CN101852472A - Automatic addressing method for air conditioning system and air conditioning controller - Google Patents
Automatic addressing method for air conditioning system and air conditioning controller Download PDFInfo
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- CN101852472A CN101852472A CN200910106479A CN200910106479A CN101852472A CN 101852472 A CN101852472 A CN 101852472A CN 200910106479 A CN200910106479 A CN 200910106479A CN 200910106479 A CN200910106479 A CN 200910106479A CN 101852472 A CN101852472 A CN 101852472A
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Abstract
The invention discloses an automatic addressing method for an air conditioning system. A first air conditioning serves as a master machine and the other air conditionings serve as slave machines. The method comprises the following steps that: the master machine sends broadcast information to notify the slave machines to enter an automatic addressing mode and the slave machines restore the addresses per se to initial addresses; the master machine transmits the addresses to be allocated, wherein the addresses to be allocated add one automatically, the slave machines receive the addresses to be allocated and transmit response information which comprises the allocated addresses to be competed by the slave machines and the MAC addresses of the slave machines; if receiving the response information from the slave machines, the master machine transmits the address acknowledgement information which comprises the allocated addresses successfully competed by the slave machines and the MAC addresses of the slave machines; and after the addressing of all controllers is finished, the master machine transmits the broadcast information to notify the slave machines to finish the automatic addressing state and the master machine and the slave machines quit the automatic addressing state. The air conditioning system can be simply and easily subjected to automatic addressing by the method without easy error. The invention also discloses an air conditioning controller.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, relate to a kind of air-conditioning system automatic addressing method and air-conditioner controller.
Background technology
Present VRV/VRF (Varied Refrigerant Volume/Variable Refrigerant Flow, the variable refrigerant flow) air-conditioning system is similar to the split-type air conditioner unit on system architecture, single refrigeration system is general to adopt an off-premises station to connect one group of indoor set, or many off-premises stations more indoor set that is connected in parallel is formed a bigger air-conditioning system.A plurality of refrigeration systems can also be formed bigger air-conditioner control system by self controlling the network interconnection together in actual applications.And need to transmit a large amount of control informations and status information in the system between each unit.Be sent to correct object in order to ensure information in communication, this address (identity) that need guarantee each object is unique, and is discernible.
In existing technology, in order to guarantee installation flexibility, the address generally all is to be set by the toggle switch on the controller, is set by installation personnel in the erecting bed temporarily.In order to guarantee the uniqueness of address, 128 indoor sets just need one 7 toggle switch.Toggle switch adopts the binary system assigned code, supposes that ON represents 1, and OFF represents 0, and the binary system assigned code of No. 68 addresses is exactly 1000100 so, and corresponding dial-up position is: ON OFF OFF OFF ON OFF OFF.As seen, finish the work of addressing in the prior art by installation personnel, just manually set toggle switch, its shortcoming is to make mistakes easily.In case address assignment sign indicating number mistake, installation personnel just may need to check the address assignment sign indicating number of all indoor sets, and address error generally only could be found after system's installation, will dismantle the earlier shell of indoor set of installation personnel is checked the address assignment sign indicating number more like this, and workload is huge.
Summary of the invention
The technical problem to be solved in the present invention is: during at the artificial addressing address in existing air-conditioning system existing workload greatly, make mistakes easily, defective such as easy care not, a kind of new air-conditioning system automatic addressing method is provided, can be to the indoor set in the air-conditioning system, other controller on off-premises station and the bus carries out automatic addressing respectively, simple, be not easy to make mistakes.
The present invention solves a kind of technical scheme that its technical problem adopts: a kind of method of air-conditioning system automatic addressing, and wherein an air-conditioning is a main frame, other air-conditioning is a slave, comprises step:
Main frame sends broadcast message, and the notice slave enters the automatic addressing state, and slave reverts to initial address with the address of oneself;
Main frame sends address to be allocated, and address to be allocated adds 1 automatically, and slave receives address to be allocated and sends it back the information of answering, and described echo message comprises from the address of confidential competition and the MAC Address of slave;
If main frame receives the echo message of slave, then send Address Confirmation information, described Address Confirmation information comprises the address that slave competition is successful and the MAC Address of slave;
After all controller addressings were finished, main frame sent broadcast message, and notice slave automatic addressing state finishes, and main frame and slave withdraw from the automatic addressing state.
