8 results about "Serial cable" patented technology

The application provides a wideband target array calibration system, device and calibration method thereof, which comprises a master control module, a digital signal processing module, a frequency conversion module and a four-element antenna; the four-element antenna is connected with the frequency conversion module through a microwave cable; the frequency conversion module is connected with the digital signal processing module through a microwave cable and a serial cable; the digital signal processing module is connected with the master control module through an optical fiber; and the master control module, the digital signal processing module, the frequency conversion module and the four-element antenna are connected to form the wideband target array calibration system. The application independently completes the calibration work at each working frequency point in the wideband and the calibration work in the instantaneous bandwidth, and does not depend on high-end instruments, so that the defect of long time consumption in the traditional calibration using the sweep frequency mode is overcome, and the calibration time is reduced.

The invention discloses an aircraft power supply system comprehensive verification test system electrical interface accurate mapping method and device, a medium and equipment, and the method achieves bidirectional electrical interface mapping between a digital simulation system and a physical test system. A first simulation signal, a second simulation signal and a third simulation signal output by the digital simulation system are respectively processed by algorithms such as series cable voltage drop compensation, voltage and current protection and closed-loop delay compensation to generate corresponding electrical simulation signals, and then the electrical simulation signals pass through AOamp; the DO board card, the power driving device, the test exciter / measurement and control device and the like process the signals into electrical signals, and the electrical signals are input into the physical test system to drive the physical test system to verify the test; in the reverse mapping, a real object driving signal of the real object test system is subjected to filtering, compensation, reduction and rate conversion and then is input into the digital simulation system to drive the simulation of the power supply system model. According to the invention, accurate mapping of the electrical interface signal is realized through multi-algorithm cooperation, and the accuracy and reliability of the comprehensive verification test system of the aircraft power supply system are improved.

The invention relates to a high-reliability ignition control system based on a dual-detection dual-drive mechanism, and belongs to the technical field of hardware circuit design. The test system receives a data stream signal sent by the PC monitoring system through a serial port cable and then sends a response data transmission signal to the high-reliability ignition control system through a communication cable; the high-reliability ignition control system carries out power supply identification signal detection and state identification signal detection, if the high-reliability ignition control system supplies power to a battery and is in a release state, an ignition control process is started, and an ignition voltage signal is fed back to the test system through a communication cable; otherwise, ignition control is not carried out; the test system processes the ignition voltage signal to obtain an ignition voltage value, and inputs the ignition voltage value to the PC monitoring system for display; and the ignition control adopts a double-switch control mode of an electromagnetic relay and a solid relay to realize short circuit and disconnection of an ignition circuit so as to ensure accurate control and high reliability of ignition. The device has the advantages of high safety, high reliability, multi-path ignition control, mistaken ignition prevention and the like.

The invention relates to the field of vehicle-mounted camera shooting communication, and discloses a vehicle-mounted camera shooting annular communication system, method and equipment, the system comprises a main control board, a camera group and serial cables, the serial cables comprise a main cable and a standby cable, the camera group comprises a plurality of cameras and a plurality of connecting cables, and the main cable is connected with the standby cable. The adjacent cameras are in topological connection through a connecting cable, the main control board and the camera group are in topological connection through a serial cable, the main control board, the camera group and the serial cable form a loop, and the main control board is used for sending a detection signal to the camera group and sending the detection signal to the camera group based on response information of the detection signal and the electrical state of the loop. Whether a fault condition exists in the loop is judged, a data transmission line of the loop is determined based on a judgment result, a data packet sent by the camera group is received through the data transmission line, and the data transmission line at least represents the data transmission direction of the main cable and / or the standby cable. According to the technical scheme provided by the invention, the reliability and the fault-tolerant capability of the vehicle-mounted camera communication system can be improved.

The invention relates to a wireless communication system, a transport trolley, and a control method. The conveying trolley (4) is provided with a first communication unit (24) and a second communication unit (28) which are separated from each other by a specified distance or more and are connected with each other through a serial cable (34) in a communication manner. A first communication unit (24) wirelessly communicates with a communication device (8) using a predetermined channel. The second communication unit (28) shares information of wireless communication with the first communication unit (24) and the communication device (8) with the first communication unit (24) via the serial cable (34). When the wireless communication between the first communication unit (24) and the communication device (8) is obstructed, the second communication unit (28) starts wireless communication with the communication device (8) using a predetermined channel.

This invention discloses a protocol conversion method based on a dual buffer. Addressing the issue of high-priority packet loss when using a circular buffer in a serial port, it proposes a method combining a weighted cyclic priority queue and a circular buffer. This method includes: configuring a weighted cyclic priority queue in the serial port; configuring a circular buffer in the serial port; and sending or receiving packets through the dual buffer. A welding robot and a gateway are connected via a network cable, while the gateway and the welding machine are connected via a serial cable. The welding robot and gateway use a Process Field Network (PROFINET), and the gateway and welding machine use the MODBUS protocol. The gateway performs protocol conversion, thereby enabling the welding robot to control the welding machine. This invention employs a method combining a weighted cyclic priority queue and a circular buffer, reducing the loss of high-priority packets and improving the stability of the gateway system.

This invention relates to a distributed airborne variable frequency I / O integrated system for logistics conveying, applied in the field of logistics conveying control technology. It includes: integrating remote I / O and frequency converters into a single integrated unit to achieve local data acquisition and remote control of the logistics conveyor system. Each logistics conveying device is equipped with one integrated unit. The forward and reverse control commands of the frequency converter are connected internally within the integrated unit, eliminating the need for wiring. This allows for factory pre-installation and plug-in quick connection. Compared to existing solutions that centralize the frequency converter and remote I / O in a control cabinet, the field wiring of this invention only requires connecting serial cables between devices and wiring the network hub to the main control CPU, significantly reducing the workload on-site and thus improving the efficiency of on-site wiring and debugging, and reducing the on-site error rate.

Electronic system for connecting torque wrench charging cradles, comprising a plurality of charging cradles (B1-Bn), each suitable for housing in a special housing (G) an electronic or mechatronic type torque wrench (D), connected to each other in series by a serial cable (C) capable of transferring electrical energy and data between one cradle and the other. The system further comprises a charging station (3), connected via a power cable (CA) to the first (B1) or the last (Bn) charging cradle in the series.