74results about How to "Strong upgradeability" patented technology

The method comprises: newly adding a communication scheduling layer into original data link layer of Ethernet; in relation to the standard channel using TCP/IP, newly adding a real time channel; according to the greatest common divisor of control cycle in the actual control area, using a three segmentation dividing principal to divide macro cycle into three time segmentations on time axis; the bus arbitration uses a approach of combining the distribution with the concentration, and uses a time slot distribution based scheduling approach to send the cyclic data relating to the realization of control function in the time segmentation, uses the centralized scheduling approach with priority controlling function to send the system data and non cyclic data in the time segmentation; all slave devices in the system keep the time consistence with the master device by using a clock synchronous algorithm; the logic addressing is made based on the device ID; realizing the real time Ethernet determinacy communication.

A reusable business performance management integration framework provides high performance and maximum efficiency for data transfer of general ledger data. The system issues commands to extract data from a named data source and then processes, tracks, prepares and delivers the data to a named system designation. The system identifies unique data intersections and synchronizes and/or reloads data against data intersection patterns without the use of primary keys. Integration templates may be applied to the basic framework. Each template contains the map for data transmission between a given general ledger system and the destination application type.

A transponder satellite communication navigation positioning system relates to the field of space technology. The system is equipped with a high-precision atomic clock at a ground communication navigation reference station, and the satellite orbit data is given by the satellite orbit determination system; the satellite integrity is given by the monitoring system The data forms the navigation message, and the ranging code composed of pseudo-random codes forms an integrated baseband signal, which is modulated by spread spectrum to form a navigation signal carrier, which is transmitted through the antenna and forwarded by 3 to 9 satellites in a certain geometric distribution in space The device converts the frequency and forwards the downlink, and broadcasts the signal to the coverage area; the ground user terminal receiving device receives the navigation signal carrier, and despreads and demodulates it to obtain the navigation data, thereby determining the position, speed and time of the user terminal receiving device. The invention has the advantages of low investment, guaranteed accuracy, convenient and flexible system maintenance and management, and dual functions of navigation and communication, so that the navigation and positioning accuracy can reach meter-level precision or be better than meter-level precision.

A method for realizing passive light network operation and management is that general labels of the general multiprotocol label exchange protocol are applied to realize data forward multiple addressing base, the labels are taken as the basis of data service sorting forward. The label exchange path is applied to realize the forward of direct user end to user end, the strengthened route protocol is used to realize uniform flow engineering of passive light network and back bone network, the strengthened signaling protocol is used to realize the uniform label distribution of the passive light network and back bone network and the network management structure is applied to realize a uniform network management platform of the passive light network and backbone network.

The invention relates to a high-availability industrial Ethernet redundancy method, which comprises the following steps: adding a link redundancy entity on an original data link layer of the Ethernet for managing the sending and receiving of data frames of the Ethernet; setting two network adapter drivers relative to an original protocol stack for managing two network adapter interfaces; connecting a double-connected node which comprises the link redundancy entity and the two network adapter drivers to two independent networks respectively through two network adapters; adding a redundancy control tracker for the data frames on the link redundancy entity for distinguishing the data frames with the same content; sending the data frames which have the same content and is provided with the redundancy control tracker to two mutually-independent networks by the double-connected node through the two network adapters; keeping effective frames and discarding copy frames; and setting up a node table. The method has the characteristics of transparency, self-healing property and compatibility and the like; and the reconstruction thereof is simple, and the safety performance of the system is increased so as to enable the system to have high usability.

A wave power generating equipment (1) includes a buoy (3) and a power train (2). In the transmission unit there is a driveshaft (11), which is driven to rotate either when the buoy rises or sinks, yet always in the same direction. The driveshaft is mechanically coupled to one of the rotating parts (21') of an electric generator (21) and drives this to generate electric current. Further on there is provided an energy accumulation device (105), which is also coupled to the driveshaft to accumulate energy when the buoy rises or sinks and the driveshaft rotates and which is then used to drive the generator at the other of the rising- and sinking motions. The coupling between the energy accumulation device and the driveshaft can go by the generator's second rotatable part (21'), the air gap between the generator's parts and the generator's first part. The coupling over the air gap gives a torque, which drives the second part to rotate along and which also counteracts the rotation of the driveshaft. The generator's second part is driven by the energy accumulation device to rotate in the other direction, when the torque from the driveshaft does not exceed the counteracting torque.

