83results about How to "Real-time monitoring speed" patented technology

The invention discloses an integrated fatigue detection and driving record system and a fatigue detection method. The integrated fatigue detection and driving record system is characterized by comprising a processor, a fatigue detection module, an alarm module, a GPS driving record module, a communication module and a storage module, wherein the processor is connected with the fatigue detection module, the alarm module, the GPS driving record module, the communication module and the storage module. According to the integrated fatigue detection and driving record system and the fatigue detection method of the invention, through the arrangement of the fatigue detection module, the system well adapts to the physical characteristics of different drivers, the accuracy of judgment is improved, and a driver is reminded through an alarm system or a vehicle is stopped in a forced manner if that the driver is fatigued is judged; and through the arrangement of the GPS driving record module, if an accident happens to a vehicle and the vehicle is stopped abnormally, a program uploads information to the cloud, and the family of the owner, an insurance company or a car service provider is reminded in time via the Internet according to the setting.

The invention relates to an array type annular electrostatic sensor and a pneumatic transmission powder measurement device and method. The array type annular electrostatic sensor comprises a tubular metal body, at least one set of first metal electrodes and at least one set of second metal electrodes are sequentially arranged on the inner circumferential face of the tubular metal body in a winding mode side by side, the first metal electrodes and the second metal electrodes are annular, and the axial width of the first metal electrodes is smaller than the axial width of the second metal electrodes. The invention further relates to the pneumatic transmission powder measurement device and method based on the sensor. By means of the method, main motion parameters of powder are monitored in real time under the condition that flowing of the powder is not interfered, the measurable range is large, the service life of the sensor is long, installation and maintenance are convenient, and the sensor can be widely used in industrial processes with the pneumatic transmission powder.

The invention discloses a chenille spinning machine for spinning chenille yarns. Firstly, knitting wools for spinning the chenille yarns wind an inverted triangle distance cutting sheet through a high-speed swiveling head, and the width of the neck portion of the distance cutting sheet depends on the length of pile yarns. Subsequently, a pressure roller is fed into a grey yarn rack, two core yarns are discharged, one of the core yarns forms a surface layer core yarn of the chenille yarns, and the other one of the core yarns forms a base layer core yarn of the chenille yarns. The knitting wools on the distance cutting sheet are pushed to blades through roller pieces, the blades move in the middle of the neck portion of the distance cutting sheet, and the knitting wools are cut by means of the blades. The cut knitting wools are sideward clamped between the surface layer core yarn and the base layer core yarn, and flaky knitting wools between the two core yarns are scattered towards all sides to form the chenille yarns through downward use of swiveling of reeling spindles. The chenille spinning machine has the advantages of being convenient to operate, high in production efficiency, large in reeling volume, safe, and reliable.

The invention discloses a device and a method for measuring the rotating speed of a rotating object by adopting an electrostatic sensor. The method is as follows: a single electrostatic sensor electrode or double electrostatic sensor electrodes is/are arranged near a detected rotating part, and is/are used for sensing the rotation information of the rotating object at the position where the electrodes are positioned, the electrode of the electrostatic sensor is connected to a microprocessor in series via a single signal conditioning unit and a signal processing unit, electrostatic signals are amplified and filtered through the conditioning unit and are sent to the microprocessor through the signal processing unit, and relevant analytical calculation is carried out on the electrostatic signals through the microprocessor so as to obtain the rotating speed of the detected rotating object finally. Compared with the conventional rotating speed measuring device, the device is simple in structure, extremely low in cost and convenient to install, is not limited by the size dimension of a detected part and not easy to influence by environmental factors, belongs to noncontact measurement and has relatively high accuracy.

