RU184634U1 - MEASURING INSTRUMENT REPORTING DEVICE - Google Patents

Abstract

The utility model relates to reading devices of measuring instruments, in particular, a discrete-analog reading device. The reading device of the measuring device has a scale with an LED indicator formed by the first row of color LEDs and the second row of color LEDs located along the first row of LEDs, and the LEDs are made with the ability to change the color of the glow when the measured parameter goes beyond the boundary of the value zone defined by the first setting. In this case, the second row of LEDs has an independent switching circuit, which ensures that only those second row LEDs are located that are located along the switched on LEDs of the first row outside the range of values, the boundary of which is determined by the first setting, and the turned on LEDs of the second row have the same glow color as the turned on LEDs first row. EFFECT: facilitated reading of readings and monitoring of the measured parameter. 4 s.p. f-ly and 6 ill.

Description

FIELD OF TECHNOLOGY TO WHICH A USEFUL MODEL IS

This utility model relates to the field of measuring devices, in particular, to reading devices of measuring devices, in particular, discrete-analog reading devices.

BACKGROUND

The reading devices of measuring instruments with a pointer in the form of a series of color LEDs, for example, tri-color LEDs arranged in the form of arcs of circles or in the form of straight lines, are widely known in the prior art. Along a series of LEDs is a drawn scale consisting of figures and numbers. The reading is carried out along the length of the measured value pointer, i.e. at the end of a column of turned on LEDs relative to the drawn scale.

As an example, the reading device of the ammeter and voltmeter of narrow-profile F1730 manufactured by Priborostroitelny Zavod Vibrator OJSC, designed to measure dc current and dc voltage, as well as to signal the output of the measured value from the set value region, information about which was obtained from the source / 1 / Ammeters and voltmeters narrow-profile F1730 // URL: http://www.all-pribors.ru/opisanie/51130-12-fl730-54291 (accessed: 04/10/2018).

The range of readings of the measuring device on the reading device is usually divided into three zones in which the LEDs are lit in different colors, for example: the “normal” zone - green, the “warning” zone - yellow, the “emergency” zone - red.

The informative ability of known readout devices is usually quite sufficient if the operator observes one or more devices. However, if there are a lot of devices, as it happens on the boards of nuclear power plants (NPPs) - a hundred or more, then difficulties arise due to the large size of the shield and, consequently, the large distance to the operator controlling such a shield. To facilitate the work of the operator in such cases, without changing the control circuit, increase the luminous part

LED indicator of the measured value by supplying the reading device with a second row of LEDs, which are connected in parallel with the LEDs of the first row.

As an analogue closest to the utility model (prototype), the reading device of the measuring device was selected, information about which was obtained from the source / 1 / NTM-M: Loop, Signal or Externally Powered Digital and Analog Replacement Meter, 2017 // URL: http://www.otekcorp.com/ntm-m (accessed: 04/10/2018).

The configuration of the LED pointer used in the prototype does not completely remove the difficulty of reading readings and subsequent monitoring of the behavior of the controlled parameter (measured value) when it leaves the set value zone, since there are a large number of other devices on the shield, the readings of which can also be characterized by a change in the color of the glow and the need operational monitoring of the controlled process.

DISCLOSURE OF THE ESSENCE OF A USEFUL MODEL

To solve the above technical problem associated with the use of the prototype, a meter reading device is proposed having a scale with an LED indicator formed by the first row of color LEDs and the second row of color LEDs located along the first row of LEDs, and the LEDs are configured to change the color of the glow when the measured parameter outside the range of values defined by the first setting, characterized in that the second row of LEDs has an independent it inclusion providing inclusion of only those of the second row of LEDs, which are arranged along the first row of LEDs included is values zone whose boundary is defined by the first set point, wherein the second row of LEDs included have the same luminescence color as the first row of LEDs included.

