46 results about "Microcomputer software" patented technology

The invention relates to an efficient remote updating method for node software of a wireless sensor network, belongs to the field of embedded remote updating of node software of wireless sensor networks and particularly relates to a remote updating method applicable to Flash type single-chip microcomputer software. The method comprises dividing a micro-programmed control unit (MCU) program storage into an updating bootstrap program storage area and a plurality of application program storage areas, and burning updating bootstrap programs and original application programs in a node read-only memory (ROM) before nodes leave factories; and inquiring node working states and application program version information and starting addresses when application programs of nodes required to be updated, and performing determining to select forced updating modes or normal updating modes to update node software. According to the efficient remote updating method, any changes in node hardware are not required, dismounting and mounting of nodes are not required, local downloaders are not required, and node software can be updated remotely through a software mode. The whole updating process is little in consumed time and high in efficiency, confidentiality and reliability, and the method is high in practicality and universality.

The present invention provides a blocking method of distance protection swing of a high voltage transmission line, the swing blocking technique in the high voltage transmission line distance protection has always been one of the focus discusses. The technical scheme of the invention has two swing blocking methods having different principles, automatically selecting one swing blocking method according the length of the protection line. When the protection judgement is a short line, periodic oscillation change rate and the position of the apparent impedance are real-time detected by a stackable counter, the dwell is relatively adjusted and the relieved, the method is not only applied to the great round covering the small round type operation characteristics, but also applied to the great quadrilateral covering the small quadrilateral type operation characteristics; when the protection judgement is a long transmission line, the swing blocking pattern fpr detecting Ucos fai and its change rate is utilized. Two patterns is automatically switched by the command set in a microcomputer software program, according to the size of the setting impedance.

The invention relates to a method for onekey backup and recovery of PC software system, which comprises the steps as follows: 1) PC hard disk partition is divided into at least two independent partitions which are FAT32 mode; 2) the relevant system adjustment and setting are conducted after the device driver and the common application software that PC needs are installed, then, boot.ini file is altered under the root directory in a main partition; 3) the files of GHOST compressed files, automatic batch commands, system configuration files, system backup batch commands and system recovery batch commands are copied under the root directory in the main partition; 4) an overall backup is carried out on the software system existing in PC; 5) a start up disk is made. The technician only needs to install, debug and protect the PC microcomputer software system according to the method of the invention; once the PC is turned over to the user, the technician does not need to drop in the user for on-site service. The method of the invention can be conveniently used by middle and old-aged users who have no computer professional maintenance knowledge.

This invention relates to a shooting analog system. It is a high accuracy shooting laser analog system. Telescope device is arranged at the collection end of image processing device. The image processing device connects to microcomputer data line. The shooting target face is imaged on the image processing device and is adjusted in focus through the telescope device. The patch of light is adjusted to the smallest. The images are transferred back to the microcomputer through the image processing device at any time. The microcomputer software processes the image and gets the position of laser. At last, the calculated point coordinates corresponding to the particular position of actual target face is presented. The ring number of shooting is displayed. This invention combines the technique of optics and high speed image. It has strong stability and has friendly human-computer interface. It avoids many proper problems of electric target. This invention can be used as advanced products for shooting exercise.

The invention relates to the technical field of single-chip microcomputers, and discloses a method and system for recovering a single-chip microcomputer software error. The method comprises the following specific steps: backing up a main program in single-chip microcomputer software, obtaining a plurality of software backups of the main program, and sorting the plurality of software backups; conserving the plurality of software backups in a storage space of the single-chip microcomputer program ; when the single-chip microcomputer software is in error, verifying the plurality of software backups of the single-chip microcomputer software and acquiring a verification result; according to the verification result, conserving a backup serial number of the software backup passing the verification into a memory space; and guiding the single-chip microcomputer software to skip to a certain software backup passing the verification according to the backup serial number, and realizing the recovery of the single-chip microcomputer software error. According to the method and system for recovering the single-chip microcomputer software error provided by the invention, by setting multiple software backups in a single-chip microcomputer program area and performing a selective guide in a plurality of software backups when the software error occurs, the single-chip microcomputer software error recovery capacity can be improved.

The invention relates to a universal type control device used for industry; a mater controller on a microcomputer and a power module, an I / O signal input / output unit, a standard communication interface unit, an adjusting and control unit, an operation keyboard and a display, etc. which are connected on the microcomputer are connected into an integrated device; the invention is characterized in that the integrated device also comprises a power-driven unit; the input of the power-driven unit is a way of three-phase alternating-current supply, and the output is two ways of three-phase alternating-current supply, the output of which is controlled by the adjusting and control unit; as the control unit and the power-driven unit of the invention are integrated, the invention can complete the direct drive to a low-power executing mechanism and indirect drive to a large-power executing mechanism; the connection of the software and the interface of the microcomputer is only changed for different control requirements. The universal type control device of the invention can improve the reliability of the production system largely, is suitable for production on scale and reduces the cost of production, maintenance and use of the control device.

