57 results about "Relay logic" patented technology

An NH₃ applicator implement is equipped with a hitch arrangement for automatically effecting a connection with a tongue of an NH₃ nurse tank wagon. A quick-connect coupler assembly is provided for connecting the transfer hose of the nurse tank wagon to the supply hose of the implement. The quick-connect coupler assembly includes a first coupler section mounted to the applicator implement for powered, guided movement into engagement with a second coupler section mounted to the tongue of the nurse tank wagon. An electro-hydraulic control system including relay logic is used to first lock the fully coupled coupler sections together and then to engage the flow of NH₃ by remote actuation of a main on/off valve located at the nurse tank.

The invention discloses a computer interlocking system and a working method thereof, wherein the computer interlocking system comprises an interlocking machine, a communication gateway and a turnout, signal and railway execution unit; the signal execution unit comprises a signal lamp control unit, a protective unit and a signal acquisition unit, wherein the protective unit comprises a logic protection unit and a signal safety relay, the logic protection unit receives first signal state information and second signal state information respectively output by a first signal controller and a second signal controller, and the first signal controller, the second signal controller and the logic protection unit all receive system feedback information acquired by the acquisition unit; the first signal state information, the second signal state information and the system feedback information are logically compared by the logic protection unit through hardware, and a signal lamp abnormal signal for controlling the signal safety relay is output according to a comparison result; and under the condition that the signal lamp abnormal signal is output, the signal safety relay is only controlled by the signal lamp abnormal signal, so that the signal execution unit is led to be safe from faulty.

A sequential controller is provided for sequencing multiple electric loads such electric pumps. That is, for each cycle the next load is designated as the lead load in a round-robin fashion. The controller uses cost effective electro-mechanical relay logic an thus avoids conventional solid state technology. In order to sequence the loads on each successive cycle, the electro-mechanical relay connected to the sensors comprises a double-throw contact set. The double-throw contact set comprises two complementary contacts, both of which alternate between normally open and normally closed on each successive cycle. In this manner one each successive cycle, the pumps designated as the lead pump and the lag pump automatically alternate in a round-robin fashion. Further, when the lead pump is disabled the lag pump is immediately actuated without disruption of service.

The invention discloses a battery pack management system and a battery pack management method. The system comprisesa battery pack composed of n single batteries which are connected in series, and a main circuit composed of a resistive load R, and further comprises a temperature detection device, a temperature parameter regulation circuit, an optical coupler relay array, a pressure sensor, a current sensor, a main control chip, at least one relay logic control circuit, a first driving circuit, a second driving circuit, a control switch and a display panel. The battery pack management system can be used for detecting working parameters of each single battery of the battery pack, and estimating a residual capacity SOC index and an SOH health index of each single battery; when the working parameters of each single battery are abnormal, the single battery is regulated and protected, so that phenomena that a bucket effect of each single battery occurs so that normal work of the whole battery pack is influenced and the whole battery pack is damaged is avoided.

An audit monitoring system (10) is provided for use with any of a multiplicity of different coin operated vending machines (300). The audit monitoring system includes an interface assembly (102) for use in replacing an existing data link (330) within vending machine (300) and interfacing with row and column conductors (306) of vending machine (300). The interface assembly (102) is coupled to an audit monitoring assembly (100) which interprets the communications transferred between a controller (310), coin changer (322), bill validator (324), and motor matrix (304) of vending machine (300). Audit monitoring assembly (100) is powered from a power supply (302) of vending machine (300) and includes interface circuitry (110, 120, 130, 180, 190) for receipt of digital logic level signals, serial data or relay logic signals from vending machine (300). Additionally, the data retrieval terminal (20) may be removably coupled to the audit monitoring assembly (100) through either a hard wired coupling (254) through a serial interface (250) or alternately by means of infrared optical signals (12, 22) through an infrared interface circuit (260).

The invention discloses a system for automatically generating interlocking software based on Boolean logic. The system comprises a database analysis module, a class module, a logic variable module, a logic tree module, a logic script generating module and a binary file generating module. The database analysis module receives original trackside data and screens out information needed by interlocking logic. The class module defines different types in the interlocking logic. The logic variable module defines class member variables and attributes of the class member variables. An interlocking logic rule base module defines grammatical rules based on the interlocking logic. The logic tree module is used for transforming a Boolean expression into a multi-fork tree structure. The logic script generating module is used for generating instantiated interlocking station interlocking scripts. The binary file generating module is used for generating instantiated interlocking station binary files. According to the automatically-generated interlocking software, a relay logic expression familiar to signal technicians serves as an expression form of codes, a rule base can be modified only in the mode similar to a natural language in the modification process, a large amount of development time is saved, and work efficiency is improved.

