103results about How to "Data transmission is accurate" patented technology

The invention belongs to the field of wireless communication, and particularly relates to a self-upgrade method for equipment in a remote online monitoring system. The method is characterized in that: each piece of terminal equipment performs self-upgrade and self-maintenance through the remote online monitoring system consisting of a terminal table tool, a data acquisition unit and a background server based on a GPRS (General Packet Radio Service). The method mainly comprises the following steps that: the background server manages an application program and version information; the data acquisition unit periodically inquires a version log and downloads a new version program; the data acquisition unit realizes self-upgrade and upgrades the terminal table tool; and after the new version program is updated successfully, skipping is performed and an old version program is still kept for later use. In the method, the GPRS, storage space management, a file sub-package mechanism, a transmission response mechanism, a mode for continuous transmission at break-points and an IAP (Internet Access Provider) program programming mode are combined, and the accuracy and reliability of data transmission are ensured; and under the condition of not influencing normal use of a user, the equipment upgrading and maintaining problems of large quantity and wide distribution are solved quickly and efficiently.

The invention relates to a glare control system based on Internet of vehicles and a control method of the glare control system. The system comprises a GPS (global positioning system) module used for judging the current position of a vehicle; a communication module connected with the GPS module for realizing data transmission among the vehicles; an information processing module connected with the communication module for processing the received information and information of the vehicle to judge whether meeting or whether the meeting is finished and send a corresponding command to an executing module; and the executing module connected with the information processing module for executing the command sent by the information processing module. The system and the method provided by the invention have accurate data transmission and sensitive reaction in an operation process, the vehicle-mounted glare control system can automatically switch a high beam and a dipped headlight according to the distance among the vehicles within a preset range so as to achieve the anti-glare purposes and effectively reduce safety accidents.

An emulation system includes a central time source generating a time reference and an emulated spacecraft control processor which contains an embedded processor that provides an emulated input/output interface to communicate simulated spacecraft data. The embedded processor processes the simulated spacecraft data and contains a real time clock engine having a real-time clock period. The system further has a first simulation that processes attitude control system data from the emulated spacecraft control processor to simulate an attitude control system of the spacecraft in real-time. The first simulation engine operative to produce sensor data for input to the emulated spacecraft control processor based on the simulated system dynamics and adjusts the real time clock period in response to the time reference.

An exemplary embodiment of the present disclosure illustrates an automated mass production method, adapted for an automated mass production system in manufacturing at least an electronic device having a storage unit, the method includes steps of: determining a protocol type of the Auto Handler to select one of the agents; establishing a first communication protocol communication between the MP tool module and the selected agent; establishing a second communication protocol communication between the selected agent and the Auto Handler; the Auto Handler outputting a processing command to the selected agent; the selected agent converting the processing command into a MP tool module executable MP tool instruction; and the selected agent outputting the corresponding MP tool instruction to the MP tool module so as to have the MP tool module executed the MP tool instruction to automatically perform a corresponding mass production process to the electronic device.

The invention discloses a vehicle distance anti-collision early warning device and a method based on the internet of vehicles. The vehicle distance anti-collision early warning device comprises an information acquisition unit, an alarm unit, a data processing unit and a power supply circuit. The distance between the current vehicle and a nearest vehicle ahead is acquired through setting a directional antenna, and acceleration, speed and direction information of the vehicle is transmitted and received through wireless transmitting and receiving terminals. The whole device is simple in structure, the directional antenna is integrated ingeniously, a reading range is limited, and data transmission between vehicles is enabled to be accurate and fast. The early warning method is characterized in that safe vehicle distance judgment is carried out through the data processing unit according to the driving direction of the vehicle, and the alarm unit is triggered to give out alarm signals if the distance between the current vehicle and the nearest vehicle ahead is less than the minimum safe vehicle distance between two vehicles. The vehicle distance anti-collision early warning device is additionally provided with the directional antenna and the wireless receiving terminal, and enables distance measurement to be more accurate by being combined with an installation position of the wireless transmitting terminal. A defect that the existing anti-collision early warning device is affected by the external environment is effectively avoided.

The invention discloses an aerospace plane inertial navigation embedded software online updating method which comprises the following steps: extracting an effective source program code by utilizing atarget file generated by engineering compiling; Compiling a monitoring program, and switching a software state to a data programming state after receiving a program updating instruction; Upper computer software is compiled, the source program code file is subjected to data processing, and a data packet is sent to an inertial navigation system through a serial interface; Writing the compiled monitoring code into an external FLASH space in advance by using an emulator; In the running process of the monitoring software, analyzing the data packet, writing the obtained code data of the applicationsource program into a specific address of FLASH, and checking the written data at the same time; and when the FLASH is restarted after being powered on next time, skipping to execute the application program solidified in the FLASH. According to the invention, the accuracy of data transmission can be ensured, the inertial navigation performs multiple verifications on the received data frame according to the instruction frame format, the accuracy of data receiving is greatly improved, and the reliability of the system is ensured.

