33results about How to "Do not interfere with normal work" patented technology

The invention relates to a detection method of electric automobile insulating performance. According to the method, a relay 1 and a relay 2 are employed to connect with an anode and a cathode of a direct current bus respectively, voltage division resistors R1 and R1' are in series connection between the relay 1 and a ground (i.e. automobile body), voltage division resistors R2 and R2' are in series connection between the relay 2 and the ground, direct current source 1 injects a direct current signal to a circuit through a diode d1 and a resistor R3, and a direct current source 2 injects a direct current signal to the circuit through a diode D2 and a resistor R4. Four voltage sampling circuits are provided on the R1', R2', R3 and R4 resistors respectively. Through combining the above circuit with specific sampling and calculating steps, insulating performance detection is realized. According to the invention, a method of injecting direct current by a power source is employed to carry out detection, detection precision is high, resistance of the voltage division resistors can be selected to be a large value, influence on vehicle insulating performance in measurement is small, and normal working of an original vehicle system is not interfered.

The invention provides a high-precision GPS (global position system) distributive time-service method based on ping-pong buffer and a message mechanism. Clock synchronization among special equipment in a space remote control system is realized by a precise clock synchronization policy of hardware on time; and a GPS satellite synchronous clock serves as a clock source, and the time of each piece of special equipment is checked periodically by second pulse. Time information processing operation is completely finished in an FPGA (Field Programmable Gate Array), so that the time synchronization precision of the special equipment is not affected and the normal work of application programs of the special equipment is not intervened. A time-service time source also supports an IRIG-B (Inter Range Instrumentation Group) code time service, wherein the time frame speed of an IRIG-B type code is 1 frame/second, and 100-bit information can be transmitted. After a B type code is decoded, a 1c/s pulse signal, a 10c/s pulse signal, a 100c/s pulse signal. a 1,000c/s pulse signal, BCD (Binary-Coded Decimal) encoding time information and control function information can be acquired, and the synchronization precision can be up to dozens of nanosecond.

The invention discloses a micro-thrust measurement device with a cylindrical target. The micro-thrust measurement device comprises a target system, a displacement sensor system, a target mounting block and a thermal protection system. In the target system, an elastic beam and the target mounting block are connected and positioned through vertical angle aluminium, and the perpendicularity of the elastic beam is guaranteed; the target is mounted at the bottom end of the elastic beam. Through the design to the target, the axial speed of plume is converted into a radial speed, the influence of the target on the plume field of an engine is reduced, and the measurement result is more precise. In the displacement sensor system, a sensor mounting rod is vertically arranged, and the top end of the sensor mounting rod is fixedly connected with the bottom face of the target mounting block; a displacement sensor is mounted at the bottom end of the sensor mounting rod through a sensor mounting plate. In the thermal protection system, the elastic beam is subjected to thermal protection through two sections of ceramic tubes, and meanwhile the thermal protection to the sensor is achieved through a sensor protection cover. The micro-thrust measurement device has the advantages of being capable of achieving the integration and the reliability of a measurement result.

The invention relates to a microwave solid-state power amplifier. The power amplifier works at the environmental temperature ranging from -45 DEG C to +65 DEG C and is used for amplifying a beacon signal and a remote signal between the star and the ground in the communication task, and the solid-state power amplifier adopts multi-stage amplifier cascading, the power amplifier comprises a preamplifier, a driving power amplifier and a final power amplifier connected in series orderly; a microwave signal input end is connected with an input end of the preamplifier, an radio frequency input and output end of each amplifier circuit is connected with a micro-strip isolator; two X-waveband cavity band-pass filters are respectively connected between the microwave signal input end and the preamplifier input end and between an output end of the preamplifier and an input end of the driving power amplifier. The preamplifier also comprises a small signal amplifier and a high-gain microwave integrated power amplifier which are connected in series orderly.

