313results about How to "No conflict" patented technology

The invention discloses an address automatic allocation method. A Modbus master station sends broadcast address setting commands and sets station addresses of all Modbus slave station devices as the same fixed address; broadcast Modbus slave station device serial number read commands are sent; the Modbus slave station devices return messages responding to the Modbus slave station device serial number read commands; the Modbus master station broadcasts and issues slave station address setting commands carrying the slave station device serial numbers and the slave station addresses in sequence,according to a list of the received Modbus slave station device serial numbers; and the Modbus slave station devices analyze the slave station device serial numbers and the slave station addresses, and if the slave station device serial numbers are equal to own serial numbers, own slave station addresses are modified, thereby realizing address automatic allocation. The invention also provides an address allocation Modbus master station and Modbus slave station applicable to a Modbus protocol, and a system.

The invention provides an idle parking place appointing system and an appointing method wherein the appointing system comprises a cloud platform, an APP mobile terminal, a sentry box terminal and a gate controller. The APP mobile terminal, the sentry box, and the gate controller are connected to the cloud platform through a network so that they are mutually connected through the cloud platform. The APP mobile terminal, through the cloud platform, controls the gate controller to realize the opening of the gate. The appointing method comprises the following steps: publishing information for let by a property owner; appointing a parking place and paying parking fees by a car owner; through the APP mobile terminal to control the opening of the gate, entering the parking lot by the car owner and timed instantly; successfully finding a parking place by the car owner; through the APP mobile terminal to control the gate controller to open the gate, leaving the parking lot by the car owner with the completion of the parking process; and paying fees by the car owner while the property owner earns from the parking place letting. With limited investment yet good effectiveness, the installation and maintenance costs are low. Further, both the system and the method are easy and high efficient to expand and reproduce.

The invention relates to a data synchronous transmission method based on the sqlite. Compared with the prior art, the data synchronous transmission method overcomes the defect that a reliable and quick data transmission method does not exist. The method includes the following steps that a local database is initialized; local data are stored and updated; a network is monitored through a data synchronizing module; data are received through a server; the data are fed back through the server; versions are compared. According to the data synchronous transmission method based on the sqlite, data transmission in a network disconnection environment and a networking environment is achieved, and the data cannot conflict with one another.

The invention provides a CoMP downlink dynamic cooperative cluster selection method based on an SINR threshold and a token, which belongs to the field of wireless communication and mobile communication. The method comprises the following steps: a cooperative cluster is determined according to the cell-edge signal-to-interference-and-noise-ratio (i.e., the poorest user of SINR) to ensure the performance of an edge user; a neighboring cell with maximum interference to the poorest user of SINR is selected for cooperation, and the cooperative gain is maximal; the SINR after user cooperation meets the criterion of a given threshold to determine the size of the cooperative cluster and the threshold can be flexibly adjusted so that a compromise is obtained between the performance and the complexity; and in addition, a cellular cell is divided into different areas, the token is issued in each area and the cooperative cluster is selected based on the token to avoid the problem of collision when different users synchronously select a cooperative cell.

The embodiment of the invention provides a positioning information transmitting method and a positioning information transmitting device. The positioning information transmitting method comprises the following steps of: determining a positioning subframe which transmits a positioning reference signal; and transmitting the positioning reference signal according to the positioning subframe. Through the method, the positioning reference signal is transmitted according to the positioning subframe, the normal transmission of SCH and / or BCH can be ensured, and the transmission of the positioning subframe has no influence on the detection performance of the SCH and / or BCH.

An auxiliary loading device for a bogie frame strength test belongs to the field of auxiliary loading devices for railway vehicle bogie frame strength tests and comprises four vertical torsion load loading seats, two vertical load loading seats, two groups of nut gaskets, transverse load loading units, four braking load loading sets, two snake-shaped swing resistant load loading seats, two gear box load loading seats, two longitudinal load and transverse restrain loading beams, two motor load loading seats, vertical restraint traction bases and two testing traction pull rods. The auxiliary loading device for the bogie frame strength test has the advantages that an original arrangement space is expanded through a plurality of force bearing load loading components with expanding structures, a bogie frame strength test needs not simplify the numbers of a stress loading points, the arrangement space among every application force driving component or force bearing component is sufficient, interference and conflicts cannot occur among the every application force driving component or force bearing component, and the testing results of a simulation bogie in a dynamic comprehensive force bearing state is more accurate and reliable.

