CN110504983B - Circuit control system, method and medium for integrating main machine and machine of indoor unit - Google Patents
Circuit control system, method and medium for integrating main machine and machine of indoor unit Download PDFInfo
- Publication number
- CN110504983B CN110504983B CN201910799441.5A CN201910799441A CN110504983B CN 110504983 B CN110504983 B CN 110504983B CN 201910799441 A CN201910799441 A CN 201910799441A CN 110504983 B CN110504983 B CN 110504983B
- Authority
- CN
- China
- Prior art keywords
- module
- indoor unit
- power supply
- circuit
- extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000006855 networking Effects 0.000 claims abstract description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 13
- 230000005236 sound signal Effects 0.000 claims description 18
- 230000010354 integration Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/186—Video door telephones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a circuit control system, a method and a medium for integrating main machines and machines of an indoor machine, wherein the system comprises: the device comprises a power input module, a power adjustment module, an electronic inductance circuit module, a circuit protection module, a constant current source switch module, a low-pass filter circuit module, a current detection circuit module, a main machine switching module, an extension power supply circuit module, a detection module, a video matching circuit module, an audio and communication BUS module, a two-wire BUS module and a PIN interface module. The invention can realize simple wiring through a non-polar networking technology, reduce the installation difficulty of a terminal user, unify the circuits of the main and branch devices of the indoor unit, reduce the pressure of a seller and inventory, realize the self-adaptive flexible switching effect of the main and branch devices of the indoor unit, avoid the problem of abnormal operation of the whole networking after the host is damaged, improve the flexible adjustment, adaptively detect the number of the host and the branch devices, and avoid the abnormal operation caused by a plurality of hosts or no host.
Description
Technical Field
The invention relates to the technical field of building indoor units, in particular to a circuit control system, a method and a medium for integrating main units and main units of an indoor unit.
Background
In modern life, with the continuous increase of residential districts and the improvement of living standard of the masses, the demand of the indoor interphone of the building of the residential districts is increased, the functionality, operability and safety of the indoor unit of the building are further improved, and a control system of the indoor unit of the building is needed, so that the effects of networking, setting and monitoring abnormity can be realized.
However, in the process of research and practice of the prior art, the inventor of the present invention finds that the existing indoor units generally adopt polar networking, and need to remember the connection sequence of each indoor unit, and particularly when a plurality of indoor units are networked simultaneously, when one indoor unit is connected in a wrong line sequence, the whole system is paralyzed, the wiring is cumbersome, and the installation requirement of a common terminal user is too high; and some novel indoor unit owner and extension adopt nonpolarity network deployment, because there is different difference on host computer and the extension circuit, consequently host computer and extension equipment can not share, lack the host computer and can lead to entire system can not normally work to a network deployment system can only have a host computer, and system flexibility is lower. When the host fails, the end user must maintain the host in the whole networking system to work normally. Meanwhile, the number of hosts and extensions for each market cannot be determined, resulting in difficulty in stock of companies. On the other hand, the intelligent degree of the existing indoor unit main and extension sets is low, and the main and extension sets are selected generally through hardware modes such as cap-jumping short circuit and dial switches, or one main unit is fixed, and the main and extension terminal users can not adjust the position of the main unit in real time basically, and even the problem that point-to-point internal calling of the main unit and the extension sets is difficult is caused.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a circuit control system, a method and a medium for integrating indoor unit main units, so as to implement adaptive flexible switching of the indoor unit main units.
