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42results about How to "Strong signal penetration" patented technology

Community intelligent passing control system and method based on narrow band Internet of Things

The invention provides a community intelligent passing control system and method based on narrow band Internet of Things and belongs to the technical field of Internet of Things. The system is an intelligent wireless control system composed of a narrow band Internet of Things (NB-IoT) communication technology, a network technology, a cloud technology and a control technology and is applied, but not limited to the fields including elevators, access control, parking lots and the like of a community. The system is a whole set of solution for community intelligent passing. The system comprises a mobile terminal (APP (Application) or a Wechat applet) of a user, a property management platform, a cloud server, an NB-IoT communication module, a controller, an expansion board, a license plate recognition camera and a two-dimensional code display device. Compared with other methods, the system has a plurality of incomparable advantages of massive connection, deep coverage, ultralow power consumption, low cost, stability and reliability and the like; the system is an only technical solution for realizing effective communication in scenes with relatively weak signal coverage; and furthermore, an owner can pay property management fee, car parking fee and the like through a cell phone, and troubles that the owner goes to a property management center back and forth are avoided.
Owner:徐东哲 +2

Positioning system and method in ship compartment

The invention discloses a positioning system and method in a ship compartment. The positioning method comprises the following steps: transmitting information including ID, a transmitting signal intensity value and the like through broadcast frames by positioning beacons arranged in the compartment; enabling people carrying positioning tags to enter the compartment, scanning and receiving ID of themultiple positioning beacons and a receiving signal intensity value RSSI by Bluetooth modules of the positioning tags, and then sending out the information and positioning tag ID wirelessly through aLoRa module; and receiving the information sent out by the positioning tags and then forwarding the information to a positioning server by a communication base station, calculating the value of the distance between each positioning tag and the corresponding positioning beacon by the receiving signal intensity value and the transmitting signal intensity value, and then acquiring the position information of the positioning tags in the compartment through a positioning algorithm. The positioning system can stably run in a severe environment which is high in dust concentration, obvious in vibration and large in noise and is filled with paint volatiles, the positioning precision can be high, and positioning requirements in a construction environment can be met.
Owner:SHANGHAI SHIPBUILDING TECH RES INST +1

Intelligent household control system

The invention discloses an intelligent household control system. The intelligent household control system comprises an intelligent gateway used for controlling and monitoring other equipment, an on-off control device used for controlling on and off of household electrical appliances, a situation switch used for receiving a radio frequency signal emitted by the intelligent gateway, an intelligent hand-operated terminal used for communicating with the intelligent gateway through the Internet or the local area network, an alarm device used for emitting an alarm signal, a transponder used for communicating with the intelligent gateway and communicating with the external equipment through a serial port, a monitoring camera used for monitoring outdoor and indoor places, a door sensor used for emitting a radio frequency signal during opening and closing of doors and windows, and a monitoring device used for monitoring smog, combustion gas, human bodies and the environment, wherein the situation switch, the on-off control device, the alarm device, the transponder, a detection device and the door sensor are all connected with the intelligent gateway. The intelligent household control system can be applied to outdoor and indoor places such as families, offices and factories and can be in matching with an E-serial intercommunication system indoor set for use.
Owner:FOSHAN LANTIAN NETWORK SCI & TECH CO LTD

Low power consumption wide area network technology and Mesh fusion-based ubiquitous access method and application system

ActiveCN107148071AReduce power consumptionTo achieve the purpose of long-distance transmissionAssess restrictionNetwork topologiesOutdoor areaTechnology fusion
The invention discloses a low power consumption wide area network technology and Mesh fusion-based ubiquitous access method and an application system. 4G network signals in an outdoor area or an indoor area where terminal devices are deployed densely are poor. To solve the above problem, the invention provides an access method based on both the low power consumption wide area network technology and the Mesh technology. Multiple lower power consumption wide area network base stations make up a wireless Mesh network, and each low power consumption wide area network base station serves as a Mesh node, so as to realize a route forwarding function. The low power consumption wide area network base station is equipped with a 4G module, so that the 4G network can report the data to a business server through route forwarding as long as any base station is connected with the internet. The lower power consumption wide area network technology and the stability and reliability of the Mesh network are fully used, terminal access and Mesh network backhaul are realized through the low power consumption wide area network technology, and the data can be transmitted and reported smoothly even if the 4G signal of a base station is poor.
Owner:深圳市兆能讯通科技有限公司

Wheeled soccer robot

The invention discloses a wheeled soccer robot. The wheeled soccer robot comprises a chassis; a lower end face of a polygonal frame structure; omnidirectional wheel mechanisms which are connected to the lower end surface of the chassis in an annular array and are used for driving the chassis to move; a translation positioning mechanism which is fixedly arranged in the middle of the upper end faceof the chassis and used for recording coordinates of the chassis driven by the omnidirectional wheel mechanisms to move; a soccer ball kicking mechanism which is arranged on one side of the upper endsurface of the chassis and used for driving a soccer ball to move; and a soccer ball collecting and releasing mechanism which is arranged on the other side of the upper end surface of the chassis andis used for receiving and releasing the soccer ball. The wheeled soccer robot can automatically move, integrates ball shooting and ball receiving, and can not only shoot soccer balls, but also shoot various balls with different sizes.
Owner:FUJIAN UNIV OF TECH

Positioning and orientation method based on double magnetic beacons

InactiveCN105928511AAvoid the problem of large attenuation of intensityReduce mistakesNavigation by terrestrial meansMagnetic tension forceSignal source
The invention provides a positioning and orientation method based on double magnetic beacons. Two magnetic beacons which are mutually perpendicular and are prepared by two sets of solenoids with known coil diameters, winding numbers, and electric currents are used, two magnetic beacons are installed on a known position as a signal source, a magnetometer is installed on a positioned target, and the magnetometer is used for real time measurement of data; output frequencies of the two magnetic beacons are set, in the magnetic beacon 1, x axis frequency is f1 and y axis frequency is f2, in the magnetic beacon 2, x axis frequency is f3 and y axis frequency is f4, and the two magnetic beacons are in initial positions of a whole coordinate system; n data are extracted from the magnetometer installed on target to be positioned by using a sample frequency which is more than twice the maximum frequency of the magnetic beacons; Fourier decomposition is carried out for acquired data, two groups of signals which are corresponding to frequencies of the two magnetic beacons are obtained respectively, the target is determined according to H1, H2, H3 and H4, and direction vectors of a position of the garget are determined: the position of the target is determined according to the two direction vectors, and the two direction vectors can be used for determining two straight lines.
Owner:HARBIN INST OF TECH

An intelligent lifesaving system based on NFC and LoRa communication and unmanned aerial vehicle technology

The invention belongs to the field of emergency rescue and rescue, and relates to intelligent distress signal transmission, in particular to an intelligent rescue method and system based on NFC near-field communication, LoRa low-consumption long-range communication technology and unmanned aerial vehicle technology. According to the method and the system, the LoRa communication equipment carried onthe unmanned aerial vehicle platform is used for collecting the help seeking information sent by the LoRa node under the extreme environment condition that a conventional communication environment islacked or damaged, so that the state of a rescue target is determined, and a communication channel between the rescue target and the target is constructed. The mobile terminal in the system serves asa user interface terminal, activates the lifesaving system through NFC communication and sends out help seeking information in time. The LoRa node communication module has the advantages of being lowin power consumption, high in penetrating power, long in remote communication distance and the like, is suitable for information communication under the conditions of natural disasters and severe living environments, and can dynamically form a communication network with an LoRa gateway carried on an unmanned aerial vehicle platform to transmit rescue target characters, positions and other information.
Owner:上海上晟电子科技有限公司

Integrated circuit device, display panel and display device

The present invention discloses an integrated circuit device, a display panel and a display device. The integrated circuit device comprises a first substrate and a plurality of touch signals and a plurality of display signal terminals arranged on the first substrate, the touch signals and the display signal terminals are configured to perform corresponding binding connection with a plurality of connection signals arranged by a non-display area of the display substrate, and the integrated circuit device also comprises an supersonic wave fingerprint identification device arranged on the first substrate. The integrated circuit device is applied to the display device which has a fingerprint identification function and has front panel which does not need to reserve an opening like a fingerprint identification module in the prior art, and therefore the screen rate of the display device can be improved; and moreover, because the penetrability of signals of the supersonic wave fingerprint identification device is high, and therefore, a protective layer with harshly required thickness is not needed, and the manufacturing cost of the display device is greatly reduced.
Owner:BOE TECH GRP CO LTD

