31 results about "Electronic leash" patented technology

A device suitable for data collection of an electronic belt conveyor scale of an ore dressing plant relates to the field of mining in the open air, especially to data collection of the electronic belt conveyor scale of the ore dressing plant. The device comprises a Modbus master station and a Modbus slave station, and the electronic belt conveyor scale serves as the Modbus slave station. Thus, the problem that data of the electronic belt conveyor scale of the ore dressing plant is inconsistent with remote data can be solved.

The invention discloses a condition monitoring system for an electronic belt scale. The condition monitoring system comprises the electronic belt scale, a monitoring device and a processing device. When tobacco leaves pass through the electronic belt scale, the monitoring device monitors the instantaneous flow P of the tobacco leaves; when P is larger than or equal to 2000 kg / h and less than or equal to 2300 kg / h, the processing device sends out a fault signal; when the P is larger than or equal to 2300 kg / h, the processing device sends out a major fault signal. The instantaneous flow of the tobacco leaves when the tobacco leaves pass through the electronic belt scale is effectively guaranteed, and the situation that the tobacco leaves are incompletely processed due to excessive quantity is avoided.

The invention provides a state monitoring and fault judging method of an electronic belt scale. The method comprises the steps of presetting weight threshold data of the electronic belt scale in various operating states; obtaining the operating state of the electronic belt scale; acquiring actual weight data of a weight sensor of the electronic belt scale, acquiring the weight threshold data in the operating state according to the operating state of the electronic belt scale, comparing the actual weight data with the corresponding weight threshold data, judging whether the electronic belt scale has a fault or not according to a comparison result, if a fault occurs, sending prompt information according to the comparison result. The method provided by the invention can reduce the workload ofcalibration of the electronic belt scale, reduces the manpower investment, avoids the analysis of faults of the electronic belt scale by human factors, and improves the accuracy of calibration of theelectronic belt scale.

The invention provides an electronic belt scale electrical parameter testing method based on a virtual instrument, and the method comprises the following steps: S1, connecting a system, installing a speed measurement sensor and a gravity sensor on rotating shafts of a plurality of carrier rollers for rotation of a belt, respectively connecting two data collection cards with the gravity sensor and the speed measurement sensor, merging the data collection cards into a case and connecting the data collection cards into a PC (Personal Computer) through a USB (Universal Serial Bus) interface, and using LabVIEW software installed in the PC; S2, deducting the dead weights of the belt and a scale frame, and measuring the weight by adopting a weighing bridge frame and a resistance strain type sensor; and S3, accumulating the flow M of the materials within the time interval t. According to the invention, a virtual instrument graphical software programming technology and a powerful mathematical function library of the LabVIEW are adopted to display and integrate the acquired data, so that the instrument not only has the basic functions of a traditional instrument, but also fully utilizes the advantages of graphical language programming of the LabVIEW to develop a good human-computer interface.

The invention discloses a method for accurately checking an electronic belt scale. The invention relates to an electronic belt scale physical verification technology. According to the method, six steps of calibration section length determination, data recording, sampling, electronic belt scale weighing data calculation, precision calculation and basis judgment are carried out, the problem that theconventional calibration time is long is solved, the equipment operation rate is greatly improved, the equipment production efficiency is well exerted, and considerable economic benefits and social benefits are brought to enterprises.

The invention discloses a two-dimension angle-variable electronic belt scale weighing compensation method and system. The method includes: utilizing a method that cosine values of positive and negative angles are equal to acquire a datum offset angle; calculating compensation accumulation quantity Q according to the datum offset angle and angles between Y and Z directions and a horizontal straight line to correct compensation angle offset caused by actual stressed structure state of a scale frame for compensation. By the method, compensation accuracy is improved greatly. The system is characterized in that a load sensor, a speed sensor, a Z-direction angle sensor and a Y-direction angle sensor are all fixedly mounted on the electronic belt scale frame and all connected with a two-dimension angle-variable belt scale instrument. The problem of metering errors caused by changing of two-dimension inclination angle of an angle-variable electronic belt scale in the process of metering is solved effectively, and application range is wide.

