106 results about "Relay" patented technology

The invention provides a control method and system of a compressor electric heating band in an air conditioner, wherein the control method comprises the following steps of: detecting the air exhaust temperature of a compressor or the outdoor environment temperature of the air conditioner when the air conditioner is at the standby condition, and comparing the detection temperature value and the setting value, and controlling the starting and closing of the compressor electric heating band under the standby condition according to the compared result. The control system comprises a first sensor, a second sensor, a first control module, a comparison module and a relay, wherein the first sensor detects the outdoor environment temperature; the second sensor detects the compressor air exhaust temperature; the first control module enables the first or the second sensor to operate in the standby state of the compressor, and is respectively connected with the first sensor and the second sensor electrically; the comparison module is used for comparing the detection value and the setting of the first or the second sensor, and is electrically connected with signal output ends of the first sensor and the second sensor; and the relay controls the starting and closing of the electric heating band, an input end of the relay is electrically connected with a signal output end of the comparison module, and an output end of the relay is electrically connected with the electric heating band. According to the invention, the standby power consumption of the air conditioner can be lowered.

The present invention is an image display device in which a two-dimensional image displayed on an image display element is observed by an observer as a magnified virtual image through a virtual image optical system. The second optical plane (15c) on the side of the optical pupil (19) and the reflection and transmission of the optical axis having an angle greater than or equal to 30 degrees and less than 90 degrees with the normal line of the first optical plane or the second optical plane surface (16), which reflects or transmits the image light incident from the incident optical surface (15a), and the incident optical surface makes the relay optical system (12) shown in the image display element (11) ) transited image light incident; reflective optical element (18), reflecting so that the image light reflected on the reflective transmission surface and emitted from the first optical plane is directed to the reflective transmission surface and becomes parallel light; and the phase difference optical element (17), arranged in the optical path between the first optical plane and the reflective optical element, to convert the polarization state of the image light.

The invention provides a method aiming at the overall consideration and complexity of an uplink in a synergetic OFDM (orthogonal frequency division multiplexing) system for the resource allocation in a synergetic OFDM system. The method is characterized in that relays with the number thereof being a positive integer are arranged between a subscriber and a base station and each relay is provided with a plurality of subcarriers with the number being identical with that of the relays. The method comprises the following steps: firstly, the base station selects a relay according to the minimum equivalent signal-to-noise ratios of the subcarriers in each relay, that is, the base station selects the relay with the maximal equivalent signal-to-noise ratio of the subcarriers from the relays with the minimal equivalent signal-to-noise ratio of the subcarriers as the relay node for the subsequent synergetic transmission; then, the selected relay sequences the subcarriers between the subscriber and the selected relay and between the subscriber and the base station sequentially pair the subcarriers, namely, the subcarriers of the relay with high signal-to-noise ratio are used for transmitting the data supposed to be transmitted by the subcarriers of the subscriber with high signal-to-noise ratio; and finally, the base station carries out the water-filling power allocation on each intra-subcarrier according to the equivalent channel gain of each subcarrier pair, and starts the synergetic transmission.

A session identification unit (11) determines a session to which an incoming packet belongs, while a session relay unit (12-1-12-N) relays between a session with a transmission terminal and a session with a reception terminal. A packet scheduler (13) instructs and controls the delivery of packets from each session relay unit (12-1-12-N), and a delivery control unit (14) delivers packets from each session relay unit (12-1-12-N) based on the instruction. In the session relay unit (12-1), a transmission session processing unit (121-1) processes a session for transmitting data to the reception terminal, and a transmission buffer (122-1) stores received data until the end of a transmission. A reception session processing unit (123-1) processes a session for receiving data from the transmission terminal.

A control apparatus of an automatic machine is provided, while the control apparatus supplies electric power of a power supply in high reliability with respect to a driving apparatus of the automatic machine, and further, has no problem as to ensuring of safety.

