CN205427831U - Central air conditioning controller falls electric data backup device - Google Patents
Central air conditioning controller falls electric data backup device Download PDFInfo
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- CN205427831U CN205427831U CN201520987593.5U CN201520987593U CN205427831U CN 205427831 U CN205427831 U CN 205427831U CN 201520987593 U CN201520987593 U CN 201520987593U CN 205427831 U CN205427831 U CN 205427831U
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Abstract
The utility model discloses a central air conditioning controller falls electric data backup device, include: low -power consumption main control unit, memory, real -time clock, lithium cell. Main control unit is in through the low -power consumption when central air conditioning falls the electricity, can follow the operating parameter and the user setting parameters of the online unit of up -to -date all that acquire preserves among the master control MCU of central air conditioning controller in the memory, and follow read current time information conduct among the real -time clock data storage's time information is preserved extremely in the memory, and then the spare demand when the central air conditioning unit all fell the electricity present be can satisfy, data stabilization, accuracy are preserved.
Description
Technical field
This utility model relates to technical field of automation, particularly relates to a kind of central air-conditioning controller power failure data back-up device.
Background technology
Central air-conditioning power-failure memory function, it is desirable to recover all parameters that arrange before present clock and power down after incoming call, and recover the state of unit before power down.And unit online for multiple stage is when running before power down, can after incoming call startup optimization in batches.
At present, central air-conditioning power-failure memory device on market, main by microcontroller and EEPROM (ElectricallyErasableProgrammableRead-OnlyMemory, band EEPROM) composition, microcontroller gathers accessible extraneous remote signal and push button signalling generates remote information coding, is stored in EEPROM by IC bus.
After running into air-conditioner controller power down, and when again powering on, the storage Signal coding before power down is sent in the reception signal pins of air-conditioner controller by microcontroller, thus realizes the power-failure memory function of air-conditioner.
And along with the increase of Central air-conditioning unit number, make to require that the operational factor of preservation and user setup supplemental characteristic amount are increasing, and the backup functionality of existing memory is low, limited storage space, it is merely able to single air-conditioning is backed up, and backup requirements when cannot meet the air conditioning unit whole power down of Current central.
Utility model content
This utility model provides a kind of central air-conditioning controller power failure data back-up device, to solve the technical problem of data backup demand when existing memory cannot meet Current central air conditioning unit whole power down.
For solving above-mentioned technical problem, this utility model provides a kind of central air-conditioning controller power failure data back-up device, including: low-power consumption master controller, memorizer, real-time clock, lithium battery；Described low-power consumption master controller connects described memorizer, described real-time clock, described lithium battery respectively；
Described memory stores data；
Described real-time clock provides the temporal information that data preserve；
Described low-power consumption master controller is when described central air-conditioning power down, operational factor and the user setup parameter of all online unit got up-to-date from the main control MCU of described central air-conditioning controller are saved in described memorizer, and the temporal information that reading current time information preserves as described data from described real-time clock preserves to described memorizer；
Described lithium battery provides power supply for described power failure data back-up device.
Preferably, described memorizer is particularly as follows: safe digital card.
Preferably, the range of capacity of described safe digital card is: 2GB to 32GB.
Preferably, described low-power consumption master controller can obtain operational factor and the user setup parameter of current Online unit when every the time of setting from the main control MCU of described central air-conditioning controller.
Preferably, described low-power consumption master controller continues to monitor master control supply voltage, when monitoring described master control supply voltage less than the threshold value set, operational factor and the user setup parameter of the up-to-date all online unit got are saved in described memorizer, and read the temporal information that current time information preserves as described data and preserve to described memorizer.
Preferably, described low-power consumption master controller enters Low-power-consumptiodormancy dormancy pattern after preservation is complete.
Preferably, after having unit to restore electricity, corresponding operational factor and user setup parameter are sent to the unit restored electricity by described low-power consumption master controller.
By one or more technical scheme of the present utility model, this utility model has the advantages that or advantage:
The utility model discloses a kind of central air-conditioning controller power failure data back-up device, including: low-power consumption master controller, memorizer, real-time clock, lithium battery.By low-power consumption master controller when described central air-conditioning power down, operational factor and the user setup parameter of the up-to-date all online unit got can be saved in described memorizer from the main control MCU of described central air-conditioning controller, and from described real-time clock, read current time information preserve to described memorizer as the temporal information that described data preserve, and then backup requirements when disclosure satisfy that the air conditioning unit whole power down of Current central, preserve data stabilization, accurately.
