82 results about "Signal validation" patented technology

The invention provides an optical cable fault positioning method based on OTDR signal characteristic adaptive denoising and event identification, and the method comprises the steps: classifying modal components after OTDR signal adaptive noise decomposition based on a preset entropy threshold value, and obtaining a noise dominant component, a mixed component and a signal dominant component; singular value difference spectrum abrupt change point detection is carried out on the noise dominant component, and residual useful signals are extracted; verifying the entropy value of the mixed component, and reconstructing the component meeting the entropy threshold value, the signal dominant component and the residual useful signal into a de-noised signal; synchronously optimizing hyper-parameters and feature selection subsets of the support vector machine by adopting a swarm intelligence algorithm, wherein search parameters of the algorithm are dynamically updated according to an exponential decay mechanism; and outputting fault point space position information based on the optimized support vector machine model.

The invention provides a single-line communication method and device based on pulse counting, electronic equipment and a medium, and relates to the technical field of switches and servers. The method is executed by a main board in a system, the main board is connected with a sub-board through a single in-place signal line, and the method specifically comprises the following steps: within a first preset time period after the system is powered on, sending a first pulse sequence through the single in-place signal line, and verifying the connection state of a cable based on a received response signal; if the connection state is verified to be normal, sending a second pulse sequence through a single in-place signal line, and performing data communication with the daughter board; wherein the second pulse sequence forms communication bytes in a pulse number coding mode. According to the invention, an in-place signal line which is only used for static level detection traditionally is transformed into a dynamic multifunctional channel, so that the dual defects of low communication efficiency and high misplugging risk of a traditional scheme are synchronously overcome on the premise of not increasing any hardware cost and wiring complexity.

Systems and methods are disclosed comprising instructions to access audio data of a captured interaction involving one or more participating users of a digital conference tool, receive a first narrative summary of the captured interaction comprising a set of first component narratives, generate a second narrative summary comprising a set of second component narratives, identify at least one component narrative among the set of second component narratives corresponding to the participating users, display the second component narratives of the second narrative summary at a user interface of the participating users, receive user feedback data comprising an adjustment to the displayed text content of the at least one second component narrative, generate a third narrative summary using the user feedback data received from each participating user of the captured interaction, and display the third narrative summary for the captured interaction at the user interface of each participating user.

The invention relates to the technical field of very large scale integrated circuit design verification, and discloses a hierarchical cross-clock domain signal verification method, device and equipment and a medium. According to the method, on the basis of the physical layout information file corresponding to each functional module, the target functional module to be verified is dynamically, intelligently and accurately determined from the plurality of functional modules. And performing cross-clock domain signal verification on the previous level of the target function module by extracting the target sign-off abstract model of the target function module, and performing cross-clock domain signal verification on the top system of the whole chip by analogy. As clock domain crossing signal verification does not need to be carried out on all functional modules, the efficiency of chip verification can be improved, clock domain crossing signal verification, module level focusing functional module internal logic integrity verification and top layer enhanced module crossing asynchronous path analysis are carried out on the chip layer by layer through the target sign-off abstract model, and the chip verification efficiency is improved. Therefore, the accuracy of chip verification can be improved.

The invention provides a two-stage dynamic regulation induced draft fan transformation control method and system, and the method comprises the steps: traversing an existing I / O channel of a DCS system, and recognizing an idle channel which is not referenced by logic and can be accessed by a physical terminal; based on idle channels, dynamically allocating the idle channels to newly-added fan monitoring points according to priorities, and generating a channel multiplexing mapping table; based on the channel mapping table, constructing a basic control layer comprising a fan start-stop and rotating speed adjusting loop; the safety protection layer is used for receiving data of the basic control layer in real time and generating hard protection logic of stall interlocking, vibration protection and oil station faults; constructing a collaborative optimization layer according to a safety protection layer state and a boiler load, and dynamically calculating a two-stage moving blade opening collaborative strategy; executing a moving blade opening instruction in the collaborative strategy through the basic control layer channel; based on the moving blade opening instruction, the response consistency of the safety protection layer and the collaborative optimization layer is verified by injecting the simulation fault signal, and the operation stability and reliability of the two-stage dynamic regulation induced draft fan control system are effectively improved.

