scholarly journals Design of a TFT-LCD Based Digital Automobile Instrument

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yunsong Xu ◽  
Shen Yin ◽  
Jinyong Yu ◽  
Hamid Reza Karimi

The traditional mechanical instrument lacks the ability to satisfy the market with characters of favorable compatibility, easy upgrading, and fashion. Thus the design of a TFT-LCD (thin film transistor-liquid crystal display) based automobile instrument is carried out. With a 7-inch TFT-LCD and the 32-bit microcontroller MB91F599, the instrument could process various information generated by other electronic control units (ECUs) of a vehicle and display valuable driving parameters on the 7-inch TFT-LCD. The function of aided parking is also provided by the instrument. Basic principles to be obeyed in circuits designing under on-board environment are first pointed out. Then the paper analyzes the signals processed in the automobile instrument and gives an introduction to the sampling circuits and interfaces related to these signals. Following this is the functional categorizing of the circuit modules, such as video buffer circuit, CAN bus interface circuit, and TFT-LCD drive circuit. Additionally, the external EEPROM stores information of the vehicle for history data query, and the external FLASH enables the display of high quality figures. On the whole, the accomplished automobile instrument meets the requirements of automobile instrument markets with its characters of low cost, favorable compatibility, friendly interfaces, and easy upgrading.

2010 ◽  
Vol 34-35 ◽  
pp. 1305-1308 ◽  
Author(s):  
Guo Hui Zhang ◽  
Jian Fang Sun

In this paper the system architecture of the vehicular monitoring system based on high speed CAN bus and low speed CAN Bus and SAE J1939 so as to share information between different ECUs (Electronic Control Units) has been designed. Using Visual C++ 6.0, vehicular monitoring software platform has been developed to realize vehicular runtime parameters monitoring, device controllers monitoring and malfunction monitoring. Also a case study has been given, and the results of the system application are reasonable.


2013 ◽  
Vol 694-697 ◽  
pp. 2608-2611 ◽  
Author(s):  
Yi Wang ◽  
Li Ren He

Take the microcontroller MC9S08DZ60 which integrated CAN controller for example, the design of automotive electronic control unit was introduced, meanwhile shown the hardware structure and software design processes. This circuit has characteristics of simple hardware, low cost, high reliability, real-time. It has provided a scientific basis for the development of the CAN communication electronic control unit based on MC9S08DZ60 microprocessor.


2021 ◽  
Author(s):  
Ya-Wen Lin ◽  
Wei-Hao Lee ◽  
Hsiou-Hsuan Wang ◽  
Ta-Wui Cheng ◽  
Chiao-Ying Chen ◽  
...  

Abstract The preparation of an aluminum-mesoporous humidity controlling material (Al-MHCM) by hydrothermally synthesizing a mixture of thin-film transistor liquid crystal display (TFT-LCD) waste glass and sandblasting (SB) waste was studied; additionally, the remaining residue was completely reused. The synthesized Al-MHCM was analyzed, and its moisture controlling performance along with its pore and surface structure characteristics were determined. In addition, the influence of the hydrothermal synthesis temperature and silicon-to-aluminum molar ratio on the product was also studied. The characteristic analysis results of the product confirm that the product has a typical mesoporous structure, with a specific surface area of up to 1013 m2/g, and the pore size distribution calculated by the BJH method is 3-4 nm with a pore volume of 0.97 cm3/g. The 27Al NMR analysis verifies that all the aluminum atoms of the product are in the form of tetrahedral aluminum (Td-Al) in the mesoporous Al-MHCM framework, which confirms the successful synthesis of Al-containing mesoporous MCM-41 materials. In addition, as the aluminum content increased, the water adsorption/desorption capacity of Al-MHCM also increased. Results show that when the hydrothermal synthesis temperature is 105°C, the product synthesized from a mixture with a silicon-to-aluminum molar ratio of 41.8 exhibits excellent performance (91.45 m3/ m3) in terms of the equilibrium moisture content and moisture adsorption capacity. Al-MHCM, which can be synthesized at a low cost, can be used as a humidity controlling material for adjusting the relative humidity of indoor environmental spaces. Thus, this study provides a novel method for producing Al-MHCM to use as a future humidity-controlling building material.


