CN206858674U - A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system - Google Patents
A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system Download PDFInfo
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- CN206858674U CN206858674U CN201720459352.2U CN201720459352U CN206858674U CN 206858674 U CN206858674 U CN 206858674U CN 201720459352 U CN201720459352 U CN 201720459352U CN 206858674 U CN206858674 U CN 206858674U
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Abstract
The utility model discloses a kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system, wherein, device includes four tunnels sensing and control module, four road transducing signal pretreatments and motor drive module, microprocessor, CAN communication module, power module；Electrically connected per sensing all the way with control module with being corresponded per the pretreatment of transducing signal all the way and motor drive module, electrically connected per the pretreatment of transducing signal all the way and motor drive module with microprocessor, and setting signal isolation module therebetween, microprocessor electrically connects with CAN communication module, power module is connected with microprocessor, sensing and control module, transducing signal pretreatment and motor drive module and CAN communication module, and power supply is provided for each module.The utility model improves the automaticity, the convenience of operation and the stability of anode rod current measurement of measurement apparatus, is monitored suitable for aluminium electrolysis anode distributed current.
Description
Technical field
The utility model belongs to aluminium electrolysis anode current detection technology field, more particularly, to a kind of aluminium electrolysis anode
Guide rod distributed current Detection ＆ Controling apparatus and system.
Background technology
Aluminium electroloysis is a complicated electrochemical reaction process, be by multiple physics such as electric field, magnetic field, thermal field, flow field
The coupling of field.The complexity of aluminum electrolysis condition and the severe of production environment cause to lack to the online prison of aluminium electrolysis process
The method and apparatus of survey, and anode current is a highly important data in aluminum electrolysis, it with aluminum electrolysis
A variety of situations it is relevant, stream traditional measurement method is using artificial offline method measurement anode current, is pitched using measurement close
Cutting link.Anode rod distributed current can react aluminium electrolysis process situation, have great importance to aluminum electrolysis process process.
The equidistant pressure drop of anode electrical measurement, with the millivolt voltmeter reading access evidence of repacking, this traditional detection method can not be simultaneously to institute
There is anode rod to measure, operating efficiency is low, and data hysteresis is serious, and labor strength is big.
The measurement to aluminium electrolysis anode guide rod electric current has also carried out substantial amounts of research at present, and CN203653718U has invented one
Kind of aluminum cell anodic current distributed detection system, radio communication is used using concentrator and measurement apparatus, use is manually installed
And provision for disengagement, but the operating time average out to of each measurement point 3 minutes, calculated by 48 measurement points of an aluminium cell,
The time of nearly 3 hours is needed, working strength is big, longevity of service, and needs operator to work on the cover board, has larger
Hidden danger；CN105624734A has invented a kind of aluminium cell anode distributed current accurate measurement instrument with self-calibration function, adopts
With wire communication, device lacks centralized Control and remote control, part component life-span are not grown, and work ease for use is poor, and reliability is not high.
CN103014774A has invented a kind of on-line measurement device based on aluminum cell anodic current distribution, and probe uses common metal
Probe, easily it is corroded in industry spot, causes probe and anode rod loose contact, anode current measurement inaccuracy.
In summary, it is necessary to further optimize anode rod current measuring device and exploitation controller.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of aluminium electrolysis anode guide rod point
Cloth current detecting and control system, realize that measurement apparatus probe is corrosion-resistant, device installation and removal are convenient, and measurement apparatus is with concentrating
Device communication energy electromagnetism interference, can concentrate hand-guided and mobile terminal Remote, improve the component life-span, measurement result is not
Easily affected by environment, reliability is high, and operating personnel are easy to monitor in real time.