To solve the above problems, an embodiment of the present invention provides a circuit control system for integrating main units and sub-units of an indoor unit, including:
the power input module is used for providing an input power supply for the circuit device integrated with the indoor unit main machine;
the power supply adjusting module comprises a rectifier bridge for realizing the nonpolarity of a power supply and a pi-type filter for improving the EMC anti-jamming capability of the circuit;
the electronic inductance circuit module is used for providing corresponding ohmic impedance and direct-current voltage of the working circuit within the normal frequency range of the speaking of the user;
the circuit protection module comprises a diode for preventing the electric leakage of the electronic inductance circuit, an RC (resistance-capacitance) loop for matching audio frequency and communication impedance and a thermistor for short-circuit protection;
the constant current source switch module comprises a host constant current source switch for selecting a power supply, audio and communication impedance when the indoor unit is switched to be a host, and an extension constant current source switch for selecting the power supply, the audio and the communication impedance when the indoor unit is switched to be an extension;
the low-pass filter circuit module is used for filtering video signals received by the indoor unit;
the current detection circuit module is used for detecting the power supply current of the two-wire BUS module of the host;
the main machine switching module comprises a double-pole double-throw switch used for switching the indoor machine into a main machine and an extension machine;
the extension power supply circuit module is used for providing a non-polar input power supply for the audio and communication buses of the extension through the rectifier bridge by the host, and enabling the audio and communication buses to be in interactive connection with the two-wire BUS;
and the detection module is used for automatically acquiring the number and the address information of the indoor unit host and the indoor unit extension in real time in an inquiry mode when the equipment is powered on and works, and sending an address conflict warning.
Further, the circuit control system for the integration of the main machine and the machine of the indoor machine further comprises:
the video matching circuit module is used for improving the quality of the video signal received by the equipment;
the audio and communication bus module is used for accessing an audio signal, a power supply signal and a communication signal;
the two-line BUS module is used for transmitting signals including audio signals, video signals, power supplies and communication signals by staggering the frequency of each signal;
and the PIN interface module is used for respectively connecting the power supply, the door phone and the indoor units.
Further, the RC loop impedance is set to be 100-300 omega.
Further, the audio equivalent impedance value range of the electronic inductance circuit is greater than 1.5k ohm impedance, and the direct current voltage is less than 3V.
Further, the current detection circuit module further includes: when the power supply current of the two-wire BUS module is detected to exceed a preset value, the current detection current module executes power-off operation to cut off the power supply of the two-wire BUS module.
Further, the host constant current source switch is specifically configured to select a corresponding power supply, an audio signal, and a communication impedance after switching a current indoor unit to a host, and supply power to the outdoor unit and the indoor unit extension sets in the group network, so that the audio signal and the video signal are amplified through the RC loop, and the constant current source is used to provide the ground impedance of the audio signal and the communication signal.
Further, the extension constant current source switch is specifically used for connecting an extension power supply circuit to provide a power supply source, an audio signal and a communication path for the indoor unit after the current indoor unit is switched to the extension, and stopping supplying power to the entrance unit and the indoor unit extension in the group network.
Another embodiment of the present invention provides a circuit control method for integrating main units and sub-units of an indoor unit, which at least includes the following steps:
directly connecting a plurality of indoor units to be connected together through 2 lines to complete networking;
the method comprises the steps that a current indoor unit is set as a host, a host constant current source switch of the indoor unit is controlled to be conducted, an extension constant current source switch of the indoor unit is disconnected, a double-pole double-throw switch is connected to a low-pass filter circuit module in a switching mode, so that an input power supply sequentially passes through a power supply adjusting module, an electronic inductance circuit module, a circuit protection module, a host constant current source switch module, an audio and communication bus module, a low-pass filter circuit module, a host switching module and a video matching module, power is supplied to audio and communication bus modules of indoor unit extensions in a doorway machine and a networking machine, switching of the indoor unit host is completed, and audio and communication signals of the indoor unit host interact with the doorway machine and indoor unit extensions in the networking machine sequentially through the video matching module, the host switching module;
setting the current indoor unit as an extension, controlling a host constant current source switch of the indoor unit to be switched off, and switching on the extension constant current source switch of the indoor unit, wherein a double-pole double-throw switch is switched and connected to an extension power supply circuit module, the indoor unit stops supplying power to the entrance unit and the indoor unit extension in the network, and audio and communication signals sequentially pass through a video matching module, a main unit switching module, an extension power supply circuit module, an extension constant current source switch and an audio and communication bus module to interact with the entrance unit and the indoor unit host in the network;
the number and address information of the indoor machine host and the indoor machine extension are automatically acquired in real time in a software inquiry mode, and when abnormal information is detected, an address conflict warning is sent out.
