184results about How to "No human error" patented technology

The invention discloses an automatic calibration line for intelligent type low-tension current transformers, comprising a warehouse in-out device, a loading and unloading device, an automatic identification device, a transmission device, an automatic line connecting and disconnecting device, a calibration device and a sorting and labeling device, wherein the warehouse in-out device realizes the automatic warehouse in-out of the intelligent type low-tension current transformers; the material loading and unloading device realizes the automatic loading and unloading of the intelligent type low-tension current transformers; the automatic identification device realizes the automatic identification of the intelligent type low-tension current transformers; the transmission device realizes the automatic transmission of the intelligent type low-tension current transformers; the automatic line connecting and disconnecting device realizes the automatic line connection of the intelligent type low-tension current transformers for the calibration by the calibration device and also realizes the automatic line disconnection of the intelligent type low-tension current transformers; and the sortingand labeling device realizes the automatic sorting of the intelligent type low-tension current transformers. The automatic calibration line is free from manually carrying out the warehouse in-out, the transmission, the identification, the sorting, the loading and unloading and the line connection and disconnection on the intelligent type low-tension current transformer when calibrating the intelligent type low-tension current transformer, and has the advantages of no personal error, high calibration efficiency, good automation degree and capability of automatically measuring multiple transformers. The invention also discloses an automatic calibration method of the intelligent type low-tension current transformer.

The invention relates to an automatic calibration system for urea metering jet pumps, and the system comprises an urea tank, a metering jet pump, a weighing device, a container, a jet pipeline, a reversing valve, a return pipeline and a control module, wherein the container is arranged on the weighing device, and the jet pipeline is arranged at the downstream of the metering jet pump; the urea tank, the metering jet pump and the container are sequentially communicated through pipelines, the reversing valve is arranged at the downstream of the metering jet pump, the jet pipeline is communicated with the reversing valve and the container, and the return pipeline is communicated with the reversing valve and the urea tank; and the control module is electrically connected with the reversing valve, and controls the reversing action of the reversing valve. The invention also relates to a calibration method of the automatic calibration system for the urea metering jet pumps. The system disclosed by the invention is simple in structure and convenient in automatic control operation, and does not cause human errors, thereby greatly improving the calibration efficiency and the calibration precision.

The invention discloses a quick test kit of schistosomiasis and a preparation method thereof. A water absorbing pad, a pyroxylin film, an aerosol bonding pad and a sample pad are and sequentially connected in horizontal direction and fixed on a baseplate which is arranged in a kit body, and the kit body is provided with an observation window corresponding to the pyroxylin film and a sample loading hole corresponding to the sample pad. Only an one-step operation is needed when the quick test kit is used, and the quick test kit not only can detect serum and plasma samples, but also can detect awhole blood sample, thereby avoiding the step of obtaining the serum sample which can be obtained only through a centrifugation step from a blood sample, and greatly improving the screening speed. The quick test kit can also detect whether animals such as cows, horses, pigs, rabbits, and the like have the schistosomiasis or not so as to overcome the defect that different kits are needed to be prepared for detecting different species of other kits.

The invention provides a photovoltaic power station low voltage ride through detecting system in a high altitude area. The photovoltaic power station low voltage ride through detecting system comprises a power grid, a power grid side transformer, a testing unit, a photovoltaic side transformer, a tested photovoltaic unit and an automatic detecting control system. The automatic detecting control system comprises a monitoring module monitoring a tested unit, a control module achieving automatic control, and a processing module analyzing detected data. Full-automatic design is adopted in the system control, the system automatically selects the matched reactive resistance combination and simulated failure time and adjusts a tapping switch to the corresponding position to finish reactive resistance matching, selects the simulated grid fault type and switches the position of a single-phase disconnecting switch to finish grid fault type matching according to the voltage drop depth and the simulated failure type input by a background tester, the low voltage ride through test is finished, the hardware protection function and the software protection function of the whole set of system can be matched, the self-diagnosis function is complete, and the stability is good.

