Development of a bio-inspired vision system for mobile micro-robots

In this paper, we present a new bio-inspired vision system for mobile micro-robots. The processing method takes inspiration from vision of locusts in detecting the fast approaching objects. Research suggested that locusts use wide field visual neuron called the lobula giant movement detector to respond to imminent collisions. We employed the locusts' vision mechanism to motion control of a mobile robot. The selected image processing method is implemented on a developed extension module using a low-cost and fast ARM processor. The vision module is placed on top of a micro-robot to control its trajectory and to avoid obstacles. The observed results from several performed experiments demonstrated that the developed extension module and the inspired vision system are feasible to employ as a vision module for obstacle avoidance and motion control

The Development, Design, and Testing of a Remote Sensing System to Measure Cattle Hip Height

The development of a cattle hip height sensor arose from the need to increase the efficiency, accuracy, and precision with which hip height measurements are taken. Eight infrared sensors were used to measure the hip height of cattle in a commercially available chute system. Stationary testing was conducted to evaluate the accuracy of the technology without the variability animals naturally impose. A repetition test was conducted as a part of the stationary tests that indicated there was no significant difference found in measured height with movement of the target forward, backward, and center. However, there was a 0.16 inch average absolute error between measured height with the left and right shifts of the target, which was a significant difference. A color test using four colors of felt fabric was conducted to suggest the effects of common cattle hair coat colors on the sensors\u27 measurements. The color test demonstrated that the measured distances to a black target were significantly different than those to all other colors, with the exception of grey. There were no significant differences in measured target distances when using brown, white, and the bare back of the decoy. Because black colors absorb infrared light, talcum powder was added to the black fabric as a reflector, which improved the sensing ability causing an 18.97 in. decrease in absolute error at a 35 15/16 in. distance from sensor to target. This was the only significant difference in the talcum powder test. Data collection on the live animals involved the following tests: visual vs. sensor, effects of position on sensor measurements, and effects of position on visual measurements. Talcum powder was also added to black cattle, which improved the repeatability and accuracy of the live animal tests. During live animal testing, there was no significant difference between the visual and sensor measurements. It was also found that there were significant differences in repeatability between the methods of restraining cattle to gather hip height data. Data from the visual vs. sensor comparison test was used to show the correlation between the visual and IR sensor measurements by averaging all of the measurements per animal together to represent one averaged measurement per animal this correlation provided an R2 of 0.76. The frame score plot of the averaged data provided an R2 of 0.75

Autonomous intrusion detection information system

Abstract – Implementation of security arrangements for insecure premises, for example, for temporary exhibitions or infrequent public events, usually results in substantial security personnel costs which can be potentially reduced by employing an easily installable ad hoc intrusion detection information system. In the paper we described the architecture, design and experimental results for a fully prototyped information system that utilizes ultrasonic sensors operating in the pulse echo mode for the perimeter control and ZigBee transceivers for wireless networking. The system consists of inexpensive autonomous sensor nodes with the component cost of less than £25 and a control terminal with a graphical user interface controlled by a touch screen. The nodes are programmed wirelessly to detect intrusion within any user set distance up to the operating distance of the node, and can operate unattended for days. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2877

Management System for Body Distance

Today’s the developing world shows various adventures in every field. In each field the small requirements are very essential to develop big calculations. By using different sources, we can modify it as our requirements and implement in various field. In earlier days the measurements are generally occur through measuring devices. But now a day’s digitalization as is on height. Therefore, we use a proper display unit for measurement of distance. We can use sources such as sound waves which are known as ultrasonic waves using ultrasonic sensors and convert this sound wave for the measurement of various units such as distance, speed. This technique of distance measurement using ultrasonic in air includes continuous pulse echo method, a burst of pulse is sent for transmission medium and is reflected by an object kept at specific distance. The time taken for the sound wave to propagate from transmitter to receiver is proportional to the distance of the object. In this distance measurement system, we had ultrasonic sensor HC-SR04 interfaced with arduino Uno R3. Programming and hardware part of ultrasonic sensor interfacing with arduino Uno R3

Sensor for Distance Measurement Using Pixel Grey-Level Information

An alternative method for distance measurement is presented, based on a radiometric approach to the image formation process. The proposed methodology uses images from an infrared emitting diode (IRED) to estimate the distance between the camera and the IRED. Camera output grey-level intensities are a function of the accumulated image irradiance, which is also related by inverse distance square law to the distance between the camera and the IRED. Analyzing camera-IRED distance, magnitudes that affected image grey-level intensities, and therefore accumulated image irradiance, were integrated into a differential model which was calibrated and used for distance estimation over a 200 to 600 cm range. In a preliminary model, the camera and the emitter were aligned

Development of IR-based short-range communication techniques for swarm robot applications

This paper proposes several designs for a reliable infra-red based communication techniques for swarm robotic applications. The communication system was deployed on an autonomous miniature mobile robot (AMiR), a swarm robotic platform developed earlier. In swarm applications, all participating robots must be able to communicate and share data. Hence a suitable communication medium and a reliable technique are required. This work uses infrared radiation for transmission of swarm robots messages. Infrared transmission methods such as amplitude and frequency modulations will be presented along with experimental results. Finally the effects of the modulation techniques and other parameters on collective behavior of swarm robots will be analyzed