CN101324363B - Air conditioner monitoring system - Google Patents
Air conditioner monitoring system Download PDFInfo
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- CN101324363B CN101324363B CN2007101108367A CN200710110836A CN101324363B CN 101324363 B CN101324363 B CN 101324363B CN 2007101108367 A CN2007101108367 A CN 2007101108367A CN 200710110836 A CN200710110836 A CN 200710110836A CN 101324363 B CN101324363 B CN 101324363B
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Abstract
The invention discloses an air conditioner monitor system, which comprises a computer, an outdoor unit of the air conditioner and an indoor unit of the air conditioner. The outdoor unit is connected with the computer through data lines, and the computer acquires the parameter data of a MCU control chip of the outdoor unit through the data lines and analyzes the parameter data to display the specific parameter information. The air conditioner monitor system provided by the invention is used for providing accurate and real-time operation parameter data of the air conditioner.
Description
Technical field
The present invention relates to the monitoring field of air-conditioning, particularly a kind of air conditioner monitoring system.
Background technology
In the R﹠D process of air-conditioning, need split the new architecture air-conditioning that distributes and test and debug.Particularly when the machine system debugging of carrying out air-conditioning and functional verification, need test, could further improve the complete machine performance of air-conditioning the state of air conditioner system and each part.
Existing monitoring means, just by oscillograph, current clamp, checkout equipments such as stroboscope are measured the voltage of air-conditioning, electric current, frequency, basic parameters such as rotation speed of fan.Existing monitoring means can not reach in real time, at large show the supplemental characteristic of air-conditioning.
Prior art, in the process of the experiment of air-conditioning and monitoring, many parameters all can not directly obtain.The current running frequency of compressor for example, the current rotating speed of inside and outside blower fan, indoor set and off-premises station communications status etc. all need respectively by oscillograph, and instruments such as current clamp are tested, and bring many inconvenience to the developer.And utilize oscillograph, and can only test voltage, electric current, the parameter that running frequency etc. are the most basic, rotational speed meters can only be tested rotation speed of fan etc.Tested object is very single, can't monitor the state of air-conditioner various piece at synchronization in time comprehensively, and measured data are inconvenient to write down and store.And can't carry out all-the-way tracking to the operation conditions of air-conditioning.
Therefore how providing a kind of accurate, real-time monitoring system in the process of the experiment of air-conditioning and monitoring, be used to monitor each state parameter of air-conditioning system, is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide air conditioner monitoring system, the operational parameter data of the air-conditioning monitoring that is used to provide accurate, real-time.
Specifically, the embodiment of the invention provides a kind of air conditioner monitoring system, and described system comprises computer, air-conditioner outdoor unit, indoor apparatus of air conditioner;
Described indoor apparatus of air conditioner sends to the air-conditioner outdoor unit control chip with the parameter information of self; The supplemental characteristic of described air-conditioner outdoor unit control chip comprises the parameter information of described indoor set;
Described air-conditioner outdoor unit and described computer link together by data wire;
Described computer obtains the supplemental characteristic of described air-conditioner outdoor unit control chip by described data wire;
Described computer is used to resolve described supplemental characteristic, shows concrete parameter information.
Preferably, described air-conditioner outdoor unit control chip is connected by serial line interface with described computer.
Preferably, the PC communication port of described air-conditioner outdoor unit control chip connects the serial line interface of described computer by data wire.
Preferably, described computer further comprises the database of storing described concrete parameter information.
Preferably, described computer is set up text control in advance; Described computer is by showing the supplemental characteristic of described air-conditioner outdoor unit control chip in the described text control; Described computer is according to described supplemental characteristic drawing waveforms figure.
Preferably, the supplemental characteristic that described computer obtains is to be the data of unit with the frame, represents by high-low level.
Preferably, described high-low level is represented concrete numerical value or is represented predefined specifying information.
Preferably, each frame of described supplemental characteristic comprises start bit, data bit, parity check bit, position of rest.
