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231results about How to "Easy to connect and use" patented technology

Multi-communication protocol conversion method used for wireless video route

The invention discloses a multi-communication protocol conversion method used for wireless video route, which comprises a private interface module, a common interface module and a target platform interface conversion module; wherein, the private interface module is interacted with a monitoring front-end (PU) via RS-485 interface; the common interface module invokes substrate interfaces related to PU to provide unified interfaces for target interfaces; the target platform interface conversion module is connected with manufacturers and telecom service platforms via RTSP or SIP protocol and carries out messaging interactions which is in accordance with target platform protocol in terms of different operator platforms. The method in the invention transfers original signal data stream of video router end products transmitted through inherent communication protocol interface into data stream which adopts use agreement of the target platform in order to switch in different target business platforms. The method provided in the invention improves the feasibility of equipment reuse, enhances flexibility of equipment updating, ensures the possibility that front-end equipments use data modules from different communication protocols, and strengthens the flexibility of data bandwidth and transmission.
Owner:南京中新赛克科技有限责任公司

Processing device and processing method for removing nitrate from ground water

The invention discloses a processing device for removing nitrate from ground water, which mainly comprises a water outlet pipe, a quartz sand filter unit, a backwash water inlet pipe, a magnetic ion exchange (MIEX) resin processing unit, a water inlet, a first peristaltic pump, a second peristaltic pump and an MIEX resin regenerating unit, wherein the top part of the processing device is provided with a water outlet pipe; the quartz sand filter unit is arranged below the outlet pipe; a water distribution pore plate is arranged at the bottom of the quartz sand filter unit; the surface of the water distribution pore plate is covered by water filtering filter cloth; the backwash water inlet pipe is arranged below the quartz sand filter unit, and the MIEX resin processing unit is arranged below the backwash water inlet pipe; the water inlet is arranged at the bottom of the processing device; a water inlet water distribution pore plate is arranged above the water inlet; an outlet for resin to be regenerated of the MIEX resin processing unit is connected with the inlet of the MIEX resin regenerating unit through the first peristaltic pump; and the outlet of the MIEX resin regenerating unit is connected with the inlet for the resin to be regenerated of the MIEX resin processing unit.
Owner:HOHAI UNIV

Optical division multiplexing transmission and reception method and optical division multiplexing transmission and reception device

An object of the present invention is to implement optical multiplexing transmission and reception in which an OCDM channel is added without changing the used wavelength bandwidth of the existing WDM channel or without changing the time slot allocated to the existing OTDM channel. Hence, one of the embodiments of the present invention is constituted as follows. The OCDM signal generation section generates an encoded optical pulse signal by encoding an optical pulse signal. The encoded optical pulse signal is inputted to the wavelength disperser and the time waveform of the encoded optical pulse signal is shaped to be outputted as a shaped and encoded optical pulse signal. The WDM signal generation section generates an optical wavelength division multiplexing signal. The OCDM signal extraction section decodes the OCDM reception signal by using the same code as the time-spreading/wavelength-hopping code for each channel and generates a decoded OCDM reception signal. The shaped and encoded optical pulse signal component that is contained in the decoded OCDM reception signal is restored by the inverse-wavelength disperser and a reproduced optical pulse signal is generated. Only the autocorrelation waveform component of the optical pulse signal constituting the OCDM transmission signal is extracted from the reproduced optical pulse signal by the first threshold value judgment section. In the WDM signal extraction section, the second threshold value judgment section extracts the WDM signal of each channel from the WDM reception signal.
Owner:OKI ELECTRIC IND CO LTD

Multifunctional irrigation machine

The invention discloses a multifunctional irrigation machine, and belongs to the field of water-saving irrigation. The multifunctional irrigation machine comprises a machine framework, a hose reel, a support, a travelling tyre, a water inlet hose and a water outlet hose; the hose reel is arranged above the machine framework, and the travelling tyre and the support are arranged below the machine framework; and one end of the water inlet hose is connected with one end of the water outlet hose, a metering valve is arranged at the other end of the water inlet hose, and a ball valve and a multifunctional connecting device are sequentially arranged at the other end of the water outlet hose. The irrigated water is metered and controlled through the metering valve, and the multifunctional connecting device can be quickly connected and used with multiple efficient water-saving irrigation devices, so that diversified small water sources such as water in deep wells of highlands, water in rain collecting cellars of gentle slopes and terraces, water in shallow wells of ravines, water in small rivers and ponds and the like are fully and efficiently utilized. In conclusion, the multifunctional irrigation machine has many advantages of small volume, low manufacturing cost, quick connection, wheel-type movement, hose reeling, metering irrigation and control and the like.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Low-frequency longitudinal vibration transducer used for oil well sound wave communication and manufacturing method thereof

The invention provides a low-frequency longitudinal vibration transducer used for oil well sound wave communication and a manufacturing method thereof. The low-frequency longitudinal vibration transducer comprises a radiation head (1) and at least two crystal stack modules (14). Each crystal stack module is formed by piling piezoelectric crystal plates and metals alternately. Every two adjacent crystal stack modules (14) are connected end to end and generate longitudinal vibration low-frequency sound waves after being connected with the positive pole and the negative pole of a power source. The radiation head (1) is fixed to the front end of the longitudinal vibration transducer and used for outputting the low-frequency sound waves generated through the crystal stack modules (14). According to the low-frequency longitudinal vibration transducer, the piezoelectric crystal plates and the metals are piled alternately, and thus radiating can be conducted effectively; and meanwhile, through the modular design, the operation simplicity and convenience and assembling reliability are greatly improved, and the problems of difficult machining and assembling and liable fracture during application caused by simplex long and thin prestressed screws are effectively solved.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Optical division multiplexing transmission and reception method and optical division multiplexing transmission and reception device