Using the reading device according to the utility model allows to provide a technical result consisting in facilitating the reading of indications and monitoring of the controlled parameter by the operator, since when the controlled parameter leaves the setpoint zone (for example, from the “normal” zone to the “warning” zone, the boundary of which is set setting, in addition to changing the color of the LED pointer, the shape of the pointer will also change due to an increase in the luminous area of the LEDs included in it - according The second row of LEDs with the same color of illumination turns on clearly, while the increase in the luminous area of the LEDs occurs precisely in the area of the scale corresponding to the value going beyond the limit specified by the setting, i.e. corresponding to values higher or lower than the setting. According to the utility model, the reading device according to the utility model also makes it possible to distinguish those measuring devices that control especially important parameters.

When using multiple settings, the preferred embodiment of the utility model provides that the first row of LEDs can be further configured to change the color of the glow when the measured parameter goes beyond the boundary of the value zone defined by the second setting, which is different from the first setting, while the circuit for switching on the second row of LEDs provides switching on only those second row LEDs that are located along the switched on LEDs of the first row outside the range of values, the boundary of which is defined in Ora setpoint, the second row of LEDs included have the same luminescence color as the first row of LEDs included.

Moreover, to increase the information content of the reading device, the first and second row of LEDs can contain constantly on LEDs to display the first setting and / or second setting.

To further increase the information content, the scale of the reading device can also be equipped with an LED digital pointer.

To expand the arsenal of reading devices that can be created according to the utility model, it is possible to make rows of LEDs in the form of arcs of concentric circles or in the form of parallel straight lines.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic illustration of a reading device according to one embodiment of a utility model in a situation where the value of the measured parameter does not exceed the setting.

Figure 2 is a schematic illustration of a reading device according to one embodiment of a utility model in a situation where the value of the measured parameter exceeds the first setting.

Figure 3 is a schematic illustration of a reading device according to one embodiment of a utility model in a situation where the value of the measured parameter exceeds a second setting that is greater than the first setting.

FIGS. 4-6 are a schematic illustration of a reading device with a digital pointer according to one embodiment of the utility model, in the same situations as indicated above in connection with FIGS. 1-3.

IMPLEMENTATION OF A USEFUL MODEL

Next, with reference to the accompanying drawings, a detailed description of an example implementation of a utility model.

Figure 1-6 schematically shows the reading device of a measuring device, in particular, an ammeter designed to measure and control direct current, as well as non-electrical quantities when working in conjunction with primary converters, if they convert non-electrical quantities into current. The device is tunable and serves to measure and signal the output of the measured value from a given zone. In particular, this device can be used to display analog signals in control systems of nuclear power plants, other energy facilities and general industrial purposes.

In the illustrated example, the reading device is equipped with a circular discrete-analogue scale containing a set of figures and numbers 0, 20, 40, 60, 80, 100, corresponding to a measurement range from 0 to 100 amperes (A). Instead of the indicated unit of measurand “A” there can be any other name (kPa, B,%, etc.). The name is applied to the interchangeable nameplate located between the beginning and end of the LED pointer (not shown in Fig. 1-6). For example, if a measuring device is used as a voltmeter to measure DC voltage, the scale is graduated in volts.

In the illustrated example, the measurement range of the scale is conditionally divided into three zones: a zone of constant current values from 0 to 50 A (zone "normal"), a zone of constant current values from 50 to 80 A (zone "warning") and a zone of constant current values from 80 up to 100 A (zone "accident"). The boundaries between the zones are determined by the settings of 50 and 80 A, respectively. The settings can be adjusted when programming the parameters of the measuring device in which the reading device is used.

