46results about How to "High operation and maintenance costs" patented technology

The invention discloses a method for managing outer net access. The method comprises the following steps that: an intranet sends an access request through a first network device layer coupled with the intranet; the first network device layer calculates the flow of the access request sent by the intranet, and allocates the flow to each NAT (Network Address Translation) device coupled with the first network device layer according to a predetermined allocation condition using open shortest path first (OSPF) protocol; each NAT device receives the flow and forwards the flow to a second network device layer coupled with an outer net; and the second network device layer accesses the outer net using the access request carried in the flow, wherein each network device layer comprises at least one layer of network devices; and when the first network device layer comprises at least two layers of network devices, the OSPF protocol is run between network devices in which flow transmission occurs and which belong to different layers By adopting the method for managing outer net access, the operation and maintenance cost can be reduced. The invention also discloses a corresponding system.

The invention discloses a method for producing high-corrosion-resistance steel through twin-roll thin-strip continuous casting. The method comprises the following steps of (a) smelting: carrying out smelting according to the following chemical components in percentage by weight, 0.02-0.06% of C, 0.1-0.5% of Si, 0.4-1.7% of Mn, smaller than or equal to 0.02% of P, 4.0-6.0% of Cr, 1.0-3.0% of Ni, smaller than or equal to 0.007% of S, 0.004-0.010% of N, smaller than 0.001% of Als, greater than 250 of Mn/S, 0.007-0.020% of total oxygen [O]T and the balance of Fe and inevitable impurities; (b) continuous casting: adopting a twin-roll thin-strip continuous casting process; c) protecting in a lower closed chamber; d) online hot rolling; e) cooling after rolling: cooling the rolled strip steel ina gas atomization cooling manner; and f) strip steel coiling: directly coiling the cooled hot-rolled strip steel into a coil after the end with poor quality of the cooled hot-rolled strip steel is cutoff by an end shear, and controlling the coiling temperature of the hot-rolled strip to be 600-700 DEG C.

A laundry tunnel finisher including a tunnel providing a moisturizing zone therein having a non-linear conveyor pathway therethrough with curved portions adjacent the entrance and exit of the tunnel, at least one nozzle directed at the curved portions of the pathway, a hot water source supplying hot water to the at least one nozzle, a compressed air source supplying compressed air to the at least one nozzle, and a hot air source directing hot air into the tunnel, wherein hot water is atomized using compressed air and is sprayed through the at least one nozzle and mixed with hot air in the tunnel to raise the temperature in the moisturizing zone.

The invention discloses a system and a method for processing an access network. The technical scheme is characterized by comprising an access module, a switching module and a business processing module, wherein when the system is used for two layers of business, the access module forwards a message from a user side to the switching module for analyzing the two layers of business, and then the message is forwarded to an upper-layer network; when the system is applied to more than three layer of business, the access module analyzes the message from the user side to generate a user side forwarding message, and then the user side forwarding message is send to the switching module; the user side forwarding message is forwarded to the business processing module by the switching module; and the message is sent to the upper-layer network after the message is performed to more than three layer of business processing. According to the realization of the technical scheme of the embodiment of theinvention, the traditional optical line terminal system is smoothly updated.

The invention relates to a control system for adding chemicals into cooling water of a central air conditioner for operation and maintenance and a control method of the control system. The control system comprises a main controller, a water quality detection device, a blowdown device, a chemical adding device and a cloud platform. The blowdown device is provided with a plurality of driving devices and a plurality of automatic blowdown valves. The chemical adding device comprises a plurality of chemical adding metering pumps, a plurality of chemical adding buckets, a plurality of liquid level testing electrodes and a plurality of liquid level sensors. The cloud platform is provided with a communication module, a wireless router and the like. When the control system is applied, operation steps are simple and reliable, and observation is convenient; various functions such as online detection of the water quality, automatic operation of chemical adding after blowdown, automatic recording and statistics of chemical adding quantity and cloud platform monitoring can be achieved; and the automation degree is high, the control effect is good, and the control system has high application and popularization value.

