The present disclosure discloses a time synchronous hybrid analog and digital sensor data acquisition system and method, comprising analog sensors, digital modules, digital sensors, hubs for networking a plurality of heterogeneous sensors, a local-area network device and a data processing terminal. The present disclosure solves the problem that data cannot be compared due to time difference in acquisition for the reason that the sampling time of different sensors cannot be synchronized precisely in the existing experiments and practical engineering, and also solves the problems of single function, low integration level and manpower consumption when different sensor instruments work separately. The data acquisition system of the present disclosure can be directly connected to various heterogeneous sensors to realize synchronous acquisition, synchronous transmission and simple and fast operation. The present disclosure greatly increases the time precision, amplitude precision and efficiency of synchronous acquisition, reduces the labor cost, and has wide application prospect.

A power supply system that includes a pluggable and replaceable modular power interface card and a separate main chassis component that can include AC to DC power conversion and regulation circuitry, a digital voltage display, and one or more card slots for receiving the power supply card. The modular power interface card can provide power to a network device that is connected thereto. The modular power interface card can include an isolation and protection unit that includes a voltage suppression subunit and a high voltage protection subunit, fusing, and a path to earth ground. The modular power interface card plugs into the main chassis and can be quickly replaced in the event of damage or failure, and can include light emitting diodes (LEDs) to indicate whether the remote device being powered is consuming current, which is useful during troubleshooting.

A power supply system that includes a pluggable and replaceable modular power interface card and a separate main chassis component that can include AC to DC power conversion and regulation circuitry, a digital voltage display, and one or more card slots for receiving the power supply card. The modular power interface card can provide power to a network device that is connected thereto. The modular power interface card can include an isolation and protection unit that includes a voltage suppression subunit and a high voltage protection subunit, fusing, and a path to earth ground. The modular power interface card plugs into the main chassis and can be quickly replaced in the event of damage or failure, and can include light emitting diodes (LEDs) to indicate whether the remote device being powered is consuming current, which is useful during troubleshooting.

A network-synchronization device may include a match filter. The match filter may be configured to generate events for synchronizing operation of elements of a network at least partially responsive to timing frames generated at a network switch. The events for synchronizing operation of the elements may include a first event generated at least partially responsive to first information associated with a first element and a second event generated at least partially responsive to second information associated with a second element. Related systems and methods are also disclosed.

A distributed network system can include a master controller having a master clock configured to output a master time, and a master transmission delay time module configured to modify the master time to add a known master transmission delay to the master time to output an adjusted master time. The system can include a first device operatively connected to the master controller and configured to receive the adjusted master time from the master controller.

Provided is a control apparatus including a key input interface including a plurality of keys, a communication interface configured to communicate with an electronic device, a memory storing store one or more instructions, and a processor configured to execute the one or more instructions stored in the memory to detect whether a power of the electronic device is turned on or turned off, and control the control apparatus to operate in a first mode, based on detecting that the power of the electronic device is turned off, wherein the operating in the first mode includes operating a pre-determined first key from among the plurality of keys in an interrupt mode, and not operating a second key other than the first key from among the plurality of keys

A method and system for the post-adjustment (i.e., offline) of event timestamps to implement virtual time synchronization amongst detection node clocks. In existing methodologies with the goal of clock synchronization, clocks (and timestamps generated therefrom) are disciplined or adjusted at the recordation time of the events on a detection node (e.g., a switch/router, an Internet-of-Things (IoT) device, a wireless sensor, etc.). However, there is no particular reason for these clocks or timestamps to be accurate during the recordation time, but rather, should be accurate at their use or interpretation time. Further, through these recordation time adjustments, clock drifts and timing errors may be gradually introduced, leading to runaway inaccuracies. The disclosed method and system intentionally avoids the disciplining of clocks at event recordation times on the detection node and, instead, adjusts timestamps during interpretation times, to overcome the aforementioned issues.

A method of operating a communication adapter of a gas turbine engine of an aircraft includes receiving a plurality of time series data at the communication adapter from an engine control of the gas turbine engine. The method also includes recording a plurality of internal sensor data of an internal sensor system of the communication adapter. The method further includes correlating the time series data with the internal sensor data based on an alignment in time to form an enhanced data set and transmitting the enhanced data set from the communication adapter to an offboard system.

The present disclosure relates to control systems, clock synchronization methods, controllers, node devices, and vehicles. In one example control system provided in this application, a primary controller directly sends a reference clock signal to at least one node device by using a ring network, so that the at least one node device can perform timing based on a frequency of the reference clock signal.

A control information utilization method and an apparatus of a terminal with heterogenous technology communication modules operating in a same frequency band are provided to protect against unnecessary battery power consumption. A control information reception method of a terminal includes receiving control information from a base station using a first module, determining a channel occupancy time based on the control information using a licensed assisted access (LAA) radio identifier, and transferring the channel occupancy time to a second module that is operating in a same frequency band as the first module.