91 results about "Microcontroller" patented technology

The invention relates to a GSM network-based access control system, which comprises: an AVR single-chip microcomputer and a GSM embedded module. Specifically, the AVR single-chip microcomputer is a core control chip of the system, and the GSM embedded module is responsible for the GSM communication of the whole system. The AVR single-chip microcomputer is in connection with the GSM embedded module through a serial port, by which control command transmission and data receiving between the AVR single-chip microcomputer and the GSM embedded module can be conducted. The GSM embedded module collects information about a fixed-line telephone incoming call, a mobile phone incoming call or a short message of a user. By combining the wireless GSM network communication technology and voice/image processing technology, the access control system puts forward a wireless access control system based on a GSM, solves the existing access control system line problem, and substitutes the content of an original indoor unit and line. And only a mobile phone or fixed-line telephone is needed in each household, and this can be satisfied in each common family. Therefore, the installation cost is substantially reduced already. The invention also relates to an access control method.

The invention discloses an embedded type WIFI module. The embedded type WIFI module comprises a software part and a hardware part. The hardware part comprises a microcontroller chip, a WIFI chip, a program memory chip, a filter, a first crystal oscillator, a second crystal oscillator and a power switch tube, wherein the WIFI chip is connected with the microcontroller chip through data signals, the microcontroller chip is connected with the program memory chip through serial external interfaces, the WIFI chip and the microcontroller chip are connected with the power switch tube, the WIFI chip is connected with the filter and the first crystal oscillator, and the microcontroller chip is connected with the second crystal oscillator. The software part comprises a module interface management unit, an application program module, a webpage server, a miniaturized TCP/IP protocol stack, a WIFI driving module, a bottom layer hardware interface driver and a real-time operating system module, wherein the real-time operating system module is used as a framework, and the module interface management unit, the application program module, the webpage server, the miniaturized TCP/IP protocol stack, the WIFI driving module and the bottom layer hardware interface driver are integrated on the real-time operating system module. The embedded type WIFI module has the advantage of being small in size.

The present invention relates to an embedded motion control method based on on-chip system and its equipment. Said method includes the following steps: for whole SOC chip adopting modular design, for module of system adopting mode of IP nucleus, using VHDL hardware description language to implement, then on the basis of introducing test vector utilizing emulation test tool to make sequential and functional emulation, finally function-completely forming IP nucleus library, after the IP nucleuses of all the modules of said system are implemented, integrating them together so as to forma complete NC hardware device, integrally debugging to implement design of real-time internal nucleus. Said invention can implement 32-bit embedded microcontroller IP nucleus, patching plug IP nucleus and digital servo IP nucleus, patching plug IP nucleus and digital servo IP nucleus on one chip. Besides, said invention also provides its application range and its advantages.

A microcontroller capable of improving processing performance as a whole by executing different programs by a plurality of CPUs and capable of detecting abnormality for safety-required processing by evaluating results of the same processing executed by the plurality of CPUs. A plurality of processing systems including CPUs and memories are provided, data output from the CPUs in each of the processing systems is separately compressed and stored by compressors for each of the CPUs, respectively. The compressed storage data is mutually compared by a comparator, and abnormality of processing can be detected when the comparison result indicates a mismatch. Even when the timings by which the same processing results are obtained are different when the plurality of CPUs asynchronously execute the same processing, the processing results of both of them can be easily compared with each other since compression is carried out by the compressors. Moreover, since the comparison of the comparator is enabled when comparison enable is given from all the CPUs, the comparison operation result can be obtained based on the timing at which the results of compression by the plurality of compressors are determined.

A household intelligent fire-fighting early warning and escape system comprises a data acquisition system, a data system, a rescue system, an escape system and a background monitoring system. The acquisition system comprises a ZigBee module and a one-chip microcomputer, the input end of the one-chip microcomputer is connected with a power supply module, a temperature acquisition module and a smog detection module, and the output end of the one-chip microcomputer is connected with a fire extinguishing system and an acousto-optic alarm module. The data system comprises a GPRS/GSM module, the ZigBee module and the one-chip microcomputer, the rescue system comprises an exhaust passage and a fire extinguishing device fixed together with the exhaust passage, and the escape system comprises a remote management subsystem, a ZigBee wireless positioning subsystem and an escape direction indicating subsystem. The household intelligent fire-fighting early warning and escape system of the present invention is low in speed, power consumption and cost, and high in safety based on a ZigBee technology, at the same time, timely perceives any fire condition occurring in any household region, and separately alarms a control center or carries out the corresponding linkage processing, such as starting the fire extinguishing device, making escape indication, etc., according to the alarm grades.

