CN201084012Y - Air conditioner frequency conversion controller intelligent detection system - Google Patents

Air conditioner frequency conversion controller intelligent detection system Download PDF

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Publication number
CN201084012Y
CN201084012Y CNU2007201700336U CN200720170033U CN201084012Y CN 201084012 Y CN201084012 Y CN 201084012Y CN U2007201700336 U CNU2007201700336 U CN U2007201700336U CN 200720170033 U CN200720170033 U CN 200720170033U CN 201084012 Y CN201084012 Y CN 201084012Y
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Prior art keywords
information
frequency
air conditioner
controller
host computer
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Expired - Fee Related
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CNU2007201700336U
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Chinese (zh)
Inventor
王蕴华
王志新
李红旗
王海旭
康凯
王雷
田信灵
黄颖
张明磊
王涛
王鸿祥
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Beijing University of Technology
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Beijing University of Technology
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Abstract

The utility model discloses an intelligent detecting system for a frequency controller used for an air conditioner, comprising a lower computer used for testing the output information of the frequency controller, and a host computer connected with the lower computer. The utility model is characterized in that: the lower computer is the information receiving device of the test system; the host computer is provided with a parameters control information database of the working condition of the refrigeration system; the host computer compares the information obtained from the lower computer with the information database to judge the working state of the refrigeration system, then transmits corresponding value of the processed information by characteristics simulation of a sensor to the lower computer, the lower computer transforms the received information into analog information and feeds back to the frequency controller. The utility model has the advantages of ability to get the performance of the whole frequency conversion air-conditioning system, ability to provide a detection mode to the production firm of the frequency conversion air-conditioner, and ability to be applied to the detection for industrial automatic frequency controller.

Description

A kind of frequency conversion controller of air conditioner intelligent checking system
Technical field
The utility model relates to a kind of intelligent checking system, particularly a kind of frequency conversion controller of air conditioner intelligent checking system that adopts the simulation air-conditioning refrigeration system.
Background technology
The trend of current air conditioner development is energy-saving and environmental protection, Based Intelligent Control.Transducer air conditioning has caused the great attention of domestic and international academia and refrigeration industry circle with advantages such as its remarkable energy saving, good comfort, high-precision temperature controls, has also catered to the requirements at the higher level of consumer to the live and work amenity simultaneously.In the research and development process of transducer air conditioning, the quality of frequency-variable controller control performance, situation about cooperating with air conditioner become domestic air conditioner and controller factory questions of common interest.Therefore, the appearance of variable frequency air-conditioner controller test macro provides the means of testing of a detection convertible frequency air-conditioner performance, by it, can obtain the performance of whole frequency-conversion air-conditioning system, can provide a kind of detection mode for convertible frequency air-conditioner production firm.Development to domestic convertible frequency air-conditioner can be played very big effect.In addition, the frequency-variable controller test macro also can be used for the detection of industrial automation frequency-variable controller.
At present, also not having a kind of device that is specifically designed to the convertible frequency air-conditioner test on the market, mainly is the close beta of oneself being carried out by each air-conditioning production firm, does not form unified testing standard.But, Xiang Guan electronic technology and computer technology are quite ripe therewith, just also do not develop and design at this concrete utilization, at the trend of present this situation and convertible frequency air-conditioner development, have stronger specific aim and practicality in conjunction with the frequency-variable controller test macro of designs such as electronic technology, computer technology and air conditioner controlling technology.
Summary of the invention
The purpose of this utility model is, by a kind of frequency conversion controller of air conditioner intelligent checking system is provided, with the problem that exists in the link that solves the performance test in present variable frequency air-conditioner controller development and the performance history, design and develop out a kind of intelligent test system that integrates functions such as test, analysis, evaluation at frequency-variable controller.
The utility model is that mentality of designing is as follows:
The utility model is modeled as fan, compressor and the air conditioner that moves with pick-up unit in refrigeration system, frequency-variable controller as controller by rotating speed, the fan of control compressor start-stop and refrigeration system in the switch of some valves reach the purpose of control air conditioner.Frequency-variable controller only learns whether compressor is overheated, everywhere temperature in the refrigeration system, and frequency-variable controller just can know how to control like this, and as raising frequency, frequency reducing, the control fan waits soon or slowly.And these all are just can make the variable frequency control sensor obtain corresponding information by sensor, make control corresponding.
