Showing papers on "Serial port published in 2018"

Constrained Level Validation of Serial Peripheral Interface Protocol

Abstract: The motivation behind this paper is to give a full portrayal of a state-of-the-art SPI master/slave usage. Every single related issue, beginning from the elaboration of introductory details, till the last framework confirmation, is thoroughly examined and justified. In similarity with outline reuse approach, the concerned paper imparts high-grade intellectual properties i.e., IP’s that concerns in gathering all essential components that help in achieving presently required and modern ASIC or SoC applications using this SPI master and slave protocol. SPI is a standout among the most usually utilized serial interface protocols.

The Event-Driven Power Efficient Wireless Sensor Nodes for Monitoring of Insects and Health of Plants

Abstract: The aim of this project is to develop an efficient event-driven wireless sensor nodes based network for an effective and power efficient monitoring of plants health and larva population in a remote crop field. In this framework, an event-driven approach is proposed to detect larva and measure other system parameters like Acoustic Complexity Index (ACI), temperature, humidity and soil moisture. The sensors’ data is collected by the front end event-driven sensing node, developed with a STM32F407VG board, via a serial port. The STM32F407VG board is based on the ARM processor. In contrast to the clock driven classical sensing nodes, the devised sensing nodes only acquire and transmits the sensors data in the case of a significant change. It significantly reduces the power consuming data acquisition and transmission activity as compared to the classical solutions. It improves the proposed solution power efficiency and autonomy as compared to the counter classical ones. The data from the node is transmitted to a base station by using a wireless ZigBee interface. The base station collects data from a group of event-driven sensing nodes. This data is transmitted to the Central Processing Unit (CPU) via the USB liaison between the base station and the CPU. On CPU this data is analyzed via the MATLAB based specifically developed application. The findings are displayed and logged on the CPU. It allows the terminal user to access this and to achieve a timely interaction and cure of the intended crop field. The system parameters are adjusted in order to achieve the effective modules integration and performance. The proposed system operation is validated with an experimental setup. Results have shown a promising system realization.

A Scalable Optoelectronic Neural Probe Architecture With Self-Diagnostic Capability

Abstract: There is a growing demand for the development of new types of implantable optoelectronics to support both basic neuroscience and optogenetic treatments for neurological disorders. Target specification requirements include multi-site optical stimulation, programmable radiance profile, safe operation, and miniaturization. It is also preferable to have a simple serial interface rather than large numbers of control lines. This paper demonstrates an optrode structure comprising of a standard complementary metal-oxide-semiconductor process with 18 optical stimulation drivers. Furthermore, diagnostic sensing circuitry is incorporated to determine the long-term functionality of the photonic elements. A digital control system is incorporated to allow independent multisite control and serial communication with external control units.

Online collecting and monitoring method of energy measuring data and its system

Abstract: The invention discloses an online collecting and monitoring system of energy measuring data, which is composed of two parts, wherein the one part is a hardware platform centered by a MCU control module, and the other part is a management center platform centered by a master station; the management center platform can remotely manage the collector through a GPRS module, the hardware platform can perform data collection on an intelligent meter by 485 method and a wave carrier method and report to the management center; the online collecting and monitoring system is characterized in that the hardware platform comprises an embedded controller circuit, an RS-485 communication circuit, a GPRS communication circuit, an electricity carrier wave communication circuit, a clock circuit, a display circuit, a power circuit, a keyboard input circuit, a JTAG debugging circuit and a storage circuit; the collector adopts two communication methods totally, and two communication methods carry out the data communication by a serial port; the RS-485 communication circuit can modulate the signal to be symmetrical form so as to carry out signal transmission in the manner of balance sending; then the signal is received by a differential way; a half-duplex operation mode of master and slave structures is adopted.

Intelligent charging pile

Abstract: The invention discloses an intelligent charging pile which comprises a multimode interconnection module, a carrier wave module, a charging controller, a card reader and a display screen. The card reader is connected with the multimode interconnection module through a serial port 1, the display screen is connected with the multimode interconnection module through an LVDS (low voltage differential signaling) interface, the carrier wave module is connected with the multimode interconnection module through a serial port 2, and the charging controller is connected with the multimode interconnectionmodule through a CAN (controller area network) bus. The intelligent charging pile has the advantages that equipment is conveniently mounted and maintained by modular design, an electric energy meteron-site verification interface can be provided in the charging pile, so that electric energy meter measurement on-site detection is simpler, the charging pile can actively adapt to network load change, and charging current strength is dynamically adjusted.

