54results about How to "Judgment position" patented technology

The invention discloses a railway track real-time monitoring system and a data processing method thereof, and belongs to the filed of railway track safety. The railway track real-time monitoring system comprises a piezoelectric sensor, a collection box, a wireless sensor and a vibrator, wherein both the piezoelectric sensor and the vibrator are arranged on the railway track and connected with the collection box; the wireless sensor is arranged on a high-voltage power line; the collection box sends an encryption signal to the vibrator; the vibrator drives the railway track to generate the vibration; the piezoelectric sensor acquires a vibration audio signal on the railway track and sends the vibration audio signal to the collection box for processing; and the collection box transmits the vibration audio signal through the wireless sensor in a wireless or wired transmission way. In the invention, the vibration audio signal is taken as a data basis for analyzing the failure happening in front of a train, the monitoring blind zone of the railway track is eliminated, the integral collection of the fault analysis basis data is achieved, the failure happening in front of the train can be predicted through the data processing method, and the intelligentization and the netwoking of the monitoring system are improved greatly.

The invention relates to a method for conducting magnetic resonance advanced detection through rotation of a loop antenna. According to the method for conducting magnetic resonance advanced detection through rotation of the loop antenna, the loop antenna is fixed to a rotary support, measurement based on vertical rotation and measurement based on horizontal rotation are adopted, in a tunnel or a mine, a water-contained body in front of a tunnel face, a water-contained body of a roof, a water-contained body of a base plate, a water-contained body of the left side wall and a water-contained body of the right side wall are detected, hydrological parameter inversion is conducted on an obtained magnetic resonance signal, and thus a two-dimensional water content sector diagram is obtained. According to the method for conducting magnetic resonance advanced detection through rotation of the loop antenna, a one-dimensional magnetic resonance detection method is expanded into a two-dimensional magnetic resonance imaging method; compared with one-dimensional detection according to which only whether a water-contained body exists right in front can be judged, the method has the advantages that the rotary loop antenna is used for multi-angle detection and two-dimensional imaging, and the specific positions, the scales and the water contents of the water-contained bodies can be accurately judged; in addition, the problem that the space which the water-contained body is from can not be determined due to totals-space radiation of the antenna is effectively solved. By the adoption of the method, magnetic resonance detection precision is improved, the spatial distribution of the water-contained bodies nearby the tunnel face can be reflected more accurately, and life and property losses caused by the geological disasters such as water inrush and water burst during tunnel or mine construction are reduced.

The invention relates to the technology of delivering wafers in the semiconductor wafer machining process, in particular to a device for delivering the wafers processed in a plurality of chambers. The device mainly comprises a lifting motor, a lead screw, a lifting platform, a rotating motor, a rotating platform, at least three mechanical claws and driving mechanisms, wherein the driving mechanisms are used for driving the mechanical claws, and the number of the driving mechanisms is the same as the number of the mechanism claws. The device can go up and down, rotate and stretch out or draw back at the same time, the movement in the three directions is carried out in unit time, therefore, the wafers can be delivered to expected positions rapidly and accurately. Further, due to the fact that at least three mechanical claws are arranged, the problems that the wafers are cross-contaminated, the wafers are lifted too low, the delivering speed is low and the delivering efficiency is low when the wafers are delivered by a traditional wafer delivery device among a plurality of chambers are solved.

A brushless motor includes a rotor, a plurality of sets of stator windings, a position detection assembly, a MOSFET assembly, an inductance detection module and a main control module that controls them. The position detection assembly has a plurality of detection elements for detecting a position of the rotor and a position detection module for receiving signals fed back from the detection elements with the position detection module being electrically connected to the main control module and feeding back the positional information of the rotor thereto. The main control module alternatively switches between the position detection assembly and the inductance detection module to detect the position of the rotor. When the motor runs at a low speed, the system may effectively judge the position of the rotor to enable the machine to start with a load and, when the motor runs at a high speed, the system may accurately judge the position of the rotor, correctly drive the motor to run, eliminate errors caused by assembly, and prolong the service life of the motor.

The invention relates to a detection apparatus specially used for a computer display screen support. The detection apparatus comprises an examination platform at least having two locating slots, reference columns which are fixedly arranged on the examination platform and in one-to-one corespondence to first connecting holes, a presser foot rotatingly arranged on the examination platform in an adjusting manner for pressing against two first rack plates, two bearers respectively arranged at the two sides of the presser foot, and examination poles movably arranged on each bearer in the width direction of the examination platform, wherein the reference columns can penetrate the first connecting holes, the horizontal distance between the bearers and the reference columns is equal to the length of the first rack plates, and the height of the bearers is greater than or equal to the length of second rack plates, the vertical distance between the examination poles and the bottoms of the bearers is equal to the vertical distance between second connecting holes and the first rack plates, and the detection end portions of the examination poles can be inserted into the second connecting holes. By using such a special-purpose detection apparatus provided by the invention, the accurate positions of the first connecting holes and the second connecting holes can be effectively determined and batched scrap of the supports can be prevented.

