CN104154977A - Weighing instrument - Google Patents
Weighing instrument Download PDFInfo
- Publication number
- CN104154977A CN104154977A CN201410426869.2A CN201410426869A CN104154977A CN 104154977 A CN104154977 A CN 104154977A CN 201410426869 A CN201410426869 A CN 201410426869A CN 104154977 A CN104154977 A CN 104154977A
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- China
- Prior art keywords
- central processing
- weighing instrument
- module
- processing element
- processing chip
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Abstract
The invention discloses a weighing instrument, and relates to the technical field of petrochemicals, the chemical industry, and building material instrument and meter manufacturing. The weighing instrument comprises a central processing chip, wherein a digital and analog conversion module, a man-machine interface module and a synchronous dynamic random storage module are connected with the central processing chip, and a programmable logic module with a monitor program is further connected with the central processing chip. The weighing instrument can solve the problem that when crash of a system of a weighing instrument happens by accident, an output channel cannot be closed in time, the weighing instrument cannot be automatically restarted in time, and faults are prone to being caused.
Description
Technical field
The present invention relates to petrochemical industry, chemical industry, building materials instrument and meter manufacturing technology field, especially a kind of weighing instrument for weigh.
Background technology
Current weighing instrument is all generally by load module, memory module, and the compositions such as processing module, are solidificated in electrical control program and execution flow process in internal storage, and when work, the program of Automatically invoked inside realizes predetermined function.Such working method exists a problem, when there is unexpected deadlock in the system of weighing instrument, can not close in time output channel and autoboot, if staff can not find in time, now, material is also constantly being exported by output channel, will cause material to overflow the volume of splendid attire, if material is poisonous or inflammable and explosive material, the generation very easily causing the accident.
Summary of the invention
The object of this invention is to provide a kind of weighing instrument, it can solve when unexpected deadlock appears in the system of weighing instrument, can not close in time output channel and autoboot, the problem that easily causes the accident and occur.
In order to address the above problem, the technical solution used in the present invention is: this weighing instrument, comprises central processing element; D/A switch module, human-machine interface module, synchronous dynamic random memory module is all connected with described central processing element; The programmed logical module that is provided with in addition watchdog routine being connected with described central processing element.
In technique scheme, more specifically scheme can also be: described central processing element is field programmable gate array, on described central processing element, is provided with SOC (system on a chip).
Owing to having adopted technique scheme, the present invention compared with prior art, the beneficial effect having is: owing to being provided with the programmed logical module of watchdog routine, so when there is unexpected deadlock in the system of weighing instrument, can close in time output channel, while is restarting systems in time, and this has just been avoided the generation of accident.
Accompanying drawing explanation
Fig. 1 is block diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described: the weighing instrument shown in Fig. 1, LOAD CELLS 6 is connected with the input end of D/A switch module 2, D/A switch module 2 converts analog quantity to central processing element 1 that digital signal is input to the field programmable gate array that is provided with SOC (system on a chip), signal after central processing element 1 is processed is sent to the programmed logical module 5 that is provided with watchdog routine, and output to gauge tap from the delivery outlet of programmed logical module 5, by gauge tap, remove to control corresponding solenoid valve, simultaneously, the input port of programmed logical module 5 receives charging basket position sensor signal, the feedback signal of level sensor signal and gauge tap, and these signals are sent to central processing element 1 process.Central processing element 1 can carry out man-machine conversation with staff by human-machine interface module 3; Synchronous dynamic random memory module 4 is connected with central processing element 1, and central processing element 1 can be transferred corresponding program or storage data from synchronous dynamic random memory module 4 at any time.When programmed logical module 5 monitors system in case of system halt, can close in time output channel, thereby closing control switch starts and restarts restart routine system simultaneously.This has just been avoided because of the system accidents caused generation of surprisingly crashing.
Claims (2)
1. a weighing instrument, comprises central processing element; D/A switch module, human-machine interface module, synchronous dynamic random memory module is all connected with described central processing element; It is characterized in that: the programmed logical module that is provided with in addition watchdog routine being connected with described central processing element.
2. weighing instrument according to claim 1, is characterized in that: described central processing element is field programmable gate array, on described central processing element, is provided with SOC (system on a chip).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426869.2A CN104154977A (en) | 2014-08-27 | 2014-08-27 | Weighing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410426869.2A CN104154977A (en) | 2014-08-27 | 2014-08-27 | Weighing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154977A true CN104154977A (en) | 2014-11-19 |
Family
ID=51880541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410426869.2A Pending CN104154977A (en) | 2014-08-27 | 2014-08-27 | Weighing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154977A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004058A (en) * | 1990-03-27 | 1991-04-02 | Cardinal Scale Manufacturing Company | Weigh scale using multiple digital load cells |
| CN2365654Y (en) * | 1999-03-24 | 2000-02-23 | 马正方 | Diet nutrient electronic weighing apparatus |
| CN2743807Y (en) * | 2004-10-22 | 2005-11-30 | 上海大华电子秤厂 | Barcode information managing printing electronic scale |
| CN2904149Y (en) * | 2005-12-23 | 2007-05-23 | 上海大华电子秤厂 | Network weighing controller |
| CN102087137A (en) * | 2010-10-21 | 2011-06-08 | 北京东方瑞威科技发展有限公司 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
| CN202110437U (en) * | 2011-07-04 | 2012-01-11 | 徐州工程学院 | Real-time status monitoring device for garbage transport vehicles |
| CN202661149U (en) * | 2012-02-29 | 2013-01-09 | 东莞市启康数码科技有限公司 | Multimedia electronic scale |
-
2014
- 2014-08-27 CN CN201410426869.2A patent/CN104154977A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004058A (en) * | 1990-03-27 | 1991-04-02 | Cardinal Scale Manufacturing Company | Weigh scale using multiple digital load cells |
| CN2365654Y (en) * | 1999-03-24 | 2000-02-23 | 马正方 | Diet nutrient electronic weighing apparatus |
| CN2743807Y (en) * | 2004-10-22 | 2005-11-30 | 上海大华电子秤厂 | Barcode information managing printing electronic scale |
| CN2904149Y (en) * | 2005-12-23 | 2007-05-23 | 上海大华电子秤厂 | Network weighing controller |
| CN102087137A (en) * | 2010-10-21 | 2011-06-08 | 北京东方瑞威科技发展有限公司 | Embedded rail weighbridge weighing system with unbalanced load detecting function |
| CN202110437U (en) * | 2011-07-04 | 2012-01-11 | 徐州工程学院 | Real-time status monitoring device for garbage transport vehicles |
| CN202661149U (en) * | 2012-02-29 | 2013-01-09 | 东莞市启康数码科技有限公司 | Multimedia electronic scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |
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| RJ01 | Rejection of invention patent application after publication |