Therefore, test macro will even comprise that exactly sensor simulates to controll plant-fan, compressor and air conditioner, substitutes the device of actual motion in the refrigeration system with our test macro.In fact test macro has played the effect of a controll plant and sensor.
The utility model is to adopt following technological means to realize:
A kind of frequency conversion controller of air conditioner intelligent checking system comprises frequency-variable controller and output unit thereof; It is characterized in that: described intelligent checking system is made up of slave computer and the connected host computer finished the test of frequency-variable controller output information; Described slave computer is the device of tested system; Be provided with the duty parameter information bank of refrigeration system in the described host computer; Described host computer will carry out relatively judging with the information of information bank the duty of refrigeration system from the information that slave computer obtains, the characteristic by sensor again with the information after handling, obtain corresponding output valve and be sent to slave computer, slave computer is an analog information with the information translation of its reception, feeds back to frequency-variable controller.
Aforesaid tested system comprises electric fan, compressor and the sensor of air conditioner.
Aforesaid slave computer comprises: PWM pulse width modulated wave pick-up unit, switch control detection device, analog sensor, single-chip microcomputer and serial communication interface are formed;
Described single-chip microcomputer and PWM pulse width modulated wave pick-up unit and analog sensor carry out the information bidirectional transmission, are connected with aforementioned host computer by serial communication interface.
Aforesaid host computer also comprises: signal conditioning package, information query device and information display device.
Main mode when using a kind of frequency conversion controller of air conditioner intelligent checking system to detect is: finish information acquisition by the analogue means slave computer, finish information processing by host computer; Information feedback comprises: the process that information transmission and reception between slave computer and the host computer, host computer instruct transmission and slave computer that the control signal of frequency-variable controller is transmitted to slave computer.
A kind of frequency conversion controller of air conditioner intelligent checking system of the utility model compared with prior art, has following remarkable advantages and beneficial effect:
Whole test system depends on the True Data of the refrigeration system of being stored in the accurate measurement of slave computer and feedback and the host computer.Data will be provided by the professional of refrigeration, therefore make the platform of an energy according to True Data reflection truth.Host computer can also provide the good man-machine interaction interface except that the function with data query, view, can carry out some according to professional's specific (special) requirements and set, thereby reach the purpose that its performance is controlled in test; Because the test of frequency-variable controller control signal relates to some algorithm, can need not to change the hardware circuit of slave computer according to the dissimilar parameters that change easily in the algorithm of test in host computer like this.
The appearance of variable frequency air-conditioner controller test macro provides the means of testing of a detection convertible frequency air-conditioner performance, by it, can obtain the performance of whole frequency-conversion air-conditioning system, can provide a kind of detection mode for convertible frequency air-conditioner production firm.In addition, the frequency-variable controller test macro also can be used for the detection of industrial automation frequency-variable controller.
Description of drawings
Fig. 1 is a frequency conversion controller of air conditioner intelligent checking system synoptic diagram;
Fig. 3 is the device synoptic diagram of convertible frequency air-conditioner;
Fig. 3 is a frequency conversion controller of air conditioner intelligent checking system high-level schematic functional block diagram;
Fig. 4 is fan and four-way valve relay control synoptic diagram;
Fig. 5 is fan or four-way valve test circuit synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:
Convertible frequency air-conditioner is made up of compressor, frequency-variable controller and air conditioner (refrigeration system) three parts, its work block diagram is as shown in Figure 3: wherein, fan, compressor and air conditioner just are the equal of a controll plant, frequency-variable controller as controller by rotating speed, the fan of control compressor start-stop and refrigeration system in the switch of some valves reach the purpose of control air conditioner.The same with any closed-loop system, frequency-variable controller need be learnt the state of controll plant equally, only learns whether compressor is overheated, everywhere temperature in the refrigeration system, and frequency-variable controller just can know how to control like this, as raising frequency, frequency reducing, the control fan waits soon or slowly.And these all are just can make the variable frequency control sensor obtain corresponding information by sensor, make control corresponding.
Therefore, test macro will even comprise that exactly sensor simulates the part that fine rule enclosed in the test macro alternate figures with us to controll plant-fan, compressor and air conditioner.In fact test macro has played the effect of a controll plant and sensor.
The transducer air conditioning controller comprises outdoor controller, indoor set controller and liquid crystal telepilot three parts.Wherein outdoor controller is made of control panel, starting resistance, EMC wave filter, Intelligent Power Module, electrolytic capacitor filter and power factor corrector etc.; The indoor set controller is made of telepilot, power panel and starting relay etc.; Telepilot is strong by LCD, single-chip microcomputer, operation, infrared emission circuit, battery low-voltage testing circuit and temperature sensor etc. are formed.
