12results about How to "Reliable implementation" patented technology

The utility model discloses a battery pack with a heating function, which comprises a battery pack body, at least one storage box, at least one ultrasonic transducer and an ultrasonic generator, the battery pack body comprises a shell and a plurality of modules, and the modules are fixedly connected in the shell; a heat transfer medium is contained in the storage box, and the outer wall of the storage box is fixedly connected with the bottom surface of the bottom plate of the shell; the ultrasonic transducer is fixedly inserted into the storage box; the ultrasonic generator is fixedly connected to the bottom surface of the bottom plate and is electrically connected with the ultrasonic transducer; the ultrasonic generator is electrically connected with the power supply device. The heat transfer medium in the storage box is heated by utilizing the cavitation effect of ultrasonic waves and the accompanying heat effect, so that the heat of the heat transfer medium is transferred to the module, and the charging and discharging problems of the battery pack under the extremely cold condition are effectively solved.

The invention relates to the technical field of robots, in particular to a position detection method. The method specifically comprises the following steps: calculating a first position sequence of an output end of an actuator based on a current position of a first encoder and a pre-calculated maximum number of output turns; calculating a second position sequence of the output end of the actuator based on the current position of the second encoder and the maximum number of output turns; based on the first position sequence and the second position sequence, the actual position of the output end of the actuator is obtained, and the cost of the joint actuator is reduced.

The utility model discloses a vehicle window motor locked-rotor control device and a vehicle window controller, relates to the technical field of vehicle body control, is used for realizing locked-rotor control of a vehicle window motor, and provides the vehicle window motor locked-rotor control device aiming at the problem that the locked-rotor of the vehicle window motor is not solved in time at present. Whether the motor is locked or not is judged by the controller; and if the motor is locked, the controller controls the motor to stop rotating so as to timely cut off the operation of the motor and avoid influencing the service life of the motor. In addition, the device utilizes a resistor as a sampling element to realize conversion from a current signal to a voltage signal; the voltage signal is amplified in an in-phase amplification mode; on the premise that the input requirement of any controller is met, the device is more reliable, easy to implement, low in cost and very suitable for batch production in actual vehicle production design, and the actual engineering and production requirements can be better met.

The invention relates to a distance detection device and method and machining equipment, the distance detection device comprises a machining head for machining a machined part, the distance detection device is fixed to the machining head, and after the height of the surface of the machined part is detected through the distance detection device, the machining head is adjusted for machining according to the height. The distance detection device is detachably connected with the processing head, so that the detection device is convenient to mount and dismount, and the distance detection device is flexibly adapted to various processing heads and can apply external force with the same axial degree and the same direction to the distance detection device so as to perform probe extension and contraction movement; the situation that the detection device needs to reach a reset point to reset when stretching out and contracting back at different positions is avoided, resetting at the same X-axis position and the Y-axis position is achieved, then the surface distance of a machined object is rapidly measured, the movement duration is shortened, and the working efficiency is improved. Meanwhile, the problem that the extension distance of the detection device is too short due to insufficient moving space of the machining head is solved by utilizing the lever principle. The device moves in the same axis and in the same direction, damage to the surface of a machined object is small, cost and maintenance cost are low, and the overall structure is simple and compact.

The invention provides a satellite-borne software in-orbit high-speed programming method, a system medium and a satellite system. The method comprises the following steps: recording a bad block address; processing the programming data according to the set format with the address tag and the bad block address to obtain a programming data block; uploading the programming data block to a high-speed responder; enabling the high-speed responder to receive the programming data block and then transmit the programming data block to the integrated electronic computer, and storing and normalizing the programming data block according to the address tag; according to the data on-demand instruction, the integrated electronic computer transmits the programming data blocks to the programming terminal in sequence; enabling the programming terminal to receive and check the programming data block, and performing autonomous updating according to the programming data block; and according to the loading verification instruction, starting an on-satellite update uploading version, and checking the programming validity. According to the method, the programming success rate is greatly improved, and meanwhile, the conditions of software restart or on-satellite storage data upset and the like possibly caused by severe environments such as in-orbit external single particles and space magnetic storms can be effectively avoided.

The application discloses a crane vibration monitoring method, an intelligent control method and application, and is characterized in that when a crane starts a work starting signal, the work parameters of the crane are recorded, vibration data of each equipment area of the crane and position data of the crane are also recorded correspondingly, work monitoring data, vibration monitoring data and position monitoring data are correspondingly generated, the vibration monitoring data of the crane is judged, when the vibration monitoring data points to an exception, the work monitoring data and the position monitoring data can be output synchronously to assist maintenance personnel in fault judgment and fault reproduction, the application further counts the exception records to generate exception count information, judges the correlation of the exception count information, and outputs exception record prediction information to assist the maintenance personnel in troubleshooting and judgment during routine maintenance, so that crane faults can be prevented in advance and targeted maintenance can be performed.

The application discloses a kind of based on feature projection and self-adapting search ring's knotter special-shaped part processing method, it is characterized in that, including the following steps: S1 obtains the three-dimensional model data of knotter special-shaped part, the main tensile direction of model is calculated using principal component analysis method, and combined with the tool positioning strategy based on datum plane+process hole, establish composite machining coordinate system;S2 traverses model topological surface, according to the angle between the normal of each topological surface and the main tensile direction, wall thickness and the relative attitude with tool positioning datum plane, screen out the set of faces to be projected;S3 with the geometric center of part as origin, the main tensile direction is normal to construct self-adapting projection plane, the set of projected faces is projected to the plane to obtain two-dimensional projection edge set, and two-way search ring is carried out using maximum corner priority strategy, generates the two-dimensional closed ring representing different features.

