54results about How to "No hardware cost" patented technology

The invention discloses a method and a device for system login based on an autonomously generated password of a user. The method includes: based on at least one preset login rule which is autonomously defined by the user, dynamically generating the login password so as to verify the dynamic password of the user by providing random information. The method and the device solve the problem that a password is unreliable due to the fact that a random dynamic password always needs to be provided by technicians rather than the user in the prior art, such as verification codes and the like.

The invention discloses a cluster AP channel allocation and power adjustment method for a dense user area. Based on the existing channel allocation and power adjustment technology, channel allocation and power adjustment are integrated through ingenious design and are made to support each other and be matched with each other, and therefore a new technology scheme is formed. The method is applied to dense area wireless AP deployment, the purpose of dense user area cluster AP deployment which can not be achieved by a single channel allocation scheme or a single power adjustment scheme can be effectively achieved, the problem of mutual interference between wireless APs is solved to the maximum degree, the signal cover is guaranteed, the bandwidth availability ratio is improved, and the method is high in practicality value and popularization value.

The invention provides a method for pre-judging a fault battery in a power battery pack. The method includes the steps of: dividing fault pre-judging intervals, recording abnormal data, pre-judging the abnormal battery, restarting abnormal data recording, and circularly performing detection. The method for pre-judging the fault battery in the power battery pack can effectively pre-judge the single battery which may break down by performing real-time monitoring and statistic analysis on the charging and discharging states of the single battery in the power battery pack, timely finds out the single battery with the fault hidden trouble, and improves the usage security of the battery pack in the whole service life period of the battery pack. The method for pre-judging the fault battery in the power battery pack can be directly implemented by a BMS system connected to the battery pack without extra hardware cost.

The invention discloses a hardware framework for matrix inversion in large-scale MIMO linear detection. The hardware framework comprises a pre-computation module and a matrix inversion sub-module, wherein the pre-computation module comprises a lower triangular pulse multiplier, an adder, a conjugate transpose module, a reciprocal module, a negation module and a vector multiplier, the lower triangular pulse multiplier is respectively connected with the adder and the conjugate transpose module, the adder is connected with the vector multiplier through the reciprocal module and the negation module sequentially, the conjugate transpose module is connected with the vector multiplier, the matrix inversion sub-module is of an IIR filter structure, and the vector multiplier and the reciprocal module are respectively connected with the matrix inversion sub-module. The invention further provides a method for matrix inversion in large-scale MIMO linear detection. By the hardware framework and the method, computation complexity and hardware cost are lowered greatly, optional precision accuracy can be obtained by iterative computation, high flexibility is provided, extra hardware cost is avoided, and good compatibility is achieved.

The invention provides an optical fiber time delay compensation method suitable for a long term evolution (LTE) system. The optical fiber time delay compensation method suitable for the LTE system comprises the following steps: step A, conducting bit field processing to lower level sending signals; step B, conducting caching to the lower level sending signals in bit field; step C, conducting resource mapping to the cached lower level sending signals of the bit field, and transferring the lower level sending signals after resource mapping into frequency division multiplexing (OFDM) signs; step E, conducting middle radio frequency processing to the OFDM signs. The invention further provides an optical fiber time delay compensation device suitable for the LTE system.

The invention discloses a clustered intelligent gateway platform and a method thereby for deploying expanded business application, which solve the problem that the scheme for deploying expanded business application used by a conventional large-scale clustered gateway device is complicated in design, has low utility ratio and cannot be used for large-scale deployment. The clustered intelligent gateway platform comprises a converging central server, at least two access servers connected with the converging central server, at least a shunt server, a database server, and at least a gateway device connected with the access servers. The clustered intelligent gateway platform has a reasonable design, has low complexity, and can be used for deploying the large-scale clustered gateway device efficiently, rapidly and flexibly, thereby having high application value.

The invention discloses a terminal connection management mechanism applied onto a wireless repeater. The terminal connection management mechanism applied onto the wireless repeater includes steps: (S10) establishing a connection between a mobile terminal and the wireless repeater; (S20) arranging a timer on the wireless repeater; (S30) using the wireless repeater to scan the mobile terminal connected with the wireless repeater, and performing connection control on the mobile terminal based on signal intensity of the mobile terminal; (S40) judging whether the timer expires or not, and if yes, jumping to the step (S20) and resetting the timer, or if not, jumping to the step (S30). The terminal connection management mechanism applied onto the wireless repeater is based on the received signal intensity and data transmission rate of the mobile terminal, which are detected, actively controls the mobile terminal to connect with a main AP (access point) or the wireless repeater, performs efficient management in real time, enables the mobile terminal to dynamically switch between the main AP and the wireless repeater according to connection strength of the mobile terminal, keeps communication connection quality of the mobile terminal reliable, and enhances user experience.