The invention provides a method for controlling an electronic ballast which is matched with a HID light and has no electrolytic capacitor, the technical proposal adopts a single chip microcomputer software, to generate a multiphase high-frequency wave pulse packet, a plurality of groups of high-frequency square wave impulse with different phases are used to respectively control the and the of a multi-phase electronic power electronic switch, and to realize an active method for restraining dc bus ripple by using active power differential electric energy to substitute the traditional method of restraining the dc bus ripple through by using passive electrolytic capacitor storage charge through realizing a multi-phase high frequency APFC (active power factor Correction) method. Bu adopting the technical proposal, the reliability of the HID light electronic ballast is greatly improved, and the performance price ratio surpasses the traditional HIG light electronic ballast with electrolytic capacitor.

The invention relates to an intelligent monitoring device of a motor. The intelligent monitoring device of the motor is characterized in that a simulation thermal memory analog protection circuit of the motor is combined with an intelligent digital control circuit to respectively form three simulation analog memory circuits of different data, i.e. a simulation analog memory circuit FA1, a simulation analog memory circuit FA2 and a simulation analog memory circuit FA3, single-chip microcomputer software is used for controlling the combination and a proper thermal memory protection curve can be automatically selected according to protection characteristics of motors with different power. A multi-channel current zero-sequence voltage measurement and amplification circuit is an AC / DC (Alternating-Current to Direct-Current) single-power-supply half-wave rectification and amplification circuit which is universally used by a current multi-channel amplification circuit, a voltage amplification circuit and a zero-sequence amplification circuit and is used for converting alternating-current signals into direct-current signals, a panel can be fixed through two methods, i.e. fixing clamps or top fixing clamps, a main case is small, the displayed characters are large by adopting four-digit LED (Light Emitting Diode) nixie tubes, the overall cost is decreased, the structure is reasonable and the intelligent monitoring device of the motor is convenient to use.

The invention belongs to the technical field of single-chip microcomputer safety. The invention particularly provides an encryption protection method for single-chip microcomputer software and a storage medium. The method comprises the following steps: randomly generating multiple groups of original passwords, calculating a check value of each group of original passwords by using a hash function,performing multiple groups of hash operations on each group of original passwords to obtain HASH1, performing symmetric encryption on the HASH1 to obtain CODE1, and burning and inputting the originalpasswords, the check values and the CODE1 into a fixed storage area of a single chip microcomputer; then presetting and storing an independent UID, performing operation on the checked original password by using a plurality of hash functions to obtain HASH1, adding an independent UID to the HASH1, performing hash operation again to obtain HASH2, performing symmetric encryption on the HASH2 to obtain CODE2, and writing the CODE2 into a region position of the original password in a covering manner; and finally, randomly accessing each group of CODE1 and corresponding CODE2 data, and performing legal copy verification through calculation. According to the scheme, encryption protection of single-chip microcomputer software with an application programming function is supported, and whether software operated by a single-chip microcomputer is a legal genuine version or not is verified by using an independent UID and an original password of the single-chip microcomputer or a peripheral chip andthe like.

The invention relates to a Lin network multichannel guide installation device and an operation method thereof. The Lin network multichannel guide installation device is characterized in that function and efficiency of a bootstrap program of microcomputer software of an ECU or built-in actuator on a vehicle LIN network are improved and updated; and time and communication resources for data transmission are effectively used; communication interference among units is minimized at the same time, so that multiple software reprogramming functions of the same object are supported.

A method for achieving overcurrent protection by detecting temperature change rate of a carrier wire is characterized in that the temperature change of the carrier wire is sampled by additionally arranging a temperature sampling resistor aside the carrier wire, the sampling is analyzed to obtain a change trend of a temperature and a curve drawn by temperature change according to fixed sampling time intervals, the change rate data of the curve is analyzed, the temperature is normal if the curve is within a certain temperature range and belongs to an overcurrent protection region if the curve exceeds, the temperature rising amplitude is needed to be judged, the temperature rising change is calculated by an algorithm during the whole process to obtain overcurrent judgment, and overcurrent protection of the carrier wire is achieved. Under the condition of carrier, the temperature change rate of the carrier wire is detected to judge abnormal overcurrent of the wire by additionally arranginga thermistor aside the carrier wire; since a temperature change relative value is taken, the acquired data is not needed to be processed, so that a peripheral circuit reaches the simplest scheme; andby combining the simplest temperature detection and singlechip microcomputer software, the required circuit cost is greatly reduced, and the economic benefit is obvious.