The invention is suitable for the technical field of electronics and provides a driving circuit of optoelectronic equipment and a driving method thereof. The driving circuit comprises a first series-to-parallel conversion chip and a second series-to-parallel conversion chip, wherein the first series-to-parallel conversion chip is connected with a singlechip through a three-wire bus and is used for converting serial data output by the singlechip into parallel data and outputting the parallel data to the section control end of the optoelectronic equipment; and the second series-to-parallel conversion chip is used for converting the serial data spilled by the first series-to-parallel conversion chip into the parallel data and outputting the parallel data after the conversion to the position gate end of the optoelectronic equipment to control the data of the display section of the optoelectronic equipment. According to the invention, multiple series-to-parallel conversion chips are connected between the singlechip and a digital tube, and the serial-in-parallel-out conversion of data is completed through the series-to-parallel conversion chips, thereby achieving the control of the driving optoelectronic equipment by only using the three-end bus, reducing the occupancy rate of the I/O (input/output) port of the singlechip so that more control tasks can be completed at the limited I/O port of the singlechip, simplifying a circuit and improving the reliability of the circuit.

A method for diagnosing water-core disease of fruit based on character band of visible near-infrared spectrum includes shining light on surface of fruit, using a numbers of photosensitive transducers to collect spectrum reflectivity information of fruit internal at various character bands, removing off noise of said information, inputting information to monolithic computer through A/D converter, inputting processed information to spectrum model of water-core disease for obtaining diagnosis result of water-core disease and using display to indicate out diagnosis result.

The invention relates to a tiled grating displacement error monitoring system, which comprises a grating tiling device for mounting a tiled grating, wherein a fine adjuster platform of the grating tiling device is provided with a piezoceramics driver; two polar plates of a first digital capacitance micro-displacement sensor are oppositely arranged on positions in the horizontal direction of a coarse adjuster platform and a lower platform of the fine adjuster respectively; two polar plates of a second digital capacitance micro-displacement sensor are oppositely arranged on positions perpendicular to the lower platform and an upper platform of the fine adjuster respectively; output ends of the first and second digital capacitance micro-displacement sensors are connected with the input end of a signal sample circuit; the output end of the signal sample circuit is connected with the input end of a controller of a singlechip; the output end of the singlechip is connected with a PC through a serial port communication circuit; and the output end of the PC is connected with the control end of the piezoceramics driver through a D/A converter.

This invention relates to indoor air quality tester in monitoring field, which is aimed at VOC content as reference, which comprises the following key points: the tester comprises shell, LCD display screen, single machine and matched functional parts, wherein, the shell front side is located with display screen, keys, aim sucking window and its back is located with aim sucking window and battery case. The said single machine and the matched functional parts are connected to the air sensor, humidity sensor, thermal sensor, clock signals, key connection and with its output end connected to LCD display screen and pre-warning device.

The invention discloses an automatic control system for variable seeding and fertilization and a multifunctional planter. The multifunctional planter comprises a power system, a rack, a rotary-plowing and ditching system, a sowing system and a fertilizing system. The control system comprises ground wheels, a rotary code disc, a servo motor, a server and a single-chip microcomputer. A program of a function formula f (Q) = (n, v) of the sowing quantity (Q) of the planter versus the rotation speed n of the seeding axle and the forward speed v of the planter is written into the single-chip microcomputer. The ground wheels rows in drainage ditches so as to advance synchronously with the whole machine; the forward speed v of the ground wheels is measured in real time by using the rotary code disc; a pulse signal is sent to the single-chip microcomputer; the single-chip microcomputer calculates the rotation speed of the seeding axle according to the sowing quantity and the forward speed of the planter, and transmits a signal to the server; the server controls the output rotation speed of the direct-current servo motor by transmitting a pulse signal; and the servo motor directly drives rotation of the seeding axle. According to the invention, the overall structure is reasonable. The whole system forms a closed-loop control system and can meet the requirements of accurate and variable seeding and fertilization.

