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4376results about How to "Simplify the installation process" patented technology

Vehicle information remote monitoring and fault diagnosis system

ActiveCN108469802ARemind and correct irregular driving behaviorReduce failureTransmission systemsRegistering/indicating working of vehiclesHabitEngineering
The invention discloses a vehicle information remote monitoring and fault diagnosis system. The system comprises an intelligent vehicle-mounted terminal which is installed on a vehicle and is used foracquiring vehicle fault information and real-time state information, a cloud server platform and an intelligent mobile terminal. The system is used for instantly analyzing and processing a vehicle fault, and graphically displaying the various kinds of data of a vehicle on the intelligent mobile terminal. The invention also provides a vehicle remote diagnosis method. When the vehicle has a fault,the vehicle-mounted terminal can automatically transmit a fault code to cloud, a cloud management platform analyzes the fault code and matches a corresponding solution scheme to the user vehicle-mounted terminal, nearby selectable repair manufacturers are pushed to a user via GPS, and the user can check the real-time operation state information of the vehicle through the intelligent mobile terminal APP. Through the intelligent mobile terminal, a driving habit and vehicle fault hidden troubles are checked. A driver can correct a bad driving habit through the mobile terminal and potential safetyhazards of the vehicle are reduced.
Owner:WUHAN HUAWEI SECIAL PURPOSE AUTOMOBILE DETECTION

Car heat management system and car

A car heat management system comprises a battery circulating loop, an air conditioner refrigeration loop and a heat management controller, the battery circulating loop comprises a first battery pipeline, a power battery, a battery heat radiator and a heat exchange assembly, and the power battery, the battery heat radiator and the heat exchange assembly are connected to the first battery pipeline. The heat exchange assembly is used for carrying out heat exchange between the battery circulating loop and an external loop. The air conditioner refrigeration loop comprises a first refrigeration pipeline, a second refrigeration pipeline, a fan, a compressor, a condenser and an evaporator, and the compressor, the condenser and the evaporator are connected to the first refrigeration pipeline. The second refrigeration pipeline is connected with the heat exchange assembly, the two ends of the second refrigeration pipeline are connected to the positions, at the two ends of the evaporator, of the first refrigeration pipeline, and the condenser and the battery heat radiator are arranged on the air outlet side of the fan. The heat management controller is used for selectively starting the fan or the compressor to cool the power battery according to the cooling need of the power battery and the environment temperature. The car heat management system is correlated and integrated with a car air conditioning system, the heat load of the air conditioning system can be balanced, and the energy saving effect is good. The invention further relates to a car.
Owner:NINGBO GEELY AUTOMOBILE RES & DEV CO LTD

Heavenly body sensor measuring basis transform method and apparatus thereof

This invention discloses a sort of measuring benchmark conversion method of the astronomical sensing device. The lamp-house simulator, the three-axes rotating floor and the photoelectric autocollimator shelves are fixed in the optical table, the astronomical sensing device is fixed in the inner frame of the three-axes rotating floor. A. Adjust the photoelectric autocollimator shelf and make the light axis to parallel with the inner frame of the rotating shaft. B. The middle frame and the outer frame of the rotational rotating floor obtain the data of the fixed point in different angle, and demarcate the inner parameter and outer parameter of the astronomical sensing device. Ensure the conversion matrix which is from the coordinate of the rotating floor to the coordinate of the astronomical sensing device. C. Measure the vector relation between the vertical vector of the two reflecting surface of the mirror cube and the light axes of the photoelectric autocollimator. Compute the conversion matrix which is from the coordinate of the rotating floor to the coordinate of the mirror cube. D. Compute the conversion matrix which is from the coordinate of the astronomical sensing device to the coordinate of the mirror cube. The product between the ray vectors of the astronomical sensing device and the conversion matrix is the vector direction after conversion. This invention discloses a sort of set which can realize the above method at the same time. The realization of this invention is simple and its precision is high.
Owner:BEIHANG UNIV

Gateway based on LoRa wireless technology

The invention discloses a gateway based on a LoRa wireless technology, and belongs to the technical field of wireless communication equipment. The gateway is in a communication connection with at least one data acquiring node of an Internet of things perceptive level, and used for transmitting relevant data acquired by each data acquiring node to relevant equipment on a network layer of Internet of things. The gateway comprises a LoRa communication module, a remote communication module, a main control module and a power module, wherein the LoRa communication module is connected with each data acquiring node; the remote communication module is connected with the LoRa communication module; the LoRa communication module is connected with the remote communication module through the main control module, and used for controlling the LoRa communication module and the remote communication module; and the power module is connected with the LoRa communication module, the remote communication module and the main control module. The gateway has the beneficial effect that a LoRa wireless communication technology is adopted, and a license-free frequency band is utilized, so that free and wireless communication is realized. The gateway also has the advantages of simple installing process, no need of advanced wiring, high mobility, low communication cost, long communication distance, low power consumption and high interference resistance.
Owner:SHANGHAI HOLYSTAR INFORMATION TECH

