Weigh-in-Motion Device Based on Capacitive Weighing Sensor

In this paper An Acoustic Imaging Recognition System (AIRS) will be introduced which is installed on an Intelligent Robotic System and can recognize different type of Hand tools' by Dynamic pattern recognition. The dynamic pattern recognition is approached by look up table method in this case, the method can save a lot of calculation time and it is practicable. The Acoustic Imaging Recognition System (AIRS) is consist of four parts _ position control unit, pulse-echo signal processing unit, pattern recognition unit and main control unit. The position control of AIRS can rotate an angle of ±5 degree Horizental and Vertical seperately, the purpose of rotation is to find the maximum reflection intensity area, from the distance, angles and intensity of the target we can decide the characteristic of this target, of course all the decision is target, of course all the decision is processed by the main control unit. In Pulse-Echo Signal Process Unit, we utilize the correlation method, to overcome the limitation of short burst of ultrasonic, because the Correlation system can transmit large time bandwidth signals and obtain their resolution and increased intensity through pulse compression in the correlation receiver. The output of correlator is sampled and transfer into digital data by p law coding method, and this data together with delay time T, angle information eH, eV will be sent into main control unit for further analysis. The recognition process in this paper, we use dynamic look up table method, in this method at first we shall set up serval recognition pattern table and then the new pattern scanned by Transducer array will be devided into serval stages and compare with the sampling table. The comparison is implemented by dynamic programing and Markovian process. All the hardware control signals, such as optimum delay time for correlator receiver, horizental and vertical rotation angle for transducer plate, are controlled by the Main Control Unit, the Main Control Unit also handles the pattern recognition process. The distance from the target to the transducer plate is limitted by the power and beam angle of transducer elements, in this AIRS Models, we use a narrow beam transducer and it's input voltage is 50V p-p. A Robot equipped with AIRS can not only measure the distance from the target but also recognize a three dimensional image of target from the image lab of Robot memory. Indexitems, Accoustic System, Supersonic transducer, Dynamic programming, Look-up-table, Image process, pattern Recognition, Quad Tree, Quadappoach.

At present, there are more researches on the automatic driving technology of unmanned vehicles. It needs a main control unit, which enables the vehicle to automatically drive. The main control unit supports the access of various sensors and controllers. It can process data of each device and control the movement state of vehicles. Therefore, the main control unit needs to be tested repeatedly to ensure its functionality and stability. Based on Prescan simulation software and Matlab/Simulink software, this paper studies a hardware-in-the-loop (HIL) test system for testing the main control unit of unmanned vehicles according to the communication protocol and communication method of the real sensor and controller hardware devices. At the same time, this paper studies a simulation method of the main control unit, which can effectively verify the function of the test system and conduct the feasibility test of the communication protocol and communication method used.

Smart home is a house that uses information technology to monitor the environment, control the electric appliance and communicates with the outer world. Smart home is a complex technology, at the same time it is developing. A sample house environment monitor and control system that is one branch of the Smart home is addressed in this paper. The system is based on the embedded system and can act as a security guard of the home. The system can monitor the temperature, humidity, gas density, water immersion of the house and have infrared sensor to guarantees the family security. The system also has network and telephone connection to receive the owner's command and send the alert to the owner. The whole system includes a main control unit and input/output unit. The main chip of the main control unit is the S3C44B0X that is a 16/32 bits RISC processor and based on ARM7 core. In the main control unit, the use of 5 inch LCD and the touch screen provide a well user interface for handlers, the LAN/telephone interface provide the tools to communication. The muC/OS-II software core manages the whole unit work as a whole system. The input unit includes many sensors and its circuit, the information form the input unit is a base of the main control unit. The output is the action part of the main control unit it drives the alert and the switch of the electric appliance

