43results about How to "No changes involved" patented technology

The invention discloses a method and device for achieving a push notification of an extensive application program. The extensive application program is the application program which needs to be installed in the environment where program installation limits applied by an operation system has been overcome by system privileges. The method comprises the steps that an identification list of application programs, with push notifications registered, on the operation system is intercepted, and the identification of the extensive application program is added into the identification list; push notification parameters related to the extensive application program are set; an application program push state interface of the operation system is obtained, and the identification and the push notification parameters of the extensive application program are read; according to the read identification and push notification parameters of the extensive application program, a push notification related to the extensive application program is displayed on a terminal. According to the method and device for achieving the push notification of the extensive application program, the extensive application program is added into the application program identification list with the push function, and the push parameters related to the extensive application program are set, and the push notification function is achieved on the jailbroken extensive application program.

The invention provides an estimating method and device for the pure-electric-vehicle motor output torque and an electric vehicle, and relates to the technical field of vehicle control. The estimating method includes the steps that according to preset sampling periods, three-phase currents of a motor, current inclination angles of the three-phase currents in an alpha-beta coordinate system, three-phase voltages and voltage inclination angles of the three-phase voltages in the alpha-beta coordinate system are periodically obtained; according to the current inclination angle and the voltage inclination angle which are obtained in a current sampling period, the rotating speed of the motor in the current sampling period is estimated; according to the three-phase current, the three-phase voltage, the current inclination angle and the voltage inclination angle which are obtained in the current sampling period, a reliability value of the current sampling period is obtained; according to the rotating speeds and the reliability values of all the sampling periods and preset control periods, the rotating speed of the motor in a current control period is estimated; according to the rotating speed of the motor in the current control period, the current output torque of the motor is obtained. The estimating method for the motor output torque is reliable, effective and high in accuracy, and has the good popularization value.

The present invention proposes an interworking method of calling each other at the same time by subscribers in an IMS communication system. The method comprises following steps that if the system detects a subscriber in calling and called subscribers opens a calling conflict service and the calling and called subscribers call each other at the same time, one path in two independent callings initiated by the calling and called subscribers is removed according to a calling conflict handling strategy, and the other path of calling is connected. According to the method, the problem of a calling failure when two subscribers call the other side at the same time is solved based on the service realization of the IMS, the involved net elements of the IMS are few, and the method is realized purely in a service way and is not does not involve hardware changes.

The invention discloses a detection method for selfish mining behaviors on a workproof mechanism block chain. The detection method comprises the following specific steps: S1, monitoring the situationthat each miner publishes a block in the block chain; S2, when a suspicious block is monitored, respectively calculating the values of Sstate, Fstate and Hstate; S3, judging a size relationship amongthe values of the Sstate, the Fstate and the Hstate: if the Hstate is less than the Sstate or the Fstate is less than 0, determining that the monitored suspicious block is published by a selfish miner; S4, if the condition in S3 does not exist, calculating Asize/n and p, and if Asize/n is less than p, enabling the regional block to refuse to monitor the suspicious block, otherwise, enabling the regional block to receive the monitored suspicious block. According to the method, selfish mining behaviors in the block chain can be discovered directly through existing public information, the changeof a block chain difficulty adjustment scheme is not involved, and the income of honest miners is not influenced.

The invention discloses a permanent magnet synchronous motor demagnetization fault detection method and device, and an automobile. The method comprises the steps of acquiring the state of a motor; when the motor state is a steady state, obtaining a first torque estimation value output under the steady state condition of the motor, and calculating steady state deviation delta E according to the first torque estimation value; when the motor state is a transient state, obtaining a second torque estimation value output under the motor transient state condition, and calculating a transient characteristic evaluation parameter Es according to the second torque estimation value; and judging whether the motor has a demagnetization fault according to the steady-state deviation delta E and the transient characteristic evaluation parameter Es. The permanent magnet synchronous motor demagnetization fault detection method realizes fault detection when a motor permanent magnet demagnetization fault,especially when the motor permanent magnet demagnetization fault does not reach a severe demagnetization state, is clear in thought, clear in detection mechanism, small in required calculation amountand easy for engineering realization, does not involve change of system hardware, does not increase system cost. Therefore, the method has good popularization value.

Provided is a three-level inside and outside tube voltage sharing control method for a three-level inverter. The method aims at a diode clamp type three-level inverter circuit. The method is characterized in that in the process of generating driving signals of a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, when switching of the switch tubes from 0,0,1,1 to 1,1,0,0 and switching from 1,1,0,0 to 0,0,1,1 are recognized, a section of transition signals is inserted into the driving signals of the first switch tube, the second switch tube, the third switch tube and the fourth switch tube forcedly and respectively. The corresponding states of the transition signals are that the first switch tube is disconnected, the second switch tube is connected, the third switch tube is connected and the fourth switch tube is disconnected, namely 0,1,1,0. By means of the method, the problem that inside and outside tubes of a zero crossing point of the diode clamp type three-level inverter circuit do not share voltage is well solved.

