CN211063059U - Laboratory power supply and load monitoring system - Google Patents
Laboratory power supply and load monitoring system Download PDFInfo
- Publication number
- CN211063059U CN211063059U CN201922082166.3U CN201922082166U CN211063059U CN 211063059 U CN211063059 U CN 211063059U CN 201922082166 U CN201922082166 U CN 201922082166U CN 211063059 U CN211063059 U CN 211063059U
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- power supply
- module
- controller
- power
- laboratory
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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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The utility model provides a laboratory power supply and load monitored control system sets up in the switch board in every laboratory, include: an electrical circuit and a control circuit, wherein the electrical circuit comprises: a power supply loop and a remote control loop; the power supply loop takes an air switch as a main brake and is connected to the bus through the fuse; the remote control loop comprises a first power supply module and a relay coil, wherein the first power supply module is used for supplying power to the relay coil, and the power supply of the relay coil is controlled by a control signal output by a GPIO pin of the controller; the control circuit includes: the device comprises a second power supply module, a signal conversion module, a relay driving module, a key module, a labor pull wireless module and a controller. Through the utility model discloses a laboratory power and load monitored control system can reliably go up the electricity or cut off the power supply to the laboratory load through the manual work, also can reliably cut off the power supply through long-range realization.
Description
Technical Field
The utility model relates to an electrical control technical field, in particular to laboratory power supply and load monitoring system.
Background
Along with the high-speed development of education causes, teachers and students are growing continuously, schools are large in scale, and the level and the number of all facilities are greatly improved. The improvement of colleges and universities' laboratory hardware level also brings huge challenge for traditional laboratory management mode, and the confession distribution problem in laboratory becomes especially important, and according to the investigation, the switch board function singleness on the market at present, most power distribution cabinet of supplying power all use knife switch, air switch to go up the electricity, cut off the power supply, and the operation is hard and risky, and degree of automation is low moreover, can not realize automatic control. Moreover, at present, the unified management of equipment networking cannot be achieved for laboratories in the whole building.
How to improve the existing laboratory management scheme and realize automatic monitoring on a laboratory power supply and a load is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an open laboratory power and load monitored control system has solved the problem that laboratory power and load management degree of automation is low among the prior art.
The technical scheme of the utility model is realized like this:
the utility model provides a laboratory power and load monitoring system, sets up in the switch board in every laboratory, includes: an electrical circuit and a control circuit, wherein,
the electric circuit includes: a power supply loop and a remote control loop; the power supply loop takes an air switch as a main brake, is connected to the bus through a fuse, detects current and voltage information on the bus through a current transformer and a voltage detection end of an ammeter, and the ammeter acquires the current and voltage information of the bus; the bus is a three-phase power supply, one phase is led out to serve as a control power supply, and a normally closed contact of the power-off button, a normally closed contact of the relay and a normally open contact of the power-on button are connected between the control power supply and a zero line through a contactor coil; the remote control loop comprises a first power supply module and a relay coil, wherein the first power supply module is used for supplying power to the relay coil, and the power supply of the relay coil is controlled by a control signal output by a GPIO pin of the controller;
the control circuit includes: the second power supply module, the signal conversion module, the relay driving module, the key module, the labor pull wireless module and the controller; wherein the content of the first and second substances,
the second power supply module converts the voltage output by the first power supply module into working voltage of each module of the control circuit;
the signal conversion module converts the signal level of the electric meter into a level form which can be received by the controller;
the relay driving module consists of a field effect transistor and a photoelectric coupler and amplifies a control signal output by a GPIO pin of the controller to control the action of a relay coil;
the key module is connected to the input pin of the controller and inputs manual instructions to the controller;
and the labor pulling wireless module is connected with an output pin of the controller, and communication between the controller and the labor pulling gateway is established.
Optionally, the signal level of the electric meter is in a 485 form, and the signal conversion module converts the 485 form level of the electric meter into a level form capable of being received by the controller.
Optionally, the first power module is a 220V to 24V voltage converter.
The utility model has the advantages that:
(1) manual control of the laboratory power supply can be realized;
(2) the remote control of the laboratory power supply can be realized, and the control is reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a circuit diagram of a power supply loop of a laboratory power supply and load monitoring system according to the present invention;
fig. 2 is a circuit diagram of a remote control loop of a laboratory power supply and load monitoring system according to the present invention;
fig. 3 is a schematic diagram of a control circuit of the laboratory power supply and load monitoring system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a laboratory power and load monitoring system, this system set up in the switch board in every laboratory, include: an electrical circuit and a control circuit.