The invention discloses a low-end single-chip microcomputer software upgrading method, which comprises the following steps: obtaining to-be-upgraded software data of a single-chip microcomputer, and backing up the current running software data of the single-chip microcomputer to an external storage medium; when backup is completed, copying the to-be-upgraded software data to a storage medium of the single-chip microcomputer; judging whether the to-be-upgraded software data in the storage medium of the single-chip microcomputer has a problem or not; and if so, recovering according to the current running software data in the external storage medium. The current running software data is backed up in the external storage medium, so that data recovery is carried out when an error occurs, and reliability and the stability of the upgrading process of the single-chip microcomputer are improved. The invention further discloses a low-end single-chip microcomputer software upgrading device, a single-chip microcomputer and a computer readable storage medium which have the above beneficial effects.

The invention discloses a method, a system, a device and a storage medium for layered software design based on a single chip microcomputer, wherein the method for layered software design based on thesingle chip microcomputer comprises the following steps: the single chip microcomputer software of each target device is divided into an application layer, a function layer, a driving isolation layerand a driving layer; an interface of the drive isolation layer of each target device is unified as a first standard interface; an interface of the function layer of each target device is unified as asecond standard interface; the second standard interface and the first standard interface of each target device are called to realize application service. The invention divides the MCU software of thetarget device into an application layer, a function layer, a driving isolation layer and a driving layer by a layered design method. At the same time, the interface of the driving isolation layer isunified into the first standard interface, and the interface of the function layer is unified into the second standard interface. Therefore, the transplantation across hardware platforms can be realized, and the portability, confidentiality, maintainability and practicability of the software code of the single chip microcomputer can be improved.

The invention relates to an automatic positioning control system of a belt pulley trolley for coal blending. The automatic positioning control system is especially suitable for immediate address on-line detection during an operational process of the belt pulley trolley in a coal blending workshop of a coking plant and can achieve the functions of positioning and automatic walking of the trolley and the like. The automatic positioning control system is composed of an above-ground cycle encoding transmission part, a cable encoding part, an antenna part, a trolley-mounted decoding part, a single chip microcomputer software calculated address part, a PLC control part and an external connection control part. The serial address detection scheme is reliable and easy to carry out, detection speeds of system addresses can be improved, a central control room upper computer can detect the addresses in real time and transmits an address signal back to the trolley when the trolley is operated beside a sensing cable, and accuracy of automatic positioning and automatic coal blending of the belt pulley trolley can be improved.

The invention relates to a low-power-consumption and immersed type thermal gas flow measuring method and device. PWM (pulse-width modulation) control power generated from a single chip microcomputer is output, the device is intermittently in a working state or a dormant state, and power consumption is reduced by shortening the working time of the device. The duty ratio and the output frequency of PWM are decided according to the dynamic response time of a sensor and the signal collection time of the single chip microcomputer. The device is supplied with power by a battery, outputs 3V voltage to a sensor circuit chip, a signal processing circuit chip and the single chip microcomputer for power supply through a voltage-reducing conversion circuit and outputs 6V voltage through a switching voltage stabilizing circuit to be connected to a sensor circuit, the sensor circuit converts a gas flow signal into a voltage signal, then the signal is input into a signal processing circuit and connected to a single chip microcomputer AD terminal after being filtered and amplified, and a flow value is output to an LCD (liquid crystal display) for display after analysis and processing by single chip microcomputer software. Through PWM control and the intermittent working mode of the device, low-power-consumption measurement of gas flow is realized, and the service time of the battery is prolonged.

Provided are a multi-channel serial port testing system and an establishing method. A serial port bridge and a multi-channel serial port testing module are added between a serial port debugger and a PC in a conventional serial port testing system, and the system comprises a master control single chip microcomputer circuit, a data bus and a channel single chip microcomputer circuit. The serial port debugger is connected with one serial port of the serial port bridge, the other serial port of the serial port bridge is connected with a serial port of the master control single chip microcomputer circuit, the master control single chip microcomputer circuit is connected with the channel single chip microcomputer circuit through a data bus, and a serial port of the channel single chip microcomputer circuit is connected with a serial port of the PC. The establishing method comprises the steps of establishing the multi-channel serial port testing module in a single chip microcomputer simulation platform, establishing program of the multi-channel serial port testing module in a single chip microcomputer software development platform and establishing the serial port bridge in the PC. By means of the system and the establishing method, a multi-channel serial port testing function, a testing instruction and testing result generation function and a testing result direct displaying function can be achieved, and the testing demands of embedded engineers based on serial ports can be met.

