50results about How to "Strong diffraction ability" patented technology

The invention discloses an IEEE (Institute of Electrical and Electronic Engineers) 802.15.4g standard-based wireless monitoring communication protocol, and belongs to the technical field of embedded wireless monitoring. IEEE802.15.4g is a standard of a physical layer named SUN, which is established by Institute of Electrical and Electronic Engineers (IEEE) in recent two years, the physical layer is supplemented on the basis of an IEEE802.15.4 standard, and the IEEE802.15.4g standard is particularly suitable for battery powered infrastructure sensor networks which have ultralow power consumption, remote transmission and excellent anti-noise performance. Although IEEE802 is still standardized at present, a draft scale has been determined basically, so the set of standard is necessarily tracked and studied timely, and based on the underlying standard, a set of ultralow power consumption wireless upper-layer communication protocol applied to the field of smart grid monitoring is designed and developed. The protocol aims at a star network topological structure, working method steps for a network coordinator node and a sensor node are respectively designed, and the protocol has the characteristics of low velocity, ultralow power consumption, low complexity and the like.

The invention discloses a direct-reading wireless gas meter based on the illumination-vibration complementary environment energy collecting technology. The direct-reading wireless gas meter comprises a membrane type basic gas meter, three direct-reading infrared encoders, three 7 to 1 switch modules, an infrared encoding collecting and data processing module, an illumination environment energy collecting and communication module, a vibration environment energy collecting module and the like. The three direct-reading infrared encoders output analog quantity encoding values, and gas digital quantity data is uploaded to the illumination environment energy collecting and communication module through the three 7 to 1 switch modules and the infrared encoding collecting and data processing module. The direct-reading wireless gas meter has the advantages the electric energy of the gas meter is taken from the environments, and the illumination-vibration complementary environment energy collecting scheme designed according to power demands is good in usability; a single-ring semicircular encoding process is simple, and convenient in error correction; environment energy collecting efficiency is increased by a micro power consumption management circuit; an EnOcean standard protocol low in wireless communication frequency is good in diffraction ability; environment energy utilization is optimized by a polarized relay and the interrupt awakening technology.

The invention discloses an intelligent mine pressure monitoring substation and a calibration method thereof. The intelligent mine pressure monitoring substation is composed of a singlechip microcomputer, a communication module RSM3485, an AD (Analog to Digital) conversion module, a liquid crystal module, an operation amplifier, a resistance bridge type stress sensor, a wireless data transmission module and an intelligent data collector, wherein the wireless data transmission module is a highly integrated half-duplex micropower module with ultralow power consumption and is embedded into a circuit between the singlechip microcomputer and the communication module RSM3485. According to the invention, an automatic calibration function is fulfilled through a software-simulation potentionmeter, and the precision is high up to more than grade 0.5.When the intelligent mine pressure monitoring substation is used, a miner light is prevented from being used for awakening, and the collection can be completed automatically as long as a worker walks through a side place about 10-15 meters away by taking a collector.

The invention relates to a low-delay remote engineering machinery operation control system. The low-delay remote engineering machinery operation control system comprises a control device, a remote controller I, a data transfer radio I, a data transfer radio II, a remote controller II and a vehicle-mounted controller; the control device, the remote controller I, the data transfer radio I, the datatransfer radio II, the remote controller II and the vehicle-mounted controller are installed in a remote control cab; the control device is used for sending a control signal; the remote controller I is used for performing coding and protocol conversion after receiving the control signal; the data transfer radio I and the data transfer radio II are used for transmitting control data and state datacoded by the remote controller I; the vehicle-mounted controller is used for controlling an execution mechanism to execute an action; and the remote controller II is used for receiving the signal of the data transfer radio II, decoding the signal, converting the signal into a field bus signal, and sending the field bus signal to the vehicle-mounted controller. The control device comprises a handle, a switch, an accelerator, a brake and a steering wheel. By means of the low-delay remote engineering machinery operation control system and method disclosed by the invention, in dangerous and harshworking environments of dealing with dangerous goods, chemicals, radiation substances, geological disaster relief and the like, hazards on health and security of drivers can be reduced through the remote control of engineering machinery.

The invention relates to the technical field of fingerprint identification, and provides a fingerprint identification module. The fingerprint identification module comprises a backboard, a light source, a photoelectric receptor and a fingerprint identification switch; the light source is arranged on the backboard, the light source can emit infrared light and visible light, and a fingerprint can reflect the infrared light to form infrared reflected light; the photoelectric receptor is arranged on the backboard and used for detecting the luminous intensity distribution of the infrared reflectedlight and identifying a wave peak and wave trough of the fingerprint; and the fingerprint identification switch is arranged on the backboard and used for controlling the light source and the switchingon or switching off of the photoelectric receptor. The fingerprint identification is clearer by using the fingerprint identification module; display and fingerprint identification do not affect eachother and cannot affect the display effect.