Further, the circuit control method for integrating the main units and the machine units of the indoor unit further comprises the following steps:
detecting the power supply current of the two-wire BUS module in real time, and judging whether the power supply current exceeds a preset value;
and if so, the current detection current module executes power-off operation to cut off the power supply of the two-wire BUS module.
An embodiment of the present invention further provides a computer-readable storage medium, which includes a stored computer program, where when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the circuit control system for indoor unit main-computer unification as described above.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a circuit control system, a method and a medium for integrating main machines and machines of an indoor machine, wherein the system comprises: the device comprises a power input module, a power adjustment module, an electronic inductance circuit module, a circuit protection module, a constant current source switch module, a low-pass filter circuit module, a current detection circuit module, a main machine switching module, an extension power supply circuit module, a detection module, a video matching circuit module, an audio and communication BUS module, a two-wire BUS module and a PIN interface module. The invention can realize simple wiring through a non-polar networking technology, reduce the installation difficulty of a terminal user, unify the circuits of the main and branch devices of the indoor unit, reduce the pressure of a seller and inventory, realize the self-adaptive flexible switching effect of the main and branch devices of the indoor unit, avoid the problem of abnormal operation of the whole networking after the host is damaged, improve the flexible adjustment, adaptively detect the number of the host and the branch devices, and avoid the abnormal operation caused by a plurality of hosts or no host.
Drawings
Fig. 1 is a schematic structural diagram of a circuit control system for integrating main units and sub-units of an indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a circuit device of a circuit control system for integrating main units and sub-units of an indoor unit according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a circuit control method for integrating main units and sub-units of an indoor unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides an application scenario, such as providing a circuit control system for integrating main units and sub-units of an indoor unit.
The first embodiment of the present invention:
please refer to fig. 1-2.
As shown in fig. 1, the present embodiment provides a circuit control system for integrating main units and sub-units of an indoor unit, including:
the power input module 100 is used for providing an input power supply for the circuit device integrated with the indoor unit main machine;
the power supply adjusting module 200 comprises a rectifier bridge for realizing the nonpolarity of a power supply and a pi-type filter for improving the EMC anti-interference capability of a circuit;
the electronic inductance circuit module 300 is used for providing corresponding working circuit ohmic impedance and direct-current voltage within a normal frequency range of user speaking;
a circuit protection module 400 comprising a diode for preventing leakage of the electronic inductance circuit, an RC loop for matching audio and communication impedances, and a thermistor for short-circuit protection;
the constant current source switch module 500 comprises a host constant current source switch for selecting a power supply, audio and communication impedance when the indoor unit is switched to be a host, and an extension constant current source switch for selecting a power supply, audio and communication impedance when the indoor unit is switched to be an extension;
the low-pass filter circuit module 600 is used for filtering out video signals received by the indoor unit;
the current detection circuit module 700 is used for detecting the power supply current of the two-wire BUS module of the host;
a main branch switching module 800 including a double-pole double-throw switch for switching the indoor unit into a main branch and an extension branch;
the extension power supply circuit module 900 is used for providing a non-polar input power supply for the audio and communication buses of the extension by the host through the rectifier bridge and enabling the audio and communication buses to be in interactive connection with the two-wire BUS;
the detection module 1000 is configured to automatically obtain the number and address information of the indoor unit hosts and the indoor unit extensions in real time in an inquiry manner when the device is powered on and works, and send an address conflict warning.