The described air-conditioning monitoring method of the embodiment of the invention, the ruuning situation of monitoring air-conditioning that can be accurate, real-time.Because the described air-conditioning monitoring method of the embodiment of the invention, by computer and the air-conditioner outdoor unit that will monitor are connected, because the indoor apparatus of air conditioner control chip can send to the parameter information of indoor set the control chip of described air-conditioner outdoor unit, therefore has whole supplemental characteristics on the control chip of described air-conditioner outdoor unit.Therefore the described computer supplemental characteristic that only need gather the control chip of described air-conditioner outdoor unit just can obtain whole supplemental characteristics of described air-conditioning.Described computer shows the concrete parameter information that parses at last again by resolving the supplemental characteristic that it collects.Therefore, the described method of the embodiment of the invention provides a kind of method of gathering air conditioner operation parameters accurately, in real time.
Description of drawings
Fig. 1 is first kind of example structure schematic diagram of system of the present invention;
Fig. 2 is the concrete course of work flow chart of the described system of Fig. 1.
The specific embodiment
The invention provides a kind of air conditioner monitoring system, be used to provide accurate, real-time air-conditioning monitoring parameter data.
In order to make those skilled in the art understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to shown in Figure 1, this figure is first kind of example structure schematic diagram of system of the present invention.
First kind of embodiment of system of the present invention, this system comprises computer 1, air-conditioner outdoor unit 2, indoor apparatus of air conditioner 3.
Described air-conditioner outdoor unit 2 links together by data wire 4 with described computer 1.
Described computer 1 obtains the supplemental characteristic of the MCU control chip 21 of described air-conditioner outdoor unit 2 by described data wire 4.
Described computer 1 is used to resolve described supplemental characteristic, shows concrete parameter information.
A connector is set on the automatically controlled plate of air-conditioner outdoor unit 2, and this connector is connected on the delivery outlet of control chip 21 of air-conditioner outdoor unit 2.This delivery outlet can be a computer communication delivery outlet.This delivery outlet on the control chip 21 of air-conditioner outdoor unit 2 is not common I/O mouth, be to be used for sending the delivery outlet of serial data specially into the asynchronous serial communication interface, this is the function that the control chip 21 of air-conditioner outdoor unit 2 itself has, the resource that can directly utilize.Drawing data wire 4 by this connector then is connected on the serial line interface of described computer 1.
The communication modes that adopts between the control chip 21 of the described system air conditioner off-premises station 2 of the embodiment of the invention and the serial line interface 11 of described computer 1 is a branch of serial communication, it is UART (UniversalAsynchronous Receiver/Transmitter, UART Universal Asynchronous Receiver Transmitter) communication.The characteristics of this communication modes are needn't the transmission clock signal, and described computer 1 sending and receiving end transmits and receive data by the unified baud rate of setting.Therefore, the data wire that the present invention connects between the serial line interface 11 of the control chip 21 of described air-conditioner outdoor unit 2 and computer 1 only needs two lines, and one to transmit data promptly high, low level, and another root is an earth connection.
Because first kind of described air conditioner monitoring system of embodiment of the present invention, described computer 1 links together by data wire 4 with the air-conditioner outdoor unit 2 that will monitor.Because indoor apparatus of air conditioner 3 control chips 31 can send to the parameter information of indoor set 3 control chip 21 of described air-conditioner outdoor unit 2, therefore have whole supplemental characteristics on the control chip 21 of described air-conditioner outdoor unit 2.Therefore described computer 1 can be gathered the supplemental characteristic of the control chip 21 of described air-conditioner outdoor unit 2 by data wire 4, just can obtain whole supplemental characteristics of described air-conditioning.Described computer 1 shows the concrete parameter information that parses at last again by resolving the supplemental characteristic that it collects.Therefore, first kind of described system of embodiment of the present invention can realize accurately, gather in real time air conditioner operation parameters.
For the concrete course of work of first kind of described air conditioner monitoring system of embodiment of the present invention clearly is described, referring to Fig. 2, this figure is the concrete course of work flow chart of the described system of Fig. 1.
S10, air-conditioner outdoor unit and computer are connected in advance.