The invention discloses a distribution system access control method based on a component, and belongs to the technical field of computer software. The method includes the following steps: a) a user launches an access request; b) a standard delegation decision inteface obtains the user property information in the access request, reforms the user property information into a strategy decision request and then submits to a strategy decision server; c) the strategy decision server searches the existing strategy according to the strategy decision request and obtains a strategy matched with the strategy decision request; d) if the strategy decision request lacks the user property information needed by the matched strategy, then the strategy decision server transfers a property searching module for searching the needed user property information and updating the strategy decision request; e) the strategy decision server makes a decision according to the updated strategy decision request and the matched strategy; f) the standard delegation decision inteface authorizes or ignores the access request of the user according to the decision. The distribution system access control method based on a component can be used for the access control of the distribution system.

The invention relates to a frequency converting control system and control method suitable for a central cooling system of a ship. Energy is saved. Three sea water pumps with 50% flow and the frequency conversion technology are adopted, only one sea water pump is used for frequency conversion operating under medium-low thermal loads, and two sea water pumps are used for frequency conversion operating under high thermal loads. Under the low thermal loads, the temperature of fresh water is controlled by adjusting the bypass amount of a temperature control valve. Under medium-high thermal loads, the temperature of the fresh water is controlled by adjusting the rotating speeds of the sea water pumps. Control precision on the temperature of the fresh water is high, and the response speed is high. Operation is easy, an operator only needs to start one sea water pump, and starting and stopping of the second sea water pump and adjustment of the bypass amount of the temperature control valve and the rotating speeds of the sea water pumps are all automatically completed through an electric cabinet. High reliability is achieved, adjustment of the bypass amount of the temperature control valve and adjustment of the rotating speeds of the sea water pumps are separately carried out, and no conflict is generated. When a frequency converter breaks down, the temperature control valve can be independently used for controlling the temperature of the fresh water. When the temperature control valve breaks down, the frequency converter can be independently used for controlling the temperature of the fresh water, and the temperature of the fresh water cannot be out of control.

The invention provides a failure detection circuit of an embedded dual processor system, comprising a main microprocessor, an auxiliary microprocessor, a watch dog circuit and a power circuit, wherein, the watch dog circuit is connected with the main microprocessor, which is used for monitoring the running state of the main microprocessor and resetting the main microprocessor in case of abnormality; the main microprocessor is connected with the auxiliary microprocessor via a communication circuit, carries out real-time communication with the auxiliary microprocessor and sends an enable signal to the power circuit according to the running state of the auxiliary microprocessor; the power circuit is respectively connected with the main microprocessor and the auxiliary microprocessor, which is used for supplying or breaking off the working voltage of the auxiliary microprocessor according to the enable signal sent by the main microprocessor. The invention can effectively prevent the abnormal state of the main and auxiliary microprocessors in the control system, ensures identical working sequence of main and auxiliary microprocessors, and has the advantages of simple structure, low cost of circuit and high reliability.

The embodiment of the invention discloses a negotiation method of safe algorithm and a terminal for realizing the method, and aims to provide a safe algorithm negotiation method for supporting an operator to use a custom setup safe algorithm. The negotiation method comprises the following steps: a network side acquires a safe algorithm supported by a user device and related to the PLMN identification information to which the network side belongs; the network side selects the safe algorithm used by user device communication according to the safe algorithm supported by the user device and relates to the PLMN identification information to which the network side belongs and a safe algorithm supported by the network side itself; and the network sides informs the user device of the selected safe algorithm. The terminal provided by the embodiment of the invention comprises a storage unit, a receiving unit, an execution unit and a sending unit. Through the method and the terminal disclosed by the embodiment of the invention, the operator can use custom setup safe algorithm without conflict.

The invention relates to an anti-collision method of bus transfer data, which comprises first, monitoring a bus with bus equipment, judging bus state, when the bus is transferring data with high priority grade, abdicating data with low priority grade on the bus to data with high priority grade, meanwhile, triggering a wait bit counter to counter, and continuously monitoring the bus, sending data when the bus has no data with high transmission priority grade, and judging the priority grade of the data which are sent, the data with low priority grade recedes in middle way, abdicating to the data with high priority grade, and meanwhile trigging the wait bit counter to count, and continuously monitoring the bus, and continuously sending the data with high priority grade. The judgment of the state of the bus leads sending data of a sending end not to conflict, and the judgment of the priority grade of data which are sent leads receiving data of a receiving end not to conflict, and the mechanism can not destroy data of high priority grade.

The invention relates to a handheld smart device data security protection method, comprising steps that: whether a password input by a user through human-computer interaction is correct is judged and if so, a setting of a privacy protection status is changed, and if not, the setting of the privacy protection status remains unchanged; and according to a true record of the privacy protection status, device file management software and protected software are hidden, and otherwise, the device file management software and the protected software are shown and used normally. The method of the invention further comprises steps that: 1101) connection between the handheld smart device and a computer via a USB port is detected and judged; 1102) whether the device is in the privacy protection status is judged and if so, a user interface entrance which has a U disc using function is hidden and a logic code of opening the U disc is not performed; and otherwise, normal operation is carried out; 1201) installation or unloading of application software is detected and judged; and 1202) whether the device is in the privacy protection status is judged, and if so, a user operation instruction or a logic code for the installation or unloading is not performed; and otherwise, normal installation or unloading is performed.

The invention discloses an intersection channelization and signal control method of a four-phase clockwise passage enabling pattern. According to the method, during channelization of a road space, a street crossing non-motorway at an intersection is separated into an inner non-motorway body and an outer non-motorway body by a street crossing sidewalk, the street crossing non-motorway body on the outer side of the street crossing sidewalk is used for non-motor vehicles to go straight and move across a street at the corresponding phase, and the street crossing non-motorway body on the inner sideof the street crossing sidewalk is used for non-motor vehicles to turn left for secondary street crossing at each phase; the four-phase clockwise passage enabling pattern is adopted for signal control, and motor vehicles turning right and motor vehicles turning left or going straight at the same inlet channel are separately allowed to pass through. By means of the method, traffic interference among different traffic modes is reduced, intersected and opposite collision is avoided, and potential traffic safety hazards are reduced. Phase linkage is smooth through signal control without setting all-red time; the method is applicable to a situation that the traffic flow of inlet channels in four directions of the intersection is not balanced; the utilization rate of space-time resources is increased.

The invention discloses a master-slave device interconnection system, a master-slave device access request processing method and a computer readable storage medium, the master-slave device interconnection system comprises an APB master device, an APB slave device, a multiplexer and arbiters; the plurality of APB main devices are connected with the input ends of the multiplexer in a one-to-one correspondence manner; the plurality of APB slave devices are connected with the output ends of the arbiters in a one-to-one correspondence manner; and each output end of each multiplexer is connected with the input end of one arbiter. According to the master-slave device interconnection system, different APB master devices can access different APB slave devices at the same time; the idle time of theAPB master device and the APB slave devices can be reduced, the APB master devices and the APB slave devices can be accessed and responded at the same time, and the access efficiency among the devicesin the same system can be effectively improved.

Disclosed are a communication method, device and system in a wireless local area network (WLAN), the method comprising: acquiring the association identifier allocated by an access point (AP) to a station (STA); and establishing a corresponding relationship between the address information of the STA and the association identifier, so as to provide relay communication service for the STA and the AP according to the corresponding relationship. The communication method in a WLAN of an embodiment of the present invention provides relay communication service between an STA and an AP via a relay device, and the AP uniformly allocates an association identifier to the STA, such that each relay device does not have to respectively allocate an association identifier to the STA managed by the relay device, thus avoiding conflicts between the association identifiers of the STAs in the basic service set of the AP, thereby facilitating subsequent communication between the AP and the STA, and improving communication efficiency.

The invention discloses a device for synchronous testing of the magnetic property of a magnetoelectric material and relates to testing of the magnetoelectric material. The device for synchronous testing of the magnetic property of the magnetoelectric material comprises an electromagnet, a direct current power supply, a signal generator, a shielding cover, a Helmholtz coil, a lock-in amplifier, a Hall probe, an exploring coil, a fluxmeter, a gauss meter, a strain gauge, a strain meter, a data acquisition unit and a computer, wherein the Helmholtz coil is placed in the magnetic gap of the electromagnet, the output end of the signal generator is connected with the input end of the lock-in amplifier, the magneto-electricity signal output end of a sample is connected with an input interface of the lock-in amplifier, the output end of the lock-in amplifier is connected with the input end of the data acquisition unit, the output end of the gauss meter is connected with the input end of the data acquisition unit, the output end of the fluxmeter is connected with the input end of the data acquisition unit, the strain meter is connected with the input end of the data acquisition unit, the Hall probe is placed near the sample and is connected to the gauss meter, the exploring coil is wound around the sample, the output end of the exploring coil is connected with the input end of the fluxmeter, and the strain gauge is attached to the surface of the sample and is connected with the strain meter.

