JPH0284826A - Telemetry processor - Google Patents

Abstract

PURPOSE:To attain the reduction of the number of signal lines, the light weight of equipment, and cost reduction and to simplify wiring even when a design is changed by providing a multiplexer part, a packet generating part, and a block selection signal generating part. CONSTITUTION:The multiplexer part 4 collects plural binary telemetry data signals from loaded equipment 2, and generates plural signals of eight bits corresponding to a block selection signal from the block selection signal generating part 5, and sends them to the packet generating part 7 sequentially via eight signal lines, The generating part 7 synthesizes a packet signal by synthesizing an input signal from the part 4, the block selection signal from the part 5, and an interface identification code from an interface identification code generating part 6, and furthermore, converts the signal to a serial signal, and sends it to a data editing device 3 via one signal line. Thus, by making the signal into the block signal and the packet signal, it is possible to attain the reduction of the number of signal lines, the light weight of the equipment, and the cost reduction, and also, to simplify the wiring due to the change of the design.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telemetry processing device, and more particularly to a telemetry processing device for binary telemetry data signals to be mounted on a satellite.

[Conventional technology]

In a conventional telemetry processing device, each of a plurality of binary telemetry data signals outputted from a plurality of on-board devices is sent to a data editing device via a respective signal line.

[Problem to be solved by the invention]

The conventional telemetry processing device described above sends each binary telemetry data signal outputted from a plurality of on-board devices to the data editing device via its respective signal line. The number of signal lines required is equal to the number of telemetry data, and a large number of signal lines from onboard devices are added up to connect to the data editing device, so an extremely large amount of internal wiring is required. There is.

This not only increases the weight of the satellite equipment, for which weight reduction is the most important requirement, but also increases costs in terms of material costs and wiring man-hours.

Furthermore, when there is a design change, there is a drawback that a large amount of man-hours are required to change the wiring of the signal line.

An object of the present invention is to provide a telemetry device that eliminates the above-mentioned drawbacks by reducing the number of internal wires for telemetry data signal lines.

[Means to solve the problem]

The telemetry processing device of the present invention includes means for sequentially generating block selection signals in response to data request commands from a data editing device, and outputs from a plurality of on-board devices via a plurality of signal lines in accordance with the block selection signals. means for grouping a plurality of binary telemetry data signals into a preset number and transmitting them as a block signal; means for generating an identification code of a corresponding on-board device; and the block selection signal and the block signal. and means for synthesizing the identification code, converting it into a serial signal, and sending it to the data editing device.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

The device of the present invention is arranged corresponding to each on-board device 2 that sends out a plurality of binary telemetry data signals via respective signal lines, and in the figure, the telemetry processing device 1 is
Multiplexer section 4, block selection signal generation section 5, interface identification code generation section 6, bucket 1 to generation section 7
It consists of

The multiplexer section 4 has a plurality of 2
The binary telemetry data signals are collected through the respective signal lines, and in response to the block selection signal from the block selection signal generator 5, the binary telemetry data signal lines are grouped into groups of 8, for example, and are converted into 8-bit data. A plurality of block signals are generated and sequentially sent to the packet generator 7 via eight signal lines.

Upon receiving the data request command from the data editing device 3, the block selection signal generation section 5 generates a block selection signal for sequentially specifying and calling block signals, and sends this signal to the multiplexer section 4 and the packet generation section 7. Send.

Since telemetry processing devices are arranged and operated in correspondence with each of a plurality of onboard devices, the interface identification code generation unit 6 generates an identification code for identifying the onboard device to which each telemetry processing device corresponds, and It is sent to the generation unit 7.

The packet generation section 7 generates a telemetry data signal (block signal) in units of 8 bits in one block from the multiplexer section 4, a block selection signal from the block selection signal generation section 5, and an interface identification code from the interface identification code generation section 7. are combined to generate the packet signal shown in FIG. 2, and further, this packet signal is converted into a serial signal and sent to the data editing device 3 via one signal line.

The packet signal includes an interface identification code that identifies which onboard device outputs the telemetry data signal, and a block selection signal that identifies the order of the block signals. Telemetry data signals can be easily extracted and classified.

The data editing device 3 sequentially sends data request commands to a plurality of telemetry processing devices, collects packet signals, edits them, and sends them to a transmitter.

In the above explanation, the multiplexer unit 4 groups eight telemetry data signal lines and generates a telemetry data signal (block signal) in which one block is 8 bits. You can also bracket it with

〔Effect of the invention〕

As explained above, according to the telemetry processing device of the present invention, a large number of binary telemetry data signals output from a plurality of on-board devices are grouped into a block signal by a preset number, and further, this is identified. The number of signal lines for the telemetry data signal can be significantly reduced by combining the telemetry data signal with a signal for a packet signal and sequentially converting it into a serial signal and sending it to the data editing device. Therefore, it is possible not only to reduce the weight of the equipment onboard the satellite, but also to reduce costs in terms of material costs and wiring man-hours.Furthermore, even in the case of design changes, wiring work can be simplified.

[Brief explanation of drawings]

FIG. 1 is a configuration block diagram showing one embodiment of the present invention, and FIG.
The figure is an explanatory diagram showing a packet signal. 1... Telemetry processing device, 2... Onboard equipment, 3.
...Data editing device, 4...Multiplexer section, 5.
. . . block selection signal generation unit, 6 . . . interface identification code generation unit, 7 . . . packet generation unit.

Claims (1)

[Claims] In a telemetry processing device that collects a plurality of binary telemetry data signals outputted from a plurality of onboard devices via a plurality of signal lines into a data editing device, a block is selected in response to a data request command from the data editing device. means for sequentially generating signals; means for grouping the binary telemetry data signal into a preset number according to the block selection signal and transmitting it as a block signal; and generating an identification code for a corresponding mounted device. and a means for synthesizing the block selection signal, the block signal, and the identification code, converting it into a serial signal, and sending it to the data editing device are arranged corresponding to the mounted equipment. Telemetry processing equipment.