197results about How to "Protect normal operation" patented technology

The invention discloses a power distribution cabinet monitoring system and a method. The system comprises a fault detection module, an intelligent fire protection module and a main control platform. The fault detection module is used for real-time data monitoring and fault analysis for a power distribution cabinet, the main control center is used for receiving the fault information of a power device, according to the fault position, an alarm module A is started to control the intelligent fire protection module to start an alarm unit B and a fire protection control unit, the execution mechanism at the field of the power distribution cabinet is controlled to control the automatic regulation of the temperature and the humidity at the internal portion of the power distribution cabinet, on-off of the loop power supply of the power distribution cabinet and the automatic switch-on of the fire protection device are controlled. The multi-level fault analysis and monitoring from the operation condition of the power equipment to the microenvironment of the cabinet and the like are achieved, and multiple detection modes are set through multi-level fault early warning and flexible threshold values, so that potential crisis can be timely found, and meanwhile, the power supply of the power device in the power distribution cabinet can be controlled to be switched on and off and the fire protection device can be controlled to be switched on and off according to the fault warning, so that the bidirectional development of monitoring quantity and control quantity is balanced.

The invention discloses a control method for an electronic expansion valve, a self-adaptive control method for a heat pump, and a device thereof; wherein, the control method for the electronic expansion valve comprises the steps as follows: S110: the electronic expansion valve is started and initiated; a controller arranges the openness of the electronic expansion valve as an initial value; S120: after starting prearranged time, the controller determines the practical over-heat degree of the electronic expansion valve; S130: controller compares the practical over-heat degree with a destination over-heat degree so as to determine the optimum openness value domain of the electronic expansion valve, and S140: the controller adjusts the openness of the electronic expansion valve to the optimum openness value domain. Therefore, automatic regulation of refrigerant flux and throttling degree of the heat pump device according to the working conditions can be ensured, the system is protected and runs at a best state, the optimum openness of the electronic expansion valve can be quickly gained, the lag time is greatly reduced, and the throttling degree of the system can be adjusted according to the running state.

The invention provides a flat electrode supported ceramic electrolyte battery. The structure of the battery is a vertical distribution type and takes a supporting electrode layer as the center. The supporting layer has a hollow porous structure. The side surface of the supporting layer is provided with an opened end, through which air can be introduced into the hollow holes. Compared with the prior art, when the flat electrode supported ceramic electrolyte battery runs, three phase boundaries where electrochemical reactions happen are arranged on the upper side and low side of the supporting electrode layer, thus generated thermal stress is effectively neutralized, thermal stress is largely reduced, the thermal damage to electrolyte and electrode is avoided, and the flatness of battery during the battery sintering process can be maintained. When the supporting electrode layer has a large thickness, the battery size is increased, the battery strength is enhanced, moreover, the preparation technology is simplified, and the preparation cost is reduced.

The invention relates to the technical field of air conditioning devices, in particular to a device and method for detecting the quantity of refrigerants and an air-conditioner with the device for detecting the quantity of the refrigerants. The device for detecting the quantity of the refrigerants comprises a plurality of temperature sensors, a temperature collection meter and a calculation terminal. The temperature sensors are installed on the air-conditioner and electrically connected with the temperature collection meter. The temperature of the middle of a condenser, the temperature of an outlet of the condenser, the temperature of an inlet of an evaporator and the temperature of an outlet of the evaporator of the air-conditioner are correspondingly measured through the multiple temperature sensors of the device for detecting the quantity of the refrigerants, transmitted into the temperature collection meter of the device for detecting the quantity of the refrigerants through a condenser middle temperature collection wire, a condenser outlet temperature collection wire, an evaporator inlet temperature collection wire and an evaporator outlet temperature collection wire of the device for detecting the quantity of the refrigerants, and then transmitted through the temperature collection meter to the calculation terminal electrically connected with the temperature collection meter for analyzing and calculating the quantity of the refrigerants of a current air conditioning system. The device for detecting the quantity of the refrigerants is simple in structure and convenient to operate and measure, and whether the quantity of the refrigerants of the current air conditioning system is proper or not can be conveniently detected.

The invention provides a refrigerant leakage protection control method, a controller and an air conditioner. The refrigerant leakage protection control method comprises the steps of acquiring a current operation condition of the air conditioner, acquiring maximum frequency and target exhaust temperature corresponding to the current operation condition according to the current operation condition, and adjusting the maximum frequency under the current operation condition according to a preset control strategy if detecting that the exhaust temperature of a compressor is greater than the target exhaust temperature under the current operation condition for a first preset time period, so as to reduce the maximum frequency under the current operation condition. The method can protect the air conditioner, without delaying the operation of the air conditioner when a refrigerant leaks.