To achieve the above object, according to one side of the present utility model, there is provided a kind of aluminium electrolysis anode guide rod distribution
Current detecting and control device, including：Sensing and control module, transducing signal pretreatment and motor drive module, microprocessor,
CAN communication module, power module；
Wherein, the sensing includes four tunnels sensing and control module, the transducing signal pretreatment and electricity with control module
Machine drive module includes four road transducing signal pretreatments and motor drive module, is passed all the way with every with control module per sensing all the way
Feel Signal Pretreatment and motor drive module corresponds electrical connection, it is equal per the pretreatment of transducing signal all the way and motor drive module
Electrically connected with the microprocessor, and per between the pretreatment of transducing signal all the way and motor drive module and the microprocessor
Setting signal isolation module, the microprocessor electrically connect with the CAN communication module, the power module with it is described micro-
Processor, the sensing communicate with control module, transducing signal pretreatment and motor drive module and the CAN
Module connects.
Preferably, the sensing includes temperature sensor, pull pressure sensor, equidistant voltage measurement contact with control module
And stepper motor, wherein, the temperature sensor uses PT1000 platinum resistance thermometer sensor,s, and the pull pressure sensor is drawn using bellows-type
Pressure sensor, the stepper motor use 24V small type stepping motors.
Preferably, the equidistant voltage measurement contact uses gold plated contact.
Preferably, the transducing signal pretreatment and motor drive module include low-voltage amplifying circuit, filter circuit, temperature
Signal conditioning circuit, pressure signal conditioning circuit, stepper motor driving circuit, A/D drive circuits and signal isolation circuit are spent,
Wherein, low-voltage amplifying circuit, filter circuit and A/D drive circuits are sequentially connected in series, temperature sensor, temperature signal regulation circuit
It is sequentially connected in series with A/D drive circuits, pull pressure sensor, pressure signal conditioning circuit and A/D drive circuits are sequentially connected in series, step
Stepper motor, stepper motor driving circuit and signal isolation circuit are sequentially connected in series.
Preferably, the low-voltage amplifying circuit is amplified using two-stage, respectively preposition amplification and reception amplification, wherein before
The AD620 instrumentation amplifiers for using ADI companies greatly are put, reception amplifier uses the rail-to-rail Auto zeroing amplifier of ADI companies
AD8629, the filter circuit use 5 rank low pass ellipse filter circuits.
Preferably, the microprocessor uses the technical grade core with CAN communication interface of ST Microelectronics's production
Piece STM32F407ZGT7.
Preferably, the sensing and control module and transducing signal pretreatment and motor drive module use band to shield
Layer twisted pair line connection.
Preferably, the transducing signal pretreatment and motor drive module, the microprocessor, CAN communication
Module and the power module are closed in zinc-plated iron-clad shielding box.
Preferably, the CAN communication module includes CAN drive circuits and photoelectric isolating circuit, and CAN drive circuits are adopted
The technical grade CAN driving chip SN65HVD233SJD chips produced with TI companies, photoelectric isolating circuit are used using TI companies
Light is every chip I SO7221MD, and CAN drive circuits and CAN cable connection, interface are used uniformly aviation plug.
To achieve the above object, according to other side of the present utility model, there is provided a kind of aluminium electrolysis anode guide rod point
Cloth current detecting and control system, including distributed current signal Centralized Controller, background server, mobile digital terminal module with
And the as above aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device described in any one；
Wherein, the distributed current signal Centralized Controller and the aluminium electrolysis anode guide rod distributed current Detection ＆ Controling
Device is connected by CAN, and is connected with the background server by Ethernet, the mobile digital terminal module and institute
Background server is stated to connect by wireless network.
In general, by the contemplated above technical scheme of the utility model compared with prior art, mainly have following
Technological merit：
(1) the utility model is communicated using CAN with distributed current signal Centralized Controller, and CAN can be with
Real-time, reliable and high speed data communicate between realizing each node of system, and are not in that showing in RS-485 networks occurs
As that is, when system is wrong, when multinode occur and sending data to bus simultaneously, causing bus that short circuit is presented, so as to damage certain
The phenomenon of a little nodes.The perfect communication protocol that CAN has can realize by CAN controller chip and its interface chip, these
Be only electric agreement RS-485 it is incomparable.