The invention provides a portable gas monitor for monitoring volatile organic compounds by using differential optical absorption spectroscopy, comprising a heating sampling probe, a heating sample conveyer, a heating detecting gas chamber, a light source, a spectrometer, a GPRS (general packet radio service) positioning and data transmission unit, a flow metering and exhausting device, and a computer control system; the heating sample conveyer is connected with the heating sampling probe and the heating detecting gas chamber; light from the light source enters the heating detecting gas chamber and is reflected by a DOVE prism to enter the spectrometer; a mass flow meter of the flow metering and exhausting device is connected with an exhaust nozzle of the heating detecting gas chamber, and flow and on-off of a sampling pump are automatically controlled by the computer control unit; the computer control system uses received data to calculate characteristic signals of gas absorption by using differential difference technique to obtain gas concentration; the accuracy and sensitivity of detection results can be improved through DOVE prism reflection, gas concentration correction and differential difference technique.

The invention discloses a live fish size detection device and a detection method. The live fish size detection device comprises a detection box, a frame and a controller, wherein the detection box is internally provided with a rotation shaft, and the rotation shaft is provided with a plurality of separators; the separators divide the detection box into a plurality of box lattices, one end of each box lattice is provided with an inlet door and a first switch, and the other end of each box lattice is provided with a baffle; a first motor is arranged outside the detection box, and the rotation shaft passes through the baffles to be connected with the first motor; each box lattice is internally provided with a fish attracting device, a first ultrasonic sensor, a second ultrasonic sensor and a binocular camera; the side wall of the detection box is provided with an outlet door and a second switch; and the controller is electrically connected with each first switch, the first motor, each fish attracting device, each first ultrasonic sensor, each second ultrasonic sensor, each binocular camera and the second switch respectively. Zero damages are caused to the fish body, human errors do not exist, and the measurement data are accurate.

The invention discloses an automatic coal blending system which is used for blending a first kind coal and a second kind of coal with different burning points into blended coal with a required burning point in accordance with a preset proportion. The automatic coal blending system comprises a weighing unit, a blending unit and a control unit, wherein the weighing unit comprises two weighing mechanisms which are respectively used for weighing the coal; each weighing mechanism comprises a containing hopper and a weighing hopper, wherein the containing hoppers are used for containing the coal, and the weighing hoppers are used for weighing the coal; a discharge port of each weighing hopper extends to a corresponding transmission mechanism; a discharge mechanism and a weighing device are arranged on each weighing hopper; each weighing device is in signal connection with the control unit; and a driving charge motor is in signal connection with each control unit. The required coal is accurately weighed by the weighing devices composed of weighing sensors, so that the quantity of the coal in the weighing hopper can be monitored in real time, and the excessive problem does not easily occur. The whole system is electrically and mechanically controlled, therefore, the automatic coal blending system has the advantages of more accuracy and high efficiency, the labor intensity of workers is reduced, a large scale can be realized, and the requirements of all fields can be satisfied.

The invention relates to an automatic lifting and locking device and method for an offshore floating platform. Ascending and descending of the floating platform depends on the combined action of buoyancy and gravity of the floating platform, and an automatic unlocking and locking mechanism is arranged between the floating platform and a supporting column, so it is guaranteed that the floating platform fluctuates along with tides, and it is also guaranteed that the floating platform can bear transverse and longitudinal stress. The automatic unlocking and locking mechanism is composed of a sliding pin, a push rod, a push disc, a floating ball, a swing rod, an idler wheel, a floating platform and a supporting column, wherein the push rod and the push disc are connected with the sliding pin; the swing rod and the idler wheel are connected with the floating ball; horizontal holes are arranged in the floating platform and the supporting column; the idler wheel is pressed on the push disc; the swing rod is fixed to the floating platform through a connecting frame; compression springs and ejector rods are arranged in a plurality of horizontal holes in the supporting column; and the ejectorrods abut against the sliding pin. By means of the automatic lifting and locking device, the floating platform can ascend and descend along with changes of the sea level along with tides, meanwhile,the floating platform can be automatically locked and limited, and it is guaranteed that the floating platform bears natural force and engineering force. Compared with the prior art, the device is simple in structure, safe, reliable and free of energy consumption.