A connector is set on the automatically controlled plate of air-conditioner outdoor unit in advance, and this connector is connected on the delivery outlet of MCU (control chip) of air-conditioner outdoor unit.This delivery outlet can be a PC communication delivery outlet.This delivery outlet on the control chip is not common I/O mouth, is to be used for sending into the asynchronous serial communication interface delivery outlet of serial data specially, and this is the function that control chip itself has, the resource that can directly utilize.
Drawing data wire by this connector then is connected on the serial line interface of described computer.
S20, described computer obtain the supplemental characteristic of air-conditioner outdoor unit control chip.
For the supplemental characteristic of air-conditioner outdoor unit control chip, agreement of described computer and air-conditioner outdoor unit MCU control chip two ends regulation, this agreement can standard parameter information and the corresponding relation of the actual high-low level that transmits.
The supplemental characteristic of described air-conditioner outdoor unit control chip comprises the parameter information of described indoor set; Described indoor apparatus of air conditioner sends to described off-premises station control chip with the parameter information of self in real time.
The concrete corresponding relation of high-low level mainly comprises following two aspects:
One. data transmit and the order that receives.
Transmitting terminal off-premises station control chip sends out the data order according to the rules of each parameter successively.For example: the data bit in first frame can represent whether information is mode of operation, and whether the information that the data bit in second frame can be represented is compressor current etc.In described computer one side of receiving terminal, described computer is according to described agreement, first frame of data information that receives at first corresponding to first Text (text box) control in the forms of setting up in advance, can be shown the information of work at present pattern in first Text (text box) control.Second frame of data information that will next receive again is corresponding to second Text (text box) control.Other data correspond to according to serial number in Text (text box) control of appointment by that analogy.Though the supplemental characteristic that described like this computer receives is a lot, chaotic phenomenon can not appear showing yet.
Two. the meaning of high-low level representative.
Eight bit data in each byte is represented actual parameter information by dual mode.
First kind of mode is directly to represent numerical value.The information such as aperture of compressor frequency, electric current, each temperature value and electric expansion valve for example.Among the MCU of air-conditioner outdoor unit numerical value is sent to described computer with binary form at this moment, be converted to the decimal system again at described computer one end.
The second way is the flag bit representation.According to above-mentioned agreement, give corresponding meaning respectively with eight in the byte, perhaps give corresponding meaning with whole byte.The different different information of numerical value representative.For example corresponding to first byte of mode of operation, when being 1, the numerical value of first byte can be set at the representative shutdown, when being 2, the numerical value of first byte can be set at the representative refrigeration, when the numerical value of first byte is 3, can be set at the representative dehumidifying, when the numerical value of first byte is 4, can be set at representative and heats.The control chip of air-conditioner outdoor unit is according to air-conditioning work at present pattern like this, " shutdown ", " refrigeration ", and " dehumidifying ", " heating " these four kinds of possible numerical value send out with binary form.
S30, resolve described supplemental characteristic, show concrete parameter information.
After described computer receiving terminal receives concrete numerical value, find out corresponding pattern according to agreement.In first Text (text box) control, show " shutdown " or " refrigeration " or " dehumidifying " or " heating ".The setting of concrete other supplemental characteristic also can be adopted said method, is not described in detail in this.
In the control program of air-conditioning, the various supplemental characteristics of air-conditioning are sent to computer one end, by the analytic parameter data, just can in described computer, demonstrate the current state parameter of air-conditioning.
Above-mentioned steps S30 specifically can comprise following step:
S31, set up text control in advance.
S32, in described text control, show described supplemental characteristic.
S33, according to described supplemental characteristic drawing waveforms figure.
The numerical value that shows in the step S32 Chinese version control, the value that can be used as independent variable couples together each point then according to carrying out described point in the pre-rendered good coordinate system, promptly forms oscillogram.
For make system monitoring of the present invention to data can be convenient to inquire about in the future, therefore the computer of described system has increased database.
Owing to increased database, therefore, the concrete course of work of this system has increased step S40.