The invention discloses a retractable type movable hoisting platform and a ship comprising the same.The retractable type movable hoisting platform comprises a portal frame, a platform and a retractable system.The platform is arranged at one end of the portal frame, and multiple platform lug plates are hinged to the end, close to the portal frame, of the platform.The retractable system is installed between the portal frame and the platform and used for enabling the platform to rotate relative to the vertical portal frame, so that the platform is switched between a horizontal state and a vertical state.The ship comprises a cabin wall and a storeroom deck.The storeroom deck extends outwards from the cabin wall.The ship comprises the retractable type movable hoisting platform.By adopting the retractable movable hoisting platform, great convenience is brought for achieving safe goods hoisting.

The invention provides an adjacent well distance while-drilling electromagnetic large-range detection system without interfering adjacent well operation. The adjacent well distance while-drilling electromagnetic large-range detection system comprises an adjacent well signal transmitting module, a positive drilling signal receiving module and a ground signal processing module, wherein the adjacentwell signal transmitting module comprises adjacent well sleeves, insulating joints and a low-frequency alternating current power supply; the insulating joints are mounted in the middles of the adjacent well sleeves and spaced from the adjacent well sleeves; the ground surface low-frequency alternating current power supply supplies power to the two parts of the adjacent well sleeves at the two endsof the insulating joints; the positive drilling signal receiving module comprises a non-magnetic drill rod and an MWD, and the MWD detects magnetic field signals generated by current on the adjacentwell sleeves; and the ground signal processing module comprises an MWD signal detecting device and a computer, the MWD signal detecting device receives the magnetic field signals and transmits the magnetic field signals to the computer, and the computer is used for calculating the distance between an adjacent well and a positive drilling well through the magnetic field signals. The adjacent well distance while-drilling electromagnetic large-range detection system has the beneficial effects that in the drilling process, the adjacent well distance is detected while drilling, normal operation ofthe adjacent well is not interfered, the production efficiency is improved, and the detection precision is improved.

The invention relates to an optical cable ink writer which is used for printing characters on a surface of an optical cable. The ink writer comprises a working panel, at least one pair of impressing wheels, a fixed shaft, an ink writing disc and an ink writing belt, wherein the working panel is arranged vertically on the ground; the axis of the at least one pair of impressing wheels is arranged vertical to the working panel; the fixed shaft is positioned at the same side of the working panel together with the impressing wheels and is vertically fixed on the working panel; the ink writing disk is sleeved on the fixed shaft; the ink writing belt is reeled on the ink writing disk and is used for printing characters on the surface of the optical cable; the optical cable penetrates through between the impressing wheels and is vertical to the axis of the impressing wheels; the ink writing belt is arranged in parallel to the optical cable and is inserted between the impressing wheels and the optical cable; the working panel is also provided with a belt collecting disc which is used for reeling the used ink writing belt up again; and the belt collecting disc and the impressing wheels are positioned at the same side of the working panel. The belt collecting disc which is arranged on the working panel can be used for collecting the used ink writing belt neatly, the production line can be maintained, simultaneously the ink writing belt can not interfere the normal working of the optical cable ink writer, and the production efficiency is improved to a certain extent.

The invention discloses a micro-thrust measurement device with a thermal protection system. The micro-thrust measurement device comprises a target system, a displacement sensor system, a target mounting block and a thermal protection system. In the target system, an elastic beam and the target mounting block are connected and positioned through vertical angle aluminium, and the perpendicularity of the elastic beam is guaranteed; and a target is mounted at the bottom end of the elastic beam. In the displacement sensor system, a sensor mounting rod is vertically arranged, the top end of the sensor mounting rod is fixedly connected with the bottom face of the target mounting block, and a displacement sensor is mounted at the bottom end of the sensor mounting rod through a sensor mounting plate. In the thermal protection system, thermal protection to the elastic beam is achieved through two sections of ceramic tubes, and meanwhile the thermal protection to the sensor is achieved through a sensor protection cover. The micro-thrust measurement device has the advantages that the entire measurement device is made to achieve integration through the target mounting block, so that the distance between the measurement device and an engine is very convenient to adjust, and even continuous automatic adjustment is achieved in the measuring process. Meanwhile, the measurement device is subjected to sealing protection to the greatest degree through the thermal protection system.

