CN101625544A - System and method for power failure recovery of air conditioner - Google Patents
System and method for power failure recovery of air conditioner Download PDFInfo
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- CN101625544A CN101625544A CN200810068339A CN200810068339A CN101625544A CN 101625544 A CN101625544 A CN 101625544A CN 200810068339 A CN200810068339 A CN 200810068339A CN 200810068339 A CN200810068339 A CN 200810068339A CN 101625544 A CN101625544 A CN 101625544A
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Abstract
The invention provides a system and a method for power failure recovery of an air conditioner. The system for the power failure recovery of the air conditioner comprises a microprocessor for controlling the running of the air conditioner, a power supply circuit for supplying power for the system, a memory circuit for storing running data of the air conditioner and a power failure time identification circuit for judging power failure duration. The method for the power failure recovery of the air conditioner comprises the following steps: after power failure recovery incoming call, reading the voltage of the power failure identification circuit, and calculating power failure time through the microprocessor; and according to the power failure time, adopting a corresponding startup mode to start the air conditioner. The system and the method for the power failure recovery of the air conditioner can judge the power failure time after the power failure recovery incoming call of the air conditioner, can start the air conditioner after the power failure of the air conditioner by adopting different startup modes according to the power failure time and the primary set mode of the air conditioner without manually repressing a remote controller, and simultaneously ensure the safety of electric appliances.
Description
Technical field
The present invention relates to the air conditioner field, relate in particular to automatically actuated system and control method when sending a telegram here once more after a kind of air conditioner cuts off the power supply.
Background technology
Air conditioner is as a kind of household electrical appliance commonly used, and regular meeting is because reason power failure such as electrical network overload, thunder and lightning cause air conditioner to shut down.Yet, at special occasions such as historical relic's protection, operating room, food fresh-keepings, but can not in time open air-conditioning automatically if restore electricity again after the outage, not only can result in hand cramps, even cause damage to work to life.In the self-starting technology behind existing air-conditioning power interruption recovering, by adding EEROM (electrically-erasable device) chip in the control circuit, have in the electric operational process at air-conditioning, write data such as present mode of operation, running status, when after air-conditioning runs into outage, restoring electricity again, master chip reads in the data before the power down, the control air-conditioning is by the preceding state operation of outage, this self-starting technology self-starting start has two kinds of methods, after being incoming call, start by the state before the air-conditioning outage, the 2nd, sending a telegram here started by the state before the outage after three minutes, and there is following defective in these methods:
The first, how long can not differentiate air-conditioning the electricity went off.If incoming call (for example restoring electricity within a minute) is recovered in air-conditioning outage back at once, under these circumstances, if start air-conditioning at once, air conditioner is closed the back less than and is opened after 3 minutes again, can not reach balance as yet because of air-conditioning duct pressure, cause compressor to burn easily; If reached a period of time, under the halfhour situation of for example cutting off the power supply,, can not satisfy above-mentioned startup demand as early as possible in particular cases again if the incoming call back does not start operation as early as possible when air-conditioning has cut off the power supply.
The second, if air-conditioning cuts off the power supply in operational process, and the user has left the environment (for example often travel on business trips etc.) of air-conditioning, and the user need transfer to the plug of air conditioner, otherwise can cause the air-conditioning outage self-starting operation behind the incoming call again, causes the huge waste of electric power.
Summary of the invention
The object of the present invention is to provide a kind of power failure recovery of air conditioner system and method, have this technical matters of irrational self-starting after being intended to solve the air conditioner power interruption recovering that exists in the prior art.
Power failure recovery of air conditioner turnkey provided by the invention is drawn together:
The microprocessor of control air conditioner operation;
The power circuit of power supply is provided for system;
The memory circuit of storage operation of air conditioner data;
Judge the power-off time identification circuit of the time that outage is continued.
Described microprocessor identification power-off time size, and from memory circuit, read and write the operation of air conditioner data.
Described memory circuit adopts EEPROM.
Described power-off time identification circuit comprises the RC charge-discharge circuit.
Air conditioner power interruption recovering method provided by the invention may further comprise the steps:
Step a reads the voltage of outage identification circuit and converses power-off time behind the power interruption recovering incoming call;
Step b takes start mode accordingly to open air-conditioning according to power-off time.
