CN111817426B - A communication loading and unloading and anti-wrong connection circuit for dual power supply controller - Google Patents
A communication loading and unloading and anti-wrong connection circuit for dual power supply controller Download PDFInfo
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- CN111817426B CN111817426B CN201910294627.5A CN201910294627A CN111817426B CN 111817426 B CN111817426 B CN 111817426B CN 201910294627 A CN201910294627 A CN 201910294627A CN 111817426 B CN111817426 B CN 111817426B
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- communication
- power supply
- resistor
- supply controller
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Optical Communication System (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
本发明涉及一种用于双电源控制器的通讯装卸与防错接电路，用以实现双电源控制器系统中通讯功能的开断和防止接线端子错接，该电路包括接线端子、指示灯模块和通讯功能模块，外部供电电源分别通过接线端子与指示灯模块和通讯功能模块连接，所述的指示灯模块包括光耦和发光二极管，所述的发光二极管的负极接地，且发光二极管的正极、第一电阻、第二电阻和发光电源依次连接，所述的光耦的开关部第一端连接到第一电阻和第二电阻之间，第二端接地，所述的外部供电电源、接线端子、第三电阻、光耦的发光部和第四电阻依次连接接地，与现有技术相比，本发明具有功耗低，使用安全可靠等优点。
The present invention relates to a communication loading and unloading and anti-wrong connection circuit for a dual power supply controller, which is used to realize the disconnection of the communication function in the dual power supply controller system and prevent the wrong connection of the wiring terminals. The circuit comprises a wiring terminal, an indicator light module and a communication function module. An external power supply is connected to the indicator light module and the communication function module respectively through the wiring terminal. The indicator light module comprises an optical coupler and a light-emitting diode. The cathode of the light-emitting diode is grounded, and the anode of the light-emitting diode, a first resistor, a second resistor and a light-emitting power supply are connected in sequence. The first end of the switch part of the optical coupler is connected between the first resistor and the second resistor, and the second end is grounded. The external power supply, the wiring terminal, the third resistor, the light-emitting part of the optical coupler and the fourth resistor are connected to the ground in sequence. Compared with the prior art, the present invention has the advantages of low power consumption, safe and reliable use, etc.
Description
Technical Field
The invention relates to the field of piezoelectric devices, in particular to a communication loading and unloading and error-proofing circuit for a dual-power controller.
Background
The dual-power controller is used for realizing automatic switching between a common power supply and a standby power supply, is mainly used in important occasions requiring that power cannot be interrupted, is extremely important for certain special user departments, such as hospitals, airports and the like, ensures that equipment normally operates under the condition of normal power supply, and is widely applied to occasions incapable of power failure, such as high-rise buildings, post and telecommunications, coal mines, military facilities, large-scale industries, power grids, fire protection, hospitals, subways and the like.
Most of the existing dual-power controllers have a communication function, but the communication function is not used in every occasion. This results in a waste of system power consumption, as the communication chip is still in operation when the communication function is not being used. In addition, the field wiring personnel can be neglected after all, and once the wiring sequence of the wiring terminals is not carelessly connected in error, the data acquisition is not carried out, and the controller is likely to be damaged after the power is applied for a long time if the data acquisition is carried out repeatedly, so that great consequences are caused.
Disclosure of Invention
The present invention is directed to a communication loading/unloading and error proofing circuit for dual power controllers, which overcomes the above-mentioned drawbacks of the prior art.
The aim of the invention can be achieved by the following technical scheme:
A communication loading and unloading and error proofing circuit for dual supply controller is arranged in realizing the disconnection of communication function and preventing binding post misconnection in the dual supply controller system, and this circuit includes binding post, pilot lamp module and communication function module, and external power supply passes through binding post respectively and is connected with pilot lamp module and communication function module, the pilot lamp module include opto-coupler and emitting diode, emitting diode's negative pole ground, and emitting diode's positive pole, first resistance, second resistance and luminous power connect gradually, the switching part first end of opto-coupler connect to between first resistance and the second resistance, the second ground connection, external power supply, binding post, third resistance, opto-coupler's luminous portion and fourth resistance connect gradually the ground connection.
The communication function module comprises a communication chip connected with the main control chip, and a Vcc pin of the communication chip is connected with the wiring terminal.
The model of the communication chip is SN65HVD1782.
And a first capacitor is further arranged between the first end and the first end of the optocoupler switch part.
The Vcc pin of the communication chip is grounded through a second capacitor.
The pin B of the communication chip is connected with the TXD1-B port of the main control chip, the pin A is connected with the RXD1-A port of the main control chip, the pin D is connected with the TXD1 port of the main control chip,And the R pin is connected with the RXD1 port of the main control chip.
When the communication function of the dual-power controller or the wiring terminal wiring error is not needed, the communication chip is powered off, the optical coupler is powered off, and the light emitting diode is lightened to indicate abnormal communication and wiring error.
Compared with the prior art, the invention has the following advantages:
1) The power consumption is low, when the communication function is not used, the connecting terminal is not connected, the communication chip is not connected with a power supply, the communication is not carried out, and the overall power consumption of the circuit when the communication is not carried out is reduced.
2) The use is safe and reliable, and the condition that equipment is damaged due to wiring personnel wiring errors is avoided while the circuit power consumption of the whole circuit is reduced when no communication exists. Once the wiring personnel misconnect the power line, the power-off inspection can be rapidly performed through the alarm indication sent by the light emitting diode and the communication chip.
Drawings
FIG. 1 is a circuit diagram of an indicator light module;
FIG. 2 is a circuit diagram of a communication function module;
fig. 3 is a circuit diagram of the connection terminal.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
The invention provides a communication loading and unloading and error connection preventing circuit for a dual-power controller, which is used for loading and unloading communication functions of the dual-power controller and preventing wiring errors and comprises a wiring terminal JP5, an indicator lamp module and a communication function module.
