JPH01166097A - Display of instrument - Google Patents

Abstract

PURPOSE: To manage recorders and perform centralized control by displaying single data by channels and common data on a display screen in digital/analog combinational mode according to selective switching operation. CONSTITUTION: When measurement inputs are taken in an input part from outside as to respective channels, the measurement inputs are outputted to an A/D conversion part 3 selectively through a switching part 2 and converted into a digital signal. This digital signal is stored in a storage part 5 after format arithmetic operation by a processing part 4. According to the processing result of the processing part 3, the driving of a recording pen 9 and a printing element 10 is controlled and data are recorded, channel by channel. On the display screen 7a of a display part 7 at this time, a desired display mode, i.e., data displays by the channels and a data display common to the channels are made as a digital/analog combined display according to key operation at an operation part 8. Consequently, the mode is switched to the desired display mode and various data can be displayed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to, for example, temperature, flow rate, etc., which are taken in for each channel of a plurality of input terminals provided in a device such as an indicating controller or a recorder. The present invention relates to a display device for instruments that performs various displays including the display of external measurement input values corresponding to pressure and the like.

[Prior Art] Taking a recorder as an example of a display device, the recorder takes in external measurement inputs (analog signals) such as temperature, flow rate, pressure, etc. from input terminals corresponding to the number of channels of the device. The data is processed for each channel by performing predetermined signal processing on each external measurement input, and the recorded data is printed on recording paper using the recording pen and dot pen provided for each channel. ing. Then, on the display screen of the display unit installed at the top of the device main body, data for one channel of the signal-processed data of each channel is displayed, such as the channel number, the position of the recording pen on the recording paper, and the measurement input. Values, etc. are displayed by the operator's key operations.

[Problems to be Solved by the Invention] However, in the conventional display device described above, only one channel of data can be displayed on the display screen of the display unit. However, the above-mentioned display formats could not accommodate this.

Additionally, some devices are equipped with a mode that allows channel data to be displayed by changing the channel number at regular intervals; however, in this case, the operator must press keys to display the data of the desired channel. However, as the number of channels on the device increases and the number of measurement inputs increases, the number of key operations increases, resulting in the problem that it takes a considerable amount of time and effort to display the desired display, making it impossible to perform efficient measurements. Ta.

The present invention has been made in view of the above-mentioned problems, and its purpose is to instantly switch between displaying various types of data for each channel or displaying common data for all channels depending on the state. To provide a display device for instruments in which data for each channel and the overall trend of a plurality of channels can be easily recognized and confirmed on a display screen, and desired display can be performed without much effort.

[Means for Solving the Problems] In order to achieve the above object, the instrument display device according to the present invention is an instrument that displays various types of data based on measurement inputs taken in from a plurality of channels on a display screen. In a type of display device, the single data of each channel and the common data of each channel are displayed on the display screen by a combined digital and analog display based on a selective switching operation. It is characterized by its composition.

[Function] Each data that is supplied to each channel from the outside and undergoes signal processing is displayed as single data for each channel or common data for each channel using a combination of digital and analog display based on selective switching operations. is made on the display screen.

[Embodiment] Fig. 1 is a block diagram showing an embodiment of a display device for instruments according to the present invention, and Fig. 2(a).

(b) and (c) are diagrams showing various display forms displayed on the display section of the device.

Note that this embodiment will be explained using a recorder as an example of the meter.

In this embodiment, the recorder constituting the display device includes an input section 1, a switching section 2, an A/D conversion section 3, a processing section 4, and a storage section 5.
, a display control section 6, a display section 7, and an operation section 8, performs predetermined signal processing on measurement inputs taken in from multiple channels (four channels in the example), and writes the results for each channel. The single data of the channel and the common data of each channel are displayed by a combined digital and analog display based on selective switching operations.

The input section 1 is composed of input terminals consisting of a plurality of channels that receive measurement inputs such as temperature, flow rate, and pressure supplied from the outside.

The switching section 2 selectively switches the measurement input of each channel taken into the input section 1 and outputs it to the A/D conversion section 3.

The A/D converter 3 takes in measurement inputs supplied via the switching part 2 in a sequential or simultaneous way and converts them into digital signals. Further, this A/D converted signal is output to the processing section 4 via an insulating means (not shown) for noise removal or the like.

The processing section 4 performs format calculation processing such as linearization, scaling, and dimensioning of the digital signal supplied via the A/D conversion section 3. This formatted data is stored in the RA that constitutes the storage unit 5.
The information is stored in a predetermined area of M. Further, based on the processing results, the driving of the recording ben 9 and the dotting element 10 provided corresponding to each channel is controlled, and data is recorded on the recording paper 11 for each channel.

Note that the storage section 5 includes a ROM that stores programs and the like for performing arithmetic and control processing on the digital signals supplied via the A/D conversion section 3 in the processing section 4 .

The display control section 6 displays the data stored in the storage section 5 on the display section 7.
Processing for displaying on the display screen 7a is being performed.

The display section 7 performs various digital/analog displays based on the data of each channel according to the processing results of the display control section 6. Further, to explain in detail the various display formats displayed on the display screen 7a of the display unit 7, first, the first display format is similar to the conventional display device as shown in FIG. 2(a). Data display for a single channel,
That is, various data such as the channel number, the position of the recording pen on the recording paper, and the measured input value are displayed. Furthermore, as a second display form, a plurality of digital displays of data indicating the measurement estimates of each of a plurality of channels as shown in FIG. 2(b) are performed. Furthermore, as a third display form, Fig. 2 (C)
Analog display is simultaneously performed using bar graphs on a plurality of sides showing the positions of recording pens 9 provided corresponding to a plurality of channels on the recording paper 11 as shown in FIG. In this way, the display section 7 displays data for a single channel of each channel as shown in FIG. 2(a), digital measurement values for each channel as shown in FIG. Common data for each channel in the bar graph display is displayed using a mixed display that combines digital and analog.

The operating section 8 is provided on the front surface of the panel 12 of the recorder, and includes a plurality of key switches 13, and initial settings, various parameter settings, etc. are performed by key operations. Further, in this operation section 8, switching of the display form displayed on the display screen 7a of the display section 7 described above is similarly performed by key operations.

Next, the operation of the above-described configuration will be explained.

When external measurement input is input to each channel into input section 1, this measurement input is selectively transferred to A/D by switching section 2.
The signal is output to the converter 3 and converted into a digital signal. This digital signal is subjected to format calculation processing in the processing section 4 and then stored in the storage section 5. And processing section 4
The driving of the recording pen 9 and dot stylus 10 is controlled based on the processing results, and data is recorded for each channel. Also, at this time, on the display screen 7a of the display unit 7,
By switching based on key operations on the operation unit 8, a desired display format, that is, data display for each channel or data common to each channel is performed.

Therefore, on the display screen 7a of the recorder described above, data display for each channel or data common to each channel can be selectively switched by simple key operation, so that the operator can select the desired display format. You can display various data by switching to .

By the way, in the embodiment described above, when displaying common data for each channel, only the digital display of the measured input value or the analog display using a bar graph indicating the position of the recording pen 9 on the recording paper 11 is displayed. However, if the display screen 7a can be made large, the above-mentioned digital display and analog display may be performed on the same screen. In addition, Fig. 2 (a) -
It is also possible to perform various mixed displays that combine the display formats in (c).

Furthermore, in the above embodiments, a recorder was used as an example of the display device, but the display device is not limited to this, and can also be applied to devices that display various data in digital or analog form based on multiple measurement inputs, such as an indicating controller. Can be applied.

[Effects of the Invention] As explained above, according to the instrument display device of the present invention, single data for each channel and common data for each channel can be selectively switched. Since the display screen is configured to display a combination of digital and analog data based on the above, the display form of data display for each channel or data common to each channel can be switched arbitrarily and instantaneously depending on the state. Especially when displaying data common to each channel,
Since the trend of the entire channel can be easily recognized and confirmed on the display screen, it can be effectively used when managing and centrally controlling a plurality of recorders.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a display device for instruments according to the present invention, and FIG. 2(a) is a block diagram showing an embodiment of a display device for instruments according to the present invention. (b) and (C) are diagrams showing various display forms displayed on the display section of the device. 6...Display control unit, 7...Display unit, 7a...Display screen, 8...Operation unit. Patent applicant: Chino Co., Ltd. Agent/patent attorney Norimitsu Nishimura

Claims (1)

[Claims] In an instrument display device that displays various types of data based on measurement inputs taken in from a plurality of channels on a display screen, the single data of each channel is displayed based on a selective switching operation. and the common data of each channel are displayed on the display screen using a combination of digital and analog display.