Described step b further comprises following step:
Whether step b1 judges power-off time greater than a specific very first time, if power-off time greater than the specific very first time, is not then opened air-conditioning;
Step b2, if the judged result among the above-mentioned steps b1 is that power-off time is less than the specific very first time, whether then judge power-off time greater than second a specific time, if power-off time, waits for then that power-off time arrived for second time less than the second specific time;
Step b3, if the judged result of above-mentioned steps b2 be power-off time greater than the second specific time, perhaps arrived for second time through waiting for, then open air-conditioning.
Above-mentioned unlatching air-conditioning is meant according to state parameter before the air-conditioning outage that is stored in the memory circuit opens air-conditioning.
Power failure recovery of air conditioner system provided by the invention and method can be judged power-off time in air-conditioning power interruption recovering incoming call back, and according to original setting pattern of power-off time and air-conditioning, adopt different start modes, can be after the air-conditioning outage, need not the people again by the telepilot start, can guarantee security appliance again simultaneously.
Description of drawings
Fig. 1 realizes hardware configuration schematic block diagram of the present invention;
Fig. 2 realizes power-off time identification electrical schematic diagram of the present invention;
Fig. 3 realizes memory circuit schematic diagram of the present invention;
Fig. 4 is that the data of air conditioner of the present invention write process flow diagram;
Fig. 5 is the process flow diagram of air conditioner power interruption recovering method of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make invention is clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Shown in Fig. 1, the preferred embodiment of power failure recovery of air conditioner system of the present invention comprises power circuit 11, power-off time identification circuit 12, memory circuit 13, microprocessor 14, and wherein microprocessor 14 will be explained in greater detail below as the concrete function of air conditioner master chip.
Power circuit 11 provides power supply for total system, each circuit that comprises power-off time identification circuit 12, memory circuit 13, microprocessor 14 all obtains working power from power circuit 11, and power circuit 11 can be the analog power of Switching Power Supply or process transformer transformation.
A kind of particular circuit configurations of power-off time identification circuit 12 when power-off time identification circuit 12 is sent a telegram here after outage once more by the RC charge-discharge circuit, can be discerned the time that outage continues of judging as shown in Figure 2.The principle of work of the power-off time identification circuit 12 that is disclosed among Fig. 2 is as follows: when power vd D powers on, little (resistance value of resistance R 10 is 30K ohm because the resistance value of resistance R 10 is than resistance R 12, the resistance value of resistance R 12 is 2.5M ohm), electric current charges to capacitor C D1 through resistance R 10, diode D5, capacitor C D1 is a jumbo farad capacitor (capacitance is 10F), under the situation that electricity is arranged, capacitor C D1 is the state that the place is full of electricity, and capacitor C C1 is jamproof filter capacitor (capacitance is 0.1UF).Behind the power cut-off of air conditioner, since diode D5 oppositely by effect, capacitor C D1, resistance R 12 form the RC discharge loop that flows to power vd D, discharge time t=RC, wherein R is the resistance value of R12, C is the capacitance of capacitor C D1, and therefore, discharge time is by the value decision of resistance R 12 with capacitor C D1.The principle of work of foregoing circuit is summarized as follows: (circuit is continuous discharge between turnoff time when sending a telegram here once more after the air conditioner outage, because the capacitance of capacitor C D1 is bigger, discharge can last very long), microprocessor 14 starts inner A/D converse routine at first rapidly, the analog quantity of the M point voltage between resistance R 10 and the capacitor C D1 is converted into the discernible digital quantity AD of microprocessor value, microprocessor utilizes this value, look-up method by software, obtain corresponding discharge time, thereby know the power-off time of air conditioner, the power-off time of the low more correspondence of M point voltage is long more, and the power-off time of the high more correspondence of M point voltage is short more.Circuit get electric and stable after, charging process also begins immediately.Certainly, the power-off time identification circuit 12 that discloses among Fig. 2 only is one embodiment of the present invention, and those skilled in the art also can discern the time that outage continues by other feasible modes.
Memory circuit 13 in the present embodiment adopts the service data that nonvolatile memory is stored air-conditioning, the EEROM memory chip IC2 shown in Fig. 3 for example, the characteristics of memory chip IC2 are can write data to it under the situation that electricity is arranged, its data can not lost after power down, resistance R 13, R14 is a pull-up resistor, under the situation of the normal operation of air conditioner, in case the user of air conditioner is provided with when changing, microprocessor 14 writes the data that need memory by SDA data communication mouth and the SCL clock mouth of memory chip IC2 to it, these data comprise operational mode (refrigeration, heat, dehumidifying, air-supply etc.), air quantity is provided with size (high wind, apoplexy, low wind, automatic wind etc.,), design temperature, wind pendulum mode is (from movable pendulum wind, fixing) etc., the read-write of memory chip IC2 is that in accordance with regulations I2C form carries out, and the chip storage address is 8.Certainly these parameters only are wherein a kind of embodiments of the present invention, according to different situations, can also adopt other forms of nonvolatile memory (for example FLASH storer etc.) and other parameter to realize the present invention.
Microprocessor 14 is as the master chip in the embodiment of the invention, and it mainly acts on and is: 1, read the charging voltage size of power-off time identification circuit 12, identify the power-off time size; 2, to memory circuit 13 read-write operation of air conditioner data; 3, power-off time is judged, taked start mode accordingly to open air-conditioning according to power-off time; 4, under the situation of start, according to state parameter and air conditioner refrigerating before the outage, heat, electric components such as the compressor of different operational modes control such as dehumidifying air-conditionings, four-way valve, outer blower fan open.
It is emphasized that other air supply rate that the present invention may relate to, for example compressor, four-way valve, etc. all belong to very known parts in this area, do not give unnecessary details at this.
Following emphasis is set forth in the process that above-mentioned power failure recovery of air conditioner system is realized air conditioner power interruption recovering method of the present invention down.
As shown in Figure 4, Fig. 4 is the data write-in program under the normal operation conditions of air conditioner.Have at air conditioner under the situation of electricity, microprocessor 14 is write the data that access customer is set in memory circuit 13, so that can preserve data when air conditioner cuts off the power supply.After entering the data write-in program, in step 31, after air conditioner receives the signal of user from telepilot or panel, enter step 32 and begin memory circuit 13 is write operational mode, wind pendulum mode data, wherein operational mode comprises: freeze, heat, dehumidify, air-supply etc.; Wind pendulum mode comprises: from movable pendulum wind, fixing etc.; Then, enter design temperature, setting air quantity size that step 33 is write access customer, design temperature mainly contains Celsius temperature or Fahrenheit temperature, the air quantity size comprises: high wind, apoplexy, low wind, automatic wind, and certainly, step 32,33 also can merge, that is, write the access customer setting data to memory circuit 13.Enter the detection that step 34 pair running status changes at last, if operational mode, wind pendulum mode, design temperature, air quantity size any one change and just forward step 32 to, data are write again, keep upgrading.
As shown in Figure 5, Fig. 5 has disclosed the process flow diagram of air conditioner power interruption recovering method of the present invention.After outage incoming call again, system enters into the self-starting control program, and at first execution in step 41, carry out program and just change, and initialization mainly is the zero clearing to the master chip internal memory, the initial setting of I/0 mouth, timer; Enter step 42 after finishing initialization, microprocessor 14 carries out reading M point voltage among the power-off time identification circuit 12 rapidly, by the A/D conversion of microprocessor 14 and the time table lookup operation of program inside, obtain the power-off continuous time, enter step 43 then and judge whether power-off continuous 8 hours, if power-off time was greater than 8 hours, then execution in step 48, enter holding state after the internal data of removing memory circuit 13, can prevent air-conditioning Auto Power On in unmanned environment like this; If power-off time less than 8 hours, then execution in step 44, read operational mode, wind pendulum mode data to memory circuit 13, follow operating procedure 45 again, continue to read user's design temperature, setting air quantity size data, certainly. Step 44,45 can merge, and, reads preceding 13 stored parameters of memory circuit of outage that is.After reading all data that need; enter step 46; judge that whether power-off time is less than 3 minutes; if power-off time is less than just entering step 49 in 3 minutes; stand-by period satisfied 3 minutes; burn to avoid compressor to open to cause in 3 minutes because of the shutdown less than; certainly; also can omit step 49 herein; repeated execution of steps 46 greater than three minutes, enters step 47 up to power-off time then; at once control signal is flowed to and comprise compressor; four-way valve; outer blower fans etc. are at interior parts; what for example read is that data are to heat; high wind; from movable pendulum wind; design temperature 26 is so to four-way valve; outer blower fan and compressor are carried control signal, drive the PG motor and move high wind; drive stepping motor makes the pendulum wind mechanism swing output display unit display setting temperature 26 or the like by automated manner.
Certainly, the time parameter in the said process also can be the other times parameter that the user sets, and for example, the very first time in the step 43 also can be 4 hours; Second time in the step 46 also can be 5 minutes.