Fig. 1 is a circuit diagram of an indicator light module, the indicator light module includes an optocoupler U14 and a light emitting diode D5, a negative electrode of the light emitting diode D5 is grounded, and an anode of the light emitting diode D5, a first resistor R84, a second resistor R80 and a light emitting power source VCC2 are sequentially connected, a first end of a switch portion of the optocoupler U14 is connected between the first resistor R84 and the second resistor R80, a second end of the switch portion of the optocoupler U14 is grounded, a first pin of a connection terminal JP5, a third resistor R85, a light emitting portion of the optocoupler U14 and a fourth resistor R83 are sequentially connected to ground, and a first capacitor C48 is disposed between the first end and the second end of the switch portion of the optocoupler U14.
Fig. 2 is a circuit diagram of a communication function module, the communication function module includes a communication chip U4 connected to a master control chip, in this example, the communication chip is selected to be SN65HVD1782, a Vcc pin P8 of the communication chip is connected to a first pin of a connection terminal JP5, a GND pin P5 is grounded, a Vcc pin P8 of the communication chip U4 is also grounded through a second capacitor C19, a B pin P7 of the communication chip U4 is connected to a TXD1-B port of the master control chip, an a pin P6 is connected to a RXD1-a port of the master control chip, a D pin P4 is connected to a TXD1 port of the master control chip,The pin P2 and the DE pin P3 are connected with each other and then connected with an RE/DE port of the main control chip, and the R pin P1 is connected with an RXD1 port of the main control chip.
When the communication function or the connection error of the dual-power controller is needed to be closed, the connection terminal JP5 is disconnected from the external power supply VCC1, the communication function is closed, the optical coupler U14 cannot be turned on, and the light emitting diode D5 is lightened to display abnormality.
Fig. 3 is a circuit diagram of a connection terminal, and the indicator lamp module and the communication function module are respectively connected with an external power supply VCC1 through the connection terminal.
According to the invention, the communication chip U4 is connected with the external power supply VCC1 through the wiring of the wiring terminal JP5, so that the communication function is realized, and once the wiring of the wiring terminal JP5 is wrong, the LED D5 lights up and displays an abnormal signal to prompt and alarm. When the communication function is not used, the connection terminal JP5 is not connected, the communication chip U4 is not connected with a power supply and cannot communicate, and the overall power consumption of the circuit is reduced when no communication is performed.
The invention has the advantages of being more intelligent, reducing the power consumption of the whole circuit when no communication exists, and avoiding the condition that the equipment is damaged due to the wiring error of wiring personnel. Once the wiring personnel misconnect the power line, the power-off inspection can be performed rapidly through the information displayed by the light emitting diode D5 and the alarm indication sent by the communication chip U4.
The auxiliary power supply error connection prevention circuit is used in a dual power supply controller system. When the customer needs to use the communication function, the field engineer accesses the connection terminal JP5, and the power supply VCC1 supplies power to the communication chip U4, the communication chip U4 works, the LED D5 indicates normal, and the LED is displayed as off, so that the communication function can be used. If the on-site staff connects the wiring terminal JP5 with wrong line sequence, namely the power supply VCC1 is not correctly connected, after power-on, the communication chip U4 can not normally supply power and can not normally communicate, and simultaneously the optocoupler U14 can not be conducted, so that the LED D5 indicates abnormality, displays as bright, and the operator adopts power-off inspection for the first time.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294627.5A CN111817426B (en) | 2019-04-12 | 2019-04-12 | A communication loading and unloading and anti-wrong connection circuit for dual power supply controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294627.5A CN111817426B (en) | 2019-04-12 | 2019-04-12 | A communication loading and unloading and anti-wrong connection circuit for dual power supply controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111817426A CN111817426A (en) | 2020-10-23 |
| CN111817426B true CN111817426B (en) | 2025-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910294627.5A Active CN111817426B (en) | 2019-04-12 | 2019-04-12 | A communication loading and unloading and anti-wrong connection circuit for dual power supply controller |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972768A (en) * | 2016-05-26 | 2016-09-28 | 广东美的制冷设备有限公司 | Electric current loop communication control circuit and method of air conditioner |
| CN209844634U (en) * | 2019-04-12 | 2019-12-24 | 上海亿盟电气自动化技术有限公司 | Communication loading and unloading and wrong connection preventing circuit for double-power-supply controller |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11313436A (en) * | 1998-04-27 | 1999-11-09 | Diamond Electric Mfg Co Ltd | Protection method at the erroneous misconnection in serial communication |
| CN2877101Y (en) * | 2005-12-20 | 2007-03-07 | 上海益而益电器制造有限公司 | Control circuit with displaying functions of preventing reverse connecting error and state |
| CN203826017U (en) * | 2014-05-06 | 2014-09-10 | 福建宁德核电有限公司 | Wire connecting and disconnecting simulator |
| CN208461455U (en) * | 2018-08-23 | 2019-02-01 | 奥克斯空调股份有限公司 | A kind of current foldback circuit, communication device and air conditioner |
-
2019
- 2019-04-12 CN CN201910294627.5A patent/CN111817426B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972768A (en) * | 2016-05-26 | 2016-09-28 | 广东美的制冷设备有限公司 | Electric current loop communication control circuit and method of air conditioner |
| CN209844634U (en) * | 2019-04-12 | 2019-12-24 | 上海亿盟电气自动化技术有限公司 | Communication loading and unloading and wrong connection preventing circuit for double-power-supply controller |
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| CN111817426A (en) | 2020-10-23 |
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