191results about How to "Enable two-way communication" patented technology

This invention relates to a communication system for use with a vehicle. The system comprises a first communication unit (1), being positioned within a vehicle (2), and a second portable communication unit (7). The first communication unit (1) comprises a first memory circuit (4) being connected with a first transceiver (3), and said second communication unit (7) comprises a second memory circuit (10) being connected with a second transceiver (9). The transceivers (3,9) are arranged to establish a short-distance wireless communication link (8) between said first and second communication units when the communication units are within a communication range from each other, thereby enabling two-way communication between said communication units. An information item, stored in any one of said memory circuits is automatically transmitted to the other one of said memory circuits (4,10), over said wireless communication link (8) when the communication units (1,7) are within said communication range from each other.

Further, the invention relates to a fob unit, comprising a second communication unit, for use in a communication system as described above.

The invention provides an intelligent control method and system for interactive home appliances on the basis of time-of-use electricity price response. The method is characterized by comprising the steps that the home appliances are automatically classified according to types of home appliance loads; use habits of the home appliances of users are determined according to historical home appliance running status data collected in 30 days; according to time-of-use electricity price policy information of a receiving power grid, basic load demand ranges corresponding to all time periods are predicted and determined for the users; according to obtained user home appliance use habit characteristics and load settings, controllable degree indexes of the home appliances are calculated, and running status models of the home appliances are determined; according to the controllable degree indexes of the home appliances, dynamic control priorities and a control algorithm of the home appliances are determined, and intelligent control over the home appliances is achieved. The method and system have the advantages that interactivity is good, the receiving degree of the users is high, the users can be guided to reasonably avoid the peak hours for electricity utilization, and electricity utilization cost is remarkably reduced.

The invention relates to a voice signal quantum encryption communication system based on a random number, which comprises terminal equipment, a quantum communication access point, a quantum communication gateway and a quantum communication access point, wherein the terminal equipment consists of a terminal sending subsystem and a terminal receiving subsystem; the terminal sending subsystem comprises a quantum key agreement and management module, a voice signal encoding module, a random number generation module, a voice encryption module and a digital modulation module; and the terminal receiving subsystem comprises a voice signal decoding module, a quantum key agreement and management module, a voice decryption module and a digital demodulation module. One piece of terminal equipment simultaneously comprises the terminal sending subsystem and the terminal receiving subsystem. According to the invention, the terminal sending subsystem is applied to send a voice signal with good encryption performance and high anti-interference performance and meanwhile, the terminal receiving subsystem is utilized to receive and reduce the voice signal, so that safety and integrity in the communication process are ensured.

The invention belongs to urban railway system vocation education equipment which can realize multi-type failure simulation of a metro passenger car door system and bidirectional communication linkage based on analog simulation software. The analog simulation software can set a failure to an experiment table and also can collect the state of the experiment table to realize structural dismounting, a work principle and an overhauling flow in a three-dimensional manner. The method and the device disclosed by the invention can be used for realizing practical training, checking and scientific researches of the metro passenger car door system. The whole device comprises six parts including a passenger car door assembly experiment table, an integrated array type control and collecting module, an embedded type handheld failure simulation terminal, a handheld failure setting device, a connecting wire, a data conversion connector, a main control computer, and analog simulation and control software. The type of simulated failures comprises an EDCU (Electronic Door Control Unit) failure, short circuit, open circuit, earth connection, deadlock, an intermittent failure, device damages, signal interference and the like. The method and the device can be used for researching a car door clamping force, a bypath door control line and the like.

The invention discloses a wireless communication system based on wireless sensors. The wireless communication system comprises a wireless gateway and at least one wireless sensor. A wireless channel connection is established between the wireless sensors and the wireless gateway. When being required to sense information, the wireless gateway broadcasts multiple wakeup packets including a unique code. The wireless sensor performs carrier sense on a wireless channel at a first time window of a WOR wakeup period, receives the wakeup packets if finding a carrier, and then enters a work period to acquire sensed data at a first time segment in the work period and transmit the sensed data and an identification code corresponding to the wireless sensor to the wireless gateway at a second time window. By means of the above way, the wireless communication system may achieve bidirectional communication of the wireless sensor, and is low in power consumption and resistant to collision.

The invention relates to an intelligent distributed feeder automation logic test system. According to the intelligent distributed feeder automation logic test system, the normal working or the fault state of a tested loop is simulated, a voltage signal and/or a current signal is generated by a fault simulator, a corresponding switching value signal is generated by a switch simulator and sent to a power distribution terminal in the tested loop through a communication interface as a test signal, the power distribution terminal feeds the switching state information formed according to the test signal back to the test system through the communication interface, and an ordered, accurate and efficient intelligent distributed feeder automation logic test for the power distribution terminal is realized by judging whether the switching state information meets processing logic during the normal working or the fault state of the tested loop.