The electric circuit comprises a power supply circuit and a remote control circuit, wherein as shown in fig. 1, the power supply circuit takes an air switch QS1 as a main brake, is connected into a bus through a fuse FU1, detects current and voltage information on the bus through a current transformer (TC1, TC2, TC3) and a voltage detection end of an electric meter KWh1, and collects the current and voltage information, the electric meter adopts an existing intelligent electric meter, has the functions of detecting voltage, current and total power consumption, and can transmit the detected information through a 485 bus, the bus is a three-phase power supply (L, L, L3), one phase is led out as a control power supply, a normally closed contact SB0 of a power-off button, a normally closed contact KA01 of a relay and a normally open contact SB1 of a power-on button are connected between the control power supply and a normally closed neutral through a contactor KM1, namely a contact SB0 of the power-off button, a contact 01 of the relay, an SB1 of the normally closed contact SB of the power-on button, a coil KM1 of the control power supply and a three-on button are connected between the zero line, a three-phase power supply switch (KM) and a three-phase load (KM) switch) 863.
As shown in fig. 2, the remote control loop comprises a first power module Pow and a coil KA02 of the relay for remote power off, the relay comprises a normally closed contact KA01 and a coil KA02, the first power module Pow is used for supplying power to the relay coil KA02, and the power supply of the relay coil KA02 is controlled by an output signal of a GPIO pin of the controller 10. Alternatively, as shown in fig. 2, a positive voltage terminal of the output voltage of the first power module Pow is connected to the relay coil KA02 through a switching tube T1, the other end of the relay coil KA02 is connected to a negative voltage terminal of the output voltage of the first power module Pow, a diode D1 is connected in anti-parallel between the positive voltage terminal and the negative voltage terminal of the relay coil KA02, i.e., an anode of a diode D1 is connected to the negative voltage terminal of the relay coil KA02, and a cathode of a diode D1 is connected to the positive voltage terminal of the relay coil KA 02. Optionally, the switch tube T1 is a triode, the collector of which is connected to the positive voltage terminal of the first power module Pow, the emitter of which is connected to the positive voltage terminal of the relay coil KA02, and the gate of which is connected directly or indirectly to the GPIO pin of the controller through a resistor R (with a resistance value of 1K Ω), and the controller controls the switch tube T1 to turn on or off. Optionally, the diode D1 is a 1N4007 diode.
As shown in FIG. 3, the control circuit comprises a second power module 2, a signal conversion module 3, a relay drive module 4, a key module 1, a wireless Laura module 5 and a controller 10, wherein the second power module 2 converts the voltage output by the first power module Pow into the working voltage of each module of the control circuit, optionally, the first power module is a 220V to 24V voltage converter, the second power module converts the 24V voltage into the working voltage of each module of the control circuit, the signal conversion module 3 converts the signal level of the KWh1 into the level form which can be received by the controller 10, optionally, the signal level of the KWh1 is 485 form, the signal conversion module 3 converts the 485 form level of the electric meter into the level form which can be received by the controller 10, for example, the controller 10 can receive TT L form level, the signal conversion module 3 is TT/L level conversion circuit, a coil of the relay 0 is arranged in the electric circuit, the relay drive module 4 is arranged in the control circuit, the field effect transistor and the relay drive module 4 is formed by a field effect transistor and a photoelectric coupler, the relay drive module 4 is connected with the control pin of the wireless Laura module 10, and the relay drive module 10 is connected with the wireless Laura module 10 to the control input and the control module 10 to establish the communication degree of the wireless Laura module 10.
In the normal use process, air switch QS1 is the closed state all the time, the break-make of three-phase power supply (L1, L2, L3) is controlled by the main contact KM11 of contactor, when the user pushes down the power-on button, the normally open contact SB1 of power-on button is closed, contactor coil KM1 gets electricity, the actuation of the auxiliary contact of contactor forms the auto-lock, the power-on is successful on the actuation of main contact KM11, normally open contact SB1 keeps the normally open state, when the user pushes down the power-off button, the normally closed contact SB0 of power-off button breaks off, the contactor coil loses electricity, the auto-lock of auxiliary contact disconnection disappears, main contact KM11 breaks off, the power-off is successful, normally closed contact SB0 keeps the normally closed state, therefore, through the utility model discloses a laboratory power supply and load monitoring system, can reliably carry out.