Accompanying drawing explanation
Fig. 1 is the overall structure block diagram of this utility model central air-conditioning controller power failure data back-up device；
Fig. 2 is this utility model central air-conditioning controller power failure data back-up device standby lithium pond power interface circuit；
Fig. 3 is this utility model central air-conditioning controller power failure data back-up device STM8L and real-time timepiece chip PCF8563TS interface circuit；
Fig. 4 is this utility model central air-conditioning controller power failure data back-up device STM8L and SD card interface circuit.
Description of reference numerals: master control power supply 101, main control MCU 102, central air-conditioning controller 10, low-power consumption master controller 11, memorizer 12, real-time clock 13, lithium battery 14.
Detailed description of the invention
In order to make this utility model the technical staff in the technical field be more clearly understood that this utility model, below in conjunction with the accompanying drawings, by specific embodiment, technical solutions of the utility model are described in detail.
See Fig. 1, be the composition schematic diagram of a kind of central air-conditioning controller 10 power failure data back-up device that this utility model embodiment provides.
Specifically, the data backup device that this utility model provides includes low-power consumption master controller 11, memorizer 12, real-time clock 13, lithium battery 14.
Described low-power consumption master controller 11 connects described memorizer 12, described real-time clock 13, described lithium battery 14 respectively.It addition, master control power supply 101 and main control MCU 102 (MicroControllerUnit, micro-control unit (also known as one chip microcomputer)) that low-power consumption master controller 11 can also and monitor in central air-conditioning controller 10 realize data interaction.
Below each electronic device is introduced respectively.
Memorizer 12 can use safe digital card, it may be assumed that SD card, is a kind of memory device of new generation based on quasiconductor fast-flash memory device.
The range of capacity of memorizer 12 may is that 2GB to 32GB, and memorizer 12 in this range can serve as memorizer 12 of the present utility model and uses.
It addition, memorizer 12 can also use Micro (mini) SD card, it is that a kind of superfine little flash memory 12 blocks.MicroSD card volume is little, capacity is big, it is simple to the Miniaturization Design of device.The capacity maximum of MicroSD card can reach 128G.
Use the loss of data, covering that jumbo MicroSD card is possible to prevent early stage to back up as memorizer 12, the MicroSD card that eeprom memory 12 this utility model of the special power-failure memory modular circuit of air-conditioning in the market that compares uses, volume is little, capacity is big, can conveniently complete the derivation of Backup Data, the follow-up computer that imports data to realizes location fault time and the analysis of central air-conditioning operation conditions.
Real-time clock 13 can use electronic clock or intelligent clock, the time of real-time clock 13 to need accurate recording actual time.Owing to power failure data back-up device is accurate for data backup and the time of power down, it is desirable to can work long hours to provide lithium battery 14 for oneself, therefore the power consumption of device is had higher requirement.Therefore, the chip of real-time clock 13 is all ensured of small size, low-power chip, possesses low power mode of operation, and the quiescent current representative value of real-time clock 13 is only 0.25 μ A (VDD=3.0V, 25 DEG C).
Being main power consumption source owing to this paper low power dissipation design refers mainly to the stand-by power consumption after power down, i.e. master controller 11 and real-time clock 13, during they dormancy, electric current is low, then can extend the working life of lithium battery.Such as this utility model can use 210mAh lithium battery, then stand-by time=210/ (standby quiescent current value) hour.
Described lithium battery 14 provides power supply for described power failure data back-up device.
Low-power consumption master controller 11 is the control core of whole device, has been used for the data interaction of main control MCU 102 with central air-conditioning controller 10, and the monitoring of master control power supply 101 voltage, and the control realizing data recording process etc. function.Low-power consumption master controller 11 needs to meet the data backup design requirement of the small size of central air-conditioning data backup application, Large Copacity, high stability.
Low-power consumption master controller 11 is when described central air-conditioning power down, operational factor and the user setup parameter of all online unit got up-to-date from the main control MCU 102 of described central air-conditioning controller 10 are saved in described memorizer 12, and the temporal information that reading current time information preserves as described data from described real-time clock 13 preserves to described memorizer 12.