The invention provides an auxiliary train protection system and an auxiliary train protection method based on Beidou navigation. The auxiliary train protection system comprises a GPS (Global Position System) satellite, a Beidou satellite, track positioning equipment arranged on a track, a Beidou-GPS double-module receiver, a vehicular computer, a train control center, a GSM-R (Global System for Mobile Communication-Railways) wireless network for realizing bidirectional communication with a train when the track positioning equipment is normal, wherein the Beidou-GPS double-module receiver and the vehicular computer are arranged on the train; the system can supply more accurate positioning information with the coordination of a track positioning system when the train is in normal operation; the system supplies Beidou-GPS double-module positioning information for the train in the condition that the track positioning equipment loses efficiency, and can communicate with the train by using the Beidou bidirectional communication function without dependence on any ground communication equipment. With the adoption of the auxiliary train protection system, the train is automatically decelerated and even braked in dangerous conditions, so that the normal operation of the train system can be ensured and the auxiliary train protection system is used as a final protection barrier of the train; the security of the train is improved on the basis that the reliability of train positioning information can be ensured.

The invention provides a bidirectional four-beam liquid crystal optical phased-array antenna and realizes a liquid crystal phased multi-user space bidirectional laser communication method based on the antenna. According to the antenna, large-angle deflection control is performed by adopting the combination of a transmission type liquid crystal polarization grating and a transmission type liquid crystal optical phased array, so as to realize beam scanning, and high-precision beam deflection control is performed through liquid crystal optical wedge control beams, so as to realize high-precision beam tracking. According to the bidirectional four-beam liquid crystal optical phased-array antenna and the liquid crystal phased multi-user space bidirectional laser communication method, linearly polarized beams of which two polarization directions are mutually perpendicular are independently controlled by adopting two parallel liquid crystal optical phased-array antennae, and receiving and sending separation of the same user optical signal is realized by adopting a circular polarization right-and-left spin multiplexing and liquid crystal optical phase combined method, so that multiuser bidirectional communication can be realized, and single-user polarization multiplexing communication also can be realized.

The invention relates to a wireless monitoring management system and especially relates to a multifunctional highway monitoring management system based on a wireless communication technology. A purpose of the invention is to provide a multifunctional wireless highway monitoring management system. The system comprises: an overload monitoring device, a vehicle device, a relay station, a zigbee wireless data transmission network and an information management center. Based on a zigbee technology, a GIS technology, a frequency modulation radio technology, an interphone technology and a sensor technology, positioning, navigation, whole course speed monitoring, speed information voice prompting, safe vehicle distance voice prompting and road section notice voice prompting can be performed to a running vehicle on a highway. And road condition information can be published to the vehicle on the highway. Under a special situation, scheduling information is published so as to schedule the vehicle and communicate directly with a driver. Bidirectional communication of the driver and a management department can be realized. The system can be used in a highway management system. Effective supervision can be realized and a highway accident rate can be reduced.

A system and method for downhole data communication using an infrasound wave generator and receivers. The infrasound waves have a low frequency and a wavelength that is much larger than the transverse dimensions of the well. When the infrasound waves are directed down the well, the well will act as a wave guide for low frequency excitations. The receivers are operatively connected to inflow valves and other downhole equipment, and receive the infrasound waves. If the waves are of a predetermined frequency, the receivers command the valves to open or close, or otherwise control downhole equipment. The infrasound waves can also be used to probe well geometry and to identify fluid properties within the well.

The invention relates to a wireless sonar system based on underwater acoustic communication. The system includes an underwater submersible buoy, a water-surface floating-body module and a display andcontrol module (9). The underwater submersible buoy is arranged at the bottom of water. The water-surface floating-body module is arranged on a surface of the water. The display and control module (9)is arranged on a ground shore station. The display and control module (9) sends an instruction to the underwater submersible buoy through the water-surface floating-body module, working status of underwater sonar (3) installed at the underwater submersible buoy is arbitrarily changed, underwater-sonar data are periodically sent to the display and control module (9), and display is carried out.

The invention discloses a Bluetooth BLE communication device and a communication control method adopting the same. The Bluetooth BLE communication device comprises a CPU module, at least a BLE communication module, a power supply detection circuit, an RS485 interface circuit, and an LAN interface. The BLE communication module is used to transmit a BLE broadcast packet transmitted by a Bluetooth BLE slave device in the monitoring coverage range of the Bluetooth BLE communication device to the CPU module, and the CPU module is used to filter the data the BLE broadcast packet, which cannot satisfy a requirement of a set format, and is used for screening, classifying, and gathering the data satisfying the requirement of the set format, and thereafter is used to transmit the above mentioned qualified data to a host computer or an Internet of Things cloud platform by the RS485 interface circuit or the LAN interface. The Bluetooth BLE slave device is used to upload the data to the Internet of Things cloud platform without using a smart phone, and therefore costs are reduced, and connection with other BLE slave devices is established, bidirectional control is realized, efficiency is high, and use is flexible.

