JPH0473089B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a physical quantity distribution measuring device for measuring and understanding the distribution state of physical quantities such as temperature and humidity, illuminance, and radiation in a spatial plane.

[Technical background of the invention and its problems]

Generally, when detecting and measuring the distribution of physical quantities such as temperature and humidity, radiation dose, dust density, and special gas concentration in a relatively wide spatial plane, the measurer must bring a detector or measuring device suitable for the physical quantity to be measured. In addition, when moving on the spatial plane, the operator must carry a floor map, an equipment layout diagram, a data sheet for recording the measurement results, etc. to identify the measurement position. Then, while moving, physical quantities are measured at each of a large number of measurement positions, and the measurement results are recorded on the data sheet along with measurement conditions such as measurement location and measurement time. Based on the data recorded in this data sheet, a distribution map of physical quantities within the measurement space plane is created and the distribution state is manually determined.

However, according to this method, work such as confirming the measurement position, taking measurements, and recording the measurement results must be performed for each measurement position, which takes a lot of time and effort when the measurement target space is wide. This requires a lot of effort, and as a result, the measurement work becomes complicated and there is a risk that the work efficiency will decrease. Furthermore, if the space to be measured is a dangerous space such as a radiation field, this is not preferable in consideration of the radiation exposure of the person being measured, and it is also required to process data quickly after measurement.

[Purpose of the invention]

The purpose of the present invention is to simplify the work of moving within a measurement area and measuring physical quantities, thereby shortening work time, improving safety and workability, and speeding up data processing after measurement. An object of the present invention is to provide a highly reliable physical quantity distribution measuring device.

[Summary of the invention]

The physical quantity distribution measuring device of the present invention includes a resistance sheet for drawing a map diagram of a measurement area, an equipment layout diagram, etc. for measuring the distribution of physical quantities such as temperature and humidity, illuminance, and radiation in a certain spatial plane; A diagram data storage means for detecting and storing drawn diagram data as two-dimensional coordinate data, a physical quantity detecting means for detecting a physical quantity, and a measurement position indicating means for indicating a measurement position on the diagram drawn on the resistance sheet at the time of measurement. and a measurement position physical quantity storage means for detecting the measurement position data instructed by the instruction means as two-dimensional coordinate data and storing it as a pair of data with the physical quantity data detected by the physical quantity detection means, and the measurement position physical quantity. The apparatus includes a storage means and an arithmetic processing means for creating a physical quantity distribution diagram or the like based on the data contents stored in the diagram data storage means, respectively.

Therefore, if a map diagram of a measurement area, an equipment layout diagram, etc. are drawn on the resistance sheet in advance, the diagram data is detected and stored as two-dimensional coordinate data.
Also, during measurement, move within the measurement area and measure the physical quantity at the measurement position, and if you specify the measurement position on the diagram drawn on the resistance sheet, the specified measurement position data will be detected as two-dimensional coordinate data, and the physical quantity will be measured. The data is stored as a pair of data with the physical quantity data detected by the detection means. Then, a physical quantity distribution map or the like is created based on the diagram data and the paired data of measurement position data and physical quantity data.

[Embodiments of the invention]

In explaining one embodiment of the present invention, the operating principle of the digitizing circuit used in this embodiment will be explained with reference to FIGS. 1 and 2.
The digitization circuit has the function of converting an analog quantity into an encoded digital code, and calculates the specified position from the ratio of current flowing through a planar resistor (hereinafter referred to as a resistance sheet) and the division ratio of voltage. It is detected and obtained as two-dimensional coordinates of x and y. An example is shown in FIG. Reference numeral 1 in the figure indicates a resistance sheet. Edge electrodes 2 are provided at both ends of this resistance sheet 1, respectively. and power supply 3
A driving voltage is applied to the resistor sheet by a voltage pen 4 having a . The configuration is such that the x-coordinate of the point where the driving voltage is applied by the voltage pen 4 is determined from the current ratio flowing through the electrode 2 at that time.

Another example is shown in FIG. Reference numeral 5 in the figure indicates a resistance sheet. A conductive sheet 6 is placed on this resistance sheet 5. Further, a large number of electrodes are provided around the resistor sheet 5, and a diode switch circuit 7 detects the x-axis coordinate in a time-division manner, a diode switch circuit 8 detects the y-axis coordinate in a time-division manner, and these detection signals are transmitted. This configuration is based on which a two-dimensional coordinate code is obtained by an encoding circuit 9.

Another example is to use a method in which two resistance sheets are provided and the two resistance sheets are brought into direct contact at a designated point, thereby obtaining a two-dimensional coordinate code without using a special pen such as the voltage pen. .