The invention relates to the field of glass production machinery, in particular to a transmission control mechanism of a stirring system. The transmission control mechanism is characterized in that: the signal input end of a programmable logic controller (PLC) controlled by a computer is connected with the signal input end of a variable frequency speed regulator set, the signal input end of the variable frequency speed regulator set is connected with the signal input end of a motor, the signal output end of the motor is connected with the signal input end of a clutch, the signal output end of the clutch is connected with the signal input end of a trigger, the signal output end of the trigger is connected with the signal input end of a proximity sensor, and the signal output end of the proximity sensor is connected with the other signal input end of the PLC. The transmission control mechanism has the advantages that: 1, the proximity sensor is matched with the trigger rather than a cheaper coder to monitor the rotational speed and the steering of a stirring blade in real time; 2, the trigger is arranged in the same plane as the stirring blade to simply monitor the phase angle of the stirring blade; and 3, by adopting the PLC for measurement, display and control operation, the transmission control mechanism has high reliability and strong adaptability.

The invention relates to a full-automatic velocity-limiting anti-falling device. The full-automatic velocity-limiting anti-falling device is composed of a position velocity measuring device, an electric control device, a capturing braking device and a resetting device, a position velocity measuring sensor measures a position velocity signal and sends to a PLC controller, the PLC controller controls the electric device, a wedge-shaped slide block is shrank, a crank arm cam is driven to rotate by the shrinkage force of an extension spring, a cam rotates along with the crank arm cam to brake and rub a steel wire rope through gear transmission, and then the cage brake is realized. The full-automatic velocity-limiting anti-falling device is featured with convenience in mounting, high automatic degree, sensitive and reliable control and good brake performance.

The invention discloses a pressurizing test method for computing performance of GTX-series graphic cards and relates to the field of computer big data. The method is used for performing a pressurizing test on the computing performance of the GTX-series graphic cards. The operating system on a test machine is a Linux system, and a CUDA operation platform of NVIDIA is utilized. The method comprises the specific implementation steps that a graphic card driver and a CUDA program are installed, and the pressurizing test and a PCIE bandwidth test are computed. The method is suitable for testing performance, compatibility and heat dissipation of the graphic cards. By aid of the method, the pressurizing test of the computing performance of the GTX-series graphic cards is realized, and meanwhile fan speed, temperature and power consumption in the pressurizing process of the graphic cards can be monitored in real time.

The invention discloses an automobile magnetic and frictional compound brake based on a magnetic and frictional coupling effect. Excitation coils wind the surfaces of both a left backboard and a right backboard, through holes are formed in the surface of the left backboard, deep holes are formed in one side surface of a left friction plate, sensors are arranged in the deep holes of the left friction plate, the left backboard is fixed onto a brake caliper body, and the left friction plate is connected with the left backboard and clung to the surface of the left side of a brake disc; deep holes are also formed in the surface of a right friction plate, a through groove is formed in one side surface of the right backboard, sensors are placed in the deep holes of the right friction plate, the right friction plate is connected with the right backboard, the right backboard is fixed onto a piston body, and the piston body is fixed to the brake caliper body via a bolt; a sensor bearing body is welded on the upper surface of the brake caliper body, and a sensor is arranged in the sensor bearing body; all the sensors are electrically connected with a computer. By virtue of the positive effect on friction behavior from a magnetic field, the automobile magnetic and frictional compound brake improves the frictional braking performance, monitors the important state parameters in real time, timely feeds back and adjusts abnormal situations in the braking process, and improves the stability and reliability of a braking system.

The invention discloses a pneumatic high-speed cupping test device and system. The pneumatic high-speed cupping test device comprises a stamping device and a pressing device, wherein the stamping device comprises a cylinder barrel, a piston is arranged in the cylinder barrel, and an electromagnet capable of adsorbing the piston is fixed in the cylinder barrel; the piston is connected with one endof the piston rod, the other end of the piston rod is fixedly provided with a punch; the pressing device and the stamping device are arranged in a spaced mode, the pressing device comprises a female die frame used for placing a test piece, a pressing air cylinder is installed on the side, which is away from the stamping device, of the female die frame, and the pressing air cylinder is connected with a pressing sleeve used for applying blank holder force to the test piece. According to the invention, a stable impact speed can be provided, the blank holder force of the test piece is controllable, and the impact force and the impact speed can be monitored in real time.