The invention discloses a signal execution unit of a computer interlocking system and a working method thereof. The execution unit comprises a signal lamp control unit, a protective unit and a signal acquisition unit, wherein the protective unit comprises a logic protective unit and a signal safety relay; the logic protective unit receives first signal state information and second signal state information which is output by a first signal controller and a second controller respectively and represents the working state of each signal lamp control unit; the first and second signal controllers and the logic protective unit receive system feedback information acquired by the signal acquisition unit; the logic protective unit performs logical comparison on the first and second signal state information and the system feedback information through hardware, and outputs a signal lamp abnormal signal for controlling the signal safety relay according to a comparison result; and under the condition that the signal lamp abnormal signal is output, only the signal lamp abnormal signal is used for controlling the signal safety relay to ensure that the signal execution unit finishes fault oriented safety.

The invention relates to an automatic control system for a metal binding machine and a control method. The metal binding machine is a steel belt binding machine; a mechanical system comprises a belt distributor, a guiding device, a leveling machine, a moving rack, a binding machine head and a guiding chute which are arranged along a steel belt conveying path; the control system comprises an electrical control system and a pneumatic control system; the electrical control system comprises a master controller as well as a touch screen, a signal detection unit, a speed control unit, a pneumatic control unit and an emergency stop unit which are connected with the master controller respectively; and the pneumatic control system comprises an air compression station, an air compressor and a pneumatic valve stand. With the system and the method, programmable logic controller (PLC) procedure and relay logic combined control and alternating-current variable-frequency control are adopted, whole-process automatic control including belt conveying, firm grasping, belt winding, tightening, buckling, cutting and the like is realized, real-time monitoring of the action process and efficient and automatic binding and packaging are realized, and the automation degree and the use performance of the metal binding machine are greatly improved.

The invention discloses an automatic air supplement system and air supplement method for an oil pressure device of a hydropower station. A pressure and pressure difference transmitter is used for measuring and processing pressure and oil level parameters of a pressure oil tank, a traditional contact pressure meter or a mechanical pressure relay and a float annunciator which are adjusted difficultly and fatigued and damaged easily are replaced, and accordingly, pressure and oil level parameters of the pressure oil tank can be measured reliably and continuously. A programmable logic controller and peripheral apparatuses serve as a measuring and control center of the oil pressure device, the traditional relay logic control is changed into intelligent computer program control, and accordingly, control of various working conditions and processing and transmission of information of the oil pressure device can be completed automatically and reliably, and a real automatic air supplement function based on reliable measuring of pressure and oil levels of the pressure oil tank can be implemented.

A centralized fuel or fuel monitoring, control and dispensing system operating under the control of a modern solid state programmable logic controller (PLC) that provides control options with capabilities far exceeding those available from relay logic systems. The system also incorporates compliance with the latest EPA mandates by accepting inputs from water and gasoline sensors that monitor the condition of the required “tank within a tank” dual storage tanks. If a fault condition is detected, the system will force a safety shutdown in the affected part of the installation. The PLC provides centralized monitoring, controlling and reporting functions to the operators of fuel dispensing operations such as self-service gas station complexes and fuel depots. Remote monitoring and programming of the PLC is provided by an internal modem through any available communications link.

An audit monitoring system (10) is provided for use with any of a multiplicity of different coin operated vending machines (300). The audit monitoring system includes an interface assembly (102) for use in replacing an existing data link (330) within vending machine (300). The interface assembly (102) is coupled to an audit monitoring assembly (100) which interprets the communications signals transferred between a controller (310), coin changer (322) and bill validator (324) of vending machine (300). Audit monitoring assembly (100) is powered from a power supply (302) of vending machine (300) and includes interface circuitry (110,120,130) for receipt of digital logic level signals, serial data or relay logic signals from vending machine (300). Additionally, the data retrieval terminal (20) may be removably coupled to the audit monitoring assembly (100) through either a hard wired coupling (254) through a serial interface (250) or alternately by means of infrared optical signals (12, 22) through an infrared interface circuit (260).