Multiprotocol intelligent gateway based on narrowband Internet of Things, and implementation method thereof

Abstract: The invention relates to a multiprotocol intelligent gateway based on narrowband Internet of Things, and an implementation method thereof. The multiprotocol intelligent gateway based on narrowband Internet of Things includes a low power consumption unit and a high performance unit, wherein the low power consumption unit includes a low power consumption controller, a solar cell panel, a power management module for managing the power supply mode and the cell state information, an NB-IOT module for receiving the information from a cloud server, a LoRa module for acquiring the field LoRa node information in a local LPWAN, and a signal acquisition conditioning module; the low power consumption controller is communicated with the power management module, the NB-IOT module and the LoRa module bidirectionally; and the high performance unit includes a high performance controller, an RS485 interface module for connecting RS485 nodes, a man-machine interface module for connecting a computer serial port or a serial port liquid crystal screen, a GPS interface module, a data memory module and an ethernet interface module. The multiprotocol intelligent gateway based on narrowband Internet of Things utilizes the mode of coordination of the low power consumption unit and the high performance unit, thus effectively solving the coordination problem of low power consumption and high performance under a plurality of application scenes.

Lipsi: Probably the Smallest Processor in the World

Abstract: While research on high-performance processors is important, it is also interesting to explore processor architectures at the other end of the spectrum: tiny processor cores for auxiliary functions. While it is common to implement small circuits for such functions, such as a serial port, in dedicated hardware, usually as a state machine or a combination of communicating state machines, these functionalities may also be implemented by a small processor. In this paper, we present Lipsi, a very tiny processor to make it possible to implement classic finite state machine logic in software at a minimal cost.

Industrial field oriented intelligent Internet-of-things gateway

Abstract: The invention discloses an industrial field oriented intelligent Internet-of-things gateway which comprises an industrial PC. The industrial PC is provided with an Ethernet interface, a POWERLINK interface, a USB interface and a serial port. The industrial PC performs communication with external equipment through an OPC/OPC UA protocol. Along with economy development and manpower cost increase, amanufacturing enterprise tends to utilize automatic and intelligent equipment or system for replacing or reducing working of the man. But for truly realizing few man working and no-man working in a production process, cooperated control of producing steps of production field processing, conveying, ensuring, detecting and the like is required in a production process control system. Furthermore functions such as real-time monitoring of a field state and in-time response elimination of a field abnormity are required. The industrial field oriented intelligent Internet-of-things gateway can realizereal-time acquisition of field data, intelligent perception and real-time optimization control of the process. Furthermore the industrial field oriented intelligent Internet-of-things gateway can supply basic supporting for realizing a production process intelligent control function.

Design of a half-rate receiver for a 10Gbps automotive serial interface with 1-tap-unrolled 4-taps DFE and custom CDR algorithm

Abstract: Robust and reliable operation of high-speed serial interfaces (HSSI) in automotive environment is challenging. In this paper, we present the analysis and design of a 10Gbps receiver with 4-taps decision feedback equalizer (DFE) with 1-tap unrolled. A novel clock-and-data-recovery (CDR) algorithm is presented to consistently deal with the combined effect of Inter-Symbol Interference (ISI) and DFE on data transitions. The receiver, designed with a 28nm technology, consumes 2.05mW/Gbps and post-layout simulations are reported to show the advantage of the proposed architecture.

16 serial server on RJ45 type

Abstract: The utility model relates to an electronic service ware field, open 16 serial server on RJ45 type, this 16 serial server on RJ45 type includes: serial module, microcontroller and with the ethernet module, serial module with with the ethernet module all connect in microcontroller to realize the conversion and the transmission of serial port signal and network signal, serial module includes: RJ45 terminal and serial port expansion module, the serial port expansion module connect in microcontroller is in order to incite somebody to action microcontroller's serial interface expands to 16 interfaces. This 16 serial server on RJ45 type has overcome the serial device interface problem too little among the prior art, has realized the extension of serial ports, has also realized the conversion of serial ports to the net gape signal.

