Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

412results about How to "Retrofit small" patented technology

Cross-physical isolation data transparent transmission system and method between intranet and extranet

The invention relates to a cross-physical isolation data transparent transmission system between an intranet and an extranet. The system comprises a first enterprise service bus and a second enterprise service bus which are respectively arranged on the two sides of physical isolation, wherein a first safety data transmission adapter and a second safety data transmission adapter are respectively deployed on the first and second enterprise service buses, the physical isolation is arranged between gateways of the intranet and the extranet for performing network safety area isolation, the first and second enterprise service buses are used for respectively providing calling interfaces and simultaneously communicating with the physical isolation, and the first and second safety data transmission adapters are respectively responsible for safety certification and calibration of integrity and effectiveness of data of the intranet and the extranet. The invention further relates to a cross-physical isolation data transparent transmission method of the system. Improvement of data transmission can be performed under a physical isolation environment through the system and the method, the difficulty in transformation and the workload of the service system can be simplified, and the safety in data transmission can be further enhanced through the safety data transmission adapters.
Owner:MAOMING POWER SUPPLY BUREAU GUANGDONG POWER GRID CORP

Method, device and system for processing application release

ActiveCN105791341ADevelopment and Retrofit SmallEfficient and concise grayscale publishingTransmissionComputer networkApplication Context
The invention discloses a method, a device and a system for processing application release. The method disclosed by the invention comprises the following steps: obtaining an application service request and a grayscale routing rule by an application release node, releasing the application service request belonging to the application release to a server node in a grayscale application environment based on the grayscale routing rule, or releasing the application service request not belonging to the application release to a server node in a non-grayscale application environment, obtaining the application service request released by the application release node according to the grayscale routing rule by a first server node, and invoking a second server node in the grayscale application environment or the non-grayscale application environment based on a cached grayscale node list to provide service for the application service request. By adopting the method disclosed by the invention, the grayscale release of the application can be realized relatively efficiently and simply.
Owner:HUAWEI TECH CO LTD

Air separator by utilizing cold energy of liquefied natural gas

An air separator using the cold energy generated by liquefying natural gas to prepare liquefied oxygen, liquefied nitrogen and liquefied argon is based on existing air separator, and features that the multi-stage circulating nitrogen compressors, LNG heat exchanger and circulated nitrogen heat exchanger are additionally used to form a combined refrigerating system, and an air cooling system is also used.
Owner:UNIV OF SCI & TECH OF CHINA

Refrigerator and control method thereof

The invention discloses a refrigerator and a control method of the refrigerator. The refrigerator comprises a machine shell, refrigerator doors, an RFID module and a controller. The RFID module comprises a reader and a label box. The controller is configured to conduct the steps of monitoring user operation according to a sequence code, read by the reader, of each label in the label box; responding to the user operation, and acquiring operation information and food material information corresponding to a target sequence code, wherein the operation information comprises the operation type and position information; generating an operation record corresponding to the target sequence code according to the operation information and the food material information, and inputting the operation record into a record access database; and changing the storage state of a label, corresponding to the target sequence code, in a label database. According to the refrigerator and the control method of therefrigerator, the independent perception of RFID is achieved through the RFID module, the structural transformation of the refrigerator is small, and the manufacturing cost is reduced. Meanwhile, automatic input operation of relevant information of food material storage and taking operation of a user and automatic updating operation and management of the label database can be achieved, and the intelligence of the refrigerator and the usage experience of the user are improved.
Owner:HISENSE

Method and device for accessing mobile network and user device

The embodiments of the invention provide a method and device for accessing mobile network and a user device. The device comprises a receiving module for receiving EAP successful responding messages from an authentication server, and a sending module for seding EAP successful responding messages and Internet protocol IP address to a user device to an access server. The embodiments of the invention can send EAP successful responding messages returned by the authentication server and Internet protocol IP address to a user device to the access server by utilizing the device for accessing a mobile network. Since basic functions supported by the access server during said process, the modification of an access service can be minimized and accessing to a mobile network can be easily realized.
Owner:HUAWEI TECH CO LTD