Frequency-variable controller mainly is to realize by its control to compressor rotary speed to the control of air-conditioning, the rotating speed of compressor has determined air conditioner (refrigeration system) thereby the flow velocity of middle cold-producing medium has determined the refrigeration of air-conditioning, say to be exactly the height that frequency has determined its work efficiency from another angle, thereby determined the ability of air-conditioning heat interchange; What current AC frequency conversion controller generally adopted is PWM pulse width modulation frequency changing technology, this control signal should be pwm control signal, this voltage of signals/frequency characteristic should be identical with the desired voltage-frequency curve of compressor, if different compressor operating efficient reduced and compressor is caused in various degree infringement, therefore test macro will detect frequency change control signal, write down its voltage-frequency curve, and carry out feeding back to frequency-variable controller after the corresponding analyzing and processing according to detected each frequency constantly.
In addition, controller is by controlling the direction that decides flow of refrigerant to the four-way valve switch; Frequency-variable controller has played the heat radiation of acceleration heat radiator to the control of outdoor machine fan, promotes the effect of heat interchange, and this two paths of signals all is to control the purpose that reaches control by the switch of forceful electric power.
Controller is except that the output control signal, also need the detection signal of input pickup feedback, and generally speaking, what transmit between sensor and the controller is a kind of electric signal, controller output is associated with the sensor input, so this feeds back corresponding signal to analog sensor and brings bigger difficulty.In convertible frequency air-conditioner; the main at present sensor that uses is a thermistor; being used for the monitoring to refrigeration system diverse location temperature, is just can use under special circumstances as for some so-called protection, can't have influence on the dry run of total system under the closed loop condition.Therefore, mainly thermistor is simulated, utilize controlled digital resistance to come place of thermistors.
Because test macro need be to mainly being that refrigeration system is simulated, just with the temperature variation of different controlled devices and controlled point reflecting strictly according to the facts, feed back to controller, and this is to need to rely on the True Data of refrigeration system in actual motion to realize.Can only preserve the real data of refrigeration system under different operating modes with the form of database.
A kind of frequency conversion controller of air conditioner intelligent checking system of the present utility model comprises frequency-variable controller and output unit thereof; Described intelligent checking system is made up of slave computer and the connected host computer finished the test of frequency-variable controller output information; Described slave computer is the analogue means of tested system; Be provided with the standard control information storehouse of refrigeration system in the described host computer; Described host computer will carry out relatively judging with the information of information bank the duty of refrigeration system from the information that slave computer obtains, the characteristic by sensor again with the information after handling, obtain corresponding output valve and be sent to slave computer, slave computer is an analog information with the information translation of its reception, feeds back to frequency-variable controller.
Aforesaid tested system comprises electric fan, compressor and the sensor of air conditioner.
Aforesaid slave computer comprises: PWM pulse width modulated wave pick-up unit, switch control detection device, analog sensor, single-chip microcomputer and serial communication interface are formed;
Described single-chip microcomputer and PWM pulse width modulated wave pick-up unit and analog sensor carry out the information bidirectional transmission, are connected with aforementioned host computer by serial communication interface.
Aforesaid host computer also comprises: signal conditioning package, information query device and information display device.
For clearer technical characterictic of the present utility model is illustrated, in this notion of using host computer and slave computer, as shown in Figure 1, wherein 6 is slave computer, and 8 is host computer; Slave computer 6 comprises single-chip microcomputer 61 and serial communication interface unit 62; Host computer comprises database 810 as shown in Figure 3, data processing unit 820, data recording unit 830; Wherein there are temperature-frequency-time curve, pressure-frequency-time curve, electrical quantity-frequency-time curve data in the database;
Finish test by slave computer 6 to the frequency-variable controller output signal, with the PWM control data 26 that records, switch state of a control 250, the relevant information of Sensor Analog Relay System data 240 and compressor simulated data 230 is sent to host computer 8, host computer 8 judges according to the control signal that obtains which kind of operating mode is refrigeration system be in, find the temperature variation curve of corresponding experience data-diverse location, find next temperature value constantly according to curve, characteristic (as the temperature resistance curve of thermistor) by sensor again, obtain corresponding output valve (as resistance) and be sent to slave computer, utilize slave computer 6 simulation corresponding feedback signals (as resistance), feed back to frequency-variable controller.So just can be at regular intervals, the acquisition controller control signal is fed back and the actual corresponding feedback signal of refrigeration system according to control signal, and so circulation just can be finished closed loop test repeatedly.
