Based on the science and technology plan project of Shandong province, this paper designs an automatic control system based on the temperature, humidity and light intensity of the embedded agricultural greenhouse. The...
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ISBN:
(纸本)9781450366281
Based on the science and technology plan project of Shandong province, this paper designs an automatic control system based on the temperature, humidity and light intensity of the embedded agricultural greenhouse. The system uses DHT11 temperature and humidity sensor and BH1750 light intensity sensor to collect environmental information and transmit the collected data to the stm32F103ZET6 microcontroller for processing and sending out control signals. The system is simple in operation, low in cost and high in precision.
Advances in microelectronics and software allow the implementation of some control laws in embedded systems. In this work, the stm32 microcontroller is used to implement a robust fixed low-order controller for linear ...
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Advances in microelectronics and software allow the implementation of some control laws in embedded systems. In this work, the stm32 microcontroller is used to implement a robust fixed low-order controller for linear systems. The parametric uncertainty model is employed to describe the system behavior and the controller objective is to ensure, in the presence of model uncertainties and disturbances at the plant output, some specified time response performances. The controller design is expressed as a min-max non-convex optimization problem while taking into consideration uncertainties and the desired closed-loop specifications. Consequently, the use of a local optimization method to resolve such kind of problem may lead to a local solution and then, the obtained control law is not optimal. Therefore, with the purpose of obtaining an optimal solution which will be able to satisfy the desired specifications, the application of a global optimization method is recommended. The optimization method exploited in this work is the generalized geometric programming. In order to evaluate the performances of the proposed method, the implementation of a fixed low-order controller by applying the multi-model approach is also considered.
In recent years, with the technological advancements in healthcare electronics, we see a number of digital data acquisition devices that can monitor certain body parameters of a patient and alert the concerned person ...
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ISBN:
(纸本)9781467399852
In recent years, with the technological advancements in healthcare electronics, we see a number of digital data acquisition devices that can monitor certain body parameters of a patient and alert the concerned person in case of an emergency. However, if one desires to monitor multiple body parameters, they are forced to use multiple data acquisition devices. This determines the need for a platform that will allow users to configure their own digital data acquisition device and monitor their health parameters in real-time. This paper discusses the architecture and design flow of a Tele-Health Monitoring (THM) platform using effective usage of the computation power and various inbuilt peripherals of stm32 microcontroller that will allow users to have a reliable and interactive health monitoring system. The proposed platform provides a channel to interface various health sensors and data acquisition devices such that the individual himself or an authorized health provider can monitor and analyze the physical activity of an individual on regular basis. This platform finds great use in cases where patients are under transportation, homecare or frequent health checkup.
Advancements in microelectronics and software allow the use of embedded systems in the implementation of some control laws. In this work, the stm32 microcontroller is exploited in order to implement a robust fixed low...
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Advancements in microelectronics and software allow the use of embedded systems in the implementation of some control laws. In this work, the stm32 microcontroller is exploited in order to implement a robust fixed low-order controller on an electronic system. Parametric uncertainty model is employed to describe the system behavior, and the controller objective is to guarantee some time response specifications in the presence of model uncertainties. The controller design is expressed as a min-max non-convex optimization problem while taking into account the desired closed-loop performances and uncertainties. Accordingly, with the aim of obtaining an optimal solution and then an optimal control law, the application of a global optimization method is recommended. In this work, the exploited global optimization method is the generalized geometric programming. The implementation of a proportional integral controller, a proportional integral derivative controller and the fixed low-order controller shows the efficiency of the latter one.
In order to help patients effectively for upper limb rehabilitation training activities, a upper limb rehabilitation robot training system was designed which used stm32 microcontroller to collect and process signal fr...
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ISBN:
(纸本)9781467395878
In order to help patients effectively for upper limb rehabilitation training activities, a upper limb rehabilitation robot training system was designed which used stm32 microcontroller to collect and process signal from themechanical arm sensor and used serial WiFi wireless module for data transmission. The patients can carry on human-computer interaction with it for the form of games. As proved by the clinical use of hospital, the system was stable and reliable, simple operation, convenient use and good results were obtained.
This system controls the speed of the fan by the temperature collected by the Single chip microcomputer,the terminal of android can remotely control the fan by the communication protocol of Bluetooth *** system can di...
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ISBN:
(纸本)9781510813465
This system controls the speed of the fan by the temperature collected by the Single chip microcomputer,the terminal of android can remotely control the fan by the communication protocol of Bluetooth *** system can display teal-time temperature. There are three kind of wind speed can be adjusted. The System uses the digital temperature sensor DS18B20 as temperature detection, DS18B20 outputs digital signal to SMT32 ***32microcontroller collects the change of the temperature signal in the form of digital output. By controlling the three relay to implementation, high and low three different wind speed of fun.
Aiming at the problem that flight data recorder taken aircraft directly as testing signal resource in the process of development and debugging of the flight data recorder is very difficult, the flight data signal gene...
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ISBN:
(纸本)9783038351153
Aiming at the problem that flight data recorder taken aircraft directly as testing signal resource in the process of development and debugging of the flight data recorder is very difficult, the flight data signal generator based on embedded system is designed, which purpose is to simulate the status signal of aircraft and each component of aircraft during flight, providing test signal source for flight data recorder. Interactive interface was designed on PC by LabVIEW, which was used for setting parameter values of each signal;stm32 microcontroller received the parameter value and controlled each generating module to generate electric signal. All generating modules link with the Bus network, and the network will be easy to increase or decrease generating module. Experiment results show that the flight data signal generating system can simultaneously generate 138 signals, including analog, digital, synchronous, frequency, ARINC429 bus signals etc, and can work stably.
Bakalárska práca sa zaoberá návrhom konceptu batériovo napájaného miniatúrneho mikrokontrolérového systému pre CCD detekciu pätných meračov. Návrh ...
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Bakalárska práca sa zaoberá návrhom konceptu batériovo napájaného miniatúrneho mikrokontrolérového systému pre CCD detekciu pätných meračov. Návrh konceptu FLATcon systému obsahuje nevyhnutné vstupy a výstupy pre komunikáciu mikrokontroléru s periférnymi zariadeniami. Cieľom práce je detekcia stavu pätného merača vybaveného analógovým číselníkom, uloženie nasnímaného obrazu spolu s časom snímania a následné preposlanie cez RF modul. V bakalárskej práci je opísaný postup návrhu systému FLATcon, vyhotovenie a oživenie systému a testovanie periférnych zariadení.
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