A master device and slave device communication circuit comprises a master device, a slave device and a bus, wherein the master device comprises a microcontroller, a power source module and an address setting module; the slave device comprises a microcontroller and a power source module; the power source module of the master device is connected with the power source module of the slave device by the address setting module; the address setting module is used for detecting total currents output by the master device and outputs an ID address setting signal in proportionality constant to the totalcurrents to a new accessed slave device and the master device according to the total currents; the new accessed slave device correspondingly sets an ID address according to the ID address setting signal; and the master device records the ID address that is the ID address of the new accessed slave device according to the ID address setting signal. The master device and slave device communication circuit can automatically set the ID address of the slave device.

The invention discloses a fan control method and system for improving noises f a server, and belongs to the technical field of heat dissipation of servers. According to the fan control method for improving the noises of the server, a switch chip is added on a mainboard to increase the number of BMC distributed I2C addresses, different I2C addresses are distributed to different PCIE trenches, and the I2C addresses of all the PCIE trenches do not interfere; the BIOS of the mainboard recognizes types of board cards in the PCIE trenches and transmits information of the types of the board cards to a BMC; fan control strategies configured for the different board cards are integrated in the BMC; and the BMC calls the fan control strategies which are configured correspondingly according to the number of the recognized board cards and the information of the PCIE trenches. By the fan control method and system for improving the noises of the server, the problem of heat dissipation of the server can be avoided effectively, the noises of the whole server can be reduced by above 10 dB, and the popularization and application value are quite high.

The invention relates to the technical field of automatic control and particularly relates to a smart-lighting remote control system and a smart-lighting remote control method based on a mobile intelligent terminal. The system comprises a control host machine, an intelligent lamp and an intelligent sensor. The smart-lighting remote control system is characterized by further comprising a local mobile intelligent terminal and a remote control terminal which is connected to a wide area network, wherein the local mobile intelligent terminal is connected with the wide area network through a local area network or a mobile network; the local mobile intelligent terminal is connected with the control host machine through the local area network or Bluetooth. The local mobile intelligent terminal is used as data information and a transfer carrier in a control scheme, so that the control scheme remotely issued can be received while the condition of not accessing the control host machine into the wire area network is realized.

The embodiment of the invention discloses a method, a device and a system for collocating a terminal device, which belong to the field of network communication and aim at solving the problem that a gateway and a terminal device can not be uniformly collocated in the prior art. Before the terminal device is allocated, a gateway collocation system is firstly consulted, and then the terminal device is collocated according to the consulted collocation information. The embodiment can be used in a situation that the gateway and the terminal device are respectively managed by different collocation systems.

The invention discloses a process layer tri-play message transport real-time scheduling method. The method includes the steps: slaves transmit time merging requests containing message feature information to a master; the master generates a message transport time node table according to the message transport feature data transmitted by all slaves, enters a mode of merging ready, and informs the slaves of time merging update information; the slaves update their message transport time node tables according to the time merging update information transmitted by the master; the master and the slaves both control message transport according to the same message transport time node tables. According to the method, the master is used to collect and analyze message transport feature data of all slaves in a network, message transport scheduling information, the message transport time node table, of the whole network is generated, the problem of possible message transport conflicts is prevented accordingly, and network delay stability, SV message uniformity and GOOSE message real-time transport are maximally increased.

The invention provides a cable capable of shielding an electromagnetic wave. The cable capable of shielding the electromagnetic wave is characterized by comprising cable cores, insulator layers, a shielding material layer and a protecting layer. The cable cores are made of conductors, the insulator layers covers the cable cores in a surrounding mode, the shielding material layer covers the outside of the insulator layers in a surrounding mode, and the protecting layer covers the outside of the shielding material layer. The shielding material layer is made of a copper iron alloy. The copper iron alloy comprises, by mass, a copper substrate and crystal particles which are dispersed in the copper substrate, and iron serves the main ingredient of the crystal particles. The content of the iron accounts for 5% to 45% of the total weight of the copper iron alloy. The effect of shielding of the electromagnetic wave can be improved, the appearance is more attractive, the weight is lighter, the condition that the conflict is generated due to the fact that a ferrite magnetic core is not utilized appropriately cannot occur, the mechanical strength of the copper iron alloy is extremely good, the diameter of a shielding wire body can be reduced, the weight of the cable is lightened, and the contribution is provided for the operating production.