Specifically, as shown in fig. 2, the present embodiment further provides a circuit device for implementing a circuit control system for integrating main units and sub-units of an indoor unit, where a rectifier bridge is used to implement nonpolarity of a power supply, and a pi filter is used to improve EMC anti-interference capability of a circuit; for an electronic inductance circuit, the characteristic is similar to an inductor, the voltage drop is small for direct current, the impedance is large for alternating current, and as the normal frequency range of human speaking is 500-3000 Hz, the electronic inductance circuit has impedance larger than 1.5k ohm in the frequency band, and the direct current voltage is smaller than 3V. The first diode is used for preventing leakage current of the electronic inductance circuit from flowing backwards to a power supply, so that networking work is abnormal. The thermistor is used for short-circuit protection. The main machine constant current source switch is used for selecting a power supply and audio and communication impedances, the main machine is turned on when the main machine is used, the power supply supplies power for the door phone, meanwhile, the audio and the video are amplified through the resistance-capacitance C1 and the R1, the constant current source can ensure that the impedance of the audio and the communication to ground is large enough, and the ground parallel resistors have no influence on the audio and the communication quality when a plurality of machines are networked. A low pass filter circuit for filtering out the video signal, which in this embodiment is modulated to 11 MHz. And the current detection circuit is used for detecting the current supplied by the host computer to the two lines, and if the detected current exceeds an expected value, the two lines are powered off to play a protection role. And a power supply circuit for the extension set. The host supplies power to the audio and communication buses of the extension through rectifier bridge D3, with no polarity. The L3, L4 and C4 functions the same as a low pass filter circuit. Audio and communication are interacted with the two-wire BUS through the extension power supply circuit. The double-pole double-throw switch is used for switching the main machine and the extension machine. And the video matching circuit is used for improving the quality of the video signal. And the audio communication bus is provided with audio, a power supply and communication signals. The extension controls the switch of the constant current source, which is used for providing power, audio and communication paths, and the constant current source can ensure that the impedance of the audio and the communication to the ground is large enough, so that the parallel resistance to the ground does not influence the audio and the communication quality when a plurality of sets of networks are connected. Meanwhile, when the device is electrified to work, the software automatically acquires the number and the addresses of the hosts and the extension sets in an inquiry mode, so that address conflict is prevented, and abnormal work caused by multiple hosts or no hosts is avoided.
In a preferred embodiment, the circuit control system for integrating main units and machines of the indoor unit further includes:
the video matching circuit module is used for improving the quality of the video signal received by the equipment;
the audio and communication bus module is used for accessing an audio signal, a power supply signal and a communication signal;
the two-line BUS module is used for transmitting signals including audio signals, video signals, power supplies and communication signals by staggering the frequency of each signal;
and the PIN interface module is used for respectively connecting the power supply, the door phone and the indoor units.
In a preferred embodiment, the RC loop impedance is set to be 100-300 omega.
Specifically, a capacitor C1 and a resistor R1 in the RC loop are used for matching audio and communication impedance, the capacitor is generally set to be larger than 47uF, and the resistor is generally set to be between 100 and 300 omega.
In a preferred embodiment, the audio impedance of the electronic inductance circuit has a value range larger than 1.5k ohm impedance, and the direct current voltage is smaller than 3V.
Specifically, for an electronic inductance circuit, the characteristic is similar to an inductor, the voltage drop is small for direct current, the impedance is large for alternating current, and as the normal frequency range of human speaking is 500-3000 Hz, the electronic inductance circuit has impedance larger than 1.5k ohm in the frequency band, and the direct current voltage is smaller than 3V.
In a preferred embodiment, the current detection circuit module further includes: when the power supply current of the two-wire BUS module is detected to exceed a preset value, the current detection current module executes power-off operation to cut off the power supply of the two-wire BUS module.
In a preferred embodiment, the host constant current source switch is specifically configured to select a corresponding power supply, an audio signal, and a communication impedance after switching a current indoor unit to a host, and supply power to the indoor units in the door phone and the group network, so that the audio signal and the video signal are amplified through the RC loop, and a constant current source is used to provide a sufficiently large impedance to ground for the audio signal and the video signal.
In a preferred embodiment, the extension constant current source switch is specifically configured to connect the extension power supply circuit to provide a power supply source, an audio signal, and a communication path for the indoor unit after the current indoor unit is switched to the extension, and stop supplying power to the outdoor unit and the indoor unit extensions in the group network.