To indicate the current value of the measured value, the reading device contains an LED indicator formed by the first row of 1 color LEDs and the second row of 2 color LEDs located along the first row of 1 LEDs so that the rows of LEDs form arcs of concentric circles. The color of the indication is determined by the color of the LEDs, which, in turn, depends on the current value of the measured parameter, more precisely, on the zone in which the current value of the measured parameter is located. Display color can be selected on request. In this example, green LEDs are used to indicate the current value located in the “normal” zone, yellow LEDs are used to indicate the current value located in the “warning” zone, and yellow is used to indicate the current value located in the “alarm” zone red glow of LEDs. In the drawings, unpainted rectangles are used to indicate off LEDs. The crossed out rectangles are used to indicate the on LEDs having a green glow. Gray rectangles are used to indicate the LEDs that have a yellow glow. The black rectangles are used to indicate the on LEDs having a red glow.

Both the first and second row 1, 2 of the LEDs can contain at least one LED 3, 4, which, depending on the settings, can be switched on continuously to indicate the settings. In this example, these LEDs are used to indicate the settings of 50 A and 80 A, and are located above the corresponding risks of the scale. The LEDs 3 for indicating the setpoint 50 A have a yellow glow, and the LEDs 4 for indicating the setpoint 80 A have a red glow.

According to a utility model, the second row of 2 LEDs has an independent switching circuit independent of the switching circuit of the first row of 1 LEDs. The independent switching circuit allows you to include in the index only those LEDs of the second row 2, which are located along the included LEDs of the first row 1 outside the value zone, the boundary of which is determined by the first setting, i.e. when the measured parameter, depending on the setting, acquires a value less than the first setpoint or greater than the first setpoint as described below and the illustrated example. According to a utility model, the turned on LEDs of the second row 2 have the same glow color as the turned on LEDs of the first row 1.

Figure 4-6 shows a similar reading device according to a utility model, additionally equipped with a LED digital pointer 5, for example, a well-known four-digit seven-segment indicator.

The following describes the operation of the reading device according to the utility model using the example of the reading device shown in figures 1-6.

Figures 1 and 4 show a situation where the current value of the direct current is 44.5 A, which is less than the first setting of 50 A (according to the settings, the current value is in the "normal" zone). In this situation, a part of the LEDs of the first row 1, located above the risks of the scale between 0 and 44.5 A, is turned on, as well as LEDs 3 of both rows to indicate the first setpoint of 50 A and LEDs 4 of both rows to indicate the second setpoint of 80 A. In an embodiment of the utility model with 4, a digital pointer 5 shows a value of 044.5. Thus, the current value of the direct current is indicated by the position of the last LED on in the first row 1 and, optionally, by the numbers 044.5 on the digital pointer 5. The LEDs of the second row 2 are not turned on, except for the LEDs 3 and 4 of the second row to indicate the settings of 50 and 80 A, respectively. In the situation with figures 1 and 4, the glow color of the first row 1 of the LEDs and, optionally, the numbers on the digital pointer 5 is green. Here, as well as in the situations considered below, the LEDs 3 of the first and second row used to indicate the setpoint 50 A have a yellow glow, and the LEDs 4 of the first and second row used to indicate the setpoint 80 A have a red glow. In all situations considered, the LEDs 3, 4 of both rows are in the on state, that is, they constantly indicate the first and second settings, respectively.

Figures 2 and 5 show the situation when the current value of the direct current is 60 A, which is more than the first setting of 50 A (according to the settings, the current value is in the "warning" zone). When the first setting is exceeded, part of the LEDs of the first row 1, located above the risks of the scale between 0 and 60 A, turns on, and the color of the glow changes from green to yellow. In this case, by means of an independent switching circuit, part of the LEDs of the second row 2 is turned on. The included part of the LEDs of the second row 2 is located above the risks of the scale between 50 and 60 A and has a yellow glow, like the included part of the LEDs of the first row 1. Thus, when the constant value is output current from the zone limited by the first setting (the parameter changes from the “normal” zone to the “warning” zone), the operator can observe, in addition to changing the main color of the glow from green to yellow, an increase in the area of the LED’s glow bottom of the pointer, and it is in the area of the scale corresponding to the excess of the first setting, i.e. only parameter values that fall into the warning zone. Additionally, in the embodiment of the utility model (see FIG. 5), the digital pointer 5 shows the value 060.0, and when the first setting is exceeded, the glow color of the digits also changes from green to yellow.

