CN206249053U - A kind of Multi-path proportional Weighing control appliance circuit - Google Patents
A kind of Multi-path proportional Weighing control appliance circuit Download PDFInfo
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- CN206249053U CN206249053U CN201621294261.XU CN201621294261U CN206249053U CN 206249053 U CN206249053 U CN 206249053U CN 201621294261 U CN201621294261 U CN 201621294261U CN 206249053 U CN206249053 U CN 206249053U
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Abstract
The utility model discloses a kind of Multi-path proportional Weighing control appliance circuit,Including multiple-channel output isolated form DC/DC conversion modules,ARM embedded systems,Multi-channel A/D sampling module,8 railway digital isolation input modules,20 railway digital isolation and amplifier modules,RS232/RS485 communication modules,Described ARM embedded systems connect multiple-channel output isolated form DC/DC conversion modules respectively,Multi-channel A/D sampling module,8 railway digital isolation input modules,20 railway digital isolation and amplifier modules and RS232/RS485 communication modules,Multiple-channel output isolated form DC/DC conversion modules are also connected with multi-channel A/D sampling module and RS232/RS485 communication modules,A kind of Multi-path proportional Weighing control appliance circuit of the present utility model can improve the integrated level of Weighing control instrument,Stability and system conformance,The cost of system composition is reduced simultaneously.
Description
Technical field
The utility model is related to a kind of Weighing control instrument, and more specifically, more particularly to a kind of Multi-path proportional is weighed control
Appliance circuit processed.
Background technology
At present, in the market single channel/two-way Weighing control instrument control speed and precision are all fine and very general
And.But in the case where some packaging tasks weight, time are more urgent, it is necessary to many instrument work just with many machines simultaneously
Can complete.At this moment, every parameter disunity of instrument, networking is complicated, and existence and stability is poor, cumbersome, level of integrated system is low
The shortcomings of, the storage for being difficult to many machines is especially even more when hall space is limited, and operation cost is higher.Cause
This, it would be highly desirable to utility model is a kind of can simultaneously to control many control devices of instrument.
Utility model content
The purpose of this utility model is to provide a kind of Multi-path proportional Weighing control appliance circuit, Weighing control instrument electricity
Road can improve integrated level, stability and the system conformance of Weighing control instrument, while reducing the cost of system composition.
The technical solution adopted in the utility model is as follows：
A kind of Multi-path proportional Weighing control appliance circuit, wherein, including multiple-channel output isolated form DC/DC conversion modules, ARM
Embedded system, multi-channel A/D sampling module, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules, RS232/
RS485 communication modules, described ARM embedded systems connect multiple-channel output isolated form DC/DC conversion modules, multi-channel A/D and adopt respectively
Egf block, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules and RS232/RS485 communication modules, described is more
Road output isolated form DC/DC conversion modules are also connected with multi-channel A/D sampling module and RS232/RS485 communication modules, the multi-channel A/D
The signal output part of the multiple outside weighing sensors of signal input part connection of sampling module.
Compared with prior art, the utility model have the advantage that for：
1. a kind of Multi-path proportional Weighing control appliance circuit of the present utility model, including multiple-channel output isolated form DC/DC becomes
Mold changing block, ARM embedded systems, multi-channel A/D sampling module, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules,
RS232/RS485 communication modules, described ARM embedded systems connect multiple-channel output isolated form DC/DC conversion modules, many respectively
Road AD sampling module, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules and RS232/RS485 communication modules are more
Road output isolated form DC/DC conversion modules are also connected with multi-channel A/D sampling module and RS232/RS485 communication modules, multi-channel A/D sampling
The signal output part of the multiple outside weighing sensors of signal input part connection of module.Realized by modeled programming suitable
In the function that 1 Weighing control instrument replaces being realized using 6 Weighing control instrument on the market, the Weighing control appliance circuit energy
Integrated level, stability and the system conformance of Weighing control instrument are enough improved, while reducing the cost of system composition.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is the circuit theory diagrams of the utility model multiple-channel output isolated form DC/DC conversion modules；
Fig. 3 is the circuit theory diagrams of the utility model ARM embedded systems；
Fig. 4 is the circuit theory diagrams of the railway digital isolation input module of the utility model 8 and RS232/RS485 communication modules；
Fig. 5 is the circuit theory diagrams of the utility model multi-channel A/D sampling module；
Fig. 6 is the circuit theory diagrams of the single AD sampling modules of the utility model；
Fig. 7 is the circuit theory diagrams of the railway digital isolation and amplifier module of the utility model 20；
Fig. 8 is the connection figure of the utility model ARM embedded systems；
Fig. 9 is the control flow chart of the utility model control instrument circuit.