Intelligent home smart energy management system based on internet of things and QT graphic interface

Abstract: The invention discloses a smart energy management system, comprising an intelligent hardware control and an intelligent management terminal, wherein the intelligent hardware control mainly comprises an electrical controller, a communication module and an acquisition module; the acquisition module consists of a sensor and a monitor, and is used for acquiring electric power data in real time; the communication module is used for realizing communication between the terminal and hardware; the electrical controller is used for carrying out behavioral control on various electric appliances; the intelligent management terminal mainly comprises a control system, an information acquisition system, a communication system and a predicting and analyzing system; the communication system exchanges datawith a wireless fidelity (Wifi) module of the intelligent hardware control by means of serial port communication; the information acquisition system receives data of the sensor and the monitor, and stores the received data in a database; the control system forms distributed control by means of an upper computer main unit and upper computer auxiliary units; the predicting and analyzing system is used for carrying out data processing and predicting. The smart energy management system can be used across platforms, and can perform complex data processing, thus having an important significance forpower load prediction and power resource allocation.

Serial port achievement method for segmented loading of DSP program

Abstract: The invention provides a serial port achievement method for segmented loading of a DSP program and belongs to the field of embedded device software program upgrading and updating methods. The serial port achievement method comprises the steps that a program is stored in a segmented mode by modifying a CMD file and is cured in FLASH for the first time through a JTAG simulator, then only a combinedsystem needs to be connected with an upper computer through a serial interface in follow-up debugging, the updated segmented programs are written into designated positions of the FLASH through serialport loading application software to achieve partial loading of the program, and a new complete program can run after re-powering-on reset. The program loading mode of the method is simple and easy, program updating is flexible, a development cycle is greatly shortened, the function upgrading capability of the combined system is enhanced, and even the phenomenon that a DSP is suddenly powered downoccurs in the program updating process, the DSP can normally execute undeleted program parts after being powered on again. Only FLASH address fields corresponding to the undeleted program parts are erased, and unnecessary FLASH erasing time is saved.

Intelligent home control system

Abstract: The invention relates to the field of intelligent control and specifically relates to an intelligent home control system which comprises a WIFI master control total node, a liquid crystal display circuit, an intelligent socket control circuit, an indoor temperature and humidity detection node, a civil defense node, an indoor smog detection node, an infrared learning remote control node and a mobile phone client, wherein a linear power supply is utilized to supply power for the WIFI master control total node, a WIFI module can be connected into any route through a WIFI master control chip IMAG601 and can be in serial port communication with a master control node MSP430F169 single chip microcomputer, a route name and an IP address are written into liquid crystal and displayed, a master nodeis communicated with a temperature and humidity monitoring module, an infrared invasion module, a fuel gas monitoring module, an intelligent socket module and an infrared remote control child node module through a wireless communication module, current states of all child nodes are displayed by the liquid crystal, and finally, the states of all the nodes and civil defense information are displayedto a user through the mobile phone client.

Multifunctional serial port device and realization method

Abstract: The invention provides a multifunctional serial port device and a realization method. According to the method, multiple groups of serial port signals on a mainboard are connected to a programmable device, a COM function switching signal is sent to the programmable device through a BMC command or a key, the programmable device selects one group of serial port signals for decoding according to the function switching signal, and the decoded serial port signals are output to a serial port physical interface. Through cooperation of the function switching signal, the single serial port physical interface can support multiple serial port functions at the moment.

Distributed wireless access control system and application method thereof

Abstract: The invention provides a distributed wireless access control system and an application method thereof. The distributed access control system comprises a network server layer composed of a network server and a third party platform interface, an area management layer composed of a local terminal connected with the network server in a TCP/IP manner and a ZigBee coordinator connected with the local terminal by virtue of a serial port, a ZigBee wireless network transmission layer composed of multiple ZigBee terminal nodes wirelessly connected with the ZigBee coordinator by virtue of a ZigBee routerand an access control node control layer composed of an access control node controller connected with the ZigBee terminal nodes by virtue of a serial port. The invention provides a flexible, effective, convenient and intelligent access control system, access control underlying data communication is realized on the basis of a ZigBee wireless sensor network, a distributed architecture is adopted, working areas can be independently managed by virtue of a local computer or tablet computer, multiple independent working areas also can be managed by virtue of a remote server, and independent workingareas also can operate normally when a remote management system is in fault.

