Analysis of the Universal Embedded Database Model Based on TPMS

2013 ◽  
Vol 416-417 ◽  
pp. 1507-1511
Author(s):  
Jing Li ◽  
Yu Jun Zhang

In order to make the embedded system without large memory capacity and embedded operating system can use database to manage data for itself, this paper puts forward a universal model of embedded database combining the characteristic of embedded database. It studies the structure of the model and applies it to tire pressure monitoring system (TPMS). It discusses the hardware design, file frame, physical structure and logical structure of the embedded database of TPMS. Then it sets up a reliable, real-time, convenient database for TPMS. This database will manage the data which come from TPMS effectively when automobiles are running. It makes TPMS can analyze the status of driving car scientifically and provide reliable tire information.

2014 ◽  
Vol 912-914 ◽  
pp. 1283-1286
Author(s):  
Zhi Ping Zhang ◽  
Chang Xu Jiang ◽  
Rong Nian Tang

Large-scale instrumentation equipment usually runs a long time, sometimes even runs all night long. If not arrange the laboratory staff guard it, when equipment fails, it can only be allowed to develop, and in severe cases can cause the large instrument and equipment damage; To address this issue, propose a large apparatus and tele-monitoring system based on embedded system and through the HD camera collects the status of the indicator lamps of the large instrument, and through the algorithms identification of the embedded system, and the JPEG encoding and control, and using GPRS module sends images to the experimenter's mobile phone to achieve the remote monitoring of equipment; And researchers can the control the system via mobile phone to send instructions to achieve the remote control.


2012 ◽  
Vol 424-425 ◽  
pp. 395-398
Author(s):  
Chang Ze Wen

In order to make train monitoring easier, a embedded handheld device is designed to replace the dump box of LKJ2000 in this paper. The establishment of ARM-Linux development platform, code transplantation and embedded database development technology of QT and SQLite are introduced and Data acquisition, data dump, data analysis and printing are realized in the embedded system. The wireless remote communication is performed with GPRS module. The experiment results show that data acquisition and management become convenient and real-time with the embedded database and GPRS technology


Author(s):  
Jayanta Kumar Pany ◽  
R. N. Das Choudhury

This paper deals with the design & development of an embedded system, which is being used to prevent /control the theft of a vehicle. The developed instrument is an embedded system based on GSM technology. The instrument is installed in the engine of the vehicle. An interfacing GSM modem is also connected to the microcontroller to send the message to the owner’s mobile. The main objective of this instrument is to protect the vehicle from any unauthorized access, through entering a protected password and intimate the status of the same vehicle to the authorize person (owner) using Global System for Mobile (GSM) communication technology. This system deals with the concept of network security. The main concept in this design is introducing the mobile communications into the embedded system. The entire designed unit is on a single board.


2007 ◽  
pp. 5-27 ◽  
Author(s):  
J. Searle

The author claims that an institution is any collectively accepted system of rules (procedures, practices) that enable us to create institutional facts. These rules typically have the form of X counts as Y in C, where an object, person, or state of affairs X is assigned a special status, the Y status, such that the new status enables the person or object to perform functions that it could not perform solely in virtue of its physical structure, but requires as a necessary condition the assignment of the status. The creation of an institutional fact is, thus, the collective assignment of a status function. The typical point of the creation of institutional facts by assigning status functions is to create deontic powers. So typically when we assign a status function Y to some object or person X we have created a situation in which we accept that a person S who stands in the appropriate relation to X is such that (S has power (S does A)). The whole analysis then gives us a systematic set of relationships between collective intentionality, the assignment of function, the assignment of status functions, constitutive rules, institutional facts, and deontic powers.


