33 results about "Real-time clock" patented technology

This utility model discloses a data processing board for trackside equipment, belonging to the technical field of subway trackside equipment. It includes a data processing module, a soft-start output module, a power-down voltage monitoring module, an RTC real-time clock module with a first energy storage capacitor, a power supply module with a second energy storage capacitor, and a data interface module. The data processing module is electrically connected to the other modules. The power supply module provides the operating voltage to the board, and its second energy storage capacitor temporarily supplies power to the data processing module during brief external power outages to record the voltage status data at the moment of power failure. The first energy storage capacitor of the RTC real-time clock module maintains clock operation for a preset duration after power failure. This utility model solves the problems of easy data loss and clock failure during power failures in traditional boards. It features high structural integration, stable operation, and accurate recording of power-down fault conditions, meeting the data continuity requirements of subway trackside equipment.

A method for controlling and / or regulating a rechargeable battery, in particular a rechargeable battery as a power supply device of a power tool, wherein the rechargeable battery comprises at least one real-time clock, at least one sensor, at least one transceiver, a memory device and a control device. The method comprises the following method steps: - adjusting the rechargeable battery from an activated state to a deactivated state; - after a first time period has elapsed from the adjustment of the rechargeable battery to the deactivated state, adjusting the rechargeable battery from the deactivated state to a verification state, wherein the rechargeable battery is adjusted to the verification state for a second time period; - detecting at least one first characteristic operating value by means of the at least one sensor when the rechargeable battery is adjusted to the verification state; - comparing the first characteristic operating value with at least one stored threshold value; - if the characteristic operating value is not detected to correspond to the at least one first threshold value, adjusting the rechargeable battery from the verification state to the deactivated state; or - if the at least one detected characteristic operating value corresponds to the at least one first threshold value, adjusting the rechargeable battery from the verification state to a cut-off state.

The application provides a real-time synchronization communication method and device of an Internet of Things equipment and a computer readable medium. The scheme can embed an automatic calibration and dynamic compensation mechanism in a communication link of a business request without relying on a built-in high-precision real-time clock and a time synchronization service. Time synchronization is decoupled from the business request by using a pre-registered interceptor, so that the Internet of Things equipment can complete time reference alignment in the communication process of a regular business request and automatically correct the time when the business request is sent, thereby ensuring the time consistency of the business event logic sequence. For developers, only the interceptor needs to be registered at initialization, and thereafter all time synchronization and compensation are completely transparent to the business layer. Therefore, the related processing logic no longer needs to be explicitly implemented in the business code, thereby effectively reducing the development complexity and error probability.

Provided are a method and a device for real-time clock synchronization, the method including: creating a configuration task, a synchronization packet task, a follow-up packet task, a delay request packet task, a delay response packet task, and a timestamp update task with the same priority and same time slice; running each task based on the time slice and in a round robin mode; generating a hardware interrupt by timing based on a clock synchronization interval; responding to a hardware interrupt of the timer hardware interrupt, identify a master port for the synchronization packet task, to record the master port with a synchronization identifier in a synchronization port table; detect a synchronization packet sending event and a delay request packet receiving event on the master port, and record synchronization packet timestamp information for updating the synchronization timestamp table and delay request packet timestamp information for updating the delay request timestamp table.

This utility model relates to aircraft onboard radio-electronic equipment. The technical result consists of increasing the survivability and resilience of an airborne radio communication network when exposed to destabilizing factors. The device comprises a data transmission network control panel, an adaptive device control unit, a network communication line status memory register, units for determining the composition and availability of new routes, a communication line parameter value memory unit, an optimal route determination unit, a communication line control unit, and an information display with a network diagram.Additionally, the device is equipped with a microelectronic systems telemetry collection unit, a geoinformation data processing unit with primary and backup channels, a technical risk metric calculation unit, a unit for searching for an optimal route based on the criterion of minimum total technical risk, a unit for generating routing tables for a standard special router, a real-time clock with a battery backup for time synchronization, and a MIL-STD-1553 interface for interaction with the onboard information and control system. 1 fig.

This disclosure provides a real-time clock power supply circuit, control method, and battery management system, relating to the field of battery management technology. The circuit includes a main power supply, a first backup power supply, a second backup power supply, a first diode, a second diode, and a third diode. The main power supply outputs a first power supply signal based on received battery power supply signals and a key signal. The first backup power supply outputs a second power supply signal based on received battery power supply signals. The second backup power supply outputs a third power supply signal. The first diode is located in the output path of the main power supply. Multiple second diodes connected in series are located in the output path of the first backup power supply. The third diode is located in the output path of the second backup power supply. The voltage amplitudes of the first, second, and third power supply signals are configured such that the main power supply, the first backup power supply, and the second backup power supply activate their respective output paths to supply power to the RTC module in time periods according to the state of the battery management system.