The invention relates to an LED large screen control system featuring integration of synchronous and asynchronous control, which can have the compatibility of synchronous and asynchronous application, facilitates engineering construction and maintenance and has high reliability, expandability and upgradability. The technical proposal of the invention is that the invention is characterized by comprising a control computer, a master control panel and an LED drive circuit, wherein, the computer is connected with the master control panel by a DVI interface or an asynchronous communication port, the master control panel is connected with the LED drive circuit by the Ethernet.

The invention relates to an air quality monitoring node based on ZigBee wireless technology. The traditional equipment has high cost and limited monitoring range. The air quality monitoring node of the invention comprises a power management module, an air quality parameter acquiring module, a microprocessor module and a ZigBee wireless communication module, wherein the power management module supplies power for the air quality parameter acquiring module, the microprocessor module and the ZigBee wireless communication module; a plurality of transducers in the air quality parameter acquiring module output signals to the microprocessor module after being converted by an I/V switching circuit; and the ZigBee wireless communication module is connected with a serial peripheral interface of the microprocessor module. The invention has the advantages of strong real-time property, multiple data types, wide covering area, strong communication capacity and high transmission speed.

In the field of photonic integrated communication, a method and an apparatus for filtering locking are provided, so as to solve the problem in the conventional wavelength locking technology that any increase of the wave number also incurs increases in costs and circuit complexity, and it is difficult to extract dithered information. The method and apparatus for filtering locking employ a centralized wavelength locking method of injecting a single dither to a Photonic Integrated Device (PID)/Photonic Integrated Circuit (PIC), thereby reducing circuit board area and control circuit complexity. A weak dither signal can be accurately extracted by means of a combination of analog filtering and digital filtering. The technical solution is appropriate for use in photonic integrated systems in which two or more PID/PIC chips with multi-wavelength modules are cascaded.

An electrohydraulic servo control system used to simulate automobile road is prepared as connecting input end of industrial computer to output end of displacement transducer and connecting their output ends to input ends of proportion-integration-differential circuit, connecting output end of proportion-integration-differential circuit to input end of servo valve driver, connecting output end of servo valve driver to input end of servo valve, connecting output end of servo valve to input end of actuator and connecting output end of actuator to input end of displacement transducer.

The invention discloses a control method of an intelligent memory card. The invention fully utilizes the existing bus resource of the memory card and is additionally provided with a value added application module in the memory card, thereby being capable of implementing the function expansion by the value added application module, being convenient to have the value added service expansion of the value added service operator, and having stronger compatibility and scalability. Otherwise, the invention implements the management of the intelligent memory card via command data package by the application program, thereby being capable of guaranteeing the normal operation of the intelligent memory card.

The invention discloses a safe starting method and device. The method comprises the steps: in a second memory, loading a second program through a first program, wherein the first program is stored ina safe address space of a first memory; loading an operating system through the second program in a common address space of a third memory; loading a third program through the second program in the safe address space of at least one of the second memory and the third memory; and reading the encrypted data in the file system of the operating system into the safe address space of the third memory through the third program. Loading and decryption of large-scale security data can be realized while hardware resource requirements of an SRAM and the like are reduced, leakage of chip security data isprevented, illegal attacks are avoided, and the security of devices such as a chip and the like is improved while the system cost is reduced.

The invention relates to an aviation big data intelligent analysis method based on remote embedded data collection. According to the method, aviation big data is utilized to analyze and monitor the health condition of an aircraft and carry out fault diagnosis. Through the method, on the one hand, integration of multiple monitoring means such as onboard videos, audio, a warning system and a flightparameter system is realized, and a system can record and store more flight data; and on the other hand, aviation big data application software is embedded into an airborne computer system to realizereal-time monitoring of the aircraft, meanwhile, the application software is continuously upgraded according to the latest research achievement, and the data stored in the system also can be subjectedto trend analysis on the ground in combination with historical data and can be utilized again in teaching and scientific research work.

The invention relates to an embedded type sensing server and a data control method thereof. A server is embedded into an embedded type system and is used as an embedded server; a sensor is accessed into an expansion board; a plurality of multi-channel expansion boards can be connected; an embedded type server main board is connected; a central server is further connected; and finally a sensing service network platform is connected finally. The data control method comprises the following steps: after the sensing server is powered on, the sensing server embedded type system and an acquisition module are started; the central server is connected actively; a handshake protocol is transmitted to the central server so as to start normal data acquisition circulation; and after the central server receives a formative data result transmitted by a sensing server device, the public issuing of the data is carried out at the sensing service network platform uniformly. The embedded type sensing server provided in the invention can be connected with various sensor devices; and moreover the sensing device data can be uploaded actively; after the local data are processed, the data are transmitted to the central server or a platform databank through various transmission modules, so as to interact with a client.