The invention discloses a method and a system for implementing switching of a master server and a standby server. The method comprises the following steps that a gateway broadcasts a first ARP (Address Resolution Protocol) request when the standby server monitors that the master server cannot respond to a second ARP request; the standby server which has the same IP (Internet Protocol) address as the malfunctioning master server receives the first ARP request, an MAC (Media Access Control) address of the standby server is transmitted to the gateway through a standby exchange and a host exchange. According to the method and the system, the fault condition of the master server is monitored by the standby exchange, so that when the master server has a fault and cannot respond to the second ARP request, the standby server corresponding to the master server is started to respond the first ARP request so as to complete mutual switching of the master server and the standby server. On the one hand, compatibility of service application of the present network is guaranteed; on the other hand, switching of the master server and the standby server is simply implemented, and a cluster function of the server is not needed. Therefore, the investment and the operation of the existing network equipment are effectively protected, and safer and faster data storage assurance is brought to enterprises.

An adaptive method for judging permanent fault of high voltage electric network includes carrying out steps as the follows if system is closed on permanent fault, speeding up action of protective device at that place and transmitting action signal and analog quantity to equipment side through delay, acting differential criterion and quickly outputting after offside tripping signal is received by protective device at equipment side, and driving permanent jump relay to lock step of local side re-closed .

The invention relates to a comprehensive partial discharge monitoring device and method. The comprehensive partial discharge monitoring device comprises an internal signal detection coil (1), an external high-configuration current transformer (3) and an external signal processing unit (2), wherein the internal signal detection coil (1) is located between a rubber insulation layer (4) and cable armor (5), and the internal signal detection coil (1) and the external high-configuration current transformer (3) are connected with the external signal processing unit (2); the internal signal detection coil (1) is used for judging whether a high-voltage cable has partial discharge; the high-configuration current transformer (3) is used for detecting the discharge capacity; the external signal processing unit (2) is used for receiving a transmission signal of the internal signal detection coil (1) and a signal of the external high-configuration current transformer (3) and computing the discharge charge quantity and judging background noise, and accurate partial discharge is realized. Compared with a relatively traditional partial discharge detection technology, the comprehensive partial discharge monitoring device and method realize new technological breakthroughs, and multiple problems of difficulty in measuring the partial discharge capacity of the internal coil and multiple interference signals of the external current transformer are solved.

A method of water capture by pin-pointing likely excess flow locations and preventing flood damage. Captured water into temporary storage such as tanks, reservoirs, fabric tube arrays, or available lakes, can ultimately provide fresh water augmentation in many regions. Captured water will be tested, treated as needed, reclaimed and identified into central online storage sites. Not needed excess flows would be released after storm season. By flood damage and clean up avoidance, it provides ultimate long term flood pollution abatement for homes, businesses, farms and communities of affected US waterways.

The invention discloses a multicast message processing method, a multicast message processing device and multicast message processing equipment. The method comprises the following steps that: when receiving a multicast message reported by an exchange chip, a defense device extracts defense parameters of a multicast flow corresponding to the multicast message; the defense device counts the defenseparameters of the multicast flow to generate a defense statistic value; and when judging that the defense statistic value is equal to or more than a set defense threshold value, the defense device configures the defense parameters into a defense strategy of the exchange chip, wherein the defense strategy is used for instructing the exchange chip to discard the multicast message which is matched with the defense parameters. In the invention, dynamic statistics and analysis are adopted and the customized defense strategy is carried out to deal with the corresponding defense parameters, so a multicast table entry resource is effectively protected from occupation by an attack multicast flow on the basis of guaranteeing the normal multicast flow forwarding as much as possible, the too much consumption of a CPU processing resource by the attack multicast flow is avoided, and the too much consumption of the hardware source of the exchange core is also avoided due to the fact that the defensestrategy is dynamically configured in the exchange chip.

The invention provides a panel. The panel comprises a first plate body and a first conductive body. The first plate body comprises an outer surface; the first conductive member is arranged on the outer surface of the first plate body, wherein the first conductive member is electrically connected to a static protective circuit; the static protective circuit comprises a firt diode and a second diode; the static protective circuit is electrically connected to a first voltage end or a second voltage end; and the first voltage end and the second voltage end respetively have different voltage.