See also shown in Figure 3ly, be frequency conversion controller of air conditioner intelligent checking system high-level schematic functional block diagram; Please contrast shown in Figure 1; The Sensor Analog Relay System 240 of input parameter 300 (original sensor) corresponding diagram 1 among Fig. 3; The compressor simulation 230 of fictitious load 320 corresponding diagram 1 among Fig. 3; The host computer 8 of 80 among Fig. 3 and data input--database or printing frame corresponding diagram 1 all is the function that host computer 8 will be finished; A/D conversion 320 among Fig. 3 and D/A conversion 310 PWM that are encompassed in Fig. 1 control in 26 functions, belong to interface circuit 62; Controller 510 among Fig. 3, telepilot 513, parameter setting 515 and output parameter frame 330 are functions of the remote control panel and the interior frequency-variable controller of self machine of former air conditioner.Switch control detection 250 is fan switch control detection and the four-way valve switch control detection in the output parameter frame 330 among Fig. 3, also belongs to interface circuit 62.Above-mentioned controller 510 comprises indoor control 511 and outdoor control 512.
Below, the monitoring of 4,5 explanation fans and four-way valve in conjunction with the accompanying drawings:
See also shown in Figure 4, the control of fan and four-way valve is exactly the switch control by forceful electric power usually, for this controller to the convertible frequency air-conditioner tested is tested, its control mode is exactly to control the switching of the different gears of fan and the unlatching of reversal valve by cut-offfing of solid-state relay.Wherein, CZ502 is for exchanging input, and RL50x is a solid-state relay, and blue line is for providing fan power supply common port (zero line), palm fibre, yellow, black fast for fan, in, slow 3 grades of power inputs (live wire).When the brown line line of starting to exchange fire, fan is quick; The black line line of starting to exchange fire, fan is at a slow speed; Blue line is a common port.
When our test controller, be not need wind-receiving fan, therefore only need measure palm fibre, Huang, black which end of 3 ends has forceful electric power to get final product, and the measuring principle of reversal valve is identical with it.
Consult shown in Figure 5, its principle becomes dc low-voltage signal and is linked into relay for the power supply dividing potential drop with the power supply of fan or four-way valve is linked into rectifier bridge, fan or four-way valve have the folding of non-transformer with pilot relay, the folding signal outputs to single-chip microcomputer by the 74LS244 shaping and detects, thereby can detect fan or four-way valve has or not break-make.R21 is a high-power resistance, adopts rectifier bridge that the voltage of relay 1,8 pin is carried out full-wave rectification, carries out filtering by C12 electric capacity; Diode has played the effect of afterflow; The relay of selecting for use is when 1,8 pin voltages during greater than 12V, the relay adhesive, and the resistance between relay 1,8 pin is about 1K Ω, with the R21 dividing potential drop of 16K Ω, the about 13mA of current effective value, R21 power gets final product greater than 3W; As circuit diagram, when the relay adhesive, 5,7 is logical, and 2,4 is logical, and 2,7 pin current potentials are low, otherwise then are high, have so just converted having or not of forceful electric power to digital signal, have also accomplished isolation simultaneously; Only need at regular intervals, state is read the monitoring that to finish fan control, reversal valve state of a control on the data line by the 74LS244 gate circuit with single-chip microcomputer.
Above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this instructions has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of invention, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (4)

1. a frequency conversion controller of air conditioner intelligent checking system comprises frequency-variable controller and output unit thereof; It is characterized in that: described intelligent checking system is made up of slave computer and the connected host computer finished the test of frequency-variable controller output information;
Described slave computer is the information receiver of tested system;
Be provided with the duty parameter control information storehouse of refrigeration system in the described host computer;
Described host computer will carry out relatively judging with the information in above-mentioned control information storehouse the duty of refrigeration system from the information that slave computer obtains, the simulated behavior by sensor again with the information after handling, corresponding output valve is sent to slave computer, slave computer is an analog information with the information translation of its reception, feeds back to frequency-variable controller.
2. frequency conversion controller of air conditioner intelligent checking system according to claim 1 is characterized in that: described tested system comprises electric fan, compressor and the sensor of air conditioner.