Specifically, described low-power consumption master controller 11 can obtain operational factor and the user setup parameter of current Online unit when every the time of setting from the main control MCU 102 of described central air-conditioning controller 10.
Further, described low-power consumption master controller 11 continues to monitor master control power supply 101 voltage, when monitoring described master control power supply 101 voltage less than the threshold value set, operational factor and the user setup parameter of the up-to-date all online unit got are saved in described memorizer 12, and read the temporal information that current time information preserves as described data and preserve to described memorizer 12.
Further, described low-power consumption master controller 11 enters Low-power-consumptiodormancy dormancy pattern after preservation is complete.
Further, after having unit to restore electricity, corresponding operational factor and user setup parameter are sent to the unit restored electricity by described low-power consumption master controller 11.After incoming call, for the main controller of central air-conditioning, the main control MCU 102 of central air-conditioning controller 10 wakes up low-power consumption master controller 11 up, and obtain all parameters before present clock and power down from it, the state of unit before recovery power down, when before online multiple stage unit power down in operation, with the startup optimization in batches of operational factor before power down after incoming call.
Owing to power failure data back-up device requires longevity of service, therefore the power consumption to device has higher requirement.Therefore this utility model system uses low-power consumption microcontroller, in order to reduce power consumption, saves electricity, lengthens working hours.
The low-power consumption mode current drain as little as 400nA (running voltage 1.8V to 3.0V) of the low-power consumption master controller 11 that this utility model uses.
Specifically, the main model of low-power consumption master controller 11 of the present utility model can be STM8L, MSP430 etc..
Such as, low-power consumption master controller 11 model of the present utility model is STM8L, and volume is only 3*3mm, uses internal crystal oscillator, only several resistance capacitances of peripheral components, power consumption as little as 5.6mW under 8MHz operating frequency, and low-power consumption Halt pattern about needs to consume 350nA electric energy.
The working method of each electronic device be described below:
Standby lithium pond 14 of the present utility model power interface is as shown in Figure 2.Matching requirements remains that continuously power supply when not having external power supply, to ensure that data complete the accurate of backup and retention time.Therefore, this partial circuit has the power-down protection in standby lithium pond 14, and when main power supply VCC_3.3V accident power-off, i.e. when VCC_3.3V is 0V, D1 ends, and continue to power to device by D2 in standby lithium pond 14, it is ensured that it is properly functioning.VCC_MCU is installation's power source.
The interface of STM8L Yu MicroSD card of the present utility model is as shown in Figure 4.Wherein the interface of STM8L Yu MicroSD card uses spi bus, and PB4, PB6, PB5 of STM8L and PB7 pin CD, CMD, CLK and DAT0 with SD card socket respectively is connected.
STM8L of the present utility model reads the real-time time/calendar of real-time clock 13/ calendar chip PCF8563TS with the chip PCF8563TS interface circuit of real-time clock 13 as it is shown on figure 3, PCF8563TS passes through I2C bus.PCF8563TS is the extremely low power dissipation multifunction timepiece/calendar chip of a technical grade, is widely used in the products such as low-power consumption instrument, battery supply.5th pin of PCF8563TS and the 6th pin respectively by 4.7k Ω resistance pull up, and and STM8L microcontroller PC0 and PC1 pin connect, the 3rd pin is connected with PC4, and the 8th pin is connected with installation's power source VCC_MCU.
By one or more technical scheme of the present utility model, this utility model has the advantages that or advantage:
The utility model discloses a kind of central air-conditioning controller power failure data back-up device, including: low-power consumption master controller, memorizer, real-time clock, lithium battery.By low-power consumption master controller when described central air-conditioning power down, operational factor and the user setup parameter of the up-to-date all online unit got can be saved in described memorizer from the main control MCU of described central air-conditioning controller, and from described real-time clock, read current time information preserve to described memorizer as the temporal information that described data preserve, and then backup requirements when disclosure satisfy that the air conditioning unit whole power down of Current central, preserve data stabilization, accurately.
Further, this utility model central air-conditioning controller power failure data back-up device, low-power consumption master controller uses model to be STM8L, can realize reading and writing MicroSD card memory, read real-time timepiece chip, communicate with central air-conditioning controller, simplify periphery design, reduce device power consumption and volume.
