56results about How to "Control does not affect" patented technology

The invention discloses a suspension control method and device used for an EMS type low-speed suspension train. The suspension control method includes the following steps: respectively collecting clearance signals, acceleration signals and current signals of sensor groups, enabling the clearance signals, the acceleration signals and the current signals of the two sensor groups corresponding to a same suspension module to be combined to calculate to obtain two suspension control variables, and enabling the two suspension control variables to serve as feedback to control electric currents of two single electromagnets of the suspension module to guarantee that the suspension clearance between the suspension module and a track is kept constant. The suspension control device comprises the first sensor group, the second sensor group and a suspension controller. The suspension controller comprises a suspension control board, a first suspension chopper and a second suspension chopper. According to the suspension control method and device, the defect, which can not be really overcome by a current single-point suspension control method, that two points inside the suspension module influence each other can be overcome, the number of the single-bogie suspension controller is reduced, the mass of the suspension controller is lightened, the manufacturing cost of the suspension controller is reduced, and the reliability of the suspension controller is improved.

The invention discloses a wireless entrance guard control system which mainly comprises five layers, namely a main server layer, an embedded server layer, a WiFi transport layer, a ZigBee coordinator control layer and a ZigBee node control layer, wherein the various layers can be flexibly matched to form six systems adapting to different application scenarios. According to the system, the ZigBee and WiFi wireless communication protocols are adopted and are combined with the embedded processor integrated management entrance guard system, the wiring is saved, lots of manual labor and wire cost can be saved, and the system has the characteristics of extremely low node/terminal power consumption, low cost and central controller update real-time property and is suitable for popularization and application.

The invention relates to a vehicle intelligent security brake method and the system thereof. The system comprises a signal detection unit for detecting an emergency brake signal for the emergency emergent brake and sending the emergency brake signal, and an anti-lock brake device mainly comprising an electronic control unit, an anti-lock brake execution device and a hydraulic brake device. The anti-lock brake device comprises a pressure accumulator and a hydraulic pump for boosting the pressure accumulator. The electronic control unit is used for receiving the emergency brake signal from the signal detection unit and converting the emergency brake signals into an initial signal, and then initiating the control of the pressure accumulator to complete the emergency brake under the pressure inside the pressure accumulator. The electronic control unit can change the control time sequence of the hydraulic pump and the pressure accumulator, so as to control the pressure relief of the pressure accumulator prior to the pressure supply to the hydraulic pump. Therefore, the initial speed of the system is increased, the performance of the system is enhanced, and the traffic accident is efficiently prevented.

The invention discloses a speech control vehicle-mounted navigation system which comprises a central processing unit, a data bus receiving and dispatching module, a GPS (global position system) module, a speech input module, an A/D conversion module, a signal preprocessing module, a characteristic vector extracting module, a speech recognition module and an I2C controller, wherein the GPS module receives a GPS signal to generate position information and has data communication with the central processing unit through the data bus receiving and dispatching module; the speech signal received by the speech input module is converted into a digital signal via the A/D conversion module and stored through the signal preprocessing module; the characteristic vector extracting module selects characteristic vector parameters from short-time speech frame, delivers the characteristic vector parameters to the speech recognition module for judgment, and outputs the recognition result to the I2C controller, so that the speech control of the vehicle-mounted navigation system by a driver is realized, driving is not affected while the navigation operation is performed, more time of the driver is saved, and convenience and practicality are realized.

The invention provides a map data downloading method and device, computing equipment and a storage medium, and the method comprises the steps: receiving the initial position information of a controlled role sent by a server under the condition that the connection with the server is established; detecting the movement condition of the controlled role, defining the position where the controlled roleis located as a first target position, and checking whether map data corresponding to the first target position are stored locally or not; if yes, loading map data; and if not, generating a request according to the association information of the first target position, sending the request to a server, receiving and loading map data which is sent by the server and is associated with the first target position, and storing the received map data. According to the method, when the client does not store the map data, the controlled role moves to the first target position, and it is determined that the map data corresponding to the first target position is not stored locally, the request is sent to the server, the map data associated with the first target position are received and loaded, and thelocal storage space is saved.

The invention relates to a user plane-based QoS control method in an LTE system. The method comprises the following steps of according to service demands, organizing the user plane-based information by terminal equipment and sending the user plane-based information to gateway equipment; receiving the user plane-based information by the gateway equipment, analyzing the information content of the user plane-based information and checking a QCI index value; on the condition that the QoS requirement is contained in the information content, detecting whether the user level meets required QoS parameters or not by the gateway equipment; on the condition that the user level meets required QoS parameters, organizing the standard signaling information dedicated to a bearer according to analyzed QoS parameters by the gateway equipment, and sending the standard signaling information to core network equipment. In this way, the dedicated bearer is established. According to the technical scheme of the invention, QoS requirements are beared by the user plane-based information. Therefore, the user plane-based QoS control method is suitable for all QoS-supported mobile communication systems.