The invention relates to the technical field of rail traffic and particularly relates to a system and a method for online monitoring turnout junction errors in real time by virtue of the state of a relay. The method comprises the following steps: emitting light beams by virtue of a light emitter according to a preset logic time sequence, wherein the light beams can be shielded by an armature of the relay under a suction state; receiving the light beams which are not shielded by the armature by virtue of a light receiver, and generating a corresponding relay logic time sequence; monitoring curve characters of a motor current by virtue of a current sensor; and respectively carrying out comparison on the relay logic time sequence and the preset logic time sequence as well as the curve characters of the motor current and preset curve characters, and when normal data occurs, triggering an assessment mechanism. According to the method, the relay relevant with a turnout junction is monitoredin real time, the working condition of the turnout junction is judged according to the condition whether the light beams are received by the light receiver, and the turnout junction errors can be monitored in real time through the combination with the change state of the motor current.

The invention discloses a double-pump automatic circular water charging system of a coal mine hydrostatic tank. The system comprises an automatic hydrostatic tank water level monitoring relay and a double-pump automatic circular control circuit, wherein the automatic hydrostatic tank water level monitoring relay comprises a hydrostatic tank low water level probe, a hydrostatic tank high water level probe, a semiconductor turning circuit and a hydrostatic tank water level output relay; the semiconductor turning circuit consists of a transformer, a voltage stabilizing circuit, a triode, a diode and a resistor; the double-pump automatic circular control circuit comprises a first deep well pump motor contactor, a second deep well pump motor contactor and an automatic circular control relay logic control circuit; the automatic hydrostatic tank water level monitoring relay provides a low water level pump starting relay contact signal and a high water level pump stopping relay contact signal; and the double-pump automatic circular control circuit realizes an automatic circular control function of two deep well pumps according to the height of the water level of the hydrostatic tank. Through the system, automatic circular work of a water charging pump of a coal mine ground hydrostatic tank is realized to alternately and automatically charge water; and high water level automatic monitoring and low water level automatic monitoring of the coal mine hydrostatic tank are realized.

The automatic power on-off device for electric locomotive consists of a host machine and auxiliary contact lines, and the contact line feeding power line, the contact line of the controlled electric locomotive and the pantograph constitute the control system. The host machine includes a machine core comprising a logically controlling relay system, a main circuit, a heat dissipating system, etc; and a explosion suppressing and heat dissipating casing. The host machine is connected to the outer auxiliary contact lines and inner auxiliary contact lines through the power-off signal line and power-on signal line and connected to the power line and controlled electric locomotive contact line through the feeding cable and the load controlling cable.

The invention provides a safety card control system for CRH (China railway highspeed) climbing operation based on three layers of logic interlocking. The safety card control system comprises a relay logic interlocking system, a PLC (programmed logic controller) logic interlocking system, and a software logic interlocking system, wherein the relay logic interlocking system, the PLC logic interlocking system and the software logic interlocking system are respectively connected with a climbing operation card issuing unit, an isolation switch control unit, a ground rod control unit, a safety door control unit, a color lamp guide unit, and a safety warning unit; the PLC logic interlocking system is connected with the relay logic interlocking system and the software logic interlocking system. The safety card control system has the advantages that by realizing the three safety card control defense lines, namely relay logic interlocking, PLC logic interlocking and software logic interlocking, when one defense line fails or has mistakes, the other two defense lines still can realize the safety card control function; the logic control is stricter, and the safety card control is more perfect; the reliability and safety of the system are improved, and the CRH climbing operation safety is guaranteed.

The invention relates to a total failure autostop relay protection circuit for a master control module of a digital electro-hydraulic control system of a steam turbine. The circuit has an autostop relay controlled by soft logic. The autostop relay protection circuit which adopts hardware electric elements is formed by a time relay and the prior relay which are connected according to the 'AND' logic. A wire pad of the time relay is connected with an output module of a master control member; and a normally-open contact of the prior relay is connected in parallel with a normally-open contact of the autostop relay controlled by the soft logic. The total failure autostop relay protection circuit has the advantages that under the condition that a soft logic control system of the steam turbine has failure, the steam turbine is automatically stopped through hard wiring relay logic, thereby ensuring the safety of the steam turbine.