The invention discloses an infusion speed and temperature controller, comprising a main microcontroller, a clock module, a speed control module and a temperature control module; wherein, the speed control module is connected with an infusion apparatus control clamp and the main microcontroller; the temperature control module is connected with the main microcontroller. The invention can simultaneously carry out accurate speed monitoring and constant temperature treatment on infused liquid medicines and achieve the aim of safe and reliable infusion, thus being widely applied in infusion rooms, anaesthetic rooms, internal curative departments, and to treatment of cardiovascular and cerebrovascular diseases, tumor chemotherapy and extra-gastrointestinal intravenous fluid infusion, etc.

This invention discloses an encryption keyboard with dynamic display including the keyboard body linking the external device with many numbers and function keys, in which, the key value display driver circuit linking with CPU and processing dynamic definition and identification on the number keys is set. The number keys are set with display units to dynamically display number key values respectively, and the units connect the keys display driver circuits. The CPU is a SCM, and the driver circuit includes data flip-latch and display encoder. The invention uses the light digital tube to make every bit show a figure, and show different one after each restoration, thus effectively preventing stealing passwords by guessing from button positions.

This invention relates to automatic test field and to emulsion liquid concentration automatic testing system and its method, which comprises sensor, A/D conversion unit, CPU unit, and single machine and display unit. The invention is characterize by the following: the sensor comprises one 850nm infrared laser diode tube, scattering and transparent mode tester and electric meter; the sensor converts the concentration signals into relative analogue voltage signals to convert voltage signal into digital signals through A/D conversion unit to send the digital signals into single machine memory unit for data processing and displaying the results.

The invention relates to a program controlled trigger and a method. A Hall current sensor senses current of a welding machine and outputs a voltage sensing signal; a signal amplifier amplifies the voltage sensing signal; a Schmitt trigger processes the amplified voltage sensing signal and triggers to generate a square signal; a singlechip captures rising edges and falling edges of the square signal, counts, and generates a pulse signal when a counting value reaches a set value; the singlechip regulates and controls the position of a tap of a digital potentiometer; an outputting pulse circuit outputs the pulse signal to an external high-speed camera; and the digital potentiometer regulates a forward threshold value and a reverse threshold value of the Schmitt trigger according to the position of the regulated and controlled tap, and carries out program control on the threshold values and pre-amplification times. Compared with the prior art, the program controlled trigger runs stably, carries out program control on the threshold values and the pre-amplification times, and can adapt to different welding environments.

The invention relates to a vehicle window controller based on temperature difference identification, comprising a motor for driving vehicle window glass to move, a relay for controlling the motor, an internal temperature sensor (1) arranged inside the carriage, an external temperature sensor (2) arranged outside the carriage, an A/D conversion module, a microcontroller and a relay-driving circuit, wherein, the internal temperature sensor (1) and the external temperature sensor (2) are connected with the microcontroller via the A/D conversion module, and the microcontroller controls the relay by means of the relay-driving circuit. The vehicle window controller of the invention controls the relay-driving circuit according to the temperature difference between the inside and the outside of a vehicle, thus automatically regulating the movement distance of the vehicle window glass and movement distance thereof per unit time, improving the comfort of a driver in the process of driving and enhancing driving safety.

A system, computer-implemented method and computer program product for determining location of resources in a predefined region is provided. The system comprises a receiver, installed on one or more resources, to receive one or more signals, from one or more transmitters placed on predetermined locations in the predefined region and determine and forward a reference point ID corresponding to the one or more transmitters. The system further comprises a microcontroller, residing on the one or more resources, to receive the forwarded reference point ID, retrieve location coordinates corresponding to the determined reference point ID from a central server, fetch values of distance traveled by the one or more resources from an on-board diagnostic device installed on the one or more resources and detect direction in which the one or more resources are moving to determine location of the one or more resources in the predefined region in real-time.

The invention provides an electronic thermometer capable of conducting measuring at an ear lobe portion fast. The electronic thermometer comprises a power supply, a temperature collecting module, an analog-to-digital conversion chip, a microcontroller and a liquid crystal display (LCD), wherein the temperature collecting module, the analog-to-digital conversion chip, the microcontroller and the LCD display are sequentially connected. The power supply is respectively connected with the temperature collecting module, the analog-to-digital conversion chip and the microcontroller. The temperature collecting module comprises a metal temperature sensing plate and a negative temperature coefficient (NTC) thermal sensitive resistor unpackaged bare chip. The NTC thermal sensitive resistor unpackaged bare chip is connected onto the metal temperature sensing plate in fastening mode. The electronic thermometer has the advantage of being simple in structure, short in measuring time and low in cost.