Switching control method and device of home network

The invention discloses a switching control method and a device of a home network, which are used for solving the problem that in the existing home network, emergency business load cannot be switched to a UE access-restricted area when area switching is carried out, so the reliability and continuity of the emergency business in the home network are caused to be lower. The switching control method of the home network comprises the steps of: receiving first switching request information which requires to switch UE from a source home base station area to a targeted home base station area, wherein UE bearing information from the side of the source home base station area is contained; and when the targeted home base station area is judged to be the UE access-restricted area, and if UE is judged to have emergency business load which is under construction or activated at the side of the source home base station area according to the bearing information, the emergency business load is controlled to be switched to the targeted home base station area. The invention improves the reliability and the continuity of the emergency business in the home network.
Owner:DATANG MOBILE COMM EQUIP CO LTD

NFC mobile payment communication method based on online payment

The invention provides an NFC mobile payment communication method based on online payment. By means of the method, a payer conducts payment with a receiving party collection terminal through a handheld mobile terminal with online payment mechanism authentication, and both the mobile terminal and the collection terminal are provided with NFC modules. The payment process includes the steps that an order is generated, the order is sent to the mobile terminal, the mobile terminal conducts online payment, and the payment is finished, wherein when the order is sent to the mobile terminal, a secret key form of an asymmetric algorithm is adopted to guarantee communication safety. By the adoption of the NFC mobile payment method, the payment process is convenient to conduct, the required cooperation parties are less, reform to existing systems and devices is less, the cost is low, and application and popularization are facilitated.
Owner:SHENZHEN INTELLIGENT PREFERENTIAL PAY IT

VPN realizing method

The invention discloses an executing method and network of virtual specific network, which comprises the following steps: switching computer of virtual specific network region in the brink equipment of customer side; dividing mark of corresponding port on the brink equipment of customer side as specific virtual LAN of switch-in virtual specific network regional user; allocating virtual specific network region on the brink equipment of network side; adding the switch-in virtual LAN circuit in the virtual specific network region; allocating the switch-in velocity limit in the circuit; allocating general route to connect tunnel GRE on the brink equipment of network side; regarding GRE tunnel as one specific circuit in the virtual specific network region; realizing rapid deployment for virtual specific network.
Owner:STATE GRID BEIJING ELECTRIC POWER +2

Method, device and equipment for interacting with third-party application in instant messaging system

An embodiment of the invention provides a method for interacting with a third-party application in instant messaging system. The instant messaging system provides an open protocol for the third-party application, and the third-party application is provided with an API (application programming interface) generated according to the protocol. The method includes accessing to the second-party application through the API, and acquiring information sent by the third-party application. By the method, a user can invoke related services of the third-party application in the instant messaging system directly, complicated operations when the user acquires the services are decreased, occupancy of time resources is reduced, and services of the third-party application are acquired conveniently and quickly.
Owner:XIAOMI INC

Data permission control method and device for application system clusters

An embodiment of the invention provides a data permission control method and device for application system clusters. The method includes: receiving an access request which a user submits in an application system cluster; when the fact that the user has data permissions is determined according to the access request, acquiring a data permission set corresponding to the user, to be specific, searching for one or multiple characters corresponding to the user, searching for one or multiple standard functions corresponding to the one or multiple characters and searching for one or multiple dimensions corresponding to the one or multiple standard functions; acquiring a current data permission set of the user according to the one or multiple dimensions. The data permission set includes standard data permission sets. The data permission control method and device for application system clusters according to the embodiment has the advantages that parameter-based fine-grained permission control is achieved, few modifications are made to the application system clusters, few invasions are caused to the application system clusters, and accessing is simple.
Owner:ALIBABA GRP HLDG LTD