Multi-material automatic weighing device is an automatic weighing detection technology, which includes an electronic belt scale, a programmable controller, a computer, the output of the electronic belt scale is connected to the input of the programmable controller, and the output of the programmable controller Connect to the input of the computer, connect the output of the computer to the input of the server, connect the output of the server to the input of the display, the electronic belt scale collects the flow signal of the material transported by the belt; the programmable controller collects the running signal of the belt, and collects the instantaneous Quantity, material identification is carried out through the material type judgment module, and classification measurement is performed through the material type measurement module; the computer runs the material type statistics module, and the material measurement data is classified and queried according to the number of shifts and days; the material measurement data is calculated through the interface module. The data is automatically uploaded to the information system. The invention realizes automatic classification and measurement according to materials, and provides automatic statistics and query functions and automatic data uploading at the same time.

The invention discloses an online calibration method for an electronic belt scale provided by the invention, which includes performing an accuracy calibration on the electronic belt scale, and if the actual accuracy error value is greater than the accuracy error threshold value, then by "selecting n instantaneous flow rate measurement The average value is the adjusted instantaneous flow measurement, and the number and time of calibration detection are extended to reduce the calibration accuracy error of the electronic belt scale and improve the calibration stability of the electronic belt scale. In addition, it also includes the accuracy calibration of the electronic belt scale; The stability composite index fills the gap in the stability calibration and adjustment of the electronic belt scale. Through the composite calibration and adjustment, the stability and accuracy of the electronic belt scale can be accurately distinguished and improved, and then the material fluctuation and measurement error of the batching production line can be correctly distinguished. , to achieve the goal of precise batching, and the operation steps during online calibration are relatively simple. It can be combined with the current general electronic belt scale automatic control facilities for automatic control settings, simplifying front-line operations and facilitating promotion.

The invention belongs to the technical field of electronic belt scales, and particularly relates to an electronic belt scale which is installed on a belt conveyor, used for metering materials passing through the belt conveyor, easy and convenient to install, high in precision, stable to use and easy to maintain. The existing electronic belt scale in the background technology has the following problems: 1, the overall structure is complex; 2, the size is large, and the installation difficulty is high; therefore, in order to solve the problem, the invention provides a novel electronic belt scale which is simple in structure, simple to install and simple to maintain. The invention aims to solve the problems in the background technology. The novel electronic belt scale provided by the invention is simple in structure and easy to install. The novel electronic belt scale is arranged below a group of carrier roller brackets of the belt conveyor and is in bolted connection with a frame of the belt conveyor on two sides. According to the novel electronic belt scale, the base, the weighing sensor, the supporting plate and the V-shaped pressing device form a weighing structure main body of the novel electronic belt scale, and the novel electronic belt scale is simple and convenient to install and maintain. In order to achieve the purpose, the invention provides the following technical scheme that the novel electronic belt scale comprises four parts: a base of the novel electronic belt scale, a weighing sensor, a supporting plate and a V-shaped pressing device.

The invention relates to a monitoring system and method for the operating state of an electronic belt scale, the electronic belt scale and a tobacco processing system. The monitoring system comprisesa ratio calculating module (10) and a comparative judgment module (20), wherein the ratio calculating module (10) is used for calculating a ratio of instantaneous flow rate of material conveying of the electronic belt scale to working frequency of a frequency converter; the comparative judgment module (20) is used for judging whether the ratio of the instantaneous flow rate to the working frequency exceeds a preset range, and if the ratio exceeds the preset range, failure of the electronic belt scale is determined. The monitoring system can judge whether the electronic belt scale fails by monitoring the ratio of the instantaneous flow rate to the working frequency, so that the electronic belt scale can convey and weigh materials normally, weighing accuracy and precision of the electronic belt scale are guaranteed, and the product quality is improved.