The present invention discloses an address coding system and method for a suspension controller. The system comprises an encoding control module and a suspension controller; the encoding control module is used for transmitting corresponding address coding control signals to the suspension controller at a corresponding position on a train; the suspension controller is used for reading the address coding control signals at the corresponding position and generating corresponding address codes according to the address coding control signals read by the suspension controller. The suspension controller is not required to be configured with fixed address codes, but obtains the address coding control signals at the corresponding position and generates the corresponding address codes, and therefore, coding can be realized conveniently; coding can be realized without the actions of physical objects such as a DIP switch required; and therefore, poor contact and address code conflict can be avoided. When the suspension controller is required to be replaced, and a new suspension controller reads corresponding address coding control signals and generates corresponding address codes, and an operator does not need to manually read the inherent coding value of the suspension controller, and therefore, the replacement of the suspension controller is more convenient, and replacement errors can be avoided.

The invention discloses a projector control method and device. The control method comprises the following steps that: establishing communication connection with at least one piece of data source equipment; setting corresponding priorities for different pieces of data source equipment; and according to a projection control instruction from the data source equipment with a highest priority, presenting a data signal from the corresponding data source equipment on a projection picture. By use of the method, different priorities are set for the data source equipment connected to the projector, ordered control for multiple pieces of data source equipment is realized according to the priority, and no conflicts are generated. By use of the method, through the setting, a user can conveniently connect multiple pieces of data source equipment to the same projector according to a practical situation, and the projector is controlled to be switched to display corresponding contents.

The embodiment of the invention discloses a sensing base station in a road traffic environment and a message sending control method and device of the base station. The sensing base station comprises:a message classification module which is used for obtaining at least one message to be sent, determining whether the message belongs to a first type of messages or a second type of messages accordingto a target field included in the message, adding the first type of messages into a first message queue, triggering sending of the first type of messages, and adding the second type of messages into asecond message queue; and a time division multiplexing TDMA control module which is used for obtaining a time service signal and time slot resource information allocated to the associated sensing base station, and triggering the sending of the second type of messages after reading the second type of messages from the second message queue when a time slot arrives. According to the embodiment of the invention, various types of messages can be sent to a receiver more timely and reliably.

A ground traffic organization optimization method applicable to separate three-layer three-dimensional intersection is disclosed. The invention relates to the ground traffic organization optimizationmethod applicable to separate three-layer three-dimensional intersection and aims to solve the problems that current traffic delay is generally high and the utilization of space-time resources is low.The method comprises the steps of (1) supposing that a north-south direction is used as the direction of an undercrossing tunnel and an east-west direction is used as the direction of an overpass bridge, wherein specified signals control the running rules of vehicles in each entrance lane and detour waiting lane, (2) supposing that the north-south direction is used as the direction of the undercrossing tunnel and the east-west direction is used as the direction of the overpass bridge, and coordinating signal time assignment of main and pre-signal and north-south direction straight second stage signals, and (3) determining a length G of a north-south straight turnaround waiting zone according to steps (1) and (2) and a road actual condition and carrying out intersection signal time assignment. The method is used in the field of traffic organization optimization.

The invention discloses a short message real-time sending method and system. The system comprises a plurality of web servers, a plurality of task storage lists, a random number storage table and a plurality of forwarding programs. Each forwarding program corresponds to one task storage table. The method comprises the steps that the web servers receive short message sending requests submitted by clients and store the requests to the task storage tables as short message sending tasks, wherein the short message sending tasks comprise target numbers, short message content and state identifiers; the forwarding programs generate identifier random numbers and store the identifier random numbers to the random number storage table; the first number of short message sending tasks with unsent identifiers are searched from the corresponding task storage tables and the state identifiers of the searched short message sending tasks are updated as the identifier random numbers; a plurality of short message sending tasks with the identifier random numbers are extracted from the task storage tables, and the extracted short message sending tasks are submitted to a short message sending platform; and after to-be-sent tasks are submitted and sent successfully, the state identifiers of the tasks are updated as sent identifiers.

The invention provides a smart socket, which comprises a large panel (1), a small panel (2), a bottom box (3), a bearing plate (4), a right plug bush (51), a left plug bush (52), a connecting terminal (6), a real-time detection device (7), a circuit board (8), an upper permanent magnet (91), a lower permanent magnet (92), a coil (10), a movable core (11), a contact pressure regulation spring (12), a moving contact part (13), a fixed contact part (14), a testing device with a testing button (151), and a resetting device with a resetting button (161), wherein the circuit board (8) is provided with electronic components; the back of the bearing plate (4) is provided with a cylindrical pipe (41) vertically connected with the bearing plate; and the inner chamber of the cylindrical pipe (41) runs through the front of the bearing plate (4). The smart socket provided by the invention is a digital, intelligent, integrated and networked terminal device with control, protection and monitoring functions, solves the problem of inadaptability of conventional packaged extensive management of a power grid requirement side to the development of a power grid, and makes the power grid requirement side enter the new stage of delicacy integrated management.