CN102322672B - Method for controlling multiple air-conditioned indoor units by using single wire control device - Google Patents
Method for controlling multiple air-conditioned indoor units by using single wire control device Download PDFInfo
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- CN102322672B CN102322672B CN 201110225460 CN201110225460A CN102322672B CN 102322672 B CN102322672 B CN 102322672B CN 201110225460 CN201110225460 CN 201110225460 CN 201110225460 A CN201110225460 A CN 201110225460A CN 102322672 B CN102322672 B CN 102322672B
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Abstract
The invention provides a method for controlling multiple air-conditioned indoor units by using a single wire control device. The method comprises the following steps: (1) connecting wires and sending out an order; (2) receiving the order and analyzing the order; (3) forwarding the order; (4) executing and feeding back; (5) returning an execution result. A control signal can be sent based on a CSMA/CD (carrier sense multiple access/collision detect) protocol, the order of the wire control device can be sent through indoor and outdoor buses, and one single wire control device can control multiple indoor units only by virtue of one connecting wire, thus the installation cost and material cost can be effectively reduced, and the phenomena of chaos communication and mistaken operation caused by control of multiple connecting wires can be avoided.
Description
Technical field
The present invention relates to relate to a kind of air-conditioning equipment system communication control method, be specifically related in the air-conditioning unit, many indoor sets share the control method of single line control machine.
Background technology
At present, in business air conditioner, major part has adopted the form of wire remote control devices, that wire remote control devices has advantages of is easy to operate, intuitive display and reliability high.According to the user, air-conditioning is controlled the needs of convenience, comfort level requirement raising, used single wire remote control devices to control many indoor sets, be convenient to the centralized operation management.
As shown in Figure 1, when adopting single line control machine to control n platform indoor apparatus of air conditioner, need n root connecting line that line control machine and indoor apparatus of air conditioner are coupled together, installation procedure is complicated, and material cost is high; And on control program, line control machine need to coordinate n platform indoor apparatus of air conditioner, distinguishes different control commands, sometimes unavoidable conflict and the mistake that occurs in communication.
CSMA/CD agreement (Carrier Sense Multiple Access/Collision Derect), it is csma/collision detection method, it is a kind of media access control protocol of contention type, it originates from the contention type agreement that the ALOHA network of Hawaii, America university exploitation adopts, and improve, make it to have the Utilizing Rate higher than ALOHA agreement.Therefore, designing and developing a kind of method of the controlling multiple air-conditioned indoor units by using single wire control based on the CSMA/CD agreement, is the technical problem that needs to be resolved hurrily.
Summary of the invention
Deficiency for the prior art existence, technical problem to be solved by this invention is, a kind of method of controlling multiple air-conditioned indoor units by using single wire control is provided, transmit control signal based on the CSMA/CD agreement, the bus of the order of line control machine being passed through indoor and outdoor sends, only use a connecting line to realize that single line control machine controls many indoor sets, effectively reduce installation cost and material cost, avoid because many connecting lines are controlled respectively the chaotic appearance with the faulty operation phenomenon of the communication that causes.
For solving the problems of the technologies described above, the technical solution used in the present invention is that a kind of method of controlling multiple air-conditioned indoor units by using single wire control transmits control signal based on the CSMA/CD agreement, comprises the steps:
(1) connection line, give an order: many indoor sets are connected with off-premises station respectively, select in many indoor sets any one to be connected with line control machine as the transfer indoor set, line control machine is given an order to the transfer indoor set;
(2) reception is ordered and analyzes: the transfer indoor set receives order and the answer from line control machine, then by analyzing command address, finds out the indoor set identical with command address, confirms as the target indoor set that order is pointed to;
(3) pass on order: the transfer indoor set forwards the order of line control machine to the target indoor set, the target indoor set receives orders and answers;
(4) carry out and feed back: the target indoor set is carried out the line control machine order that receives, and after being finished, sends execution result to the transfer indoor set;
(5) pass execution result back: the transfer indoor set receives execution result and answers, and then passes execution result back line control machine, and line control machine receives execution result and answers, and is complete.
The method of above-mentioned controlling multiple air-conditioned indoor units by using single wire control, during step (2) receives and to order and analyze, the transfer indoor set receives order and the answer from line control machine, then by analyzing command address, draw the indoor set identical with command address and be oneself, the transfer indoor set changes to the target indoor set thus, carry out the line control machine order, pass execution result back line control machine after being finished, line control machine receives and answers, and is complete.
The present invention has following advantage and beneficial effect:
1. realized that single line control machine sends order by the bus of indoor and outdoor, controlled many indoor sets, economized on resources;
2. only use a connecting line, simplify installation procedure, save installation cost and material cost;
3. effectively avoid owing to controlling respectively the chaotic appearance with the faulty operation phenomenon of the communication cause.