Computers ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 144
Author(s):  
Geoffrey Spencer ◽  
Frutuoso Mateus ◽  
Pedro Torres ◽  
Rogério Dionísio ◽  
Ricardo Martins

This paper presents the initial developments of new hardware devices targeted for CAN (Controller Area Network) bus communications in forest machines. CAN bus is a widely used protocol for communications in the automobile area. It is also applied in industrial vehicles and machines due to its robustness, simplicity, and operating flexibility. It is ideal for forestry machinery producers who need to couple their equipment to a machine that allows the transportation industry to recognize the importance of standardizing communications between tools and machines. One of the problems that producers sometimes face is a lack of flexibility in commercialized hardware modules; for example, in interfaces for sensors and actuators that guarantee scalability depending on the new functionalities required. The hardware device presented in this work is designed to overcome these limitations and provide the flexibility to standardize communications while allowing scalability in the development of new products and features. The work is being developed within the scope of the research project “SMARTCUT—Remote Diagnosis, Maintenance and Simulators for Operation Training and Maintenance of Forest Machines”, to incorporate innovative technologies in forest machines produced by the CUTPLANT S.A. It consists of an experimental system based on the PIC18F26K83 microcontroller to form a CAN node to transmit and receive digital and analog messages via CAN bus, tested and validated by the communication between different nodes. The main contribution of the paper focuses on the presentation of the development of new CAN bus electronic control units designed to enable remote communication between sensors and actuators, and the main controller of forest machines.


2013 ◽  
Vol 7 (1) ◽  
pp. 110-115 ◽  
Author(s):  
Yi Wang ◽  
Liren He

Being an excellent field-bus, CAN bus has increasingly been used in automotive electronic systems. MC9S08DZ60, an MCU of the S08D Series of Freescale company is an 8-bit universal automotive electronics controller with a CAN module. In this paper, the design of automotive electronic control unit is introduced based on the MC9S08DZ60. The hardware structure and software design processes have been shown. This circuit has characteristics of simple, low cost, high reliability and real-time. It has provided a scientific basis for the development of the CAN communication electronic control unit based on a microprocessor.


2012 ◽  
Vol 132 (6) ◽  
pp. 456-457
Author(s):  
Kazuya Uehara ◽  
Yu-Ichi Hayashi ◽  
Takaaki Mizuki ◽  
Hideaki Sone

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1099
Author(s):  
Ye-Ji Han ◽  
Se Hyeong Lee ◽  
So-Young Bak ◽  
Tae-Hee Han ◽  
Sangwoo Kim ◽  
...  

Conventional sol-gel solutions have received significant attention in thin-film transistor (TFT) manufacturing because of their advantages such as simple processing, large-scale applicability, and low cost. However, conventional sol-gel processed zinc tin oxide (ZTO) TFTs have a thermal limitation in that they require high annealing temperatures of more than 500 °C, which are incompatible with most flexible plastic substrates. In this study, to overcome the thermal limitation of conventional sol-gel processed ZTO TFTs, we demonstrated a ZTO TFT that was fabricated at low annealing temperatures of 350 °C using self-combustion. The optimized device exhibited satisfactory performance, with μsat of 4.72 cm2/V∙s, Vth of −1.28 V, SS of 0.86 V/decade, and ION/OFF of 1.70 × 106 at a low annealing temperature of 350 °C for one hour. To compare a conventional sol-gel processed ZTO TFT with the optimized device, thermogravimetric and differential thermal analyses (TG-DTA) and X-ray photoelectron spectroscopy (XPS) were implemented.


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