In sum, air conditioner power interruption recovering method of the present invention comprises following key step:
Step a reads the voltage of outage identification circuit 12 and converses power-off time behind the power interruption recovering incoming call; In the above-described embodiments, be to converse power-off time by reading the M point voltage.
Step b takes different start modes according to power-off time.
Wherein, described step b can comprise following little step:
Step b1 judges that whether power-off time is greater than a specific very first time (for example 8 hours), if power-off time greater than the specific very first time, is not then opened air-conditioning;
Step b2, if the judged result among the above-mentioned steps b1 is that power-off time is less than the specific very first time, judge that then whether power-off time is greater than second a specific time (for example three minutes), if power-off time, waits for then that power-off time arrived for second time less than the second specific time;
Step b3, if the judged result of above-mentioned steps b2 be power-off time greater than the second specific time, perhaps arrived for second time through waiting for, then open air-conditioning.
Above-mentioned unlatching air-conditioning is meant according to state parameter before the air-conditioning outage that is stored in the memory circuit opens air-conditioning, makes air-conditioning return to the running status before cutting off the power supply.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (7)
1, a kind of power failure recovery of air conditioner system, it comprises:
The microprocessor of control air conditioner operation;
The power circuit of power supply is provided for system;
The memory circuit of storage operation of air conditioner data;
It is characterized in that described power failure recovery of air conditioner system further comprises:
Judge the power-off time identification circuit of the time that outage is continued.
2, power failure recovery of air conditioner system according to claim 1 is characterized in that: described microprocessor identification power-off time size, and from memory circuit, read and write the operation of air conditioner data.
3, power failure recovery of air conditioner system according to claim 1, it is characterized in that: described memory circuit adopts EEPROM.
4, the control method of self-starting behind the power interruption recovering of air conditioner according to claim 1 is characterized in that, described power-off time identification circuit comprises the RC charge-discharge circuit.
5, according to the air conditioner power interruption recovering method of the system of power failure recovery of air conditioner described in the claim 1, it is characterized in that may further comprise the steps:
Step a reads the voltage of outage identification circuit and converses power-off time by microprocessor behind the power interruption recovering incoming call;
Step b takes start mode accordingly to open air-conditioning according to power-off time.
6, according to the air conditioner power interruption recovering method of the system of power failure recovery of air conditioner described in the claim 5, it is characterized in that described step b further comprises following step:
Whether step b1 judges power-off time greater than a specific very first time, if power-off time greater than the specific very first time, is not then opened air-conditioning;
Step b2, if the judged result among the above-mentioned steps b1 is that power-off time is less than the specific very first time, whether then judge power-off time greater than second a specific time, if power-off time, waits for then that power-off time arrived for second time less than the second specific time;
Step b3, if the judged result of above-mentioned steps b2 be power-off time greater than the second specific time, perhaps arrived for second time through waiting for, then open air-conditioning.
According to the air conditioner power interruption recovering method of the system of power failure recovery of air conditioner described in claim 5 or 6, it is characterized in that 7, described unlatching air-conditioning is meant according to state parameter before the air-conditioning outage that is stored in the memory circuit opens air-conditioning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810068339.XA CN101625544B (en) | 2008-07-07 | 2008-07-07 | System and method for power failure recovery of air conditioner |
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| CN200810068339.XA CN101625544B (en) | 2008-07-07 | 2008-07-07 | System and method for power failure recovery of air conditioner |