3. frequency conversion controller of air conditioner intelligent checking system according to claim 1 is characterized in that: described slave computer comprises: PWM pulse width modulated wave pick-up unit, switch control detection device, analog sensor, single-chip microcomputer and serial communication interface are formed;
Described single-chip microcomputer and PWM pulse width modulated wave pick-up unit and analog sensor carry out the information bidirectional transmission, are connected with aforementioned host computer by serial communication interface.
4. frequency conversion controller of air conditioner intelligent checking system according to claim 1 is characterized in that: described host computer also comprises: signal conditioning package, information query device and information display device.
CNU2007201700336U 2007-08-03 2007-08-03 Air conditioner frequency conversion controller intelligent detection system Expired - Fee Related CN201084012Y (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949779A (en) * 2010-08-17 2011-01-19 广东志高空调有限公司 On-line performance test system of variable-frequency air conditioning outdoor unit
CN102323760A (en) * 2011-07-07 2012-01-18 华中科技大学 Semiphysical test method and device of air conditioner control system
CN101799364B (en) * 2009-02-10 2012-11-21 珠海格力电器股份有限公司 Testing device and testing method for variable-frequency air conditioner controller
CN103631146A (en) * 2012-08-24 2014-03-12 珠海格力电器股份有限公司 Test system of air conditioner controller and carbon dioxide concentration sensor simulation device
CN104246633A (en) * 2012-02-21 2014-12-24 丹佛斯公司 Method for configuring a refrigeration system
CN104407249A (en) * 2014-11-27 2015-03-11 四川长虹空调有限公司 Test system of refrigeration equipment
CN104501349A (en) * 2014-11-03 2015-04-08 宁波奥克斯空调有限公司 Detection device for frequency conversion air-conditioner controller
CN106123202A (en) * 2016-06-15 2016-11-16 珠海格力电器股份有限公司 Acquired data autonomous adjusting method and device, sensor and application thereof
CN106596154A (en) * 2016-11-18 2017-04-26 浙江工业大学 Variable frequency refrigerating compressor load starting and operation performance test system
CN108363384A (en) * 2018-02-11 2018-08-03 四川虹美智能科技有限公司 A kind of test system of air conditioner variable-frequency controller
CN110514984A (en) * 2019-09-09 2019-11-29 广东合立鼎峰科技有限公司 A kind of multifunction circuit board intelligent detecting instrument

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101799364B (en) * 2009-02-10 2012-11-21 珠海格力电器股份有限公司 Testing device and testing method for variable-frequency air conditioner controller
CN101949779A (en) * 2010-08-17 2011-01-19 广东志高空调有限公司 On-line performance test system of variable-frequency air conditioning outdoor unit
CN102323760A (en) * 2011-07-07 2012-01-18 华中科技大学 Semiphysical test method and device of air conditioner control system
US9879892B2 (en) 2012-02-21 2018-01-30 Danfoss A/S Method for configuring a refrigeration system
CN104246633A (en) * 2012-02-21 2014-12-24 丹佛斯公司 Method for configuring a refrigeration system
CN103631146A (en) * 2012-08-24 2014-03-12 珠海格力电器股份有限公司 Test system of air conditioner controller and carbon dioxide concentration sensor simulation device
CN104501349A (en) * 2014-11-03 2015-04-08 宁波奥克斯空调有限公司 Detection device for frequency conversion air-conditioner controller
CN104407249A (en) * 2014-11-27 2015-03-11 四川长虹空调有限公司 Test system of refrigeration equipment
CN106123202A (en) * 2016-06-15 2016-11-16 珠海格力电器股份有限公司 Acquired data autonomous adjusting method and device, sensor and application thereof
CN106596154A (en) * 2016-11-18 2017-04-26 浙江工业大学 Variable frequency refrigerating compressor load starting and operation performance test system
CN106596154B (en) * 2016-11-18 2019-05-31 浙江工业大学 Refrigerating Compressor with Inverter load starting and runnability test macro
CN108363384A (en) * 2018-02-11 2018-08-03 四川虹美智能科技有限公司 A kind of test system of air conditioner variable-frequency controller
CN110514984A (en) * 2019-09-09 2019-11-29 广东合立鼎峰科技有限公司 A kind of multifunction circuit board intelligent detecting instrument
CN110514984B (en) * 2019-09-09 2021-11-16 广东合立鼎峰科技有限公司 Multifunctional circuit board intelligent detector

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Granted publication date: 20080709