This invention discloses a narrowband multi-hop ad hoc network incremental location information transmission system, including terminals and field devices. Multiple terminals are arranged such that the distance between any two adjacent terminals is less than or equal to the terminal's radiation radius. These terminals form an ad hoc network. The field devices are power acquisition terminals that collect remote signaling data, telemetry data, and remote control data. Data from the field devices within the specified area during operation is transmitted through this ad hoc network. The ad hoc network comprises initial networking and periodic networking. This system uses incremental location information as the data transmission channel, significantly shortening location routing transmission time compared to direct transmission, reducing service collisions, and maximizing the connectivity of the ad hoc network. It provides a valuable green lifeline in emergency environments.

The invention belongs to the technical field of flight tests of aircrafts, and discloses a radio altimeter height measurement precision test flight verification method based on a laser range finder, which comprises the following steps of: 1, measuring a position difference value between a radio altimeter and the laser range finder; 2, measuring a mounting roll angle L theta 1 and a mounting pitch angle L theta 2 of the laser range finder; 3, adding data acquisition equipment on the aircraft, and synchronously acquiring the height H1 of the laser range finder, the radio height H2, the roll angle theta1, the pitch angle theta2 and the indicated airspeed Vi; 4, collecting an initial height value H0 of the laser range finder when the aircraft is in a ground shutdown state; recording an aircraft roll angle initial value I theta 1 and a pitch angle initial value I theta 2 output by the inertial navigation system at the same time; 5, controlling the flight of the aircraft, and collecting the collected data through a data collection device; step 6, calculating the measured value deviation delta H1 (t) of the radio altimeter signal transceiving system and the laser range finder caused by the pitch attitude change; calculating the measured value deviation delta H2 (t) of the radio altimeter signal receiving and transmitting system and the laser range finder caused by the roll attitude change; 7, calculating the actual terrain clearance H (t) measured by the laser range finder; 8, calculating the test flight precision delta H (t) of height measurement of the radio altimeter; and 9, calculating the mean value and the standard deviation of the test flight precision in the flight time period.

The invention belongs to the technical field of power transmission line point cloud registration, and particularly relates to a power transmission line point cloud registration method and device and a computer readable storage medium. The method comprises the following steps: firstly, acquiring point cloud data sets of the same power transmission line, namely a source point cloud set and a target point cloud set, and extracting power lines and pole nodes in the source point cloud set and the target point cloud set; then, an optimal rotation matrix for registration is solved by utilizing the extracted power line, and an optimal translation vector for registration is solved by utilizing the extracted pole nodes; and finally, performing power transmission line point cloud registration by using the optimal rotation matrix and the optimal translation vector. According to the whole scheme, only the power line and tower nodes in the power transmission line point cloud need to be extracted, then the rotation matrix and the translation vector are calculated based on the extraction result, the calculation amount of the whole scheme is not large, but high precision can still be guaranteed, and point cloud registration in the complex scene of the power transmission line is achieved.

The invention discloses a method and a system for reliable communication between transformer substation monitoring and a dispatching master station. The method comprises the following steps: establishing a hierarchical multi-connection communication link channel for communication between two monitoring backgrounds of a transformer substation and a dispatching master station system through respective corresponding telecontrol devices based on a dual-computer dual-network redundant communication architecture, and incorporating the hierarchical multi-connection communication link channel into a link pool for management; the two monitoring backgrounds adopt a dual-network redundant bus communication mode, determine a main-standby state according to a dual-machine main-standby mechanism of the monitoring system and notify the telecontrol device; the telecontrol device only forwards a message command issued by the scheduling master station system to one monitoring background for processing according to a telecontrol message command forwarding strategy, and forwards a result returned by the monitoring background to the scheduling master station system; and the telecontrol device forwards the file data of the monitoring backgrounds issued by the scheduling master station system to the two monitoring backgrounds at the same time so as to monitor a file data processing strategy for processing, and selects one monitoring background to return a result to forward the scheduling master station system according to a telecontrol file data processing result response strategy. Reliable communication between transformer substation monitoring and a dispatching master station can be realized.

The invention discloses a double-rate model-free control method driven by a high-frequency motor. The core principle of the double-rate model-free control method is that a calculation-intensive task is separated from high-rate control execution; specifically, complex online model identification and time delay compensation are executed through slow-rate interruption, so that an accurate data driving model without physical parameters is obtained; meanwhile, a control sequence of a high-rate control period is generated at a time in slow-rate interruption by using an interpolation time translation prediction method; then, the high-rate interruption is only responsible for executing the pre-calculated control sequences one by one in sequence; due to the fact that correction based on the latest identification model is achieved on each high-speed control point, and the calculation burden of high-speed interruption is extremely low, the method fundamentally solves the problems of calculation real-time constraint and model parameter dependence in high-frequency control, and therefore high-robustness quasi cycle-by-cycle control of the high-frequency motor driving system is achieved.