Method further comprises:
Slave is judged whether one's own type of address to be allocated that main frame sends; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
Method also further comprises:
Whether the address of judging oneself has reverted to initial address; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
Method also further comprises:
If main frame does not receive the response of some slaves, then continue to send address information to be allocated, and judge whether unsuccessful number of times surpasses set point number, if surpass pre-determined number, then main frame withdraws from the addressing to this slave.
Described pre-determined number is 3 times.
A kind of air-conditioner controller comprises:
Distribute scalar/vector, be used to generate address to be allocated, described each address to be allocated is unique;
Transmitting element, the address to be allocated that is used for distributing scalar/vector to generate sends to other controllers on the bus; And sending Address Confirmation message to other controllers, described Address Confirmation message comprises successful distribution address and the MAC Address of other controller competitions;
Receiving element is used to receive the response message of other controllers on the bus, and described response message comprises distribution address and the MAC Address that other controllers will be competed;
The MAC Address generation unit is used for the MAC Address of formation controller.
Controller also further comprises:
The address style judging unit is used to judge whether one's own type of the address to be allocated that receives, and judged result is returned to receiving element and transmitting element.
Controller also further comprises:
The initial address judging unit is used to judge whether the address of oneself has reverted to initial address, and judged result is returned to receiving element and transmitting element.
Controller also further comprises:
Number of times statistics judging unit is used to judge whether the number of times that can't receive other controller responses surpasses set point number, and judged result is returned to receiving element and transmitting element.
Controller also further comprises:
Whether cyclic-redundancy-check unit is used to check the data of controller reception correct, has only the correct communications data frame of verification just can be received.
Compared with prior art, the method for air-conditioning system automatic addressing provided by the invention, simple, be not easy to make mistakes.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the method flow diagram of a kind of air-conditioning system automatic addressing of providing of the embodiment of the invention;
Fig. 2 is off-premises station and indoor set connection diagram;
Fig. 3 is a kind of air-conditioner controller schematic diagram that the embodiment of the invention provides.
The specific embodiment
As shown in Figure 1, the embodiment of the invention discloses a kind of method of air-conditioning system automatic addressing.
Air-conditioning broadcasting automatic addressing information wherein on the present embodiment random start bus, then this air-conditioning is as main frame, and other air-conditioning is as slave on the bus, and described method comprises step:
Step 101: main frame sends broadcast message, and the notice slave enters the automatic addressing state, and slave reverts to initial address with the address of oneself;
Step 102: main frame sends address to be allocated, address to be allocated adds 1 automatically, slave receives address to be allocated and sends it back the information of answering, and described echo message comprises from the distribution address of confidential competition and the MAC of slave (Media Access Control, medium access control) address;
In the embodiment of the invention, described address to be allocated is the continuous sequence number that main frame generates.Described address to be allocated is the set from the address of confidential competition.
In the embodiment of the invention, after main frame sent an address to be allocated at every turn, address to be allocated added 1 automatically, and each address that assurance sends to extension set all is unique.
Step 103: if main frame receives the echo message of slave, then send Address Confirmation information, described Address Confirmation information comprises the distribution address that slave competition is successful and the MAC Address of slave;
Step 104: main frame sends broadcast message, and notice slave automatic addressing state finishes, and main frame and slave withdraw from the automatic addressing state.
Need to prove, in the said method step 102, also comprise: slave is judged whether one's own type of address to be allocated that main frame sends; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
Need to prove, in the said method step 102, also comprise: whether the address of judging oneself still is initial address; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
Need to prove, said method step 103 also comprises another kind of situation, if main frame does not receive the response of some slaves, then continue to send address information to be allocated, and judge whether unsuccessful number of times surpasses set point number, if surpass pre-determined number, then main frame withdraws from the addressing to this slave.