The invention provides a permanent magnet synchronous motor output torque estimation method and system, and relates to the technical field of automobiles. The method comprises the steps of obtaining motor parameters when a permanent magnet synchronous motor is in a predefined low-rotating-speed working condition; inputting the motor parameters and the current torque command into a pre-trained radial basis function (RBF) neural network to obtain an output torque; and performing Kalman filtering on the output torque to obtain a corrected output torque. According to the invention, the nonlinear relationship between motor parameters and output torque is solved by introducing an RBF neural network while a method for obtaining training data is provided, so that the calculation precision of the neural network is ensured, and Kalman filtering is introduced to process the output torque so as to further improve the precision; and the scheme does not involve the change of system hardware, so thatthe system cost is not increased.

The invention discloses a multi-optical-port communication method, device and equipment, and a storage medium. The method comprises the steps of pre-configuring Vlan IDs of a plurality of optical ports; and when a data packet transmitted from a certain optical port is obtained, transmitting the data packet to a corresponding application layer according to the Vlan ID corresponding to the optical port. Through the identifier Vlan ID corresponding to the optical port, the data packet can be different from data packets transmitted from other optical ports, and because the frequency bands of signals transmitted from different optical ports are different, the application layers of the data packets transmitted from different optical ports needing information interaction are different. The data packet can be transmitted to an application layer corresponding to the optical port for information interaction through the unique Vlan ID. According to the method provided by the invention, multi-optical-port communication is realized through the mapping relationship between the pre-configured Vlan ID and the optical ports, any opposite end or next-level unit/equipment does not need to be configured or modified, and the MAC address of any unit/equipment is not changed in the whole transmission process of the data packet, so that the problem of MAC address conflict is avoided.

The invention provides a power-on control method and device for a low-voltage storage battery of an electric automobile and the electric automobile, and relates to the field of power-on processing ofthe low-voltage storage battery of the electric automobile. The power-on control method for the low-voltage storage battery of the electric automobile comprises the steps: obtaining a performance reduction judgment result of a previous power-on period of a current power-on period of the low-voltage storage battery and the awakening frequency Ni of a controller in the power-on process of the low-voltage storage battery; determining a low-voltage power-on mode of the current power-on period of the low-voltage storage battery according to the performance reduction judgment result and the wake-upfrequency Ni; and obtaining a performance reduction judgment result of the low-voltage storage battery in the current power-on period when the low-voltage storage battery is powered on according to the low-voltage power-on mode and the awakening frequency of the controller. According to the embodiment of the invention, the stability and stationarity of the output voltage in the power-on process ofthe low-voltage storage battery are ensured by detecting the performance degradation of the storage battery and awakening the controller by stages, and the driving feeling is ensured.

The invention discloses a method for recovering the ACL link between a Bluetooth telephone gateway and an extension. By adopting the method/system, the large-extent decrease of the standby duration of the extension due to the processing of recovering the ACL link can be effectively avoided. The system of the invention comprises a gateway and the extension; wherein, the gateway is used for searching for the off-line extension when the extension is disconnected and sending a login request to the off-line extension when the off-line extension is found, so as to complete the registration of the extension; the extension is used for completing the registration process cooperating with the gateway when being found by the gateway after the extension is off line. In the method of the invention, four timers are adopted to manage the method flow; wherein, a cycle timer is used for the cycle management of the whole flow, a searching timer is used for controlling the searching time, a connecting timer is used for controlling the single connection between the gateway and the extension and a dormancy timer is used for the processing in case of failure in connection. The invention requires no change of the hardware, which has the advantage of universality and the meaning of popularization.

The embodiment of the invention discloses a color printing business processing method comprising the steps that color printing business is triggered at the terminal of a calling user or the terminal of a called user, and the terminal of the calling user initiates calling and then acquires the Invite request initiated by a calling side serving-call session control function (S-CSCF) or media gateway control function (MGCF) to the called side S-CSCF; and the home region of the terminal of the calling user is determined based on the initiated Invite request. The embodiment of the invention also discloses a color printing business processing device.

The invention discloses a high-voltage interlocking fault detection method and device and an automobile. The method comprises the steps of acquiring a first voltage signal through a first port of a high-voltage interlocking fault detection circuit, and acquiring a second voltage signal through a second port; filtering the first voltage signal to obtain a first filtering signal, and filtering the second voltage signal to obtain a second filtering signal; calculating a first fluctuation parameter according to the first filtering signal, and calculating a second fluctuation parameter according tothe second filtering signal; determining a first fault judgment threshold value according to the first fluctuation parameter, and determining a second fault judgment threshold value according to thesecond fluctuation parameter; performing high-voltage interlocking fault detection and judgment on the first port according to the first fault judgment threshold, and performing high-voltage interlocking fault detection and judgment on the second port according to the second fault judgment threshold; and if the first port has the high-voltage interlocking fault and/or the second port has the high-voltage interlocking fault, judging that the vehicle has a high-voltage interlocking fault. According to the invention, the problem of fault false alarm caused by electromagnetic interference is solved.