38results about How to "Mentioned accuracy" patented technology

The present invention discloses an activation function generation method of a neural network model. The method includes the following steps that: S1, a plurality of different basic activation functions are selected; S2, the different basic activation functions selected in the S1 are combined so as to form the activation function of the neural network model; and S3, the activation function of the neural network model is updated with the iteration of the neural network model through a back propagation means. With the activation function generated by using the method of the invention can improve the nonlinear change learning capability of the neural network model, and the neural network model can respond differently to different input in a test stage, and a defect that a neural network uses a single activation function can be eliminated.

The invention discloses a method for assessing service lives of fuses by determining activation energy of melts. The method comprises the steps that accelerating aging test of different accelerated stresses is conducted on a plurality of sets of fuses, metal electromigration service lives of the melts under different temperatures are obtained according to a plurality of sets of test data, the activation energy of the melts is calculated in the curve fitting method, parameters of service life assessing models of the fuses are determined, and therefore the service lives of the melts under different conditions can be calculated, and the activation energy of the melts is determined in a test method to assess the service lives of the fuses. Compared with empirical data adoption in the prior art, the method can improve accuracy of assessment of the service lives of the fuses.

The invention belongs to the technical field of sensors, and discloses an F-P cavity type high-temperature large-strain optical fiber sensor, which comprises a transmission optical fiber, a reflectingmirror, an inner sleeve, an outer sleeve, a clamp for fixing the outer sleeve and a sealing structure; the transmission optical fiber can ensure the coaxiality through mutual embedding of the two sets of sleeve devices, and a Fabry-Perot cavity, namely an F-P cavity, is formed between the end face of the optical fiber and the reflecting mirror. The cavity length of the F-P cavity can be changed due to deformation of a measured material, so that the change of a reflection spectrum is caused, and the strain of the material is monitored by analyzing the variation of the spectrum. The F-P cavitytype high-temperature large-strain optical fiber sensor is based on a high-temperature strain gauge of a Fabry-Perot interference principle, and can measure material deformation of tens of thousands to hundreds of thousands of micro-strain levels at high temperature. The optical fiber sensor can realize measurement of large strain at high temperature and simultaneous measurement of temperature andstrain parameters, and is high in measurement precision, high in stability and easy to popularize.

The invention relates to the technical field of communication, and discloses an intelligent complaint processing method and device, electronic equipment and a storage medium. The method comprises thesteps of determining a complaint position based on a geographic information field in a complaint work order; determining a target cell to be analyzed according to the complaint position and the resident cell of the complaint user; and acquiring communication network parameters of the target cell, and determining a complaint reason according to the communication network parameters. According to thetechnical scheme provided by the embodiment of the invention, the complaint position is automatically positioned, the positioning accuracy is improved in combination with the resident cell of the user, the analysis data is automatically acquired for integration and processing, and the complaint processing efficiency and the problem positioning accuracy are improved.

The invention relates to an artificial antique floor, which comprises a panel, a core board and a bottom board stacked in sequence. The panel includes a surrounding frame, a plurality of plates, and locking strips. The surrounding frame is arranged on the core board, and all the plates are arranged side by side on the surrounding frame. In the enclosed area, a locking strip is provided between two adjacent plates, and the core plate is provided with a lock that matches the locking strip. The locking strip includes a base plate and two clamping plates, and the two clamping plates are along the length of the base plate. The direction is parallel and set on the lower surface of the substrate; the outer side of each card board is provided with ribs, and after the locking strip is set between two adjacent plates, the ribs on the card board can be snapped into the lock on the core board. The upper surface of each plate is engraved with a hollow or convex pattern; the upper surface of the panel is covered with a transparent protective layer. The beneficial effects of the present invention are: when a plate is damaged, it is easy to replace, and the remaining undamaged parts can be reused, which saves resources. In addition, a hollow or convex pattern is carved on the upper surface of the plate, which can increase the floor space. aesthetics.

The invention discloses a battery system detection method and device, terminal equipment and a storage medium. The method comprises the steps: transmitting a temperature stress signal corresponding tothe preset temperature to temperature and humidity test equipment, and enabling the temperature and humidity test equipment to control the internal temperature of a to-be-tested battery system to reach the preset temperature; responding to the temperature and humidity stable state signal transmitted by the to-be-tested battery system and sending a vibration stress signal corresponding to the preset vibration road spectrum condition to vibration test equipment so that the vibration test equipment simulates a driving condition corresponding to the vibration road spectrum condition; responding to the driving state signal transmitted by the to-be-tested battery system and sending an electric stress signal corresponding to the preset electric stress profile condition to charging and discharging test equipment so that the charging and discharging test equipment controls the to-be-tested battery system to simulate the battery working condition operation under the driving working condition. The problem that the battery system is not comprehensively evaluated under a single stress condition can be effectively solved, and the real characteristics of the battery system can be accurately andcomprehensively reflected.

