35results about How to "No additional cost required" patented technology

The invention discloses an on-line soft sensing method for the flow of inlet water of an ozonation contact reactor in a water plant. Aiming at the problem of failure to measure the flow of inlet water of an ozonation contact reactor in a water plant on line due to the restrictions of technological conditions, the invention provides a test method of an inlet water lift pump of an ozonation contactreactor permitted under the on-line working conditions. By obtaining the frequency-flow correspondence curve of the operation of the lift pump at the actual maximum working pump lift Hmax and the actual minimum working pump lift Hmin, a monitoring computer in a central control room generates the real-time frequency-flow correspondence curve at the current working pump lift Hreal based on the measured current working pump lift Hreal and the frequency-flow correspondence curve obtained by tests in the subsequent automatic control process of ozone dosage, and further obtains the real-time flow of the inlet water of the ozonation contact reactor by inquiring the curve to automatically obtain the real-time flow of the inlet water lift pump of the ozonation contact reactor. The invention has the advantages of practicability, reliability, no additional cost and wide applicability.

The invention discloses a method for simultaneously removing sulfur dioxide and nitrogen oxides in waste gas, and belongs to the technical field of biological method industrial waste gas purification. In the method, waste gas is passed into a synchronous desulfurization and denitrification packed tower to remove the waste gas. The packing of the synchronous desulfurization and denitrification packed tower is loaded with microbial flora for synchronous removal of sulfur dioxide and nitrogen oxides. The sulfur dioxide and nitrogen oxides in the waste gas are The molar concentration ratio of nitrogen oxides is (0.65-1.05):1. The inventive method is to SO 2 The average removal rate of NOx reaches 99%, and the average removal rate of NOx reaches 76%, which improves the simultaneous removal efficiency of desulfurization and denitrification, further reduces the concentration of sulfur dioxide or nitrogen oxides in the flue gas, and reduces the treatment cost. It is a clean, efficient and low-cost new reaction method, which is beneficial to popularization.

The invention discloses a vehicle alarm method, a vehicle-mounted device, a computer storage medium and a system. The vehicle alarm method is applied to a vehicle-mounted device, and the vehicle-mounted device includes an on-chip system, a micro control unit, a switch, a digital signal processing chip, and a power amplifier ; Wherein, the system-on-chip includes a large core, a micro-kernel, a first serial port and a second serial port, and the method includes: the micro-kernel starts when detecting that the control system running on the large core crashes, and passes the The micro control unit acquires vehicle state information in real time; when the microkernel determines that the vehicle fails according to the vehicle state information, it sends an alarm audio signal to the power amplifier through the digital signal processing chip, so that the power amplifier passes through the speaker in the vehicle Play the alarm audio signal. The vehicle alarm method, vehicle-mounted equipment, computer storage medium and system provided by the present invention can improve driving safety and user experience.

The invention relates to the technical field of refrigeration system maintenance. Aiming at the problem that whether the refrigerant charging amount is appropriate or not can not be conveniently judged when replenishing refrigerant, a method for judging the suitability of refrigerant charging amount is proposed, including: making supplementary refrigeration The refrigerant refrigeration system operates under the given charging operation conditions. When charging the refrigerant, the winding temperature of the compressor motor of the refrigeration system that needs to be supplemented with refrigerant is obtained in real time under the charging operation condition, and the winding temperature is recorded as the actual Winding temperature: According to the corresponding relationship between the preset operating conditions obtained in the pre-test and the winding temperature of the refrigeration system with the refrigerant amount equal to the target amount under the preset operating conditions, it can be concluded that the refrigerant amount is equal to the target amount of the refrigeration system under the charging operating condition The expected winding temperature is recorded as the expected winding temperature; judge whether the actual winding temperature matches the expected winding temperature, and if so, the refrigerant charge is appropriate. The invention is suitable for charging monitoring of refrigerant in a refrigeration system.

The invention discloses a civil aircraft APU performance evaluation and fault early warning method, and relates to the technical field of equipment state monitoring. On the basis of aircraft QAR data, the present invention uses machine learning technology to dig out the health state model of important parameters in the APU; then subtracts the predicted value of the health state model from the actual measured value of the APU state parameter to obtain the deviation value of the state parameter; then The deviation values ​​of several key parameters are fused into a health index using the regression model to characterize the severity of APU performance degradation, and a fault warning is issued in time according to the set warning value. The present invention is applied to civil aircraft APUs, especially for APUs that fail due to performance degradation. Events are planned to be issued; at the same time, the data for performance evaluation comes from the existing civil aircraft QAR data, which has strong practicability and operability.

The invention discloses a method for avoiding service damage caused by revocation of multiplexing section switching, and solves the problem that the multiplexing section switching is immediately cancelled when the optical processing unit is unplugged, plugged in, powered on and re-operating, which will damage the service. Use the '100' reserved in the lower three bits of the K2 byte in the SDH frame structure in Recommendation G.841 as signaling to transmit the plug-in action information of the upstream optical processing unit to the downstream optical processing unit, and cooperate to complete the protection switching of the multiplex section , to avoid the damage to the service caused by the cancellation of the multiplex section switching. The present invention is very simple to implement and does not need to add extra cost. It can also be extended to the case of plugging and unplugging of other processing units participating in the protection switching of the multiplex section.

The invention discloses a method and device for preventing deadlock of a distributed LACP receiving state machine. The method includes: during the operation port sending and receiving LACPDU messages, real-time monitoring of the deadlock status of the receiving state machine running on the line card of the operation port; If it is detected that the receiving state machine has entered a deadlock situation, then the current state of the receiving state machine is maintained; if it is detected that the receiving state machine has entered a deadlock situation, then the receiving state machine is changed from the current state to another state. a state. The invention solves the deadlock problem of the receiving state machine under certain abnormal conditions by changing the LACP_DISABLED state transition of the receiving state machine of the LACP protocol, and enhances the self-recovery ability of the LACP.

The invention discloses a chip select signal spreading method, which comprises the following steps: selecting a free address space of a system; inputting a signal; performing operation according to a chip select signal spreading algorithm rule; and enabling related peripheral equipment according to the chip select signal. On the basis of not changing a hardcore of the system, the free address space can be used, chip select signals of new hardware are spread besides previous chip select signals of the system, and the peripheral equipment connected with the system previously cannot be influenced. By using the free address space, existing resources can be effectively utilized, and additional cost is not required to be increased. The chip select signal spreading method has strong practicability, hardly increases additional load for the system, can be applied to the field of control signal generation and transmission and is suitable for various baseband chips.

The invention discloses a TC-SAW IDT copper process manufacturing method, the steps of which are: forming a first dielectric layer on a piezoelectric substrate, and forming a first dielectric layer on the first dielectric layer through positive photoresist exposure and dry etching IDT graphic morphology, depositing the IDT metal layer, and then using the CMP process to grind the IDT metal layer to form a corresponding IDT metal structure, and then depositing the second dielectric layer. The present invention can effectively realize metal patterning and control of IDT metal morphology through positive photoresist combined with dry etching and CMP process, meet the requirements of smaller line width IDT electrodes, make the target frequency easier to achieve, and the process is simple , strong controllability, greatly reducing the cost.