In this study, we present the use of an internet of things (IoT) analytics platform service to mimic real-time pipeline monitoring and determine the location of damage on a pipeline. Pressure pulses, based on the principle of vibration in pipes are used for pipeline monitoring in this study. The principle of time delay between pulse arrivals at sensor positions is also adopted in this study. An Arduino and a Wi-Fi module were combined, programmed and used to produce a wireless communication device which communicates with the ThingSpeak internet of things (IoT) analytics platform. A total of five channels were created on the platform to collect data from the five sensors that were used in the experimental test rig that made use of wireless communication device. Signal data was collected once every 15 s and all the channels were updated every 2 min. ThingSpeak provided instant visualizations of data posted by the wireless communication device. Online analysis and processing of the data was performed as it came in. A second test rig was built that made use of a data logger for processing of data. The measured velocity of pulse propagation using the data logger and air as transport fluid was 355 m/s. The computed estimates of event location for the 50 measurements taken ranged between 4.243 m and 4.246 m. This had a scatter of just 3 mm against the actual measured event location of 4.23 m. The experimental results obtained showed that the performance of the wireless communication device compared satisfactorily with the data logger and is capable of detecting the location of damage on real pipelines when used for real time monitoring.Using this communication device and an analytics platform, real-time monitoring of pipelines can be carried out from any location in the world on any internet-enabled device.

The paper presents the conceptual model and the Proof of Concept of a complex mechatronic system which can executes predefined sequential motion cycles, used to create biofeedback reaction in order to improve the human neuromuscular control, the lower limbs muscles endurance and the coxo-femoral joints mobility. This mechatronic system can be an extremely useful tool in physical therapy, sports, medicine and rehabilitation. The system comprises three parts: a portable data acquisition and wireless transmission electronic module that performs complex analysis of the numerical values acquired from tactile force sensors, a stationary automation panel containing a Main Control Unit (MCU) and digital signal interfaces and a complex mechanical cinematic assembly consisting of solenoid valves, pneumatic cylinders and various mechanical parts. The numerical values of the reaction force are acquired from force signal conditioners, filtered and wireless transmitted to a stationary automation panel. The MCU electronic module is programmed to run a specific software application that ensures the proper execution of the motion cycles in order to obtain the feedback control from the human subject. This is due to the fact that the numerical signals and events issued or received by hardware components of the automation panel (digital inputs/outputs, operator panel action, wireless received data) has to be taken into consideration. This complex mechatronic system is a working progress research project.

In the fifth-generation (5G) network, dependency on the cellular platforms increases due to an increase in the number of cellular and wireless devices. In such network, a hotspot situation arises when the user density goes beyond the threshold capacity. To reduce the load of this hotspot we have proposed a traffic-aware proactive load balancing (TPLBA) strategy. This strategy used a feedback approach to monitor and control the traffic load at the cellular base station or gNodeB. When the traffic load goes beyond a certain value, the main control unit (MCU) present at the base band unit (BBU) takes preventive actions by putting one or more number of F-RRHs at the probable hotspot. These F-RRH share the traffic load of the gNB to maintain the quality-of-service (QoS) of the cellular network. To implement the proposed strategy, we have used Tu-Vienna LTE simulator. Further, the simulation results show that the proposed TPLBA algorithm significantly improves the QoS by improving UE throughput, UE spectral efficiency, and blocking probability.

For qualifying the reliability and enhancing the performance of automotive power electronic unit (PEU), a testing system based on energy-consuming platform is developed, which adopts advanced sensing and automatic control technologies to simulate the real working environment of PEU. The system mainly includes high and low voltage energy supply units, electronic load unit, dummy load units, hydraulic water cooling unit, test console unit, temperature control unit and main control unit, and experiments are implemented on the system for PEU products. Meanwhile, system capability index CGK and GR&R are 1.912 and 2.74% separately calculated by measurement system analysis (MSA) method used data obtained from a large number of tests, which indicates that the accuracy, stability and repeatability of testing system are excellent. All analysis results demonstrate that the system meets the performance indicator requirement of testing, and can provide accurate test data for the development of PEU.

The programmable logic unit (PLU) has been proposed to realize a high‐speed operation. The idea is to perform computation obtained by a static data flow scheme using the stepwise arithmetic logics distributed in the memory. This paper describes the configuration of the prototype PLU, the basic concepts of the computation and the synchronization between the PLU and the main control unit (CU). Then theoretical discussions are made on the computation time for the arithmetic and the iterative programs. It is shown that the high‐speed processing is realized by the effects of the parallel computation and of the pipelined computation, mapping many templates of a loop program on the PLU. Furthermore, the multiprogramming for the computer with PLU is proposed to utilize effectively the waiting time for the computation in the PLU. The throughput improvement is indicated by theoertical analysis, comparing the computer using PLU with the traditional sequential computer. Finally, the usefulness of the PLU is demonstrated.