A vertical machine tool with double workbenches comprises a tool body, a first longitudinal workbench, a second longitudinal workbench and a turntable. The first workbench and the second workbench are fixedly arranged on two opposite sides of the machine tool, and the turntable is arranged between the first workbench and the second workbench; and the first workbench and the second workbench are longitudinally arranged side by side and are parallel to each other, slide rails are arranged between the turntable and the tool body so that the turntable can longitudinally reciprocate between the first workbench and the second workbench, a liftable spindle box is arranged on the turntable, a first safety barrier and a first cylinder are arranged between the first workbench and the turntable, the first cylinder is connected with the tool body and the first safety barrier, a second safety barrier and a second cylinder are arranged between the second workbench and the turntable, and the second cylinder is connected with the tool body and the second safety barrier. The vertical machine tool has the advantage that the turntable can drive the spindle box to spatially swift between the first workbench and the second workbench.

The invention relates to the technical field of digital drivers, and particularly discloses an all-function IGBT (insulated gate bipolar translator) digital driver. The all-function IGBT digital driver comprises a synchronous controller, a plurality of drivers are connected to the synchronous controller, each driver is connected with an IGBT, and a PCB (printed circuit board) current sensor and a voltage detecting circuit are integrated in each driver. The all-function IGBT digital driver has the advantages that communication with a computer is achieved, a user can download personal IGBT working parameters into the drivers via a software interface, new IGBT operating parameters can be executed after the drivers are electrified again, the user can select working modes, including a single-tube mode, a parallel connection mode and a serial connection mode, of the drivers in software, and the drivers can work according to user setting; in parallel-connection or serial-connection application, the drivers are capable of automatically adjusting the parallelly connected IGBTs to enable the same to be in dynamic current-sharing or the serially connected IGBTs to enable the same to be in dynamic voltage-sharing, and the drivers are set into the single-tube driving mode by default.

According to the embodiments of the invention, a core business processing method and apparatus are disclosed, which relate to the communication technology field and are applied to network equipment. The method comprises the following steps: detecting whether a local system resource is sufficient or not; and when the local system resource is detected to be insufficient, according to the corresponding relationships between the pre-stored businesses and their priorities, shutting down the started businesses successively from the low priorities to the high priorities until the local system resource becomes sufficient. The priorities are set in advance according to the importance of the businesses. According to the embodiments of the invention, the operation of the core business of a network can be ensured and the stability of network equipment is also increased.

The invention discloses a quick freezing device for aquatic products. The quick freezing device structurally comprises a quick freezing device, an indictor lamp, a water bucket, a vertical curtain fixing plate, a vertical curtain, a carrying conveyor belt, a roller fixing seat, a fixed frame, a lock, a box door, a hinge, a non-slip pad, a baffle, a rivet, an operation key and a display screen; thebottom of the indicator lamp is fixedly and vertically connected with the top of the quick freezing device; the bottom of the water bucket is fixedly connected with the top of the quick freezing device. The quick freezing device for the aquatic products, disclosed by the invention, has the benefits that the quick freezing device is arranged on the structure and makes water cleaner and safer through filtering, so that a quick freezing effect is improved, and the food safety is ensured; with the adoption of a deicing plug, ice blocks are prevented from accumulating too much inside the device, further the normal operation of the device is protected, and the service life is prolonged; meanwhile, a top rod can enable the quickly-frozen products to be normally delivered one by one, so that thedevice is more smooth to run, and the problems of deicing and ice-breaking by a user at the later stage are solved.

The invention provides an anti-electricity shed crossing multiple existing electrified railways. The anti-electricity shed comprises stand columns and a crossing protective device arranged above the stand columns; the stand columns are distributed on the two sides of a track set to be crossed and arranged in the operation direction of the track set to be crossed, the crossing protective device comprises a steel base plate, a transverse beam, a 64-type railway military beam and an anti-electricity insulation device; the steel base plate is welded to the tops of the stand columns, the beam is welded to the top of the steel base plate, the transverse beam is arranged in the operation direction of the track set, the 64-type railway military beam is erected in the direction perpendicular to thebeam so as to be applicable to crossing the track set, and the anti-electricity insulation device is installed on the top of the 64-type railway military beam. The anti-electricity shed has the advantages that normal safety operation of the railway can be protected, it is ensured that construction work above the railway is not affected by high voltage current, and the construction safety is protected.

The invention provides a lightning protection device for an ultrasonic welding machine. According to the device, a common-mode filter circuit receives current signals of a power grid; a surge current suppression circuit receives common-mode filter signals output by the common-mode filter circuit, and the common-mode filter signals are subjected to suppression processing through the surge current suppression circuit; a surge current absorption circuit receives surge suppression signals output by the surge current suppression circuit and carries out absorption processing and sampling processing on the surge suppression signals; and a recognition and reset circuit receives sampling signals output by the surge current absorption circuit, and after the recognition and reset circuit carries out recognition and reset processing on the sampling signals, recognition signals and/or reset signals are output. According to the lightning protection device, it can be guaranteed that the ultrasonic welding machine normally runs on the occasion with the high surge current, and meanwhile an operator can know the running condition of the power grid in time.