The invention discloses a vehicle control software function failure analysis method and related equipment, and relates to the technical field of Internet of Vehicles, and the method comprises the steps: obtaining operation log data corresponding to a target function failure event; based on a preset mapping model, determining a target signal identifier and a fault judgment rule associated with the target function failure event; according to the target signal identifier, extracting a signal sequence in a preset time window from the running log data; performing multi-stage verification on the signal sequence to obtain a signal verification result; and determining the fault type of the target function failure event based on the fault judgment rule and the signal verification result. According to the method, the mapping model is constructed, the signal sequence is extracted through the dynamic time window, hierarchical diagnosis is performed in combination with a progressive multi-stage verification mechanism, faults of an application layer, a communication layer and a hardware layer are accurately positioned, and the vehicle control function failure diagnosis efficiency and accuracy are improved.

The invention belongs to the field of smart power grids, and discloses a new energy efficient scheduling method and system based on a smart power grid. Comprising the steps of embedding diamond NV color center microsensors to form a networked array, collecting and outputting original data in real time, extracting auxiliary environment variables for correction, generating weight vectors, adjusting a fluorescence intensity sequence layer by layer, extracting projection values for iterative optimization, and outputting a harmonic phase matrix. Decomposing a harmonic phase matrix, extracting coupling path characteristics, calculating entanglement entropy, simulating storm evolution and outputting an alarm packet if the entanglement entropy exceeds a threshold value, otherwise, continuing circulation; reconstructing a topological structure based on the alarm packet, injecting a chaos inversion signal, verifying stability and outputting a configuration abstract; and receiving a configuration abstract to operate the pulse neural network, generating an instruction based on an optical topology scheduling strategy, encrypting a distribution instruction, releasing a compensation limit and completing execution, thereby realizing new energy efficient scheduling based on the smart power grid.

The invention provides an assertion-based clock reset verification method, device and equipment and a storage medium, relates to the technical field of signal verification, is applied to a digital circuit, and comprises the following steps: obtaining an input signal generated by an excitation source; the input signal comprises at least one of a clock signal and a reset signal; determining an assertion execution sequence based on the input signal and a preset assertion priority; performing signal verification on the input signal based on a preset assertion statement according to the assertion execution sequence; wherein the assertion statements comprise a clock signal frequency assertion statement, a clock signal duty ratio assertion statement, a clock signal jitter assertion statement, a reset signal validity assertion statement and a reset signal release assertion statement. In the mode, the requirement of a modern complex digital circuit on efficient and accurate verification of the clock signal and the reset signal is met.

The invention relates to the technical field of intelligent power electronics, and provides an intelligent switching-off mechanism for overload protection of a distribution box, and the mechanism comprises a current monitoring unit which is used for collecting a current signal of a main loop of the distribution box in real time, and calculating an effective current value; the temperature sensor unit is arranged in the distribution box and used for monitoring the environment temperature and the conductor temperature rise; the main control module is connected with the current monitoring unit and the temperature sensor unit, and is configured to judge whether to trigger opening according to the effective current value and the conductor temperature rise; and the double-signal verification unit comprises a 485 communication module and a hardware trigger circuit, and the opening action is allowed only when the opening instruction and the remote control signal of the main control module are received at the same time. By introducing a temperature compensation coefficient alpha and a self-adaptive algorithm, the opening threshold dynamically changes along with the environment temperature, the threshold is automatically reduced in a high-temperature environment, hidden overload caused by rising of conductor resistance is avoided, and a test shows that the misoperation rate is reduced by 67%.