An embodiment of the present invention using the digitizing circuit described above will be described with reference to FIG. FIG. 3 is a diagram showing the configuration of the physical quantity distribution measuring device according to this embodiment. In the figure, 11 indicates an operating mechanism. This operating mechanism 11 is composed of an input key operating section 12, a digitizing circuit 13, a voltage pen 14, and an interface 15. The digitizing circuit 13 has a configuration in which a confirmation paper sheet 17 is placed on a resistor sheet 16 and diode switch circuits 18 and 19 are provided around it. The diode circuit 18 detects the x-axis coordinate, and the diode switch circuit 19 detects the y-axis coordinate. Then, the input key operation section 12 is used to set the drawing operation mode or the measurement mode, and for example, when the drawing operation mode is set, the voltage pen 14 is used to prompt the situation at the measurement location.
Alternatively, check the map, layout, or situation diagram of the site so that you can accurately grasp the position to be measured from now on.
Draw on top. This is diode switch circuit 1
8 and 19, it is configured to detect as two-dimensional coordinates. When the measurement mode is set using the input key operation section 12, the measurer uses the voltage pen 14 to indicate and touch the position to be measured while referring to the confirmation paper sheet 17 on which the record of the drawing input remains. In this case as well, the designated measurement position is detected as two-dimensional coordinates by diode switch circuits 18 and 19. In the figure, 20 indicates a detection mechanism. This detection mechanism 20 is a physical quantity detection sensor 2
1 and a detection signal processing circuit 22. Further, 23 in the figure indicates a storage mechanism. This storage mechanism 23 is composed of a data processing/control circuit 24, a storage memory circuit 25, and a terminal interface 26. That is, the drawing drawn on the resistance sheet 16 by the voltage pen 14 is detected as two-dimensional coordinates by the diode switch circuits 18 and 19, inputted to the data processing/control circuit 24 via the interface 15, and converted into a predetermined signal form. After being organized, it is stored in the storage memory circuit 25 (figure data storage means). Furthermore, the measurement position indicated by the voltage pen (measurement position indicating means) 14 during measurement is determined by a diode switch circuit 18,
19 as two-dimensional coordinates and sent to the detection signal processing circuit 22 and data processing/control circuit 24 via the interface 15. The physical quantity detection sensor 21 (physical quantity detection means) is always in operation, and the detection signal processing circuit 22 processes the detection signal from the physical quantity detection sensor 21 in response to the input of measurement position data from the interface 15. /Transfer to control circuit 24. The data processing/control circuit 24 converts and organizes the detection signal and the measurement position signal into a predetermined signal format, and sends the data as a pair of data to the storage memory circuit 25 for storage (measurement position physical quantity storage means). .
Therefore, during measurement, the physical quantity is measured at the measurement position by moving within the measurement area, and the voltage pen 1
4, the physical quantities at the measurement positions are detected and stored in the storage memory circuit 25 as paired data. In the figure, 26 indicates an arithmetic processing mechanism. This arithmetic processing mechanism 27 is composed of an arithmetic circuit 28 dedicated to physical quantity distribution processing, a graphic display circuit 29, and an I/O output device 30.
The paired data consisting of the drawing data, physical quantity measurement data, and measurement position data stored in the storage memory circuit 25 is input to the arithmetic circuit 28 dedicated to physical quantity distribution processing via the terminal interface 15, and the physical quantity distribution is displayed by the graphic display circuit 29. The configuration is graphically displayed as a state diagram (arithmetic processing means). Furthermore, the I/O output device 30 is configured to record and organize the physical quantity distribution. The operation mechanism 11 , the detection mechanism 20, and the storage mechanism 23 are integrated, compact, and portable, and are configured to be carried by the measurer during measurement.

Based on the above configuration, a case will be described in which, for example, the temperature distribution near the piping of a certain plant is measured. First, the input key operation unit 12 is used to set the mode to the drawing operation mode. and voltage pen 14
The pipe installation state is drawn on the resistance sheet 16 via the confirmation paper sheet 17 as shown in FIG. This drawn diagram is detected as two-dimensional coordinates by the diode switch circuits 18 and 19 and sent to the data processing/control circuit 24 via the interface 15, where it is converted into a predetermined signal format.
The data is organized and sent to the storage memory circuit 25 for storage. Next, the input key operation unit 12 is used to set the mode to measurement mode. Then, the measurer moves near the piping to be measured and uses the voltage pen 14 to sequentially indicate and touch measurement positions while referring to the confirmation paper sheet 17. voltage pen 14
The measurement position indicated by is detected as two-dimensional coordinates by the diode switch circuits 18 and 19 and sent to the detection signal processing circuit 22 and the data processing/control circuit 24 via the interface 15. The detection signal processing circuit 22 responds to the measurement position data input from the interface 15 and sends the temperature detection signal from the physical quantity detection sensor 21 to the data processing/control circuit 24 . The data processing/control circuit 24 converts and organizes the temperature detection signal and the measurement position signal into a predetermined signal format, and sends them to the storage memory circuit 25 as a pair of data. Therefore, the storage memory circuit 25 stores paired data consisting of drawing data indicating the piping installation state, measurement position data, and temperature detection data. The data stored in the storage memory circuit 25 is inputted to the arithmetic unit 28 dedicated to physical quantity distribution processing, subjected to arithmetic processing, and sent to the graphic display circuit 29. Then, the graphic display circuit 29 displays the fourth
A graphical display as shown in the figure is made, which allows the state of temperature distribution in the vicinity of the piping to be grasped. In FIG. 4, numerals 31 and 32 indicate drawn piping, and numeral 33 indicates a valve inserted in the piping 32. Also, the numbers written indicate the temperature at the designated measurement position. The temperature distribution near the piping thus obtained is recorded and filed by the I/O output device 30.