The invention relates to an automatic power-on and power-off device for a contact wire of an electronic electric locomotive, which consists of a host machine and an auxiliary contact wire, wherein an on-off control system is formed in virtue of a contact line feed power cord, a controlled electric locomotive contact wire and a pantograph. The host machine comprises a machine core which is formed by an electron, a relay logic control system, a thyristor trigger control system, a main tie line, a cooling system and the like, and a flameproof and heat dissipation shell; and the host machine is connected with an outer side auxiliary contact wire and an inner side auxiliary contract wire respectively through a power-off signal line and a power on signal line which pass through a control signal line nozzle of the host machine, and is connected with the power cord and the controlled electric locomotive contact wire respectively through a feed connecting wire cable and a load control line cable which pass through a load wire nozzle of the host machine.

The embodiment of the invention provides a train door logic intelligent control system based on an intelligent control unit. The train door logic intelligent control system comprises a first intelligent control unit, second intelligent control units and door controllers, wherein the first intelligent control unit is located on a selected vehicle, the second intelligent control units are located atthe rest of the vehicles, and the door controllers are located at all the vehicles; after the first intelligent control unit acquires door control operation information, and the corresponding door control instruction is output through the corresponding door control instruction output ports; after the corresponding door control instruction input ports of the first intelligent control unit and thesecond intelligent control units receive the door control instruction, the corresponding door controller control ports are driven to control the door controllers of the vehicles to execute the door control instruction. According to the train door logic intelligent control system based on the intelligent control unit provided by the embodiment of the invention, through the use of a contactless control system, the problems of complex logic control circuit, abnormal contact adhesion, circuit board burning loss and the like of a current multiple unit relay are solved, meanwhile, the cost is saved,the circuit is simplified, and the maintenance efficiency is improved.

The verification-processing device includes an acquisition unit that is configured to acquire a circuit logic model represented by an evaluation expression represented by a logical expression taking as variables, a relay, an element, and a connection line that form a relay logic circuit to be verified, the evaluation expression including at least a logical expression for a case where a failure event occurs in the relay logic circuit; and a determination unit that is configured to determine the logical state of an output of the relay when a failure event occurs in the element or the connection line, based on the circuit logic model.

A networked light control system includes light sensor circuitry that includes plural light sensors configured to sense an ambient light level, a control unit configured to generate a control signal that activates or deactivates one or more lights in a network of lights based on the ambient light level that is sensed by the light sensor circuitry, and relay logic circuitry configured to open or close a relay or a solid state switch for activating or deactivating the one or more lights based on receipt of the control signal generated by the control unit. The relay logic circuitry is configured to control the relay or the solid-state switch responsive to a failure in the control unit.

The invention provides a network remote wake-up method and system for computers. The method comprises the following steps: S100, a relay logic control module is set on a wired network link of a computer, wherein the relay logic control module is used for realizing network wakeup in a standby power supply turn-off state; S200, when the computer is in a power-on state, the relay logic control module opens a wired network link to enable the network to be in a normal communication state; S300, when the computer is in a shutdown state, a sleep state, or a dormant state, the relay logic control module closes communication of the wired network link and is in a state of receiving a wake-up signal of a network end; when the wake-up signal is received, the relay logic control module enables the computer to enter a normal startup process. The system comprises the computer and the wired network link, the computer is connected with the wired network link, the wired network link is provided with the relay logic control module, and the relay logic control module is used for realizing network wakeup in a standby power supply turn-off state.

The invention belongs to the technical field of washing device control and relates to a high pressure water gun pump station gunlock interlocking control method. The method includes the following steps that A. a one-way valve is arranged on a water supply pipeline connected with a high pressure water gun and a high pressure water pump, a pressure switch is arranged on each side of the one-way valve, the output ends of the two pressure switches are connected with a controller, and an output relay of the controller is connected with the high pressure water pump; B. the control logic of the controller is arranged to be that when the two pressure switches detect a non-pressure signal simultaneously, namely the logic value is 0, the logic value of the output relay of the controller is 1, and the high pressure water pump is operated; when any of the two pressure switches has state change, namely the logic value is from 0 to 1 or from 1 to 0, the logic value of the controller changes from 1 to 0, the controller outputs a stopping signal to the high pressure water pump in a delaying mode, and the high pressure water pump can stop in a delaying mode. The high pressure water gun controls the high pressure water pump and achieves the effects of saving energy and being safe and wide in adaptability.