The invention discloses a vehicle following safety distance intelligent alarm system, which not only can give an alarm to a driver through a voice alarm module according to the speed of the vehicle and the distance between a front vehicle and a rear vehicle, but also can monitor the speed of the front vehicle and the distance between the front vehicle and the rear vehicle and the speed of the rearvehicle and the distance between the front vehicle and the rear vehicle in real time to further give an alarm to the driver. A driver can conveniently adjust the driving speed or change lanes; a warning vehicle distance threshold value corresponding to the vehicle speed parameter is stored and updated through a vehicle distance threshold value database, and a voice warning content corresponding to the dangerous vehicle and the vehicle distance threshold value is stored and updated through the warning voice database, so that the warning diversity is improved, and real-time updating is facilitated; and a millimeter wave radar set can achieve large-area coverage of monitoring of the side area of a vehicle running at a high speed to guarantee that the side of the vehicle and the front and rear portions of the vehicle side can still be monitored when the vehicle runs at the high speed, and a driver is safer during lane changing and doubling.

The invention discloses a multi-dimensional data measuring device for a lump coal drilling process. The multi-dimensional data measuring device comprises an adsorption tank for adsorbing and desorbinglump coal, a reference tank which has the same size as the adsorption tank and is used for balancing pressure, and a high-low temperature test box for accommodating the adsorption tank and the reference tank, a temperature measuring drill rod is arranged in the adsorption tank, a non-contact magnetic coupling matching mode is adopted, the adsorption tank is driven by a driving motor to rotate, and the temperature measuring drill rod moves up and down through a propelling device; and the reference tank and the adsorption tank are respectively communicated with a gas source system for supplyinggas, a vacuum pumping system for pumping gas and a gas collecting device through a branch gas path and a main gas path. According to the method, various dimension data in the lump coal drilling process of the drill bit can be measured in different temperature environments,wherein the parameters comprise drill bit temperature change, while-drilling parameter change, lump coal gas content data, drill bit drilling process gas real-time analysis quantity and gas adsorption expansion deformation real-time monitoring data.

The invention discloses vehicle air conditioner compressor comprehensive performance testing equipment, and belongs to the technical field of vehicle air conditioner compressor assembly. The equipmentcomprises a loading and conveying mechanism, a loading and shifting mechanism, a testing and feeding mechanism and a function testing mechanism connected in sequence; a spiral electric eddy compressor is arranged between the loading and conveying mechanism and the function testing mechanism; the function testing mechanism and the corresponding spiral electric eddy compressor are closed for soundinsulation through a silencing room; and in the simulated operation process of the spiral electric eddy compressor, noise parameters of the spiral electric eddy compressor are tested. The equipment prevents manual intervention, improves the testing efficiency and the testing precision, and comprehensively guarantees the detecting effectiveness and precision; the insulation, the pressure resistance, the vibration and the noise are integrated in one equipment, so that the equipment is high in integrity, light and small; and dual quality indexes of vibration and noise of the compressor can be synchronously detected through vibration change returned by a vibration sensor.

The invention relates to a roller control system of a rotor spinning machine and belongs to the technical field of textile machinery. The roller control system comprises a controller and a stepping motor. The stepping motor drives a roller to rotate. The controller controls the stepping motor to operate. The front end of the shaft of the stepping motor is in transmission connection with a roller shaft and drives the roller shaft to rotate. The rear end of the shaft of the stepping motor axially extends out of the shell of the stepping motor to form an extension shaft. A speed measuring device is mounted on the extension shaft. The speed measuring device is in signal connection with the controller. The control program of the controller is provided with a speed comparison module and a speed regulating module. By the roller control system, the problem that yarn quality and machine operation efficiency are affected due to the fact that the rotation speed of the stepping motor and the roller of an existing rotor spinning machine cannot be fed back timely is solved, spindle position roller speed deviation change is reduced, and rotor spinning machine operation efficiency is increased.