(2) the utility model design mobile digital terminal can with the installation and removal of Remote measurement apparatus, and
The data of measurement apparatus collection can be received, and graphically shown, manipulation is easy, and it is existing that operating personnel may be located remotely from industry
Field is monitored.
(3) the utility model uses the probe measurement anode current of craft of gilding, can ensure that measurement apparatus is led with anode
The good contact of bar, slow down measurement probe and be corroded, reduce rate of breakdown.
(4) the utility model improves the precision of measurement temperature, simultaneously using PT1000 platinum resistance thermometer sensor,s as temperature sensor
Using three-wire system thermometric, the interference of measurement circuitry resistance can be reduced.
(5) the utility model coordinates the installation and removal for measuring device using pull pressure sensor with stepper motor,
Solve to cause the inaccurate failure of measurement result because measurement probe is not adjacent to anode rod.
(6) the utility model is filtered using five rank low-pass elliptic filters to anode rod voltage difference, can effectively be filtered
Signal interference in addition to signal source frequency scope.
(7) the utility model using STM32F407ZGT7 as microprocessor, 12 A/D converters of the integrated chip
With CAN communication interface, external number of chips can be reduced, reduces cost, reduces equipment volume.
(8) the utility model designs shielding box of the zinc-plated can as measuring and controlling, and it is existing can to effectively reduce industry
The interference of field electromagnetic field.
Brief description of the drawings
Fig. 1 is a kind of current detecting and control device master-plan block diagram that the utility model embodiment provides；
Fig. 2 is a kind of motor Drive diagram that the utility model embodiment provides；
Fig. 3 is a kind of anode rod voltage two-stage amplifying circuit schematic diagram that the utility model embodiment provides；
Fig. 4 is a kind of temperature survey and signal conditioning circuit diagram that the utility model embodiment provides；
Fig. 5 is the active low-pass elliptic filter circuit theory diagrams of the rank of one kind five that the utility model embodiment provides；
Fig. 6 is a kind of CAN driver circuit schematic diagram that the utility model embodiment provides；
Fig. 7 is a kind of pull pressure sensor installation diagram that the utility model embodiment provides；
Fig. 8 is the entire block diagram of a kind of current detecting and control system that the utility model embodiment provides；
In all of the figs, identical reference is used for representing identical element or structure, wherein：1 sensing and control
Module, the pretreatment of 2 transducing signals and motor drive module, 3 microprocessors, 4CAN bus communication modules, 6 distributed current signal collection
Middle controller, 28 power modules, 6-1CAN drive circuits, 6-2 photoelectric isolating circuits, 1-1 anode rods, 1-2 pressures sensing
Device, 1-3 push rods, 1-4 insulation touch panels, 8-1 measurements and executing agency, 8-2 anode large bus bars, 8-3 electrolytic cells, 8-4 anode rods,
8-5CAN buses, 8-6 distributed current signal Centralized Controllers, 8-7 measurements and control device, 8-8 background servers, 8-9 is wireless
Accessing points, 8-10 mobile digital terminals.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.In addition, institute in each embodiment of the utility model disclosed below
As long as the technical characteristic being related to does not form conflict each other, can is mutually combined.
The utility model is directed to existing anode rod current measuring device Frequent Troubles, concentration manipulates and remote control is inconvenient,
The problem of measurement result reliability is not high, there is provided a kind of aluminium electrolysis anode guide rod distributed current measurement and control system, contribute to
Monitoring to aluminium electrolysis anode guide rod distributed current and the control to monitoring device.
A kind of as shown in figure 1, aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device bag disclosed in the utility model
Include sensing and control module 1, transducing signal pretreatment and motor drive module 2, microprocessor 3, CAN communication module 4, electricity
Source module 28, wherein,
Sensing is pre-processed with control module 1 with transducing signal and motor drive module 2 electrically connects, and interface is aviation plug,
Transducing signal is pre-processed and motor drive module 2 is isolated with microprocessor 3 by isolating chip, and microprocessor 3 communicates with CAN
Module 4 is electrically connected, and isolation module is set between microprocessor 3 and CAN communication module 4.