The embodiment provides a circuit control system for machine-in-one is divided to indoor set owner, includes: the device comprises a power input module, a power adjustment module, an electronic inductance circuit module, a circuit protection module, a constant current source switch module, a low-pass filter circuit module, a current detection circuit module, a main machine switching module, an extension power supply circuit module, a detection module, a video matching circuit module, an audio and communication BUS module, a two-wire BUS module and a PIN interface module. The invention can realize simple wiring through a non-polar networking technology, reduce the installation difficulty of a terminal user, unify the circuits of the main and branch devices of the indoor unit, reduce the pressure of a seller and inventory, realize the self-adaptive flexible switching effect of the main and branch devices of the indoor unit, avoid the problem of abnormal operation of the whole networking after the host is damaged, improve the flexible adjustment, adaptively detect the number of the host and the branch devices, and avoid the abnormal operation caused by a plurality of hosts or no host.
Second embodiment of the invention:
please refer to fig. 2-3.
As shown in fig. 3, the present embodiment further provides a circuit control method for integrating main units and sub-units of an indoor unit, which at least includes the following steps:
s101, directly connecting a plurality of indoor units to be connected together through 2 lines to complete networking;
s102, setting a current indoor unit as a host, controlling the host constant current source switch of the indoor unit to be switched on, and disconnecting an extension constant current source switch of the indoor unit, wherein a double-pole double-throw switch is connected to a low-pass filter circuit module in a switching manner, so that an input power supply sequentially passes through a power supply adjusting module, an electronic inductance circuit module, a circuit protection module, a host constant current source switch module, an audio and communication bus module, a low-pass filter circuit module, a main unit switching module and a video matching module, so as to supply power to the audio and communication bus modules of indoor unit extensions in a doorway unit and a networking, and complete the switching of the host of the indoor unit, and audio and communication signals of the host of the indoor unit are interacted with the doorway unit and the indoor unit extensions in the networking sequentially through the video matching module, the;
s103, setting the current indoor unit as an extension, controlling a host constant current source switch of the indoor unit to be switched off, conducting an extension constant current source switch of the indoor unit, switching and connecting a double-pole double-throw switch to an extension power supply circuit module, stopping the indoor unit from supplying power to the entrance unit and the indoor unit extensions in the network, and interacting audio and communication signals with the entrance unit and the indoor unit hosts in the network sequentially through a video matching module, a main extension switching module, the extension power supply circuit module, the extension constant current source switch and an audio and communication bus module;
and S104, automatically acquiring the number and the address information of the indoor unit host and the indoor unit extension in real time in a software inquiry mode, and sending an address conflict warning when detecting abnormal information.
Specifically, as shown in fig. 2, the indoor unit has a 4PIN interface, 2 PINs are connected to the power supply, and in addition, 2 PINs can be simultaneously connected to the door phone and other indoor units. The two-wire BUS has audio, video, power and communication signals. The signals are transmitted with a frequency offset. When the indoor unit is used as a main unit, the software control 6 is switched on, the switch 13 is switched off, the switch 10 is switched to the circuits of L1 and L2, and the power supply supplies power to the door phone and other indoor unit extension buses 12 through 1-2-3-4-5-6-12-7-10-11. When the indoor unit is used as a host, the interaction between the indoor unit and the entrance machine or the extension of the indoor unit is realized through the audio and communication signals 11-10-7-12. When the indoor unit is used as an extension set, the software control 6 is switched off, the software control 13 is switched on, the switch 10 is switched to the circuits of L3 and L4, and the indoor unit does not supply power to the door phone and other extension sets. When the indoor unit is used as an extension set, the interaction between the indoor unit and the entrance machine or the extension set of the indoor unit is realized through the audio and communication signals 11-10-9-13-12.
In a preferred embodiment, the circuit control method for integrating main units and machines of an indoor unit further includes:
s105, detecting the power supply current of the two-wire BUS module in real time, and judging whether the power supply current exceeds a preset value;
and if so, the current detection current module executes power-off operation to cut off the power supply of the two-wire BUS module.
