CN104615029A - Digital measurement and control transmitter - Google Patents
Digital measurement and control transmitter Download PDFInfo
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- CN104615029A CN104615029A CN201410668300.7A CN201410668300A CN104615029A CN 104615029 A CN104615029 A CN 104615029A CN 201410668300 A CN201410668300 A CN 201410668300A CN 104615029 A CN104615029 A CN 104615029A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a digital measurement and control transmitter. The digital measurement and control transmitter comprises a shell, a CPU control module, a power sensor module, an AD sampling module, a DA conversion module, an alarm module, a communication module, a key module, a precise current output module and a precise voltage output module are arranged in the shell, the input end of the CPU control module is connected with the output end of the AD sampling module, the output end is connected with the input ends of the DA conversion module, alarm module, communication module and key module, and the input end of the AD sampling module is connected with the output end of the power sensor module; the input ends of the precise current output module and the precise voltage output module are connected with the output end of the DA conversion module; the digital measurement and control transmitter further comprises a power supply module and a PC display module located outside the shell. The digital measurement and control transmitter is capable of realizing modular circuit design and greatly lowering the cost of the whole circuit.
Description
Technical field
The invention belongs to check weighing system to detect and opertaing device, specifically a kind of multifunctional equipment integrating high accuracy number transmitter, controller, weight display instrument.
Background technology
Transmitter is a kind of equipment physical measurement signal or normal signal being converted to standard electric signal and exporting or can export in communications protocol mode.Traditional weight transmitter can only export analog quantity, can not reflect digital quantity intuitively, accurately.Again because the factor such as environment, temperature, humidity, often need a large amount of utility appliance to go measurements and calculations, just can obtain an approximate result.Simultaneously the use of some sensor needs to monitor constantly, and needing of also having exports controllable on-off model simultaneously.In order to more effectively sense data, also for solving Real-Time Monitoring and the observing and controlling problem of transmitter, the present invention proposes a kind of convenient for production, stable performance, observing and controlling transmitter that antijamming capability is strong.
Summary of the invention
The object of this invention is to provide a kind of can Width funtion power, can show in real time, high precision become send output, facilitate Based Intelligent Control, transmitter that antijamming capability has by force weighing instrument characteristic simultaneously.
Technical scheme of the present invention is as follows:
A kind of digital observing and controlling transmitter, comprise housing, CPU control module, force snesor module, AD sampling module, DA conversion module, alarm module, communication module, key-press module, precision current output module and accurate voltage output module is provided with in described housing, it is characterized in that: the input end of described CPU control module is connected with the output terminal of AD sampling module, its output terminal connects DA conversion module, the input end of alarm module, communication module, key-press module, the input end of described AD sampling module connects the output terminal of described force snesor module; Described precision current output module is connected the output terminal of described DA conversion module respectively with the input end of accurate voltage output module; Also comprise power module, described power module adopts Width funtion adjustment chip SX3002, to CPU control module and force snesor module for power supply; Also comprise the PC display module be positioned at outside housing, the output terminal of the input end connecting communication module of described PC display module.
Described communication module adopts RS232 or RS485 communication.
Described alarm module adopts relay or buzzer warning.
Also comprise power module, described power module is to CPU control module and force snesor module for power supply.
Described cpu controller adopts STC12C5A16AD, completes the transmission of data, conversion, and carries out master control to whole system.
Described AD conversion module adopts 24 modulus conversion chip CS5523, can input multi-signal, make the precision of controller own can reach ten thousand/.
Described DA conversion portion selects 16 analog-digital chip DAC8551, makes output accuracy to reach 2/10000ths.
The present invention adopts pressure transducer to make transmitter have the characteristic of weighing instrument; Power module adopts Width funtion adjustment chip SX3002, reduces temperature drift, makes transmitter setting range wide; Adopt DA conversion module in conjunction with precision current output module and accurate voltage output module, antijamming capability is strengthened, the conditions for equipment uses such as the frequency converter of industrial complexity, PLC can be applicable to; Adopt communication module to be connected with PC, make whole adjustment all on a PC interface, do not need same instrument equally to need to check and the content understanding instructions can operate, simple to operate, click five or six buttons at most.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of this digital observing and controlling transmitter.
Embodiment
As shown in Figure 1, a kind of digital observing and controlling transmitter, comprise housing 1, CPU control module 2 is provided with in described housing 1, force snesor module 3, AD sampling module 4, DA conversion module 5, alarm module 6, communication module 7, key-press module 8, precision current output module 9 and accurate voltage output module 10, the input end of described CPU control module 2 is connected with the output terminal of AD sampling module 4, its output terminal connects DA conversion module 5, alarm module 6, communication module 7, the input end of key-press module 8, the input end of described AD sampling module 4 connects the output terminal of described force snesor module 3, the output terminal of described DA conversion module 5 connects the input end of described precision current output module 9 and accurate voltage output module 10 respectively, also comprise power module 11, described power module 11 adopts Width funtion to adjust chip SX3002, to CPU control module 2 and force snesor mould 3 pieces power supply, also comprise the PC display module 12 be positioned at outside housing, the output terminal of the input end connecting communication module of described PC display module.
Described power module 11 adopts Width funtion to adjust chip SX3002, to CPU control module and force snesor module for power supply, coordinate a wire-wound inductor, two resistance proportionings, a diode and two electric capacity can realize 10 ~ 40V Width funtion to power input, 6 ~ 15V voltage stabilizing exports and makes circuit reduce by more than 20% than general analog transmitter in power consumption.
Described communication module 7 adopts RS232 or RS485 communication, meets the demand of different user.
Described alarm module 6 adopts two kinds of mode type of alarms: one is that relay exports (Chang Kai and normally closed all provide); One is use hummer and light emitting diode to realize acoustic alarm, light prompting.
Described CPU control module 3 adopts STC12C5A16AD, completes the transmission of data, conversion, and carries out master control to whole system.
Described AD acquisition module 4 adopts 24 modulus conversion chip CS5523, can input multi-signal, make the precision of controller own can reach ten thousand/.
Described D/A conversion module 5 selects 16 analog-digital chip DAC8551, makes output accuracy to reach 2/10000ths.
Timing signal, this digital observing and controlling transmitter has three kinds of demarcation modes.One, complete demarcation with key-press module 8; Two, use communication, complete demarcation with software; Three; One, 2 two kinds of modes are combined.If user just needs change to send output signal, the fastest by first kind of way.First demarcate zero point, then nominal gain, can find out, whole calibration process is easy to adjust, uses two buttons to adjust, digital conversion, without analog regulation parts such as potentiometers, greatly reduces the temperature drift of analog output.If user just needs real-time Presentation Function, utilize communication, most suitable by the second way.
Claims (6)
1. a digital observing and controlling transmitter, comprise housing, CPU control module, force snesor module, AD sampling module, DA conversion module, alarm module, communication module, key-press module, current output module and voltage output module is provided with in described housing, it is characterized in that: the input end of described CPU control module is connected with the output terminal of AD sampling module, its output terminal connects DA conversion module, the input end of alarm module, communication module, key-press module, the input end of described AD sampling module connects the output terminal of described force snesor module; Described precision current output module is connected the output terminal of described DA conversion module respectively with the input end of accurate voltage output module; Also comprise power module, described power module adopts Width funtion adjustment chip SX3002, to CPU control module and force snesor module for power supply; Also comprise the PC display module be positioned at outside housing, the output terminal of the input end connecting communication module of described PC display module.
2. digital observing and controlling transmitter according to claim 1, is characterized in that: described communication module adopts RS232 or RS485 communication.
3. digital observing and controlling transmitter according to claim 1, is characterized in that: described alarm module adopts relay or buzzer warning.
4. digital observing and controlling transmitter according to claim 1, is characterized in that: described cpu controller adopts STC12C5A16AD.
5. digital observing and controlling transmitter according to claim 1, is characterized in that: described AD conversion module adopts 24 modulus conversion chip CS5523.
6. digital observing and controlling transmitter according to claim 1, is characterized in that: described DA conversion portion adopts 16 analog-digital chip DAC8551.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668300.7A CN104615029A (en) | 2014-11-20 | 2014-11-20 | Digital measurement and control transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668300.7A CN104615029A (en) | 2014-11-20 | 2014-11-20 | Digital measurement and control transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104615029A true CN104615029A (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668300.7A Pending CN104615029A (en) | 2014-11-20 | 2014-11-20 | Digital measurement and control transmitter |
Country Status (1)
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| CN (1) | CN104615029A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330113Y (en) * | 1998-05-15 | 1999-07-21 | 北京市中山新技术设备研究所 | Digital weighing transmitter |
| CN201331406Y (en) * | 2008-12-02 | 2009-10-21 | 西安中星测控有限公司 | Intelligent pressure transmitter |
| CN101620247A (en) * | 2009-07-24 | 2010-01-06 | 中山市东崎电气有限公司 | Electric power intelligent display control transmitter |
| CN102305653A (en) * | 2011-05-19 | 2012-01-04 | 江苏红光仪表厂有限公司 | Wireless industrial liquid level transmitter |
| CN204287835U (en) * | 2014-11-20 | 2015-04-22 | 蚌埠天光传感器有限公司 | Digital observing and controlling transmitter |
-
2014
- 2014-11-20 CN CN201410668300.7A patent/CN104615029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330113Y (en) * | 1998-05-15 | 1999-07-21 | 北京市中山新技术设备研究所 | Digital weighing transmitter |
| CN201331406Y (en) * | 2008-12-02 | 2009-10-21 | 西安中星测控有限公司 | Intelligent pressure transmitter |
| CN101620247A (en) * | 2009-07-24 | 2010-01-06 | 中山市东崎电气有限公司 | Electric power intelligent display control transmitter |
| CN102305653A (en) * | 2011-05-19 | 2012-01-04 | 江苏红光仪表厂有限公司 | Wireless industrial liquid level transmitter |
| CN204287835U (en) * | 2014-11-20 | 2015-04-22 | 蚌埠天光传感器有限公司 | Digital observing and controlling transmitter |
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Application publication date: 20150513 |
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| RJ01 | Rejection of invention patent application after publication |