The invention relates to a sulfur hexafluoride breaker intelligent dived-shut brake operation mechanism. The sulfur hexafluoride breaker intelligent divide-shut brake operation mechanism is used on an actuator of a power transmission and transformation system high voltage and high power switch or other divide-shut brake switches driven by a direct 220 V motor, and belongs to a central part of the high power switch actuator. The current sulfur hexafluoride breaker divide-shut brake operation mechanism used for power transmission system is still a traditional product, and is formed by a plurality of relays and complicated interlock circuits of the relays. A temperature switch is used for detecting over-current, and a time relay is used for measuring instruction execution timeouts to protect the current sulfur hexafluoride breaker divide-shut brake operation mechanism. The composition of the current sulfur hexafluoride breaker divide-shut brake operation mechanism has the disadvantages of being complex in composition, large in volume, short in service life, and high in cost; a relay arc-pulling phenomenon exists. The sulfur hexafluoride breaker intelligent dived-shut brake operation mechanism replaces a secondary relay control circuit by a single-chip microcomputer software and hardware, and a direct current (DC) 5V electronic circuit, uses a high power electronic element to replace an electromagnetic relay. A switching power supply and a photoelectric coupling isolation technique enable the sulfur hexafluoride breaker intelligent dived-shut brake operation mechanism to have functions of intelligent judgment and control, so that the shortcomings of traditional products are overcome.

The invention discloses a control system applied to vacuum blood-collecting tube barcode labeling. The control system comprises an upper computer, a lower computer and a printer, wherein the upper computer comprises an LIS system or other system for patient scanning, an output end of the LIS system or other system for patient scanning is connected with an input end for acquiring a state of a labeling instrument through performing data packaging and establishing network connection with the labeling machine according to an SDK interface, and a detection result of labeling machine state acquisition is yes. The control system is composed of the upper computer, the lower computer and the printer, the upper computer comprises the hospital LIS / HIS system, the application environment is a WINDOWSplatform, the upper computer has an equipment task manager, the lower computer is an intelligent barcode labeling system, and the lower computer is based on single chip microcomputer software developed by a C language platform and uses hardware facilities of an ARM architecture, thus the control system does not need to change original operation habits of the medical staff nor carry out any interface switching, thereby achieving the seamless connection with a hospital system and an operating application environment.

The invention aims to provide a single-chip microcomputer equivalent replacement method of a universal information button and a communication method, being characterized by constructing a single-chipmicrocomputer communication system, configuring related parameters in single-chip microcomputer software for different types of information buttons, utilizing a single-chip microcomputer to simulate an information button 1-wireEEPROM chip, solving the problem that photoetching cannot be copied, achieving two-way communication and conversation with a host successfully, completing equivalent replacement of the information buttons, and achieving communication with a controller host.

The invention provides a potentiometer type corner sensor real-time fault discrimination circuit and discrimination method. The potentiometer type corner sensor real-time fault discrimination circuit comprises a potentiometer VR, a bias resistor Rtest and a single-chip microcomputer U, wherein the single-chip microcomputer U comprises an analog-to-digital converter ADC and an IO port end with push-pull output and high-resistance input functions; the upper end of the potentiometer VR is connected with the positive end X of the reference voltage Vref, and the lower end is connected with the reference ground D. The electric brush is connected with the positive end of the output voltage Vx. One end of the bias resistor Rtest is connected to the brush end of the potentiometer VR, and the other end of the bias resistor Rtest is connected to the node A; the power supply voltage VCC end of the single-chip microcomputer U is connected with the positive electrode end X of the reference voltage Vref, the input analog quantity Adin end is connected with the electric brush of the potentiometer VR, and the IO port end is connected with the node A. According to the method, the contact resistance of the potentiometer can be judged in each measurement period, whether the potentiometer breaks down or not is judged, sudden failure can be found immediately, fault processing is carried out, and serious consequences caused by using wrong measurement values are avoided. The operation and the judgment are both completed by single chip microcomputer software, the circuit is simple, the implementation is easy, and the reliability is high.