The invention provides a water meter remote image acquisition system and a method. The system comprises at least one image acquirer, at least one repeater and a remote server, wherein each image acquirer is connected with one repeater; each repeater is connected with one or more image acquirer; the remote server is connected with at least one repeater; each image acquirer is used for acquiring water meter image data and sending the data to each repeater through a 433M communication manner; each repeater is used for sending the water meter image data sent by each image acquirer to the remote server through an LTE network, and sending a control command sent by the remote server to each image acquirer through the 433M communication manner. The water meter remote image acquisition system and the method provided by the invention have the advantages of strong diffraction ability, far transmission distance, networking stability, low frequency, low power consumption, real-time communication ofthe big image data, and the like, and meet the requirements on remote high-frequent meter reading, real-time health status monitoring and the like of water meters of old communities.

The invention discloses a lightening protection device monitoring system capable of multi-mode communication. The system includes: a detection module which is used for detecting a lightening stroke state and transmitting the lightening stroke state information to an AVR master control module; the AVR master control module which is used for controlling a display module and a communication module; an alarm module which is used for real-time detecting an operation state of the system and capable of sounding an alarm upon malfunction; the display module which is used for displaying the number of lightening strokes when the lightening stroke state is detected; the communication module which is used for transmitting lightening stroke information to an upper computer by adopting a plurality of communication methods. According to the invention, through an electromagnetic induction coil detecting a lightening stroke, a one-chip microcomputer controls the display of the number of the lightening strokes, communication to the upper computer, and acousto-optic alarm sounding. According to the invention, the system overcomes the problem of lack of a communication function or single communication method of current lightening protection detection systems and the problem of inability of meeting requirements for multiple distance information acquisition. The system is characterized by wide application range, excellent performances, and can realize short, long, wired and wireless communication.

The invention discloses an intelligent security wireless communication device and method. The device comprises that a collection module is used for collecting request signals broadcasted and sent by the terminal device of a to-be-connected communication device; the request signals at least comprise the address information of the terminal device; a first connection module is connected with the collection module and is used for sending replay signals to the terminal device according to the request signals; the replay signals at least comprise the address information of the communication device and connection building confirmation information; the first connection module identifies the communication rate of the request signals and sends the replay signals with the communication rate the same to that of the request signals, thus satisfying the terminal devices of different types; and after a communication module is connected with the terminal device, the communication module interacts data with the terminal device. According to the device and the method of the invention, the power consumption and the cost of the terminal device can be reduced; the same frequency interference with WIFI signals are avoided; and the method and the device has high penetration and diffraction capacity and are applicable to indoor complex application scenes.

The invention discloses a self-service passive life-calling method and system. The method includes the following steps: S1, receiving mid-frequency search and rescue signals with adjustable intensity and converting them into electric energy; S2, triggering the generation of the calling-for-help signals manually or automatically The module generates a medium and high frequency distress signal; S3, seamlessly captures the medium and high frequency distress signal and determines the position and distance of the person in need of rescue. The present invention is based on medium and high-frequency signals. Compared with the existing search and rescue methods, the search and rescue measurement range can be expanded, so that the search and rescue will not be affected by the post-disaster environment, and the measurement accuracy and search and rescue efficiency are greatly improved; in addition, the call for help module in the present invention does not need Additional power supply and strong explosion-proof capability; in addition, in the present invention, according to different vital signs signals, searchers and rescuers can rationally allocate personnel to search and rescue survivors with poor vital signs so as not to delay the best treatment time, and finally achieve the goal of saving time when every second counts. Search and rescue the scene to save more lives.

The invention provides a multi-mode wireless intelligent distribution and coverage system, comprising a main machine control unit, sub-machine distribution units and sub-machine coverage units. The main machine control unit communicates with the sub-machine distribution units and the sub-machine coverage units respectively through a wireless transmission manner, realizes the transmission of radio frequency signals, and controls the sub-machine distribution units and the sub-machine coverage unit. The sub-machine distribution units communicate with the main machine control unit through a wireless accessing method and realize the transmission of the radio frequency signals. The sub-machine coverage units communicate with the sub-machine distribution unit through optical fibers, realize the transmission of the radio frequency signals, and cover the coverage area through a sub-machine coverage antenna as well as receive the uplink signals from the terminals in the coverage area. Each sub-machine distribution unit can be accessed to eight sub-machine coverage units in a parallel-connection manner; and each sub-machine coverage unit supports four-level cascade-connection. With the system of the invention, it is possible to complete the introduction of 2G, 3G and 4G signals at the same time. The system cannot only be mounted and managed conveniently, but also does not occupy the installation space.

