18 results about "Contact condition" patented technology

Techniques for conduction-based contact detection for physiological sensors are described. In an example, a wearable device includes a contact-based sensor configured to collect physiological data of a user and at least one electrode positioned proximate to the contact-based sensor, such that a contact status of the electrode corresponds to a contact status of the sensor. The wearable device includes a contact detection circuit that is configured to determine a contact condition of the contact-based sensor that indicates whether the sensor is in sufficient contact with the skin surface based on an electrical characteristic of a conduction path between the at least one electrode and a skin surface of the user. In this way, the techniques described herein support reliable detection of sensor contact quality through conduction-based measurements, which enables wearable devices to ensure accurate physiological data collection while optimizing power consumption and improving an overall user experience.

The present application relates to the field of electric machines, and particularly relates to a terminal mounting detection device and a detection method. The terminal mounting detection device provided by the present application is characterized in that: the detection piece is in contact with the terminal to be detected by mounting the terminal to be detected in the mounting groove, and the contact area of the two is compared to determine whether the installation of the current terminal is good or not, thereby improving the detection efficiency. The terminal mounting detection method provided by the present application is characterized in that: the control panel with the terminal mounted is mounted in the mounting groove, the contact condition between the control panel with the terminal mounted and the detection piece is observed, the mounting condition of the terminal and the control panel is determined according to the contact condition, thereby quickly determining whether the terminal is well mounted or not, and improving the detection efficiency.

Techniques for conduction-based contact detection for physiological sensors are described. In an example, a wearable device includes a contact-based sensor configured to collect physiological data of a user and at least one electrode positioned proximate to the contact-based sensor, such that a contact status of the electrode corresponds to a contact status of the sensor. The wearable device includes a contact detection circuit that is configured to determine a contact condition of the contact-based sensor that indicates whether the sensor is in sufficient contact with the skin surface based on an electrical characteristic of a conduction path between the at least one electrode and a skin surface of the user. In this way, the techniques described herein support reliable detection of sensor contact quality through conduction-based measurements, which enables wearable devices to ensure accurate physiological data collection while optimizing power consumption and improving an overall user experience.

The invention discloses a condition detection method of a stethoscope, electronic equipment, a medium and a product, and relates to the technical field of intelligent equipment.The condition detection method of the stethoscope comprises the steps that contact information between a coverage area of a receiver and the receiver is obtained through a sensor group, and the contact information comprises contact values of different positions on the receiver and the coverage area; generating a contact condition between the receiver and the coverage area based on each contact value in the contact information; the contact condition is output, and the contact condition comprises point locations representing sufficient contact and / or insufficient contact. The contact condition between the receiver and the coverage area is automatically generated and output, so that a user of the stethoscope can adjust the position or posture of the receiver in real time according to the contact condition, dependence on personal experience of a doctor is effectively reduced, and objective guarantee is provided for high-quality auscultation sound.

The embodiment of the application provides a sealing surface contact analysis method, device and computer equipment, the method comprises the following steps: obtaining original surface information of a sealing surface pair to be analyzed; the sealing surface pair to be analyzed comprises a first rough surface and a second rough surface which are in pressure contact; obtaining equivalent surface information of an equivalent surface pair corresponding to the sealing surface pair to be analyzed according to the original surface information; the equivalent surface pair comprises an equivalent rough surface and a rigid plane; and performing contact analysis on the sealing surface pair to be analyzed according to the equivalent surface information. Since the actual contact area of the sealing surface pair to be analyzed and the equivalent surface pair is the same under the same external force, the contact mechanics analysis of the sealing surface to be analyzed can be performed according to the equivalent surface information, the stress contact condition of the sealing surface pair to be analyzed is obtained, the contact mechanics analysis process between the two rough surfaces is simplified, and the analysis efficiency is improved.

A computer-assisted system includes a first manipulator arm assembly with a first manipulator arm, the first manipulator arm configured to support a first instrument, a second manipulator arm assembly with a second manipulator arm, the second manipulator arm configured to support a second instrument, first and second impact sensors disposed on the first and second manipulator arm assemblies, respectively, and a control system. The control system detects, within a detection time window, a first impact signature based on a first sensor output received from the first impact sensor, and a second impact signature based on a second sensor output received from the second impact sensor, and determines that a contact condition is present between the first manipulator arm assembly and the second manipulator arm assembly, based on the detection of the first impact signature and the detection of the second impact signature within the detection time window.