In a control apparatus of an automatic machine having a breaker (22) connected to a power supply (21), and a driving apparatus (32) for supplying electric power of the power supply (21) to a driving unit (35) of the automatic machine via a relay apparatus (31) connected to the breaker (21), which controls the driving apparatus (32), the control apparatus is comprised of: a current control rectifying element (33) connected to the relay apparatus (31); and a current controlling device (29) for feed-controlling the current control rectifying element (33) after a contact of the relay apparatus (31) has been closed when supplying of the electric power to the driving unit (35) is turned ON.

The invention discloses an automobile hand brake fatigue test rack. The test rack is provided with a traction cable (18), a traction pulley (17), a traction poise (19), a hand brake operating cylinder (4) and a hand brake button cylinder (5), wherein a time relay and a travel switch are arranged in a control circuit of the automobile hand brake fatigue test rack; and the travel switch is a limit position travel switch of the hand brake operating cylinder (4). By using the technical scheme, the ascending process of the cylinder is controlled by the time relay and the travel switch together, and the ascending time of the cylinder is controlled by the time relay; a deflation device is adopted during loading of force on a ratchet and a tooth plate to guarantee that the load is fully loaded onthe ratchet and the tooth plate; the loading time is controlled by the time relay and can be flexibly adjusted according to a standard requirement; and the test rack has high universality and is suitable for generalization and application.

The invention relates to an automotive active engine mount capable of energy regeneration and transmitting force perception. The automotive active engine mount consists of an active engine mount actuator body and a control circuit system, wherein the active engine mount actuator body mainly consists of rubber springs, a base, a position-fixing pin, a metal framework, an electromagnetic linear module and a piezoelectric module; the upper end and the lower end of the active engine mount actuator body are respectively connected with an engine body and an automobile frame through connecting bolts;and an actuator control system mainly consists of an energy recovery module, a controller, a storage battery voltage sensor, a controllable current source, a rotating speed sensor, a force sensor, anactuator energy regeneration voltage sensor and a relay. The invention also relates to a control method of the automotive active engine mount. The automotive active engine mount is novel in structureand high in practicability and is capable of significantly reducing the impact of engine vibration on a chassis and the automobile body, improving the ride comfort of an automobile, reducing the noise in the automobile, recovering the energy of the engine vibration, reducing the energy consumption of the automobile and achieving the purpose of improving the performance of the entire automobile while reducing the energy consumption.

An image processing apparatus includes a driver control unit configured to perform processing relating to uninstallation or updating of a driver associated with a device, and a relay unit configured to switch a storage destination of device configuration information which has been transmitted from the device associated with the driver to another storage destination in response to switch information, and to store the device configuration information in the other storage destination.

The invention relates to a reactance relay and a re-closing method, the reactance relay is based on the current of a fault point of a mixed circuit of a high-voltage cable and a trolley wire, the reactance relay based on the current of the fault point is the reactance relay based on information of momentary current on two sides of the circuit, the momentary current on two sides of the circuit is utilized, capacitance current of a trolley wire circuit and a cable circuit and the current of a shunt reactor of the trolley wire are compensated, and the precise current of the fault point can be obtained by calculation. As for the mixed circuit of the high-voltage cable and the trolley wire without the shunt reactor, a protector on the trolley wire side is used for judging whether the re-closing is started or not, the protector on the trolley wire side always adopts the synchronous check way for superposition, the action range of the reactance relay is set to the junction of the trolley wire and the cable, if the reactance relay acts, a fault occurs in the trolley wire circuit, the re-closing is started, otherwise, the re-closing is locked. The re-closing is started when the fault occurs in the trolley wire of the mixed circuit, and the re-closing is locked when the fault occurs in the cable.