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| CN101625544A true CN101625544A (en) | 2010-01-13 |
| CN101625544B CN101625544B (en) | 2014-08-20 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878638A (en) * | 2012-09-14 | 2013-01-16 | 广东志高空调有限公司 | Air conditioner capable of adjusting control parameters intelligently and read-write method thereof |
| CN103344088A (en) * | 2013-07-12 | 2013-10-09 | 合肥华凌股份有限公司 | Refrigerating device |
| CN103423842A (en) * | 2012-05-24 | 2013-12-04 | 珠海格力电器股份有限公司 | Air conditioner and control method for off-peak starting of air conditioner |
| CN104005942A (en) * | 2014-06-13 | 2014-08-27 | 广东美的暖通设备有限公司 | Starting method of compressors of heat pump system and hot water unit |
| CN104564631A (en) * | 2013-10-14 | 2015-04-29 | 广东美的制冷设备有限公司 | Control method of compressor, compressor and electrical equipment |
| CN105371414A (en) * | 2014-08-06 | 2016-03-02 | 广东美的制冷设备有限公司 | An air conditioner control method and an air conditioner controller |
| CN107631418A (en) * | 2017-08-22 | 2018-01-26 | 珠海格力电器股份有限公司 | Windshield switching method and device and air conditioning equipment |
| WO2018113323A1 (en) * | 2016-12-22 | 2018-06-28 | 重庆美的通用制冷设备有限公司 | Method and system for automatically and rapidly starting up unit after de-energization, and air conditioner |
| CN109478047A (en) * | 2016-08-05 | 2019-03-15 | 韩性峰 | Intelligent timer switch |
| CN109682163A (en) * | 2018-12-29 | 2019-04-26 | 苏州路之遥科技股份有限公司 | A kind of Internet of Things alarm method for refrigerator power-off |
| CN110147045A (en) * | 2019-05-07 | 2019-08-20 | 青岛海尔空调器有限总公司 | A kind of control method of power supply unit, control device and power supply unit |
| CN110486887A (en) * | 2019-08-23 | 2019-11-22 | 珠海格力电器股份有限公司 | A kind of air-conditioner set power loss recovery method, apparatus and air-conditioner set |
| CN113091229A (en) * | 2021-03-26 | 2021-07-09 | 青岛海尔空调器有限总公司 | Air conditioner power-off memory method and system |
| CN117991653A (en) * | 2024-04-07 | 2024-05-07 | 珠海格力电器股份有限公司 | Control method and device of equipment, computer equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103423842A (en) * | 2012-05-24 | 2013-12-04 | 珠海格力电器股份有限公司 | Air conditioner and control method for off-peak starting of air conditioner |
| CN103423842B (en) * | 2012-05-24 | 2016-07-06 | 珠海格力电器股份有限公司 | Air conditioner and control method for off-peak starting of air conditioner |
| CN102878638B (en) * | 2012-09-14 | 2014-12-03 | 广东志高空调有限公司 | Air conditioner capable of adjusting control parameters intelligently and read-write method thereof |
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| CN104564631A (en) * | 2013-10-14 | 2015-04-29 | 广东美的制冷设备有限公司 | Control method of compressor, compressor and electrical equipment |
| CN104005942A (en) * | 2014-06-13 | 2014-08-27 | 广东美的暖通设备有限公司 | Starting method of compressors of heat pump system and hot water unit |
| CN104005942B (en) * | 2014-06-13 | 2016-04-27 | 广东美的暖通设备有限公司 | The starting method of the compressor of heat pump and Hot water units |
| CN105371414B (en) * | 2014-08-06 | 2017-11-14 | 广东美的制冷设备有限公司 | The control method and air-conditioner controller of air conditioner |
| CN105371414A (en) * | 2014-08-06 | 2016-03-02 | 广东美的制冷设备有限公司 | An air conditioner control method and an air conditioner controller |
| CN109478047A (en) * | 2016-08-05 | 2019-03-15 | 韩性峰 | Intelligent timer switch |
| CN109478047B (en) * | 2016-08-05 | 2021-10-29 | 深圳市瀚枫科技有限公司 | Intelligent timer switch |
| WO2018113323A1 (en) * | 2016-12-22 | 2018-06-28 | 重庆美的通用制冷设备有限公司 | Method and system for automatically and rapidly starting up unit after de-energization, and air conditioner |
| CN107631418A (en) * | 2017-08-22 | 2018-01-26 | 珠海格力电器股份有限公司 | Windshield switching method and device and air conditioning equipment |
| CN109682163A (en) * | 2018-12-29 | 2019-04-26 | 苏州路之遥科技股份有限公司 | A kind of Internet of Things alarm method for refrigerator power-off |
| CN110147045A (en) * | 2019-05-07 | 2019-08-20 | 青岛海尔空调器有限总公司 | A kind of control method of power supply unit, control device and power supply unit |
| CN110486887A (en) * | 2019-08-23 | 2019-11-22 | 珠海格力电器股份有限公司 | A kind of air-conditioner set power loss recovery method, apparatus and air-conditioner set |
| CN113091229A (en) * | 2021-03-26 | 2021-07-09 | 青岛海尔空调器有限总公司 | Air conditioner power-off memory method and system |
| CN117991653A (en) * | 2024-04-07 | 2024-05-07 | 珠海格力电器股份有限公司 | Control method and device of equipment, computer equipment and storage medium |
| CN117991653B (en) * | 2024-04-07 | 2024-06-07 | 珠海格力电器股份有限公司 | Control method and device of equipment, computer equipment and storage medium |
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