The invention belongs to the technical field of weight measurement of materials in the transmission state, and in particular relates to a high-accuracy real-time monitoring method for electronic belt scales. Two electronic belt scales are installed in series on the same belt conveyor, respectively being the first electronic belt scale. The scale and the second electronic belt scale realize simultaneous measurement. The first electronic belt scale is connected to the first on-site signal acquisition unit, the second electronic belt scale is connected to the second on-site signal acquisition unit, and the first on-site signal acquisition unit is connected to the second on-site signal acquisition unit. The signal acquisition unit is connected to a terminal processor at the same time, and the terminal processor is connected to the alarm device through the controller.

The invention relates to the field of electronic belt weighers, and in particular relates to an electronic belt weigher weight accumulation method based on DCS / PLC. The method comprises the steps of periodically acquiring analog signals of an electronic belt weigher, calculating the weight in the same period, and accumulating to obtain the weight of this time. The problem that the calculation error of the weighing result of the electronic belt weigher is large is solved, furthermore, the set value is corrected by calculating the correction value, the total weight obtained during multiple times of weighing is more accurate, and the method is suitable for the electronic belt weigher based on DCS / PLC.

The invention discloses a power automatic adjusting device and method for a winnowing machine. A feeding vibration groove is arranged at the front end of a feed inlet of the winnowing machine, the front end of the feeding vibration groove is connected with an electronic belt scale, an infrared moisture meter is arranged near the feeding vibration groove, a detecting portion of the infrared moisture meter is aligned with the feeding vibration groove, an air inlet is formed below the feed inlet of the winnowing machine, the upstream pipeline, connected with the air inlet, of an air return pipeline is provided with a positive pressure fan, the tail end of the air return pipeline communicates with an air outlet of the winnowing machine, the downstream pipeline close to the air outlet is provided with a negative pressure fan, the position, close to the air inlet, of the bottom of the winnowing machine is provided with an impurity outlet, the position, away from the air inlet, of the bottomof the winnowing machine is provided with a discharge gas lock, and the electronic belt scale, the infrared moisture meter, the positive pressure fan and the negative pressure fan are all connected with a controller. The power automatic adjusting method comprises the steps of setting of basic materials, collection of real-time data and automatic adjusting. The power automatic adjusting device andmethod can adjust wind power according to practical conditions so as to achieve precise separation of cut tobacco and impurities. The device is simple in structure, and the method is easy and convenient to operate and easy to implement.

The invention discloses an online real-time calculation and evaluation method of an electronic belt scale, which uses the electronic belt scale's material signal as a trigger condition to collect the weight collection value, speed collection value, instantaneous flow collection value and cumulative weight collection value output by the electronic belt scale. And calculate the instantaneous flow calculation value and the cumulative weight calculation value; calculate the ratio of the collection points where the instantaneous flow collection value is within the upper and lower limits of the instantaneous flow calculation value to the total collection points, and the cumulative weight collection value is within the upper and lower limits of the cumulative weight calculation value The ratio of the collection points to the total collection points is used to obtain the pass rate of the instantaneous flow collection value and the cumulative weight collection value. The invention is a method for judging the matching between the instantaneous flow rate and the cumulative weight of the electronic belt scale, which realizes the real-time monitoring of the weighing accuracy of the electronic belt scale, estimates the risk of weighing errors, and can timely alarm and shut down through real-time evaluation, reducing the quality of production materials In the case of damage, the process monitoring of the electronic belt scale is greatly enhanced.

The invention relates to the technical field of mechanical equipment, and particularly to an adjustable electronic belt conveyor scale object detecting hanging weight calibrating device. The device comprises a base, a mounting trough, a pressure sensor, an electronic belt scale body, a mounting board, a chamber, a chute, a top board, a connecting block, an electric push rod, a hanging weight, a groove, an electromagnet, an infrared opposed switch and a controller. The hanging weight is mounted on the top board when not in use. Furthermore the top board is in the chamber. Therefore the electronic belt scale is not affected by the top board in an operation process, and convenient conveying is realized. Furthermore when the electronic belt scale needs calibration, the electric push rod can move the top board to surface of the mounting board, thereby making the hanging weight be arranged above the electronic belt scale. Simultaneously the electromagnet is powered off, and the hanging weight is arranged on the surface of the electronic belt scale. Through the pressure sensor, dynamic verification and calibration of the electronic belt scale are realized.