Wherein, sensing includes equidistant voltage measurement contact 14, temperature sensor signal detection 15, tension and compression with control module 1
Force sensor signals detect 16 and 24V stepper motors, and sensing is arranged on sensing and the execution of anode rod with control module 1
On device, temperature sensor and equidistant voltage measurement contact are fixed on insulation board, and pressure is installed between insulation board and push rod
Sensor detects thrust magnitude of the push rod to insulation board, judges whether sensing compresses or unclamp with performs device by microprocessor, pushes away
Bar is driven by the gear on stepping motor rotor, and stepper motor receives control signal push-tight push rod or retracts push rod.Equidistant voltage
Metering contact totally two, anode rod is sought for measuring anode rod closely 2 points of voltage difference, then by ohm law
Current value, equidistant voltage measurement contact uses craft of gilding, and probe corrosion resistance can be greatly improved, and ensures probe and sun
The good contact of pole guide rod.
Transducing signal pre-processes low including pre-amplification circuit 18, reception amplifying circuit 19, five ranks with motor drive module 2
Bandpass filter circuit 20, A/D drive circuits 21, MUX 22, signal isolation circuit 23, temperature voltage signal conditioning module
24th, pull pressure sensor Signal-regulated kinase 25, stepper motor driver 26, CAN communication module 4 include CAN driving electricity
Road 6-1 and photoelectric isolating circuit 6-2.Each transducing signal is transmitted by shielding line with control module 1 by sensing and obtained, sensing letter
Number input interface is aviation plug.And transducing signal pretreatment and motor drive module 2, microprocessor 3, CAN communication mould
Block 4 and power module 28 are closed in zinc-plated iron-clad shielding box.
Each measurement and control device 7 include the pretreatment of first via transducing signal and motor drive module 2, the second tunnel
Transducing signal pre-processes to be sensed with motor drive module 9, the 3rd road transducing signal pretreatment with motor drive module 11, the 4th tunnel
Signal Pretreatment and motor drive module 13, microprocessor 3 and CAN communication module 4, by a microprocessor 3 to four
Transducing signal on anode rod is handled and communicated with distributed current signal Centralized Controller.
Described sensing measures the pressure and control of potential difference, temperature, probe to guide rod on anode rod with control module 1
The distance of manufacturing probe and guide rod, anode rod 1-1 voltage signals are measured by the probe of fixed range on insulation board 1-4,
To make device volume not excessive, the distances of two probes is arranged to 10cm, the potential difference very little between two probes, for can be accurate
The voltage signal of measurement anode rod just needs to be amplified and filter, the voltage differential signal access transducing signal of probe measurement
Pre-amplification circuit 18 in pretreatment and motor drive module 2.Described two-stage amplifying circuit is as shown in Figure 3.
Described pre-amplification circuit 18 uses instrument amplifier, because detection anode rod is close to high-tension electricity source, electricity
Stream detection amplifier needs very high anti-common-mode voltage ability, and instrument amplifier has high cmrr.For example, using
The instrument amplifier AD620SQ of ADI companies, -40 DEG C~+125 DEG C chips of operating temperature have high accuracy (maximum nonlinearity
40ppm), low maladjustment voltage (50 μ V of maximum) and low offset drift (0.6 μ V/ DEG C of maximum) characteristic, it is accurate number that operating temperature, which is,
According to the choosing of the ideal of acquisition system, the characteristic with low noise, low input bias current and low-power consumption.