Further, central air-conditioning controller power failure data back-up device of the present utility model is accurate for data backup and the time of power down, it is desirable to can work long hours to provide lithium battery for oneself, therefore the power consumption of device is had higher requirement.The low-power consumption microcontroller STM8L that this utility model system uses is small size, low-power chip, possesses low power mode of operation, and system working power can use lithium battery power supply.
Further, small size that this utility model is applied for central air-conditioning data backup, Large Copacity, the design requirement of high stability, use MicroSD card as storage medium, it is possible to prevent the loss of data, covering that early stage backs up, can conveniently complete the derivation of Backup Data, it is simple to follow-up fault time positions and the analysis of central air-conditioning operation conditions.
Although having been described for preferred embodiment of the present utility model, but one of ordinary skilled in the art once knows basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of this utility model scope.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.
Claims (7)
1. a central air-conditioning controller power failure data back-up device, it is characterised in that including: low-power consumption master controller, memorizer, real-time clock, lithium battery；Described low-power consumption master controller connects described memorizer, described real-time clock, described lithium battery respectively；
Described memory stores data；
Described real-time clock provides the temporal information that data preserve；
Described low-power consumption master controller is when described central air-conditioning power down, operational factor and the user setup parameter of all online unit got up-to-date from the main control MCU of described central air-conditioning controller are saved in described memorizer, and the temporal information that reading current time information preserves as described data from described real-time clock preserves to described memorizer；
Described lithium battery provides power supply for described power failure data back-up device.
2. central air-conditioning controller power failure data back-up device as claimed in claim 1, it is characterised in that described memorizer is particularly as follows: safe digital card.
3. central air-conditioning controller power failure data back-up device as claimed in claim 2, it is characterised in that
The range of capacity of described safe digital card is 2GB to 32GB.
4. central air-conditioning controller power failure data back-up device as claimed in claim 1, it is characterized in that, described low-power consumption master controller can obtain operational factor and the user setup parameter of current Online unit when every the time of setting from the main control MCU of described central air-conditioning controller.
5. central air-conditioning controller power failure data back-up device as claimed in claim 4, it is characterized in that, described low-power consumption master controller continues to monitor master control supply voltage, when monitoring described master control supply voltage less than the threshold value set, operational factor and the user setup parameter of the up-to-date described all online units got are saved in described memorizer, and read the temporal information that current time information preserves as described data and preserve to described memorizer.
6. central air-conditioning controller power failure data back-up device as claimed in claim 4, it is characterised in that described low-power consumption master controller enters Low-power-consumptiodormancy dormancy pattern after preservation is complete.
7. central air-conditioning controller power failure data back-up device as claimed in claim 1, it is characterised in that after having unit to restore electricity, corresponding operational factor and user setup parameter are sent to the unit restored electricity by described low-power consumption master controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987593.5U CN205427831U (en) | 2015-12-02 | 2015-12-02 | Central air conditioning controller falls electric data backup device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520987593.5U CN205427831U (en) | 2015-12-02 | 2015-12-02 | Central air conditioning controller falls electric data backup device |
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| CN205427831U true CN205427831U (en) | 2016-08-03 |
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| CN201520987593.5U Expired - Fee Related CN205427831U (en) | 2015-12-02 | 2015-12-02 | Central air conditioning controller falls electric data backup device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108334000A (en) * | 2018-03-20 | 2018-07-27 | 广州大学 | A kind of power supply control apparatus and system of artificial intelligence behavior body |
| CN110633057A (en) * | 2019-09-24 | 2019-12-31 | 京信通信系统（中国）有限公司 | Method and device for storing setting parameters, computing equipment and storage medium |
| CN114490194A (en) * | 2022-04-19 | 2022-05-13 | 海光信息技术股份有限公司 | Power failure processing method, functional node, processing system, device and storage medium |
-
2015
- 2015-12-02 CN CN201520987593.5U patent/CN205427831U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108334000A (en) * | 2018-03-20 | 2018-07-27 | 广州大学 | A kind of power supply control apparatus and system of artificial intelligence behavior body |
| CN110633057A (en) * | 2019-09-24 | 2019-12-31 | 京信通信系统（中国）有限公司 | Method and device for storing setting parameters, computing equipment and storage medium |
| CN114490194A (en) * | 2022-04-19 | 2022-05-13 | 海光信息技术股份有限公司 | Power failure processing method, functional node, processing system, device and storage medium |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20171202 |