CN2287745Y - Intelligent displaying and recording instrument - Google Patents
Intelligent displaying and recording instrument Download PDFInfo
- Publication number
- CN2287745Y CN2287745Y CN 97205927 CN97205927U CN2287745Y CN 2287745 Y CN2287745 Y CN 2287745Y CN 97205927 CN97205927 CN 97205927 CN 97205927 U CN97205927 U CN 97205927U CN 2287745 Y CN2287745 Y CN 2287745Y
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- cpu
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- data storage
- storage device
- utility
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Abstract
The utility model provides an intelligent displaying and recording instrument, which is composed of a signal collector, an analog-to-digital converter, a data storage device, a display device, a control circuit, a power circuit, an operation key (3) and a casing (5). The utility model is characterized in that the data storage device comprises a flexible disk memory (4), the display device is provided with a chromatic CRT displaying (1), the system forms into a multiple CPU structure, and the utility model has the advantages of directing display, multiple ways, simultaneous acquisition and multi-signal processing, convenient storage and query, high precision, high speed, good real-time property, convenient use and maintenance, etc.
Description
The utility model belongs to the industrial electronic field of instrumentation technology, particularly a kind of intelligent display registering instrument of being made up of signal pickup assembly, A/D converter, data storage device, display device, control circuit, power circuit, operating key, shell.
At present, enterprises such as power plant, petrochemical plant, metallurgy use pointer display instrument in a large number, have the paper registering instrument to monitor ruuning situation.Chinese patent discloses a kind of " the novel intelligent display with computing function " (patent No. is ZL93232802.4) by name recently, hereinafter to be referred as single-minded.A kind of " intelligent digital display recorder " (patent No. is ZL93240028.0) also disclosed, hereinafter to be referred as special two.The purpose of these two kinds of patents is too huge for solving existing instrument dial plate, is not easy to the operations staff and monitors, and low precision, poor reliability, shortcoming such as fragile.But single-minded, special two all adopt the charactron display to show that mode is single, and input signal is less.Single-mindedly be made up of digital circuit, do not contain CPU, the treatable function of institute is limited, and speed is slow.And special two also only have a CPU.Single-minded can only the storage to aggregate-value, but can not store instantaneous value; Special two is to utilize recording chart that data are stored, very inconvenience of inquiry and storage, and will waste a large amount of paper every year, also is not easy to the long preservation data.
The purpose of this utility model is at the deficiencies in the prior art, and design a kind of multi-way intelligence display recorder, it has the display mode variation, fills many kinds of signal inputs, and range and unit can set respectively, can also carry out multiple calculation process to nonlinear properties.Can carry out data storage, demonstration, inquiry easily, put in order and gather, and be convenient to long preservation.Its precision height, speed is fast, real-time good, cost is low.
The purpose of this utility model is achieved through the following technical measures: be made up of signal pickup assembly, A/D converter, data storage device, display device, control circuit, power circuit, operating key and shell.It is characterized in that: data storage device contains diskette storage and has the high capacity SRAM of power down protection as storage inside.Display device adopts the color CRT display, shows intuitive display, clear, accurate with variation.
The utility model adopts multi-CPU structure, comprises data processing and central management CPU, data recording CPU and display process CPU.All CPU are one-chip computer, adopt I between CPU
2The C communication bus.Like this, pass data and order in the instrument between the each several part mutually, co-ordination become an organic whole, and cost is lower.Data storage device by multichannel (16-64 road) sample circuit and with it the high-precision a/d converter of way correspondence form.Be convenient to acquisition process multiple signals simultaneously like this, can be set at thermopair, thermal resistance, dc voltage and the input of DC electric current according to actual needs.Signals collecting precision height (can reach 0.1%～0.01%), operational efficiency height, speed is fast, real-time good, failure rate is low.
Principle of work of the present utility model is at first, to set each road signal type, range, collection period etc. as required in instrument.After putting into operation, host CPU is gathered the industrial signal of this instrument of input by the photoelectricity buffer data acquisition equipment (comprising amplifier, A/D converter, multi-channel switch etc.) that is attached thereto.According to the signal properties of having set, host CPU carries out conversion process to adopting into signal, draws actual measured value.Simultaneously, host CPU deposits the measured value of gathering in the machine internal memory at any time.Then, according to the show state of setting, host CPU is to showing that CPU sends corresponding display command and data, after showing that CPU receives, form display graphics through handling, by emulation ISA8 position bus slot control criterion VGA display card, output pattern and character signal on color monitor.The exterior storage process is: the standard flexible plastic disc is inserted this instrument, press the corresponding function key, host CPU will send the deposit instruction to data recording CPU, after data recording CPU takes orders, to the host CPU request msg, after treatment, by emulation ISA8 position assembly slot control FDC (floppy disk controller), deposit the internal storage data in flexible plastic disc.
Compared with the prior art the utility model has following advantage:
1, adopt color CRT to show, intuitive display, clear, accurate, display format is diversified (numeral, curve, rod figure, filling), and is easy to use.
2, multiple signals can be handled simultaneously, multiple processing can be carried out the input data, and acquired signal precision height.
3, adopt flexible plastic disc big as recording medium, capacity, storage and inquiry are convenient, and are convenient to long preservation, simultaneously, provide functions such as backing up and duplicate.
4, modularization and multi-CPU structure, inside is detected automatically, and function is strong, reliability is high, travelling speed is fast, efficient is high, real-time is good, failure rate is low, cost is low, be convenient to maintenance.
But 5, each parameter of instrument long preservation after setting, no matter whether power end powers up for a long time, simultaneously, clock keeps normal operation when not powering.
6, have communication interface, be convenient to unified management and inquiry.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the utility model instrument outside drawing;
Fig. 2 is the utility model system construction drawing;
Fig. 3 is the utility model embodiment Acquisition Circuit synoptic diagram;
With reference to Fig. 1, color CRT display (1) is contained in the shell (5), and front panel (2) top of shell (5) is color CRT (a 1) display screen, and the below is operating key (3) and floppy disk driver (4).
With reference to Fig. 2, according to the function of instrument as can be known, instrument should comprise a plurality of parts such as data acquisition and processing, figure and character processing and demonstration, the deposit of instrument record, instrument coordinated management, and biography data and order mutually, co-ordination become an organic whole between the each several part.Adopt novel multi-CPU structure design,, finish the allomeric function of instrument in conjunction with new device and technology such as communications between dual port RAM, CPU.Wherein primary processor CPU adopts the 87C654 8-bit microcontroller that PHILIPS company produces, and display process and disk are handled CPU employing 87C652 8-bit microcontroller.
With reference to Fig. 3, MAX187 (TC1) is 12 A/D change-over circuits of serial line interface, and interior band sampling keeps and reference source.MAX396 (IC2, IC3) is that 16: 1 multichannels are switched electronic switch, constitutes 32 jointly with IC4 (74HC04) and selects 1 electronic switch.P
2(20PIN) be and main circuit gang socket.Corresponding each input end of MAX396 (I01～I016 * 2), circuit has 32 of general isolated amplifiers in addition.
The instrument of this structure adopts multi-module structure, and each module is responsible for part work, and the relation between coordinating separately by central module.
Claims (5)
1, a kind of intelligent display registering instrument, form by signal pickup assembly, A/D converter, data storage device, display device, control circuit, power circuit, operating key (3), shell (5), it is characterized in that data storage device contains diskette storage (4), display device adopts color CRT display (1).
2, according to the described intelligent display registering instrument of claim 1, it is characterized in that set of systems becomes multi-CPU structure, comprise data processing and central management CPU, data recording CPU, display process CPU.
3, according to claim 1 or 2 described intelligent display registering instruments, it is characterized in that signal pickup assembly by multichannel (16-64 road) sample circuit and with it the multichannel of way correspondence (16-64 road) high-precision a/d converter constitute.
4,, it is characterized in that data storage device comprises that the high capacity SRAM with power down protection is as storage inside according to claim 1 or 2 described intelligent display registering instruments.
5,, it is characterized in that all CPU are one-chip computer, adopt I between CPU according to the described intelligent display registering instrument of claim 2
2The C communication bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205927 CN2287745Y (en) | 1997-01-22 | 1997-01-22 | Intelligent displaying and recording instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205927 CN2287745Y (en) | 1997-01-22 | 1997-01-22 | Intelligent displaying and recording instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2287745Y true CN2287745Y (en) | 1998-08-12 |
Family
ID=33926046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205927 Expired - Fee Related CN2287745Y (en) | 1997-01-22 | 1997-01-22 | Intelligent displaying and recording instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2287745Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327375C (en) * | 2003-08-22 | 2007-07-18 | 杭州盘古自动化系统有限公司 | Device and method for backing data from instrument to CF card |
-
1997
- 1997-01-22 CN CN 97205927 patent/CN2287745Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327375C (en) * | 2003-08-22 | 2007-07-18 | 杭州盘古自动化系统有限公司 | Device and method for backing data from instrument to CF card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |