CN106444552A - Multi-path quantitative weighing control instrument circuit and control method thereof - Google Patents
Multi-path quantitative weighing control instrument circuit and control method thereof Download PDFInfo
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- CN106444552A CN106444552A CN201611074767.4A CN201611074767A CN106444552A CN 106444552 A CN106444552 A CN 106444552A CN 201611074767 A CN201611074767 A CN 201611074767A CN 106444552 A CN106444552 A CN 106444552A
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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—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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Abstract
The invention discloses a multi-path quantitative weighing control instrument circuit. The multi-path quantitative weighing control instrument circuit comprises a multi-output isolated DC/DC conversion module, an ARM embedded system, a multi-path AD sampling module, an 8-path digital isolated input module, a 20-path digital isolated output module and an RS232/RS485 communication module, wherein the ARM embedded system is connected with the multi-output isolated DC/DC conversion module, the multi-path AD sampling module, the 8-path digital isolated input module, the 20-path digital isolated output module and the RS232/RS485 communication module respectively; the multi-output isolated DC/DC conversion module is further connected with the multi-path AD sampling module and the RS232/RS485 communication module. The multi-path quantitative weighing control instrument circuit can improve the integration level, the stability and the system consistency of a weighing control instrument, and reduces the cost of system composition. The invention further discloses a control method of the control instrument circuit.
Description
Technical field
The present invention relates to a kind of Weighing control instrument, more specifically, more particularly, to a kind of Multi-path proportional weighing controller
Watch circuit；The invention still further relates to the control method of this control instrument circuit.
Background technology
At present, on market, single channel/two-way Weighing control instrument controls speed all fine with precision and very general
And.But in the case that some packaging task weights, time are more urgent, need multiple stage instrument and multiple stage machine to work just simultaneously
Can complete.At this moment, the parameter disunity of every instrument, networking is complicated, and existence and stability is poor, complex operation, level of integrated system are low
The shortcomings of, even more it is difficult to depositing of multiple stage machine especially when hall space is limited, and operation cost is higher.Cause
This is it would be highly desirable to invent a kind of control device that can control multiple stage instrument simultaneously.
Content of the invention
It is an object of the invention to provide a kind of Multi-path proportional Weighing control appliance circuit, this Weighing control appliance circuit energy
Enough improve integrated level, stability and the system conformance of Weighing control instrument, reduce the cost of system composition simultaneously.
Another object of the present invention is to providing a kind of control method of Multi-path proportional Weighing control appliance circuit, using this
Control method is capable of the function of traditional Weighing control instrument.
The previous technical scheme that the present invention adopts is as follows：
A kind of Multi-path proportional Weighing control appliance circuit, wherein, including multiple-channel output isolated form DC/DC conversion module, 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 module, described ARM embedded system connects multiple-channel output isolated form DC/DC conversion module respectively, multi-channel A/D is adopted
Egf block, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules and RS232/RS485 communication module, described is many
Road output isolated form DC/DC conversion module is also connected with multi-channel A/D sampling module and RS232/RS485 communication module, described multi-channel A/D
The signal input part of sampling module connects the signal output part of multiple outside LOAD CELLSs.
The latter technique scheme that the present invention adopts is as follows：
A kind of control method of Multi-path proportional Weighing control appliance circuit, including following rate-determining steps：
(1), to modules, described ARM is embedding for the multiple-channel output isolated form DC/DC conversion module conversion input voltage described in
The arm processor of embedded system obtains reset；
(2) the arm processor initialization chip port described in, then after the parameter of power down memory module reading and saving
Configuration multi-channel A/D sampling module, the outer interruption detecting ADC being reconfigured at arm processor converts；
(3) adc data of described arm processor is read interruption and be placed in limit priority, by the string of described arm processor
Mouth receives and interrupts being located at sub-priority, waits adc data to be received or serial data；
(4) when described arm processor receives ADC interruption, described arm processor has read multi-channel A/D in order
The AD data of 6 CS5532 in sampling module, by 8 railway digital isolation input modules and 20 railway digital isolation and amplifier module datas more
Newly；To weight signal analysis, arm processor judges whether sensor is in steady statue, when outside LOAD CELLS is weighed weight
Change into equal to tare weight weight and when stablizing beginning discharging output identification position, when outside LOAD CELLS weigh weight be more than etc.