Specific embodiment
With reference to specific embodiment, the technical solution of the utility model is described in further detail, but not structure
Paired any limitation of the present utility model.
As shown in Fig. 1 to Fig. 8 a kind of Multi-path proportional Weighing control appliance circuit of the present utility model, wherein, including multichannel is defeated
Go out isolated form DC/DC conversion modules 1, ARM embedded systems 2, multi-channel A/D sampling module 3,8 railway digital isolation input modules 4,20
Railway digital isolation and amplifier module 5, RS232/RS485 communication modules 8, described ARM embedded systems 2 connect multiple-channel output respectively
Isolated form DC/DC conversion modules 1, multi-channel A/D sampling module 3,8 railway digital isolation input modules 4,20 railway digital isolation and amplifier moulds
Block 5 and RS232/RS485 communication modules 8, described multiple-channel output isolated form DC/DC conversion modules 1 are also connected with multi-channel A/D sampling
Module 3 and RS232/RS485 communication modules 8, the multiple outside biographies of weighing of signal input part connection of the multi-channel A/D sampling module 3
The signal output part of sensor.Realize that a kind of Multi-path proportional of the present utility model equivalent to 1 is weighed by modeled programming
The function that control instrument circuitry instead is realized using 6 Weighing control instrument on the market, the Weighing control appliance circuit can be carried
The integrated level of Weighing control instrument high, stability and system conformance, while reducing the cost of system composition.
The input of the multiple-channel output isolated form DC/DC conversion modules 1 is connected with an input voltage, the multiple-channel output
The output end of isolated form DC/DC conversion modules 1 connects ARM embedded systems 2, multi-channel A/D sampling module 3 and RS232/ respectively
RS485 communication modules 8, the output end of the multiple-channel output isolated form DC/DC conversion modules 1 also with multiple outside weighing sensor
Connection.Wherein, the input of multiple-channel output isolated form DC/DC conversion modules 1 is connected with 24V DC input voitages, multiple-channel output
Isolated form DC/DC conversion modules 1 are simultaneously to ARM embedded systems 2, multi-channel A/D sampling module 3 and RS232/RS485 communication modules
8 and multiple outside weighing sensor power.
Described ARM embedded systems 2 include arm processor 6, matrix keyboard module 7, power down memory module 9 and LCD
Display module 10, the described difference connection matrix Keysheet module 7, power down memory module 9, LCD display module of arm processor 6
10。
Described multi-channel A/D sampling module 3 includes 6 CS5532 modulus conversion chips, the every CS5532 analog-to-digital conversion
The SCLK pins in parallel connection of chip, the every SDI pins in parallel connection of the CS5532 modulus conversion chips, described in every
The SDO pins in parallel connection of CS5532 modulus conversion chips, the every OCS2 pins in parallel of the CS5532 modulus conversion chips
Connect and be connected with the active crystal oscillator of a 4.9152MHz, the every CS5532 modulus conversion chip being connected in parallel
SCLK pins, SDI pins, SDO pins be connected with the pin of the SPI3 of arm processor 6 by a magnetic coupled isolator, every
The CS pins of the CS5532 modulus conversion chips are connected with PG10 pins to the PG15 pins of arm processor 6 respectively.By collection
Multiple Channel Synchronous samplings are realized into 6 CS5532 analog-digital converters, sampling precision and the speed of each passage are weighed with single channel
Instrument indifference.
8 described railway digital isolation input modules 4 include 2 TLP281-4 optocouplers, 2 collection of the TLP281-4 optocouplers
Electrode output pin PA7 pins respectively with arm processor 6, PB0 pins, PB1 pins, PB2 pins, PC4 pins, PC5 draw
Pin, PF11 pins, the connection of PF12 pins.TLP281-4 optocouplers described in 2 are believed the signal of arm processor 6 with outside input
Number isolation.
20 described railway digital isolation and amplifier modules 5 are included by 5 TLP281-4 optocouplers and 3 ULN2803 Darlington transistors
The isolated form external coil drive circuit of array composition, 5 negative electrode input pins of the TLP281-4 optocouplers respectively with ARM at
Manage the PD8 pins of device 6, PD9 pins, PD10 pins, PD11 pins, PD12 pins, PD13 pins, PD14 pins, PD15 pins,
PE7 pins, PE8 pins, PE9 pins, PE10 pins, PE11 pins, PE12 pins, PE13 pins, PF13 pins, PF14 draw
Pin, PF15 pins, PG0 pins, the connection of PG1 pins.
Described RS232/RS485 communication modules 8 include RS232 telecommunication circuits and RS485 telecommunication circuits, the RS232
Telecommunication circuit is connected by a magnetic coupling ADuM1402 with the USART1 pins of arm processor 6, and the RS485 telecommunication circuits pass through
One magnetic coupling ADuM1402 is connected with the USART2 pins of arm processor 6.
