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227 results about "Microprocessor control unit" patented technology

The control unit of a microprocessor directs the operation of the other units by providing timing and control signals. It is the function of the microcomputer to execute programs which are stored in memory in the form of instructions and data.

Method for judging whether vehicle deviates from planned route through route region

The invention discloses a method for judging whether a vehicle deviates from a planned route through a route region. When the vehicle is running, a global positioning system (GPS) module in a mobile terminal periodically outputs position information on way-points of the vehicle to a microprocessor control unit (MCU), and the MCU calculates the distances between the way-points of the vehicle and each reference point on the route; when the distance is polled to be smaller than a threshold value reference point, the distances from the way-points to road sections determined by each adjacent point in the reference points are calculated one by one, and if one of the distances of these road sections is not more than the road section width corresponding to the road section, the way-points of the vehicle are considered to be positioned in the route area; otherwise, if all the distances of these road sections are more than the road section width corresponding to the road sections, the way-points of the vehicle are considered to be positioned outside the route area, and the vehicle is judged to deviate from the planned route. The method has a simple and convenient operation processing process, a high efficiency and equivalent accuracy, so the method is particularly suitable for mobile terminals with limited operation processing capacity.
Owner:XIAMEN YAXON NETWORKS CO LTD

Flow-changing low-temperature air-compensation air source heat pump water heater and control method thereof

The invention relates to a flow-changing low-temperature air-compensation air source heat pump water heater and a control method thereof. The water heater comprises an air source heat pump compressor set, an electromagnetic valve and an electric expansion valve connected in a working medium loop, and a microprocessor control unit and a sensor for realizing computer process control. The control method comprises the following steps of reading monitoring data of the sensor, detecting temperature and pressure and storing the temperature and pressure in a storage device, calculating a uniform superheat degree according the stored temperature and pressure, and calculating the opening increment of the expansion valve according to the uniform superheat degree as well as adjusting the opening degree of the electric expansion valve. By setting the steps of highest operating pressure controlling, defrosting and exhaust temperature controlling, the super-low temperature heat pump water heater can be ensured to run stably and efficiently under the states of different working conditions and to run stably in poor working conditions with low environment temperature and high water temperature, the hysteresis of flow adjustment is avoided, a pressure ratio is controlled in a controllable range, and the exhausting temperature can be reduced, so that the service life of the set can be guaranteed.
Owner:JIANGSU TENESUN ELECTRICAL APPLIANCE

Low pressure gas automatic sampling device and use method

The invention relates to an automatic sampling device of a low-pressure gas sample and a use method thereof; the device of the invention comprises a shell, the internal part of which is provided with an air path system and a circuit system, and is characterized in that: the air path system comprises a sample air path system and an air path system; wherein, the air path system supplies power to the reciprocating motion of an air cylinder in the sample air path system; the sample air path system comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a first T-cock, a second T-cock, a cross fan, a vacuum pump, a pressure sensor, a sampling can and a compression component; the air path system comprises a first three-way electromagnetic valve, a second three-way electromagnetic valve and an air cylinder; the compression component of the sample air path system is connected with the air cylinder of the air path system by a piston connecting rod; the circuit system comprises a single-chip microprocessor control unit and is electrically connected with the sample air path system and the air path system. The device and the method of the invention can be widely used for automatic sampling of a gas chromatograph, preventing the environment from causing pollution to the measured gas sample effectively.
Owner:PEKING UNIV

Convenient medical examination device for emergency treatment

The invention relates to a convenient medical examination device for emergency treatment, comprising a display screen, a touch screen or keys, a microprocessor control unit, an extended functional interface and a basic unit of a clamping and supporting mechanism, wherein the basic unit communicates and transmits data with an additional functional unit through the extended functional interface; the additional functional unit is provided with an electrocardiosignal acquisition unit or a B ultrasonic image acquisition unit and an optical sight glass unit combination; the electrocardiosignal acquisition unit comprises an electrocardiogram processing circuit, a lead cable and an electrode; the optical sight glass unit is a sight glass or a camera assembly for acquiring optical images; and the electrocardiosignal acquisition unit or an ultrasonic image acquisition unit shares man-machine interaction interfaces such as a control interface/a display interface, and the like of the basic unit with the optical sight glass unit. The device is suitable for occasions which require the emergency treatment and are inconvenient for carrying numerous complicated instruments, such as emergency treatment, emergency response, sickroom patrol, military first aids, grassroots outpatient service and out-calls, and the like.
Owner:顾亲晨

Insole for adjusting weight in medical intelligence test

The invention discloses an insole for adjusting weight in a medical intelligence test. The insole consists of a pressure acquisition insole and a signal processor, wherein the acquisition insole has an insole-shaped laminated structure consisting of an external packing surface layer, an upper metal plate layer and a lower metal plate layer between which a plurality of pressure sensors are clamped, an upper cortical layer and a lower cortical layer; the plurality of pressure sensors are all welded between the upper metal plate layer and the lower metal plate layer and distributed at positions of soles and heels of the insole; the upper and lower cortical layers correspondingly clamp the upper and lower metal plate layers; the external packing surface layer made of an EVA material wraps and clamps the metal plate layers and the upper and lower cortical layers, and then is sewn into a whole insole along side lines; a leading-out line of each sensor is led out of the middle of the insole and is connected with the signal processor through a joint; a data acquisition module finishes data A/D conversion and data acquisition and outputs an electric signal to an alarm and a display screen after the data is processed by a microprocessor control unit. The insole has the advantages of compact size, convenient carrying, real-time measurement, accurate measurement of the weight, and contribution to rehabilitation and training of postoperative patients by adjusting the weight according to a measured value.
Owner:BEIJING JISHUITAN HOSPITAL

Adaptive localization self-help tour guide method and system

The invention belongs to the technical field of computers, and in particular relates to an adaptive localization self-help tour guide method and system, and is used for solving the technical problems of unreasonable design and the like in the prior art. The adaptive localization self-help tour guide method comprises the following steps: A. preliminary localization; B. retrieval of a compared image; C. accurate localization; and D. multimedia tour guide. The adaptive localization self-help tour guide system comprises a MCU (microprocessor control unit), wherein, the MCU is connected with a GPS (global positioning system) module and/or an RFID (radio frequency identification) module, a camera, a register module and a multimedia player. The adaptive localization self-help tour guide method has the beneficial effects of being easy to implement, achieving wide application range, enhancing the tour flexibility and comfortability and greatly improving the tour quality; the adaptive localization self-help tour guide system has the advantages of reasonable design, simple structure, stable operating performance and complete functions; and in the method, preliminary localization and accurate localization are sequentially carried out so as to effectively improve the running speed.
Owner:ZHEJIANG UHOPE COMM TECH

360-degree panoramic parking assistance system

The invention discloses a 360-degree panoramic parking assistance system which comprises an MCU (microprocessor control unit) integrated circuit, a front camera, a rear camera, a left camera, a right camera, a 360-degree video module, a 360-degree panoramic video output circuit, a left turning detecting circuit, a right turning detecting circuit and a reversing detecting circuit. The front camera, the rear camera, the left camera and the right camera are distributed at four angles of an automobile so as to acquire front, rear, left and right image data by means of photographing; an input end of the 360-degree video module is connected with output ends of the front camera, the rear camera, the left camera and the right camera; the 360-degree panoramic video output circuit is connected with an output end of the 360-degree video module and is used for outputting 360-degree panoramic image data and front, rear, left and right one-way image data. The 360-degree panoramic parking assistance system has the advantages that rear/left/right and panoramic photographed images can be displayed via a vehicular display, so that one-way vision conditions of the automobile can be clearly seen, and the automobile can be turned safely and easily; the panoramic photographed images are small, the small images can be observed, accordingly, surrounding conditions of the automobile can be clearly seen when the automobile is turned, dead space positions can be prevented, and the automobile can be safely parked.
Owner:ZHONGSHAN GAOLANG ELECTRONICS CO LTD

Electronically controlled pressurized damper

ActiveUS20090166989A1Easy constructionSimpler and cheap constructionSpringsResilient suspensionsLow speedPositive pressure
The present invention relates to a device in a vehicle damper which comprises a damping medium-filled damper body (2), in which an element (5, 5′) forming a seal against the damper body divides the damper body into two chambers (2a, 2b). A microprocessor control unit (SU) is coupled to one or more valve and connecting arrangements (4a, 4b, 4c), comprising at least one valve and a number of flow ducts. Respective valves and flow ducts of the valve and connecting arrangement (4a, 4b, 4c) are coupled both to respective damper chambers (2a, 2b) and a pressurizing element (3) common to both of the chambers, so that even in the chamber in which a low pressure prevails there is a positive pressure acting at all times. The valve and connecting arrangements (4a, 4b) comprise a continuously electrically controlled main valve (CES), a non-return valve (SV) and one or more bleed valves (BV, 10a, 10b), the flow through the bleed valve(s) (BV, 10a, 10b) being adjustable separately from the electrically controlled main valve (CES). In the case of small strokes or slow movements the damping medium flows via the bleed valve (BV, 10a, 10b) through one or more separate leakage flow ducts. By locating the leakage flow duct(s) parallel to the valve and connecting arrangement (4a, 4b, 4c) the low-speed damping can be adjusted separately from the high-speed damping. The electrically adjustable main valve (CES) can therefore be adjusted to the correct damping characteristic whilst the damper is set up for small strokes and slow movements.
Owner:OHLINS

Automobile passive tire pressure monitoring instrument

InactiveCN104417290AThe requirements for stable and continuous power supply are metSolve energy shortageTyre measurementsMicroprocessor control unitAlternating current
The invention discloses a passive automobile tire pressure monitoring instrument based on piezoelectric self power generation. The passive automobile tire pressure monitoring instrument is characterized in that a piezoelectric energy collecting module adopts a modularized integrated unit circuit mode, a bridge rectifier circuit, a capacitor filtering energy accumulation circuit, a voltage stabilizing circuit and a DC-DC unit circuit are integrated inside the piezoelectric energy collecting module, and a power supply monitoring and managing system comprises a control switch, a power status monitoring chip and a microprocessor control unit; a piezoelectric vibration self power generation device utilizes vibration and extrusion of external environment to generate alternating current electric energy, the alternating current electric energy is subjected to rectification, filtering, voltage stabilization and DC-DC voltage change inside the piezoelectric energy collecting module, is stored by an electrical energy storage device, and then is supplied to a tire pressure sensor and a tire pressure signal transmitting module. The power supply monitoring and managing system is arranged for improving the working reliability of the system, the problems of power supply and management of the tire pressure sensor and the tire pressure signal transmitting module are effectively solved, the working reliability of the system is improved and the passive automobile tire pressure monitoring instrument has energy-saving and environment-friendly effects.
Owner:DANYANG DONGXING AUTO PARTS

Multi-machine collaboration framework based fast recorder and self-calibration and multi-machine collaboration method

The invention discloses a multi-machine collaboration framework based fast recorder and a self-calibration and multi-machine collaboration method. The fast recorder comprises four signal conditioning modules, two slave computer microprocessor control unit (MCU) modules, a dual-port random access memory (RAM) module, a host computer microprocessor control unit (MCU) module, a synchronous dynamic random access memory (SDRAM) module, a reference voltage source module, a universal serial bus (USB) interface and a display module. The two host computer MCU modules, the dual-port RAM module and the host computer MCU module constitutes a multi-machine collaboration framework of the recorder, two analog-digital converters are integrated in each slave computer MCU chip, and AD synchronous sampling clock signals are supplied to the four ADCs of two slave computers by an idle counter / timer of a host computer; by means of the multi-machine collaboration framework, the sequential serial operations of sampling, caching, transfer, storage, correction, display, upload or unloading and the like is converted into synchronous efficient parallel operations; sampling data is corrected on line according to a self-calibration polynomial generated off line, and the precision of the recorder is improved; and an input terminal of the recorder adopts analog and digital dual-filtering technology and then is combined with photoelectric isolation USB communication of an output terminal, so that the fast recorder has an excellent anti-jamming performance.
Owner:ZHEJIANG UNIV +1

Handheld type knocking detector and detection method

The invention relates to a handheld type knocking detector. The detector comprises a knocking hammer, a driving module, and a microprocessor control unit. The detector is characterized in that the knocking hammer comprises an electromagnetic coil, a ferromagnetic block, a metal frame, a metal sliding rod, a spring, and a knocking head; and the knocking head comprises a piezoelectric sensor and a hammer head. The invention also relates to a detection method. The method comprises the following steps of: sampling a standard test piece of a honeycomb composite material firstly, and collecting voltage waveforms of defect-free locations; amplifying a signal output by a piezoelectric sensor by carrying out amplification isolation, and converting a differential signal into a single-ended signal toobtain a smooth signal with good quality; obtaining a wave width W0 of the smooth signal as a debonding degree of the standard test piece; and detecting a to-be-tested piece to obtain a signal wave width W1 of the to-be-tested piece, and comparing W1 with W0, the greater the difference value, the stronger the degree of debonding, and the smaller the value, the better the quality. The handheld type knocking detector and the detection method have the advantages of being convenient and fast to detect and high in precision.
Owner:TIANJIN POLYTECHNIC UNIV
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