18V | 4.5–20V | ✅ Match |
| استهلاك الطاقة | — | <0.75W | ✅ Low power |
| الأبعاد | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| وزن | 38ز | 21ز (without lens) | ⚠️ Lighter |
| درجة حرارة التشغيل | -40°C~+80°C | -40درجة مئوية~+70 درجة مئوية | ⚠️ 10°C lower upper limit |
| Detection / Recognition / ID Range | 1.1كم / 250م / 170م | Not specified | ⚠️ Depends on lens |
| Depth of Field | 1.69m–∞ | Not specified | ⚠️ Not defined |
| نظام التلفزيون | NTSC | إخراج CVBS ( PAL or NTSC ) | ✅ Match |
2. Summary of Compatibility
| فئة | التوافق | تعليقات |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, sensitivity |
| Optical Lens / مجال الرؤية | ✅ Nearly identical | FOV difference <3° |
| إشارة & واجهة الطاقة | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3DNR + DDE |
| Mechanical Size / وزن | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (مقابل. +80درجة مئوية) |
| معدل الإطار | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
ال Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
إنه 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, و F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- معدل الإطار: 50إطارا في الثانية (instead of 60fps)
- درجة حرارة التشغيل: +70درجة مئوية (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, حماية, and inspection applications.
4. Recommended Applications
- الطائرات بدون طيار / Drone Thermal Imaging
- خفيفة الوزن وصغيرة الحجم, ideal for airborne integration.
- الأمن والمراقبة
- Detects human or vehicle heat signatures in total darkness.
- التفتيش الصناعي
- Used for electrical fault detection and equipment monitoring.
- مكافحة الحرائق / بحث & ينقذ
- Locates hotspots or victims through smoke or fog.
- مراقبة الحياة البرية والحياة البرية
- Clear thermal visibility in night or low-light conditions.
5. الأسئلة الشائعة
1. What does “Athermal Lens” mean?
An athermal lens is designed to maintain focus and image clarity even when ambient temperature changes. It compensates for thermal expansion, ensuring stable performance across -40°C to +80°C.
2. Why is the refresh rate only 25Hz instead of 60Hz?
Most uncooled LWIR thermal sensors are limited to 25Hz for export compliance and signal processing reasons. Despite this, they still provide smooth, real-time video output for UAV and surveillance use.
3. Can this module output HDMI or IP video instead of CVBS?
This version supports analog CVBS output. For digital or IP output, optional modules with HDMI or Ethernet interfaces can be customized.
4. Is this module suitable for drone integration?
نعم فعلا. With its lightweight 38g design, wide voltage input (4.5–18V), and athermal optics, it is ideal for UAV payloads requiring stable imaging under rapid temperature changes.
5. What is the detection distance of 1.1km based on?
This distance refers to human target detection under standard atmospheric conditions using a 9.1mm lens. Actual performance may vary depending on humidity, درجة الحرارة المحيطة, and target size.
6. خاتمة
ال Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
It delivers high thermal sensitivity, انخفاض استهلاك الطاقة, و flexible interfaces in a مصغرة, تصميم متين.
With its robust VOx detector and athermal optics, it’s a perfect fit for الطائرات بدون طيار, portable imaging devices, and security systems.
✅ Mini-640-CVBS fully meets your application needs, with minor differences in frame rate and temperature range that do not affect performance.
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