The invention discloses low power consumption equipment, a keep-alive server and a message pushing method and system. The message pushing method comprises that in a dormancy state, whether an externalevent is triggered in detected, and if YES, a keep-alive link pushes an external event triggering message to the keep-alive server; and the keep-alive link is established between the low power consumption equipment and the keep-alive server in advance via network transmission protocols. Via the low power consumption equipment, keep-alive server and message pushing method and system, a detection message can be pushed from the lower power consumption equipment to a client within 1 second, the pushing accuracy of the detection message can reach 99.99%, hardware cost is not needed, the enforcement cost is low, and the user experience is improved greatly.

The present invention proposes a multi-point centralized anti-interference method and system based on spectrum situation integrated sensing. A wireless MESH network has three anti-interference technical problems in a complex electromagnetic environment, the problems are an isolated node problem in an MESH network with receiving channel blocking caused by a non-802.11 interference signal, a service interruption problem caused by channel scanning and an additional high cost frequency sweep hardware support problem in a traditional spectrum sensing method, due to the above three major problems, an existing MESH product is not suitable for a field complex electromagnetic environment working scene, the three problems become the technical bottleneck of MESH product development and promotion, and the three problems are completely solved by the method. The invention provides a multi-point centralized anti-interference technical scheme based on spectrum situation integrated sensing, the scheme is simple and practical and is easy to realize and implement without additional hardware cost, the comprehensive sensing ability of a spectrum state and the centralized spectrum analyzing and decision-making ability in the true sense of MESH equipment are realized and are successfully applied to the MESH equipment, and the performance of the MESH equipment is significantly improved in promotion and application.

The invention provides a man-machine interaction method and a device in a video monitoring and a video monitoring system. The device specifically comprises a database, a prompt module, a voice output module, a voice acquisition module and an interaction module, wherein the database comprises a location library and a template library; the prompt module is used for transmitting root-level location table voice data when a first presetting operation is received; the voice output module is used for outputting voice data; the voice acquisition module is used for acquiring voice data replied by a user according the output voice data; and the interaction module comprises a voice matching unit which is used for matching the voice data replied by the user with a user replied voice data template aiming at the voice data replied by the user and for obtaining the text of the successively matched user replied voice data template, a determining unit which is used for determining the text to be the option serial number of the current-level location table, and an interaction unit which is used for obtaining relevant voice data according to the recorded processing information of the option serial number and transmitting the voice data to the voice output module. The man-machine interaction method and the device in the video monitoring and the video monitoring system have the advantages that the user demands can be met and the restriction of a network can be get rid of at the same time.

The present invention relates to an on-line soft measurement method of pH value and H2SO3 concentration in polyacrylonitrile polymerization system under the sodium-chlorate-sodium bisulfite initiating system. It is characterized by that it utilizes the simulation experiment of NaClO3-NaHSO3 oxidation-reduction initiating system under the condition of operation in the course of acrylonitrile polymerization to make the obtained experiment result undergo the processes of mathematical regression and normalization treatment to obtain an integrated quantitative mathmatical expression formula of 5 operation variable quantities and pH value and H2SO3 concentration in said polymerization system: in which (ci, i=1,2,...4) and D (di, i=1,2,...4) are moded fitting parameter vector, lambda (lambda i, i=1,2,...4) and gamma (gamma i i=1,2,...4) are model fitting parameter matrix x is input vector, i.e. operation variable quantity, after calculation, the real time result of pH value and H2SO3 concentration in the acrylonitrile polymerization system can be obtained.

The invention discloses a data transmission strategy for improving wireless local area network throughput. The data transmission strategy for improving the wireless local area network throughput includes steps: (S10) setting timer time T, obtaining data transmission rates of all terminals, and accordingly figuring out average value V of the data transmission rates; (S20) setting corresponding time slices according to the data transmission rates of all the terminals; (S30) confirming corresponding quota value of data packages which can be sent in allusion to all the data transmission rates; (S40) transmitting the data packages according to the quota value of the data packages which can be sent. The data transmission strategy for improving the wireless local area network throughput ingeniously uses the time slices as measurement criterions under a multiple rate environment, sets the different time slices for the terminals of the different rates so as to regulate access time of the terminals, allocates a large number of the time slices for the terminal of the high rate, embodies advantages of the high rate, improves handling capacity of the terminal of the high rate on the premise of not improving network suddenness, and further improves the overall throughput of a network, is low in complexity and easy to implement, can not cause additional hardware costs, and has a wide application prospect.