The invention discloses a medical anesthetic gas concentration monitoring system. The system comprises a single-chip microcomputer software system and an upper computer test software system. Hardwarecircuits of all parts are controlled by the single-chip microcomputer software system; and the single-chip microcomputer software system also controls a power switch, controls the automatic gain control of a preamplifier, carries out A / D acquisition, performs negative feedback control of an air pump and processes anesthetic gas concentration data. The single-chip microcomputer software is compiledbased on a quasi 32-bit single-chip microcomputer SIC33209 of EPSON. The upper computer test software system mainly realizes waveform display and data post-processing, upper computer software is realized in a VC+ environment, the whole software realizes detection and display of sensor signals, and on the basis, a new software algorithm is developed to identify the type of anesthetic gas and calculate the concentration.

The invention discloses a substance leakage control method, which belongs to the technical field of electronic information control. The method is such a method that controls a stepping motor through a single-chip microcomputer to accurately control the leakage amount of a certain substance and that controls the rotating speed and the rotating angle of the stepping motor through a single-chip microcomputer software program to accurately control the leakage amount of a certain substance. The advantages of the invention are as follows: the method, compared with other quantitative substance-obtaining methods or devices, uses fewer chips, so an entire device employing the method is small in size, simple in principle, exquisite in structure, low in power consumption and low in cost; and the method is extremely wide in application range, is suitable for various substances of different states (such as granular or powdery), exhibits strong functions through the single-chip microcomputer and the software thereof, enables the leakage amount of substances to be accurate, and is thus worth of being adopted and popularized.

The invention relates to a PMBUS interface power supply board card based on a GD32 single-chip microcomputer and a BMC control method thereof, and belongs to the field of power supply management. The invention provides a power supply board card function requirement and a hardware design scheme, provides an overall design process for realizing a BMC function by GD32 single chip microcomputer software, and provides a method for reading PMBUS interface power supply module data at GD32 and converting the data according to a PMBUS protocol to obtain power supply voltage, power supply current and working temperature data. Aiming at the problem of unstable I2C communication, a targeted software fault-tolerant processing method is provided in the aspects of error interruption, transmission timeout, error monitoring bits and the like. According to the invention, the hardware integration level is improved, the software design complexity is reduced, and the reliability of monitoring data is improved.

The invention discloses a Benton Visual Retention Test Device and method based on reaction. The device comprises device hardware equipment and detection device software, wherein the hardware equipment of the device comprises an upper computer, a single-chip microcomputer processor, keys, a Bluetooth module, a light source, a liquid crystal panel and a storage module. The liquid crystal panel converts the stimulation image into liquid crystal pixels, and presents a stimulation image to a tested object after receiving the irradiation of the light source; the single-chip microcomputer processor is used for receiving various instructions and controlling corresponding equipment modules to perform corresponding actions; the upper computer is an operation platform of detection device software; the detection device software comprises control software, single-chip microcomputer software and data management and analysis software. The invention also discloses a method for carrying out the Benton Visual Retention Test. According to the invention, by measuring the memory time threshold and the response time of the subject, the quantitative evaluation of the response ability of the subject is realized, and the method can be used for analyzing the rehabilitation conditions of test crowds facing different educational levels and brain impaired patients.

The invention discloses an upgrade method and system of a single chip microcomputer. The method comprises the steps of receiving a software upgrade package through the single chip microcomputer software MCU FW download board connected with a software protector Dongle; upgrading the single chip microcomputer in the Dongle according to the software upgrade package. By adopting the technical scheme, the upgrade of the single chip microcomputer in the Dongle is simple and easy to achieve, and the technical problems that the upgrade method of the single chip microcomputer in the software protector in the prior art is strenuous and the appearance of the software protector is damaged are solved.

The invention discloses a control method for a direct current motor load at the starting moment. The control method comprises the following steps: an MCU single-chip microcomputer sending out a conduction control signal to control conduction of the motor load; when the hardware circuit detects that the current is too high, the hardware circuit cutting off the power supply of the motor load and feeding back an overcurrent signal to the MCU single-chip microcomputer; after the MCU single chip microcomputer reads the overcurrent signal, the MCU single chip microcomputer cutting off the conductioncontrol signal, and after short time delay, the MCU single chip microcomputer sending out the conduction control signal again to control the motor load to be conducted when the motor does not stop rotating; when the current value is no longer greater than the set maximum current value, the hardware circuit no longer cutting off the power supply of the motor load, and the motor starting to rotatenormally. According to the invention, inductive load characteristics of the direct-current motor are used for energy storage. A software and hardware matching mode is adopted, an MCU single-chip microcomputer software program periodically and rapidly pushes the motor to rotate for multiple times, the motor load is disconnected when the load power exceeds a certain value, the motor load is controlled to be switched on again after short time delay, and the steps are repeated for multiple times until the motor load is completely pushed.