Being that example describes the specific embodiment of the present invention in detail below with Fig. 2, is that main frame illustrates with an off-premises station wherein, can carry out automatic addressing by following steps:
Step 1: press the addressing button of off-premises station, the controller on this off-premises station will send the order that enters automatic addressing by bus each controller on bus, and each controller returns to initial address with own existing address, enters the automatic addressing state.At this moment the off-premises station that presses the button just is main frame, and other controller all is a slave.If main frame at first addresses off-premises station.
Step 2: host broadcast is sent address to be allocated, after receiving, slave at first judges the controller type of oneself, if this address is in the pairing address realm of the type of oneself, and the address of oneself still is an initial address, then send out an echo message through behind the random delay time, this information has comprised from the address of confidential competition and the MAC Address of slave.Communication mechanism has determined to have only at this moment the successful arrival main frame of information energy of a slave.
In order to reduce the situation that conflict appears in bus as far as possible, slave preferably is set to receive under the situation about satisfying condition behind the address to be allocated and sends echo message through behind the random delay time.
Step 3:, will send an Address Confirmation information if main frame is received the address competition information of slave.This information has comprised competes the address of successful slave and the MAC Address of slave.After slave receives this information, will return an answer signal, and this address is stored, as the address of oneself, the competition of the address of no longer participating in the distribution later on.
If main frame is not received the response of a certain slave, main frame can be attempted step 2 once more, if after attempting all getting nowhere for three times, main frame can be thought a certain controller or even think that the controller of this type has addressed and finish that main frame will withdraw from the addressing to the controller of a certain controller or a certain type.
Step 4: indoor set is addressed.This process is with repeating step 2 and 3.After indoor set addressing finished, will enter next step, the controller of other type will be addressed.
Step 5: to all controllers all address finish after, main frame will send broadcast message, notice slave addressing finishes.Main frame and slave all withdraw from the automatic addressing state, enter normal operating condition.
As shown in Figure 3, according to said method, the present invention also specifically discloses a kind of air-conditioner controller, comprising:
Distribute scalar/vector 301, be used to generate address to be allocated, described each address to be allocated is unique;
Transmitting element 302, the address to be allocated that is used for distributing scalar/vector to generate sends to other controllers on the bus; And sending Address Confirmation message to other controllers, described Address Confirmation message comprises successful distribution address and the MAC Address of other controller competitions;
Receiving element 303 is used to receive the response message of other controllers on the bus, and described response message comprises distribution address and the MAC Address that other controllers will be competed;
MAC Address generation unit 304 is used for the MAC Address of formation controller, and in the embodiment of the invention, the MAC Address that it produced has 48, and manufacturer is carved into by chip, and guarantees that by chip manufacturer the MAC Address without any two devices is identical.This MAC Address is used for the communication frame of automatic addressing, and to guarantee controller when carrying out the address competition to main frame, the address competition data that each controller sends all are unique.
Need to prove that in the embodiment of the invention, described controller also further comprises:
Address style judging unit 305 is used to judge whether one's own type of the address to be allocated that receives, and judged result is returned to transmitting element 302 and receiving element 303.
Need to prove that in the embodiment of the invention, described controller also further comprises:
Initial address judging unit 306 is used to judge whether the address of oneself has reverted to initial address, and judged result is returned to transmitting element 302 and receiving element 303.
Need to prove that in the embodiment of the invention, described controller also further comprises:
Number of times statistics judging unit 307 is used to judge whether the number of times that can't receive other controller responses surpasses set point number, and judged result is returned to transmitting element 302 and receiving element 303.
Need to prove, in the embodiment of the invention, in order to guarantee the reliability of communication data, each controller also comprises one 16 CRC (Cyclical Redundancy Check, CRC) unit 308, guarantee to have only the correct communications data frame of verification just to understand controlled device and receive.