The present invention relates to a protection mechanism for external device of information processing equipment and its method. It is characterized by that when an external device connected with an information processing equipment by means of a communication interface is operated and an external impact is detected by external detection and protection mechanism of said external device, said protection mechanism can promptly protect said external device self-body against external impact, at the same time said protection mechanism can utilize signal transmission of said communication interface between external device and information processing equipment to further dynamically protect the operation of said information processing equipment.

The invention relates to a method for control of a pressurised air supply system for a motor vehicle (10), said system comprising a drive motor (1) for driving the motor vehicle, which drives an air compressor (3) by means of a drive connection (2), or said drive connection for driving the air compressor may be switched on. Said method comprises the following method steps: in a supply condition, the air compressor is driven by the drive motor and connected with the air supply side (3.1) thereof to a compressed air system (5) of the motor vehicle (10), such that compressed air is supplied to the compressed air system, in a non-supply condition, the air compressor is not driven and/or is not connected to the compressed air system, whereby the switching of the supply or non-supply condition is carried out on the basis of a comparison of at least one switch pressure value with a pressure (25) in the compressed air system (5) and the topography of the stretch of road (11) on which the motor vehicle (10) is travelling is recorded, said topography includes the profile of the path (12) which the vehicle (10) must cover within a directly following period of time and/or path distance to a given destination. At least one switch pressure value (20,30) is fixed on the basis of the determined topography.

The invention provides a bobbin shunt-wound machine and belongs to the technical field of textile. The bobbin shunt-wound machine solves the problems that an existing bobbin shunt-wound machine is uneven in yarn winding, low in winding efficiency and the like in the prior art. The bobbin shunt-wound machine comprises a rack, wherein a first installation plate and a second installation plate are fixed on the rack, a plurality of first bobbin inserting rods which are used for holding main bobbins are fixed on the first installation plate, a plurality of second bobbin inserting rods which are used for holding auxiliary bobbins are arranged on the second installation plate, one end of each second bobbin inserting rod is provided with a driving mechanism which drives the second bobbin inserting rod to rotate, the other end of the second bobbin insertion rod is the inserting end, a yarn guide rod is arranged between each first bobbin inserting rod and one second bobbin inserting rod, each yarn guide rod can lead yarn arranged on one first bobbin inserting rod to one second bobbin inserting rod, each yarn guide rod and each bobbin inserting rod are parallel, one end of each yarn guide rod is provided with a through hole which allows yarn to pass through, and a stretching and retracting mechanism is arranged on each yarn guide rod and can drive the yarn guide rod to move upward and downward. The bobbin shunt-wound machine has the advantages of being even in yarn winding and high in efficiency of yarn winding.

The invention discloses an under voltage protection (UVP) device of a server PSU power supply. The device includes the PSU power supply and a server CPU, and further includes: a voltage sampling module, which collects output voltage of the PSU power supply to obtain sampled voltage, and transmits the sampled voltage to a voltage comparison module; the voltage comparison module, which compares thesampled voltage with a preset voltage threshold value, and transmits a comparison result to a frequency-reduction control module; and the frequency-reduction control module, which controls, accordingto the comparison result of the voltage comparison module, whether frequency reduction is carried out on the server CPU. According to the device, a feedback result can be effectively sent to the server CPU in time, frequency reduction of the server CPU can be controlled in time, thus the problem that too much power consumption of the server CPU causes drastic reduction of the output voltage of thePSU power supply is solved, and power-down, restarting or even a crash phenomenon, caused by too low output voltage of the PSU power supply, of a system is avoided.

The invention discloses a novel server heat dissipation device and belongs to the technical field of computer servers. The novel server heat dissipation device is used for solving the problems that heat dissipation of the conventional large computer server is realized by a fan carried by the server or the server is placed in a constant temperature room, the heat dissipation effect of the previousis poor and the latter is high in cost for maintaining the constant temperature in the room. The novel server heat dissipation device comprises a box body, a first heat dissipation assembly and a second heat dissipation assembly, wherein the first heat dissipation assembly comprises a breather pipe and an exhaust fan; the breather pipe is arranged on the top of the box body; the exhaust fan is arranged at the bottom of the box body; the second heat dissipation assembly comprises a radiator and heat-conducting fins; the radiator is arranged on the top wall of the box body; one ends of the heat-conducting fins are arranged on the radiator; the other ends of the heat-conducting fins penetrate through a box cover to be arranged outside the box cover; a bracket used for placing the server is arranged inside the box body and comprises a plurality of transverse plates; the two ends of the transverse plates respectively run through and extend out of the side walls of the box body; and a cooling water tank is arranged on a part, which extends out of the side wall of the box body, of the transverse plates.