Giải pháp giám sát COFDM để truyền video không dây

In the field of surveillance and security, đáng tin cậy truyền video không dây là điều cần thiết. Traditional Wi-Fi or analog links often fail in tầm xa hoặc là không có tầm nhìn (NLOS) môi trường. This is where COFDM surveillance solutions stand out, cung cấp ổn định, được mã hóa, và truyền video có độ trễ thấp over challenging terrains.

Gần đây, many customers have shown interest in implementing COFDM wireless technology vì vehicle-mounted cameras, 360° surveillance systems, and control room monitoring. Let’s explore the key requirements và hidden needs that often come with deploying a COFDM surveillance solution.

---

Customer’s Expressed Requirements

1. COFDM Wireless Solution
   • Vehicle-mounted COFDM transmitters with 360° cameras.
   • Centralized máy thu COFDM in the control room.
2. Kịch bản ứng dụng
   • Được thiết kế cho land-based surveillance and security: xe cộ, ground personnel, and control centers.
3. Dải tần
   • Must comply with AS923-1 frequency band (used across Asia-Pacific for wireless communication).
   • Tần suất tùy chỉnh, we can do the working frequency from 170-6000MHz for you.
4. Phạm vi truyền
   • Maximum possible long-range wireless video transmission.
   • Clarification needed for both Đường ngắm (LOS) và Không có đường ngắm (NLOS) coverage.

---

Hidden Needs for COFDM Surveillance Systems

While customers usually list the basics, many critical requirements are not mentioned explicitly. Một professional COFDM surveillance solution should consider the following:

1. Chất lượng Video & Độ trễ

• Required resolution: HD, HD đầy đủ, or 4K.
• Real-time response with độ trễ thấp (<100bệnh đa xơ cứng).
• Efficient compression (H.265/H.264) for better bandwidth usage.

2. Tính cơ động & Sự ổn định

• Support for high-speed vehicle movement (cảnh sát, quân đội, khẩn cấp).
• Doppler-resistant COFDM modulation for uninterrupted reception.

3. Quyền lực & Ruggedization

• Vehicle-compatible power supply (DC 12V/24V).
• Thiết kế chắc chắn: không thấm nước, chống bụi, chống sốc.

4. Control Room Integration

• Multiple output formats: HDMI, SDI, IP stream (RTSP/UDP).
• Option for multi-channel reception to monitor several vehicles simultaneously.

5. Bảo vệ & Mã hóa

• AES-128/256 encryption for secure video feeds.
• Authentication to prevent interception of surveillance data.

6. Khả năng mở rộng

• Expansion to cover multiple vehicles and personnel.
• COFDM Mesh Networking or relay mode for extended range.

7. Tuân thủ quy định

• Legal operation within the AS923-1 frequency band.
• Certification and licensing support for local regulations.

8. Ease of Deployment

• Plug-and-play setup with existing security infrastructure.
• Portable handheld receivers for security staff in the field.
• Software integration with NVR systems or cloud-based monitoring.

---

Example of a Complete COFDM Surveillance Solution

A well-designed COFDM surveillance system for land use may include:

• Máy phát COFDM: Mounted on vehicles with 360° PTZ or panoramic cameras.
• Bộ thu COFDM: Installed in the control room with HDMI/IP output to large displays or video servers.
• Mobile Receivers: Portable units for ground security teams.
• Mesh or Relay Nodes: To extend long-range wireless video transmission in NLOS environments.
• Mã hóa & Bảo vệ: AES-256 to ensure data protection.
• Frequency Compliance: Fully tuned for AS923-1 frequency band hoạt động.

---

Phần kết luận

When planning a COFDM surveillance solution, customers should not only focus on transmitters and receivers but also consider:

• Video quality and latency for real-time decision-making.
• Encryption and frequency compliance for secure and legal operation.
• Scalability and integration with control rooms and mobile teams.

By addressing these hidden needs, Một COFDM-based long-range wireless video transmission system can deliver ổn định, chắc chắn, and mission-ready surveillance performance, whether in tầm nhìn hoặc là không có tầm nhìn môi trường.

If you are exploring COFDM surveillance solutions using AS923-1 frequency band or other customized frequency, consider the complete ecosystem — transmitters, máy thu, network integration, and regulatory compliance — to achieve maximum efficiency and reliability.

We currently customize two products according to the customer’s demand on COFDM Surveillance Solution for Wireless Video Transmission.