42results about How to "Large amount of collected data" patented technology

The invention discloses an array surface myoelectric image collector based on an array electrode and a collecting method. The array surface myoelectric image collector comprises the one 16-channel array electrode, one reference electrode module, two simulation filter and amplification modules, two A / D conversion module, one data processing module and one power module. When the array surface myoelectric image collector is used, sixteen input signals are collected by the 16-channel array electrode, differential amplification and filtering are carried out by sixteen simulation filter and amplification circuits, the input signals are converted into digital signals through the two A / D conversion models, and two A / D converters race to control an SPI bus to transmit data to an MCU for processing. According to the array surface myoelectric image collector, myoelectric signals of sixteen channels can be collected, processed and transmitted at a high speed at the same time, the number of the channels can be increased when a plurality of collectors are used in a parallel connection mode, and a myoelectric image is obtained. Pains, caused by an iEMG, of people are avoided, and the myoelectric image sequence that muscle groups complete a certain motion in a cooperated mode can be further obtained.

The invention discloses a device for detecting the verticality of a pier column of a bridge and belongs to the technical field of bridge detection equipment. The device consists of an infrared distance meter 1, an angle recorder 2, an angle adjusting knob 3, a connecting bracket 4, a round steel supporting seat 5, a telescope holder 6, a level gauge 7, a telescope 8, a tripod connecting supporting seat 9, a data transmission line 10, a data recorder 11 and a telescope adjusting knob 12, wherein according to an assembling relationship, the infrared distance meter 1 is mounted on the angle recorder 2, the angle recorder 2 is mounted at the front end of the connecting bracket 4, the lower end of the connecting bracket 4 is mounted on the right side above the round steel supporting seat 5, the telescope holder 6 which is provided with the telescope 8 is mounted on the left side above the round steel supporting seat 5, the level gauge 7 is mounted at the edge of the right side above the round steel supporting seat 5, the tripod connecting supporting seat 9 is mounted below the round steel supporting seat 5, and the data transmission line 10 is connected with the infrared distance meter 1, the angle recorder 2 and the data recorder 11 respectively. The device is simple in structure and large in detection range, the effects of energy conservation and emission reduction are obvious, and a new field of the verticality detection of the pier column of the bridge is developed.

The invention discloses an array-type flexible surface electromyography electrode and a preparation method thereof. The electrode is used to measure the surface electromyography signal of a human body, and mainly includes a circular electrode sheet arranged in an array and a flexible electrode substrate and insulating oil on which it depends. As well as medical tape and conductive paste for improved contact. The array electrode consists of a plurality of electrode units arranged in a spatial array, and has good softness, adhesiveness and strong deformation adaptability. The spatial distance, array arrangement and impedance matching adopted by the present invention can effectively reduce noise and extract electromyographic signals, so as to facilitate subsequent signal processing. The electrode array designed in the present invention can be easily expanded to more channels to obtain electromyographic images with sufficient spatial resolution, and the surface electrode array adopted can avoid the damage of the plug-in electrodes to the human body, and can also be obtained after expanding enough electrode arrays. Set of images of multiple muscle groups.

The invention discloses a vehicle-mounted mobile resistivity detection system and working method suitable for urban environments. The invention can realize non-destructive ground-type resistivity exploration, flexibly arrange detection lines in a vehicle-mounted manner to realize the layout of the detection system, and reduce Stray electrical signal interference to adapt to the complex noise environment of the city. The invention aims at engineering requirements in the development and construction of urban underground space, combines and exerts the advantages of the mobile vehicle-mounted system, fully utilizes the urban road surface environment, and improves operating efficiency.

The invention discloses a mobile network quality automatic monitoring system and a method for the GSM (Global System for Mobile Communications) and the 3G (The 3rd Generation Telecommunication). The system comprises a background server and more than one automatic detecting terminal based on ARM (Advanced RISC Machines) embedded; and the background server is connected with all the automatic detecting terminals based on ARM embedded. The monitoring method comprises the following steps of: automatically obtaining various network quality parameters of a wireless network access module in the GSM / TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network, executing service test to acquire service quality parameters related to voice telephone traffic, and transmitting the acquired parameters to the background server through a TCP / IP protocol of the GPRS / TD (General Packet Radio Service / Time Division) wireless network when the system is idle so as to analyze and evaluate every parameter of the network quality. The background server processes and stores the network quality parameters returned back by the automatic detecting terminals, which is convenient for managers to access data, and analyze network conditions and solve problems in time.

The invention relates to the field of geotechnical engineering detection and test, in particular to an underground continuous wall leakage detection method. The method is characterized in that the inner side and the outer side of an underground continuous wall are each provided with multiple test holes; resistivity detection is conducted on two adjacent test holes in the same side in sequence before and after foundation pit dewatering, and the resistivity profiles between the two adjacent test holes are worked out according to the detection result; the resistivity profiles of the same position before and after foundation pit dewatering are compared, if it is found that low-resistance abnormality exists in the resistivity profile after foundation pit dewatering compared with the resistivity profile before foundation pit dewatering, it is judged that leakage occurs to the position, corresponding to the low-resistance abnormal resistivity profile, of the underground continuous wall. The underground continuous wall leakage detection method has the beneficial effects that the amount of collected data is large, the detection resolution ratio is high, sensitivity to the resistivity difference is high, and a good effect is achieved on the aspect of ground wall leakage detection; and leakage detection can be conducted on a certain segment of the underground continuous wall at a time, and meanwhile, no influence on the structural body of the underground continuous wall is generated.