A system for automatic partition of an intelligent substation and optimization of a virtual local area network comprises a data importing module, a generating module, a checking module and a performance evaluation module, wherein the data importing module, the generating module, the checking module and the performance evaluation module are sequentially connected in the importing data flow direction, the generating module directly transmits data to the performance evaluation module and the checking module, the performance evaluation module further feeds the data back to the generating module, and the performance evaluation module outputs the data finally. The invention further relates to a method for automatic partition of the intelligent substation and optimization of the VLAN. The system and the method have the uniform partition principle, are reasonable and distinct in partition, can conduct conversion check, will not produce human errors, and reduce workload of manual configuration of the VLAN of the intelligent substation.

The invention discloses a vehicle turning circle track test system and method used for testing the turning circle passing of an automobile, a trailer, and an automobile train. A rotatable column is arranged, and an angle sensor, a distance measurement sensor and an image acquisition device are fixed to the column and are connected to a computer. A vehicle to be tested is provided with an image and/or distance collection mark, a distance measurement sensor mark position or an initial distance between a vehicle wheel shaft head and a wheel edge in a turning circle are recorded and are used for computer software data correction. In a test, the vehicle to be tested walks along the periphery of the turning circle, the image acquisition device acquires the mark on the vehicle in many times circularly, the angle and distance of the mark are synchronously measured in each time, then all angle and distance data are fitted, the track of the mark is formed, and the diameter of the turning circle is calculated. The system and the method have the advantages of simple operation and a small error, a track is formed in the computer, and the environment is not polluted during a collection process.

The invention provides a concrete slump controlling method and a concrete slump controlling system of a mixing station. By using rigorous data acquisition, the influence on the whole data average value by individual abnormal data is avoided; according to host current and a corresponding relation between the host current and the concrete slump degree, the concrete slump degree is accurately acquired; moreover, an operation of an experienced operator is not needed, and personal errors are eliminated, so that the acquisition process of the slump degree is simple and accurate; finally, water addition or reduction parameters are calculated on the basis of the slump degree of the concrete in the acquired stirring device and construction site requirement slump degree, so that the accurate control of the concrete slump degree of the mixing station is realized.

A triple coordinated type reducing sphere curvature measuring apparatus and measuring methods which are used to measure the curvature radius and arc profile tolerance of sphere elements are disclosed. The triple coordinated type reducing sphere curvature measuring apparatus includes grating ruler, stepping motor, SCM, display, ball feed screw, slide bar, guide bar, slider, brace, workbench and base. The measuring methods are that the first bilge is detected at some initial position of ring radius, then the ring radius is changed to another position, the second bilge is detected; at last the surface curvature radius of sphere elements to be detected and current measurement accuracy can be calculated by SCM based on the measure equation. Further, it is characterized in that measurement result can be instantaneous displayed, measurement can be continuous, measurement accuracy is high, it don't need flat crystal cyclical test.

A queuing method and system related to controlling for actively recognizing VIP clients are provided, which comprise a queuing host, a users' data terminal and a wireless handheld device. The queuing host obtains the users' data from the users' data terminal according to the information on RFID label card, by which the clients' queuing is managed. The system is characterized in comprising also at least one RFID label card and the card reader. The card reader reads the card information on RFID label and sends it to the queuing host, by which the queuing and users' data sent by the queuing host will be displayed onto the wireless handheld device. The recognition method is that firstly, the card reader automatically identifies the label, reads the card information and then sends it to the queuing host; secondly, the queuing host obtains the users' data from the users' data terminal, generates the queuing information and finally sends them to the wireless handheld device through wireless channels; thirdly, the queuing information and users' data are displayed on the wireless handheld device. The invention has the advantages of easy operation, high reliability, fast speed and strong practicality.

The invention provides a 3D hand-eye calibration method and device for a mobile robot. The method comprises the following steps: S1, calibrating the view finding range of a camera to cover all degrees of freedom of the mobile robot; S2, recording point cloud data of a calibration ball held by the mobile robot in a camera coordinate system and a robot pose corresponding to the calibration ball in a current robot coordinate system to form n groups of point cloud data; S3, extracting the point cloud of the spherical surface of the calibration ball, and determining the coordinate value of the center point of the calibration ball in the camera coordinate system in each group of point cloud data by adopting a least square fitting algorithm; S4, solving offset and a hand-eye calibration matrix according to a first algorithm according to the pose of the robot and the coordinates of the center point of the corresponding calibration ball; and S5, converting the hand-eye calibration matrix into an Euler angle form, and taking a hand-eye calibration matrix result as an initial value of nonlinear optimization; and respectively calculating a hand-eye calibration matrix and a difference value between the offset and the truth value according to a second algorithm, and correcting the hand-eye calibration matrix according to the difference value. Therefore, the adaptation requirement for the degree of freedom of the robot is lowered, and the universality is improved.

