JPH1137808A - Equipment for measuring environmental data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an equipment for measuring environmental data which enables on-board setting of conditions of measurement of the environmental data. SOLUTION: In the case where this equipment is loaded on a rocket or an artificial satellite and used for measuring temperatures as environmental data on a plurality of places, a desired measuring range is set according to a current value of a constant-current power source 2, which a range switching circuit 3 switches over on the basis of a range switching command and channel-block selection commands from a CPU circuit 1 and an abnormality judgement reference value set by the CPU circuit 1. Temperature data on a plurality of desired places are measured in the desired measuring range by a temperature sensor 8 for a block and a channel which are selected and switched over by a switching circuit 1, and thereby determination on abnormality of the data is enabled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environmental data measuring device used on a rocket or an artificial satellite for measuring environmental data at a plurality of locations.

[0002]

2. Description of the Related Art In the field of space development, a rocket or an artificial satellite is equipped with an environmental data measuring device, and various environmental data are measured in outer space by the environmental data measuring device. As a technique related to such measurement of environmental data, Japanese Patent Application Laid-Open No. 8-1
Japanese Patent Application Publication No. 01721 discloses a satellite-mounted temperature control device that holds a temperature of a device to be temperature-controlled of a device mounted on a satellite at a set temperature and further holds a temperature between a plurality of temperature-controlled devices at a set temperature difference. It has been disclosed.

As shown in FIG. 3, in this artificial satellite mounted temperature control device, the temperatures of a plurality of devices to be temperature controlled 11a to 11d are detected by a temperature detection circuit 14, and the temperature of the devices to be controlled 11a to 11d is detected. Are detected by the device temperature telemetry sensors 12a to 12d, respectively, and are input to the satellite telemetry command system 13. The satellite telemetry command system 13 also receives commands from the ground station.

[0004] Also, from the satellite telemetry command 13,
A command is output based on these input data, and this command is signal-processed by the command processing circuit 18,
It is input to the set temperature storage circuit 17. In this process, the set temperature storage circuit 17 stores the temperature control target devices 11a to 11a in advance.
The data of the set temperature of 11d and the data of the set temperature difference are stored.
4, the temperature control heaters 16a to 16d are operated based on the temperature data detected in
The temperature control of a to 11d is performed. That is, the temperature control circuit 15 sets the temperature of the temperature control target devices 11a to 11d to:
If the data differs from the set temperature data stored in the set temperature storage circuit 17, the temperature control heaters 16a to 16d are turned off.
N-OFF, for example, temperature control target devices 11a, 1
If the temperature difference between 1b is different from the set temperature difference data,
At least one of the temperature control heaters 16a and 16b is
N or OFF control is performed.

[0005]

By the way, in the above-mentioned conventional environmental data measuring device, the measuring conditions of the environmental data are set in advance, and these measuring conditions cannot be newly set on-board. The measurement range of environmental data measurement at multiple locations, the measurement target block of environmental data measurement at multiple locations, and the number of measurements cannot be newly set, and it is also possible to determine whether the measured environmental data is normal or abnormal. could not.

SUMMARY OF THE INVENTION The present invention has been made in view of the current situation of such an environmental data measuring device as described above, and has as its object to provide an environmental data measuring device capable of setting environmental data measuring conditions on-board. It is to provide a measuring device.

[0007]

An environmental data measuring apparatus according to the present invention is used on a rocket or an artificial satellite,
An environmental data measuring device for measuring environmental data at a plurality of locations, characterized by having a measuring condition setting means for setting the measuring conditions of the environmental data on-board.

The environmental data measuring apparatus according to the present invention is used by being loaded on a rocket or an artificial satellite, and measuring conditions of environmental data at a plurality of locations are set on-board by measuring condition setting means. Under measurement conditions, measurement of environmental data at a plurality of locations is performed.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 is an environmental data measuring device which is used on a rocket or an artificial satellite and measures environmental data at a plurality of locations. It is characterized by having a measurement condition setting means to set in, the measurement condition of the environmental data at a plurality of places is set on-board by the measurement condition setting means, under the desired measurement conditions set,
Measurement of environmental data at a plurality of locations is performed.

A second aspect of the present invention is the rocket according to the first aspect, wherein the measurement condition setting means sets a measurement range of environmental data measurement at the plurality of locations. Alternatively, when used on a satellite and measuring environmental data at a plurality of locations, the measurement range for environmental data measurement at a plurality of locations is set on-board by the measurement condition setting means, and under the desired measurement range conditions, Measurement of environmental data at a plurality of locations is performed.

According to a third aspect of the present invention, in the first aspect of the present invention, the measurement condition setting means sets a measurement target block and a number of times of measurement of the environmental data at the plurality of locations. When used on a rocket or satellite and used to measure environmental data at multiple locations, the measurement condition setting means sets the measurement target block and the number of measurements for environmental data at multiple locations on-board. Set and desired measurement target block
At a desired number of measurements, environmental data at a plurality of locations is measured.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the measurement condition setting means sets an abnormality determination criterion for the environmental data measurement, and the rocket or the artificial satellite When the environmental data is measured at a plurality of locations, the measurement condition setting means sets the abnormality determination criterion of the environmental data measurement at the plurality of locations on-board, and the measurement is performed according to the desired abnormality determination criterion. It is determined whether the environmental data at a plurality of locations is normal or abnormal.

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the present embodiment, and FIG. 2 is a block diagram showing the detailed configuration of FIG.

