JPH0325599A - Flying data collector - Google Patents

Abstract

PURPOSE:To perform the flying analysis of a rocket, etc., more accurately than ever by storing measuring data under the worse transmission condition of a telemeter in a memory device, and telemeter-transmitting storage to the ground by reading out at a time when the telemeter transmission condition is stabilized and also, no collection of flying data is required. CONSTITUTION:The measuring data via a low-pass filter 1 and an A/D (analog/ digital) converter 2 is stored in the memory device 3 at a time when the defect of the transmission condition is predicted. The measuring data stored in the memory device 3 is read out with a signal from a timer 8 at a time when, for example, no measurement of the flying data is required such as the rocket drops, etc., and is transmitted to the ground from a switch 5 after passing a D/A converter 4 via a telemeter device not shown in figure. Thus, since the measuring data at a time when the transmission condition is worse is stored transiently with the timer 8 and it is transmitted to the ground by reading out at a time when no collection of the measuring data is required, the analysis of the flying data can be performed more accurately than ever.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a flight data collection device that is mounted on a flying object such as a space probe rocket and is used to accurately collect various kinds of flight data.

(Prior Art) Conventionally, various types of automatic measurement data measured during the flight of, for example, a space rocket have been directly sent to the ground using a telemeter and monitored or analyzed.

(Problem W to be solved by the invention) However, the telemeter signal from a rocket flying at high speed has a major drawback in that it locks off due to disturbances in the electric field during combustion of the rocket engine, resulting in missing measurement data. have.

An object of the present invention is to provide a flight data collection device that eliminates the above-mentioned drawbacks in collecting flight data of high-flying objects. (Means for Solving the Problems) The present invention achieves the above object by providing a storage device between a flight data measuring device installed on a flying object and a telemeter device, and by providing a storage device between a flight data measuring device installed on a flying object and a telemeter device. The measurement data of the flight data measurement device is stored in the storage device at the time of the flight, and the stored data is read out at a time when telemeter transmission conditions are stable and collection of flight data is unnecessary, and the data is telemeter transmitted to the ground. Achieved by some means.

(Function) According to the present invention, measurement data is not lost even when telemeter transmission conditions are poor and can be safely collected on the ground, making it possible to analyze rocket flight data more accurately. .

(Example) Hereinafter, the present invention will be explained in detail using the drawings. The drawing is a block diagram showing the main components of an embodiment of the present invention, in which 1 is a low-pass filter that determines the frequency band range of rocket flight data from an automatic measuring device (not shown), which is applied from an input terminal T1. Ori. The output data is input to a memory device 3 via an A/D (analog/digital) converter 2 and temporarily stored. 4 is D for sending the output read from the memory device 3 to a telemeter device (not shown).
The /A (digital/analog) converter 5 is a switch that is switched depending on the quality of telemeter transmission conditions, and its output is applied to the telemeter device from the output terminal T2 and transmitted by telemeter to the ground.

Further, 6 is a clock pulse generator that adjusts the timing of writing to or reading from the memory device 3, 7 is an address counter necessary for storing data in the memory device 3, and 8 is for applying a switching signal to the switching device 5. This is the timer.

As described above, the flight data collection device of the present invention has M.
First, flight data output from an automatic measurement device (not shown) is applied to a low-pass filter 1, and a frequency band is determined.
/D converter 2 and switch 5. timer 8
The on/off time is preset by predicting whether the telemeter transmission conditions are good or not, and the measurement data during the time when the transmission conditions are predicted to be good is directly transmitted from the low-pass filter 1, via the switch 5, and through the output terminal T2, as shown in the figure. It is transmitted to the ground by a telemeter device that does not. On the other hand, during the time when the transmission conditions are predicted to be poor, the measurement data that has passed through the low-pass filter 1 and the A/D converter 2 is stored in the memory device 3.

The measurement data stored in the memory device 3 as described above is read out by the signal from the timer 8 at times such as when the rocket falls, and the D/A converter 4 is The signal is then transmitted from the switch 85 to the ground via a telemeter device (not shown).

As explained above, the present invention uses the timer 8 to temporarily store measurement data during times when transmission conditions are poor, reads it out at times when measurement data collection is unnecessary, and transmits it to the ground via telemeter, so that measurement data may be lost. It is possible to collect data completely without any problems, and the analysis of flight data can be made more accurate.

(Effects of the Invention) As is clear from the above explanation, the present invention can collect measurement data that may be missing depending on the transmission conditions of the telemeter.
Since it is possible to completely collect data regardless of transmission conditions, it has the effect of making rocket flight analysis more accurate, and greatly contributes to the development of rocket technology.

[Brief explanation of drawings]

The drawing is a block diagram showing a main part of an embodiment of the present invention. 1...Low pass filter, 2...A/D converter, 3...Memory device, 4...D/A converter 5 5...Switcher, 6...Clock pulse generator, 7...Address counter, 8...Timer.

Claims (1)

[Claims] A storage device is provided between a flight data measurement device installed on a flying object and a telemeter device, and measurement data of the flight data measurement device is stored in the storage device when telemeter transmission conditions are poor, such as during rocket engine combustion. A flight data collection device characterized by a configuration in which the data is read out at a time when telemeter transmission conditions are stable and collection of flight data is unnecessary, and telemeter transmitted to the ground.