Specifically, if the detected current exceeds an expected value, the two lines are powered off, and the circuit is protected.
The embodiment has the following beneficial effects:
the invention can realize simple wiring through a non-polar networking technology, reduce the installation difficulty of a terminal user, unify the circuits of the main and branch devices of the indoor unit, reduce the pressure of a seller and inventory, realize the self-adaptive flexible switching effect of the main and branch devices of the indoor unit, avoid the problem of abnormal operation of the whole networking after the host is damaged, improve the flexible adjustment, adaptively detect the number of the host and the branch devices, and avoid the abnormal operation caused by a plurality of hosts or no host.
An embodiment of the present invention further provides a computer-readable storage medium, which includes a stored computer program, where when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the circuit control system for indoor unit main-computer unification as described above.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the modules may be a logical division, and in actual implementation, there may be another division, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Claims (10)
1. A circuit control system for the integration of main units and machine units of an indoor unit is characterized by comprising:
the power input module is used for providing an input power supply for the circuit device integrated with the indoor unit main machine;
the power supply adjusting module comprises a rectifier bridge for realizing the nonpolarity of a power supply and a pi-type filter for improving the EMC anti-jamming capability of the circuit;
the electronic inductance circuit module is used for providing corresponding ohmic impedance and direct-current voltage of the working circuit within the normal frequency range of the speaking of the user;
the circuit protection module comprises a diode for preventing the electric leakage of the electronic inductance circuit, an RC (resistance-capacitance) loop for matching audio frequency and communication impedance and a thermistor for short-circuit protection;
the constant current source switch module comprises a host constant current source switch for selecting a power supply, audio and communication impedance when the indoor unit is switched to be a host, and an extension constant current source switch for selecting the power supply, the audio and the communication impedance when the indoor unit is switched to be an extension;
the low-pass filter circuit module is used for filtering video signals received by the indoor unit;
the current detection circuit module is used for detecting the power supply current of the two-wire BUS module of the host;
the main machine switching module comprises a double-pole double-throw switch used for switching the indoor machine into a main machine and an extension machine;
the extension power supply circuit module is used for providing a non-polar input power supply for the audio and communication buses of the extension through the rectifier bridge by the host, and enabling the audio and communication buses to be in interactive connection with the two-wire BUS;
the detection module is used for automatically acquiring the number and the address information of the indoor unit host and the indoor unit extension in real time in an inquiry mode when the equipment is powered on and works, and sending an address conflict warning;
the power supply system comprises a power supply input module, a power supply adjusting module, an electronic inductance circuit module, a circuit protection module, a constant current source switch module, a low-pass filter circuit module, a current detection circuit module, a main machine switching module and a detection module which are sequentially connected, wherein the constant current source switch module is further connected with an extension power supply circuit module, and the main machine switching module is further connected with the extension power supply circuit module.
2. The circuit control system for the integration of indoor unit main units and outdoor unit main units according to claim 1, further comprising:
the video matching circuit module is used for improving the quality of the video signal received by the equipment;
the audio and communication bus module is used for accessing an audio signal, a power supply signal and a communication signal;
the two-line BUS module is used for transmitting signals including audio signals, video signals, power supplies and communication signals by staggering the frequency of each signal;
and the PIN interface module is used for respectively connecting the power supply, the door phone and the indoor units.
3. The circuit control system for the integration of indoor units and main units as claimed in claim 1, wherein the RC loop impedance is set to 100-300 Ω.
4. The circuit control system for the integration of the main machine and the auxiliary machine of the indoor unit as claimed in claim 1, wherein the audio equivalent impedance of the electronic inductance circuit has a value range of impedance greater than 1.5k ohms, and the dc voltage is less than 3V.
5. The circuit control system for the integration of indoor unit main units and outdoor unit main units according to claim 1, wherein the current detection circuit module further comprises: when the power supply current of the two-wire BUS module is detected to exceed a preset value, the current detection circuit module executes power-off operation to cut off the power supply of the two-wire BUS module.