The present application relates to the technical field of charging time calibration for electric vehicles, and discloses a real-time clock calibration method and apparatus, a device, and a medium. The method comprises: acquiring clock calibration parameters on the basis of a preset time interval; executing a compensation error calculation process on the basis of the clock calibration parameters to obtain a compensation error; and upon receiving a sleep instruction and determining that a vehicle is not in a sleep state, calibrating a wake-up timestamp by using the compensation error, to obtain a target wake-up timestamp. The present application is used for solving the problem in the prior art that, when a vehicle is in a sleep state, the depletion of battery power due to long-term parking or a prolonged sleep state of the vehicle results in the vehicle being unable to function properly; thus, when a sleep instruction is received, a target wake-up timestamp can be determined, in order to wake up a sleep vehicle control unit at the target wake-up timestamp, so that the vehicle control unit controls a high-voltage system to charge the battery, thereby solving the problem of the vehicle being unable to function properly due to the battery voltage falling below a critical voltage.

This application discloses a device time correction method, apparatus, device, storage medium, and program product, relating to the field of embedded technology. The method, applied to embedded devices, includes: starting a time correction service via a local configuration file when the device boots up, and setting it as a prerequisite service for business services to ensure that business services start subsequently; calling the time correction service to perform corresponding time correction operations: if the hardware detection information of the real-time clock module indicates a hardware fault or absence, then performing anomaly detection on the current system time; if the current system time is abnormal, correcting the system time using a target time generated and pre-configured based on device batch information. This time correction scheme does not rely on an external network, is automated and timing-controllable, and based on a local time source, enables embedded devices to achieve time self-correction in offline deployment environments, ensuring time consistency and the reliability of business functions even without a network.

The utility model discloses a kind of low-power consumption sensing equipment with bidirectional sensing and voice interaction function, it is related to the technical field of bidirectional sensing and voice interaction, including shell, double infrared probe, main control module, audio sounding module, storage module, bluetooth communication module, power module, speaker, real-time clock module and passenger flow statistical module.Double infrared probe is divided and placed at the head of shell, the moving direction of human body can be detected, and the corresponding audio is played through speaker according to the main control module;Supporting the text-to-speech editing of mobile phone applet, audio is transmitted to storage module by bluetooth;Using intelligent hibernation technology, no one triggers 1 minute after closing part module to run with low power consumption, passenger flow can also be counted and details are recorded, adapt to a variety of power supply mode, improve the convenience and intelligent degree of use.

This utility model discloses a real-time clock circuit and a Beidou receiver, relating to the field of electronic circuit technology. The disclosed real-time clock circuit includes an energy storage module and a timing module. The energy storage module includes at least one electrolytic capacitor, which has a porous anode substrate structure and a dielectric constant higher than a preset dielectric constant. The timing module is connected to both the electrolytic capacitor and a power supply. This utility model utilizes the electrolytic capacitor to store energy when connected to a power supply, receiving the output voltage from the power supply and outputting the stored energy voltage to the timing module when the power supply is disconnected. The porous anode substrate structure of the electrolytic capacitor, with a dielectric constant higher than a preset dielectric constant, enables the storage of more energy in a short time, ensuring longer time recording even after the Beidou receiver is powered off, thus providing a reliable time reference for the long-term operation of the Beidou receiver.

Techniques for generating and / or updating a timekeeping mechanism for an ECU are described herein. Monotonic and / or global time sources may be used to generate and / or update a real time clock used by component(s) of an autonomous vehicle. In some examples, a clock manager may receive a monotonic time value from a monotonic clock and a global time value from a global clock. The clock manager may use the monotonic time value and the global time value to generate an adjustment factor. In some instances, the clock manager may store the adjustment factor in a read-only shared memory location. In such instances, vehicle component may determine a predicted current time based on reading the adjustment factor from the shared memory and the monotonic time value. Upon determining the predicted current time, the vehicle component may synchronize a real time clock of the vehicle component according to the predicted current time.

The utility model relates to industrial automation technical field provides a kind of multifunctional automation monitoring industrial computer, the multifunctional automation monitoring industrial computer includes main controller CPU, FLASH data storage unit and RTC real-time clock unit, wherein, the main controller CPU is electrically connected with FLASH data storage unit and RTC real-time clock unit respectively, the FLASH data storage unit uses double NORFLASH data storage structure, for local double backup storage to acquisition data;The RTC real-time clock unit is used to provide time reference and timestamp record.The utility model has organic integration and electrical connection by main controller CPU and double NORFLASH data storage structure and RTC real-time clock unit, realizes the local synchronous double backup storage and accurate timestamp record of acquisition data, avoids the data loss risk caused by memory failure under single storage mode, and ensures the time traceability of monitoring data, improves the reliability and stability of data storage.

This invention discloses an energy-saving control method and device for a bird tracker based on sensor fusion. The method uses an accelerometer to collect triaxial acceleration data to identify the bird's behavioral state, activating the heart rate and blood oxygenation sensors only when the bird is stationary and deactivating them during movement. It combines illumination data, location information, and the device's real-time time to determine signal obstruction environments and dynamically adjusts the operating strategies of the positioning and communication modules. Before positioning calculation, it detects the number of satellites in a low-power mode, performing full positioning only when the target is met. Power management independently controls the on / off operation of the positioning, communication, and storage modules, with standby power supplied only to the real-time clock module. The corresponding device includes a main control unit, a sensor data acquisition and tracking unit, and an energy-saving control unit, integrating multiple types of sensors and a power management module. This invention significantly reduces the tracker's ineffective power consumption and extends its battery life in the field through multi-sensor fusion and dynamic energy-saving scheduling, adapting to the long-term monitoring needs of birds.

The present disclosure generally relates to a system of air quality monitoring and notification and a method thereof specifically to monitor outdoor air quality. The system is composed of a monitoring device (100), a communication device (200), and a cloud Internet-of-Things platform (300), which operates on a dual-mode system either online or offline mode. The monitoring device (100) is used for collecting air quality 10 data and processing and analyzing the same. It is further composed of a power port and cable (114), a power switch (116), a reset switch (118), an online (102) and offline (104) switch, a plurality of gas sensors (106, 108, 110, 112), a real time clock module (122), a microcontroller with builtin WiFi module (120), a plurality of output display units (124, 126), a sound output unit (128), and a memory card module (130) all secured and enclosed in a rectangular enclosure (140). It is mounted and secured on an extendable vertical frame (400) to allow adjustments in height at levels conducive for air quality monitoring. The microcontroller (120) transmits processed data to the communication device (200) through the internet (202). The internet further transmits the data in the cloud IoT platform (300) that is further comprised of a cloud web server (302), a computing device (304), and a mobile device (306). The computing (304) and mobile devices (306) are for email notifications

This utility model discloses a commercial vehicle fuel anti-theft system based on a cockpit domain controller, comprising: a fuel level sensor, a cockpit domain controller, and an alarm execution unit. The cockpit domain controller integrates a main control unit, a real-time clock chip, and a non-volatile storage unit. After the vehicle is turned off, the system enters a low-power arming mode. The real-time clock chip periodically wakes up the main control unit to compare the current fuel level with the baseline value stored during arming. If an abnormal decrease occurs, an alarm is issued through the alarm execution unit. The alarm execution unit includes an instrument / central control display screen and an in-vehicle remote communication unit, enabling local and remote cloud-based alarms. The cockpit domain controller employs a structure that isolates security and entertainment functions to ensure the reliability of the anti-theft function. This utility model features high structural integration, comprehensive functions, and strong reliability, effectively improving the fuel asset security of commercial vehicles.

A power tool battery charger for determining time information for use in controlling charging of a power tool battery pack may include a battery pack interface, a controller and a memory. The battery pack interface is configured to receive a power tool battery pack and provide charging current to the power tool battery pack. In some embodiments, the power tool battery charger also includes an input configured to receive a set of data. The controller may be coupled to the input and configured to analyze the set of data to determine time information. In some embodiments, the power tool battery charger includes at least one sensor configured to generate a set of data. The controller may be coupled to the at least one sensor and configured to analyze the set of data to determine time information. The memory is coupled to the controller and configured to store the time information.

The utility model relates to energy storage battery technology field provides a kind of BMS topological device, the device includes multi-channel AI analog input unit, multi-channel DI digital input unit, main control MCU chip, DO digital output unit and RTC real-time clock submodule, wherein: the multi-channel AI analog input unit, multi-channel DI digital input unit and RTC real-time clock submodule are connected with main control MCU chip, and the main control MCU chip is connected with DO digital output unit. The utility model is highly integrated and optimized connection by multi-channel AI analog input unit, multi-channel DI digital input unit, main control MCU chip, DO digital output unit and RTC real-time clock submodule, realizes the integrated processing of battery management system key function, simplifies the redundant problem of the quantity of controller in traditional three-level architecture BMS system, reduces the complexity of hardware configuration and communication network, effectively reduces system total cost and fault point quantity.