Described reception amplifying circuit 19 is further amplified using rail-to-rail amplifier to anode rod voltage signal, is connect
Receive amplifying circuit 19 and the signal after amplification is inputted into five rank low-pass filter circuits 20.For example, receiving amplifying circuit uses ADI companies
Rail-to-rail output type operational amplifier A DA4522-1ARZ, -40 DEG C~+125 DEG C of operating temperature, the amplifier has drift
Input can arrive the characteristic of 0V and rail-to-rail output when shifting, low noise, low-power consumption, single supply power supply, have wide operating voltage with
Temperature range, high open-loop gain, extremely low direct current and error is exchanged, minimum input signal can be amplified and reproduce larger letter
Number.
Described filter circuit uses five rank low-pass elliptic filters 20, the voltage signal frequency scope of input 0~
10Hz, five rank low pass ellipse filter circuit cut-off frequencies of design are 10Hz, and filter circuit is as shown in figure 5, the wave filter uses
Active power filtering, amplifier use AD8599ARZ, and operating temperature is -40 DEG C~+125 DEG C, and one is accessed in the input of filter circuit
Individual voltage follower.
Described temperature sensor 15 measures the temperature of anode rod, because the utility model is to measure sun by ohm method
The electric current of pole guide rod, the resistance of the voltage obtained by measurement and anode rod fixed range seek electric current, and the resistance of anode rod
Value changes with temperature, needs to carry out temperature-compensating for that can measure accurate current value, temperature sensor 15 is arranged on insulation
On plate 1-4, using three-wire system temperature measurement circuit, the signal that temperature sensor measures need to be nursed one's health, and temperature signal regulation circuit is such as
Shown in Fig. 4, including bridge for measuring temperature and source of stable pressure and voltage follower, amplifying circuit.Bridge for measuring temperature is accessed at temperature sensor both ends,
Source of stable pressure is powered to electric bridge, the differential voltage access instrument amplifier AD620SQ of the bridge arm of electric bridge two, and -40 DEG C of operating temperature~+
125℃。
For example, temperature sensor uses high-precision platinum resistance thermometer sensor, PT1000, it is powered using constant pressure source, voltage-stablizer uses
Adjustable shunt regulator TL432, temperature measurement circuit use bridge-type thermometric, are provided by the adjustable shunt regulator TL432 of three terminals steady
Fixed voltage signal, by the regulation of non-essential resistance, output reference voltage can change between 2.5V to 36V, and TL432
Output noise is low, and voltage follower AD8691AUJZ-R2, work are connect in voltage stabilizing source output terminal to strengthen the carrying load ability of source of stable pressure
Make temperature as -40 DEG C~+125 DEG C, voltage follower output connects electric bridge, and the voltage difference of the bridge arm of electric bridge two is transferred to institute through shielding line
State transducing signal pretreatment and motor drive module.
Described temperature voltage signal conditioning module 24 is amplified to the signal that temperature sensor measures, and is done for anti-common mode
Disturb, amplifier uses instrument amplifier, for example with the AD620SQ of ADI companies production.
Described pull pressure sensor module measurement insulation touch panel 1-4 changes thrust signal to the thrust of anode rod
Pull pressure sensor 1-2 Signal-regulated kinases are input to for voltage signal to be nursed one's health, pull pressure sensor 1-2 installation sites are such as
Shown in Fig. 7, when micro-processor control device is close to anode rod 1-1, push rod 1-3 is by motor pushing toward anode rod 1-1 side
To movement, when touch panel 1-4 contacts anode rod 1-1, push rod 1-3 will be by anode rod 1-1 reaction force, pressure
Pressure value is just converted to voltage signal by sensor 1-2, there is provided is analyzed to microprocessor.For example, pull pressure sensor is adopted
With JLMB-1 bellows-type pull pressure sensor, the sensor bulk is small, can measure 100N or so pressure, and pull pressure sensor is adjusted
Reason circuit uses instrument amplifier AD620SQ.
