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Product testing: InfiRay’s dual-spectrum bullet network camera

Product testing: InfiRay’s dual-spectrum bullet network camera
The camera uses InfiRay’s self-developed uncooled infrared detector combined with visible light camera to truly achieve 7×24-hour, all-scenario monitoring. This article takes a closer look, based product testing by a&s China.
As a leader in the field of thermal imaging, InfiRay has continuously improved thermal imaging technology over the years to allow thermographic cameras that were previously considered high-end products to become popular in the market. The company has recently launched their FB4 series of dual-spectrum bullet network cameras, which use InfiRay’s self-developed uncooled infrared detector combined with visible light camera to truly achieve 7×24-hour, all-scenario monitoring. This article takes a closer look, based product testing by a&s China.

Classic bullet design

The FB4 dual-spectrum bullet camera comes with dimensions of 319.5 × 121.5 × 103.6mm and adopts a classic bullet design which allows easy installation and 360-degree monitoring with no blind spots. The camera is made of aluminum alloy, which not only reduces the overall weight but also enhances heat dissipation capabilities to ensure long-term operation of the device.
The top of the camera has a retractable protective cover allowing the user to adjust the length of the cover based on current conditions. Camera parts are sealed with a sealing ring to effectively avoid interference from rain, fog and other particles. At the same time, InfiRay uses sealed sponge pads at the place where the L-shaped bracket and network cable come together to ensure the safety of the latter.
On the front of the product are the visible light camera and thermal imaging camera units. They are respectively equipped with a 5MP 1/2.8" Progressive Scan CMOS sensor and a 12μm vanadium oxide uncooled focal plane detector with a resolution of 640×512. This way, users can view scenes regardless of weather or time.
Below the camera is a warning light, which can deter outsiders. When encountering high temperatures or fire points, the light will also flash to notify surrounding security personnel. At the bottom of the camera, the user can find the slot for the Micro SD card which can support up to 256G, thereby avoiding the problem of video loss during network downtime.
The dual-spectrum bullet camera is equipped with 12V power supply, RJ45, audio input/output, alarm input/output, RS485 and many other interfaces. The camera can work in environments of -40℃~70℃ and humidity <95 percent. It supports IP67 protection and consumes less than 8W power.

Dual sensors

As a dual-spectrum bullet camera, the FB4 is equipped with a visible light camera unit and a thermal imaging camera unit.
The visible light camera is equipped with a 5MP 1/2.8" Progressive Scan CMOS sensor, which can generate color video images under starlight conditions with a maximum resolution of 2560 × 1920 at a stable 25 fps. In a completely dark environment, the camera can automatically turn on infrared to provide supplementary light, with a maximum supplementary light distance of about 40 meters.

At the same time, the visible light sensor complements a wide-angle 6mm lens, which expands the viewing angle and further increases the viewing range. The visible light camera also supports ultra-wide dynamic range, backlight compensation, strong light suppression, 3D noise reduction, electronic anti-shake and other functions, making it capable of 24-hour monitoring in various indoor, outdoor and ultra-low illumination scenes.
The thermal imaging camera is equipped with a 12 μm vanadium oxide uncooled focal plane detector with a resolution of 640 × 512. It is worth noting that as a civilian thermal imaging sensor, the vanadium oxide uncooled focal plane detector has high accuracy and good anti-interference capabilities. At the same time, this thermal imaging camera is equipped with a 19mm wide-angle lens, allowing the camera to be used in large-area scenes or environments.
Thermal imaging is the main highlight of the FB4 series. It can effectively capture people, vehicles, fire points and other targets even in extreme conditions such as dark night, rain, fog and heavy snow, and can provide timely warnings to achieve prevention beforehand.

It is worth noting that for most thermal imaging cameras, they usually use a single color tone, which causes visual fatigue when viewed for a long time. In response to this problem, the FB4 camera allows display of a range of colors including white hot, black hot, iron red and others, making monitoring more intuitive.
At the same time, the camera can display the highest and lowest temperature of a given area, and the user can choose an area to see its temperature in real time. In addition, the camera can also achieve fusion of visible light and thermal images, thereby achieving more accurate image display.

Intelligent functions

Besides hardware, the camera also has intelligent applications. It is equipped with behavioral analysis algorithms through which tripwire intrusions, area intrusions, items left behind, personnel aggregation and other scenarios can be achieved. If suspicious activities are detected, the camera will automatically record or take pictures, sound an alarm and notify relevant personnel.
In addition to behavioral analysis, the camera can also issue alerts upon detecting: video occlusion, scene changes, audio irregularities, SD card abnormalities, network abnormalities, illegal access and others.
As for the thermal imaging unit, it can intelligently monitor the temperature of objects. When the camera detects that the temperature of an object has exceeded the set value, it will immediately send out an audible and visual alarm, and will automatically upload data to the backend system and notify relevant managers via registered email address.
At the same time, the camera supports the prediction of fires. Most fires are caused by the temperature reaching the ignition point. The dual-spectrum bullet camera can determine the gray value of distant fire points. Once the set threshold is reached, the camera will automatically perform alarm processing.
It is worth noting that in order to avoid interference from unavoidable factors such as air temperature and radiation, the camera supports the adjustment of parameters including: atmospheric temperature, transmittance, radiation coefficient, target distance, and reflected temperature to effectively avoid false alarms.
Meanwhile, the integrative capability of the camera should not be ignored. The dual-spectrum bullet camera supports GB28181 and ONVIF protocols and comes with SDKs that allow software development and integration with third-party platforms. This allows the camera to co-work with other intelligent devices through backend devices such as NVRs to further ensure the safety of the monitoring area.

Product advantages

1. Reduced cost and increased efficiency: The simple design and multiple video display modes can not only meet the personalized needs of users, but also effectively reduce learning costs, satisfy users of different operating levels, and improve work efficiency;
2. Strong adaptability: Thermal imaging can be effectively used in extreme conditions such as darkness, rain and fog to make up for the shortcomings of visible light cameras;
3. Accurate alarms: Based on intelligent applications, the camera can effectively filter out various interference sources and achieve accurate alarms in the event of fire point detection and personnel and vehicle intrusion;
4. Wide range of application scenarios: Suitable for fire prevention in warehouses, scenic spots, museums and ancient buildings, and perimeter protection in oil fields, water facilities and government buildings.

a&s review

With rapid urbanization, traditional video surveillance equipment has become difficult to meet the current homeland security and economic development needs. To “see clearly” in all environments, city operators increasingly turn to thermal imaging cameras, which can effectively see through complex environments such as clouds, fog and water vapors, thus meeting the need to monitor in low-illumination and inclement conditions.
In this regard, InfiRay has launched their FB4 series of dual-spectrum bullet cameras, which use InfiRay’s self-developed uncooled infrared detectors combined with a visible light sensor. The camera empowers all walks of life, allowing users to adopt different configurations according to their own personalized needs. For those wishing to truly achieve 24-7 all-scenario monitoring, the camera can work wonders.
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