Systems and methods are provided for improving a contact condition between a charging cable and a charging port. A charging cable may be plugged into a charging power to charge an electrical device. A charging cable may include a plug which may mate with prongs of a charging port. The plug may include sensors and a vibrator. The sensors may detect when a user intends to plug the charging cable into the charging port. Upon detection of intent to plug the charging cable into the charging port. The vibrator may be activated and may vibrate the plug. The vibration may generate relative movement between the prongs of the charging port and the plug. The movement may release dirt, dust, and corrosive materials from the charging port and plug, resulting in increased cleanliness. The movement may also assist in forming a more secure connection between the charging cable and plug.

The application discloses a novel energy storage battery rapid welding assembly and relates to the technical field of energy storage battery welding. The application can adjust the position of the connecting disc according to the contact condition of the connecting disc and the battery shell, the connecting disc can prevent welding slag from splashing to the staff, and can prevent the welding head from being damaged or impacted, the connecting disc and the rotating disc are staggered with each other, the welding slag can be melted on the inner wall of the connecting disc, the closed assembly can be disassembled according to the requirement, the tip of the closing block can be close to the middle, and the internal exposure of the welding head can be avoided from being damaged, and the welding head can be normally used after being exposed.

The application provides a contact point detection method and device for a pin power taking connector based on a visual nerve, belongs to the technical field of image processing, and guarantees the robustness of detection. The method is applied to an electronic device and comprises the following steps: the electronic device acquires at least two images, the at least two images are images obtained by shooting a contact point of a pin power taking connector by a shooting device in different shooting directions, and each of the at least two images contains the contact point; and the electronic device processes the at least two images in a spatial dimension by a visual nerve network model to obtain a processing result output by the visual nerve network model, and the processing result indicates whether the contact point has a poor contact condition.

This application provides an intelligent loading and unloading method and system, comprising: collecting data on the soft surface of a carton under initial contact conditions through a distributed pressure sensing unit, obtaining the signal superposition of multiple layers of carton, and obtaining the contact force value distribution; processing the signal superposition of multiple layers of carton using a pressure distribution data analysis method to obtain the dynamic change trend of the surface friction coefficient after analysis; if the adjustment command corresponding to the type of goods indicates a higher threshold for the metal parts, adjusting the contact threshold to ensure sufficient contact, and determining the final increase in clamping force; instructing the actuator to gradually increase the clamping force according to the final increase in clamping force, obtaining real-time feedback pressure distribution data, and obtaining a trigger delay correction value; updating the threshold database parameters using the trigger delay correction value to avoid triggering the adjustment action too early or too late, and determining the optimized contact force threshold; and re-monitoring the initial contact state using the optimized contact force threshold to obtain a stable clamping force adjustment program output.

A wearable device can include one or more temperatures sensors. Data from the one or more temperature sensors provide information, which can be used for the determination of the body temperature of a user wearing the electronic device. The accuracy of the determination of the body temperature of the user is dependent on variables such as the contact condition of the electronic device with the user. By determining the contact condition of the electronic device with the user, including measurements corresponding to one or more thermal emitters being in an activated state, the electronic device is optionally able to determine the contact condition and / or a correction factor, and thereby more accurately determine the temperature of the user.

The invention belongs to the field of microelectronic mechanical performance testing, and particularly relates to a fatigue performance testing system and method for ultra-long fatigue life of a small and micro sample, and the system comprises a displacement unit which is used for clamping and regulating the spatial position of the tested small and micro sample; the loading unit is used for applying a fatigue load to the tested small and micro sample and monitoring the contact condition; the acquisition unit is used for capturing the displacement of the fatigue loading part of the sample in real time when the tested small and micro sample is vibrated by the fatigue load; the upper computer is used for receiving the position signal of the displacement unit, the contact state feedback of the loading unit and the displacement data of the acquisition unit; and the control unit is used for receiving data, controlling the displacement unit to perform spatial position adjustment and load application parameters of the loading unit according to the received data, and processing displacement information transmitted by the acquisition unit so as to output and calculate fatigue performance indexes. According to the invention, the ultra-high-cycle fatigue test of the micro sample can be rapidly realized, and the loading strain can be changed by adjusting the loading length of the sample, so that the ultra-high-cycle fatigue test under multiple strains is realized.

The application discloses a kind of non-invasive flange sealing contact state monitoring method and system, method includes: obtaining the mechanical property parameter data of flange sealing ring, and establishes flange sealing state monitoring model according to mechanical property parameter data;Real-time strain distribution data of flange surface is monitored in real time using sealing state monitoring model, when monitoring that real-time strain distribution data reaches monitoring early warning threshold, early warning is carried out.The application establishes flange sealing state monitoring model by the change rule of strain distribution and sealing contact state of flange surface, identifies the sealing contact state in the flange, and combines the comprehensive factors of mechanical property parameters to analyze the rule of strain distribution and sealing contact state of flange surface, realizes the abnormal monitoring of flange sealing contact state of multiple factors, and can realize local abnormal positioning potential leakage risk, discovers flange sealing failure risk in advance, improves the monitoring accuracy and early warning timeliness of sealing contact state.

