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133 results about "Performance recovery" patented technology

ECMP path soft resuming method in MPLS-TP packet transmission network

The present invention relates to communication field, wherein an embodiment of the invention discloses an ECMP path soft recovery method in a MPLS-TP packet transfer network. The embodiment of the invention comprises the following steps: realizing functions of congestion discovering, congestion positioning, etc. by the expanded OAM information; transmitting TDM grouping dynamic clock by MPLS-TP for adjusting operation; path cracking of the bypass heavy routing; when congestion occurs, firstly adjusting TDM service data grouping length through a source end for improving the delay characteristic; adopting a local service for shunting to the service with overhigh speed for steering clear of the congestion routing; if local link resource is insufficient, informing the source end for adjusting the bandwidth allocation, allocating higher bandwidth resource on the other N-1 paths; if no enough resources can be allocated or the allocated resources are not adjusted under the principle of simplifying the operation, informing the routing module by the source end, and completing the calculation of the other routing through the mode of incremental computation according to the bandwidth request amount. The method of the invention reduces the time for recovering network congestion. The network flexibility can be enhanced through the mode of self-adapting grouping variable-length transmission, and the using efficiency of the protected resource is increased. The quick performance recovery of the service is realized through the mode of bypass heavy routing cracking. The quick combining operation at the branching point is completed with a special numbering and a signaling process.
Owner:BEIJING UNIV OF POSTS & TELECOMM

PID resistant device for solar photovoltaic component using non-isolated inverter

The present invention discloses a PID resistant device for a solar photovoltaic component using a non-isolated inverter. The device comprises a direct current power supply, a grounding switch, a diode, a timer and a control circuit. The PID resistant device of the present invention is able to automatically apply a positive to-earth direct current close to an open-circuit output voltage value of the solar photovoltaic component between the cathode at the voltage output of the solar photovoltaic component when the solar photovoltaic component is at a night inactive state, thereby counteracting the influence caused by the fact that the cathode at the voltage output of the solar photovoltaic component is at a negative voltage in the daytime, and realizing the suppression of PID phenomenon and performance recovery for the solar photovoltaic component and achieving the restoration of polarization effect generated in the daytime; furthermore, when the solar photovoltaic component is at an electricity generation state at the day time, the grounding switch 6 is automatically opened so as to effectively prevent the PID resistant device of the present invention from influencing the normal operation of the solar photovoltaic component.
Owner:JA YANGZHOU SOLAR PHOTOVOLTAIC ENG

Pavement structure for structure transfer and performance recovery of semi-rigid base asphalt pavement

InactiveCN101768914AAvoid damagePrevent or slow crackingRoads maintainenceEmulsionSurface layer
The invention discloses a pavement structure for structure transfer and performance recovery of a semi-rigid base asphalt pavement, which is characterized in that a transferred-structural cold recycled semi-flexible base is on the non-damaged semi-rigid base of the original asphalt pavement; a modified asphalt emulsion slurry seal layer is coated on a cold recycled semi-flexible base; an asphalt pavement bottom layer is on the modified asphalt emulsion slurry seal layer; a modified asphalt emulsion bonding layer is on the asphalt pavement bottom layer; and a surface abrasion layer is on the modified asphalt emulsion bonding layer. The construction method comprises the following steps of: a) cleaning the semi-rigid base asphalt pavement; and b) carrying out the structure transfer and performance recovery of the pavement. The invention has the advantages that the structure transfer of the damaged semi-rigid base of the original asphalt pavement and the damaged surface layer is realized, and the performance of the pavement is recovered and improved, the repaired pavement had good high-temperature stability and less water damage, and the cracking of the base can be effectively prevented, stopped or slowed down; not only the original pavement material is fully used, but also the energy is saved, and the second pollution on the environment is prevented; and the service function of the original pavement is recovered or improved, and the service life of the pavement is prolonged.
Owner:江苏世丰企业管理咨询有限公司

Method and device for recovering fuel battery electric pile performance

The invention relates to the technical field of a fuel battery, and discloses a method and device for recovering the fuel battery electric pile performance. The method for recovering the fuel batteryelectric pile performance comprises the following steps of starting a load; loading the current to 200A; enabling the fuel battery electric pile to continuously operate for 5min at 200A; setting the temperature difference of the fuel battery electric pile, the temperature of cooling water, the temperature of the air, the temperature of hydrogen gas, the dew point temperature of the air and the dewpoint temperature of the hydrogen gas; enabling the pressure of the hydrogen gas to be higher than the pressure of the oxygen; loading the current from 200 A to 300 A; continuously operating the fuelbattery electric pile for 30min at 300A; if the output power of the of the fuel battery electric pile equals to or is higher than the preset power, or the average voltage equals to or is higher thanthe preset voltage, the fuel battery electric pile performance recovery is completed. The method for recovering the fuel battery electric pile performance of the embodiment is simple and convenient; the realization is easy; the performance of the fuel battery electric pile in a non-operation state for a long time can be fast recovered, so that the performance recovery efficiency of the fuel battery electric pile is improved.
Owner:北京国鸿氢能科技有限公司 +1

Self-restoring micro-fluid inertia power switch device

The invention discloses a self-restoring micro-fluid inertia power switch device, which comprises a gallium-indium metal liquid drop, a poly(N,N'-dimethylacrylamide) (PDMA) base, a glass cover board, a liquid drop storage pool, a rectangular micro-channel, a U-shaped micro-channel and metal electrodes, wherein the liquid drop storage pool, the U-shaped micro-channel and the rectangular micro-channel are arranged on a polymethyl methacrylate (PMMA) plate; the metal electrodes are bonded on the glass cover board; the gallium-indium metal liquid drop is initially located in the liquid drop storage pool; and when the inertia force on a switch is greater than the threshold of a passive valve, a metal liquid breaks through the passive valve and enters a micro-channel electrode, and the switch is connected. The liquid flows to a cutoff passive valve in the U-shaped micro-channel at most; when the inertia force disappears, a capillary force difference of the liquid exists between two ends of the micro-channel, so that the liquid automatically flows to the initial position, and the property of the switch is restored. The self-restoring micro-fluid inertia power switch device disclosed by the invention is simple in structure, stable and reliable in contact; and compared with an existing micro-fluid inertia switch, the switch has self-restoring capability, and can be used for a plurality of times.
Owner:NANJING UNIV OF SCI & TECH

Reverse-blowing detection device for self-cleaning type filter element and fan

The invention relates to the technical field of filtering, in particular to a reverse-blowing detection device for a self-cleaning type filter element. The reverse-blowing detection device comprises a detection channel; a manmade dust sending pipe for artificially generating dust and a filter element section for filtering dust in air are arranged on the detection channel in sequence; a reverse-blowing device for reversely blowing the filter element of the filter element section is arranged on the filter element section; a first differential pressure transmitter for measuring the differential pressure between the front end and the rear end of the filter element section is also arranged on the detection channel; the dust is sent out through the manmade dust sending pipe, the reverse-blowing device is used for reversely blowing the filter section, and then, the differential pressure after reverse-blowing is detected through the differential pressure transmitter, so that the performance recovery situation of the filter element after the self-cleaning type filter element is reversely blown can be clearly analyzed. Through stimulation of the working conditions of the self-cleaning type filter element, corresponding data is obtained to help an enterprise to improve the quality and the performance of the filter element.
Owner:江苏盛伟燃气科技有限公司
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