The invention relates to the field of of a fire-fighting emergency lighting and evacuation indication system of a modern intelligent building and particularly relates to a centralized control fire-fighting emergency lighting and evacuation indication system and an implementing method thereof. The centralized control fire-fighting emergency lighting and evacuation indication system consists of an emergency lighting controller, an emergency lighting centralized power supply, an emergency lighting power distribution box and a centralized power supply emergency lamp. By a network of the centralized control fire-fighting emergency lighting and evacuation indication system architecture with the centralized power supply, in the case of a fault, bottom layer equipment reports the fault to a host in a main reporting mode, a report is displayed on a software operation interface, the audible and visual alarm is simultaneously carried out to remind monitoring personnel and the routing inspection is uninterruptedly carried out in 24 hours; great manpower and material resources are saved; the difficult problem of daily maintenance and overhauling of a conventional emergency marker lamp is solved; the safety coefficient of the building is improved; and the centralized control fire-fighting emergency lighting and evacuation indication system has a fault routing inspection function of the bottom layer equipment. The regulation on the optimal escaping route when a fire occurs is implemented. The system is linked with a fire-fighting alarm system to carry out operations of control, command sending, stroboflash implementation, indication of emergency exits and the like on the bottom layer equipment.

A method, system, device and software product for comparing the contents of memory components in electronic devices. A data transmission connection is established between the electronic devices, and device identifiers and checksum values are determined in the electronic devices. An initialization message is transmitted from a first electronic device to a second electronic device, the message comprising a device identifier and a checksum value. The device identifiers of the first and a second electronic device and the check-sum values are compared with each other, as a result of which the contents of the memory components are caused to correspond to each other, or the contents of the memory components are noted to correspond to each other.

A data transmitter receives a reference current from a current generator and outputs as a current signal a current obtained by multiplying the reference current by a given number in accordance with the value of transmit data. A data receiver, on the other hand, receives the current signal from the data transmitter to generate a receive signal, while receiving a reference current from the current generator to generate a reference signal which is necessary for level determination of the receive signal. In this manner, the reference currents, from which the current signal and the reference signal are respectively generated, are supplied from the current generator that is used in common by the data transmitter and the data receiver.

The invention relates to a heat-exchanger unit remote control system in the heat exchange control field, the technology is mainly characterized in that: the system is composed of a main control machine which is positioned at a control center, a modulation demodulator which is connected with a communication interface thereof, control boxes of heat-exchanger units which are distributed in each heat supply station and modulation demodulators which are connected with the communication interfaces thereof by connection via a public telephone virtual network, and the heat exchanger unit control boxes are connected with a temperature sensor in a heat supply pipeline, a pressure sensor, a regulating valve, a circulating pump, a water supplementing pump and an outdoor temperature sensor. The heat-exchanger unit remote control system can carry out the real-time monitoring and the control of the operation situations of all the heat-exchanger units, once the devices of the heat supply stations are detected to have the faults, the processing can be carried out immediately, thus ensuring the normal operation of a heat supply system, automatically adjusting the opening degree of the regulating valve of a primary network, avoiding the waste of the resources due to the excessive heat supply or the inconvenience of a user due to the insufficient heat supply and stably supplying the heat to the user of a secondary network.

The invention discloses a drone ground station system. The drone ground station system mainly comprises a master control computer, a communication module, a power supply module, a display module and an input module. The drone ground station system has the advantages of a drone can be controlled in real time, data transmission is accurate, and the cost is low.

The invention relates to a data connector, in particular to a switchable data connector which comprises an insulating frame, a plug and a PCB. The insulating frame is provided with a frame sliding rail, the plug is located in the insulating frame, the plug is provided with a sliding button which is connected to the frame sliding rail in a sliding mode, the PCB is fixedly connected in the insulating frame, a male plug contact and a female plug contact are arranged on the PCB, and the plug is connected between the male plug contact and the female plug contact in a switched mode. The sliding button arranged on the switchable data connector is connected with the insulating frame in the sliding mode so that the plug can slide out of the insulating frame or contract back to the insulating frame as needed, structural switching between the male plug and a female socket is achieved, meanwhile, due to the fact that the plug is connected with the male plug contact and the female plug contact on the PCB in the switched mode, the switching effect of a data transmission mode during switching of the male lug and the female socket is better, data transmission is more accurate, and the user experience sense is improved.

The invention relates to a data transmission method for redundancy protection measurement and control of a monitoring system. The method is applied to protecting, measuring and controlling the monitoring system of redundancy configuration of apparatuses A and B. At first priorities of the apparatuses A and B are arranged in a multi-source data processing module, data provided by the apparatuses A and B are respectively packaged to form data source objects A and B, the data source objects A and B respectively pass by a front communication processing module and are input in the multi-source data processing module. Based on operation states of the apparatuses A and B at present, the multi-source data processing module selects a data source in one of the apparatuses to process and then submits data to SCADA. The SCADA performs business processing to the data submitted by the multi-source data processing module. If processing instructions need to be published, the SCADA transmits the processing instructions to the multi-source data processing module. Based on the operation states of the apparatuses A and B at present, the multi-source data processing module selects one of the apparatuses to transmit the processing instructions. The method guarantees high efficiency and accuracy of data transmission.