2021 ◽  
Vol 11 (3) ◽  
pp. 1331
Author(s):  
Mohammad Hossein Same ◽  
Gabriel Gleeton ◽  
Gabriel Gandubert ◽  
Preslav Ivanov ◽  
Rene Jr Landry

By increasing the demand for radio frequency (RF) and access of hackers and spoofers to low price hardware and software defined radios (SDR), radio frequency interference (RFI) became a more frequent and serious problem. In order to increase the security of satellite communication (Satcom) and guarantee the quality of service (QoS) of end users, it is crucial to detect the RFI in the desired bandwidth and protect the receiver with a proper mitigation mechanism. Digital narrowband signals are so sensitive into the interference and because of their special power spectrum shape, it is hard to detect and eliminate the RFI from their bandwidth. Thus, a proper detector requires a high precision and smooth estimation of input signal power spectral density (PSD). By utilizing the presented power spectrum by the simplified Welch method, this article proposes a solid and effective algorithm that can find all necessary interference parameters in the frequency domain while targeting practical implantation for the embedded system with minimum complexity. The proposed detector can detect several multi narrowband interferences and estimate their center frequency, bandwidth, power, start, and end of each interference individually. To remove multiple interferences, a chain of several infinite impulse response (IIR) notch filters with multiplexers is proposed. To minimize damage to the original signal, the bandwidth of each notch is adjusted in a way that maximizes the received signal to noise ratio (SNR) by the receiver. Multiple carrier wave interferences (MCWI) is utilized as a jamming attack to the Digital Video Broadcasting-Satellite-Second Generation (DVB-S2) receiver and performance of a new detector and mitigation system is investigated and validated in both simulation and practical tests. Based on the obtained results, the proposed detector can detect a weak power interference down to −25 dB and track a hopping frequency interference with center frequency variation speed up to 3 kHz. Bit error ratio (BER) performance shows 3 dB improvement by utilizing new adaptive mitigation scenario compared to non-adaptive one. Finally, the protected DVB-S2 can receive the data with SNR close to the normal situation while it is under the attack of the MCWI jammer.


Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 469
Author(s):  
Hyun Woo Oh ◽  
Ji Kwang Kim ◽  
Gwan Beom Hwang ◽  
Seung Eun Lee

Recently, advances in technology have enabled embedded systems to be adopted for a variety of applications. Some of these applications require real-time 2D graphics processing running on limited design specifications such as low power consumption and a small area. In order to satisfy such conditions, including a specific 2D graphics accelerator in the embedded system is an effective method. This method reduces the workload of the processor in the embedded system by exploiting the accelerator. The accelerator assists the system to perform 2D graphics processing in real-time. Therefore, a variety of applications that require 2D graphics processing can be implemented with an embedded processor. In this paper, we present a 2D graphics accelerator for tiny embedded systems. The accelerator includes an optimized line-drawing operation based on Bresenham’s algorithm. The optimized operation enables the accelerator to deal with various kinds of 2D graphics processing and to perform the line-drawing instead of the system processor. Moreover, the accelerator also distributes the workload of the processor core by removing the need for the core to access the frame buffer memory. We measure the performance of the accelerator by implementing the processor, including the accelerator, on a field-programmable gate array (FPGA), and ascertaining the possibility of realization by synthesizing using the 180 nm CMOS process.


Mechatronics ◽  
2021 ◽  
Vol 74 ◽  
pp. 102492
Author(s):  
Simone Formentin ◽  
Luca Onesto ◽  
Tommaso Colombo ◽  
Alessandro Pozzato ◽  
Sergio M. Savaresi

Author(s):  
Yong Luo ◽  
Shuai-Bing Qin ◽  
Dong-Shu Wang

With the continuous development of engineering education accreditation in China, its concept has had a profound impact on the reform of various majors in higher education. Using the idea of engineering education accreditation, this paper discusses the main problems in the implementation of embedded experimental courses of electronic information majors and proposes related education reform programs. Taking the embedded system experiment course of the automation major and embedded system major of Zhengzhou University as examples, the course has carried out research on the aspects of teaching model, experimental course content, scientific assessment method, etc., and proposed corresponding improvement methods to achieve better effect. The practical operation result has proved that the embedded system experiment course of the automation major and embedded system major improved the students’ ability and met the requirements of professional accreditation.


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