Audio and video radio transmission system and transmission method

The invention discloses an audio-video wireless transmission system and a transmission method, wherein, the system comprises a wireless audio-video central station and a wireless audio-video mobile terminal; when the central station and the mobile terminal carry out audio-video wireless transmission by adopting a WLAN transmission channel, the wireless audio-video central station detects the quality of a signal transmitted from the wireless audio-video mobile terminal in real time; when the signal quality is reduced to an early warning value, the two adopt a multicarrier transmission channel, a central station image is synchronously switched to the multicarrier transmission channel; and the WLAN transmission channel keeps monitoring, when the signal quality of the WLAN transmission channel is increased to a preset value, an interface of the WLAN transmission channel is restored, and the multicarrier transmission channel is cut off. The invention organically combines the WLAN and multicarrier proposal together, realizes the full utilization under different source conditions, and reliably realizes the real-time transmission of audio-video and data under the complex environment.
Owner:SHENZHEN YUANFU INNOVATION ELECTRON

Deep accurate mining ground and underground personnel positioning and navigation system combined with Internet of Things

The invention provides a deep accurate mining ground and underground personnel positioning and navigation system combined with the Internet of Things. The system is composed of a navigation equipmentterminal, a location service base station, a ground monitoring command system, and underground environment monitoring equipment; and the navigation equipment terminal is provided with a visual displayscreen, a micro-control unit, a micro inertial navigation module, a tag identification and positioning module, a GPS module, a multi-sensor detection module, an electronic map navigation module, an early warning module, a communication module and a power supply. According to the deep accurate mining ground and underground personnel positioning and navigation system combined with the Internet of Things provided by the invention, the positioning and navigation of personnel and vehicles in the deep well where a GPS signal is difficult to reach is realized, the location distribution of the underground personnel and vehicles is grasped through a ground monitoring system, so that monitoring and command of the personnel and vehicles are realized; the underground environment is sensed through thecommunication module and the multi-sensor environment monitoring module, so that the occurrence of dangers is prevented; when the dangers occur, people can timely escape and rescue through a communication and positioning and navigation module, thus the life and property safety of the underground personnel and mining area personnel can be guaranteed to the maximum degree.
Owner:CHINA UNIV OF MINING & TECH

Beidou GPS dual-mode positioning method, positioning terminal and positioning system

The invention relates to a Beidou GPS dual-mode positioning method, positioning terminal and positioning system. The method comprises steps of receiving satellite positioning data information, and according to the satellite positioning data information, reading a second pseudo range between the Beidou GPS dual-mode positioning terminal and a positioning satellite; receiving a difference factor broadcast by a base station and correcting the second pseudo range according to the difference factor so as to obtain a second real range between the Beidou GPS dual-mode positioning terminal and the positioning satellite; and according to the second real range and the satellite positioning data information, calculating the precise coordinate of the Beidou GPS dual-mode positioning terminal, thereby finishing positioning. According to the invention, according to the difference between a measurement position and an actual position between the base station and the positioning satellite, the difference factor is generated, and according to the difference factor, the measurement position of the Beidou GPS dual-mode positioning terminal is acquired and corrected, so the precise position of the Beidou GPS dual-mode positioning terminal is obtained, and the high precision positioning of the position is achieved.
Owner:WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD

Wearable emergency alarm system based on NFC and LoRa communication technologies

The invention belongs to the field of safety protection alarm, and relates to an emergency alarm system and an implementation method, in particular to a wearable emergency alarm system and method based on NFC near-field communication and LoRa low-consumption long-range communication technologies. The invention provides an intelligent alarm system which activates a wearable alarm device through a mobile phone NFC signal and sends an alarm signal to a monitoring background in a LoRa communication mode under the condition that a conventional communication environment is lacked or an emergency situation occurs. The wearable alarm device combining the NFC communication function and the LoRa node function has the advantages of low power consumption, long time efficiency, strong penetrating power, long communication distance, high response speed, strong concealment and the like, is suitable for rapid and continuous alarm under the conditions of natural disasters, safety crisis, severe livingenvironment and the like, and can be linked with a LoRa gateway carried on an unmanned aerial vehicle platform to meet the system requirements of emergency alarm, rapid positioning and rescue.
Owner:上海上晟电子科技有限公司

