a is a side view of the stabilizing mount with a friction head, and camera. The motor configuration is different than in
b is a view of a man wearing goggles which have small video screens to show the image seen by the stabilized camera.
c is a wireless remote control box with operations interfaces including a joystick, control knobs, switches and a display screen.
When the linear actuators 60 extend or retract, they cause the upper arm bracket to angle up or down in that respective axis while pivoting on the universal joint. One actuator controls the pitch and the other actuator controls the roll associated with the upper arm bracket. The central processing unit (CPU) 73 controls the actuator movements. The control system can be set to maintain the upper arm bracket at any desired angle. The most common usage is to set the angle to maintain a level horizon. This is achieved by a set of sensor signals which is supplied by a sensor package 73 containing one or a combinations of sensors which include but are not limited to level sensors, rate sensors, motion sensors, FOG sensors, an inertial measurement unit (IMU) Inertial navigation system (INS), GPS, or any other sensor device which can provide the inputs required by the CPU to move the actuators to maintain the desired position of the payload in pitch, roll and azimuth. Another angle of which the payload can be maintained would be the vector angle of apparent gravity. This is useful for when the payload is a person. In a turn a person generally does not want to be level with the horizon because the centrifugal forces tend to pull the person out of their seat such as when an airplane does a flat turn. Positioning a person along the vector of apparent gravity will keep them feeling properly balanced in a turn and during accelerations.
Y bracket 58 fits into receptacle 59 and can turn 360 degrees continuous. Set screw 61 can adjustably friction down the azimuth movement of the Y bracket and subsequently the payload weapon or secure it from movement altogether. Pin 65e can include a sensor to sense position and/or motion of the payload, herein the weapon 50. Pin 65e can also include a tightening mechanism to adjustably friction down the payload motion, or secure it altogether.
The sensor package 73 can go on the base 52, on the upper arm bracket 59, the weapon 50, on the vehicle
A battery or other power source 73 can be contained on the mount to make it independent of the vehicle's power supply, or the system can be powered from the host vehicle.
In another embodiment of
In another embodiment, a drive motor, such as found in
In another embodiment the stabilizing mount may be a gimbal assembly with two orthogonal motors, or motor gear drives which are mounted between the payload platform and the base and the control system stabilizes the payload plate based on information provided by a sensor package sensing motion of the base or of the vehicle upon which the stabilizing mount system is attached. A friction head is placed between the stabilized payload platform and the payload device and allows hands-on movement and control of the payload device by the operator while both the friction head and the payload device are continually stabilized.
In another embodiment the stabilizing device has means for moving the payload platform in up to three axes. The means for moving, be they motors, motor gear drives, linear actuators, magnetic actuators or any other means for moving, can be pressure sensitive and be back driven, allowing hands-on control, including pointing of the payload device without the use of a friction head. This can also be achieved wherein sensors on the stabilizing mount can sense the operators hand pressure or other applicable operator input, and allow the computer to control the motion of the payload platform with the stabilizing mount's own motors or means for moving, thereby using the stabilizing mount's means for moving in place of the friction head. This can be done either by commanding the motors to move the payload platform or by allowing the means for moving to be back driven or positioned by controlling the torque applied to the motors, actuators or other means for moving.
The stabilizing mount system can be scaled smaller or larger depending on the payload requirements. Small systems can be carried by a person and hand operated. This is particularly useful when carrying small sensor devices such as hand held cameras or night vision systems. Larger systems can stabilize payloads hundreds of pounds or greater while allowing hands-on control of the payload device for it's operation and/or pointing.