When the user remotely executes the power-off operation, the pin of the controller GPIO shows that the control signal controls the switch tube T1 to be switched on, the relay coil KA02 is electrified, the relay coil acts to cause the normally closed contact KA01 to be switched off, the contactor coil KM1 is further electrified, the contactor main contact KM11 is switched off, and the power-off operation is successful. Therefore, through the utility model discloses a laboratory power and load monitored control system can reliably cut off the power supply to the laboratory load through remote control.
Optionally, the key module 1 includes a reset key, the reset key is connected to the controller reset pin, and when the reset key is pressed, the controller is restarted.
Optionally, the key module 1 includes a test key, the test key is connected to a controller test interrupt pin, and the controller reads voltage and current data of the electric meter and sends the data to the pull gateway through the pull wireless module to check whether communication is normal.
Optionally, as shown in fig. 1, the power supply circuit further includes an indicator lamp 1 and an indicator lamp 2, the indicator lamp 1 is connected in series between the control power supply and the zero line, and is used for indicating the working condition of the laboratory power supply system, and it lights up to indicate that the laboratory power supply is normal, and it lights out to indicate that the laboratory power supply is disconnected. The indicator lamp 2 is connected in parallel at two ends of the contactor coil KM1 and is used for indicating the working state of the contactor coil KM1, when the contactor coil KM1 is electrified, the indicator lamp 2 is turned on, and when the contactor coil KM1 is powered off, the indicator lamp 2 is turned off.
The present invention does not relate to the improvement of the control program, and the controller adopts the existing known program to realize the control process.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a laboratory power and load monitored control system which characterized in that sets up in the switch board in every laboratory, includes: an electrical circuit and a control circuit, wherein,
the electric circuit includes: a power supply loop and a remote control loop; the power supply loop takes an air switch as a main brake, is connected to the bus through a fuse, detects current and voltage information on the bus through a current transformer and a voltage detection end of an ammeter, and the ammeter acquires the current and voltage information of the bus; the bus is a three-phase power supply, one phase is led out to serve as a control power supply, and a normally closed contact of the power-off button, a normally closed contact of the relay and a normally open contact of the power-on button are connected between the control power supply and a zero line through a contactor coil; the remote control loop comprises a first power supply module and a relay coil, wherein the first power supply module is used for supplying power to the relay coil, and the power supply of the relay coil is controlled by a control signal output by a GPIO pin of the controller;
the control circuit includes: the second power supply module, the signal conversion module, the relay driving module, the key module, the labor pull wireless module and the controller; wherein the content of the first and second substances,
the second power supply module converts the voltage output by the first power supply module into working voltage of each module of the control circuit;
the signal conversion module converts the signal level of the electric meter into a level form which can be received by the controller;
the relay driving module consists of a field effect transistor and a photoelectric coupler and amplifies a control signal output by a GPIO pin of the controller to control the action of a relay coil;
the key module is connected to the input pin of the controller and inputs manual instructions to the controller;
and the labor pulling wireless module is connected with an output pin of the controller, and communication between the controller and the labor pulling gateway is established.
2. The laboratory power and load monitoring system according to claim 1,
the signal level of ammeter is the 485 forms, and signal conversion module converts the 485 forms level of ammeter into the level form that the controller can receive.
3. The laboratory power and load monitoring system according to claim 1,
the first power supply module is a 220V-to-24V voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082166.3U CN211063059U (en) | 2019-11-28 | 2019-11-28 | Laboratory power supply and load monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082166.3U CN211063059U (en) | 2019-11-28 | 2019-11-28 | Laboratory power supply and load monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211063059U true CN211063059U (en) | 2020-07-21 |
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ID=71595160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922082166.3U Expired - Fee Related CN211063059U (en) | 2019-11-28 | 2019-11-28 | Laboratory power supply and load monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211063059U (en) |
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2019
- 2019-11-28 CN CN201922082166.3U patent/CN211063059U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 Termination date: 20201128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |