JPH051889B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device that performs real-time recording. More specifically, the present invention relates to a recording device that can display input signals in real time using a CRT and record multiple input signals in a state close to real time using a pen-exchangeable multicolor recording mechanism. .

[Conventional technology]

Generally, a recording device having a storage function has a real-time mode and a trend mode as modes for recording captured input data. Real-time mode sends the captured input data as is to the recording section and records it in real time, and trend mode is
The captured input data is temporarily stored in a memory, and then the contents of the memory are read out at once to record the waveform of the input signal within a single period of time.

[Problem that the invention seeks to solve]

However, in such a recording device,
If this recording mechanism is a pen-exchangeable multi-color recording mechanism, the time required to exchange the pens will delay the tracking of the recording operation, making it impossible to obtain real-time information.

The present invention eliminates the drawbacks of the conventional device as described above, and can record multiple input signals in a state close to real time using a pen-exchangeable multicolor recording mechanism. The purpose of this project is to realize a recording device that can monitor real-time information using a CRT with a simple design.

[Means for solving problems]

The recording device of the present invention has a CRT display section and a pen-replaceable multicolor recording mechanism section, and sequentially converts a plurality of input signals into digital signals and captures them. In a recording device that displays and records a
and a second memory portion, and a CRT display section that displays captured input data on a CRT in real time;
A recording unit that reads out all input data stored in the memory part in which a write operation is not currently performed among the two memory parts and records an input signal waveform corresponding to this input data. It is a device.

[Effect]

By configuring the recording device in this way, the input signal can be recorded in a state close to real time, and the real time state, which cannot be followed by the recording section, can be monitored by displaying on the CRT.

〔Example〕

Hereinafter, the recording apparatus of the present invention will be explained using the drawings.

The figure is a block diagram showing one embodiment of the recording apparatus of the present invention. In the figure, CPU is a microprocessor that controls various hydrochloric acid treatments and the operation of the entire device, MUL is a multiplexer that sequentially selects and takes in multiple input signals Sl to Sn, and AD is the input signals Sl to Sn taken in by multiplexer MUL. An analog-to-digital converter that converts the input data into digital input data, M1 and M2 are memory portions in which sequentially captured input data is written cyclically;
CCT is a display control circuit that controls the display of the CRT, MV is a video memory that causes the CRT to display input signals, etc., and RCT is a recording control circuit that controls the recording section REC. recording part
REC is a pen-replaceable multicolor recording mechanism.

In the recording device configured in this manner, input data sequentially taken in via the multiplexer MUL and the analog-to-digital converter AD is written into the memory portions M1 and M2. At this time, the order in which input data is written is cyclic, such that writing is first started from the first memory portion M1, and is written to the second memory portion M2 after the first memory portion M1 is full. become. Further, when the second memory portion M2 becomes full, the data is returned to the first memory portion M1 and writing is performed from the first address. In this way, the write position of input data circulates between the first and second memory portions M1, M2, and the memory portions M1, M2
The latest input data and input data up to a certain time ago are always stored.

Now, the display control circuit CCT receives the captured input data and displays the states of the input signals Sl to Sn on the CRT screen in real time. At this time, data necessary for display is stored in the video memory MV and refreshed as the display progresses. For example, when displaying the waveforms of the input signals Sl to Sn on a CRT screen as well as numbers indicating the peak values, the microprocessor CPU processes the input data.
Converts it to decimal numeric data and supplies it to the display control circuit CCT.

Further, the recording control circuit RCT reads the input data stored in the memory portions M1 and M2, and records the waveforms of the input signals Sl to Sn using the recording portion REC. At this time, the recording control circuit
RCT reads input data from a memory part that is not currently being written among memory parts M1 and M2.All data is read from one memory part M1 or M2, and recorded in multiple colors using the recording part REC. . It is a kind of trend record. For example, if writing is currently being performed on memory portion M2, the recording control circuit RCT reads the contents of memory portion M1,
Supply to the recording part REC. Furthermore, when writing is transferred to the memory portion M1, the contents of the memory portion M2 are read out and recorded. In this way, the recording control circuit RCT always reads the contents of the memory portion where writing has been completed, and records the input signals Sl to Sn in a state close to real time.

Here, as described above, if input data is read from the memory portions M1 and M2 for which writing has already been completed and recorded in the pen-replaceable recording portion REC, the data stored in the memory portions M1 and M2 will be Since the data of each channel can be recorded separately for each channel, all the input data recorded in the memory parts M1 and M2 can be recorded by exchanging the recording pen as many times as the number of channels. It is possible to reduce the number of times the recording pen is replaced and achieve high-speed recording operation.

Note that in the recording portion REC, the recording time for outputting all input data stored in one memory portion M1, M2 is longer than the recording time required for outputting all input data stored in one memory portion M1, M2.
The write time is selected to be shorter than the write time for M2. Further, in the above-described recording operation, it is necessary to exchange the recording pen as well as reciprocate along the time axis (feeding and returning the recording paper), and such operations are also controlled by the recording control circuit RCT. Furthermore, if you want to record characters such as channel numbers and dates in the recording section REC, these signals can be sent to the microprocessor.
It is supplied from the CPU to the recording control circuit RCT.

Thereafter, the above-described display and recording operations are repeated as the input signals Sl to Sn are taken in, and the input signals Sl to Sn are recorded from the recording portion REC, and the latest data is monitored by the CRT. In other words, the recording part REC is like a pen-replaceable multicolor recording mechanism, and the input signal
Even if there is some delay from Sl to Sn, the latest data until the waveform appears in the recording portion REC can be observed on the CRT screen.

Note that in the above description, the memory portions M1,
Although M2 is exemplified as an independent block, the memory portions M1 and M2 are not limited to this, and may be each allocated as a part of one memory. In addition, although the case where the input section is configured with the multiplexer MUL and the analog-to-digital converter AD is illustrated, the input section is not limited to this configuration. For example, the input section is not limited to this configuration. It may also be constructed from a digital converter.

〔Effect of the invention〕

As explained above, in the recording device of the present invention,
A recording device that has a CRT display section and a pen-replaceable multicolor recording mechanism section that sequentially converts multiple input signals into digital signals and captures them, and uses this input data to display and record the status of the input signals. , a first and second memory portion into which captured input data is cyclically written; a CRT display section which displays captured input data on a CRT in real time; Since it is configured to include a recording section that reads out all input data stored in the memory portion on which the write operation is not performed and records the input signal waveform corresponding to this input data,
It is possible to record multiple input signals in a state close to real time by using a multi-color recording mechanism that uses pen exchange, and it is also possible to monitor real-time information that cannot be expressed by the recording mechanism using a CRT. The recording device can be realized with a simple configuration.

[Brief explanation of drawings]

The figure is a block diagram showing one embodiment of the recording apparatus of the present invention. CPU...microprocessor, MUL...multiplexer, AD...analog/digital converter, M1, M2...memory section, CCT...display control circuit, MV...video memory,
RCT...recording control circuit, REC...recording section.

Claims (1)

[Claims] 1 A recording device that has a CRT display section and a pen-replaceable multicolor recording mechanism section that sequentially converts multiple input signals into digital signals and captures them, and uses this input data to display and record the status of the input signals. The device includes first and second memory portions into which the captured input data is written cyclically, and where the captured input data is written in real time.
Read out all input data stored in the CRT display section displayed on the CRT screen and the memory section that is not currently being written among the two memory sections, and output the input signal waveform corresponding to this input data. A recording device comprising a recording section that records separately for each channel.