Change into stopping discharging output identification position when setting weight, interrupt returning；
(5) when described arm processor receives serial data interruption, described RS232/RS485 communication module will
Level conversion in RS232 or RS485 bus becomes the level that arm processor receives, and described arm processor is according to the electricity receiving
Flat conversion receiving data, is transformed into corresponding level to respective data lines by RS232/RS485 communication module (8), interrupts returning
Return；
(6) scan described matrix keyboard module, update LCD display module, jump to step (3).
Compared with prior art, the device have the advantages that being：
1. a kind of Multi-path proportional Weighing control appliance circuit of the present invention, becomes die change including multiple-channel output isolated form DC/DC
Block, 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 module, described ARM embedded system connects multiple-channel output isolated form DC/DC conversion module, many respectively
Road AD sampling module, 8 railway digital isolation input modules, 20 railway digital isolation and amplifier modules and RS232/RS485 communication module are many
Road output isolated form DC/DC conversion module is also connected with multi-channel A/D sampling module and RS232/RS485 communication module, and multi-channel A/D is sampled
The signal input part of module connects the signal output part of multiple outside LOAD CELLSs.Realized quite by modeled programming
Replace the function of realizing using 6 Weighing control instrument on the market, this Weighing control appliance circuit energy in 1 Weighing control instrument
Enough improve integrated level, stability and the system conformance of Weighing control instrument, reduce the cost of system composition simultaneously.
2. the control method of a kind of Multi-path proportional Weighing control appliance circuit of the present invention, multiple-channel output isolated form DC/DC
Conversion module changes input voltage to modules, and the arm processor of described ARM embedded system obtains reset；Described ARM
Processor initializes chip port, then configures multi-channel A/D sampling module after the parameter of power down memory module reading and saving,
The outer interruption detecting ADC being reconfigured at arm processor converts；The adc data of described arm processor is read interruption be placed in
High priority, the serial ports of described arm processor is received and interrupts being located at sub-priority, wait adc data to be received or serial ports number
According to, execute further according to the adc data obtaining or serial data and operate accordingly, the described matrix keyboard module of scanning, renewal
Wait interrupt signal circulation is redirected after LCD display module.It is capable of 6 Weighing control instrument on the market using this control method
The function of realizing.
Brief description
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the circuit theory diagrams of multiple-channel output isolated form DC/DC conversion module of the present invention；
Fig. 3 is the circuit theory diagrams of ARM embedded system of the present invention；
Fig. 4 is the circuit theory diagrams of the present invention 8 railway digital isolation input module and RS232/RS485 communication module；
Fig. 5 is the circuit theory diagrams of multi-channel A/D sampling module of the present invention；
Fig. 6 is the circuit theory diagrams of the present invention single AD sampling module；
Fig. 7 is the circuit theory diagrams of the present invention 20 railway digital isolation and amplifier module；
Fig. 8 is the connection figure of ARM embedded system of the present invention；
Fig. 9 is the control flow chart of control instrument circuit of the present invention.
Specific embodiment
With reference to specific embodiment, technical scheme is described in further detail, but do not constitute right
Any restriction of the present invention.
As shown in Fig. 1 is to 8, a kind of Multi-path proportional Weighing control appliance circuit of the present invention, wherein, including multiple-channel output every
Release DC/DC conversion module 1, ARM embedded system 2, multi-channel A/D sampling module 3,8 railway digital isolation input modules 4,20 ways
Word isolation and amplifier module 5, RS232/RS485 communication module 8, described ARM embedded system 2 connects multiple-channel output isolation respectively
Type DC/DC conversion module 1, multi-channel A/D sampling module 3,8 railway digital isolation input modules 4,20 railway digital isolation and amplifier module 5 and
RS232/RS485 communication module 8, described multiple-channel output isolated form DC/DC conversion module 1 is also connected with multi-channel A/D sampling module 3
With RS232/RS485 communication module 8, the multiple outside LOAD CELLSs of signal input part connection of described multi-channel A/D sampling module 3
Signal output part.Realize being equivalent to a kind of Multi-path proportional Weighing control instrument of 1 present invention by modeled programming
The function that circuitry instead is realized using 6 Weighing control instrument on the market, this Weighing control appliance circuit can improve control of weighing
The integrated level of instrument processed, stability and system conformance, reduce the cost of system composition simultaneously.
The input of described multiple-channel output isolated form DC/DC conversion module 1 is connected with an input voltage, described multiple-channel output
The outfan of isolated form DC/DC conversion module 1 connects ARM embedded system 2, multi-channel A/D sampling module 3 and RS232/ respectively
RS485 communication module 8, the outfan of described multiple-channel output isolated form DC/DC conversion module 1 also with multiple outside LOAD CELLSs
Connect.Wherein, the input of multiple-channel output isolated form DC/DC conversion module 1 is connected with 24V DC input voitage, multiple-channel output
Isolated form DC/DC conversion module 1 is simultaneously to ARM embedded system 2, multi-channel A/D sampling module 3 and RS232/RS485 communication module
8 and multiple outside LOAD CELLS power.
Described ARM 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 distinguishes connection matrix Keysheet module 7, power down memory module 9, LCD display module
10.
Described multi-channel A/D sampling module 3 includes 6 CS5532 modulus conversion chips, every described CS5532 analog digital conversion
The SCLK pins in parallel of chip connects, and the SDI pins in parallel of every described CS5532 modulus conversion chip connects, described in every
The SDO pins in parallel of CS5532 modulus conversion chip connects, the OCS2 pins in parallel of every described CS5532 modulus conversion chip
Connect and be connected with the active crystal agitator of a 4.9152MHz, the every described CS5532 modulus conversion chip being connected in parallel
SCLK pin, SDI pin, SDO pin be connected with the pin of the SPI3 of arm processor 6 by a magnetic coupled isolator, every
The CS pin of described CS5532 modulus conversion chip is connected to PG15 pin with the PG10 pin of arm processor 6 respectively.By collection
6 CS5532 analog-digital converters are become to realize multiple Channel Synchronous samplings, the sampling precision of each passage and speed are weighed with single channel
Instrument indifference.
8 described railway digital isolation input modules 4 include 2 TLP281-4 optocouplers, the collection of 2 described TLP281-4 optocouplers
Electrode output pin is drawn with the PA7 pin of arm processor 6, PB0 pin, PB1 pin, PB2 pin, PC4 pin, PC5 respectively
Foot, PF11 pin, PF12 pin connect.TLP281-4 optocoupler described in 2 is 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, the negative electrode input pin of 5 described TLP281-4 optocouplers respectively with ARM at
The reason PD8 pin of device 6, PD9 pin, PD10 pin, PD11 pin, PD12 pin, PD13 pin, PD14 pin, PD15 pin,
PE7 pin, PE8 pin, PE9 pin, PE10 pin, PE11 pin, PE12 pin, PE13 pin, PF13 pin, PF14 draw
Foot, PF15 pin, PG0 pin, PG1 pin connect.
Described RS232/RS485 communication module 8 includes RS232 telecommunication circuit and RS485 telecommunication circuit, described RS232
Telecommunication circuit is connected with the USART1 pin of arm processor 6 by a magnetic coupling ADuM1402, and described RS485 telecommunication circuit is passed through
One magnetic coupling ADuM1402 is connected with the USART2 pin of arm processor 6.