Described 24V stepper motors 17 receive sends the control signal driven through driver 26 by microprocessor 3, and control passes
Sensor and the installation and removal of control module 1, moving forward and backward for push rod 1-3 is promoted, stepper motor is relative to DC MOTOR CONTROL
More precisely, for the movable more accurate of control metering contact.For example, stepper motor uses the line stepper motor of 2 phase 4
42BYGH4815, moment of torsion 0.5NM.
The control signal that microprocessor 3 exports is converted to Driving Stepping Motor operation by described stepper motor driver 26
Electric signal, improve output voltage and output current, drive circuit it is as shown in Figure 2.For example, produced using ST Microelectronics
Stepper motor driver chip L298N, the chip operating voltage is high, reaches as high as 46V, output current is big, and peak value reaches as high as
3A, power 25W, operating temperature are -40 DEG C~+150 DEG C.
Described A/D drive modules 21 use voltage follower, play buffering, isolation, improve load capacity.Example
Such as, A/D drive modules are set to 1 using amplifier AD8691 as voltage follower, multiplication factor.
Described MUX 22 is sensed by control selections anode rod voltage signal, the pressure of microprocessor 3
One of device signal and temperature sensor signal are transferred to microprocessor 3, reduce the use of component.For example, multi-path choice
Device 22 is using the low voltage CMOS analog multiplexer ADG708BRU of AD companies, -40 DEG C~+125 DEG C of operating temperature.Microprocessor
The signal that device control MUX selection passes through, the signal of MUX output is through signal isolation circuit input microprocessor
Carry out A/D conversions.
Described signal isolation module 23 uses analog signal isolating amplifier, can be effectively isolated input and microprocessor
Device 3, protect microprocessor.For example, the analog signal precision isolated amplifier of analog signal isolating amplifier selection TI companies
ISO120SG, operating temperature are -55 DEG C~+125 DEG C, sensor signal input microprocessor progress after signal isolation of selection
A/D is changed, and analog voltage signal is converted to data signal.
The sensor analog signals of input are converted to data signal by described microprocessor 3, and by calculating temperature
Value and anode rod magnitude of voltage are converted to current value, and microprocessor 3 passes through CAN 5 and distributed current signal Centralized Controller 6
Being communicated, current value, the guide rod label that measurement obtains are transferred to distributed current signal Centralized Controller 6 by microprocessor 3, point
Cloth current signal Centralized Controller 6 is transferred to microprocessor 3 to the control signal of measurement apparatus by CAN 5, by microprocessor
The controlled motor of device 3 is run.For example, using the STM32F407ZGT7 of ST Microelectronics as microprocessor, the integrated chip
12 A/D converters and CAN communication interface, can reduce external number of chips, reduce cost, reduce equipment volume.
Described CAN communication module 4 includes CAN drive circuits 6-1 and digital isolation circuit 6-2, and microprocessor 3 is logical
Real-time, reliable and high speed data communication between each node of system can be realized by crossing CAN.For example, CAN drive circuits 6-1
Using TI CAN transceiver interface chip SN65HVD233SJD, signal rate can adapt to rugged environment bar up to 1Mbps
Part, operating temperature are -55 DEG C~+210 DEG C, using unshielded multiple twin or parallel cable, overvoltage and short circuit event with ± 36V
Hinder protective value and ± 100V common mode transient protection performance.ISO7221MD of the light every chip using TI companies, operating temperature-
40 DEG C~+125 DEG C, ISO7221MD is two-channel digital isolator, can withstand up to the voltage of 4000V peak-to-peak values, Ke Yiyou
Effect prevents the noise current on data/address bus from flowing into local signal loop, reduces interference of the noise to sensitive circuit.CAN is led to
Believe that module is as shown in Figure 6.
Described power module 28 uses Switching Power Supply and DC/DC change-over circuits, and outside 220V voltages arrive through cable transmission
Current sensing means, 24V direct currents are converted to through Switching Power Supply, power module 28 needs to supply to current sensing means modules
Electricity, and the operating voltage of part of module is less than 24V, 24V is converted to each module normal working voltage by DC/DC change-over circuits.
