6results about How to "Increase detection frequency" patented technology

The invention discloses a photovoltaic panel fastener looseness detection method and a photovoltaic cleaning robot, and belongs to the technical field of photovoltaics. The photovoltaic panel fastener looseness detection method is applied to the photovoltaic cleaning robot. The photovoltaic cleaning robot comprises a robot body and a sound receiver arranged at the bottom of the robot body. The method comprises the steps that in the process that the photovoltaic cleaning robot cleans a photovoltaic module along a preset path, a sound receiver is controlled to acquire a sound signal at a fastener between two adjacent photovoltaic panels in the photovoltaic module; and judging whether the fastener is loosened or not according to the sound signal. According to the embodiment of the invention, the loosening condition of the fastener of the photovoltaic panel can be detected in time.

The application relates to a user natural gas safety detection system, a method and a storage medium, and the method comprises the following steps: reading user information of a user natural gas meter, wherein the user information comprises a user ID and a gas record; dividing the user type of the user ID based on the gas record; generating a trigger signal with different detection frequencies based on the user type; obtaining gas information corresponding to the user ID based on the trigger signal to update the gas record; judging whether a natural gas pipeline exists leakage based on the gas information, and issuing an alarm information when the leakage judgment result is that leakage exists, wherein the alarm information comprises the user ID; issuing a valve closing action instruction to the natural gas meter corresponding to the user ID based on the alarm information, and recording the alarm information in the gas record. The application has the effects of improving the safety of a household natural gas pipeline and realizing global natural gas safety detection and protection for community users.

This utility model relates to the technical field of sound and light alarm devices, and discloses an intelligent wireless sound and light alarm device, comprising: a first limiting frame plate, the first limiting frame plate being annular and having a hollow opening inside; a second limiting frame plate, the second limiting frame plate being disposed outside the first limiting frame plate, the second limiting frame plate being annular and having a hollow opening inside; a limiting structure, the limiting structure including two sets of first limiting plates, the first limiting plates being disposed outside the first limiting frame plate; and a detection structure, the detection structure including a first explosion-proof box, the first explosion-proof box being fixedly installed inside the first limiting frame plate; achieving the purpose of limiting and fixing the device, adjusting the position of the limiting structure according to different bracket sizes, improving the flexibility of the device's use, improving the device's fixing strength, improving the installation environment of the detection device, reducing the damage to the detection instrument, and extending the service life of the device.

The utility model discloses a card with health detection function, including card body, be provided with flexible circuit board in card body, two metal dry electrodes that expose on the surface of card body are arranged on the flexible circuit board, and metal dry electrode is used for contacting with the hand of person and gathers bioelectric signal, the one side of flexible circuit board is provided with insulating electrode holder to metal dry electrode, be provided with signal amplification module, filter module, AD conversion module, signal processing module, data storage transmission module and power module on the flexible circuit board, signal amplification module is used for the amplification to the weak bioelectric signal of collection, filter module is used for removing the high frequency noise and low frequency interference of bioelectric signal, AD conversion module is used for converting the bioelectric signal after amplification and filtering into digital signal, and data storage transmission module is used for transmitting the signal after processing to smart mobile phone, the utility model discloses small and exquisite easy to carry, better maintenance user's health.

The invention discloses an infrared high-frame-frequency image target track processing method and system, and relates to the infrared detection technology, and the method comprises the steps: obtaining an infrared image, and detecting the position information of a target; based on the detected target position information, target detection abnormal values are eliminated through a target parameter sigma interval abnormity filtering mechanism; for the image with the target detection abnormal value removed, estimating the target position by using target historical position information based on a Gaussian weight time sequence positioning trajectory smoothing method; and based on the estimated target position, obtaining a target track processing result through a target track Kalman filtering noise reduction method. According to the method provided by the invention, in order to solve the problem that in an infrared high-frame-frequency image detection task, the target track precision is influenced by noise interference such as detection frequency increase, system jitter and target flicker, the target alarm track precision can be improved, and the sensitivity of a track filtering algorithm to track discontinuity is weakened.

The application discloses a kind of soil microplastic detection method, device, equipment and medium, comprising: obtaining several soil samples in target area, and determine the soil parameters of soil sample;According to the soil parameters, the target area is divided, and first area and second area are obtained;The soil sample of first area is pretreated, and microplastic sample is obtained;The microplastic sample is analyzed, and the microplastic parameter corresponding to the microplastic sample is obtained;According to the microplastic parameter, determine the migration risk;According to the migration risk and the area of first area, determine the detection interval period of the soil microplastic of target area.The application belongs to the field of microplastic detection.The application can accurately determine the microplastic detection period.