The invention discloses a method and a device for determining an RSSI (Received Signal Strength Indicator) value of a channel, and access point (AP) equipment. The method comprises the steps that A, an RSSI value in a received message is acquired, whether a current RSSI value of an AP is an initial value is determined, if so, Step D is executed, and if not, Step B is executed; B, an absolute value of a difference between the current RSSI value of the AP and the acquired RSSI value in the message is calculated, whether the absolute value is greater than a preset difference threshold value is determined, if so, Step D is executed, and if not, Step C is executed; C, the RSSI value of the AP is readjusted according to the current RSSI value of the AP, the acquired RSSI value in the message and a preset average value; and D, the acquired RSSI value in the message serves as the current RSSI value of the AP. With the adoption of the scheme, the RSSI value of the AP can be determined more precisely.

The invention discloses a tension control system based on a numeric quantity communication mode. The system comprises a programmable logic controller (PLC), and a control part for an unreeling part, an introduction part, a host part, an extraction part and a reeling part which are connected with the PLC; an unreeling B shaft frequency converter, an unreeling A shaft frequency converter, an introduction traction frequency converter, a host frequency converter, an extraction traction frequency converter, a reeling A shaft frequency converter and a reeling B shaft frequency converter of all the parts are vector frequency converters; all the vector frequency converters are connected with the PLC through respective numeric quantity communication buses respectively; and the PLC is connected with a human-computer interface through a communication cable. Compared with the prior art, the invention has the advantages that: the tension control system has a high real-time property and high stability, makes data transmitted accurately, and fulfills the aims of saving energy sources and reducing cost at the same time.

The invention provides a cell handover method and device. The cell handover method comprises the steps of issuing an information list of an MTC (Machine Type Communication) cell to a terminal, therebyenabling the terminal to measure signal quality of the MTC cell according to the information list of the MTC cell; receiving the signal quality of the MTC cell reported by the terminal; and determining a relationship among the signal quality of the MTC cell, the signal quality of a serving cell of the terminal and the signal quality of a neighbour, and instructing the terminal to hand over to theMTC cell when the relationship among the three pieces of signal quality satisfies a first preset condition, wherein the serving cell of the terminal is a non-MTC cell. According to the method and thedevice, the reliability of the cell handover method can be improved.

The invention relates to a data forwarding apparatus and method. According to a user requirement, a mapping relation between network ports and service ports can be preset. A connected relation between the network ports and the service ports has diversity. Thus, the data forwarding apparatus is more widely used. When a fault occurs to a service port or the service port is closed, the network ports may transmit data through other service ports in order that data transmission is more accurate.

The invention relates to an isotopic density imaging device for archaeology based on the nuclear engineering. When the radioactive rays from the isotope excitation source pass the non-uniform detected object, the degree of the attenuation is inverse ratio with the density of the detected object, so the excitation source is put in the earth by the stem tube and the controller controls detector array composed by 20 detectors which detect the excitation beam intensity by the rotary type and the translation type to transform the energy into the impulse signal which is amplified by the amplifier. The multiple tracks of impulse range analyzer forms the signal into the measurement spectrum according to the energy difference and memory the counting rate in every energy range, at last it transfers the spectrum to the CPU and image to get the density distributing, so it can guide the archaeology work.

The invention discloses a multi-point measuring device for live detection of a metal-oxide lightning arrester. The multi-point measuring device comprises multiple sets of current isolator wiring devices and a main test device. Each set of current isolator wiring devices consists of current sampling wire clamps of one group of lightning arrester three-phase leakage ampere meters, a digital-to-analog conversion module and a slave wireless data transmission module. The current sampling wire clamps are used for short circuit of leakage ampere meters. The main test device includes a main wireless data transmission module, a function arithmetic unit and a display terminal. According to the invention, the multiple sets of current isolator wiring devices are designed and each current isolator wiring device set corresponds to one lightning arrester group and has an own communication address, so that an anti-collision problem in wireless communication can be solved. The test host and a voltage isolator with a reference voltage are fixed beside a certain bus voltage transformer terminal box; and after the test worker completes current isolator wiring work of all lightning arrester groups at the earlier stage, testing can be carried out beside the test host.

The invention relates to a position detection system with an auxiliary cylinder. The position detection system with the auxiliary cylinder is characterized in that a position detection device is externally arranged on a running mechanism and the position of the running mechanism is detected by utilizing the principle that a position detection magnet and the running mechanism synchronously operate. The position detection system with the auxiliary cylinder provided by the invention has the advantages that detection accuracy is high, maintenance cost is low, fixed position detection or double-position detection can be realized and the position detection system with the auxiliary cylinder can operate under the conditions of strong vibration and severe outside environment.