Fig. 8 show distributed current signal Centralized Controller 8-6, and one electrolytic cell of control is multiple (generally 36 or 48)
Measurement apparatus measurement and executing agency 8-1 disassembly and installation, control signal on anode rod are transmitted by CAN 8-5
To measurement and control device 8-7, each measurement measures the current signal on 4 anode rod 8-4 with control device 8-7, and
Control 4 drive test amounts and executing agency 8-1.Distributed current signal Centralized Controller 8-6 is by network by the electrolytic cell surveyed
Distributed current signal inputs background server 8-8, and background server 8-8 preserves data and called for operating personnel, background server
8-8 is communicated with mobile digital terminal 8-10 by wireless network, and data carry out transfer by wireless access point 8-9.Entirely
The communication connection of each module of system is as shown in figure 8, wherein, distributed current signal Centralized Controller 8-6 and measurement and control device
8-7 is connected by CAN, and is connected with background server 8-8 by Ethernet, mobile digital terminal module 8-10 and backstage
Server 8-8 is connected by wireless network.
Wherein, mobile digital terminal module is developed in Android platform, and the module carrier is mobile terminal, the shifting
Moved end is communicated by wireless network with background server, and user logs in APP clients and enters system, can be with by the software
The data of background server are called, mobile terminal can be with each anode rod current measurement point of every aluminium cell of graphic software platform
And number, check that form, display guide rod distributed current are schemed in real time, the peace installation and dismantling of each measurement point executing agency of Remote
Unload, sent to background server and compress or unclamp instruction, the control command that user sends in mobile terminal is through being wirelessly transmitted to backstage
Server, background server transfer the instructions to distributed current signal Centralized Controller, distributed current signal collection by Ethernet
Instruction is communicated to corresponding anode rod current measuring device, the compression of measurement apparatus or pine corresponding to realization by middle controller
Open.
To sum up, the working method of aluminium electrolysis anode guide rod distributed current measurement and control system provided by the utility model
For：Thrust signal of the sensing with control module detection anode rod voltage signal, temperature signal and measurement end to guide rod, and according to
The operation for the control signal controlled motor that microprocessor is sent；Transducing signal pre-processes and motor drive module is to the sensing of collection
Device signal is amplified and filtered respectively, drives A/D conversions, signal isolation and motor operation；Microprocessor is by collection
Each sensor analog signals are converted to data signal and further calculated, and lead to distributed current signal Centralized Controller CAN
Letter, controlled motor；Distributed current signal Centralized Controller carries out network service with background server, and background server receives data
And preserve；Mobile digital terminal is communicated by wireless network with background server, display current data and control electric current detection control
Device processed.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device, it is characterised in that including：Sensing and control mould Block, transducing signal pretreatment and motor drive module, microprocessor, CAN communication module, power module；Wherein, the sensing includes four tunnels sensing and control module with control module, and the transducing signal pretreatment and motor drive Dynamic model block includes four road transducing signal pretreatments and motor drive module, per sensing all the way with control module with believing per sensing all the way Number pretreatment and motor drive module correspond electrical connection, and per transducing signal all the way, pretreatment and motor drive module be and institute Microprocessor electrical connection is stated, and is set per between the pretreatment of transducing signal all the way and motor drive module and the microprocessor Signal isolation module, the microprocessor electrically connect with the CAN communication module, the power module and the microprocessor Device, the sensing and control module, transducing signal pretreatment and motor drive module and the CAN communication module Connection.
- 2. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 1, it is characterised in that described Sensing includes temperature sensor, pull pressure sensor, equidistant voltage measurement contact and stepper motor with control module, wherein, institute State temperature sensor and use PT1000 platinum resistance thermometer sensor,s, the pull pressure sensor uses bellows-type pull pressure sensor, the step Stepper motor uses 24V small type stepping motors.
- 3. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 2, it is characterised in that described Equidistant voltage measurement contact uses gold plated contact.