The invention provides a steering maneuverability control method. The steering maneuverability is improved by using engine torque. According to the steering maneuverability control method, after a vehicle entering a set steering condition is detected, an engine torque control link is conducted, an expected torque request is found out and carried out according to a present directional rotary angleand throttle opening, and after the request is completed, natural torque is restored; and when one of following set situations occurs in the torque request detecting process, torque control is automatically terminated, and a next-time steering wheel angle monitoring program is carried out. According to the steering maneuverability control method, the engine torque is used for changing gravity center of the vehicle, the tendency of vehicle insufficient steering is further restrained or reduced, the fluency of driving in steering maneuver can be improved, and frequency of active steering wheel maneuver of a driver is actively reduced.

The invention discloses an FPGA + processor architecture-based information security system and a working method thereof. The system comprises an FPGA, a general processor and a memory, wherein the FPGA is interconnected with a processor and a FLASH; the memory is used for power-on configuration of the FPGA and storage of software programs, and the stored software comprises an encryption bootstrapprogram and an encryption application program; the FPGA is used for decrypting the encrypted bootstrap program stored in the memory, and is also used for generating a ciphertext for decrypting and encrypting the application program by the processor through the encryption software running the application program key; and the processor is used for running the bootstrap program decrypted by the FPGAand running the decrypted application program. According to the embodiment of the invention, the problem that core data and key application program codes are easy to steal due to lack of information security confidentiality measures in the existing embedded computer is solved.

The present invention relates to a static calculating code, a returning plain code, a static bit code, a dynamic bit code, a final key, a website server and a terminal device. The invention provides a dynamic bit code and a using method. The user terminal uses the static bit code and compares the effective code in the returning plain code for rearrangement to obtain a novel dynamic bit code. The dynamic bit code and the static calculating code are executed with calculation with same regulation to the server terminal. The calculated result is taken as the final code and is transmitted to the server terminal to check for checking the identity of the user terminal. The server terminal is established with an identification system which comprises a static calculating code, a return plain code, a static bit code, a dynamic bit code and a final key. The invention prevents that the illegal user steals the key. The invention is suitable for all ciphering product, logging-on system, wireless network checking system, bond system and other systems.

The invention provides an electric or hybrid vehicle battery pack voltage measurement. Systems and methods for measuring voltage of a battery pack for an electrified vehicle, such as an electric or hybrid vehicle, include measuring individual cell voltages and using the individual measurements to periodically update an adjustment or offset applied to the battery pack measurement to improve accuracy of the battery pack measurement. Individual cell voltage measurements may be periodically sampled and combined with the result compared to the pack voltage under predetermined operating conditions, such as when voltage changes or variation are small. A sliding window of voltage differences that satisfy one or more specified conditions, such as being within a range of a previously determined value, may be used to generate the adjustment or offset.

The invention discloses a material abandoning control method and device for sampling machines, a medium and equipment, belongs to the technical field of sampling, and aims at solving the technical problem that the train running is influenced as the abandoned materials are dispersed at the carriage clearances at present. The adopted technical scheme is that when a sampling machine is operated between two adjacent target sampling points and a material abandoning operation is carried out, real-time detection is carried out to judge whether the material abandoning port of the sampling machine is located at a carriage clearance position between the two adjacent target sampling points or not; and when the material abandoning port is located at the carriage clearance position, the material abandoning operation of the sampling machine is stopped. The adopted technical scheme has the advantages of being simple to operate and improving the train running safety and reliability.

The invention discloses an electric vehicle motor controller discharge circuit and a vehicle. The discharge circuit comprises a sampling circuit, a microprocessor and a discharge execution circuit; the sampling circuit and the discharge execution circuit are both connected in parallel with a bus of a motor controller; the output end of the sampling circuit is connected with the first input end ofthe microprocessor, and the output end of the microprocessor is connected with the input end of the discharge execution circuit; the sampling circuit is used for collecting a bus voltage value of themotor controller and transmitting the bus voltage value to the microprocessor; and the microprocessor is used for determining a discharge instruction and a duty ratio of the discharge instruction according to the bus voltage value and transmitting the discharge instruction to the discharge execution circuit, so the discharge execution circuit discharges when the discharge instruction is at a low level, and the discharge instruction is in a pulse width modulation form. According to the invention, the first resistor works in an intermittent discharge state, the power of the first resistor can bereduced, and the temperature rise rate of the first resistor is reduced.