Fault determination device, fault determination and collection circuit and determination method of neutral and live line communication equipment
A technology for collecting circuits and communication equipment, applied in the field of fault detection, can solve problems such as inability to accurately locate faults, and achieve the effect of improving maintenance efficiency
Active Publication Date: 2017-05-17
GREE ELECTRIC APPLIANCES INC
View PDF4 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of this, the purpose of the present invention is to propose a communication fault determination circuit and method to solve the problem that the existing technology cannot accurately locate the fault. The present invention subdivides the communication fault into indoor unit communication fault and outdoor unit communication fault, And it can be specific to the corresponding circuit module, which provides maintenance personnel with a very convenient means of troubleshooting, greatly improving work efficiency and reducing duplication of labor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] Zero FireWire communication, which uses electric current as a carrier to transmit data, has been widely used in the field of industrial control. For example, such as figure 1 As shown, the traditional air-conditioning zero-fire wire communication circuit mainly includes the outdoor unit of the air conditioner, the indoor unit of the air conditioner, and the current source and communication line between the two. The level signal on the communication line is a three-level signal-0V, 28V, 56V (the voltage value can be different according to different designs, and these three voltages are used as an example for illustration). Among them, 28-56V is generally the signal sent by the internal machine end, and 0-28V is generally the signal sent by the external machine end; the waveform of the signal level is as detailed as figure 2 Shown.
[0030] In order to solve the problem that the zero-fire line communication equipment cannot accurately locate the fault location, the present ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a fault determination device, a determination and collection circuit and a fault determination method of neutral and live line communication equipment. The fault determination device comprises the determination and collection circuit and a signal processing circuit; the determination and collection circuit is connected with a communication line and a neutral line, collects voltage interval information and communication data to the communication line, and outputs the information and data to the signal processing circuit; and the signal processing circuit is connected with one end of the determination and collection circuit, receives the voltage interval information and communication data output by the determination and collection circuit, and determines the fault type and locates a fault by utilizing a processing algorithm according to the voltage interval information and communication data. According to the invention, it is not required to dismount a communication line, the communication fault of the neural and zero lines can be determined comprehensively according to distribution of voltage and communication data in the loop, the communication fault can be located in a corresponding circuit board, a convenient fault checking means is provided for maintenance staff, the working efficiency is improved greatly, and repeated work is reduced.
Description
Technical field [0001] The present invention relates to the technical field of fault detection, in particular to a fault determination device, a determination collection circuit and a determination method used for zero-fire wire communication equipment. Background technique [0002] Most of the current air conditioner indoor units and outdoor units use zero-fire wire communication (current loop communication). When the air conditioner has a communication failure, the air conditioner itself can only know that the communication has failed, and cannot distinguish whether it is an outdoor unit or an outdoor unit. Communication failure caused by indoor unit. This will cause great inconvenience for maintenance personnel to find the problem. [0003] The prior art discloses a communication fault detection method and detection device, which mainly use valid data to determine the communication fault to the indoor unit and outdoor unit of the air conditioner. However, it cannot accurately l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04L12/24F24F11/00
CPCH04L41/0677F24F11/30F24F11/62F24F11/58
Inventor 杨赛赛潘高强李喜林
Owner GREE ELECTRIC APPLIANCES INC