A movement detection device and a detection method for a monorail crane belong to the electrical field, the detection device comprises a hydraulic valve group and a tension sensor, a pull rod seat isconnected with one end of the tension sensor, and the other end of the tension sensor is connected with a frame body; four bearing wheels are arranged on the frame body and slide back and forth alonga monorail track; a hydraulic oil pump and a generator are arranged on the two sides of the frame body respectively and connected with the frame body and a clamping oil cylinder. Driven rubber wheelsare installed at the input wheel ends of the hydraulic oil pump and the generator and can clamp the monorail track through contraction of the clamping oil cylinders. A hydraulic valve group and an electric control box are arranged on the lower sides of the hydraulic oil pump and the generator, and are respectively fixed on two sides of the frame body; and a generator shaft is connected with a rotary encoder, and a hydraulic oil tank is integrated below the frame body. According to the invention, the relation between the speed and the tension of the locomotive in the moving process is analyzed,and the traction force of the locomotive is detected more accurately.

The invention relates to an intelligent fault alarming high-speed ball and a network management client side system thereof, particularly aims to providing a perfect solution to 24-hour real-time monitoring and fault processing for the working state of a high-speed ball in a conventional video monitoring system. An integrate-core video signal monitoring circuit, a temperature acquiring circuit, a voltage detecting circuit, a fan monitoring circuit and an STC12LE5A08S2 as a master-control MCU (microprogrammed control unit) are arranged in the high-speed ball. The network management client side system thereof is formed by three parts including a distributing model of address of the internet of things, realization of high-speed ball control signals (pan/tilt/zoom) and network management signal multiplexing, and data acquisition. The high-speed ball with network management function is realized, and video state, temperature information, voltage value and rotating fan speed of the high-speed ball can be monitored in real time. Operating state can be uploaded to a management center in real time, and via the management center, all the front-end high-speed balls can be switched on/off and reset remotely.

The invention discloses an automatic carrying system based on AGVs and a multi-AGV cooperation method, and belongs to the technical field of carrying trolleys. The automatic carrying system comprisesan AGV carrier main body, driving wheels are arranged on a lower chassis of the AGV carrier main body, a carrying platform is arranged on the side, in the advancing direction, of the AGV carrier mainbody, and suspension wheels are arranged at the positions, corresponding to the driving wheels, of the lower portion of the AGV carrier main body. According to the arrangement, through mutual cooperation of designed structures such as a first buffer spring, a second buffer spring, a first hydraulic cylinder, a sliding block, a sliding groove, a second hydraulic cylinder, and a buffer device, the distance complementary effect is achieved, so that the stability of a carrying goods table in the pushing advancing process of the AGV carrier main body can be improved, therefore, materials or finished products on a buffer table are prevented from toppling forwards under the action of inertia, smooth operation of the AGV carrier main body is guaranteed, the material distribution efficiency of semi-finished products is improved, and meanwhile idle waste of equipment is avoided.

The invention discloses a motor service life testing tool. The motor service life testing tool comprises a base for positioning a motor, a pressing mechanism which consists of a connecting rod and a tension spring and is used for pressing the motor on the upper surface of the base, and a detecting circuit is connected to the input and the input end of the motor and used for monitoring the rotating speed and working current of the motor on real time; the fixing end of the connecting rod can be rotatably fixed on the base; one end of the tension spring is fixed and while the other end of the tension spring is fixed on the connecting rod; the free end of the connecting rod faces the base to press the motor. According to the motor service life testing tool, the motor can be reliably fixed, and the rotating speed and the working current of the motor can be monitored on real time; the working performance of the motor can be accurately analyzed according to the detection data, so that the service life of the motor can be determined; in addition, the inaccurate test caused by noise interface or falling of a welding wire due to the vibration of a motor body during testing the service life of the motor can be effectively avoided.