A Time Synchronization Method for Ground Equipment of Launch Vehicle Control System Hardware-in-the-loop Simulation Test
A semi-physical simulation and time synchronization technology, applied to radio-controlled timers, synchronization, clocks driven by synchronous motors, etc., can solve problems such as low reliability, increased time deviation, and complex design to improve effectiveness and reliability, eliminate control accuracy errors, and improve reliability
Active Publication Date: 2019-06-21
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology
The clocks of ground equipment are different from each other due to hardware reasons. With the increase of simulation time, the time deviation will also increase significantly. If there is no time synchronization mechanism, the timing of each equipment may be inconsistent, and the increase of simulation time will aggravate the delay of each equipment. The inconsistency of the timing, the simulation test will be in an uncertain state, and the reliability of the test will be seriously reduced
[0004] In addition, due to the different communication technologies used by the active rockets, the synchronization signal interfaces used by the clock sources on the arrows are also different. As a result, the ground hardware-in-the-loop simulation test needs to configure multiple sets of equipment for synchronous communication with the products on the arrows. The cost is high, the design is complex and reliable. Low
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[0032] The problem to be solved by the present invention is to provide a clock source to ensure the time synchronization of ground equipment in a hardware-in-the-loop simulation system without an arrow synchronization source, and provide a synchronous forwarding function in a hardware-in-the-loop simulation system with an arrow synchronization source to receive The clock source time to synchronize the ground equipment.
[0033] The present invention at first will set up synchronous signal control equipment, including control module, clock board, 1553B board, AD acquisition board, serial port board, reflective memory card, synchronous forwarding module and synchronous signal interface transfer box, each board with drive.
[0034] Control module: Select and enable the corresponding board according to the clock source on the arrow. When the clock source on the arrow is the 1553B interface, enable the MT function of the 1553B board. When the clock source on the arrow is an analog ...
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The present invention discloses a carrier rocket control system semi-physical simulation test ground equipment time synchronization method. In a system having a rocket-borne clock source, a synchronizing signal control device is used as a bridge to finish the time synchronization of the rocket-borne products and the ground equipment, and in a system not having the rocket-borne clock source, a synchronizing signal control device clock source is used as a synchronous clock to finish the time synchronization between the ground equipment. The method solves a time asynchronous problem brought by the multiple devices and the long-time simulation, enables the test validity and reliability to be improved, is suitable for a semi-physical simulation system of various different communication modes, and saves the equipment cost.
Description
technical field [0001] The invention relates to a time synchronization method for ground equipment of a semi-physical simulation test of a launch vehicle control system, belonging to the field of semi-physical simulation of a launch vehicle control system. Background technique [0002] With the improvement of control precision and time precision requirements in the field of launch vehicle control, the synchronization requirements of the products on the rocket and the ground equipment in the simulation test also increase accordingly. [0003] The ground equipment for semi-physical simulation test includes simulator, inertial group simulator, servo simulator, attitude control nozzle simulator, integrated console, data processing system and many other ground equipment. The clocks of ground equipment are different from each other due to hardware reasons. With the increase of simulation time, the time deviation will also increase significantly. If there is no time synchronization...
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IPC IPC(8): G04G7/00G04R20/00
CPCG04G7/00G04R20/00
Inventor 余薛浩王迪于亚男陈海朋陈祺廖开勇姚春燕
Owner SHANGHAI AEROSPACE CONTROL TECH INST