Hardware design on FPGA for Ethernet/SONET bridge in smart sensor system

Abstract: This paper presents a packet bridge between Ethernet and Synchronous Optical Network (SONET) with format transformation in smart sensor system. The transformed packet can be fed to the optical fiber, which proceeds with various features such as high speed, long distance, and low interference. With SONET, the packet bridge performs with high speed, long distance, low interference, and good-property in sensor system, whereas the bridge works without those features in electrical transmission. The packet bridge is designed and implemented with Verilog Hardware Description Language (HDL) and verified with FPGA development board with RS485 serial port. Measured results show that the operation frequency, throughput, data transfer rate of RS485, and data transfer rate of Ethernet are 125 MHz, 633,661,952 bps, 115,200 bps, and 1 Gbps, respectively, at the data volume of 8 bits, a RAM of 2 k bytes, and a FIFO of 1 k bytes.

Development System for Wireless Control Applied to Renewable Power Plants

Abstract: Traditionally, microcontroller units (MCU) used in control applications used to send data via serial ports or a proprietary communication system to a computer for monitoring purposes as well as to get control commands. However, this procedure presents some drawbacks since the MCU itself performs the communication tasks, using up part of the limited cycle time available for control. In this paper, a novel development system using the new dual core MCU trend is proposed and used to carry out the emulation of a whole renewable power plant. It takes advantage of two different and specialized microcontroller architectures, wherein a communication core monitors what the other core, a control DSP, is measuring, calculating, etc., and sends a large amount of data to a computer without disturbing the control cycle time. Also, since the MCU features a native Ethernet connection, the emulated power plant can even be controlled and monitored from afar.

The 2DOF controller implementation in control system with single-chip computer

Abstract: This paper deals with an application of two degrees of freedom controller (2DOF) on a controlled system. The control system is based on a single-chip microcontroller (MCU). The communication is provided by the serial interface which is between an industrial personal computer (IPC) and MCU. The controlled system is monitored and controlled by SCADA/HMI system. The PI 2DOF controller is designed for DC motor. The achieved results confirm theoretical assumption about process quality.

Vehicle controller driven by single motor for low-speed blade electric vehicle and control method thereof

Abstract: The invention discloses a vehicle controller driven by a single motor for a low-speed blade electric vehicle and a control method thereof. The vehicle controller includes a single chip microcomputer main control module, a power source, a circuit protection module, a CAN communication module, a digital signal input module, an analog signal input module, a power driving output module and a 485 communication module, wherein the power source, the circuit protection module, the CAN communication module, the digital signal input module, the analog signal input module, the power driving output moduleand the 485 communication module are connected with the single chip microcomputer main control module; LM2596-5V chips are adopted by the power source and the circuit protection module for supplyingpower to each functional module of the vehicle controller; the CAN communication module is provided with a single chip microcomputer chip MC9S12XEP100MEG; the digital signal input module is connectedwith an input pin of the single chip microcomputer chip MC9S12XEP100MEG; the analog signal input module achieves analog amount acquisition; the power driving output module is an eight-path power driving output module and connected with an output pin of the single chip microcomputer chip MC9S12XEP100MEG to output driving control signals; the 485 communication module is a one-path 485 communicationmodule, corresponding pins of the 485 communication module are connected with the input and output pins of a serial port of the single chip microcomputer chip MC9S12XEP100MEG to achieve communication.

Urban air and environment quality ground movement monitoring device based on sharing bicycle

Abstract: The utility model relates to an urban air and environment quality ground movement monitoring device based on sharing bicycle for realize the distributed environment monitoring in the wide area of cityblock, the device is equipped with a plurality ofly, and respectively with the communication of high in the clouds server, this ground movement monitoring device sets up on city sharing bicycle, including casing, setting at inside rechargeable battery and the pickup assembly who connects gradually, three routes serial ports and the router of casing, rechargeable battery be connected with pickup assembly, three routes serial ports and router respectively, the communication of pickup assembly and GPS communication unit, the router pass through GPRS communication module and high in the clouds server communication. Compared with the prior art, the utility model has the advantages of distributing type control, detection precision height, removal are prevent wind, are layed wire and retrench, the sharing communication.