The present invention discloses a signal verification method, device, processor, and electronic device for a substation. The method includes: obtaining a configuration file of the substation, where the configuration file is at least used to record the association relationships between devices in the substation; determining the signal status of an event signal of a device based on the configuration file, where the event signal is an electrical signal corresponding to an event occurring in the device; in response to the signal status being a normal signal status, respectively verifying a target relationship library and a current relationship library of the device based on a switch in the substation to obtain a verification result; in response to the verification result indicating that the target relationship library is different from the current relationship library, uploading abnormal information in the current relationship library to the cloud, where the abnormal information is used to record the communication relationship that is different from the target communication relationship in the current communication relationship. The present invention solves the technical problem of low efficiency in signal verification of the substation.

The present invention relates to a logic simulation verification system, method, and program. The same logic simulation results are provided to each logic simulator in a short time. The logic simulation verification system verifies the change of signals described in a library, a circuit description, and a test bench for a reference signal that is a basis for the change of signals, and includes: a change timing specifying unit that specifies a reference signal and change information of the reference signal; a change possibility time calculation unit that obtains a first time when there is a possibility that a first signal substituted for a variable changes; a reference possibility time calculation unit that obtains a second time when there is a possibility that a second signal to which the variable is referred is referred; a change possibility time determination unit that compares the first times when the first signals are the same between different circuits to determine whether the first times are consistent; and a change and reference possibility time determination unit that determines whether the first signal of one party and the second signal of the other party are the same between different circuits and the first time and the second time are consistent.

The invention discloses a high-precision time-frequency signal transmission and measurement system. The system comprises multiple groups of Beidou signal receiving modules, signal analysis and processing modules, time-frequency signal extraction modules, time-frequency signal verification modules and processed signal transmission modules, wherein the Beidou signal receiving modules, the signal analysis and processing modules, the time-frequency signal extraction modules, the time-frequency signal verification modules and the processed signal transmission modules are arranged; the Beidou signal receiving module receives a time service signal and a time frequency signal of a Beidou satellite, the signal analyzing and processing module enhances the quality of the received signal, and the time frequency signal extracting module extracts time information and frequency information from the enhanced Beidou signal; the time frequency signal verification module measures the extracted time information and frequency information, and the processed signal transmission module transmits the processed Beidou time information and frequency information to user equipment and comprises a programmable digital signal processor and a filter. Compared with the prior art, the high-precision time-frequency signal transmission measurement method and system provided by the invention have the advantages of being convenient to operate and use and ensuring the use precision.

The invention discloses a Bluetooth car key communication method and system for heterogeneous equipment, and relates to the field of communication, and the method comprises the steps: configuring a vehicle-mounted switching box as a fixed host role, configuring an intelligent key and terminal equipment as fixed slave roles, judging the current equipment life cycle stage of the intelligent key, and sending the current equipment life cycle stage to a server; when the intelligent key is in a pairing stage or a firmware upgrading stage, controlling the intelligent key to send a discoverable broadcast signal in a non-directional broadcast mode; when the intelligent key completes pairing and enters a daily use stage, switching a broadcast mode of the intelligent key into a directional white list broadcast mode, controlling the intelligent key to send a directional broadcast signal to a vehicle-mounted switching box in a pre-stored authorized equipment white list, controlling the vehicle-mounted switching box to scan and receive the directional broadcast signal, and sending the directional broadcast signal to the vehicle-mounted switching box; and after the authentication code is verified, the vehicle-mounted switching box actively initiates connection with the intelligent key. By implementing the method, scanning conflicts caused by the fact that the intelligent key and the mobile phone serve as hosts at the same time in the Bluetooth car key system can be reduced.

The invention relates to the field of intelligent driving, in particular to a signal verification method, device and equipment and a storage medium, and aims to realize accurate cross-core synchronization of Ethernet signal verification results. The method comprises the following steps: acquiring a thread lock corresponding to a shared resource through a first software layer; under the condition that the thread lock is successfully acquired, the Ethernet signal verification result of the vehicle is written into the shared resource through the first software layer; under the condition of successful writing, releasing the thread lock through the first software layer; obtaining the thread lock through a second software layer; under the condition that the second software layer obtains the thread lock, the Ethernet signal verification result is read through the second software layer; and through the second software layer, according to the Ethernet signal verification result, determining whether the vehicle has a functional abnormality or not.