In the embodiment of the invention, adopted many masters' communication modes, such as adopting modes such as SPI (Serial PeripheralInterface, Serial Peripheral Interface) bus, serial bus, when guaranteeing automatic addressing, the controller on the communication bus can send data simultaneously to compete the address to main frame.
Different with traditional addressing mode, addressing mode of the present invention can carry out automatic addressing accurately, and the system management software can inquire the result of addressing according to the connection situation of system's reality.In addition, this addressing mode has been simplified the work of installation personnel greatly, has improved the reliability of system.
In addition, in the present invention, because the process of automatic addressing can change flow process according to actual needs flexibly all with the software realization.
Although above description is to be example with the VRF/VRV air-conditioning system, this invention is applicable to that too traditional one drags many air-conditionings and other air-conditioning network system.
In conjunction with the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong to protection scope of the present invention.
Claims (10)
1. the method for an air-conditioning system automatic addressing is characterized in that, wherein an air-conditioning is a main frame, and other air-conditioning is a slave, comprises step:
Main frame sends broadcast message, and the notice slave enters the automatic addressing state, and slave reverts to initial address with the address of oneself;
Main frame sends address to be allocated, and address to be allocated adds 1 automatically, and slave receives address to be allocated and sends it back the information of answering, and described echo message comprises from the distribution address of confidential competition and the MAC Address of slave;
If main frame receives the echo message of slave, then send Address Confirmation information, described Address Confirmation information comprises the distribution address that slave competition is successful and the MAC Address of slave;
After all controller addressings were finished, main frame sent broadcast message, and notice slave automatic addressing state finishes, and main frame and slave withdraw from the automatic addressing state.
2. method according to claim 1 is characterized in that, further comprises:
Slave is judged whether one's own type of address to be allocated that main frame sends; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
3. method according to claim 2 is characterized in that, also further comprises:
Whether the address of judging oneself has reverted to initial address; If send echo message after then receiving address to be allocated that main frame sends and random delay time.
4. method according to claim 1 is characterized in that, also further comprises:
If main frame does not receive the response of some slaves, then continue to send address information to be allocated, and judge whether unsuccessful number of times surpasses set point number; If surpass pre-determined number, then main frame withdraws from the addressing to this slave.
5. method according to claim 4 is characterized in that, described pre-determined number is 3 times.
6. an air-conditioner controller is characterized in that, comprising:
Distribute scalar/vector, be used to generate address to be allocated, described each address to be allocated is unique;
Transmitting element, the address to be allocated that is used for distributing scalar/vector to generate sends to other controllers on the bus; And sending Address Confirmation message to other controllers, described Address Confirmation message comprises successful distribution address and the MAC Address of other controller competitions;
Receiving element is used to receive the response message of other controllers on the bus, and described response message comprises distribution address and the MAC Address that other controllers will be competed;
The MAC Address generation unit is used for the MAC Address of formation controller.
7. controller according to claim 6 is characterized in that, also further comprises:
The address style judging unit is used to judge whether one's own type of the address to be allocated that receives, and judged result is returned to receiving element and transmitting element.
8. controller according to claim 7 is characterized in that, also further comprises:
The initial address judging unit is used to judge whether the address of oneself has reverted to initial address, and judged result is returned to receiving element and transmitting element.
9. controller according to claim 6 is characterized in that, also further comprises:
Number of times statistics judging unit is used to judge whether the number of times that can't receive other controller responses surpasses set point number, and judged result is returned to receiving element and transmitting element.
10. according to each described controller of claim 6-9, it is characterized in that, also further comprise:
Whether cyclic-redundancy-check unit is used to check the communication data of controller reception correct, has only the correct communications data frame of verification just can be received.
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| CN200910106479A CN101852472B (en) | 2009-04-01 | 2009-04-01 | Automatic addressing method for air conditioning system and air conditioning controller |
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| CN200910106479A CN101852472B (en) | 2009-04-01 | 2009-04-01 | Automatic addressing method for air conditioning system and air conditioning controller |
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