A compact monopole and inverted‐F antenna design for 2.4 GHz ISM band (2400–2485 MHz) and 1.575 GHz GPS operations suitable to be embedded within a wrist‐worn wireless communication device is presented. Those antennas are fabricated on a polycarbonate and acrylonitrile‐butadiene‐styrene blend substrate with a three‐dimensional etching process for irregular plastic materials. The wrist‐worn device with and without a solid hand phantom model is evaluated. The radiation efficiency of the antennas can reach 80% for the ISM band and 63% for the GPS band without the hand phantom model. With the hand phantom model, the radiation efficiency reduces in half for both the ISM and GPS bands due to lossy materials in the phantom model. Good agreements between simulations and measurements are obtained. Moreover, the specific absorption rate of the device for the ISM band is measured and the results are much lower than the limit required by the FCC. This build‐in antenna design can be applied in the wearable wireless communication device.

Antenna architecture is proposed that uses an active FE shield and proximity sensors to provide a mechanism to control the near field energy distribution of a wireless device based on the proximity to the operator. This system has advantages over passive shields in that the antenna system is responsive to its environment, adjusting the near field energy distribution to minimize energy deposition into the operator and increasing the device's efficiency. This system solves the problem of optimizing the radiated performance of wireless devices for the numerous user modes of operation that is common with today's wireless devices.

As fast development of semiconductor industry，equipment using PLC as main control unit has been widely used. Wafer chemical etching machine based on PLC control technology has some unreasonable design, causing the low process efficiency. After electronic control system upgrade, UPH is to increase 220%, water consumption is to decrease 39% and power consumption is to decrease 69%.

The rolling mill is a kind of mechanical equipment which rolls steel ingot or billet continuously into steel. This paper selected 1150 blooming mill as research subject. In order to realize the automatic control of 1150 blooming mill, hydraulic screw-down devices and the automatic control system of hydraulic screw-down position are used, and Siemens PLC is chose as the control system's main control unit. Then industrial control technologies are used, such as DC digital controller, touch screen, photoelectric-interrupter type position sensor.

In this paper, researches have been carried out on how to improve microprocessor system reliability using fault tolerant theory and technique. A kind of three module redundant fault-tolerant microprocessor system structure has been proposed which can mask both transient fault and permanent fault. This fault-tolerant system has been realized in hardware using microcontroller 80c552 as core. The fault-tolerant system consists of three functional modules with the same hardware and a fault-masking network. The three modules are alternative in function and the fault-masking network is used for fault-detection and fault-tolerance. The fault-tolerant microprocessor system has been applied in robotization automatic drilling machine and as the main control unit which executes key tasks. Its powerful fault-tolerance and high reliability have been proved by practice.

For high-speed data acquisition and real-time transmission and processing requirements of ultrasonic measurement system, a wireless USB-based ultrasonic data transmission method was presented, combining wireless communication technology with the advantages of USB interface technology. The system consists of ultrasonic signal acquisition module, data transmission module, data acquisition module and the computer. The system uses Cypress Semiconductor's PSoC CYRF69213 chip for wireless data transmission and the chip microcomputer inside as the main control unit. This chip recorded data to the computer and displayed through USB interface. The system is a single-chip USB interface design with very few external components. The system has an USB interface advantages such supporting hot-swappable, plug and play features and the realization of wireless transmission of data without the need for layout of communications cables. The transmission system has good stability, small size, low power, high-performance features, which has a good application prospects.

Design and manufacture a multi-function verification device for electric vehicle DC charging pile. This device is suitable for all levels of measurement department, charging pile Use Company and DC charger manufacturer. The accuracy of the DC charging pile verification device is 0.05, which is used for full-function verification before charging pile installation. It is mainly composed of high-precision standard electric energy meter, high-power program-controlled DC electronic load, main control unit and various functional modules. The DC charging pile verification device adopts the latest design technology and has stable and reliable performance.