5G-based wireless test and transmission control information transmission system
An information transmission system and launch control technology, applied in the field of sensors, can solve the problems of inaccurately characterizing the temperature of pressure-sensitive elements, unusable pressure signal signals, and no temperature correction, so as to shorten launch preparation time, reduce data loss rate, and reduce required effect
Inactive Publication Date: 2021-04-20
BEIJING JINMAIJIE TECHNOLOGY CO. LTD.
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Problems solved by technology
For example, a liquid oxygen-methane engine needs to install multiple pressure and temperature measuring points on liquid oxygen and methane storage tanks and pipelines. The pressure sensor must withstand temperature changes from normal temperature to minus 100 degrees. Without temperature correction, the pressure signal will be A large drift causes the signal to be unusable
However, the temperature compensation is often rough, the purpose is only to correct the temperature drift of the pressure signal, and it cannot accurately characterize the temperature of the pressure sensing element
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Embodiment 2
[0025] Embodiment 2: On the basis of Embodiment 1, the present invention also discloses a specific communication method: the specific steps are as follows:
[0026] Step 1: Data downlink transmission: the front-end communication server (front-end communication software) receives the data sent by the front-end test and launch control system.
[0027] Step 2: According to the design requirements, divide the data into the first transmission priority level, the second transmission priority level, and the third transmission priority level according to the data transmission priority layering mechanism in the front-end communication software. The priorities of the three levels in using channel resources are descending in descending order.
[0028] Step 3: The first transmission priority level When transmitting data, each communication node performs resource allocation and transmission task scheduling according to the established plan.
[0029] Step 4: In the second transmission prio...
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The invention discloses a 5G-based wireless test and transmission control information transmission system, which comprises a front-end information transmission system and a rear-end information transmission system which are connected through a 5G relay base station, wherein the rear-end information transmission system is composed of a rear-end communication server, rear-end communication equipment I, rear-end communication equipment II and an antenna, and the front-end information transmission system is composed of a front-end communication server, front-end communication equipment I, front-end communication equipment II and an antenna. According to the invention, an intra-layer data competition sorting mechanism is adopted, and data in the same transmission priority are transmitted, and when data accumulation occurs, the data retransmission time is determined by adopting a competitive sorting algorithm, so that the data loss rate can be reduced, and the real-time performance of transmission is improved.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a 5G-based wireless test and launch control information transmission system. Background technique [0002] Pressure value and temperature value are the two most important parameters of the liquid or gas in the pipe or box. Where rockets, missiles, aircraft or chemical reaction vessels need to measure the pressure and temperature of fuel, lubricating oil, coolant or reaction medium, especially for the pressure and temperature of low-temperature media such as rocket engine liquid nitrogen, methane and liquid oxygen Measurement often requires the sensor to be light in weight, small in size and high in measurement accuracy. [0003] Generally, in order to measure the pressure value and temperature value of the medium, it is necessary to design two openings on the pipeline or tank, and install a pressure sensor probe and a temperature sensor probe respectively. There are also so-cal...
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IPC IPC(8): H04W72/12H04W24/02H04W28/02H04W4/90
Inventor 张昌金顾祈祥王昊孙忠瑞
Owner BEIJING JINMAIJIE TECHNOLOGY CO. LTD.