The invention mainly relates to the technical field of underground engineering, and provides a geological logging method for a surrounding rock structural plane of an underground cavern in order to efficiently and conveniently carry out geological logging under a non-contact condition. Spatial position parameters of a plurality of feature points on a surrounding rock structural surface are measured remotely in a non-contact mode, precise three-dimensional coordinates and geological occurrence of the feature points of the structural surface are automatically calculated in combination with calibration coordinates of a current stake mark bottom plate center point measured on site, and three-dimensional information is precisely projected to a two-dimensional expanded geological catalog map. Therefore, efficient, safe and accurate geological logging of the surrounding rock of the underground cavern is realized.

This invention discloses a simulation method and system for arc discharge under pivot-rail contact and complete loss of contact conditions, relating to the field of electromagnetic orbital launch device technology. The method includes: constructing a multi-field coupled magnetohydrodynamic simulation model; analyzing the electrothermal field coupling distribution at the pivot-rail contact interface under different pivot-rail contact state development stages; analyzing the variation laws of pivot-rail contact interface parameters and arc discharge parameters under different metal liquefaction layer thicknesses and armature tail fin roughness under the coexistence of three contact states; obtaining the arc morphology and the variation laws of arc temperature and arc energy flux density in the plasma gap with launch time under the complete loss of pivot-rail contact state, as well as the variation laws of pivot-rail contact interface parameters and arc discharge parameters under different pivot-rail micro-contact point numbers, pivot-rail gap widths, and track surface roughness. The multi-physics field coupling distribution characteristics of the contact interface under different pivot-rail contact state development stages are simulated and analyzed.

The invention discloses an IGBT power device terminal contact condition detection system and method, and belongs to the technical field of power electronics. The system comprises a controller, a sampling circuit, a driving circuit and a wiring terminal, the controller outputs a first PWM signal to the driving circuit after starting up each time, a signal at the output end of the driving circuit is collected through the sampling circuit to obtain a second PWM signal, rising edge time delay of the second PWM signal is accumulated and compared with a preset value, and the second PWM signal is output after starting up. Therefore, the contact state of the connection terminals of the grid electrode and the emitter electrode of the IGBT power device is judged. According to the method, the connection reliability of the IGBT terminal can be automatically detected when the high-power device is started each time, faults such as poor contact, open circuit or short circuit can be found in time, the operation safety and the maintenance efficiency of the system are improved, and the method is particularly suitable for long-term operation and remote operation and maintenance scenes of high-voltage high-power power electronic devices.

The utility model relates to the field of beauty instruments, and provides a beauty instrument and a control circuit thereof. The control circuit of the beauty instrument comprises a light-emitting unit, a contact detection unit and a control unit. The contact detection unit is connected with the contact electrode, so that the contact condition of the contact electrode and the skin can be detected, and a corresponding contact detection electric signal is output according to the contact condition. As the contact detection electric signal can represent the contact condition of the contact electrode and the skin, the control unit can be utilized to output the corresponding first power control signal to the light emitting unit according to the contact detection electric signal, and then the light emitting unit is controlled to output corresponding light energy through the light emitting part. Therefore, when the beauty instrument is started and the user does not use the beauty instrument, the temperature of the light emitting part is prevented from rising due to the fact that the beauty instrument outputs large light energy, the instant burning feeling generated when the user uses the beauty instrument after the beauty instrument is started for a period of time is avoided, the use experience of the user is improved, and the use viscosity of the user is enhanced.

The invention discloses a non-intrusive flange sealing contact state monitoring method and system, and the method comprises the steps: obtaining the mechanical property parameter data of a flange sealing ring, and building a flange sealing state monitoring model according to the mechanical property parameter data; and performing real-time monitoring on the real-time strain distribution data of the flange surface by using the sealing state monitoring model, and performing early warning when the real-time strain distribution data is monitored to reach a monitoring early warning threshold value. According to the invention, a flange sealing state monitoring model is established through the strain distribution of the flange surface and the change rule of the sealing contact state, the sealing contact state in the flange is identified, and the flange surface strain distribution and sealing contact state rule analysis is carried out in combination with comprehensive factors of mechanical property parameters. Flange sealing contact state abnormity monitoring influenced by multiple factors is achieved, potential leakage risks can be positioned through local abnormity, flange sealing failure risks can be found in advance, and the monitoring accuracy and early warning timeliness of the sealing contact state are improved.