The invention discloses a semi-persistent scheduling method and apparatus. The method comprises: semi-persistent scheduling configuration information sent by a base station is received through a firstinterface and the semi-persistent scheduling configuration information is sent to a remote user device through a second interface to indicate a semi-persistent scheduling mode for information transmission between the remote user device and a relay user device; and a semi-persistent scheduling signaling sent by the base station is received by the first interface and the semi-persistent schedulingsignaling is sent to the remote user device through the second interface to indicate activation or releasing of a semi-persistent scheduling process between the remote user device and the relay user device. Therefore, the semi-persistent scheduling between the remote user device and the relay user device can be realized.

The invention discloses a derailment monitoring system of endless-rope continuous towing vehicles and a monitoring method of the derailment monitoring system. An inductance type proximity switch of the derailment monitoring system is installed on a shuttle car; the shuttle car is provided with an emitter; the emitter is connected with the inductance type proximity switch; the emitter emits detection signals of the inductance type proximity switch; a router is installed at one side of a tunnel; the router receives the detection signals emitted by the emitter and transmits the detection signals to a receiver; the receiver is connected with a PLC processor through a bus; the PLC processor is connected with a display screen; the PLC is also connected with a relay; and the relay is connected with a control switch of a winch. With the monitoring method of the derailment monitoring system adopted, the position of the shuttle car can be positioned in real time, and the operation state of the shuttle car can be judged, and if a sensor predicts derailment, alarm signals can be generated, and the motor of the winch can be locked, and therefore, major accidents can be avoided, and efficient and safe operation of a coal mine auxiliary transportation system can be ensured; and derailment prediction information and shuttle car position information can be combined together, so that fault points can be found timely, and therefore, maintenance and repair can be performed.

The invention provides a mobile video monitoring system based on cognitive radio. The mobile video monitoring system comprises a control center and a mobile terminal. The control center is wirelessly communicated with the mobile terminal through an ISM frequency band. The control center is used for monitoring communication quality and determining whether spectrum sensing and channel switching need to be carried out or not according to the communication quality. If data transmission between the mobile terminal and the control center cannot be recovered through the channel switching, the data transmission of the mobile terminal is relayed through a relay robot. The invention further provides a mobile video monitoring method. According to the mobile video monitoring system and the method, the unfixed communication frequency band is adopted, and in the ISM frequency band, channel interference is automatically sensed and avoided, and the interference problem is solved. The wireless signal fading problem is solved through power control and relay transferring, and therefore the real-time performance and reliability of video transmission are guaranteed. The mobile video monitoring system and the method do not depend on the coverage of the commercial wireless network, and have actual application significance in video monitoring in the emergency environment, the severe environment and the unknown environment.

The invention discloses a slave communication circuit, a slave, electrical equipment, a master-slave communication circuit and a method. The slave communication circuit comprises a slave universal asynchronous receiver transmitter and an optocoupler output conversion circuit, wherein the slave universal asynchronous receiver transmitter comprises a slave signal transmitting end; the first input end of the optocoupler output conversion circuit is connected with a power supply, and the second input end of an output photoelectric coupler is connected with the slave signal transmitting end; and the first output end of the output photoelectric coupler is connected with the power supply, the second output end of the output photoelectric coupler is connected with the input end of a relay, and theoutput end of the relay is connected with the master signal receiving end of a master communication circuit. According to the slave communication circuit, the slave, the electrical equipment, the master-slave communication circuit and the method, the influence of high low level due to the optocoupler transmission ratio characteristic can be eliminated, so that communication reliability is improved, and thus high and low level can be recognized by a master side chip under various situations.

The invention relates to a vehicle window controller based on temperature difference identification, comprising a motor for driving vehicle window glass to move, a relay for controlling the motor, an internal temperature sensor (1) arranged inside the carriage, an external temperature sensor (2) arranged outside the carriage, an A/D conversion module, a microcontroller and a relay-driving circuit, wherein, the internal temperature sensor (1) and the external temperature sensor (2) are connected with the microcontroller via the A/D conversion module, and the microcontroller controls the relay by means of the relay-driving circuit. The vehicle window controller of the invention controls the relay-driving circuit according to the temperature difference between the inside and the outside of a vehicle, thus automatically regulating the movement distance of the vehicle window glass and movement distance thereof per unit time, improving the comfort of a driver in the process of driving and enhancing driving safety.