The invention provides a synchronous communication method and a synchronous communication system among virtual reality devices. The method includes broadcasting UDP (user datagram protocol) messages by a primary virtual device in order that at least one secondary virtual device monitors the UDP messages, wherein the UDP messages include IP address of the primary virtual device; receiving TCP (transmission control protocol) request messages, which are sent by the secondary virtual devices after the UDP messages are monitored, wherein the TCP request messages include IP addresses of the secondary virtual devices; analyzing at least one received TCP request message, and creating TCP connection between the primary virtual device and the secondary virtual devices according to analysis results.Through combination of UDP broadcast performance and TCP directivity, bidirectional communication between the primary virtual device and the secondary virtual devices can be realized, and real-time performance and stability are excellent.

The invention discloses a method and a device for sending and receiving command information. The method for sending the command information comprises the steps as follows: obtaining a first audio signal which carries first command information and/or second command information and is output by an audio interface of a mobile terminal, wherein the first command information is used for instructing a receiving device to execute an operation corresponding to the first command information, and the second command information is used for instructing sending of the first command information to the receiving device; according to the obtained first audio signal, generating a first transmission signal carrying the first command information and sending the first transmission signal to the receiving device, wherein the first transmission signal is an optical signal or an acoustic signal. According to the method and the device, the technical problem that existing optical communication methods are hard to be compatible with mobile terminals with different models is solved.

The invention discloses a remote medical service system, which comprises a portable medical treatment apparatus, a handheld diagnosis terminal, a remote medical server and a wireless access point. The portable medical treatment apparatus is used for collecting patient information, the handheld diagnosis terminal is used for transmitting diagnosis information, and the remote medical server is used for storing patient information and diagnosis information. In the technical scheme, the portable medical treatment apparatus is connected with the remote medical server through a network; the handheld diagnosis terminal is connected with the remote medical server through a network after communication with the wireless access point; the patient information collected by the portable medical treatment apparatus is stored by the remote medical server and is then transmitted to the handheld diagnosis terminal; and the handheld diagnosis terminal receives the patient information and transmits the diagnosis information, and the diagnosis information is stored by the remote medical server and is then transmitted to the portable medical treatment apparatus. The system of the invention can greatly improve the diagnosis convenience for the doctor, and enhance the diagnosis efficient for the doctor. Moreover, the visit of patients and the diagnosis of doctors can be of mobile type, the two-way communication between doctors and patients can be realized, and clinical diagnosis can be performed in any place and at any time without limitation of the hospital.

An Eco-Driving diagnostic system capable of quantitatively comprehending fuel consumption with respect to each event and environmental-load emissions owing to the fuel consumption, an Eco-Driving diagnostic method and a business system using the same. An in-vehicle device set to a vehicle acquires from a vehicle sensor information necessary to comprehend fuel consumption and driving statuses of the vehicle. The information is transmitted to a center via a radio communication network. On the basis of the acquired information, there are calculated fuel consumption owing to the vehicle's driving and environmental-load emissions owing to the fuel consumption. Further, on the basis of the calculated information, contents including results of the diagnosis and advices are created to promote Eco-Driving. The contents are provided to terminals such as PCs, mobile terminals such as mobile phones and the like, which has already been popularized.

The invention discloses a user identification card which comprises a user identification card body and a user identification Bluetooth module. The user identification card Bluetooth module is electrically connected with the user identification card body. The user identification card Bluetooth module is used for building Bluetooth socket connection with an external Bluetooth device and receiving instructions of the external Bluetooth device, and therefore the external Bluetooth device accesses the user identification card through the user identification card Bluetooth module. The invention further discloses the Bluetooth device and a method for accessing the user identification card. In this way, the user identification card, the Bluetooth device and the method for accessing the user identification card can achieve both-way communication between application software of an intelligent terminal and the user identification card conveniently.

The invention discloses a virtual machine communication method based on hardware simulation. The method comprises respectively arranging a host agent and a virtual machine agent in a host and a virtual machine; the host and the virtual machine respectively communicating with the host agent and the virtual machine agent through message instructions; and the host agent communicating with the virtual machine agent through a virtualization front end device and a virtualization rear end device. The invention also discloses a virtual machine communication apparatus based on hardware simulation.

Provided are a smart home communication system and method equipped with Web Service functions. The smart home communication system comprises a hardware communication interface, a data processing center, an autonomous register module, a Web Service interface, and a wireless communication unit. The hardware communication interface is connected with conventional equipment, and transmits acquired equipment information to the data processing center to process by means of type conversion. The data processing center analyzes and processes data and has a function of automatically adjusting an equipment state, and achieves functions of configuring an equipment parameter, transmitting data to a network server, and performing local storage in different states. The autonomous register module autonomously initiates and completes a function of registering equipment in the network server. The equipment parameter can be configured by a user or the data processing center. The Web Service interface provides a user with an interface for directly interacting with the equipment, and may perform parameter configuration and equipment information checking. The wireless communication unit performs data interaction with the network server, sends the equipment information and the register information. The smart home communication system provides a unified interface for different pieces of equipment and achieves a purpose of intellectualizing conventional equipment.