The invention relates to a multi-factor coordinated multi-target control method for a greenhouse environment. The method comprises following steps of (1) constructing a greenhouse environment multi-factor coordinated multi-target control mode qualitatively; and (2) setting independent control manners for execution mechanisms of the greenhouse separately, controlling each execution mechanism with an environment factor as a threshold, and correcting the threshold with the help of a secondary environment factor, so as to realize greenhouse environment control. Compared with the prior art, the method has advantages of considering coupling of multiple factors, having high applicability, having simple logic and being easy to realize.

The invention discloses an electrical system for a highway tunnel. The electrical system comprises a power supply system, an illumination system, a ventilation system, a traffic control system, a firehazard alarm system, a video monitoring system, a broadcast and emergency telephone system and a control center; the power supply system supplies power to the different systems and ensures system operation; the illumination system and ventilation system are controlled automatically to ensure illumination and ventilation of the tunnel; lane indication of the traffic control system is realized by PLC control, and information of an information board is provided by the control center; the fire hazard alarm system and video monitoring system transmit information to the control center via a detector and a camera respectively; and the broadcast and emergency telephone system communicates with the control center bidirectionally to realize alarm and alarm notification. Subsystems are optimized indesign aimed at special construction and complicated electrical control of the highway tunnel, and the electrical system is characterized by being safe and stable.

The invention is aimed at providing a method used for mobile equipment and the mobile equipment.Compared with the prior art, the method used for the mobile equipment and the mobile equipment have following beneficial effects: by arranging touch panels on the back side and/or the side surface of the mobile equipment, touch operation on the touch panel is obtained when the touch panel is triggered in order to control the mobile equipment; without affecting arrangement and sizes of mobile phone icons, control over a mobile phone by a signal hand is achieved; the mobile equipment is user-friendly; operation difficulty is reduced; and user experience is improved.

The invention relates to a control input and output circuit for an alternating current servo control system for an electric fork truck. The existing product has the defects that the control precision, the safety, the reliability and the anti-jamming capability are insufficient. The control input and output circuit comprises a TMS320F2812 digital processing chip, switch control signal input and output circuits and an analog control signal input circuit, wherein the switch control signal input circuit comprises thirteen downward pulling resistors, twelve voltage division resistors, six upward pulling resistors, six clamp diodes, six filter capacitors, six operation amplifiers and a driving chip, the switch control signal output circuit comprises four downward pulling resistors, three current limiting resistors, an upward pulling resistor, a rectifying diode, four freewheel diodes and a driving chip, and the analog control signal input circuit comprises eight voltage division resistor, five clamp diodes, seven filter capacitors and four operation amplifiers. The control input and output circuit has the advantages that the sampling precision is ensured, and the reliability and the anti-jamming capability of the circuit and the safety of the system are improved.

The invention discloses a method for controlling an AMT (automatic transmission) clutch brake. Two parameters of brake signal and rotation speed of a motor are added to control a clutch for the method; when in heavy brake, the clutch is separated when the rotation speed of the motor is higher; when in light brake or no touch on the brake, the clutch is separated when the rotation speed of the motor is lower, namely the heavier the brake is, the earlier the brake is separated; the lighter the brake is, the latter the brake is separated; and the rotation speed of the motor is in proportion to weight degree of brake when the clutch is separated. According to the invention, through setting different rotation speeds of the motor, the clutch can be controlled according to the weight of the brake, thus the issue of stalling of engine caused by the over slow separation of the clutch in the heavy brake is solved, and simultaneously the control of the clutch in no touch on the brake is not influenced.

The invention relates to an array type heat collecting device and a control method thereof, and belongs to the field of solar heat utilization. The array type heat collecting device comprises a plurality of heat collectors and a driving system, wherein the heat collectors are distributed in an arrayed manner; the driving system comprises a power unit, a shaft transmission unit and a plurality of adjusting units; an input end of the shaft transmission unit is connected with an output end of the power unit; each adjusting unit comprises a clutch transmission structure, a first speed reducer and an output shaft; input ends of the clutch transmission structures are connected with an output end of the shaft transmission unit; output ends of the clutch transmission structures are connected with input ends of the first speed reducers through the output shafts; and the output ends of the first speed reducers are connected with the heat collectors. By the driving system of the array type heat collecting device, rotating power is provided for the rows of heat collectors through the power unit; the structure of the driving system is simplified; the cost is saved; and control on an optional row of heat collectors can be randomly stopped but control on the other rows of heat collectors is not affected.