An object of the present invention is to implement optical multiplexing transmission and reception in which an OCDM channel is added without changing the used wavelength bandwidth of the existing WDM channel or without changing the time slot allocated to the existing OTDM channel. Hence, one of the embodiments of the present invention is constituted as follows. The OCDM signal generation section generates an encoded optical pulse signal by encoding an optical pulse signal. The encoded optical pulse signal is inputted to the wavelength disperser and the time waveform of the encoded optical pulse signal is shaped to be outputted as a shaped and encoded optical pulse signal. The WDM signal generation section generates an optical wavelength division multiplexing signal. The OCDM signal extraction section decodes the OCDM reception signal by using the same code as the time-spreading / wavelength-hopping code for each channel and generates a decoded OCDM reception signal. The shaped and encoded optical pulse signal component that is contained in the decoded OCDM reception signal is restored by the inverse-wavelength disperser and a reproduced optical pulse signal is generated. Only the autocorrelation waveform component of the optical pulse signal constituting the OCDM transmission signal is extracted from the reproduced optical pulse signal by the first threshold value judgment section. In the WDM signal extraction section, the second threshold value judgment section extracts the WDM signal of each channel from the WDM reception signal.
Owner:OKI ELECTRIC IND CO LTD

Cylindrical lithium ion battery cover plate, cylindrical lithium ion battery and production method of cylindrical lithium ion battery

The invention discloses a large-capacity and large-size cylindrical lithium ion battery cover plate which comprises a cylindrical cover body; the cover body is provided with an anode binding post and a cathode binding post, wherein the anode binding post comprises an anode inner connector and an anode external connector, and the cathode binding post comprises a cathode inner connector and a cathode external connector; the cover plate is characterized in that the diameter of the cover body is greater than or equal to 35 mm, the cover body is provided with an explosion-proof hole and a fluid supplementing screw hole which penetrate through the cover body, the explosion-proof hole is provided with an explosion-proof plug for plugging the explosion-proof hole, and the fluid supplementing screw hole is provided with a locking screw for plugging the fluid supplementing screw hole; a cylindrical lithium ion battery comprises a battery core body sealedly packaged in an aluminum outer shell through the cover plate, and two ends of the battery core body are respectively provided with an anode seat and a cathode seat; the production method comprises battery core body preparation, baking, soaking, assembling, post-processing and other steps; the cover plate has the advantages of simple structure and convenient connection and use, effectively prevents explosion of the lithium ion battery, prolongs the service life of the lithium ion battery, and improves heat dissipation effects and use performance.
Owner:HUNAN HUAHUI NEW ENERGY

Machining equipment with turnover clamping mechanism

The invention belongs to the technical field of machining, and relates to machining equipment with a turnover clamping mechanism. The machining equipment comprises a bottom plate, a first groove is formed in the top of the bottom plate, a double-shaft motor is fixedly connected to the bottom of the inner wall of the first groove, and two output shafts of the double-shaft motor are fixedly connected with a first lead screw and a second lead screw correspondingly. The machining equipment with the turnover clamping mechanism has the beneficial effects that a third motor in a driving assembly works, a driving gear and a driven gear can be driven to rotate in a meshed mode, then a fourth rotating shaft can be driven to rotate, the purpose of driving a containing table to rotate is achieved, then the purpose of rotating a workpiece on the containing table is achieved, the purpose of adjusting the machining direction of the workpiece is achieved, a clamping assembly can be driven to rotate through work of a second motor, the workpiece clamped by the clamping assembly can be driven to rotate by means of running fit of a third bearing and a third rotating shaft, and the purpose of overturning machining of the workpiece is achieved.
Owner:苏州华擎广告服务有限公司

Static flow guide branch pipe dosing type pipeline dosing mixer

The invention relates to a static flow guide branch pipe dosing type pipeline dosing mixer, which is characterized by comprising a cylindrical pipe body connected in a fluid pipeline through a flange, wherein a cylindrical dosing center distribution chamber is arranged at the central position of the pipe body in a manner of sharing the central line with the pipe body, a plurality of flow guide blades and a plurality of dosing branch pipes are fixedly arranged between the outer wall of the dosing center distribution chamber and the inner wall of the pipe body, the plurality of flow guide blades are uniformly and radially arranged along the radial direction of the pipe body, the plurality of dosing branch pipes are located on the same plane, communicated with the dosing center distribution chamber and provided with medicine discharge holes, and the flow guide blades are extended to the water facing side port of the pipe body along the axial direction; the dosing center distribution chamber is connected with a total medicine supply pipe communicated with a medicine source; the water facing end face of the dosing center distribution chamber is a convex conical surface; a sealing cover is covered at the pipe orifices of the dosing branch pipes; a support is arranged on the pipe body. The static flow guide branch pipe dosing type pipeline dosing mixer provided by the invention has the advantages of ensuring uniform medicine mixing, improving the mass transfer efficiency, guaranteeing the water discharge quality, improving the medicine utilization rate and reducing the energy consumption.
Owner:TIANJIN HUASHUI WATER CONSTR
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