6. The circuit control system according to claim 1, wherein the master constant current source switch is specifically configured to select a corresponding power supply, audio signal and communication impedance after switching a current indoor unit to a master, and supply power to the outdoor unit and the indoor unit extensions in the group network, so that the audio signal and the video signal are amplified through the RC loop, and the constant current source is used to provide ground impedance for the audio signal and the communication signal.
7. The circuit control system according to claim 1, wherein the extension constant current source switch is specifically configured to connect the extension power supply circuit to provide a power supply, an audio signal, and a communication path for the indoor unit after the current indoor unit is switched to the extension, and to stop supplying power to the outdoor unit and the indoor unit extensions in the group network.
8. A circuit control method for integrating main machines and branch machines of an indoor unit is characterized by at least comprising the following steps:
directly connecting a plurality of indoor units to be connected together through 2 lines to complete networking;
the method comprises the steps that a current indoor unit is set as a host, a host constant current source switch of the indoor unit is controlled to be conducted, an extension constant current source switch of the indoor unit is disconnected, a double-pole double-throw switch is connected to a low-pass filter circuit module in a switching mode, so that an input power supply sequentially passes through a power supply adjusting module, an electronic inductance circuit module, a circuit protection module, a host constant current source switch module, an audio and communication bus module, a low-pass filter circuit module, a host switching module and a video matching module, power is supplied to audio and communication bus modules of indoor unit extensions in a doorway machine and a networking machine, switching of the indoor unit host is completed, and audio and communication signals of the indoor unit host interact with the doorway machine and indoor unit extensions in the networking machine sequentially through the video matching module, the host switching module;
setting the current indoor unit as an extension, controlling a host constant current source switch of the indoor unit to be switched off, and switching on the extension constant current source switch of the indoor unit, wherein a double-pole double-throw switch is switched and connected to an extension power supply circuit module, the indoor unit stops supplying power to the entrance unit and the indoor unit extension in the network, and audio and communication signals sequentially pass through a video matching module, a main unit switching module, an extension power supply circuit module, an extension constant current source switch and an audio and communication bus module to interact with the entrance unit and the indoor unit host in the network;
the number and address information of the indoor machine host and the indoor machine extension are automatically acquired in real time in a software inquiry mode, and when abnormal information is detected, an address conflict warning is sent out.
9. The circuit control method for the integration of the main units and the machine units of the indoor unit as claimed in claim 8, further comprising:
detecting the power supply current of the two-wire BUS module in real time, and judging whether the power supply current exceeds a preset value;
if yes, the current detection circuit module executes power-off operation to cut off power supply of the two-wire BUS module.
10. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program runs, the computer-readable storage medium controls an apparatus to execute the circuit control method for indoor unit main-computer integration according to claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799441.5A CN110504983B (en) | 2019-08-27 | 2019-08-27 | Circuit control system, method and medium for integrating main machine and machine of indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799441.5A CN110504983B (en) | 2019-08-27 | 2019-08-27 | Circuit control system, method and medium for integrating main machine and machine of indoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110504983A CN110504983A (en) | 2019-11-26 |
| CN110504983B true CN110504983B (en) | 2021-06-08 |
Family
ID=68588538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910799441.5A Active CN110504983B (en) | 2019-08-27 | 2019-08-27 | Circuit control system, method and medium for integrating main machine and machine of indoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110504983B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048615B (en) * | 2021-03-29 | 2022-04-22 | 珠海格力电器股份有限公司 | Air conditioning system, communication control method and device thereof, storage medium and processor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360263A (en) * | 2002-01-10 | 2002-07-24 | 昆明市粮油储运公司 | Bidirectional transmission method and equipment for multiple groups of measuring and controling information by two-line power supply |