The invention relates to a validity verification method and device based on a dual-core lockstep mechanism, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring fault injection configuration parameters for performing electromagnetic fault injection; the fault injection configuration parameters comprise fault generation parameters, and the fault injection configuration parameters indicate to-be-verified functions; a verification instruction corresponding to the to-be-verified function is sent to a chip with a dual-core lockstep processor, so that the chip is switched to a test program corresponding to the to-be-verified function; electromagnetic interference is injected into the chip based on the fault generation parameters so as to trigger a dual-core lockstep processor of the chip to break down; and when the to-be-verified function is a fault detection function, obtaining a fault detection state and a fault output signal output by the chip, and verifying the validity of the fault detection function according to the fault detection state and the fault output signal. By adopting the method, the reliability of a verification result of validity verification based on dual-core overlock can be improved.

A secure boot method of an Internet of Things (IoT) apparatus includes: in response to a system boot signal of the IoT apparatus, verifying an authentication signature of a bootloader firmware and an authentication signature of an application layer (App) firmware; reading an encryption key stored in a one-time programmable memory in response to determining that the authentication signature of the bootloader firmware and the authentication signature of the App firmware both pass verification, in which the encryption key is configured to have a write protection attribute; decrypting the App firmware according to the encryption key, and running the decrypted App firmware; and in response to determining to read encrypted flash-memory partition data in a flash memory (Flash), decrypting the encrypted flash-memory partition data according to the encryption key, so as to securely boot up the IoT apparatus.

According to an embodiment of the present invention, a hybrid communication control device for charging an electric bus comprises: a pantograph communication unit which processes a first communication sequence so that charging power is supplied from a pantograph charger to a battery mounted on the electric bus; a wired charging communication unit for processing a second communication sequence so that charging power is supplied from a wired charger to the battery; a Wi-Fi signal reception unit which is connected to a Wi-Fi module mounted on the electric bus through wireless communication and receives a wireless signal from the Wi-Fi module; and a Wi-Fi signal verification unit which is connected to the pantograph communication unit, the wired charging communication unit, and the Wi-Fi signal reception unit over a wired / wireless network and drives any one of the pantograph communication unit or the wired charging communication unit according to the reception strength of the wireless signal.

The invention relates to the technical field of electronic design automation, in particular to an analog signal verification method for digital-analog hybrid simulation, which comprises the following steps: identifying a plurality of verification nodes in an analog module to be tested; configuring an analog-to-digital conversion threshold parameter for the verification node; in a simulation process, monitoring an analog signal value on the verification node in real time, and converting the analog signal value into a digital logic value according to an analog-to-digital conversion threshold parameter; transmitting the digital logic value to a digital verification platform through an emulator interface; the digital verification platform applies the digital logic value to a digital shadow model corresponding to the tested analog module interface; function coverage collection and assertion check are performed based on the signals of the digital shadow model. According to the method, the problem that analog signals cannot be effectively verified through traditional digital-analog hybrid simulation is solved, verification completeness is remarkably improved, design errors can be automatically found in the early stage, existing digital verification platform resources are fully reused, and verification efficiency and reliability of a mixed signal chip are greatly improved.

A pet entry system and process including determining if a sensor or button has been triggered or activated; activating or waking at least one processor if at least one sensor or button has been triggered or activated; scanning for a wireless key signal; receiving a wireless key signal from a tag; validating or authenticating the wireless key signal received from the tag; evaluating a distance of the tag to the wireless key receiver if the received wireless key signal is valid; confirming if the distance of the tag is within a predetermined distance or proximity range and the wireless key signal is valid; sending a door open to a door controller if the tag is within the predetermined distance or proximity range; and ending the scanning for wireless key signal.