In this embodiment, a temperature is measured as environmental data. As shown in FIGS. 1 and 2,
An output terminal of a temperature sensor 8 having a plurality of sensors for measuring temperatures at a plurality of locations is connected to a switching circuit 7 for switching between a channel and a block, and an output terminal of the switching circuit 7 outputs an output signal of the temperature sensor 8. A CPU connected to an amplifier circuit 4 for amplifying, and an output terminal of the amplifier circuit 4 controlling an entire operation via an AD converter 5 for performing AD conversion.
It is connected to the circuit 1.

On the other hand, a constant current source 2 for supplying a current to the temperature sensor 8 is provided, and an output terminal of the constant current source 2 switches a current value of the constant current source 2 to switch a measurement range of the temperature sensor 8. , And the range switching circuit 3 is connected to the temperature sensor 8. The range switching circuit 3 is also connected to a bias circuit 6 that regulates the output voltage of the amplifier circuit 4 according to the measurement range, and the bias circuit 6 is connected to the pump circuit 4.

Further, in the present embodiment, the CPU circuit 1
Are connected to the range switching circuit 3 and the switching circuit 7, and the output terminal of the interface circuit 9 for changing the content of the command is
The A / D converter 5 is connected to the interface circuit 9 while being connected to the CPU circuit 1.

In this embodiment, the CPU circuit 1
Is a function of outputting a range switching command to the range switching circuit 1, outputting a channel / block selection command for selecting a channel and a block of the temperature sensor 8 to the switching circuit 7, and a function of setting an abnormality determination reference value of detection data. It has.

The operation of this embodiment having such a configuration will be described. In the present embodiment, range switching data and channel / block selection data are set in the CPU 1 in advance via the interface circuit.
A range switching command is output to the range switching circuit 3 based on the set range switching data, and the set channel
A channel block selection command is output to the switching circuit 7 based on the block selection data.

The range switching circuit 3 switches ranges according to a range switching command from the CPU circuit 1,
The current value output from the constant current power supply 2 is selected according to the range, and the current having the selected value is supplied to the temperature sensor 8. In addition, the switching circuit 7 selects a channel and a block of the temperature sensor 8 according to a channel / block selection command from the CPU circuit 1. At this time, when a command to fix the block designation is issued, the channel of only the selected block is selected, and when a command to continuously select the channel is issued several times, the designated block is designated. The number is counted.

The detection signal in the selected block and channel of the temperature sensor 8 is set to a signal value corresponding to the measurement range by the bias signal from the bias circuit 6 in the amplifier circuit 4, The converted and obtained data is input to the CPU circuit 1, and the abnormality detection is determined based on the set abnormality determination reference value. In addition, the contents of the range switching command,
When the content of the block selection command or the abnormality determination reference value needs to be changed, the change is executed by a change command from the interface circuit 9.

Table 1 shows a comparison between the characteristics of the present embodiment and the characteristics of this type of conventional environmental data measuring device.

[0022]

[Table 1]

As is apparent from Table 1, in the present embodiment, when the temperature is measured by mounting on a rocket or an artificial satellite, data of a necessary range at a necessary place can be obtained accurately.

As described above, according to the present embodiment, the CP
Based on the range switching command from the U circuit 1, the channel / block selection command, and the abnormality determination reference value set by the CPU circuit 1, the temperature sensor 8 for the selected block and channel in the desired measurement range It is possible to measure the temperature data at each location and determine the abnormality.

[0025]

According to the environmental data measuring device according to the first aspect of the present invention, when measuring environmental data at a plurality of locations when used on a rocket or an artificial satellite, the measuring condition setting means sets the environmental data. Since measurement conditions are set on-board, it is possible to measure environmental data at a plurality of locations under desired measurement conditions.

According to the second aspect of the present invention, when environmental data is measured at a plurality of locations when used on a rocket or a satellite and the environmental data is measured at a plurality of locations, the measurement condition setting means sets the environment at the plurality of locations. Since the measurement range for data measurement is set on-board, it is possible to measure environmental data at a plurality of locations under desired measurement range conditions.

According to the third aspect of the present invention, when the environmental data is measured at a plurality of locations by using it on a rocket or an artificial satellite and measuring environmental data at a plurality of locations, the measurement condition setting means sets the environment at the plurality of locations. Since the measurement target block and the number of measurements for data measurement are set on-board, it is possible to measure environmental data at a plurality of locations for the desired measurement target block with the desired number of measurements.

According to the environmental data measuring apparatus according to the fourth aspect of the present invention, when the environmental data is used on a rocket or an artificial satellite and the environmental data is measured at a plurality of locations, the environmental conditions at the multiple locations are measured by the measurement condition setting means. Since the abnormality determination criterion for data measurement is set on-board, it is possible to determine the normality or abnormality of the measured environmental data at a plurality of locations based on the desired abnormality criterion.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a detailed configuration of FIG. 1;

FIG. 3 is a block diagram showing a configuration of a conventional artificial satellite onboard temperature controller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU circuit 2 Constant current power supply 3 Range switching circuit 4 Amplifier circuit 5 A / D converter 6 Bias circuit 7 Switching circuit 7 8 Temperature sensor 9 Interface circuit

Claims (4)

[Claims] 1. An environmental data measuring device mounted on a rocket or an artificial satellite and measuring environmental data at a plurality of locations, comprising a measuring condition setting means for setting the measuring conditions of the environmental data on-board. Characteristic environmental data measurement device. 2. The environmental data measurement apparatus according to claim 1, wherein said measurement condition setting means sets a measurement range for environmental data measurement at said plurality of locations. 3. The environmental data measurement apparatus according to claim 1, wherein the measurement condition setting means sets a measurement target block and a number of times of measurement of the environmental data at the plurality of locations. apparatus. 4. The environmental data measurement apparatus according to claim 1, wherein said measurement condition setting means sets an abnormality determination criterion for said environmental data measurement.