40results about How to "Normal control" patented technology

The invention discloses a neighbor discovery protocol graceful restart (GR) processing method and a device. The method comprises the steps that: GR equipment is determined to carry out active-standby switching, and messages used for informing neighbor GR equipment that the GR equipment carries out the active-standby switching is sent to the neighbor GR equipment; the GR equipment starts a timer to start timing, wherein the time of the timer of the GR equipment is not shorter than the time required by the active-standby switching of the GR equipment; and the GR equipment does not send reachability detection message before the timer exceed the time, and the active-standby switching of the GR equipment is completed. Through the neighbor discovery protocol graceful restart processing method and the device, the GR process is ensured to be successfully completed.

The invention discloses a multi-terminal control method and device based on wifi and belongs to the communication field. The multi-terminal control method comprises the steps: a mobile terminal receives service set identification (SSID) of a wireless access point (AP); if the SSID includes control identification, the SSID is accessed to the corresponding AP according to a wireless fidelity protocol, and control information is obtained through the AP. The multi-terminal control device comprises a receiving module, an access module and an obtaining module. By means of the multi-terminal control method and device based on the wifi, the control efficiency of the mobile terminal can be improved, and normal control of the mobile terminal is ensured.

The invention relates to the field of flight equipment and discloses a fireproof unmanned aerial vehicle system for fire site surveying. The fireproof unmanned aerial vehicle system comprises an unmanned aerial vehicle and a fine controller controlling the unmanned aerial vehicle in a wireless communication mode. Electronic speed regulators are installed on corresponding arms respectively, and semiconductor chilling plates are arranged between the electronic speed regulators and the arms. The fireproof unmanned aerial vehicle system further comprises two or more signal bridging devices arranged independently and used for carrying out mutual bridging and realizing wireless bridging between the unmanned aerial vehicle and the fine controller. According to the fireproof unmanned aerial vehicle system, the whole is made of fireproof material resistant to high temperature, and therefore the unmanned aerial vehicle can be operated normally and carry out surveying after entering a high-temperature fire site; the semiconductor chilling plates are arranged for dissipating heat of the electronic speed regulators, and therefore the temperature of the electronic speed regulators does not exceed the highest limit temperature even in the fire site; the multiple signal bridging devices are arranged and are used for bridging controlling signals and data signals, and therefore the unmanned aerial vehicle and the fine controller can realize continuous communication.

The invention belongs to the field of agricultural equipment and discloses a vegetable water planting control system. The system comprises a sensor set, a pump set, a planting formula and a controller. The sensor set includes a flow sensor for measuring conveying flow of nutrient solutions and a liquid level sensor for measuring a liquid level in a cultivation basin. The pump set includes a solution supplying pump for conveying the nutrient solutions to the cultivation basin and a water supplying pump for conveying water. The planting formula is configured to include a preset value, taking time as a variable, of the conveying amount of the nutrient solutions and a preset value of the liquid level in the cultivation basin. The controller enables the solution supplying pump and the water supplying pump to be started to convey the nutrient solutions and water to the cultivation basin respectively on the basis the supplying amount and the preset value of the liquid level obtained from theplanting formula, and enables the conveying amount of the nutrient solutions to reach the preset value of the supplying amount and the liquid level in the cultivation basin to reach the preset value of the liquid level. On the basis of the planting formula, the nutrient solutions and the water are automatically conveyed to planted vegetables, so that the vegetables grow normally. In this way, human participation is reduced, and requirements of agricultural knowledge and planting skills are not needed for planters.

The invention provides a sewage treatment biological oxygen demand (BOD) control method based on steady-state estimation of a PID-RBF and soft measurement of a least square support vector machine (LSSVM), and aims at solving the problem of hysteresis of BOD control in sewage treatment. The method comprises the steps of firstly, utilizing the LSSVM for conducting soft measurement on BOD, collectingvarious kinds of state data under control of PID, utilizing a radial basis function (RBF) network for learning to fit a relation between various states and steady-state output values of a PID controller under the states, then adopting a method of combining the trained RBF network for estimation of steady-state output with the PID controller for BOD control, and introducing integral control itemswhen an error is smaller than or equal to a certain predetermined value to improve the control precision. By means of the method, the defect of hysteresis of traditional PID sewage BOD control can beovercome, and stable BOD control is facilitated.

The present invention comprises: a flat main unit (1) wearable along the back of an operator; a cargo-operating unit (3) for holding cargo and extending frontward beyond the operator from the main unit (1); a lifting/lowering device (M1) for actuating lifting/lowering of the cargo operating unit (3); a control device (C) for controlling lifting/lowering actuation by the lifting/lowering device (M1); and a power supply device (V) for actuation, the lifting/lowering device (M1), the control device (C), and a power supply device (V) being arranged on the main unit (1), lined up on a flat surface (F) of the main unit (1).

The invention provides a load control method of a mobile management entity, which is executed by a base station and comprises the following steps: receiving an initial attach request of user equipment; selecting the mobile management entity in which the user equipment is to be switched; and acquiring the real-time state of the currently selected mobile management entity, returning to the previous step if the currently selected mobile management entity is in a load pre-control state or an overload state, and switching the user equipment into the currently selected mobile management entity if the currently selected mobile management entity is in a load normal state. The invention also provides a load control device of the mobile management entity, which is used for implementing the method. According to the load control method and the load control device of the mobile management entity, the mobile management entity can be avoided being repeatedly released and switched into the user equipment, the signaling interaction waste is avoided, and the network load is reduced.

The embodiment of the invention discloses a control program system parameter exception processing method and device, electronic equipment and a storage medium. The method comprises the following stepsof presetting a parameter bit of which each system parameter cannot be zero in a control program as an identification parameter bit; when the mainboard is powered on, reading system parameters from amainboard memory, and judging whether parameter values on the identification parameter bit in the system parameters are zero or not; recovering the system parameter with the parameter value of zero on the identification parameter bit to a default value, wherein the default value is stored in the mainboard memory; and synchronizing all the system parameters to an external control terminal. According to the technical scheme provided by the embodiment of the invention, abnormal zeroing of the system parameters on the mainboard can be avoided, and real-time response to control of each load of a heat pump system can be ensured so that the heat pump system works normally.

The invention discloses medical liquid food supply equipment for digestive system treatment, and belongs to the field of medical physiotherapy. The medical liquid food supply equipment for digestive system treatment comprises a hanging frame, a hoop, a thermostat, a liquid supply mechanism, a food supply box and a limiting frame; the hoop is fixedly installed at the top end of the hanging frame; a semicircular pressing piece is fixedly installed at the rear end of the hoop through a bolt; the liquid supply mechanism is fixedly installed on the right side of the hanging frame; and sockets in bilateral symmetry are fixedly installed on the edge of the front side of the hanging frame. The medical liquid food supply equipment for digestive system treatment is reasonable in structural design; the combined structure is quick to disassemble and assemble; materials can be efficiently turned over and synchronously crushed; a manual food supply and inverse pumping prevention structure is adopted, so that greatly reduces the cost; a stomach tube can be rapidly and conveniently limited, so that a patient feel more comfortable; the medical liquid food supply equipment for digestive system treatment is convenient and quick to use; liquid medicine and nutrient solution are accurately supplied; accuracy is high; the sanitary condition is good; the anti-reverse structure is simple and compact; a small number of parts are adopted; the overall size is reduced; and the practicability is very high.