The application relates to a Bluetooth car key communication method and system for heterogeneous devices, and relates to the field of communication.The method comprises the following steps: configuring a vehicle-mounted adapter box as a fixed host role and configuring a smart key and a terminal device as fixed slave roles; judging a device life cycle stage in which the smart key is currently located; when the smart key is in a pairing stage or a firmware upgrading stage, controlling the smart key to send a discoverable broadcast signal in a non-directional broadcast mode; when the smart key completes pairing and enters a daily use stage, switching a broadcast mode of the smart key into a directional whitelist broadcast mode, controlling the smart key to send a directional broadcast signal to a vehicle-mounted adapter box in an authorized device whitelist which is stored in advance, controlling the vehicle-mounted adapter box to scan and receive the directional broadcast signal, and initiating a connection with the smart key by the vehicle-mounted adapter box after verifying an authentication code. By implementing the method, scanning conflicts caused by the smart key and a mobile phone simultaneously serving as hosts in a Bluetooth car key system can be reduced.

A replacement storefront door lock with no drilling is provided. The replacement storefront door lock with no drilling includes an outdoor component; an indoor component; a mortise including a housing, a bolt and a drive shift, the bolt movably disposed in the housing; a tailpiece; and an electronic assembly including a main circuit board, a motor located in the indoor component and a command-signal verification element located on the outdoor component. The motor and the command-signal verification element are electrically connected to the main circuit board. A conductor connected to the main circuit board passes through a wire hole of the housing to transmit electronic signal. The replacement storefront door lock with no drilling in this application can replace old lock without drilling new holes; with the conductors, the replacement storefront door lock with no drilling can be a smart lock.

Methods and systems are disclosed for migrating a confidential virtual machine (CVM) to a remote computer system. A method that is implemented in a virtualized firmware layer of a CVM involves receiving a migration signal from an orchestration component at a host partition, validating the security state of the remote system, and upon validation, removing a first secret from the virtualized firmware layer. The guest state file associated with the CVM is encrypted using a second secret from the remote system, capturing the state of the firmware layer. Subsequently, the CVM migration is initiated by transmitting the encrypted guest state file to the remote system, ensuring a secure and confidential transfer of the CVM to the designated destination.

The invention discloses a dry quenching flue gas desulfurization system abnormity judgment and disposal method. The method comprises an abnormity judgment stage, an emergency disposal stage and a system recovery stage. According to the method, the rapid abnormity judgment is realized by monitoring the pressure change gradient of the pre-storage chamber, the current fluctuation of the desulfurization fan and the interlocking shutdown signal verification in real time; differentiated emergency disposal strategies are adopted according to characteristics of different areas; and rapid system recovery is realized through soft start control and parameter recovery optimization control. The method has the advantages of short fault response time, high pressure control precision, short system recovery time, low energy consumption and the like, and is suitable for a dry quenching process desulfurization system.

The utility model provides a testing device of a train traction controller. The testing device can simulate various signal interfaces such as 14-path digital output, 26-path digital input, 4-path train speed signal, 6-path analog signal input, IGBT feedback signal and the like. The test device accurately simulates the working environment of the traction controller through the square wave signal output circuit, the first voltage conversion circuit, the second voltage conversion circuit and other modules, and realizes comprehensive detection of the controller. The method specifically comprises the steps that train speed signals are simulated through a PWM controller, stable voltage signals are provided through a voltage stabilizer, analog input signals are adjusted through a switch and a resistor, and it is ensured that various input and output signals of a traction controller can be accurately responded. According to the device, various functions of the traction controller are verified by simulating input signals under different working conditions, the mode of relying on field loading in the traditional testing process is avoided, and the testing time and cost are reduced.

The invention provides an intelligent monitoring system and method for an attacking behavior of an inpatient, and relates to the technical field of intelligent medical treatment, and the system comprises a clinical sign collection module which is configured to be used for obtaining a limb electrophysiological signal, a body pressure distribution signal and a related acoustic signal of the patient in real time; the clinical behavior decision-making module comprises a body position self-adaption unit and a cross-modal verification unit; the body position self-adaption unit is configured to be used for judging the body position action of a patient based on the body pressure distribution signal; the cross-modal verification unit is configured to be used for matching a corresponding signal collaborative verification rule according to the body position action of the patient so as to verify whether the body position action of the patient conforms to an attack behavior or not in combination with the limb electrophysiological signal and the related acoustic signal; and the clinical monitoring execution module is configured to trigger a positioning alarm signal to the medical care terminal when the body position action of the patient conforms to the attack behavior. According to the system, early, accurate and automatic early warning of unconscious attack / self-injury behaviors of patients with specific diseases during sleep is realized.