Online monitoring system for hazardous chemical substance transport vehicle

The invention discloses an online monitoring system for a hazardous chemical substance transport vehicle, and belongs to the technical field of industrial Internet of Things and informatization. The system comprises five layers of architectures, namely a data acquisition layer, a data access layer, a data center, an application layer and a display layer, so that the system has better stability andexpansibility, and the functional requirements of the system are met. According to the invention, the NB-IOT network transmission technology is adopted, and a better technical scheme of the Internetof Things is provided; a driver can adjust or early warn danger information according to vehicle parameters so as to handle the danger information in time; on-line detection information management personnel can see each vehicle parameter and video information, discover an early warning or non-standard driving place and timely remind drivers and passengers to correct, so that the omnibearing on-line monitoring of the hazardous chemical substance transportation process is realized.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES +2

Train autonomous operation system based on UWB range finding

The invention discloses a train autonomous operation system based on UWB range finding; the train autonomous operation system comprises a signal processing unit, a communication module, a train control unit, a wheel shaft rotating speed module and a radar velocity measurement module; the output ends of the wheel shaft rotating speed module and the radar velocity measurement module are electricallyconnected with the input end of the signal processing unit; the output end of the signal processing unit is electrically connected with the train control unit; the signal processing unit is electrically connected with the communication module; the communication module is connected with a server through wireless signals; the signal processing unit is connected with a UWB range finding module; theUWB range finding module comprises a UWB generator, a base band, a microprocessor and an UWB antenna. The train autonomous operation system based on UWB range finding is low in energy consumption, high in range finding accuracy, strong in signal penetration ability, employs multi-correction to realize positioning range finding under weak signal conditions, thus ensuring the autonomous operation accuracy.
Owner:成都九壹通智能科技股份有限公司

Landmine detection device based on UWB pulse electromagnetic waves

The invention discloses a landmine detection device based on UWB pulse electromagnetic waves. The landmine detection device comprises a main processing module, a UWB signal transmitting assembly, a signal receiving and conditioning assembly, a high-speed ADC acquisition assembly, a single-pole double-throw switch K1 and a receiving and transmitting integrated antenna, wherein the main processing module conducts data interaction with the UWB signal transmitting assembly and the high-speed ADC acquisition assembly, the antenna serves as an electric field sensor to receive an echo signal in addition to a transmitting end for transmitting a pulse electromagnetic wave signal and can transmit the received signal to the signal conditioning assembly for signal processing, the signal is processed into data by the high-speed ADC acquisition assembly afterwards, then the data is transmitted to the main processing module, and whether a detection area contains a landmine or not is judged according to echo acquisition information. The landmine detection device has the beneficial effects that the detection device conducts detection by using ultra-wide-band pulse waves, transmitted electromagnetic pulses have the characteristics of rich frequency spectrum, wide frequency band, small width and the like, the anti-interference capability is strong, and the landmine detection precision is significantly improved.
Owner:HUNAN UNIV OF SCI & TECH

A fire-fighting fire scene temperature measurement and positioning system and method based on NFC and LoRa technologies

The invention belongs to the field of firefighting rescue and relates to an intelligent firefighting fire scene temperature measurement and positioning system, in particular to an intelligent firefighting fire scene temperature measurement and positioning system and method based on NFC near field communication and LoRa low-consumption long-range communication technology. The method and system fordynamically and rapidly deploying a large number of fire scene temperature sensing devices and collecting fire scene temperature distribution and physical position information through LoRa communication equipment under the condition of a fire scene environment are achieved. The system is composed of a temperature measurement system node device integrated with a temperature sensor and a LoRa communication node and a gateway device integrated with a LoRa gateway and background service control. The unmanned aerial vehicle can be adopted to dynamically release and deploy the temperature sensing nodes and the communication gateway device, is suitable for being applied to building fire scenes or other natural disasters and severe living environments, can be integrated with a human-computer interface based on an NFC communication protocol, and can quickly and conveniently carry out personnel position positioning and text information transmission.
Owner:上海碁实智能科技有限公司