The invention discloses an overhead transmission line fault type judgment method which includes the steps: acquiring fault waveforms of electric signals when an overhead transmission line is faulted; calling a pre-stored corresponding relation among the fault waveforms and fault types; determining the fault types corresponding to the fault waveforms according to the corresponding relation. By the aid of the technical scheme, the fault types are effectively and rapidly judged at low cost according to the fault waveforms at the first time, and subsequent rush repair operation is facilitated. Therefore, the method solves the technical problems that the fault types cannot be pre-judged at the first time in a traditional manual on-site line checking mode after faults happen, efficiency is low, equipment purchase, operation and maintenance costs are increased in a method of additionally mounting a special line fault identification system, and the contradiction between efficiency improvement and cost reduction is incompatible.

The invention discloses a line obstacle elimination method and system. The method comprises the steps that an unmanned aerial plane obtains position information of an obstacle, and transmits the position information to a ground control device; the ground control device determines a microwave reflection path based on the position information and sends a position adjustment instruction and microwaves to the unmanned aerial vehicle based on the microwave reflection path; and the unmanned aerial vehicle arrives at the target position according to the position adjustment instruction and reflects the received microwaves to the obstacle so as to eliminate the obstacle. According to the invention, the technical effects that obstacles on a line can be eliminated without advanced power failure or manual trimming and cleaning, the operation and maintenance efficiency is improved, the operation and maintenance cost is reduced, the personal safety hazard of the operation and maintenance personnel is eliminated, the load loss is reduced, and the inconvenience of power utilization of users is reduced are achieved.

The invention provides a charging pile operation and maintenance method and device and a charging pile, the method is applied to a target charging pile comprising a short-range communication module, the target charging pile communicates with an external terminal through the short-range communication module, the method comprises the steps that instruction information sent by the external terminal is received, and the instruction information comprises a charging and discharging instruction and an upgrading instruction; determining an execution sequence of the charging and discharging instruction and the upgrading instruction based on upgrading information carried by the upgrading instruction; when the charging and discharging instruction is executed, the charging and discharging state of the target charging pile is controlled based on the charging and discharging instruction; when the upgrading instruction is executed, whether software version upgrading needs to be carried out on the target charging pile or not is judged according to latest version information carried in the upgrading instruction; if it is judged that software version upgrading needs to be carried out, an upgrading request is sent to an external terminal, an upgrading package sent by the external terminal is received, and software version upgrading is carried out on the target charging pile based on the upgrading package; the operation and maintenance cost of the charging pile can be effectively reduced, and the operation and maintenance quality of the charging pile is ensured.

The invention relates to a high-strength fire-resistant and weather-resistant steel plate/strip and a production method thereof. The steel plate/strip comprises the following chemical components in percent by weight: 0.02-0.06% of C, 0.1-0.55% of Si, 0.4-1.7% of Mn, less than or equal to 0.03% of P, less than or equal to 0.007% of S, 0.30-0.80% of Cr, 0.10-0.60% of Cu, 0.20-0.60% of Mo, 0.01-0.08%of Nb, 0.004-0.010% of N, less than or equal to 0.001% of Als, 0.007-0.020% of total oxygen [O]T and the balance Fe and inevitable impurities, wherein Mn/S is greater than 250; and Pcm is smaller than or equal to 0.27%. The production method comprises the following steps of: selectively adding micro-alloy elements such as Mo/Nb/Cr into steel, and controlling the alkalinity of slag, the type and melting point of inclusions in the steel, the content of free oxygen in molten steel and the content of acid-soluble aluminum Als; then casting a cast strip through double-roller thin strip continuouscasting, and then feeding the cast strip into an on-line rolling mill for hot rolling; and after rolling, cooling the strip steel in a gas atomization cooling mode, and finally coiling the strip steeldirectly into a steel coil.

The invention discloses an automatic operation and maintenance method and device based on Ignite, computer equipment and a storage medium, and relates to the distributed deployment technology of clouddeployment, the method comprises the following steps: receiving a total computing task list and local computing task information sent by a load balancing server; if the interval between the current system time and the previous heartbeat packet sending time is equal to the heartbeat detection period, receiving heartbeat packets sent by other Ignite nodes; comparing each heartbeat packet with the total calculation task list to obtain a name list of the target application instances which do not send the heartbeat packets so as to send the name list to a load balancing server; and if automatic response is not correspondingly performed according to heartbeat packets sent by other application instances in the automatic response period and the current network delay value exceeds the first network delay threshold, calling an automatic restart instruction to perform restart. The method realizes timely transfer of the processing task when a node fails, and can be used as a standby node of otherfailed nodes to continue to process the task, thereby realizing automatic operation and maintenance.

The invention discloses a street lamp type small cellular wireless access network intelligent control system based on cloud architecture. The street lamp type small cellular wireless access network intelligent control system comprises a forward transmission system based on a passive optical network and an intelligent street lamp control system, wherein the forward transmission system based on the passive optical network comprises a local device system, an optical distribution network and a roadside device system, the local device system comprises a baseband processing unit cell, an optical line terminal and a main control center, the roadside device system comprises an optical network unit and an auxiliary control center, the intelligent street lamp control system comprises a plurality of integrated street lamp type micro base stations and a roadside communication optical cable. The street lamp type small cellular wireless access network intelligent control system based on cloud architecture integrates the roadside base station with the intelligent street lamp, can effectively solve the challenges on multiple aspects caused by the fast development of the mobile internet to the operators, bring sustainable business and profit growth, can also realize intelligent street lamp switch and improve the utilization efficiency of green energy, so as to achieve the purpose of environmental protection.

The invention discloses a new energy vehicle charging station cloud management platform, which comprises an adaptation module, a cloud storage module and a control center. Through the platform, the data of a charging pile can be visually known, there is no need for regular patrol inspection by operation and maintenance personnel, At the same time, the automatic control of charging pile equipment can be realized, and the control time has obvious advantages under the condition of ensuring the consistent control effect, so that the system can guarantee the bit error rate required by the system, and at the same time, the communication transmission efficiency can be improved as much as possible, and the operation and maintenance cost per unit time can be greatly improved.

The invention discloses a fire-resistant and weather-resistant steel plate/strip and a production method thereof. The fire-resistant and weather-resistant steel plate/strip comprises, by weight, 0.02-0.06% of C, 0.1-0.55% of Si, 0.4-1.7% of Mn, less than or equal to 0.03% of P, less than or equal to 0.007% of S, 0.30-0.80% of Cr, 0.10-0.60% of Cu, 0.20-0.60% of Mo, 0.004-0.010% of N, less than 0.001% of Als, 0.007-0.020% of total oxygen [O]T and the balance Fe and other inevitable impurities; and besides, the Mn/S ratio is greater than 250, and the Pcm is less than or equal to 0.27%. The produced fire-resistant and weather-resistant steel plate/strip can ensure that the steel can keep a high strength level at a high temperature, and also can reduce the mass of a building, improve the safety of the building and reduce the construction cost; and meanwhile, by utilizing the technological characteristics of thin-strip continuous casting, a fine grain layer with a certain thickness can be naturally formed on the strip steel surface on the basis of the fire resistance of the produced fire-resistant and weather-resistant steel plate/strip, and therefore the product has weather resistance.