Shaft sealing device with magnetic fluids

InactiveCN102537367AReduced seal pressureAutomatically adjust the coaxialityEngine sealsRubber ringMagnetic poles
The invention relates to a shaft sealing device with magnetic fluids, which is characterized in that based on an existing shaft sealing device with magnetic fluids mainly comprising a rotating shaft, a non-magnetic metal shell, magnetic poles, a permanent magnet, the magnetic fluids and a rubber ring, sealing pole teeth made of soft magnetic materials are additionally arranged in sealing pole tooth grooves of the magnetic poles, a sealing pole tooth ring is sleeved on the rotating shaft, the inner diameter of the sealing pole tooth ring is 0.1-0.6mm larger than the diameter of the rotating shaft, the outer diameter of the sealing pole tooth ring is 0.1-0.3mm smaller than the inner diameter of each tooth groove, the thickness of the sealing pole tooth ring is 0.1-0.3mm smaller than the width of each tooth groove, the magnetic fluids are distributed in an annular sealing gap between the rotating shaft and the sealing pole tooth ring, and each magnetic pole comprises two half annular magnetic poles. The positions of the sealing pole teeth of the device can be changed radially along the rotating shaft to adjust coaxiality of the rotating shaft and the sealing pole teeth, uneven distribution of the annular sealing gap in the circumferential direction of the rotating shaft is decreased, reduction of the pressure bearing capacity of the device and abrasion of the rotating shaft and the sealing pole teeth are avoided, and the requirements of sealing components on machining and mounting precision are lowered.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Wireless indoor orientation method based on automatic learning of wireless signal acceptance strength distribution

The invention discloses a wireless indoor positioning method capable of automatically learning the distribution of the signal receiving intensity. The theory adopted by the method is that: a wireless signal propagation model and a parameter are taken as an initial distribution curve of the field intensity; in the operating process of a system, a mobile equipment continuously learns a distribution function of the field intensity by the received signal receiving intensity and an EM (expectation maximum) algorithm, and the exact distribution curve of the field intensity is obtained. After the new distribution curve of the field intensity is obtained, the position of the mobile equipment is estimated through adopting an MMSE (minimum mean square error) statistical estimation algorithm. The provided method is characterized in that: the tedious calibrating process of the wireless positioning system is avoided; when the system is changed, the recalibration can be automatically carried out; and the installation and the maintenance costs of the positioning system are greatly reduced. The positioning method is suitable for various indoor positioning systems using wireless signals, such as a wireless local area network, a wireless sensor network, a Bluetooth or mobile phone network, and the like.
Owner:吴鑫 +2

Aero-engine air rotational flow plasma igniter

InactiveCN103277231AHelps coolingGood for breakdownEngine ignitionMachines/enginesAviationCombustion chamber
Provided is an aero-engine air rotational flow plasma igniter. An insulating sleeve and a supporting sleeve are installed inside a shell, the insulating sleeve is arranged on one side of a separating plate inside the shell, the supporting sleeve is arranged inside the shell, and an air chamber is formed between the outer surface of the supporting sleeve and the inner surface of the shell. An anode sleeve is sleeved at one end, provided with the supporting sleeve, of the shell. A swirler is arranged inside the anode sleeve, and the end surface of the swirler makes contact with the end surface of the supporting sleeve. A cathode installation base is arranged inside the insulating sleeve, and the end surface of the cathode installation base makes contact with a cathode binding post in a coaxial cable. The external thread end of a cathode is fixed inside the cathode installation base and sequentially penetrates through the supporting sleeve and the swirler from top to bottom, and the arc end of the cathode extends out of the lower end surface of the swirler. The aero-engine air rotational flow plasma igniter does not change the structure and the position of an electric spark igniter originally installed in an engine combustor, penetrates through the outer duct of an engine, is installed on the outer wall of the combustor vertically, improves reliability of products, and has the advantages of being small in size, light in weight, simple in structure, and convenient to use and maintain.
Owner:AIR FORCE UNIV PLA
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