NB-IoT-based intelligent wireless methane monitoring device, system and method

The invention provides an NB-IOT(Narrow Band)-based intelligent wireless methane monitoring device, a system and a method. The device can comprise a main control MCU, an NB-IOT module, a methane sensor, a GPS chip and a sound-light alarm module,the NB-IOT module, the methane sensor, the GPS chip and the sound-light alarm module are all communicated with the main control MCU through serial ports, and the main control MCU receives methane concentration obtained by monitoring a to-be-detected environment through the methane sensor, controls the GPS chip to obtain position information of the to-be-detected environment and controls the NB-IOT module transmit the methane concentration and location information to a data and service center on the Internet of Things cloud platform through a transmission network; and the main control MCU controls the sound-light alarm module to give an alarm when the methane concentration reaches a preset threshold value.
Owner:CHINA JILIANG UNIV

NB-IoT technology-based low-energy consumption smoke detection and alarming device

The invention relates to an NB-IoT technology-based low-energy consumption smoke detection and alarming device, which comprises a CPU module, a communication module and a battery detection module, wherein the communication module and the battery detection module are electrically connected with the CPU module respectively; and the CPU module comprises an integrated circuit U2 in a model of STM8L151K4T6. The device is used for detecting the smoke concentration in air, a local alarm is given once exceeding a safety threshold, and the alarm information is instantly pushed to a mobile intelligent terminal; and besides, a water valve, a door and window and an exhaust system can be opened in a linked mode for processing, precious time is won for the user, and risks are reduced as far as possible.
Owner:潍坊汇金海物联网技术有限公司

Radio frequency tag capable of measuring temperature and illuminant lamp with same

The invention discloses a radio frequency tag capable of measuring temperature and an illuminant lamp with the same. The radio frequency tag capable of measuring temperature comprises an acoustic surface wave radio frequency tag chip and a tag antenna. The acoustic surface wave radio frequency tag chip comprises a piezoelectric substrate, an interdigital transducer and a reflecting grate. The reflecting grate comprises a temperature measuring reflecting grate body and a coding reflecting grate body. The interdigital transducer and the reflecting grate are located on the piezoelectric substrate. The illuminant lamp can be a runway side boundary lamp or a taxiway edge lamp or a runway center line lamp. By the adoption of the radio frequency tag, reliable reading of the radio frequency tag in an inner environment of the illuminant lamp is guaranteed, a special radio frequency tag is integrated with the inner portion of the illuminant lamp, the technology of the internet of things can be actually applied to spot inspection of the illuminant lamp, and efficiency and management efficiency are improved.
Owner:SHOULDER ELECTRONICS CO LTD

Mine worker management system

The invention relates to a mine worker management system. The mine worker management system comprises monitoring hosts, manager work stations, a network server, a unique card checking device, intrinsic safety type substations and radio frequency identification card readers, wherein the monitoring hosts, the manager work stations and the network server are located on the ground; the unique card checking device is located at a wellhead; the intrinsic safety type substations and the radio frequency identification card readers are located underground and distributed in the walking direction of a roadway, and each intrinsic safety type substation is connected with a plurality of radio frequency identification card readers; the intrinsic safety type substations are supplied with power by mining explosive-proof and intrinsic safety type stabilized voltage supplies; the intrinsic safety type substations are in signal communication connection with the monitoring hosts; the monitoring hosts are in information transmission connection with the manager work stations; and the unique card checking device can read an electronic tag storing information of a worker, and the unique card checking device and a monitoring host 1 can realize data transmission. The system performs non-contact information acquisition processing on a remote moving target in an underground tunnel of a coal mine, so that the worker in different states of moving or standstill can be automatically recognized, and the automatic management of the target is realized.
Owner:XUZHOU JIANGMEI TECH +1

Tire pressure monitoring device with wireless transceiver

The invention discloses a tire pressure monitoring device with a wireless transceiver. The tire pressure monitoring device comprises a tire pressure monitoring sensor and a receiving display which both comprise wireless transceivers, wherein each wireless transceiver comprises a wireless transceiving chip U1 and a modulation carrier wave circuit, wherein the chip U1 is M1CRF112; the modulation carrier wave circuit comprises a crystal oscillator Y1, a resistor R8, a capacitor C3, a capacitor C17 and a capacitor C18; a pin XTLIN of the chip U1 is connected with the resistor R8 and the capacitor C3, and the other end of the capacitor C3 is in ground connection; the other end of the resistor R8 is connected with one end of the capacitor C17 and one end of the crystal oscillator Y1, and the other end of the capacitor C17 is in ground connection; the other end of the crystal oscillator Y1 is connected with the capacitor C18 and a pin XTLOUT of the chip U1. The tire pressure monitoring device with the wireless transceiver is high in signal penetrating power, is good in anti-interference effect, and is high in stability.
Owner:NANJING TOP SUN TECH