S40, the concrete parameter information that will show store in the database of described computer.
Because the described system of the embodiment of the invention can draw out real-time curve waveform automatically according to described supplemental characteristic, is convenient to the user and observes parameter variation tendency, compares analysis.And owing to increased database, can with described computer monitoring to concrete parameter information store in the database of described computer.Described computer can be with data, and waveform is all preserved, and convenient calling at any time later watched, and analyzes relatively.For debugging with improve new architecture and have and have important effect, be beneficial to the developer more or the monitoring man analysis is used.
The described off-premises station control chip of the embodiment of the invention can be realized the transmission of data by special function register TXS20.The supplemental characteristic that will need exactly particularly to send is put into special function register TXS20 successively by the order that described agreement configures, and register TXS20 can be sent to data on the computer that links to each other with described control chip according to the baud rate of setting.
The detailed process that data transmit can be: described control chip is put into first supplemental characteristic to described register; Described register sends this supplemental characteristic to described computer; Described control chip is put into second supplemental characteristic to described register; Described register sends this second supplemental characteristic to described computer; Until sending whole supplemental characteristics.
After supplemental characteristic sends out from transmitting terminal, described computer receiving terminal will receive these data according to the baud rate that sets in advance, and read.This process can be finished by the Mscomm control in the VB programming tool, and the Mscomm control is by the serial line interface transmission and receives data, the serial communication function is provided.As long as preestablish the baud rate of reception, described computer will carry out the reception of data automatically and read.Certainly also can set by other programming tool according to actual needs, do not repeat them here.
The described method of the embodiment of the invention adopts the asynchronous serial communication mode in advance between the MCU of air-conditioner outdoor unit and computer.The MCU of air-conditioner outdoor unit is unit transmitting-receiving data with the frame, and each frame can comprise start bit, data bit, parity check bit, position of rest.MCU at the transmitting terminal air-conditioner outdoor unit can add start bit before the eight bit data with each byte automatically, after eight bit data, add the check bit sum position of rest, eight bit data, the check bit sum position of rest of start bit, each byte are constituted a frame, send then.Receiving end computer can identify start bit, check bit, position of rest and eight bit data.
More particularly, what the communication modes between described computer of system of the present invention and the described off-premises station control chip adopted is a branch of serial communication, specifically can be the UART communication.The characteristics of this communication modes are needn't the transmission clock signal, and the sending and receiving end transmits and receive data by the unified baud rate of setting.Therefore, the present invention connects that data wire only needs two lines between the control chip of described air-conditioner outdoor unit and the described computer, and one to transmit data promptly high, low level, and another root is an earth connection.
The data that described computer receives, wherein a part of supplemental characteristic are after feeding back to described control chip, to send to described computer by described control chip again.Some supplemental characteristic is directly to send to described computer from described control chip.After described supplemental characteristic feeds back to described control chip, send to described computer by described control chip again.For example many temperature sensors are arranged in air-conditioning inside, some variable resistors normally, its resistance is also different simultaneously when temperature.By temperature signal collection circuit voltage signal is fed back to described control chip, described control chip can convert above-mentioned voltage signal to corresponding temperature value.Same compressor of air conditioner current value is to feed back to described control chip by current detection circuit with voltage signal, and described control chip converts thereof into current value again.Alternative supplemental characteristic send mode directly sends to described computer from described control chip.For example compressor of air conditioner calculated rate, electronic expansion valve opening and obtain from control program when information such as prior faults can directly output to described computer from described control chip.
After described supplemental characteristic arrives described computer, can at first be stored in the reception buffering area of described computer, and then resolve described supplemental characteristic, in the text control of forms, show.The implementation method that shows can be, earlier the data assignment that reads given the array Rec1 (1to 100) of definition, and Rec2 (1to100) is again according to the text attribute of the value defined text control in the array.
In the supplemental characteristic transmission course, data are to transmit with binary system, reach described computer receiving terminal after, described computer can carry out binary system and metric conversion automatically according to above-mentioned agreement, so the data that show are the decimal system.