Figures 3 and 6 show the situation when the current value of the direct current reaches 85 A, which is more than the second setting of 80 A (according to the settings, the current value is in the "accident" zone). When the second setting is exceeded, a part of the LEDs of the first row 1, located above the risks of the scale between 0 and 85 A, turns on, and the color of the glow changes from yellow to red. In this case, through an independent switching circuit, part of the LEDs of the second row 2 is turned on. The included part of the LEDs of the second row 2 is located above the risks of the scale between 50 and 60 A and has a red glow, like the included part of the LEDs of the first row 1. Thus, when the constant value is output the current from the zone limited by the second setting (the parameter changes from the “warning” zone to the “accident” zone), the operator can observe, in addition to changing the primary color of the glow from yellow to red, an increase in the area of the LEDs glow iodine pointer, and it is in the area of the scale corresponding to the excess of the second setting, i.e. only parameter values that fall into the “accident” zone. Additionally, in the embodiment of the utility model of FIG. 6, the digital pointer 5 shows the value 085.0, and at the time of changing the color of the pointers of the measured quantity, the glow color of the numbers also changes from yellow to red.

Based on the foregoing description, a person skilled in the art will be able to implement a utility model using tools and techniques that are themselves known from the prior art, in particular from the above sources. It should be borne in mind that the examples of the utility model disclosed above cannot be considered as limiting the scope of patent protection, which is determined by the attached utility model formula. So, an important aspect of the utility model is that the settings may not be “increase” as in the considered example, but also “decrease” - that is, with the appropriate settings of the device, the LEDs will function in a similar way when the measured parameter becomes less than the setting, for example, first less than the first setpoint, then less than the second setpoint. In this case, on the scales shown in Figs. 1-6, the zone “norm” can be, respectively, in the range of values from 100 to 80 A, the zone “warning” in the range of values from 80 to 50 A, and the zone “accident” in the range of values is from 50 and 0 A. In addition, in the implementation of the utility model, rows of LEDs in the form of parallel straight lines with an appropriate linear scale, LEDs having different glow colors, different numbers and other settings can be used. In the first and second row, LEDs of the same size can be used as shown in the attached drawings - in this case, a double increase in the area of the luminescence of the pointer in the zone where the parameter goes beyond the border defined by the setting will be realized. However, it is understood that, depending on the requirements and the specifics of the measurements, LEDs of different sizes can be used.

Claims (5)

1. The reading device of the measuring device having a scale with an LED indicator formed by the first row of colored LEDs and the second row of colored LEDs located along the first row of LEDs, and the LEDs are made with the ability to change the color of the glow when the measured parameter goes beyond the value zone defined by the first setting , characterized in that the second row of LEDs has an independent switching circuit, ensuring the inclusion of only those second row LEDs that are located along the switched on LEDs of the first row outside the range of values, the boundary of which is determined by the first setting, and the turned on LEDs of the second row have the same glow color as the turned on LEDs of the first row. 2. The reading device according to claim 1, characterized in that the first row of LEDs is additionally configured to change the color of the glow when the measured parameter goes beyond the boundary of the value zone defined by a second setpoint other than the first setpoint, while the switching circuit of the second row of LEDs enables only those second-row LEDs that are located along the turned on LEDs of the first row outside the range of values, the boundary of which is determined by the second setting, and the LEDs of the second row have the same glow color as the first row of LEDs on. 3. The reading device according to claim 2, characterized in that the first and second row of LEDs contain constantly on LEDs to display the settings. 4. The reading device according to any one of claims 1 to 3, characterized in that it further comprises an LED digital pointer. 5. The reading device according to any one of claims 1 to 4, characterized in that the rows of LEDs are made in the form of arcs of concentric circles or in the form of parallel straight lines.

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