The invention discloses an unmanned aerial vehicle power supply anomaly intelligent early warning system and belongs to the unmanned aerial vehicle power supply monitoring field. The unmanned aerial vehicle power supply anomaly intelligent early warning system includes a battery, DC-DC voltage reduction modules, loads, power supply end detection devices, a processor, a flight controller, a warning lamp and a ground station; the battery is connected with the DC-DC voltage reduction modules; the DC-DC voltage reduction modules are connected with the loads; the battery and the loads are equipped with the power supply end detection devices; the power supply end detection devices includes voltage detection devices and current detection devices; the warning lamp and the power supply detection devices are connected with the processor; the processor is connected with the flight controller; and the flight controller is connected with the ground station. According to the unmanned aerial vehicle power supply anomaly intelligent early warning system of the invention, the loads and warning degrees are classified, and therefore, the severity of a system anomaly can be judged more accurately, and the location of the system anomaly can be judged more precisely; and according to a multi-channel detection mode, each load is detected, and therefore, the troubleshooting of a fault can be better facilitated.

The invention discloses a railway track real-time monitoring system and a data processing method thereof, and belongs to the filed of railway track safety. The railway track real-time monitoring system comprises a piezoelectric sensor, a collection box, a wireless sensor and a vibrator, wherein both the piezoelectric sensor and the vibrator are arranged on the railway track and connected with the collection box; the wireless sensor is arranged on a high-voltage power line; the collection box sends an encryption signal to the vibrator; the vibrator drives the railway track to generate the vibration; the piezoelectric sensor acquires a vibration audio signal on the railway track and sends the vibration audio signal to the collection box for processing; and the collection box transmits the vibration audio signal through the wireless sensor in a wireless or wired transmission way. In the invention, the vibration audio signal is taken as a data basis for analyzing the failure happening in front of a train, the monitoring blind zone of the railway track is eliminated, the integral collection of the fault analysis basis data is achieved, the failure happening in front of the train can be predicted through the data processing method, and the intelligentization and the netwoking of the monitoring system are improved greatly.

The invention provides a protection system for computer security, and relates to the field of computers. The protection system for computer security comprises a computer terminal and a user terminal, and the computer terminal comprises a microprocessor, an unlocking module, an alarm module, a communication module, a data clearing module, a storage module and an anti-disassembly mechanism. The microprocessor is electrically connected with the unlocking module, the alarm module, the communication module, the data clearing module, the storage module and the anti-disassembly mechanism, the computer terminal is connected with the user terminal through the communication module, and the anti-disassembly mechanism is electrically connected with the data clearing module and the alarm module through the microprocessor. Through a temperature sensor, a vibration sensor and an automatic button, unlocking information and dismounting information of the computer can be collected, the state of the computer can be fed back to a user, data deletion is carried out through remote operation of the computer, information safety is improved, and computer safety protection is enhanced.

The invention provides a deep granite rock burst positioning measurement system and a deep granite rock burst positioning measurement method based on WSN. The deep granite rock burst positioning measurement system comprises a plurality of sensing stations, a wireless router set which is electrically connected with the plurality of sensing stations, a coordinator, a gateway, a server and a client. The sensing station comprises a plurality of sensing nodes which are arranged on a tunnel in the rock body of granite. The sensing nodes are used for measuring rock body surface displacement, rock body surface pressure, rock body deep displacement and rock body deep temperature / humidity. The wireless router set, the coordinator, the gateway and the server are successively connected electrically. The gateway and the server are connected with the client. The wireless router set transmits data which are acquired by the sensing nodes to the server through the coordinator and the gateway. The server processed the acquired data and generates an alarm for abnormal data in a coordinate graph. Dynamic information of the rock body is monitored through a wireless sensor network, thereby measuring the position of rock burst, greatly improving measurement efficiency and furthermore ensuring safety of personnel.

The invention relates to the technology of delivering wafers in the semiconductor wafer machining process, in particular to a device for delivering the wafers processed in a plurality of chambers. The device mainly comprises a lifting motor, a lead screw, a lifting platform, a rotating motor, a rotating platform, at least three mechanical claws and driving mechanisms, wherein the driving mechanisms are used for driving the mechanical claws, and the number of the driving mechanisms is the same as the number of the mechanism claws. The device can go up and down, rotate and stretch out or draw back at the same time, the movement in the three directions is carried out in unit time, therefore, the wafers can be delivered to expected positions rapidly and accurately. Further, due to the fact that at least three mechanical claws are arranged, the problems that the wafers are cross-contaminated, the wafers are lifted too low, the delivering speed is low and the delivering efficiency is low when the wafers are delivered by a traditional wafer delivery device among a plurality of chambers are solved.

The invention relates to physiological sensing device with navigational function that especially integrates with the global positioning system module, the magnetic sensing module, the inertial sensing module and the physiological sensing module which acquire the relative information of the coordinate orientation, the physiologic status and the action state, then the noise filter is used to reducethe disturbance of noise, and it be processed by the signal processor and caution judging device, and then the location of the user, the physiologic status and weather in accident or danger can be known.