Device and method for storing and reading addresses of multi-connected air conditioners
A multi-connected air conditioner and address technology, which is applied in the field of air conditioners, can solve problems such as multi-connected air conditioner systems cannot operate normally, achieve the effect of reducing after-sales maintenance costs and improving operational reliability
Active Publication Date: 2017-06-23
四川启睿克科技有限公司
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Problems solved by technology
In practical engineering applications, when the staff installs multi-connected air conditioners, they will assign different addresses to each air conditioner and store the addresses in the storage device. During later use, if there are one or more When the air conditioner control processor MCU reads data from the storage device, the address of one or more air conditioners will be reset to the initial value 0 by the MCU (the address of the air conditioner is 0, which is regarded as an invalid address in communication and is not subject to wire control. controller and outdoor unit control), so that it cannot communicate with the wire controller and outdoor unit normally, which will cause the entire multi-connected air conditioning system to fail to operate normally
Method used
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[0051] In this example, the initial value of the air conditioner address is set to 0, and the range of the air conditioner address is 1 to 128 after the address is assigned or set. The storage device in this example is an EEPROM Eeprom.
[0052] The first byte BYTE0 of the data to be stored is the Eeprom initialization flag byte, the second byte BYTE1 is the address value of the air conditioner, the third byte BYTE2 is the address value of the air conditioner plus 5, and the fourth byte BYTE3 is the air conditioner Add 10 to the address value, followed by N other data bytes, the penultimate byte BYTE (N+4) is the high byte of the 16-bit CRC check, and the last BYTE (N+5) is the low byte of the 16-bit CRC check bytes, as shown in Table 2.
[0053] Table 2 storage data byte allocation table
[0054]
[0055] But not limited to the rules mentioned in this example, other rules that can check the correctness of the address of the air conditioner are also available. Through th...
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The invention relates to air conditionings, specifically to an apparatus and a method for storing and reading multi-coupled air conditioning addresses so as to increase multi-coupled air conditioning operation reliability. The apparatus comprises a microprocessor unit, a storing device, an external power supply terminal, a first resistor, a second resistor and a capacitor, wherein the storing device is an electrically erasable programmable read-only memory, the one terminal of the first resistor, the one terminal of the second resistor and the direct current voltage input pin of the storing device are connected with the external power supply terminal, the other terminal of the first resistor and the microprocessor unit communication clock control pin are connected with the storing device communication clock control pin, the other end of the second resistor and the microprocessor unit communication data input and output pin are connected with the storing device communication data input and output pin, the one terminal of the capacitor is connected with the storing device direct current voltage input pin, the storing device comprises an address setting input pin, and the grounding pin of the storing device, the write protection input pin and the other terminal of the capacitor are respectively connected with the ground. The apparatus and the method are suitable for the multi-coupled air conditioning.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a device and method for storing and reading addresses of multi-connected air conditioners. Background technique [0002] At present, the storage method of the multi-connected air conditioner address is: when the power is first turned on, the air conditioner control processor (MCU, microprocessor Unit) stores the initial address 0 of the air conditioner and the initial value of other data to be stored in the storage device; then, when After the address of the air conditioner is allocated or other data to be stored changes, the allocated address of the air conditioner and other data to be stored are stored in the storage device. Once an error occurs when the MCU reads data from the storage device, the MCU will reset all the data in the storage device to the initial value, and of course the address of the air conditioner will also become the initial value 0. Commonly used ...
Claims
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IPC IPC(8): G11C8/16
Inventor 严刚刘运中赵寰黄欣欣张天富荣霞芳高向军侯宝成
Owner 四川启睿克科技有限公司