The application provides a real-time clock chip detection method and device, electronic equipment and storage medium. The detection method comprises the following steps: after the state value of a state check register built in a real-time clock chip is detected, the following operations are continuously performed: reading the state value of the state check register and the time value output by the real-time clock chip; if the state value is detected each time and the time interval of adjacent operations is very small, the real-time clock chip is detected. The detection method can detect whether the in-chip register data of the real-time clock chip is valid.

The utility model belongs to the technical field of electric power complete equipment, and relates to a box-type substation communication technology. The communication management machine is provided for solving the problem that remote communication monitoring and management cannot be achieved due to the fact that most of existing box-type substations are in a traditional power distribution equipment scheme. The system has the functions of local communication, data acquisition and processing, protocol conversion, remote communication, remote upgrading and the like. The local communication module has eight independent serial ports and an RS485 communication function, and can safely isolate and collect data; a plurality of analysis protocols are built in the protocol conversion module, and data formats can be converted; the remote communication module comprises an Ethernet port used for uploading data and configuring parameters; the real-time clock RTC module provides accurate time; and a FLASH storage module and a program downloading and error printing interface are also arranged. Through the functions, remote mastering, processing, uploading and management of operation data of the box-type substation can be realized, faults can be early warned in advance, and the maintenance workload is reduced.

This application provides an RTC temperature compensation method, apparatus, device, storage medium, and program product, relating to the field of circuit electronics technology. The method includes: acquiring a first temperature of a real-time clock (RTC) module and a second temperature of an RTC oscillator; cooling the RTC module and RTC oscillator when the first temperature and / or the second temperature is higher than a first preset temperature threshold; or heating the RTC module and RTC oscillator when the first temperature and / or the second temperature is lower than a second preset temperature threshold; wherein the second preset temperature threshold is less than or equal to the first preset temperature threshold. This method is used to improve the accuracy of time determined by RTC counting.

The application discloses a new energy automobile high-voltage component wake-up stability test method and system, the system comprises a control core, a single-chip microcomputer controller, a relay module and a CAN module, and is provided with a self-powered time keeping module; the single-chip microcomputer controls the relay module to simulate repeated power-on of a storage battery, and in the simulation process, the self-powered time keeping module is used to continuously supply power to a real-time clock when the system main power is interrupted, so that continuous time stamps are added to each frame of bus message; through analysis of the time stamp sequences of wake-up messages and response messages in the repeated on-off period, the wake-up behavior time sequence of the component is reconstructed, and the wake-up success rate and delay are calculated. Through the introduction of a timing mechanism independent of the main power supply, in the extreme scenario of repeated on-off of the storage battery, the technical problems of losing time sequence information at the moment of power failure and being difficult to accurately trace the source are overcome, the reliability and precision of the test under extreme working conditions are significantly improved, and therefore the wake-up stability of the automobile high-voltage component can be effectively evaluated.

The application belongs to the field of network security and relates to a network security device based on a Loongson 3A3000, which comprises a Loongson 3A3000, a chipset, a memory module, a bus expansion interface, a network interface, a USB interface, a CF card slot, a SATA interface, a real-time clock module, a watchdog module, a serial port, a hardware monitoring module and a BYPASS module connected electrically; the Loongson 3A3000 is connected with the chipset through an HT3.0 high-speed bus; the chipset is also connected with the memory module and the network interface; the memory module is connected with the chipset through a DDR3 / DDR4 slot; and the chipset provides a bus expansion interface and a SATA interface connected with the chipset. The device can not only upload security events efficiently but also has a powerful service proxy function, thereby providing a solid technical support for building a safe and reliable network environment; and the comprehensive performance and safety of the device are of great significance for improving the overall network security protection level.

This utility model discloses a low-power inclinometer based on automatic triggering by a microswitch, including a horizontal microswitch and a housing. The horizontal microswitch has a built-in first conductive lead ball and a first contact electrode. The triggering function is achieved by using horizontal and vertical microswitches, replacing the traditional MEMS long-power-supply triggering method. In the device's sleep state, only the low-power microcontroller and real-time clock module are in a low-power state, while other peripheral modules are cut off from power through an electronic load switch, thereby significantly reducing standby power consumption and extending battery life. The horizontal and vertical microswitches can quickly generate trigger signals when the device tilts or vibrates, waking up the low-power microcontroller to perform data acquisition and processing. Compared with the software triggering method, this hardware triggering method has higher response speed and reliability, and can ensure timely detection of the device's tilt or vibration at critical moments.