Described arm processor 6 includes STM32F103ZET6 chip；Described matrix keyboard module 7 respectively with ARM at
The reason PC10 pin of device 6, PC11 pin, PC12 pin, PD0 pin, PD1 pin, PD2 pin, PD3 pin, PD4 draw
Foot, PD5 pin connect.
Described power down memory module 9 includes FM25CL64 chip, described FM25CL64 chip and arm processor 6
SPI2 pin connect.
Described LCD display module 10 includes the LCD12864 liquid crystal display driving using ST7290, described
The SID pin of LCD12864 liquid crystal display is connected with the TX pin of the USART3 of arm processor 6, described LCD12864 liquid crystal
The SCK pin of display is connected with the CK pin 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 of the present invention, including following
Rate-determining steps：
(1), to modules, described ARM is embedding for the multiple-channel output isolated form DC/DC conversion module 1 conversion input voltage described in
The arm processor 6 of embedded system 2 obtains reset.
(2) the arm processor 6 initialization chip port described in, then from the parameter of power down memory module 9 reading and saving
Configure multi-channel A/D sampling module 3 afterwards, the outer interruption detecting ADC being reconfigured at arm processor 6 converts.
(3) adc data of described arm processor 6 is read interruption and be placed in limit priority, by described arm processor 6
Serial ports receives and interrupts being located at sub-priority, waits adc data to be received or serial data.
(4) when described arm processor 6 receives ADC interruption, described arm processor 6 has read multichannel in order
The AD data of 6 CS5532 in AD sampling module 3, by 8 railway digital isolation input modules 4 and 20 railway digital isolation and amplifier modules 5
Data updates 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 not affected by other interruptions.Because not having conditional jump sentence when reading AD data, from interrupting to reading, data completes
Time be fixing.AD data is carried out with moving averages numeral filtering, then carries out engineering unit conversion, arm processor 6 is right
Weight signal analysis judges whether sensor is in steady statue, and in order subsequently to weigh, Row control improves control signal.Work as outside
LOAD CELLS weight of weighing is equal to tare weight weight and changes into when stablize and start discharging output identification position, when weighing biography in outside
Sensor is weighed when weight is more than or equal to setting weight and is changed into stopping discharging output identification position, updates for port next time and does standard
Standby, interrupt afterwards returning.
(5) when described arm processor 6 receives serial data and interrupts, described RS232/RS485 communication module 8
Level conversion in RS232 or RS485 bus is become the level that arm processor 6 receives, described arm processor 6 is according to reception
Level translation receiving data, corresponding level is transformed into respective data lines by RS232/RS485 communication module 8, afterwards
Interrupt returning.
(6) scan described matrix keyboard module 7, update LCD display module 10, jump to step 3.
The foregoing is only presently preferred embodiments of the present invention, all made in the range of the spirit and principles in the present invention any
Modification, equivalent and improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of Multi-path proportional Weighing control appliance circuit is it is characterised in that include multiple-channel output isolated form DC/DC conversion module
(1), ARM embedded system (2), multi-channel A/D sampling module (3), 8 railway digitals isolation input module (4), 20 railway digital isolation are defeated
Go out module (5), RS232/RS485 communication module (8), described ARM embedded system (2) connects multiple-channel output isolated form respectively
DC/DC conversion module (1), multi-channel A/D sampling module (3), 8 railway digitals isolation input module (4), 20 railway digital isolation and amplifier moulds
Block (5) and RS232/RS485 communication module (8), described multiple-channel output isolated form DC/DC conversion module (1) is also connected with multichannel
AD sampling module (3) and RS232/RS485 communication module (8), the signal input part connection of described multi-channel A/D sampling module (3) is many
The signal output part of individual outside LOAD CELLS.
2. a kind of Multi-path proportional Weighing control appliance circuit according to right 1 is it is characterised in that described multiple-channel output is isolated
The input of type DC/DC conversion module (1) is connected with an input voltage, described multiple-channel output isolated form DC/DC conversion module (1)
Outfan connect ARM embedded system (2), multi-channel A/D sampling module (3) and RS232/RS485 communication module (8), institute respectively
The outfan stating multiple-channel output isolated form DC/DC conversion module (1) is also connected with multiple outside LOAD CELLSs.
3. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1 is 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) connection matrix Keysheet module (7), power down memory module (9), LCD display module respectively
(10).
4. a kind of Multi-path proportional Weighing control appliance circuit according to claim 2 is it is characterised in that described multi-channel A/D
Sampling module (3) includes 6 CS5532 modulus conversion chips, the SCLK pins in parallel of every described CS5532 modulus conversion chip
Connect, the SDI pins in parallel of every described CS5532 modulus conversion chip connects, every described CS5532 modulus conversion chip
SDO pins in parallel connects, and the OCS2 pins in parallel of every described CS5532 modulus conversion chip connects and with a 4.9152MHz's
Active crystal agitator connects, every the SCLK pin of described CS5532 modulus conversion chip being connected in parallel, SDI pin, SDO
Pin is connected with the pin of the SPI3 of arm processor (6) by a magnetic coupled isolator, every described CS5532 analog digital conversion core
The CS pin of piece is connected to PG15 pin with the PG10 pin of arm processor (6) respectively.
5. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1 is it is characterised in that described 8 ways
Word isolation input module (4) includes 2 TLP281-4 optocouplers, and the colelctor electrode output pin of 2 described TLP281-4 optocouplers is respectively
With the PA7 pin of arm processor (6), PB0 pin, PB1 pin, PB2 pin, PC4 pin, PC5 pin, PF11 pin, PF12
Pin connects.
6. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1 is it is characterised in that described 20 ways
Word isolation and amplifier module (5) is included outside the isolated form that is made up of 5 TLP281-4 optocouplers and 3 ULN2803 Darlington transistor arrays
Portion's coil driver, the negative electrode input pin of 5 described TLP281-4 optocouplers respectively with the PD8 pin of arm processor (6),
PD9 pin, PD10 pin, PD11 pin, PD12 pin, PD13 pin, PD14 pin, PD15 pin, PE7 pin, PE8 draw
Foot, PE9 pin, PE10 pin, PE11 pin, PE12 pin, PE13 pin, PF13 pin, PF14 pin, PF15 pin, PG0
Pin, PG1 pin connect.
7. a kind of Multi-path proportional Weighing control appliance circuit according to claim 1 is it is characterised in that described RS232/
RS485 communication module (8) includes RS232 telecommunication circuit and RS485 telecommunication circuit, and described RS232 telecommunication circuit passes through a magnetic coupling
ADuM1402 is connected with the USART1 pin of arm processor (6), described RS485 telecommunication circuit pass through a magnetic coupling ADuM1402 with
The USART2 pin of arm processor (6) connects.
8. a kind of Multi-path proportional Weighing control appliance circuit according to claim 3 is it is characterised in that at described ARM
Reason device (6) includes STM32F103ZET6 chip；Described matrix keyboard module (7) is drawn with the PC10 of arm processor (6) respectively
Foot, PC11 pin, PC12 pin, PD0 pin, PD1 pin, PD2 pin, PD3 pin, PD4 pin, PD5 pin connect；
Described power down memory module (9) includes FM25CL64 chip, described FM25CL64 chip and arm processor (6)
SPI2 pin connects.
9. a kind of Multi-path proportional Weighing control appliance circuit according to claim 3 is it is characterised in that described LCD shows
Show that module (10) includes the LCD12864 liquid crystal display driving using ST7290, the SID of described LCD12864 liquid crystal display
Pin is connected with the TX pin of the USART3 of arm processor (6), at the SCK pin of described LCD12864 liquid crystal display and ARM
The CK pin of the USART3 of reason device (6) is connected.
10. a kind of control method of the Multi-path proportional Weighing control appliance circuit described in claim 3 is it is characterised in that include
Following rate-determining steps：
(1) to modules, described ARM embeds multiple-channel output isolated form DC/DC conversion module (1) the conversion input voltage described in
The arm processor (6) of formula system (2) obtains reset；
(2) arm processor (6) the initialization chip port described in, then from the parameter of power down memory module (9) reading and saving
Configuration multi-channel A/D sampling module (3) afterwards, the outer interruption detecting ADC being reconfigured at arm processor (6) converts；
(3) adc data of described arm processor (6) is read interruption and be placed in limit priority, by described arm processor (6)
Serial ports receives and interrupts being located at sub-priority, waits adc data to be received or serial data；
(4) when described arm processor (6) receives ADC interruption, described arm processor (6) has read multichannel in order
The AD data of 6 CS5532 in AD sampling module (3), by 8 railway digitals isolation input module (4) and 20 railway digital isolation and amplifier moulds
Block (5) data updates；To weight signal analysis, arm processor (6) judges whether sensor is in steady statue, when weighing in outside
Scales heavy amount changes into beginning discharging output identification position when being equal to tare weight weight and stablizing, when outside LOAD CELLS
Weight of weighing changes into stopping discharging output identification position when being more than or equal to setting weight, interrupt returning；
(5) when described arm processor (6) receives serial data and interrupts, described RS232/RS485 communication module (8)
Level conversion in RS232 or RS485 bus is become the level that arm processor (6) receives, described arm processor (6) basis
The level translation receiving data receiving, is transformed into corresponding level to respective data lines by RS232/RS485 communication module (8)
On, interrupt returning；
(6) scan described matrix keyboard module (7), update LCD display module (10), jump to step (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611074767.4A CN106444552A (en) | 2016-11-29 | 2016-11-29 | Multi-path quantitative weighing control instrument circuit and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611074767.4A CN106444552A (en) | 2016-11-29 | 2016-11-29 | Multi-path quantitative weighing control instrument circuit and control method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139205A (en) * | 1995-04-06 | 1997-01-01 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN200993597Y (en) * | 2006-12-06 | 2007-12-19 | 蒋德云 | Weighing controller |
| CN104153778A (en) * | 2014-08-14 | 2014-11-19 | 天地科技股份有限公司 | Plate-type rapid quantitative loading system and method |
| CN104291064A (en) * | 2014-08-14 | 2015-01-21 | 天地科技股份有限公司 | Weighing method and device of rapid quantitative plate conveyer |
| CN104441569A (en) * | 2013-09-23 | 2015-03-25 | 上海松耐机械制造有限公司 | Extruder batching and flow control system and control method thereof |
| CN206249053U (en) * | 2016-11-29 | 2017-06-13 | 梧州学院 | A kind of Multi-path proportional Weighing control appliance circuit |
-
2016
- 2016-11-29 CN CN201611074767.4A patent/CN106444552A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139205A (en) * | 1995-04-06 | 1997-01-01 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN200993597Y (en) * | 2006-12-06 | 2007-12-19 | 蒋德云 | Weighing controller |
| CN104441569A (en) * | 2013-09-23 | 2015-03-25 | 上海松耐机械制造有限公司 | Extruder batching and flow control system and control method thereof |
| CN104153778A (en) * | 2014-08-14 | 2014-11-19 | 天地科技股份有限公司 | Plate-type rapid quantitative loading system and method |
| CN104291064A (en) * | 2014-08-14 | 2015-01-21 | 天地科技股份有限公司 | Weighing method and device of rapid quantitative plate conveyer |
| CN206249053U (en) * | 2016-11-29 | 2017-06-13 | 梧州学院 | A kind of Multi-path proportional Weighing control appliance circuit |
Non-Patent Citations (1)
| Title |
|---|
| 许忠扬: "微机控制的多路皮带秤调速定量投料系统", 《电子测量与仪器学报》 * |
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