Cross-chain intercommunication method and system for block chain

The invention provides a cross-chain interconnection method and system for a block chain. The cross-chain interconnection method for a block chain comprises the steps of determining a block chain interconnection and intercommunication theoretical model according to the block chain and a cross-chain demand of the block chain; obtaining an inter-chain interoperation protocol of block chain interconnection and intercommunication based on the block chain interconnection and intercommunication theoretical model; creating a cross-chain distributed application according to a preset rule; and performing a cross-chain operation between two preset block chains through the cross-chain distributed application so as to perform function verification and protocol evaluation on the block chain interconnection and intercommunication theoretical model, thereby realizing optimization of the block chain interconnection and intercommunication theoretical model. According to the cross-chain interconnectionmethod for the block chain, cross-chain intercommunication and interconnection between the block chains can be conveniently, safely and reliably achieved, especially when intercommunication and interconnection are carried out between heterogeneous block chains, transformation of the block chains can be effectively reduced, and therefore the cost of cross-chain operation is reduced.
Owner:西安纸贵互联网科技有限公司

Bypass sludge reduction and silt separation and denitrification and dephosphorization waste water treatment system and method

The invention provides a bypass sludge reduction and silt separation and denitrification and dephosphorization waste water treatment system and a bypass sludge reduction and silt separation and denitrification and dephosphorization waste water treatment method for solving the frequency problems of high sand content in incoming water, low volatile suspended solid (VSS) / mixed liquor suspended solids (MLSS), inadequate carbon source and the like in the conventional denitrification and dephosphorization process. The system consists of a main waste water treatment system having denitrification and dephosphorization functions and a bypass system, wherein the main waste water treatment system comprises a grit chamber and a waste water treatment system having denitrification and dephosphorization functions; and the bypass system consists of a hair separator, a sludge reduction pool, a sludge and silt separator, a silt dewatering system and a chemical dephosphorization system. In the invention, by discharging the sludge and silt and retaining slit organic matters, the silt is prevented from depositing in the waste water treatment system and the VSS / MISS ratio of the sludge in a biochemical reaction pool is improved. By returning the sludge recycled as a carbon source, a carbon source is provided for the main waste water treatment system. By applying chemical dephosphorization in the embedded bypass system, the phosphorus in urban waste water can be removed and recycled chemically at low cost.
Owner:CHONGQING UNIV

Method for realizing uplink QoS (Quality of Service) based on IP access network and multi-service access gateway

The invention discloses a method for realizing uplink QoS (Quality of Service) based on an IP access network and a multi-service access gateway. The method comprises the following steps: the multi-service access gateway judges whether the uplink flow flowing through each link node exceeds the uplink early-warning threshold of each link node according to the uplink early-warning threshold of multiple link nodes on the uplink from a client to the multi-service access gateway; and the multi-service access gateway reduces the flow of the uplink low priority service so as to ensure the QoS of the uplink high priority service flow at the client if the uplink flow of any one link node flowing through multiple link nodes exceeds the uplink early-warning threshold of any one link node. The invention can effectively prevent congestion of the uplink and satisfy the quality of service of the uplink flow of the high priority service at lower reformation and cost.
Owner:CHINA TELECOM CORP LTD

Method and system for collectively removing NOx and mercury (Hg) in coal-fired flue gas by utilizing secondary combustion of biomass charcoal

The invention discloses a method for collectively removing NOx and mercury (Hg) in coal-fired flue gas by utilizing the secondary combustion of biomass charcoal, which is characterized in that: on the basis of the secondary combustion denitrification and the recycling of flue gas, the biomass charcoal is used as secondary-combustion fuel, the characteristics of the biomass charcoal such as low sulfur, low nitrogen, chloride containing, high ash-coke activity, high energy density, zero carbon dioxide (CO2) net emission and the like are utilized, and the biomass charcoal is sent into a secondary-combustion area of a hearth, the combined removal of multiple pollutants such as NOx, Hg and the like in the coal-fired flue gas can be realized through the catalyst reduction effect of anoxic combustion and biomass charcoal as well as the catalyst oxidation effect of chloride contained flue gas and high-activity ash and coke. The invention also discloses a system for realizing the method, which comprises a biomass charcoal preparing system, a coal pulverizing system, a hearth, a combustion system of the hearth, a flue gas recycling system and a boiler tail-gas processing system. The biomass charcoal is used as the secondary-combustion fuel, so the technical advantages of the secondary combustion of the fuel and the recycling of the flue gas can be integrated, and the method and the system have the advantages that: the investment cost and the running cost are low, the denitrification efficiency and the mercury removal efficiency are high, the CO2 net emission can be reduced, and the like.
Owner:NANJING NORMAL UNIVERSITY

Full-sensing monitoring and patrol inspection operation and maintenance system of distribution network equipment

The invention discloses a full-sensing monitoring and patrol inspection operation and maintenance system of distribution network equipment. The switch cabinet monitoring system is used for monitoringthe temperature of key points of the switch cabinet, arc protection and circuit breaker parameters. Distribution line monitoring system: used to monitor the electrical parameters and operating statusof the line, when the line fault occurs, early warning and generation of fault information; Robot monitoring system in power distribution room: it is used to monitor the environmental parameters in power distribution room and patrol the parameters of equipment and instruments; Operation and maintenance system management system: used for on-line panoramic monitoring, statistical analysis and forecast maintenance of distribution network. The switch cabinet monitoring system, the distribution room robot monitoring system and the distribution line monitoring system are all connected with the operation and maintenance system management system through network equipment for exchanging information and control signals. The distribution room and distribution line can be controlled remotely and centrally by the operation and maintenance system management system.
Owner:XUCHANG XUJI CHANGNAN COMM EQUIP

Preparation process of prodan by sodium sulfate method

The invention discloses a process for producing sodium fluosilicate by using sodium sulfate, which comprises the following steps: (1) subjecting the solution of hydrofluorosilicic acid and sodium sulfate with the mol ratio of 1:1.0 to 1.2 to reaction and crystallization; (2) adding solid sodium sulfate to the reaction solution for salt dissolution till the mass percent concentration of the sodium sulfate reaches 15 to 20%; (3) separating the sodium fluosilicate; (4) subjecting the mother solution slating liquid to a circulated process of salt dissolution and reaction. The method utilizes the water of the hydrofluorosilicic acid, saves a large part of water for the salt dissolution and reduces the production of sewage; the salt dissolution by the mother solution is to continue to add excess amount of salt so as to continue to enlarge the size of hydrofluorosilicic acid crystals and increase the precipitation quantity. The utilization rate of the hydrofluorosilicic acid can reach to above 96%, which is far higher than the level of around 80% by prior solution method.
Owner:NORTHWEST UNIV

Relay device, relay server or relay method

The invention relates to the field of communication technologies, in particular to a relay device, a relay server and a relay method, which are used for solving the problems that the implementation complexity of relay equipment is high and a donor base station needs to be transformed greatly in the prior art. The relay method provided by the embodiment of the invention comprises the steps that: an IP encapsulation and de-encapsulation module performs IP encapsulation on a data packet to be transmitted of a relay base station and then transmits the data packet to a signal transceiving module; and the signal transceiving module at a relay terminal receives the data packet after IP encapsulation and transmitted by the IP encapsulation and de-encapsulation module, then transmits the data packet after IP encapsulation to the relay server through the donor base station and first core network equipment, and the first core network equipment performs IP de-encapsulation on the data packet and then transmits the data packet to second core network equipment. An IP address of the first core network equipment and an IP address of the relay terminal belong to a same IP network segment, and an IP address of the second core network equipment and an IP address of the relay base station belong to a same IP network segment.
Owner:CHINA MOBILE COMM GRP CO LTD

Method, device and system for cross-platform conference convergence

The embodiment of the invention discloses a method, a device and a system for cross-platform conference convergence. The method comprises the following steps: receiving an invitation request transmitted by a first application server after a first conference is added, wherein the invitation request is a request for inviting a second terminal under a second application server to enter the request of the first conference; transmitting an invitation calling to the second application server to request to set up a second conference, wherein the invitation calling carries a parameter of a receiving media negotiated with the first conference; after receiving the successful conference setting information transmitted by the second application server, acquiring related transmission parameters of the second media resource serve at the side of the second application server, wherein the related transmission parameters are negotiated with the parameter of the receiving media negotiated with the first conference carried in the invitation calling; and transmitting an invitation to the second application server to invite the second terminal to enter the second conference. During the realization process, the special lines between the enterprises and operators are eliminated.
Owner:SHENZHEN JIESITONG IND CO LTD

Multi-system user incremental synchronization method based on timestamps and mapping strategies

The invention discloses a multi-system user incremental synchronization method based on timestamps and mapping strategies. By using the method, it is only required that the mapping strategies of each business system are provided, and variational timestamps of source system data are used to automatically complete the synchronization of source variational data between various business systems through a figuring method. The method has comparatively fewer assumptions and requirements for the business systems and fewer transformations for the business systems, and has universality. By the arrangement of a user synchronization middleware, the user synchronization middleware is used for extracting incremental data on the basis of the variational timestamps of source system data. Then according to the mapping strategies of the source system and other business systems, the incremental data is converted into a data flow of target business systems, so that the user incremental synchronization is achieved.
Owner:华北计算技术研究所

Weak hybrid power system for thermoelectric conversion based on automobile exhaust, and control method thereof

The invention relates to a weak hybrid power system for thermoelectric conversion based on automobile exhaust, and a control method thereof, wherein the system comprises a thermoelectric conversion unit, an output energy storage unit, a power assembly unit and a finished-automobile energy management unit, wherein a hot end of a thermoelectric device in the thermoelectric conversion unit absorbs heat carried by high-temperature exhaust; a cold end thereof constructs a temperature difference of the cold end and the hot end by cooling action of cooled water to generate direct current electric energy; the output energy storage unit charges a storage battery by using power generation energy of the thermoelectric conversion unit or a B-ISG motor, and stores, or supplies power to automobile electrical appliances of +36V and 12V, and B-ISG; the power assembly unit controls operation states of an automobile engine, the B-ISG motor and a transmission system; and the finished-automobile energy management unit comprehensively manages and controls energy of the system under various working modes. According to the invention, waste heat exhausted by automobile exhaust can be effectively recovered and used so as to increase fuel economy of automobile engine, and be helpful to reduce discharge of automobile exhaust.
Owner:WUHAN UNIV OF TECH

IPTV video content tamper-proofing method

The invention discloses an IPTV video content tamper-proofing method. Two function modules of signature generation and signature verification are newly added in an original process. The signature generation module is used for extracting signatures from video segment files, the signature verification module is used for conducting signature verification on received video files and deciding to permitplaying or not according to a verification result, and if video contents are illegally tampered, signature verification fails, and playing of the videos is not permitted. The novel IPTV video contenttamper-proofing method is mainly used for solving the problem that an existing IPTV video content tamper-proofing method difficultly meets the IPTV video content tamper-proofing requirement in an internet mode, the safety of IPTV video content tamper proofing is improved, the method is simple to achieve, the transformation of an existing IPTV system is smaller, and the video playing speed is alsoimproved.
Owner:天翼智慧家庭科技有限公司

Unmanned rice transplanter automatic steering control system and control method thereof

PendingCN107972732AThere will be no stepping operation phenomenonOvercoming out of sync problemsSteering linkagesGuiding agricultural machinesAutomatic steeringCommunication unit
The invention discloses an unmanned rice transplanter automatic steering control system and a control method thereof. The control system includes a main controller, a CAN bus communication unit, a GPS, an on position machine, a sensor module and a steering control module; the CAN bus communication unit is used for providing preset steering parameters, real-time display rice transplanter positions,speed, a handle position and the other information of the on position machine for the main controller; the GPS is used for determining the present position of the rice transplanter and transmitting the information to the on position machine, and the on position machine compares deviation of the present position and the target route; and the sensor module is used for transmitting the real-time operating information of the rice transplanter to the main controller. Compared with the prior art, the unmanned rice transplanter automatic steering control system and the control method thereof has thecharacteristics that a servo motor is used for controlling steering, the system structure is simple, the modular design is carried out and the maintenance is convenient.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Aluminum electrolysis continuous production method and structure adopting prebaked anode

The invention discloses an aluminum electrolysis continuous production method and structure adopting a prebaked anode. The aluminum electrolysis continuous production method is characterized in that connection grooves (2) are formed in the upper portion of a carbon block body (1) of the anode and connected with a steel claw (7); and when the carbon block body (1) in an electrolytic cell needs to be connected, a new carbon block body (1) is placed above the old carbon block body (1), the new carbon block body (1) and the old carbon block body (1) are connected through fixing protruding heads (3) arranged at the tops of the carbon block bodies (1) needing to be connected and fixing grooves (4) formed in the bottoms of the connected carbon blocks (1) needing to be connected, and the new carbon block body (1) and the old carbon block body (1) are fixed together by filling gaps between the fixing protruding heads (3) and the fixing grooves (4) with sintering feed or pouring materials. According to the aluminum electrolysis continuous production method and structure adopting the prebaked anode, prebaked anode carbon blocks can be produced without anode scraps, the difference between an anode carbon block structure and an existing anode carbon block is not large, and the transformation on a production system is small. The transformation on an existing electrolytic cell is also small, only the connecting steel claw needs to be transformed, auxiliary hooks need to be additionally arranged, and transformation can be achieved without cell shutdown.
Owner:周俊和 +1

3G voice service quality evaluation method based on data mining

InactiveCN103987067ARetrofit smallQuickly locate the cause of voice quality degradationWireless communicationTransfer procedureThird generation
The invention discloses a 3G voice service quality evaluation method based on data mining and belongs to the field of the communication technology. According to the method, a voice quality evaluation model of a 3G wireless communication network is obtained according to the relation between a voice quality value and uplink wireless link network parameters and the relation between the voice quality value and downlink wireless link network parameters through a data mining method, wherein data required by model training are obtained from a signaling monitoring platform of a current network; network physical layer parameters provided by the signaling monitoring platform are input in the real-time evaluation process after the model is established, original voice samples are not needed, real-time monitoring can be conducted on voice service quality, influences of wireless links on voice quality are reflected in the transmission process of a mobile communication network, the influences are the condition of the mobile network where users are located, reasons for voice quality reduction can be quickly located, and consequently a reference is provided for targeted network optimization.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Coal winning machine and mining height system thereof

The invention discloses a mining height system used for a coal mining machine. The system comprises a detection device (1), a control device (2) and a display (3), wherein the detection device (1) is used for detecting the position and the posture of a cutting arm of the coal mining machine to obtain a position and posture signal; the control device (2) is used for receiving the position and posture signal and obtaining a height signal of a cutting roller of the coal mining machine according to a preset policy; and the display (3) is arranged in a cab of the coal mining machine and used for receiving the height signal and displaying the height value of the cutting roller. The mining height system guarantees that an operator can accurately obtain the height of the cutting roller in the cab, thereby guaranteeing the safety of the operator; and meanwhile, the structure reformation to the coal mining machine is less, thereby the generality is improved, and the cost is reduced. The invention also discloses a coal mining machine comprising the mining height system.
Owner:SANY HEAVY EQUIP

Chimeric T cell receptor STAR and application thereof

The invention discloses a chimeric T cell receptor STAR (Synthetic T Cell Receptor and Antigen Receptor), related preparations and drugs, and application of the chimeric T cell receptor STAR in preparation of cell drugs, and also relates to the preparation or an drug composition used for treatment of corresponding diseases such as tumors or infectious diseases.
Owner:CHINA IMMUNOTECH BEIJING BIOTECH CO LTD +2

Energy equipment data association method and system based on Internet of Things identification technology

The invention discloses an energy equipment data association method based on an Internet of Things identification technology. The method comprises the following steps: registering a uniquely corresponding Internet of Things identification code for unregistered energy equipment in a target service system; establishing a corresponding data code for each item of data; establishing a mapping relationship between the Internet of Things identification code and the data code of the target service system according to the relevance between the energy equipment and the data; after receiving an identifier analysis request sent by the terminal, sending the identifier analysis request to each service system finishing identifier registration, so that any service system determines feedback data accordingto a mapping relationship of the service system; and sending the feedback data of each service system to the terminal. By applying the scheme of the invention, the associated information of the energy equipment can be conveniently obtained, the transformation of an original service system is reduced, and the access to a new service system is facilitated. The invention also provides an energy equipment data association system based on the Internet of Things identification technology, and the system has a corresponding effect.
Owner:STATE GRID E COMMERCE CO LTD +2

