Two-core non-polar bus communication power supply method and device, and communication system
A technology of bus communication and power supply method, applied in circuit devices, emergency protection circuit devices, information technology support systems, etc., can solve problems such as low power supply reliability, and achieve the effect of improving power supply reliability and avoiding power supply conflicts.
Pending Publication Date: 2021-06-01
GREE ELECTRIC APPLIANCES INC
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[0004] Based on this, it is necessary to address the problem of low power supply reliability of the traditional two-core non-polar bus communication system, and provide a two-core non-polar bus communication power supply method, device and communication system, which can effectively improve the power supply reliability.
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[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.
[0036] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an in...
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The invention relates to a two-core non-polar bus communication power supply method and device, and a communication system. The method comprises the following steps: detecting a power supply direction of a bus; when the bus has no power supply direction, supplying power to the bus, and counting positive and negative power supply data of each unit on the bus; and when a preset power supply switching condition is detected, sending a same-direction power supply signal to the bus according to the positive and negative power supply data, wherein the same-direction power supply signal is used for controlling the same-direction power supply units on the bus to start power supply. When power supply switching needs to be carried out, the units which supply power in the same direction on the bus are controlled to supply power at the same time, short circuit caused by power supply conflicts can be avoided, and power supply reliability can be effectively improved.
Description
technical field [0001] The present application relates to the technical field of smart device communication, in particular to a two-core non-polar bus communication power supply method, device and communication system. Background technique [0002] The two-core non-polar HOMEBUS (home bus) communication system is a communication method without wiring sequence designed to prevent the installation crew from connecting the wrong wires. It needs to have both power supply and communication functions. [0003] In the traditional two-core non-polar bus communication system, in order to avoid problems such as short circuits caused by power supply conflicts, generally one node of the system provides power, but if there are too many communication nodes, the power supply capacity of a single node is limited, and there is a disadvantage of low power supply reliability . Contents of the invention [0004] Based on this, it is necessary to address the problem of low power supply reliab...
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IPC IPC(8): H02J3/00H02J13/00H02H3/08H02H3/04H02H1/00H04L12/10
CPCH02H1/0007H02H3/04H02H3/08H04L12/10H02J3/007H02J13/00001H02J13/00016Y02B90/20Y02E60/00Y04S10/20Y04S40/124
Inventor 邹宏亮杜恺刘智荣解超群彭京
Owner GREE ELECTRIC APPLIANCES INC