The invention relates to a fast management device and a management method of a macroinstruction, wherein the fast management device is arranged on peripheral equipment of a computer and comprises a control key, a plurality of set keys and a microcontroller respectively connected with the control key and the set keys; the management method comprises the following steps: the microcontroller scans whether the control key is pressed or not, if the control key is pressed, the microcontroller scans whether any set key is pressed or not, and if any set key is pressed, a current keycode page points to a keycode page corresponding to the pressed set key; when the control key is not pressed, the microcontroller scans whether any set key is pressed or not, and if any set key is pressed, macroinstruction data which is stored in the current keycode page in advance and corresponds to the pressed set key is directly applied and/or output, thereby a switching function of the keycode page can be immediately controlled according to the set of users so as to lead to convenient operation.

The invention discloses a bus door closing prompting device, which belongs to the technical field of a bus device and comprises a control box, a door pump electromagnetic valve and a storage battery, wherein the control box, the door pump electromagnetic valve and the storage battery are arranged on a driving table, the control box comprises a bus door switch and a singlechip, the bus door closing prompting device also comprises a speed tester, a warning device and a light emitting diode (LED) lamp which are arranged on a door, the singlechip is respectively and electrically connected with the bus door switch, the door pump electromagnetic valve, the storage battery, the speed tester, the warning device and the LED lamp, the warning device is a voice warning device, and the LED lamp is a flickering LED lamp. The bus door closing prompting device has the beneficial effects that the speed tester detects the bus speed and the operation state of a bus at any time, in addition, the detected value is transmitted to the singlechip, when the detected value is not zero, and in addition, the bus door switch is not switched off, the singlechip can control the door pump electromagnetic valve to do the door closing action, the voice prompt is given out through the warning device to inform a driver of closing the back door and simultaneously prompting passengers to be careful, the LED lamp also flickers at the same time, the attention of the driver can be attracted through the visual effect, the driver is prompted to close the back door, the structure is simple, and the use is convenient.

The invention provides a single-chip microcomputer burn-writing method, device and system and a single-chip microcomputer. The method comprises the steps of: acquiring a file compiled by an principal computer; according to an address conversion strategy corresponding to a single-chip microcomputer, performing address conversion on a first address involved in the file to obtain a second address of the single-chip microcomputer; according to a data quantity of single burn-writing of the single-chip microcomputer, performing burn-writing on data corresponding to the first address in the file at the position of the second address obtained through conversion of the first address. Compared with the prior art in which a principal computer performs address conversion, the method performs address conversion according to a corresponding address conversion strategy via a single-chip microcomputer, so that a principal computer has greater universality and is applicable to single-chip microcomputers of different chip types. The technical problem of poor universality of a principal computer in the prior art is solved.

The invention discloses a remote-controlled intelligent socket comprising a signal acquisition module, a signal processing module, a single-chip microcomputer control module, a relay control module, a power module and a remote control terminal module. Data is processed by the signal acquisition and processing modules. On-off of household appliances is remotely controlled through the remote control terminal module according to a received signal. The single-chip microcomputer control module employs an STC12C5A60S2 single-chip microcomputer as a main control chip. Separate control is adopted, all socket jacks can be independently controlled and are not correlated, and control is made more convenient; the socket is of wide adaptability because of the adoption of the latest ZigBee technology; the socket has the characteristics of powerful functions, stable operation, low cost and low energy consumption, and has automatic and manual control modes; and the socket has the functions of timed powering off and real-time state display, management of electrical appliances is greatly facilitated, and the design can achieve good user experience.

The invention discloses a temperature and humidity monitoring and alarming system, which comprises a singlechip and an information acquisition module, and is characterized in that the singlechip comprises a data storage unit, a rule storage unit and a data analysis unit; the information acquisition module comprises a temperature sensor and a humidity sensor; the temperature sensor is connected with the data storage unit of the singlechip through an analog-to-digital converter; the humidity sensor is directly connected with the data storage unit of the singlechip; a keyboard system is connected with the rule storage unit of the singlechip through a man-machine conversation interface; and an alarming system and a display system are connected with the data analysis unit of the singlechip through the man-machine conversation interface. By adopting a detection system, the temperature and humidity monitoring and alarming system is simple in structure, small in size, high in instantaneity and favorable for acquiring ambient temperature and humidity in real time.