Techniques for centralized management of signal verification of protected data messages are described. A computer-implemented method, performed by a data processing device of a system comprising a plurality of nodes respectively connected to one another via a communication framework, can comprise executing a transmission relay process repeatedly at a defined execution frequency to control transmission of protected data messages between sender nodes of the plurality of nodes and respective receiver nodes of the plurality of nodes. The transmission relay process comprises reading data entries published by the sender nodes to a memory of the system, the data entries respectively comprising data content to be sent to the respective receiver nodes, generating the protected data messages respectively comprising the data content, and sending, via the communication framework, the protected data messages to the respective receiver nodes.

The invention discloses a fan master control PLC detection method, system and device and a medium, and belongs to the technical field of PLC detection, and the method comprises the following steps: building Ethernet communication connection between a test controller and a to-be-tested PLC; detecting manufacturer information, model information and communication protocol information of the to-be-tested PLC, and generating a test parameter configuration table according to an identification result; executing the function test of the to-be-tested PLC interface; performing fan control logic verification, and verifying the accuracy of a variable pitch control mechanism, a yaw control mechanism and a power control mechanism of the to-be-tested PLC by inputting a fan operation characteristic signal; and displaying an interface function test result and a control logic verification result on a human-computer interaction interface. According to the invention, interface function testing and fan control logic verification are organically combined to form an integrated detection system, the basic hardware function of the PLC can be verified, the control performance of the PLC can be evaluated in a real control environment, and deep integration of hardware detection and software verification is realized.

The invention discloses an end-to-end protection method, system and device for a system on chip, and a storage medium. The method comprises the following steps: a first sending end in the system on chip generates a first signal, obtains a corresponding first check code, and sends the first signal and the first check code to a first bus; the first bus receives the first signal and the first check code, and forwards the first signal and the first check code to a first receiving end in the system on chip under the condition that the first check code is verified to be correct according to the first signal; and the first receiving end receives the first signal and the first check code, and executes processing for the first signal under the condition that the first check code is verified to be correct according to the first signal. The scheme of the invention is a system-level end-to-end protection scheme based on the bus interface signal of the system-on-chip, the protection of a full data transmission path is realized, and the security and the error positioning accuracy of the system-on-chip are further improved.

A method for light detection and ranging that includes forming a first light pattern within a region of a scene by holographic projection. The first light pattern includes n light spots arranged in a regular array. A light return signal is received from each light detection element of an array of light detection elements directed at the region of the scene. The intensity of the light return signals is assessed. If the light return signals do not meet at least one signal validation criterion, a second light pattern is formed within the region of the scene by holographic projection. The second light pattern includes m light spots arranged in a regular array, wherein m≠n. A time-of-flight in association with each light spot of the second light pattern is then determined.

The invention provides a testing system and a testing method, and belongs to the technical field of testing. The test system comprises an upper computer, an IO board card and a real-time simulation device. The upper computer and the controller to be tested are connected through an IO board card, and the two ends of the real-time simulation device are connected with the upper computer and the controller to be tested respectively. The upper computer can read and traverse the test table line by line and obtain the first actual observed quantity and the second actual observed quantity of the tested signal, and if the first actual observed quantity and the second actual observed quantity are within the tolerance range allowed by the expected value of the first observed quantity and the expected value of the second observed quantity in the test table, the transmission of the tested signal is successful. The test system can carry out signal verification of two observed quantities on the same signal, and the robustness and safety of the controller software to be tested are enhanced. And meanwhile, automation of testing multiple points of each tested signal is realized, and the coverage degree and the testing efficiency of software testing are improved.