a is the stabilizing mount, which has mounted on it a camera or sensor 20 which provides either a bore sight image of where the weapon is pointing, or can provide surrounding imagery by use of a pointing mechanism 22, such as a pan and tilt mechanism, wherein both the camera and the pointing mechanism can be motorized and also remote controlled, subsequently allowing the camera to point in any direction regardless of where the weapon is pointing. The camera or sensor 20 can also have a 360 degree field of view, and a pan tilt mechanism may not be required. Regardless of whether the camera can be pointed manually, remote controlled or has a 360 degree view capability, it will remain stabilized the same as the weapon because it is on the stabilizing platform. The camera field of view can be depressed or elevated independently of the weapon, and which can be done manually or automated, and which will allow the camera to look at the location where a projectile fired from the weapon would hit, taking into account the curved path of the projectile. The CPU can take this information into account because it is obtaining the weapon's pointing status from sensors on the stabilizing mount which can include but are not limited to encoders, resolvers, synchros or potentiometers located on the motors, the motor drive shafts or framework angle relationship sensors (FARS) which can include proximity sensors, hall sensors or other similar types of sensors which measure the angles between the framework parts. The camera 20 has an antennae 26 for electronic transmissions which can include but are not limited to picture imagery, sensor data, command an control of the camera and stabilizing mount. The camera is controlled in pitch and azimuth by a pan tilt mechanism 22 which can be either hand operator or motorized. The weapon 50 is mounted on a mounting bracket which in this embodiment is a friction head 19 to allow an operator to friction down the motion of the weapon in pitch and azimuth. One purpose of the friction head 19 is to keep a gunner when free ginning, from having their body motions due to vehicle motion transfer to the weapon. Friction tightening the weapon will allow a setting where the gunner can move the weapon, yet the gunner's extraneous movements due to vehicle motion are not significant enough to move the weapon. The friction head sits on bracket 8 which is attached to azimuth motor 18 and which the gunner controls to move the weapon. The friction head motors can be controlled by wire or remote as shown in
The CPU, having access to all the sensor data as well as the motor and stabilization system data, can perform system analysis by comparing the image and sensor data to determine errors in the motion and movement of the payload platform or the payload device. Wherein the CPU and associated sensor computers comprise artificial intelligence, malfunctions in the system can be identified. The CPU can command the motor drives into a known frequency such as a rocking motion wherein the sensors can identify, either on command or autonomously, if the payload sensors are exhibiting the CPU commanded motion, and thereby performing its own system analysis. The CPU can then send out commands to inform the operator of a system malfunction as well as other system information. Information can also be sent out by the CPU vibrating the motors at a high frequency in which they will mimic the function of audio speakers. The motors can emit audio signals, musical notes or even understandable speech.
b. An operator 28 wears image displaying head gear. The camera or sensor 20 sends it's data or imagery, and receives data and command instructions via wired or wireless transmission, in this figure using antenna 27 for wireless. The goggles 24 can contain a display screen(s) 24 and allows viewing of the real world along with stabilized sensor imagery.
c. The control box 40, which can also be referred to as an OCU or operator control unit, contains a hard wired and/or wireless capability via antenna 45, to communicate with the stabilizing mount, camera, sensors and/or weapon. Control may include one or more of a joystick 44, control wheels, switches and other control interfaces. A display screen 41 provides the operator with one means of situational awareness which can connect to the camera 20, or other cameras or sensors which can include cameras, ladar, infrared sensors, acoustic sensors or other sensor systems. The gunner can free gun and be hands-on with the weapon and simultaneously viewing camera and sensor data. If the exterior environment becomes too hostile, the operator can move inside the vehicle and use the control box 40 to receive pictures and data to locate, identify, track and engage targets. The stabilizing mount system, the device payloads and the OCU system are preferably compatable with numerous digital interfaces including Ethernet, TCP, UDP, RCP, RS-232, RS-422, RS-485, and JAUS. (Joint Architecture for Unmanned Systems.)
The sensor system for the stabilizing mount can provide vehicle and payload platform motion data which can include vehicle motion and direction in all three axes, GPS and position data. Other data can include weapon and payload device pointing data. This data allows for situational awareness of the battlefield environment which includes location of vehicles, people and objects.
2. The chair and weapon have separate stabilizing systems the chair is attached to the upper arm bracket or receptacle and is stabilized to the vector of apparent gravity. A second stabilization head such as in
While the invention has been described in detail with reference to the preferred embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made and equivalents employed, without departing from the present invention.
Number | Date | Country | |
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60647941 | Jan 2005 | US |