Development of Background Radiation Monitoring System Based on Arduino Platform

Abstract: In the paper, the background radiation monitoring system has been developed. It has been built on the Arduino Uno microcontroller board, Geiger-Mueller counters, alphanumeric LCD module and high-voltage power supply module for counters. The system measures power of the equivalent radiation dose and accumulated dose and outputs the information via the serial port to PC, and also sends warning signals when the equivalent dose rate is exceeded.

FPGA-based universal asynchronous serial port and response method thereof

Abstract: The invention discloses an FPGA-based universal asynchronous serial port and response method thereof. The asynchronous serial port comprises a register module, a control module, a reception module, atransmission module, a reception memory and a transmission memory. The response method comprises the following steps of: after the universal asynchronous serial port detects a signal, executing a start condition; carrying out data analysis and restoration according to characteristics of a physical layer protocol configured by an interface so as to obtain reception interpretation data; detecting anapplication layer protocol configured by the interface; matching the data with the application layer protocol byte by byte; if all the pieces of data are successfully matched, returning response datato complete asynchronous serial port communication; if the matching fails, recording error information; and no matter whether the matching succeeds or not, storing received asynchronous serial port data for analysis. According to the FPGA-based universal asynchronous serial port and the response method, uniform description of asynchronous serial port communication is realized, the defects that the traditional asynchronous serial port data processing method is bad in universality, long in research period and high in cost are overcome, and the advantages of being standard, strong in reusability, short in research period and low in cost are provided.

Dflood network protocol over commercial modems

Abstract: This paper presents the integration of the underwater communication network protocol “Dflood”, of the restricted flooding family, over commercial modems from Teledyne Benthos. The network protocol was re-implemented and is running on a separate processor board, communicating with the modem over the serial port. Issues of fragmentation and packet reception errors are handled by a separate framing mechanism between the network layer and the modem. The setup was successfully tested in November 2017 as part of the DUSN (Distributed Underwater Sensor Networks) cooperation project between Canada, Norway, and Sweden. Good network layer performance was achieved in spite of most individual links having a packet delivery ratio between 0.25 and 0.75. By this work, we show an example of how network protocols from the research community can be run over commercial modems without accessing or modifying the modem firmware.

A Preliminary Study of ESD Effects on the Process Calls Tree of a Wireless Router

Abstract: A wireless router, equipped with a test port that reports the activity of active CPU threads, is used to study soft-failures caused by ESD. The test port shows the system functions being called by active threads via a 6 Mbit/sec serial interface. The effect of ESD on the activity and interaction of the threads is analyzed using graph visualization methods.

Serial-port switching device and storage equipment

Abstract: The application provides a serial-port switching device and storage equipment The serial-port switching device provided by the application is applied to the storage equipment The storage equipment includes a plurality of preset serial ports The device is used to switch each preset serial port for connection with external debugging equipment or switch each of the other preset serial ports for connection with a serial port of a baseboard management controller (BMC) chip of a specified main-board, and includes a south-bridge PCH (Platform Controller Hub) chip and a complex programmable logic device (CPLD) chip The PCH chip is connected with the CPLD chip The CPLD chip is respectively connected with the above-mentioned plurality of preset serial ports and a serial port of the external debugging equipment The PCH chip is used to generate control commands according to control-class information for the above-mentioned plurality of preset serial ports when the control-class information exists, and transmit the control commands to the CPLD chip The CPLD chip is used to enable transmission channels, which are specified by the control commands, to be conductive according to the controlcommands The serial-port switching device and the storage equipment provided by the application can improve debugging efficiency or upgrading efficiency