The invention discloses a precision test device of an electric energy quality monitor. The precision test device comprises a standard source, standard equipment, a detected equipment, a network switchboard, a first server and a second server, wherein the standard equipment and the detected equipment are respectively connected with the standard source; the standard equipment, the detected equipment, the first server and the second server are connected through the network switchboard to form a local area network; and the standard source is used for generating a signal to be detected, the standard equipment and the detected equipment are used for respectively acquiring the signal to be detected to respectively generate data packets and upload the respective data packet onto the first server through the network switchboard, and the second server is used for reading the data packet of the first server through the network switchboard and comparing the data packet from the standard equipmentwith the data packet from the detected equipment. The invention further discloses a precision test method of the electric energy quality monitor. According to the precision test device and method disclosed by the invention, the working efficiency can be improved and artificial errors are thoroughly eliminated.

The invention provides an instant cold and hot forming method for multi-color products. The conventional forming process form is broken through, and multi-color product blanks are formed by injection molding under a cold die state; the multi-color product blanks are kept in the same die and not separated from a die cavity, so that no manmade operation errors are caused between the multi-color product blanks and the die, no gaps are formed, and no air enters; the phenomenon that formed products are low in quality such as requirement for painting and surface burning due to color crossing is avoided; furthermore, the phenomena that the vacuumizing operation is needed to be carried out before forming and the products cannot be completely vacuumized in the conventional process are avoided; moreover, the die is quickly heated to the forming temperature, to form the multi-color products; the die is opened to take out the finished multi-color products; the die is quickly cooled to the cold die state, and new multi-color product blanks are formed by injection molding under the cold die state; and therefore, instant cooling and heating are cyclically carried out, to simply, efficiently and successfully form the multi-color products with high quality. The invention further provides instant cold and hot forming equipment for the multi-color products.

The invention provides a positioning pin dimension detector which comprises a base. The base is provided with a first slide rail in a front-and-back direction. A first sliding table is mounted on the first slide rail. A first driving device is fixed at one side of the first slide rail. A second slide rail is mounted on the first sliding table. A second driving device is fixed with one end of the second slide rail. The second slide rail is provided with a second sliding table. The second sliding table is provided with a spacing board. The spacing board is provided with spacing holes for placing the positioning pins. A height limiting board is arranged above the spacing board. The height limiting board is fixed on the base through a bracket. The height limiting board is provided with through holes for penetration of the positioning pins. The diameter of each through hole is larger than that of the spacing hole. The positioning pin dimension detector can detect the length of each positioning pin, and furthermore has advantages of simple structure, low fabrication cost, low failure rate, high detection result accuracy, no manual error and high suitability for application for quality inspection on the positioning pins.

The invention discloses roll type double-sided adhesive tape and a sheet type aluminum foil attaching device. The sheet type aluminum foil attaching device comprises a rotary attaching plate. A movable end of a mechanical hand is provided with a sucking jig. An ejecting and clamping assembly is arranged between the mechanical hand and the rotary attaching plate and can evenly convey aluminum foilsheets. The roll type double-sided adhesive tape is placed on a first pay-off part. A release film is stripped off by a film tearing part, inclines rearwards and upwards and is wound by a first take-up part. A CCD detecting assembly is arranged on the lower side of the rotary attaching plate, and a rolling assembly is arranged on the rear side of the rotary attaching plate. A pulling part and a stripping machine are sequentially installed at the rear end of a main board. A collecting part is arranged at the rear end of the stripping machine, and a second take-up part is arranged at the lower end of the stripping machine. The sheet type aluminum foil attaching device has the advantages of being automatic in production, high in production speed, high in product precision and high in materialutilization rate.