The utility model discloses a commercial vehicle fuel theftproof system based on vehicle body controller, including fuel liquid level sensor, vehicle body controller and alarm execution unit. Vehicle body controller integrated main control unit, real time clock chip, state signal communication module, and main control unit integrated nonvolatile storage unit, the system still contains power management module and provides the standby power of power supply path switching, and the alarm execution unit includes local audible and visual alarm and vehicle remote communication unit, and vehicle remote communication unit pushes alarm information to mobile terminal through the cloud. After the vehicle is extinguished, real time clock chip timing wakes up main control unit and monitors fuel, and if it is abnormal to reduce, then alarms, and optimizes power consumption according to the battery state. The utility model discloses high integration, controllable cost, low power consumption, multiple intelligent alarm, can adapt to the complex working condition of commercial vehicle.

This application discloses a handheld multi-functional universal soil testing instrument main circuit, including a central processing unit module, a power supply module, a display module, a keyboard input module, a voice broadcast module, a real-time clock module, a positioning module interface, a sensor interface, and a host computer interface. The central processing unit module serves as the control center of the entire instrument; the power supply module provides power to all modules and interfaces; the display module displays information data; the keyboard input module provides keyboard input functionality; the voice broadcast module outputs voice information; the real-time clock module provides a real-time clock; the positioning module provides positioning information; the sensor interface connects to soil sensors; and the host computer interface connects to a host computer. Based on these technical principles, on the one hand, the main unit can connect to various soil sensors through a standard sensor interface, thereby achieving different parameter detection functions and improving the equipment's versatility; on the other hand, by designing the interface circuits for the voice broadcast module, real-time clock module, and positioning module, the main unit possesses application functions such as voice broadcast, timing, automatic recording, and positioning, enhancing the application value of the equipment.

This disclosure provides a real-time clock power supply circuit, control method, and battery management system, relating to the field of battery management technology. The real-time clock power supply circuit includes a main power supply, a first backup power supply, a second backup power supply, an RTC module, a first diode, a second diode, and a third diode. The main power supply outputs a first power supply signal based on received battery power supply signals and a key signal. The first backup power supply outputs a second power supply signal based on received battery power supply signals. The second backup power supply outputs a third power supply signal. The voltage amplitudes of the first, second, and third power supply signals decrease sequentially, such that the power supply to the RTC module is provided by the highest voltage amplitude among the first, second, and third power supply signals through the forward conduction of the corresponding diode. Furthermore, the main power supply, the first backup power supply, and the second backup power supply provide power to the RTC module in time periods according to the state of the battery management system, ensuring continuous power supply to the RTC module.

The application provides a high-precision synchronous clock method without PPS pulse, a device, equipment and medium, which comprises the following steps: acquiring time error information of an external clock source and a GPS clock and generating a time message; confirming a first time value and a second time value of the time message; the external clock source analyzes the time message at a first time point in response to a time request, obtains a third time value, obtains a first delay error of the intelligent power distribution terminal according to multiple time values, and confirms current time information of the GPS clock; acquiring a fourth time value at a second time point and arranging a time request message, sending the time request message to the intelligent power distribution terminal at a third time point to obtain a second delay error and confirm a first current time value of the time request message; writing the first current time value into a real-time clock of the intelligent power distribution terminal, and re-reading a second current time value. According to the technical scheme, the time synchronization accuracy can be improved, and the system anti-interference reliability can be improved.

This invention discloses a multi-dimensional adaptive calibration method for RC oscillators applied to IoT SOC chips. First, a low-power wireless communication device using an IoT SOC chip is prepared for sub-cycle calibration and coefficient calculation. Then, a local RC oscillator drives a real-time clock (RTC) counter for sleep timing. Time synchronization is maintained through the processor and memory, achieving multi-dimensional adaptive calibration of the RC oscillator applied to the IoT SOC chip. This invention solves the critical problem of "thermal transient frequency overshoot" during the "active-deep sleep" transition in crystal-free IoT chips. By introducing a feedforward parameter backoff mechanism, it overcomes the failure limitation of existing temperature compensation algorithms caused by sensor sampling lag. Its sub-cycle phase capture technology improves TSF timing accuracy from milliseconds to microseconds, enhancing the synchronization accuracy of low-cost IoT chips under ultra-long DTIM cycles, and has potential scalability in future multi-band concurrent scenarios.