54results about How to "Meet the needs of collection" patented technology

The invention relates to a microbiological aerosol concentration sampler and a concentration sampling method. The microbiological aerosol concentration sampler is characterized by comprising a concentrator having a virtual impact structure, the concentrator is connected with a total flow air channel, a main flow air channel and a small flow air channel, the main flow air channel is provided with a main flow sensor and a main flow sampling pump sequentially, an output end of the small flow air channel is connected with a liquid impact type microbiological sampler which is connected with a drying bottle through an air channel, the drying bottle is connected with the small flow sampling pump through an air channel, a small flow sensor and a small flow regulating valve are arranged on the air channel between the drying bottle and the small flow sampling pump sequentially, the main flow sensor and the small flow sensor are connected with a digital signal processor electrically, and the digital signal processor is electrically connected with a man-machine interface and the main flow sampling pump. The microbiological aerosol concentration sampler is high in sampling efficiency and capable of preventing damage to microbial activity by long-time sampling, avoiding pollution regeneration and improving detection rate of low-concentration microbiological aerosol and can be widely used for sampling of the indoor and outdoor microbiological aerosol.

The invention discloses a vibrating ladle slag carry-over detection-oriented embedded data acquisition system. The system comprises a multi-point parallel signal acquisition system, a signal pre-processing system and a real-time data analysis system, wherein the multi-point parallel signal acquisition system determines a plurality of characteristic vibration signal measurement points by taking a ladle pouring mechanism and a supporting rack thereof as examination objects; a vibration sensor is arranged at each measurement point to acquire an impact vibration signal generated during the ladle pouring in all directions; the signals are primarily amplified and finally transmitted to the signal pre-processing system in a parallel mode; the signal pre-processing system can receive real-time vibration signals of a plurality of paths of the sensors, pre-process the signals and upload the signals to the real-time data analysis system; and the real-time data analysis system receives a real-time data packet uploaded by the signal pre-processing system, splits the data packet according to data transmission protocol format convention, extracts the impact vibration signal of steel steam and performs the functions of display, storage and analytical judgment.

The invention discloses a vehicle information recorder of a hybrid vehicle, composed of a communication module, a data processing module, and a massive data storing module. The communication module iscomposed of a CAN communication module, a K communication module and a serial port communication module. The CAN communication module and K communication module are connected with relative buses facilitated on the vehicle in order to collect data transmission from the bus. The serial port communication module is connected with a LCD (liquid crystal display) module in order to display error information from electrical control unit of each module on the vehicle and vehicle stratus information such as vehicle speed, etc. By combining with error diagnosis K line and popular CAN line, the invention can collect and discover the errors timely; the data can be stored in a flash disk via USB interface from the PC computer directly, while the recorder can also be connected with the PC computer; thus, it can store data before and after the moment when error occurs; it can also realize long-term storage for all the data completely. The system has the advantages of simple structure, low costs anduse convenience.

The invention relates to the technical field of three-dimensional camera shooting, in particular to a three-dimensional image information acquisition apparatus and an image reconstruction method therefor. The image information acquisition apparatus comprises a mirror surface, wherein a first region is arranged in the mirror surface; a first camera is arranged in the middle of the first region; four or more first light sources are arranged on the mirror surface and distributed on the outer edge of the first region; each first light source is an LED lamp; the first camera is used for acquiring light signals emitted by the first light sources; the first light sources and the first camera are all connected with a control unit; and the control unit is used for controlling each first light source to be switched on or off within a predetermined time and controlling the first camera to work within a corresponding time. The image information acquisition apparatus is simple in overall structure, high in speed, stable in working, high in precision and small in size, can be accepted by general consumers, and has a wide market prospect.