The invention discloses automatic processing equipment for an axle hole. The equipment comprises a frame, a power head, a workpiece clamp, a hydraulic station and an electric control cabinet, and is characterized in that a hydraulic system trunk, a hydraulic charge branch, a hydraulic blocking branch, a hydraulic pushing branch, a hydraulic compaction branch and a hydraulic feed branch, wherein the hydraulic system trunk consists of an oil tank, a filter net, a variable pump, a one-way valve, a stop valve, an oil inlet pipeline and an oil return pipeline; the branches consist of a three-position four-way electromagnetic slide valve, a one-way throttle valve, a two-way oil pressure latching valve, a pressure relay, a charge cylinder, a blocking cylinder, a pushing cylinder, a compaction cylinder and a power head cylinder; the branches and the trunk form a complete hydraulic system of the automatic processing equipment for the axle hole; the frame is fixedly connected with the electric control cabinet, a downhill type sliding rack, a workpiece V-shaped positioning block, hydraulic moving components and drill tools; and each moving component is correspondingly provided with an inductance approach switch.

A relaying method performed by a half-duplex relay for a telecommunications system includes a reception stage of receiving codewords from sources during N uses of the transmission channel. The successive codewords correspond to B blocks, the first of which can be decoded independently of the other blocks. This stage includes a decoding step of estimating a message from each source based on received codewords. The relay performs an error detection and decision-taking step on messages decoded without error. The relay performs a stage of encoding a signal and forwarding it to a destination. The signal is representative of only messages decoded without error and includes channel encoding by an incremental redundancy code to obtain a channel encoded codeword. The relay passes from non-selective reception to selective reception after receiving B1 blocks and switches from the reception stage to the encoding and forwarding stage under control of the decision step.

The invention relates to a control system, in particular to a building water overflow automatic alarm control system, which aims to solve the problem that a scattered control manner adopted for preventing water overflow of buildings is not suitable for the existing buildings, and centralized control is needed. When tap water or water in a heater accidentally overflows, and overflow sensors are submerged, detection signals are provided for a building water overflow automatic alarm controller by the overflow sensors, the building water overflow automatic alarm controller carries out detection judgment on the signals of the overflow sensors, when the signals meet the action condition of the building overflow automatic alarm controller, a relay control circuit is controlled to act, an alarm circuit is enabled to send out an alarm signal, and an electromagnet valve or an electrically operated valve is driven to act to close an overflow water source. The building water overflow automatic alarm controller comprises one or more hysteresis voltage comparison circuits, and the hysteresis voltage comparison circuits take LM339 voltage comparator integrated circuits as core elements for forming comparison circuits with a hysteresis starting function and a hysteresis closing function. The building water overflow automatic alarm control system is used for monitoring water overflow in the buildings.

The invention discloses a remote-controlled intelligent socket comprising a signal acquisition module, a signal processing module, a single-chip microcomputer control module, a relay control module, a power module and a remote control terminal module. Data is processed by the signal acquisition and processing modules. On-off of household appliances is remotely controlled through the remote control terminal module according to a received signal. The single-chip microcomputer control module employs an STC12C5A60S2 single-chip microcomputer as a main control chip. Separate control is adopted, all socket jacks can be independently controlled and are not correlated, and control is made more convenient; the socket is of wide adaptability because of the adoption of the latest ZigBee technology; the socket has the characteristics of powerful functions, stable operation, low cost and low energy consumption, and has automatic and manual control modes; and the socket has the functions of timed powering off and real-time state display, management of electrical appliances is greatly facilitated, and the design can achieve good user experience.