Cable trench inspection robot and control system thereof

The invention relates to a cable trench inspection robot and a control system thereof. The robot comprises at least three joint mechanisms. Each joint mechanism is provided with at least two driving motors, a traveling mechanism is arranged at the bottom end of each joint mechanism, and the three joint mechanisms include the first joint mechanism, the second joint mechanism and the third joint mechanism. The first joint mechanism is provided with a cradle head, the second joint mechanism is provided with a temperature detection device, and the third joint mechanism is provided with a gas detection device. The cable trench inspection robot is a three-joint series crawler-type structure robot composed of three joint mechanisms, is small in size, flexible in movement and high in load capacity. The robot is suitable for monitoring the state of a narrow cable trench with a complex ambient environment. According to the control system of the cable trench inspection robot, a first controller and a second controller are adopted to form dual systems so as to control operation of the cable trench inspection robot, and the operation reliability and monitoring efficiency of the robot are improved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

A positioning and navigation system for personnel on and off the well in deep precision mining combined with the Internet of Things

The invention provides a deep accurate mining ground and underground personnel positioning and navigation system combined with the Internet of Things. The system is composed of a navigation equipmentterminal, a location service base station, a ground monitoring command system, and underground environment monitoring equipment; and the navigation equipment terminal is provided with a visual displayscreen, a micro-control unit, a micro inertial navigation module, a tag identification and positioning module, a GPS module, a multi-sensor detection module, an electronic map navigation module, an early warning module, a communication module and a power supply. According to the deep accurate mining ground and underground personnel positioning and navigation system combined with the Internet of Things provided by the invention, the positioning and navigation of personnel and vehicles in the deep well where a GPS signal is difficult to reach is realized, the location distribution of the underground personnel and vehicles is grasped through a ground monitoring system, so that monitoring and command of the personnel and vehicles are realized; the underground environment is sensed through thecommunication module and the multi-sensor environment monitoring module, so that the occurrence of dangers is prevented; when the dangers occur, people can timely escape and rescue through a communication and positioning and navigation module, thus the life and property safety of the underground personnel and mining area personnel can be guaranteed to the maximum degree.
Owner:CHINA UNIV OF MINING & TECH

Underground worker tracking and positioning system device and working method thereof

The invention discloses an underground worker tracking and positioning system device which comprises a software system and a hardware system device. The software system is burned in the hardware system device and comprises application software and embedded software which are connected. The hardware system device comprises an underground substation device, a transmitting antenna, a receiving antenna, a data interface, a fingerprint instrument, an attendance machine and an identification card. The underground substation device, the transmitting antenna, the receiving antenna, the data interface, the fingerprint instrument, the attendance machine and the identification card are connected. Due to the fact that the software system and the hardware system device of a monitoring system device are improved, the tracking and positioning device has the advantages of being long in transmission distance, free of blind zones of identification, high in signal penetrating power, free of electromagnetic pollution to human body and high in capacity for being adaptive to environment, and remote monitoring of network connection and a fault self diagnosis are convenient.
Owner:李拓彬

Oral administration monitoring gateway for hospital patient

InactiveCN111030923AReduce congestionPrevent the problem of easy lossNetwork connectionsEngineeringTime-division multiplexing
The invention relates to a hospital patient oral administration monitoring gateway, which belongs to the field of Internet of Things development. The gateway software part comprises an embedded NS server and an FTP client. The embedded NS server is composed of a receiving end, a database and a client, and the receiving end is responsible for receiving data of a terminal node, decrypting the data,taking out application layer data and storing the application layer data into the database. The database is used for storing uplink and downlink important information. The client side is used for communicating with a background server. The FTP client is used for carrying out night backup on the data stored in the gateway, regularly storing the data of different gateways into a file by adopting a time division multiplexing technology, uploading the file to the background server, and then clearing the data in the gateway database. According to the invention, the uploading of data can be effectively reduced, so that the utilization rate of bandwidth and the security and reliability of data are improved, and the problem that data are easy to lose in the case of gateway power failure is solved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Convenient-to-charge card positioner based on NB-IoT network