| JP2004229108A (en) * | 2003-01-24 | 2004-08-12 | Aiphone Co Ltd | Display device for paging inhabitant |
| CN201207647Y (en) * | 2008-05-27 | 2009-03-11 | 青岛海科森科技有限公司 | Two-wire system non-polarity master-slave type communication transceiver |
| CN203086467U (en) * | 2012-12-29 | 2013-07-24 | 福建省冠林科技有限公司 | Four-line system indoor machine off hook detection circuit |
| US10284357B2 (en) * | 2015-11-10 | 2019-05-07 | Panasonic Intellectual Property Management Co., Ltd. | Intercom system and communication method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8744523B2 (en) * | 2010-08-02 | 2014-06-03 | At&T Intellectual Property I, L.P. | Method and system for interactive home monitoring |
| CN106060449A (en) * | 2016-07-15 | 2016-10-26 | 厦门理工学院 | Information transmission measurement and control system and method suitable for video intercom system |
| CN110087027B (en) * | 2019-04-09 | 2021-02-12 | 广西俊锦科技有限公司 | Novel security protection monitored control system |
-
2019
- 2019-08-27 CN CN201910799441.5A patent/CN110504983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360263A (en) * | 2002-01-10 | 2002-07-24 | 昆明市粮油储运公司 | Bidirectional transmission method and equipment for multiple groups of measuring and controling information by two-line power supply |
| JP2004229108A (en) * | 2003-01-24 | 2004-08-12 | Aiphone Co Ltd | Display device for paging inhabitant |
| CN201207647Y (en) * | 2008-05-27 | 2009-03-11 | 青岛海科森科技有限公司 | Two-wire system non-polarity master-slave type communication transceiver |
| CN203086467U (en) * | 2012-12-29 | 2013-07-24 | 福建省冠林科技有限公司 | Four-line system indoor machine off hook detection circuit |
| US10284357B2 (en) * | 2015-11-10 | 2019-05-07 | Panasonic Intellectual Property Management Co., Ltd. | Intercom system and communication method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110504983A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2816759B1 (en) | Power over ethernet on data pairs and spare pairs | |
| USRE44325E1 (en) | Method of providing a remote power feed to a terminal in a local area network, and corresponding remote power feed unit, concentrator, repeator, and terminal | |
| US6640308B1 (en) | System and method of powering and communicating field ethernet device for an instrumentation and control using a single pair of powered ethernet wire | |
| CN107306187B (en) | Data line power supply system with redundant power connections | |
| US10868680B2 (en) | Power over ethernet using shielded single twisted wire pair | |
| CA2836307C (en) | Systems and methods to detect bus network fault and topology | |
| CN208126373U (en) | IIC fault detection response circuit and IIC bus system | |
| US6603220B2 (en) | Terminal adapted to be powered locally and to receive a remote power feed via a link connecting it to a local area network | |
| US20060217847A1 (en) | Power sourcing unit for power over ethernet system | |
| US20140359373A1 (en) | Systems and methods to detect bus network fault and topology | |
| CN103339580A (en) | Digital rack interface pod (DRIP) with intelligent power control system and method | |
| CN103546300A (en) | Ethernet power supply method and Ethernet power supply device | |
| CN110504983B (en) | Circuit control system, method and medium for integrating main machine and machine of indoor unit | |
| EP3783834B1 (en) | Control method, power receiving device and system | |
| CN205071015U (en) | Ethernet power supply unit | |
| CN107276062A (en) | Method and device for correcting wrong wiring and electric equipment | |
| CN210431415U (en) | Circuit device for two-wire indoor unit main and machine integration | |
| US10547206B2 (en) | Fault-tolerant power network | |
| EP3783833B1 (en) | Communication device and effectiveness detection method | |
| WO2007109270A2 (en) | Device and method for provisioning or monitoring cable services | |
| CN101605285A (en) | A kind of data voice splitter that is fit to distributed use | |
| CN107872054B (en) | System and device for preventing error connection of power over Ethernet and power over cable | |
| US20230396462A1 (en) | Can interface termination control | |
| CN106714378A (en) | Lamp control system and method based on mobile terminal | |
| CN208337157U (en) | Intelligent power supply terminal for ONU equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A circuit control system, method, and medium for integrating indoor unit main and branch units Granted publication date: 20210608 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: SHENZHEN TIANDIKUANSHI INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2024980021321 |