The invention provides a sampling device for detecting water resources. The sampling device comprises a test tube fixing hole and a rubber fixing ring, wherein a rotary handle is mounted on a front end face of a wire reeling device; the rotary handle is in rotary connection with an outer end face of the wire reeling device; the wire reeling device is connected with a lifting handle through a pulling rope; the lifting handle is of a circular-arc strip-shaped structure; two ends of the bottom of the lifting handle are mounted on a top end face of a collection bucket; a counter weight block is mounted at the bottom of the collection bucket; the top of a connection block is mounted on a circular-arc end face of the bottom of the counter weight block through a screw; two silt collection hole parts formed in a silt collection cone are of chamfer structures; the silt collection cone is located at the bottom of the collection bucket; water body sample collection is easy to carry out on a riverat a relatively deep part and a water well through the device, people do not need to slide to the water surface and can immediately carry out collection work on a water body sample at a part which isa relatively far away from the height of the water surface, so that the sample collection work is more convenient.

The invention discloses a detection circuit, a detection system and a detection method, the circuit comprises a management system, a first bias circuit and a second bias circuit, one end of the first bias circuit is connected with one end of an element to be detected; one end of the second bias circuit is connected with the other end of the to-be-tested element and is grounded, and the other ends of the first bias circuit and the second bias circuit receive externally input bias voltage; the first biasing circuit comprises a first resistance voltage division circuit, and the second biasing circuit comprises a second resistance voltage division circuit; and the management system is used for collecting the first voltage in the first resistance voltage division circuit, the second voltage in the second resistance voltage division circuit and the current flowing through the element to be detected, and judging the state of the element to be detected. By implementing the invention, the voltage of the element to be detected can be tested, and the resistance is calculated in combination with the current, so that the state of the element to be detected can be judged according to the resistance. Therefore, the detection circuit can be applied to an electric vehicle battery system to realize connectivity diagnosis of a copper bar.

The invention provides a method for preparing a blank solution in a PT base value determination method. The method comprises the following steps of: the step 1: adding 9500ml of a 99.9% methanol solution to a glass bottle, adding 400ml of distilled water to the methanol solution, adding 0.8ml of 0.5mol/L sodium hydroxide solution, and stirring the mixture for 8 hours at the first time to prepare amethanol solution of sodium hydroxide; the step 2: performing standing of the methanol solution of sodium hydroxide obtained in the step 1 in an open state at a room temperature; and the step 3: performing stirring of the methanol solution of sodium hydroxide for the second time, and employing a bottle cap to cover the methanol blank solution of sodium hydroxide for standby. The base value of thepolytetrahydrofuran prepared in the invention is employed to measure the blank solution to reduce the number of times of the measurement of the blank solution, improve the measurement accuracy of thePT base value and improve the finished product of the PT product.

The invention relates to an insert bolt using a bushing and a manufacturing method of the bushing. In order to stably assemble the bolt, the bushing is clamped in a groove where the base metal bolt is connected, and the embedded bushing can play a role in guiding the connection position of the bolt, thus improving accuracy and stability. Besides, the bushing can be fixed on the base metal by using an outer side projection arranged on the outer side face of the bushing, and the bolt can be prevented from separating from the bushing by using an inner side projection arranged on the inner side face of the bushing.

The invention aims to provide a test case automatic generation method for a vehicle lamp controller based on a state machine, which comprises the following steps of: marking all states and trigger events of the vehicle lamp controller one by one by using symbols so as to abstract system requirements of the vehicle lamp controller into a finite automatic state machine model; according to the model,automatically generating a test case of the vehicle lamp controller by a tool; abstracting a state flow chart of the vehicle lamp controller into a state machine model, automatically generating all test cases by a tool, the efficiency is high so that manpower is saved, errors are not likely to happen, and an effective basis is provided for statistics of the coverage rate of test requirements; thedefect that in the prior art, the process is large in workload and tedious is overcome, and careless omission during manual operation is avoided.