The invention discloses a convenient-to-charge card positioner based on an NB-IoT network. The card positioner comprises a card positioner body, indicating lamps, a light sensation sensor, an NB-IoT communication module, a temperature sensor and a magnetic attraction charging port; an upper shell is arranged at the upper part of the card positioner body; a lower shell is arranged at the lower partof the card positioner body; the indicating lamps are arranged on the upper surface of the upper shell; the light sensation sensor is installed in the middle of the upper surface of the upper shell;installation sleeves are installed around the light sensation sensor; and connecting holes are formed in the middles of the installation sleeves. According to the convenient-to-charge card positionerbased on the NB-IoT network, based on the characteristics of ultra-low power consumption and high signal penetrating power of the NB-IoT communication technology, the service life of the positioner can be greatly prolonged, frequent charging is avoided, the positioner has ultra-high signal penetrating power, the positioner can be placed in a relatively hidden and closed environment, and the application range of the positioner is remarkably expanded.
Owner:上海零零智能科技有限公司

Wireless temperature acquisition device based on LoRa technology

A wireless temperature acquisition device based on a LoRa technology is used for real-time positioning and temperature and humidity monitoring of cold-chain logistics transportation and mainly comprises a GPS positioning module, an LBS positioning module, a temperature and humidity sensor module, a main control unit, a LoRa communication module, a lithium battery power supply module, a voltage adjusting module, a low-power-consumption management module, a dismounting alarm unit, a storage unit and the like. The LoRa technology has the advantages of being high in signal penetrability, long in transmission distance, low in power consumption, multiple in node, low in cost and flexible in network arrangement mode, a GPS and LBS dual positioning mode is adopted, a local storage unit is arranged, and the problems that in the prior art, independent monitoring of multiple temperature zones cannot be achieved, the signal penetrability is weak, the transmission distance is short, and the problems of no blind spot data supplementary transmission, incapability of storing data when a network or a server fails, non-adjustable data reporting frequency, single positioning mode, incapability of positioning when no GPS signal exists or the GPS signal is weak, and low transmitting intensity and receiving sensitivity are solved.
Owner:SHENZHEN ZHONGCHUANG XINGTONG TECH CO LTD

Target following method, apparatus, device and system

The present application relates to a target following method, apparatus, device and system. The method includes: acquiring first orientation data sent by a UWB base station and a following mode sent by a UWB beacon; setting the UWB base station on a target following device; setting the UWB beacon on a target following object; processing the first orientation data based on the following mode Obtain the second azimuth data; the second azimuth data includes the current distance between the target position and the UWB base station, and the second azimuth angle of the straight line where the target position and the UWB base station are located relative to the current direction of movement of the target following equipment; the second azimuth data Compare with the preset orientation data, get the comparison result, and control the action of the target following equipment according to the comparison result. The signal penetration between the UWB base station and the UWB beacon adopted in this application is strong, which improves the reliability of target following, and the application provides a rich following mode for the target following object, which is convenient to flexibly change the following mode according to the running road, Practicality is greatly improved.
Owner:PROMINENT IND (GUANGZHOU) CO LTD

Environment monitoring and alarming method and system supporting multiple communication protocols

The invention belongs to the field of environment monitoring and alarming, relates to an environment monitoring and alarming electronic system, and particularly relates to an environment monitoring and alarming method and system supporting multiple communication protocols. According to the invention, a system capable of sending environmental monitoring data through various communication protocolsis realized, and especially under the condition that a conventional communication environment is missing or damaged, real-time data can be acquired through a mobile terminal platform supporting NFC, Bluetooth or WIFI communication, such as a smart phone and a tablet personal computer, sensing information can be collected and alarm information can be sent through narrow-band LoRaWAN communication equipment which is deployed on an unmanned aerial vehicle platform remotely or dynamically. According to the system, the minimum UART serial digital communication interfaces, I2C digital communicationinterfaces and SPI digital communication interfaces are adopted, various atmospheric environment test sensors and digital communication modules are integrated to the maximum extent, various atmospheric parameters are effectively monitored, and the obtained real-time data is sent in various communication modes.
Owner:上海碁实智能科技有限公司
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