The invention discloses high-corrosion-resistance steel and a manufacturing method thereof. The high-corrosion-resistance steel is prepared from the chemical components in percentage by weight: 0.02-0.06% of C, 0.1-0.5% of Si, 0.4-1.7% of Mn, less than or equal to 0.02 % of P, 4.0-6.0% of Cr, 1.0-3.0% of Ni, less than or equal to 0.007% of S, 0.004-0.010 % of N, less than 0.001% of Als, 0.001-0.006% of B, greater than 250 of Mn/S, 0.007-0.020% of total oxygen [O]<T>, and the balance of Fe and inevitable impurities. Alloying elements such as Cr and Ni and an element B are selectively added intoplain carbon steel; the alkalinity of slag, the type and melting point of inclusions in steel, the content of free oxygen in molten steel and the content of acid-soluble aluminum Als are controlled in the smelting process; double-roller thin strip continuous casting is adopted for casting a cast strip, the cast strip directly enters a lower closed chamber with a non-oxidizing atmosphere and enters an online rolling mill for hot rolling under a closed condition, and strip steel is cooled in a gas atomization cooling mode after rolling.

The invention discloses a method for producing high-strength and high-corrosion-resistance steel through thin-strip continuous casting. The method comprises the following steps of a), performing smelting, wherein smelting is performed according to the following chemical components including, by weight, 0.02-0.06% of C, 0.1-0.5% of Si, 0.4-1.7% of Mn, less than or equal to 0.02% of P, 4.0-6.0% of Cr, 1.0-3.0% of Ni, less than or equal to 0.007% of S, 0.004-0.010% of N, less than 0.001% of Als, 0.007-0.020% of total oxygen [O]T and the balance Fe and inevitable impurities, meanwhile, the chemical components include one or two of 0.01-0.08% of Nb and 0.01-0.08% of V, and the Mn/S ratio is greater than 250; b), performing double-roller thin-strip continuous casting to obtain a cast strip; c),performing lower airtight protection, wherein the cast strip directly enters a lower airtight chamber after being discharged out of crystallization rollers, and non-oxidizing gas is introduced into the lower airtight chamber; d), performing online hot rolling, wherein the cast strip is fed to a rolling mill through pinch rolls in the lower airtight chamber to be rolled into strip steel; e) coolingthe strip steel by adopting a gas atomization cooling mode; and f) coiling the strip steel.

The invention discloses a three-phase imbalance adjustment method based on an intelligent phase-change switch. The method comprises the following steps of solving an abstracted switch state matrix anda three-phase current imbalance degree; generating a matrix corresponding to the phase sequence of the phase-change switch according to the number of switches in the power distribution area and the phase sequence corresponding to the phase-change switch; calculating the unbalance degree of the three-phase current according to the parameters acquired by the phase-change switch; establishing a model for the switching commutation frequency and the three-phase unbalance degree; establishing a target function of phase sequence adjustment based on the principle that the unbalance degree after adjustment is minimum and the adjustment frequency of the intelligent phase-change switch is minimum; solving the adjusted switch state matrix under the optimal condition; introducing a weight function toevaluate the commutation current and the action times of a single commutation switch in a period; and a feasible optimal commutation scheme being obtained after evaluation, and corresponding switch commutation being controlled. The method is advantaged in that the phase sequence can be continuously adjusted in real time, and a problem of three-phase imbalance is solved.

The invention relates to an FTU super capacitor backup capability detection system and method, the system comprises a shell, a voltmeter, an ammeter, a timer and a discharge resistor are arranged in the shell, one end of a switch is connected with one end of the voltmeter and one end of the ammeter, the other end of the ammeter is connected with one end of the timer, and the other end of the timer is connected with the other end of the voltmeter; the other end of the switch is connected with one end of the pluggable male-female plug, and the other end of the voltmeter is connected with the other end of the pluggable male-female plug; the two-end pluggable male and female plug is connected with the super capacitor; and the timer is used for recording the change values of the voltage and current values in different time periods in seconds. Complete test data can be quickly, efficiently, accurately and safely obtained, the super capacitor can be quickly judged, the risks of power loss of a distribution network automation FTU main control unit and a communication module and misoperation of a circuit breaker can be avoided, distribution network automation accidents are prevented, and the power grid distribution network automation operation and maintenance capacity is improved.