The present invention provides an abnormal behavior recognition system. The system comprises a data collection layer and a behavior analysis engine, and the data collection layer collects all authorized behavior data, and collects all server-side accounts of a data center, asset data and changes of the asset data; a white list is established according to the authorized behavior data; the change ofthe asset data is taken as an abnormal event, the data of the data acquisition layer is summarized to a behavior analysis engine, each abnormal event is compared with a white list by the behavior analysis engine, it is judged whether the content of the abnormal event belongs to the white list or not, and the abnormal event is made as an abnormal behavior if the content of the abnormal event doesnot belong to the white list; and the behavior analysis engine only gives an alarm for abnormal behaviors. The system has the advantages that the collection layer, the analysis layer and the application layer are transversely extensible, the application modules of the application layer longitudinally integrate the collection layer and the analysis layer, and various safety applications can be continuously and quickly developed according to user requirements.

The invention relates to an online automatic sampling method and device for a machine-made sand production monitoring system. The sampling method comprises the following steps: 1) fixedly mounting a sampling device above a finished product conveying belt of a machine-made sand production line; 2) enabling system processing software to send a sampling command, enabling a motor to drive a sampling arm to rotate circumferentially, and scrapping and sending a finished product on a conveying belt to a funnel; 3) continuously moving the sampling arm until the sampling arm touches the limit switch, then stopping moving and keeping the sampling arm suspended under the action of the counterweight device; 4) setting system processing software to send a repeated sampling command, and performing accumulating in the funnel to obtain the machine-made sand obtained for multiple times; and 5) enabling a metering device to weigh a proper amount of samples, enabling samples to enter a test system, allowing machine-made sand to flow in a recovery system. The device is uniform and flexible in sampling and strong in sample representativeness, does not interfere with normal operation of production equipment, and realizes a convenient and rapid automatic sampling mode of machine-made sand samples on a production line.

The embodiment of the invention discloses an online detection method for the surface shape of a reflector. On the basis of the principle of stripe reflection, a stripe image with ideal periodic changeis displayed through a display, a stripe image formed by the reflection of a reflector machined by an ultra-precision cutting machine is collected through an aperture camera, the surface shape of thereflector is judged and reconstructed according to the curvature of the stripe image, and thus, online detection of the surface shape of the reflector is completed. By using the online detection method for the surface shape of a reflector provided by the embodiment of the invention, a reflector with any smooth continuous surface shape can be detected without optical compensation device or precision position adjustment. The method has a greater dynamic range than the existing online detection method based on a laser interference detector, and takes shorter time and is less affected by the precision of the machine tool and the environmental conditions than the existing online detection method based on point-by-point ranging and scanning by a contact or non-contact sensor.

The invention brings forward an integrated circuit for a daytime running light and a steering light. The integrated circuit for the daytime running light and the turn light comprises a steering line VCC1, a traffic lane VCC2, a common line GND, a triode Q1, a yellow light emitting diode integrated circuit and a white light emitting diode integrated circuit. An emitter electrode of the triode Q1 is in series connection with a diode D6 to be connected to the traffic lane VCC2. The emitter electrode of the triode Q1 is in series connection with one end of the white light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. A base electrode of the triode Q1 is in series connection with a resistor R7 and is connected with the common line GND. A resistor R6 is in parallel connection with the triode Q1. The steering line VCC1 is in series connection with one end of the yellow light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. The invention provides the integrated circuit, which is low energy in energy consumption, long in usage life, and which is energy saving, environmental protective, and space saving, for the daytime running light and the steering light.

The invention relates to an indoor water circulation system, and belongs to the field of building temperature regulation. The indoor water circulation system comprises a heat insulation layer, a pumping assembly, a recycling assembly and an energy storage assembly, wherein the heat insulation layer is arranged on the inner wall of a building, and a cavity is formed in the heat insulation layer; the pumping assembly comprises a water pump and a drainage pipe connected to the water pump, the drainage pipe is located in the cavity of the heat insulation layer, and a plurality of water outlet holes are formed in the drainage pipe in the length direction; the recycling assembly comprises a recycling box and a recycling pipe arranged on the recycling box, and the recycling pipe communicates with the cavity of the heat insulation layer; and the energy storage assembly comprises an energy storage box, and the energy storage box is connected to the end, away from the water pump, of the drainage pipe. The indoor water circulation system has the effect that the humidity in the plant is not increased while the plant is kept at a low temperature.