More than air conditioner monitoring system provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. an air conditioner monitoring system is characterized in that, described system comprises computer, air-conditioner outdoor unit, indoor apparatus of air conditioner;
Described indoor apparatus of air conditioner sends to the air-conditioner outdoor unit control chip with the parameter information of self; The supplemental characteristic of described air-conditioner outdoor unit control chip comprises the parameter information of described indoor set;
Described air-conditioner outdoor unit and described computer link together by data wire;
Described computer obtains the supplemental characteristic of described air-conditioner outdoor unit control chip by described data wire;
Described computer is used to resolve described supplemental characteristic, shows concrete parameter information.
2. air conditioner monitoring system according to claim 1 is characterized in that, described air-conditioner outdoor unit control chip is connected by serial line interface with described computer.
3. air conditioner monitoring system according to claim 2 is characterized in that, the PC communication port of described air-conditioner outdoor unit control chip connects the serial line interface of described computer by data wire.
4. air conditioner monitoring system according to claim 3 is characterized in that described computer further comprises the database of storing described concrete parameter information.
5. air conditioner monitoring system according to claim 4 is characterized in that described computer is set up text control in advance; Described computer is by showing the supplemental characteristic of described air-conditioner outdoor unit control chip in the described text control; Described computer is according to described supplemental characteristic drawing waveforms figure.
6. air conditioner monitoring system according to claim 5 is characterized in that, the supplemental characteristic that described computer obtains is to be the data of unit with the frame, represents by high-low level.
7. air conditioner monitoring system according to claim 6 is characterized in that, described high-low level is represented concrete numerical value or represented predefined specifying information.
8. air conditioner monitoring system according to claim 6 is characterized in that, each frame of described supplemental characteristic comprises start bit, data bit, parity check bit, position of rest.
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| CN2007101108367A CN101324363B (en) | 2007-06-11 | 2007-06-11 | Air conditioner monitoring system |
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| CN2007101108367A CN101324363B (en) | 2007-06-11 | 2007-06-11 | Air conditioner monitoring system |
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| CN101324363B true CN101324363B (en) | 2010-10-27 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062865B (en) * | 2012-12-28 | 2015-07-01 | 青岛海尔空调电子有限公司 | Device and method for detecting communication quality of indoor unit and outdoor unit of air-conditioning unit |
| US10670293B2 (en) | 2014-06-12 | 2020-06-02 | Emerson Electric Co. | HVAC system mode detection based on control line current |
| CN104633874B (en) * | 2014-12-30 | 2017-05-10 | 广东美的制冷设备有限公司 | air conditioner, indoor unit and outdoor unit |
| CN105300720A (en) * | 2015-11-16 | 2016-02-03 | 合肥美的电冰箱有限公司 | Detection method and system of refrigerator and refrigerator |
| CN107878143A (en) * | 2017-06-07 | 2018-04-06 | 深圳市北斗车载电子有限公司 | Touch control system and method for on-board air conditioner |
| CN108361188B (en) * | 2018-02-27 | 2019-03-19 | 奥克斯空调股份有限公司 | Compressor test method and system |
| CN108593219A (en) * | 2018-05-16 | 2018-09-28 | 珠海格力电器股份有限公司 | The sealing state detection method of air-conditioning duct, apparatus and system |
| CN108954686B (en) * | 2018-07-27 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Air conditioner control device and method and air conditioner |
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| JP2004232968A (en) * | 2003-01-30 | 2004-08-19 | Mitsubishi Electric Corp | Air conditioning operation monitoring system, abnormality detection method, and abnormality detection device |
| US20050038567A1 (en) * | 2000-03-29 | 2005-02-17 | Tsutomu Maeda | Remote monitoring system for air conditioners |
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| US20050038567A1 (en) * | 2000-03-29 | 2005-02-17 | Tsutomu Maeda | Remote monitoring system for air conditioners |
| JP2004232968A (en) * | 2003-01-30 | 2004-08-19 | Mitsubishi Electric Corp | Air conditioning operation monitoring system, abnormality detection method, and abnormality detection device |
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