Public:ARHUDFM Features Summary: Difference between revisions
| Line 69: | Line 69: | ||
* hand tracking | * hand tracking | ||
* joystick and buttons | * joystick and buttons | ||
The main problems: the effect on concentration when performing multiple simultaneous actions, both hands are used to control fire and technical facilities. [[File:ARHUD-user-interface-mil-A-01.png|thumb|ARHUD-user-interface-mil-A]] | The main problems: the effect on concentration when performing multiple simultaneous actions, both hands are used to control fire and technical facilities. | ||
=== Power Capacity and Active Cooling System === | |||
* With the ARHUDFM mask, we have thought of this and the non-removable battery capacity is 40,800 mAh (151 Wh), which is equivalent to a lifetime of over 72 hours. And in special cases, when you want to increase the continuous life of the device, the user can connect the power bank from the backpack without removing it, but only by reaching into the pocket and inserting the cable into the connector on the back of the mask. | |||
* Another problem is the cooling of electronic components inside a sealed case, especially the processor (CPU), the graphics processing unit (HPU), the RAM chips, and the battery. Air cooling breaks the seal and moisture and dust can enter. Air cooling is not possible with sealed designs. Liquid cooling is not possible for wearable compact devices. Using aluminum for the outer casing of a wearable device is ineffective because the casing will be heated by direct sunlight to the point where the processor protection kicks in and the processor starts to decelerate until it shuts down completely. We solve the problem with a hybrid circuit consisting of a compact active cooler and heatsink inside and an efficient heatsink outside, connected in a closed loop with digital control. | |||
[[File:ARHUD-user-interface-mil-A-01.png|thumb|ARHUD-user-interface-mil-A]] | |||
=== Situational Awareness (SA) === | === Situational Awareness (SA) === | ||
| Line 133: | Line 140: | ||
* easy access to shot history | * easy access to shot history | ||
* shooter's field of view and especially peripheral areas are not obstructed by the scope | * shooter's field of view and especially peripheral areas are not obstructed by the scope | ||
In the ARHUDFM device, we not only use a complex algorithm of ballistic calculations according to 12+ parameters but also Machine Learning based on the history of shots in a given area under similar conditions, including by other shooters. We use Computer Vision technology to track the point of impact, as well as to make the image as clear as possible for the shooter at high magnification (24x), to correct for climatic variables such as mirage. The MIL/MOA reticle will remain the same size across the zoom range. And, of course, we've thought about the shooter's user experience itself. The shooter sees the image from the stereo camera of the mask along with the reticle, as well as the point of sight line. If the digital aiming device allows, corrective adjustments (MOA) are made automatically after the target has been captured. Or the user sees the calculated values in MOA and in the number of clicks for the specified reticle for the specified magnification. If the sight line is outside the view area boundary, the system tells him which way to move it and how far (important at high magnification). After the test shot, the shooter sees the corrective adjustments on the same screen and can immediately fire again, which is very important for a moving target. Some shooters do this "by eye", and some lose time by making additional corrective adjustments to the scope. The ARHUDFM shows the necessary correction deviation instantly. The shooter must not lose sight of the target by keeping it in the field of view of the stereo camera at all times. The shooter also does not lose visual situational awareness around him, including peripheral vision and rear view, and does not need to cover one eye. This shooting technique is much easier and faster. In addition, there is no need for a second number, a spotter. And the shooter does not become vulnerable during aiming and firing. | |||
The calibrated digital aiming device's spatial gyroscope and the other two sensors must be used to accurately match the sighting line to the camera image of the mask. The mathematical values of the sighting line are transmitted to the computing module of the mask. The aiming algorithm itself sets the necessary corrections and changes the displayed sighting line in the view from the mask cameras (a circle with a crosshair on the outside). We want to highlight that ARHUDFM uses a mathematical way of matching the sighting line and the reticle of the mask, not a graphic "by eye" one like in ENVG-B. The digital zoom uses a 4K, 9K, or 12K stereo camera and the Computer Vision algorithm for pixel smoothing with outline extraction. | |||
After each shot, two modes are used after analysis of the impact point: | |||
the sighting line is not readjusted, but the necessary corrections are displayed on the reticle of the mask camera view (for experienced shooters) | |||
the sighting line is readjusted each time and the shooter aligns the sighting line with the crosshairs of the reticle of the mask camera view | |||
The image quality of the sighting camera (FWS-I characteristics) is usually not very good (640x480Vox, 1x FOV 18°h 13.5v°, 3x FOV 6°h 4.5°v, monochrome BW display, BW dot), including those using a thermal imaging module, only relevant for close-in cover fire (up to 100 yards) when the mask cameras are not used. In the case of aiming by the view from the sight camera, corrective adjustments must be made to the aiming device itself. | |||
In ARHUDFM we do not use laser and infrared sources so as not to de-mask the shooter's firing position. Measurement of distance, course, angular velocity and angular elevation of the target (SLH) above the true horizon is performed by a stereo camera, gyroscope, accelerometer, and magnetometer with high accuracy during day and night. | |||
=== Electronic Planning and Management Tool (Task Management - TM) === | === Electronic Planning and Management Tool (Task Management - TM) === | ||
| Line 157: | Line 181: | ||
* Reduced visibility in the infrared spectrum thermal imaging cameras. The mask protects the open areas of human face skin from thermal light. This reduces the temperature contrast between the surrounding objects and the body parts that the thermal imaging camera records. As you know, the face is the warmest part of the human body. | * Reduced visibility in the infrared spectrum thermal imaging cameras. The mask protects the open areas of human face skin from thermal light. This reduces the temperature contrast between the surrounding objects and the body parts that the thermal imaging camera records. As you know, the face is the warmest part of the human body. | ||
* Technological openings are provided in the headphone area so that the person does not lose acoustic awareness when using the mask. In the back of the mask, there are technological openings for ventilation of the electronic components with the airflow direction from top to bottom. This provides additional active ventilation of the user's under-helmet space and, on the other hand, directs warm air to the neck area, which also provides comfort in use, especially during the cooler seasons. | * Technological openings are provided in the headphone area so that the person does not lose acoustic awareness when using the mask. In the back of the mask, there are technological openings for ventilation of the electronic components with the airflow direction from top to bottom. This provides additional active ventilation of the user's under-helmet space and, on the other hand, directs warm air to the neck area, which also provides comfort in use, especially during the cooler seasons. | ||
=== Safety and Protection of User Health === | |||
* The center of mass in ARHUDFM is centered around the head, so the torque is not felt, despite the comparable mass of the device. According to military experts, weight reduction is desirable, but not critical. But the generated torque is a serious disadvantage. For example, in used night vision devices, there is also a high torque (the weight of the device is about the same), but when the device is not in use, it can be folded upwards and almost completely get rid of this negative effect. | |||
* We do not use external cables in ARHUDFM product, all modules are compactly located inside the mask housing. Even the Software Defined Radio module is integrated. The exceptions are the external antenna, the flexible drinking system pipe, and the flexible compressed air container pipe (for firefighters). However, the route of these communications runs mostly on the back and does not require hanging loops. Other devices may be connected (optionally), but these connections, too, will not critically disturb crawling, shooting in the supine position, and the safe use of ammunition in the front chest pockets. | |||
== C4I, Electronic Warfare and Battlefield Management Systems Integration == | == C4I, Electronic Warfare and Battlefield Management Systems Integration == | ||