- 4. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 2, it is characterised in that described Transducing signal pre-processes and motor drive module includes low-voltage amplifying circuit, filter circuit, temperature signal regulation circuit, tension and compression Force signal modulate circuit, stepper motor driving circuit, A/D drive circuits and signal isolation circuit, wherein, low-voltage amplification electricity Road, filter circuit and A/D drive circuits are sequentially connected in series, and temperature sensor, temperature signal regulation circuit and A/D drive circuits are successively Series connection, pull pressure sensor, pressure signal conditioning circuit and A/D drive circuits are sequentially connected in series, and stepper motor, stepper motor drive Dynamic circuit and signal isolation circuit are sequentially connected in series.
- 5. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 4, it is characterised in that described Low-voltage amplifying circuit is amplified using two-stage, respectively preposition amplification and reception amplification, wherein preposition amplification is using ADI companies AD620 instrumentation amplifiers, reception amplifier use the rail-to-rail Auto zeroing amplifier AD8629 of ADI companies, and the filter circuit is adopted With 5 rank low pass ellipse filter circuits.
- 6. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 1, it is characterised in that described Microprocessor uses the technical grade chip STM32F407ZGT7 with CAN communication interface of ST Microelectronics's production.
- 7. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 1, it is characterised in that described Sensing and control module and transducing signal pretreatment and motor drive module use band screen layer twisted pair line connection.
- 8. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 1, it is characterised in that described Transducing signal pre-processes and motor drive module, the microprocessor, the CAN communication module and power module envelope Close in zinc-plated iron-clad shielding box.
- 9. aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device according to claim 1, it is characterised in that described CAN communication module includes CAN drive circuits and photoelectric isolating circuit, and CAN drive circuits use the industry of TI companies production Level CAN driving chip SN65HVD233SJD chips, photoelectric isolating circuit use the light of TI companies every chip I SO7221MD, and CAN drive circuits and CAN cable connection, interface are used uniformly aviation plug.
- 10. a kind of aluminium electrolysis anode guide rod distributed current measurement and control system, it is characterised in that including distributed current signal collection Middle controller, background server, mobile digital terminal module and the aluminium electroloysis sun as described in claim 1 to 8 any one Pole guide rod distributed current Detection ＆ Controling device；Wherein, the distributed current signal Centralized Controller and the aluminium electrolysis anode guide rod distributed current Detection ＆ Controling device Connected by CAN, and be connected with the background server by Ethernet, the mobile digital terminal module with it is described after Platform server is connected by wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459352.2U CN206858674U (en) | 2017-04-25 | 2017-04-25 | A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459352.2U CN206858674U (en) | 2017-04-25 | 2017-04-25 | A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system |
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| Publication Number | Publication Date |
|---|---|
| CN206858674U true CN206858674U (en) | 2018-01-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501561A (en) * | 2019-09-27 | 2019-11-26 | 贵阳铝镁设计研究院有限公司 | Aluminum cell anodic current is distributed on-line detecting system and its method |
| CN110656355A (en) * | 2019-11-06 | 2020-01-07 | 贵阳铝镁设计研究院有限公司 | Clamp of aluminum cell anode current distribution detection device |
| CN112509303A (en) * | 2020-11-29 | 2021-03-16 | 承德石油高等专科学校 | Anode current collecting system based on wireless transmission |
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2017
- 2017-04-25 CN CN201720459352.2U patent/CN206858674U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501561A (en) * | 2019-09-27 | 2019-11-26 | 贵阳铝镁设计研究院有限公司 | Aluminum cell anodic current is distributed on-line detecting system and its method |
| CN110656355A (en) * | 2019-11-06 | 2020-01-07 | 贵阳铝镁设计研究院有限公司 | Clamp of aluminum cell anode current distribution detection device |
| CN112509303A (en) * | 2020-11-29 | 2021-03-16 | 承德石油高等专科学校 | Anode current collecting system based on wireless transmission |
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