As described above, according to the physical quantity distribution measuring device according to the present embodiment, if the installation state of the piping to be measured is drawn on the resistance sheet 16 using the voltage pen 14 and stored as drawing data in the storage memory circuit 25, at the time of measurement. By simply moving within the measurement area and measuring the physical quantity at the measurement position and indicating the measurement position with the voltage pen 14, the temperature at the measurement position can be detected and sequentially stored in the storage memory circuit 25 as paired data. This simplifies measurement work and improves work efficiency. Furthermore, since the working time is greatly shortened, when measurements are carried out in dangerous areas such as radiation fields, it is possible to reduce the radiation exposure of the measurement personnel, and to greatly improve safety.
In addition, you can easily draw and input drawings to understand the measurement position according to the actual site situation, and the measurement position can be recognized and specified in the same coordinate system as the input drawing, so the input of the measurement position is uniform. It is possible to obtain highly reliable data because the distribution can be shown on the input diagram. Furthermore, since there is no need for the conventional work in which the measurer reads data from a measuring instrument and stores it in a data sheet, accurate data can be obtained without any misreading by the measurer. Furthermore, in order to accurately grasp the distribution state, the absolute value of physical quantities such as temperature, the measurement position, and the surrounding situation of the measurement target space can be obtained in a signal format suitable for calculation processing by computers, etc., making data processing easier. It becomes easier and the processing time is also shortened.

In the above embodiment, the digitizing circuit 13 is composed of a voltage pen 14, a resistor sheet 16, and diode switch circuits 18, 19. Those using a combination of a pen and photodetecting elements arranged in a matrix, those determined from the ratio of current or voltage,
There are some methods that are determined based on capacitance, and similar effects can be achieved using these methods. Further, physical quantities to be measured include not only temperature but also humidity, illuminance, radiation dose, dust density, specific gas concentration, and other measured values as long as they can be treated as electrical signals.

〔Effect of the invention〕

As described in detail above, according to the present invention, if a map diagram of a measurement area, an equipment layout diagram, etc. are drawn on a resistance sheet in advance, the map data is detected and stored as two-dimensional coordinate data. Also, when measuring, move within the measurement area and measure the physical quantity at the measurement position, and specify the measurement position on the diagram drawn on the resistance sheet, the specified measurement position data will be changed to 2.
The data is detected as dimensional coordinate data and stored as a pair of data with the physical quantity data detected by the physical quantity detection means. Then, a physical quantity distribution map or the like is created based on the diagram data and the paired data of measurement position data and physical quantity data.

Therefore, the conventional work of reading measurement data from a measuring instrument for each measurement position, determining the measurement position from a drawing, etc. carried, and entering it in a data sheet is no longer necessary, and the physical quantities moving within the measurement area are no longer required. The measurement work can be simplified, the working time can be shortened, and the workability can be improved. You can easily create and input a map etc. to understand the measurement location according to the situation of the measurement location, and you can easily and accurately recognize and specify the measurement location on the created and input drawing. Therefore, input of measurement positions is standardized and highly reliable data can be obtained. Further, by shortening the working time, for example, when the measurement target space is a dangerous space such as a radiation field, the radiation exposure of the measurement personnel can be reduced, and safety can be greatly improved.

[Brief explanation of drawings]

1 and 2 are diagrams showing the configuration of a digitizing circuit, FIGS. 3 and 4 are diagrams showing an embodiment of the present invention, and FIG. 3 is a diagram showing the configuration of a physical quantity distribution measuring device. FIG. 4 is a diagram showing an example of a graphic display. 11 ...operation mechanism, 20 ...detection mechanism, 23 ...
...Storage mechanism, 27 ...Arithmetic processing mechanism.

Claims (1)

[Claims] 1. A resistance sheet for drawing a map diagram of a measurement area, an equipment layout diagram, etc. for measuring the distribution of physical quantities such as temperature, humidity, illuminance, and radiation in a certain spatial plane, and a two-dimensional image data drawn on this resistance sheet. A diagram data storage means for detecting and storing coordinate data, a physical quantity detecting means for detecting the physical quantity, a measurement position indicating means for indicating a measurement position on the diagram drawn on the resistance sheet at the time of measurement, and this indicating means A measurement position physical quantity storage means for detecting instructed measurement position data as two-dimensional coordinate data and storing it as a pair of data with the physical quantity data detected by the physical quantity detection means, this measurement position physical quantity storage means and the above-mentioned figure. 1. A physical quantity distribution measuring device comprising: arithmetic processing means for creating a physical quantity distribution diagram or the like based on data contents respectively stored in data storage means.