The invention provides an accessory flow control device, method and system for a negative flow control excavator. The flow control device at least includes a main pump, a hydraulic operated directional valve, a throttle valve, a second shuttle valve, a pilot pump and an accessory rotating device, the accessory rotating device at least includes a rotary pilot valve and a first shuttle valve, the main pump at least includes a main pump first Pi port, a first oil port of the pilot pump is connected with one end of the throttle valve, and the other end of the throttle valve is connected with a first port of the hydraulic operated directional valve; the hydraulic operated directional valve further at least includes a second port and a third port, and the second port is connected with the rotarypilot valve through the first shuttle valve; and the third port is connected with the main pump first Pi port through the second shuttle valve, it is ensured that the pressure of the main pump firstPi port is always maintained at the pilot pressure, and thus the main pump always works at a minimum displacement. Accessory rotation operation can be automatically identified, it is ensured that themain pump works at the minimum displacement, the reliability of a motor is ensured, and control of other action operation for the main pump flow cannot be affected.

The invention, which belongs to the technical field of electrical appliance control, relates to a method for controlling an electrical appliance. The method comprises: a terminal sends a binding request to a server, wherein the binding request includes an identity identifier of an electronic controller and login information of a user; the server receives the binding request, binds the terminal with the electronic controller, sends a timing command to the electronic controller, wherein the timing command includes effective time of binding between the terminal and the electronic controller; andthe electronic controller starts timing after receiving the timing command and carries out corresponding controlling to control the electrical appliance when receiving a control instruction within effective time. In addition, the invention also relates to a system for controlling an electrical appliance. The electrical appliance can be controlled within limited time and the house owner is able tomanage electrical appliances in rooms in a unified manner; and a new tenant of the house is able to control the electrical appliances in the house successfully and thus obtains excellent housing experience.

The invention relates to a dynamic centering method of a vibration system under a vibration condition. The method comprises the following steps: S1, enabling a distance measuring module to measure the distance between a moving coil and the distance measuring module for multiple times and transmit the distance to a control module; S2, solving an average value of a plurality of distances; S3, judging whether the average value is greater than the centering value or not, if so, entering step S4, and if not, entering step S5; S4, judging whether the first difference value is greater than a first error value, if so, deflating the air bag, and if not, keeping the current state; S5, judging whether the second difference value is larger than the first error value or not, if yes, inflating the air bag, and if not, keeping the current state. Through the method, the operation on the air bag is determined according to the judgment on the difference value, the position of the centering state is adjusted by inflating or deflating the air bag, the inaccurate centering state caused by the influence of external factors is corrected, the overall structure is simple, the control is convenient, the centering effect cannot be influenced even if the air bag inclines, meanwhile, the precision is high, and automatic dynamic control is realized.

The invention relates to a configurable multi-channel IO direct connection type microprocessor system which comprises a microprocessor kernel, a memory module and a voltage conversion module, and themicroprocessor kernel is connected with a peripheral device through an AXI bus, an AHB bus and an APB bus. According to the system, a user can directly carry out multi-class and multi-group bus connection on the microprocessor core, and the microprocessor peripheral is directly connected with the microprocessor core through different bus interfaces. According to the system, the microprocessor kernel can control microprocessor peripherals, and reading and writing are not affected by other modules.

The invention discloses a traction-guide decoupling control method for a bilateral hollow-core linear synchronous motor. The method comprises the following steps: acquiring an expected speed value, an expected rotor offset value, speed values output by motors and rotor offset values; acquiring a first q-axis voltage and a second q-axis voltage of motor windings at the two sides according to the expected speed value, the speed values output by the motors and a pre-established motor electromagnetic force model; acquiring a first d-axis voltage and a second d-axis voltage of the motor windings at the two sides according to the expected rotor offset value, the rotor offset values output by the motors and a preset guide control equation; and acquiring the three-phase voltage of the motor at one side through conversion according to the first q-axis voltage and the first d-axis voltage, acquiring the three-phase voltage of the motor at the other side through conversion according to the second q-axis voltage and the second d-axis voltage, and conducting traction-guide decoupling control over the motors according to the three-phase voltage of the motor on one side and the three-phase voltage of the motor on the other side. Thus, independent control of traction and guiding of the motors is realized.

The invention discloses an equalization circuit for parallel charging and bi-directional flyback type double discharge equalization and a control method thereof, The invention can realize parallel charging, when any single battery reaches the set cut-off voltage, the single battery is isolated from the charging circuit, and finally all the single batteries stop charging due to reaching the set charge cut-off voltage, thereby achieving the purpose of forced equalization. A series of bi-directional flyback transformers are used to control Mosfet switch by PWM to change the circuit structure andbalance the single cell with the lowest SOC and the single cell with the highest SOC in the battery pack, The discharge equalization method considers the equalization of the highest SOC cell and the lowest SOC cell at the same time, which accelerates the equalization rate and can effectively reduce the inconsistency between each cell.