Intelligent service robot device of electric service hall and control method

Abstract: The invention provides an intelligent service robot device of an electric service hall and a control method. The device comprises an Android integrated machine, an STM32 single chip microcomputer, a message interaction module group, an expression module group, a recognition module group and a moving module group, wherein the Android integrated machine, the STM32 single chip microcomputer, the message interaction module group, the expression module group, the recognition module group and the moving module group are arranged on a robot body; the message interaction module group comprises a speech input module, a touch screen input module, a display screen and a sound device which are respectively connected with the Android integrated machine; the expression module group comprises a display lamp group which is connected with the STM32 single chip microcomputer; the recognition module group comprises a laser sensor and a camera which are connected with the STM32 single chip microcomputer;the moving module group comprises a power supply monitoring module, a laser radar, an ultrasonic sensor and a driving motor which are respectively connected with a Raspberry Pi controller; the Androidintegrated machine and the STM32 single chip microcomputer communicate with each other through bluetooth; the STM32 single chip microcomputer is connected with the Raspberry Pi controller through a serial port; and the Android integrated machine is connected with a cloud server. According to the intelligent service robot device, existing resources are fully used, and devices are reasonably recombined, adjusted and additionally arranged, so that the effect of greatly increasing the service quality is achieved.

Intelligent management system for transfusion

Abstract: The invention provides an intelligent management system for transfusion. The intelligent management system for transfusion comprises a monitoring module, a management control module, a wireless communication module, an upper computer and an APP terminal, wherein the input end of the management control module is connected with the output end of the monitoring module, the management control module is connected with the wireless communication module through a serial port, the management control module is in data interaction with the upper computer through the wireless communication module, and the APP terminal is in data interaction with the upper computer through the mobile network. The monitoring module is used for detecting the state information of a transfusion device in real time and sending the state information, the management control module adjusts the transfusion device according to the state information, the wireless communication module sends the state information to the uppercomputer, and upper computer or the APP terminal displays and/or broadcasts the real-time state of the transfusion device according to the state information. For the intelligent management system fortransfusion, the transfusion safety and management level can be improved, and the medical conditions can be improved.

An Event Driven Wireless Sensors Network for Monitoring of Plants Health and Larva Activities

Abstract: The aim of this project is to develop an efficient event driven wireless sensors network for an effective and power efficient monitoring of plants health and larva population in a remote crop field. In this framework, an event-driven wireless sensors network is proposed to detect larva and measure other system parameters like Acoustic Complexity Index (ACI), temperature, humidity and soil moisture. The sensors' data is collected by the front end sensing node, developed with a STM32F407VG board, via a serial port. The STM32F407VG board is based on the ARM processor. In contrast to the clock driven classical sensing nodes, the devised sensing nodes only acquire and transmits the sensors data in the case of a significant change. It significantly reduces the power consuming data acquisition and transmission activity as compared to the classical solutions. It improves the proposed solution power efficiency and autonomy as compared to the counter classical ones. The data from the node is transmitted to a base station by using a wireless ZigBee interface. The base station collects data from a group of event-driven sensing nodes. This data is transmitted to the Central Processing Unit (CPU) via the USB liaison between the base station and the CPU. On CPU this data is analyzed via the MATLAB based specifically developed application. The findings are displayed and logged on the CPU. It allows the terminal user to access this and to achieve a timely interaction and cure of the intended crop field. The system parameters are adjusted in order to achieve the effective modules integration and performance. The proposed system operation is tested with an experimental setup. Results have confirmed a proper system functionality.

Design and implementation of advanced ARM7 based biometric security system using wireless communication

Abstract: The important objective of this device is to increase an embedded device that is used for protection applications. In these systems, we are able to collect the client finger prints and mobile number at the same time as beginning the locker money owed then client most effective get right of entry to locker gadget. By placing the finger at the module while it get right of entry to automatically generates each time specific four-digit code as a message to the cell of the authorized purchaser through GSM modem connected to the microcontroller. The code obtained by way of the client have to be entered by means of urgent the keys at the keypad. After coming into it checks whether or not it is miles a valid one or now not and lets in the customer for further get right of entry to. In this project we are the uses of LPC2148 is main controller. It belongs to ARM7 structure. LPC2148 through Serial Interface. Also Biometric Module is attached to LPC2148. A 7805-3 terminal voltage regulator is used. Full wave bridge rectifier is used to convert the AC input of 230V to 12V with the help of step down transformer.