Description of drawings
Fig. 1 is syndeton schematic diagram of the prior art;
Fig. 2 is syndeton schematic diagram of the present invention;
Fig. 3 is communication sequential schematic of the present invention.
The specific embodiment
Embodiment 1
As shown in the figure, the present embodiment is that single line control machine is controlled three indoor sets, transmits control signal based on the CSMA/CD agreement, comprises the steps:
(1) connection line, give an order: indoor set 1, indoor set 2, indoor set 3 are connected with off-premises station respectively, select indoor set 1 to be connected with line control machine as the transfer indoor set, line control machine sends the power-on command of controlling indoor set 3 to indoor set 1;
(2) receive and order and to analyze: indoor set 1 receives from the power-on command of line control machine and answers ACK, then by analyzing the address in power-on command, finds out command address identical with indoor set 3 addresses, confirms that indoor set 3 is the target indoor sets of ordering sensing;
(3) pass on order: indoor set 1 forwards power-on command to indoor set 3, and indoor set 3 is received power-on command and answered ACK;
(4) carry out and feed back: indoor set 3 is carried out power-on command, start shooting complete after, the transmission execution result is to indoor set 1;
(5) pass execution result back: indoor set 1 receives execution result and answers ACK, then passes execution result back line control machine, and line control machine receives execution result and answers ACK, and is complete.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: during step (2) receives and to order and analyze, indoor set 1 receives from the power-on command of line control machine and answers ACK, then by analyzing the address in power-on command, draw command address identical with the address of oneself, indoor set 1 changes to the target indoor set by the transfer indoor set thus, carries out power-on command, passes execution result back line control machine after being finished, line control machine receives and answer ACK, and is complete.
The above is only to preferred embodiment of the present invention, is not to be that the present invention is done other forms of restriction, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every the present invention program's content that do not break away to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belongs to protection scope of the present invention according to technical spirit of the present invention.
Claims (2)
1. the method for a controlling multiple air-conditioned indoor units by using single wire control, is characterized in that, transmits control signal based on the CSMA/CD agreement, comprises the steps:
(1) connection line, give an order: many indoor sets are connected with off-premises station respectively, select in many indoor sets any one to be connected with line control machine as the transfer indoor set, line control machine is given an order to the transfer indoor set;
(2) reception is ordered and analyzes: the transfer indoor set receives order and the answer from line control machine, then by analyzing command address, finds out the indoor set identical with command address, confirms as the target indoor set that order is pointed to;
(3) pass on order: the transfer indoor set forwards the order of line control machine to the target indoor set, the target indoor set receives orders and answers;
(4) carry out and feed back: the target indoor set is carried out the line control machine order that receives, and after being finished, sends execution result to the transfer indoor set;
(5) pass execution result back: the transfer indoor set receives execution result and answers, and then passes execution result back line control machine, and line control machine receives execution result and answers, and is complete.
2. the method for controlling multiple air-conditioned indoor units by using single wire control according to claim 1, it is characterized in that: during step (2) receives and to order and analyze, the transfer indoor set receives order and the answer from line control machine, then by analyzing command address, draw the indoor set identical with command address and be oneself, the transfer indoor set changes to the target indoor set thus, carry out the line control machine order, pass execution result back line control machine after being finished, line control machine receives and answers, and is complete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110225460 CN102322672B (en) | 2011-08-08 | 2011-08-08 | Method for controlling multiple air-conditioned indoor units by using single wire control device |
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| CN 201110225460 CN102322672B (en) | 2011-08-08 | 2011-08-08 | Method for controlling multiple air-conditioned indoor units by using single wire control device |
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| CN102322672A CN102322672A (en) | 2012-01-18 |
| CN102322672B true CN102322672B (en) | 2013-06-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107202407A (en) * | 2017-06-19 | 2017-09-26 | 青岛海信日立空调系统有限公司 | A kind of air conditioner fire alarm method, apparatus and system based on line control machine |
| CN107202407B (en) * | 2017-06-19 | 2019-12-03 | 青岛海信日立空调系统有限公司 | A kind of air conditioner fire alarm method, apparatus and system based on line control machine |
| CN108019881A (en) * | 2017-11-10 | 2018-05-11 | 青岛海尔空调电子有限公司 | Line control machine method for controlling power supply, device and the air conditioner of multi-connected air conditioning system |
| CN108019881B (en) * | 2017-11-10 | 2021-05-25 | 青岛海尔空调电子有限公司 | Wire controller power supply control method and device of multi-connected air conditioning system and air conditioner |
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| CN102322672A (en) | 2012-01-18 |
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