An improved line replaceable unit (LRU) of modular design for aerospace applications that has a plurality of removable LRU modules to enhance manufacturability, serviceability, interchangeability and upgradeability of the LRU.

The invention discloses a reservoir bank hydro-fluctuation belt landslide and collapse array-type early-warning system, which comprises a 3*3 array composed of tilted alarms. Each tilted alarm is connected with a total control device through a wire. Each tilted alarm comprises a shell, wherein a power supply device and a monitoring device which are connected with each other are arranged in the shell from top to bottom in sequence, and a fixing part is connected to the lower end of the shell. When the water level of a reservoir is lowest, namely a hydro-fluctuation belt is in the maximum exposed area state, the reservoir bank hydro-fluctuation belt landslide and collapse array-type early-warning system can be arranged in a reservoir bank hydro-fluctuation belt area with the landslide or collapse risk; once a soil body is tilted or displaces, the resistance value of photoresistors is changed along with the change of the illumination intensity due to tilting, at the moment, a micro-current electric signal receiver transmits information to a processing module, after processing and identification, early-warning information is issued through a transmitting module, residents are helped toevacuate in time, reservoir management personnel are informed to conduct disposal, and the loss of life and property is avoided.

The invention relates to a sewage treatment electronic control system based on SOPC technique, consisting of a CPU mainboard module, a plurality of subboard IO expansion relays, a plurality of subboard IO expansion modules and a dipolar private bus. The CPU mainboard module realizes bidirectional connection with the plurality of subboard IO expansion relays through the private bus; and each subboard IO expansion relay realizes bidirectional connection with the plurality of subboard IO expansion modules through the private bus. The invention has strong reliability, ensures strong functional expandability and upgradability by adopting an FPGA structure described by hardware, achieves hundreds of thousands of controllable digital amount I/O interfaces and analog amount I/O interfaces of a controller for users to expand easily, and overcomes the defect of low I/O cost performance of general programmable controllers.

The invention discloses a single body effect target device suitable for measurement of target shock wave pressure of a movable explosion field. The effect target device is mainly characterized by being composed of a base, a response membrane, a pressing ring, a buffering pad, a bottom cover and pressing bolts; external shock waves act on the effect target device and a working area of the responsemembrane, so that the response membrane is plastically deformed and sunken towards a lower sealing hole, the maximal deflection value is measured, and the pressure peak of the shock waves is obtainedaccording to a dose-effect relationship of deformation of the membrane and the effect of the shock waves. The device has the significant advantages that the mass and size of the effect target device are greatly reduced, movement and disassembly are facilitated, the processing cost can be reduced at the same time, and the processing period can be shortened; the effect of fixing the response membrane is reinforced, the area where the response membrane is plastically deformed is controlled, and the measurement precision of the shock wave pressure is guaranteed on the condition that the mass of the device is reduced; a deflection testing unit interface is reserved for the response membrane, the upgradability of a shock wave pressure effect target of the movable explosion field is improved, andthe requirement of the target of the movable explosion field for the measurement of the shock wave pressure is met.

The invention relates to copper zinc tin sulfur quantum dots and a preparation method thereof, and belongs to the field of novel nanometer materials. 1-10 g of copper zinc tin sulfur quantum dots are contained in a solution per 100 mL, and the particle size of the quantum dots ranges from 3 nanometers to 20 nanometers. The method comprises the steps that firstly, copper salt, zinc salt, tin salt, alkyl sulfhydryl and fatty amine are added into a three-mouth flask, stirring and heating are performed in an opening system at the temperature of 180 DEG C for a reaction for 5 min, then the solution is cooled to 60 DEG C, and a quantum dot solvent and a quantum dot precipitant are added to obtain a turbid solution. Centrifugal is performed on the turbid solution in a centrifugal machine for 10 min, and the quantum dot solvent is added into obtained precipitates. All the adopted raw materials are low in cost, and the copper zinc tin sulfur quantum dots are rich in content and low in toxicity, greatly lower the reaction cost and are particularly applicable to mass production.