Hydraulic hybrid power excavator hydraulic system with switching control function

The invention discloses a hydraulic hybrid power excavator hydraulic system with a switching control function, and relates to an excavator hydraulic system, aiming at realizing the excavator hydraulic system and reducing the manufacturing cost. An A port of a second hydraulic transformer is communicated with a rodless cavity oil port of a bucket hydraulic cylinder; a rod cavity oil port of the bucket hydraulic cylinder is communicated with a B port of the second hydraulic transformer; the two oil ports of the bucket hydraulic cylinder are connected in parallel with a first travel constant displacement motor; a loop formed between the bucket hydraulic cylinder and the first travel constant displacement motor is provided with a first switching valve bank; an A port of a third hydraulic transformer is communicated with the rodless cavity oil port of the bucket hydraulic cylinder; the rod cavity oil port of the bucket hydraulic cylinder is communicated with a B port of the third hydraulic transformer; the two oil ports of the bucket hydraulic cylinder are connected in parallel with a second travel constant displacement motor; and a loop formed between the bucket hydraulic cylinder and the second travel constant displacement motor is provided with a second switching valve bank. The switching control over the travel constant displacement motors is realized by using the hydraulic transformers for controlling the bucket and a bucket rod through two valve banks, so that the reconstruction difficulty and cost are reduced.
Owner:HARBIN INST OF TECH +1

Thermal station energy saving device with double adjustment functions

The invention belongs to the energy saving field of central heating, and discloses a thermal station energy saving device with double adjustment functions. The thermal station energy saving device with the double adjustment functions is characterized by comprising a double adjustment control master machine (1), an outdoor temperature sensor (2), a heat exchanger (3), a secondary water supply temperature sensor (6), a secondary return water temperature sensor (7), a secondary bypass pipe (4), a one-way electric adjusting valve (5), a secondary mixed water temperature sensor (8), a secondary mixed water pressure sensor (10), a secondary return water pressure sensor (11) and a water pump inverter (9). According to parameters obtained through monitoring of the outdoor temperature sensor, the open degree of the electric adjusting valve on the secondary bypass pipe is adjusted, a part of return water on the secondary side is enabled to enter the heat exchanger for heat exchanging, and the other part of the return water on the secondary side passes through the bypass pipe and can reach a predicted water supply temperature after being mixed with other water. According to parameters obtained through monitoring of the secondary mixed water pressure sensor and the secondary return water pressure sensor, an instruction is sent to the water pump inverter to adjust the running frequency of a water pump, and therefore the flow rate of the secondary water supply is changed. The thermal station energy saving device with the double adjustment functions achieves climate compensation control, supplies heat according to the needs of users, and reduces the quantity of electricity consumed by the water pump in the operation process.
Owner:BEIJING VALEEN LEADING GREEN BUILDING TECH

Wireless data acquisition device and method of vehicle door controller and drive motor

The invention discloses a wireless data acquisition device and method of a vehicle door controller and a drive motor. The device comprises a data acquisition module, a power module and a monitoring terminal, wherein the data acquisition module is arranged between the vehicle door controller and the drive motor and comprises a master control chip unit, a bus interface circuit unit, a signal acquisition circuit unit, a current acquisition circuit unit, a storage unit and a wireless transmission unit; the master control chip unit is connected with the vehicle door controller through the bus interface circuit unit, is also used for acquiring real-time state information of the drive motor through the signal acquisition circuit unit and the current acquisition circuit unit, is connected with the storage unit and is also used for transmitting a vehicle door state signal and drive motor real-time state information to the monitoring terminal through the wireless transmission unit in real time; operation data parameters of the vehicle door controller and the drive motor can be simultaneously acquired, wiring is not required, the vehicle door controller and the drive motor are slightly modified, and good application prospect is realized.
Owner:NANJING KANGNI MECHANICAL & ELECTRICAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products