The invention discloses a bionic robot fish control system. The bionic robot fish control system comprises an upper layer, a middle layer and a bottom layer, wherein a PC upper computer serves as the upper layer, an embedded industrial control panel serves as the middle layer and a microcontroller panel serves as the bottom layer. The bionic robot fish control system has the advantages that the bionic robot fish control system of a hierarchical system structure is capable of reducing hierarchical work complexity and calculated amount and convenient for hierarchical function extension; the movement system joint number can be increased and decreased according to actual environments, so that movement performance of a robot fish is improved or energy consumption thereof is reduced; two independent communication connections including WiFi connection and 170 Mhz low-bandwidth connection are established, the WiFi connection is used for visual transmission of the embedded industrial control panel, and the 170 Mhz low-bandwidth connection used for the bottom-layer microcontroller panel can reach a communication distance as long as 8 KM, attains high diffraction capability and can guarantee that a robot fish body is positioned within a communicable range in case of WiFi connection interruption.

The invention discloses an intelligent roof displacement sensor and a meter calibration method thereof. The intelligent roof displacement sensor comprises a singlechip, a communication module RSM3485, an analog-to-digital (AD) conversion module, a liquid crystal display module, two resistance transformation type abscission layer sensors, a wireless data transmission module and an intelligent data collector, wherein a pin RXD of the wireless data transmission module and a pin RXD of the communication module RSM3485 are simultaneously connected to a pin TXD of the singlechip; a pin TXD of the communication module RSM3485 is connected to a pin RXD of the singlechip through a diode; and a pin TXD of wireless data transmission module is connected with a contact of the pin RXD of the singlechip through a resistor and the diode. The intelligent roof displacement sensor has the advantages that an automatic meter calibration function is realized through a software analog potentiometer and accuracy of grade 0.5 is achieved; and the intelligent roof displacement sensor does not need to be irradiated and waken up by using a cap lamp, and automatic collection can be realized only when a worker carries the collector to pass by a meter approximately at an distance of 10 to 50m from the meter.

The invention discloses intelligent glasses with a sheltering function as well as a control system. A sensor judges whether people are out of the limited distance when washing televisions, computers,mobile phones and tablet personal computers; when the sensor senses that people are in the limited distance, a sheltering sheet shelters glass lenses on a glasses frame, voice and vibration prompt isconducted on the glass fame, and the effect of protecting eyesight is achieved. In addition, a glasses box which is in wireless communication with the glasses frame is designed, so that the glasses box and the glasses frame can perform voice prompt synchronously in the same space, the intelligent glasses are particularly suitable for young users, and parents can master the eye using habit of teenagers in real time through the prompt of the glasses box and can perform human reminding or intervention.

The invention belongs to the field of wireless video monitoring, in particular to an anti-interference wireless video transmission method based on 2.4 G wireless technology, which relates to a plurality of wireless video monitoring devices and a wireless video recording host (hereinafter referred to as the host), wherein the wireless video monitoring device and the host are provided with frequencyconversion devices for converting a 500M-1G frequency band signal and a 2.4G frequency band signal. The method comprises thes tepsof Step 1: transmitting the collected video data to the wifi device by the wireless video monitoring device, and converting the 2.4 G frequency band signal to the 500M-1G frequency band wireless signal through the frequency conversion device for transmitting into space; Step 2: converting the 500M-1G frequency band wireless signal to 2.4G frequency band signal by the frequency conversion device at the host and then transmitting a wifi device; Step 3: transmitting the received video data to the host system for processing by the wifi device. The invention provides an anti-interference wireless video transmission method and system based on 2.4 G wireless technology, which has the advantages of high transmission speed, strong anti-interference ability and good diffraction ability.

The invention discloses a wireless temperature measurement control system for fishery breeding and a use method. The system comprises a base station terminal (1), wherein the base station terminal (1)is connected with wireless sensing nodes (2) at different temperature measuring sites; the base station terminal (1) comprises a base station radio frequency chip (1.1); the base station radio frequency chip (1.1) is connected with a display unit (1.2), an alarm unit (1.3) and a base station interface unit (1.4) respectively; the wireless sensing nodes (2) comprise node radio frequency chips (2.1); the node radio frequency chips (2.1) are connected with node interface units (2.2); the node interface units (2.2) are connected with temperature sensors (2.3); the base station radio frequency chip (1.1) is connected with the node radio frequency chips (2.1) through wireless radio frequency signals. The wireless temperature measurement control system needs no tedious wiring and has the characteristics of being short in measurement cycle, low in artificial cost, high in measurement efficiency, free of potential safety hazards, convenient to manage and easy to maintain.

The invention discloses a railway monitoring data transceiver and a railway monitoring data transceiving method, and relates to a railway infrastructure health state monitoring technology. The railwaymonitoring data transceiver comprises a control unit and a local area network wireless communication unit, a wide area network wireless communication unit, a data storage unit, a timed transmitting judging unit and an interaction sending judging unit which are connected with the control unit. By adopting the driving and driven combined wireless data collecting mode, it is ensured that fire alarminformation is timely found.