Described arm processor 6 includes STM32F103ZET6 chips；Described matrix keyboard module 7 respectively with ARM at
Manage the PC10 pins of device 6, PC11 pins, PC12 pins, PD0 pins, PD1 pins, PD2 pins, PD3 pins, PD4 draw
Pin, the connection of PD5 pins.
Described power down memory module 9 includes FM25CL64 chips, described FM25CL64 chips and arm processor 6
SPI2 pins connection.
Described LCD display module 10 includes the LCD12864 liquid crystal displays driven using ST7290, described
The SID pins of LCD12864 liquid crystal displays are connected with the TX pins of the USART3 of arm processor 6, the LCD12864 liquid crystal
The SCK pins of display are connected with the CK pins of the USART3 of arm processor 6.
As shown in figure 9, a kind of control method of Multi-path proportional Weighing control appliance circuit described in the utility model, including
Following rate-determining steps：
(1) the multiple-channel output isolated form DC/DC conversion modules 1 described in change input voltage to modules, and the ARM is embedding
The arm processor 6 of embedded system 2 obtains reset.
(2) the initialization chip port of arm processor 6 described in, then from the parameter of the reading and saving of power down memory module 9
Multi-channel A/D sampling module 3 is configured afterwards, and the outer interruption detecting ADC for being reconfigured at arm processor 6 is converted.
(3) adc data of the arm processor 6 is read into interruption and is placed in limit priority, by the arm processor 6
Serial ports is received to interrupt and is located at sub-priority, waits adc data to be received or serial data.
(4) when described arm processor 6 receives ADC to interrupt, described arm processor 6 has read multichannel in order
6 AD data of CS5532 in AD sampling modules 3, by 8 railway digital isolation input modules 4 and 20 railway digital isolation and amplifier modules 5
Data update, it is ensured that the port of 8 railway digital isolation input modules 4 and 20 railway digital isolation and amplifier modules 5 updates time interval one
Cause is not influenceed by other interruptions.Because not having conditional jump sentence when reading AD data, data are completed from interrupting to reading
Time be fixed.AD data are carried out with moving average numeral filtering, engineering unit conversion, arm processor 6 pairs is then carried out
Whether weight signal analysis judges sensor in stable state, is Row control raising control signal of subsequently weighing.Work as outside
Weighing sensor is changed into when weighing weight equal to tare weight weight and stabilization and starts discharging output identification position, when outside is weighed biography
Sensor changes into stopping discharging output identification position when weighing weight more than or equal to setting weight, be that standard is done in port renewal next time
It is standby, interrupt return afterwards.
(5) when described arm processor 6 receives serial data to interrupt, described RS232/RS485 communication modules 8
The level that level conversion in RS232 or RS485 buses is received into arm processor 6, described arm processor 6 is according to reception
Level translation receive data, correspondence level is transformed into in respective data lines by RS232/RS485 communication modules 8, afterwards
Interrupt and return.
(6) described matrix keyboard module 7 is scanned, LCD display module 10 is updated, step 3 is jumped to.
The foregoing is only preferred embodiment of the present utility model, all institutes in spirit of the present utility model and spirit
Any modification, equivalent and improvement for making etc., should be included within protection domain of the present utility model.
Claims (9)
1. a kind of Multi-path proportional Weighing control appliance circuit, it is characterised in that including multiple-channel output isolated form DC/DC conversion modules
(1), ARM embedded systems (2), multi-channel A/D sampling module (3), 8 railway digital isolation inputs module (4), the isolation of 20 railway digitals are defeated
Go out module (5), RS232/RS485 communication modules (8), described ARM embedded systems (2) connect multiple-channel output isolated form respectively
DC/DC conversion modules (1), multi-channel A/D sampling module (3), 8 railway digital isolation inputs module (4), 20 railway digital isolation and amplifier moulds
Block (5) and RS232/RS485 communication modules (8), described multiple-channel output isolated form DC/DC conversion modules (1) are also connected with multichannel
AD sampling modules (3) and RS232/RS485 communication modules (8), the signal input part connection of the multi-channel A/D sampling module (3) are more
The signal output part of individual outside weighing sensor.
2. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1, it is characterised in that the multiple-channel output
The input of isolated form DC/DC conversion modules (1) is connected with an input voltage, and the multiple-channel output isolated form DC/DC becomes mold changing
The output end of block (1) connects ARM embedded systems (2), multi-channel A/D sampling module (3) and RS232/RS485 communication modules respectively
(8), the output end of the multiple-channel output isolated form DC/DC conversion modules (1) is also connected with multiple outside weighing sensor.
3. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1, it is characterised in that described ARM is embedding
Embedded system (2) includes arm processor (6), matrix keyboard module (7), power down memory module (9) and LCD display module
(10), described arm processor (6) difference connection matrix Keysheet module (7), power down memory module (9), LCD display module
(10)。
4. a kind of Multi-path proportional Weighing control appliance circuit according to claim 2, it is characterised in that described multi-channel A/D
Sampling module (3) includes 6 CS5532 modulus conversion chips, the every SCLK pins in parallel of the CS5532 modulus conversion chips
Connection, the SDI pins in parallel connection of every CS5532 modulus conversion chip, every CS5532 modulus conversion chip
SDO pins in parallel is connected, and the every OCS2 pins in parallel of the CS5532 modulus conversion chips is connected and with a 4.9152MHz's
Active crystal oscillator is connected, every SCLK pins, SDI pins, the SDO of the CS5532 modulus conversion chips being connected in parallel
Pin is connected by a magnetic coupled isolator with the pin of the SPI3 of arm processor (6), the every CS5532 analog-to-digital conversions core
The CS pins of piece are connected with PG10 pins to the PG15 pins of arm processor (6) respectively.
5. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1, it is characterised in that 8 described ways
Word isolation input module (4) includes 2 TLP281-4 optocouplers, 2 colelctor electrode output pin difference of the TLP281-4 optocouplers
PA7 pins, PB0 pins with arm processor (6), PB1 pins, PB2 pins, PC4 pins, PC5 pins, PF11 pins, PF12
Pin is connected.
6. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1, it is characterised in that 20 described ways
Word isolation and amplifier module (5) is including outside the isolated form that is made up of 5 TLP281-4 optocouplers and 3 ULN2803 Darlington transistor arrays
Portion's coil driver, 5 negative electrode input pins of TLP281-4 optocouplers PD8 pins respectively with arm processor (6),
PD9 pins, PD10 pins, PD11 pins, PD12 pins, PD13 pins, PD14 pins, PD15 pins, PE7 pins, PE8 draw
Pin, PE9 pins, PE10 pins, PE11 pins, PE12 pins, PE13 pins, PF13 pins, PF14 pins, PF15 pins,
PG0 pins, the connection of PG1 pins.
7. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1, it is characterised in that described RS232/
RS485 communication modules (8) include RS232 telecommunication circuits and RS485 telecommunication circuits, and the RS232 telecommunication circuits pass through a magnetic coupling
ADuM1402 is connected with the USART1 pins of arm processor (6), the RS485 telecommunication circuits by a magnetic coupling ADuM1402 with
The USART2 pins connection of arm processor (6).
8. a kind of Multi-path proportional Weighing control appliance circuit according to claim 3, it is characterised in that at described ARM
Reason device (6) includes STM32F103ZET6 chips；PC10 of the described matrix keyboard module (7) respectively with arm processor (6) draws
Pin, PC11 pins, PC12 pins, PD0 pins, PD1 pins, PD2 pins, PD3 pins, PD4 pins, PD5 pins connection；
Described power down memory module (9) includes FM25CL64 chips, described FM25CL64 chips and arm processor (6)
SPI2 pins are connected.
9. a kind of Multi-path proportional Weighing control appliance circuit according to claim 3, it is characterised in that described LCD shows
Show that module (10) includes the LCD12864 liquid crystal displays using ST7290 drivings, the SID of the LCD12864 liquid crystal displays
Pin is connected with the TX pins of the USART3 of arm processor (6), at the SCK pins and ARM of the LCD12864 liquid crystal displays
The CK pins of the USART3 of reason device (6) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294261.XU CN206249053U (en) | 2016-11-29 | 2016-11-29 | A kind of Multi-path proportional Weighing control appliance circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294261.XU CN206249053U (en) | 2016-11-29 | 2016-11-29 | A kind of Multi-path proportional Weighing control appliance circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206249053U true CN206249053U (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621294261.XU Expired - Fee Related CN206249053U (en) | 2016-11-29 | 2016-11-29 | A kind of Multi-path proportional Weighing control appliance circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444552A (en) * | 2016-11-29 | 2017-02-22 | 梧州学院 | Multi-path quantitative weighing control instrument circuit and control method thereof |
| CN110855128A (en) * | 2019-11-29 | 2020-02-28 | 深圳市瑞驰信息技术有限公司 | Intelligent case power supply |
-
2016
- 2016-11-29 CN CN201621294261.XU patent/CN206249053U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444552A (en) * | 2016-11-29 | 2017-02-22 | 梧州学院 | Multi-path quantitative weighing control instrument circuit and control method thereof |
| CN110855128A (en) * | 2019-11-29 | 2020-02-28 | 深圳市瑞驰信息技术有限公司 | Intelligent case power supply |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20211129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |