CN209859874U - Photoelectric centralized controller - Google Patents
Photoelectric centralized controller Download PDFInfo
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- CN209859874U CN209859874U CN201920566014.8U CN201920566014U CN209859874U CN 209859874 U CN209859874 U CN 209859874U CN 201920566014 U CN201920566014 U CN 201920566014U CN 209859874 U CN209859874 U CN 209859874U
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- voltage comparator
- relay
- electrically connected
- output end
- current sensor
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Abstract
The utility model relates to a photoelectricity centralized control ware, include: the relay sends the working state of the relay to the control module; a current sensor for detecting a current to be output from the relay; a voltage comparison circuit comprising: the first voltage comparator is used for outputting a state signal when the relay is switched on, and the output end of the first voltage comparator is electrically connected to the LED state display circuit; and the output end of the second voltage comparator is electrically connected to the buzzer alarm circuit. The utility model discloses a to the operating condition and the operating current real time monitoring of relay, provide convenience to the control of user and control module to the relay. The utility model discloses a hall current sensor and dual voltage comparator have realized that current detection and electric current overload report to the police, and the principle is simple, and the cost of manufacture is low.
Description
Technical Field
The utility model relates to a relay control technical field especially relates to a photoelectricity centralized control ware.
Background
The existing light-operated relay can only realize basic on-off control, has single function, and can not clearly determine the working state of each relay when being used by a user, thereby bringing inconvenience to the control of the relay and the use of the user; the light-operated relay also can not carry out real-time supervision and warning to the electric current overload situation, when the circuit broke down, can not in time discover, caused the damage of circuit and components and parts, led to the fact economic loss for the user, for solving above-mentioned drawback, researched and developed the photoelectricity centralized control ware.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a photoelectricity centralized control ware is provided.
In order to solve the technical problem, the technical scheme of the utility model is that: an optoelectronic centralized controller, comprising: the number of the relays is one or more;
the relay comprises a relay coil and two contacts which are formed by a moving contact, a first fixed contact and a second fixed contact and used for representing the working state of the relay;
the first static contact and the second static contact are respectively connected to a first state input end and a second state input end of the control module;
further comprising:
the moving contact is connected to the input end of the current sensor, the current of the relay in different working states is input into the current sensor for detection, and the output end of the current sensor outputs induced current;
a voltage comparison circuit comprising:
the first voltage comparator is used for outputting a state signal when the relay is switched on, the output end of the current sensor is electrically connected to the non-inverting input end of the first voltage comparator, the inverting input end of the first voltage comparator is connected with a first reference voltage input circuit, and the output end of the first voltage comparator is electrically connected to the LED state display circuit;
the output end of the current sensor is electrically connected to the non-inverting input end of the second voltage comparator, the inverting input end of the second voltage comparator is connected with a second reference voltage input circuit, and the output end of the second voltage comparator is electrically connected to a buzzer alarm circuit.
As a preferred technical solution, the state display circuit includes a first triode for signal amplification, an output terminal of the first voltage comparator is electrically connected to a base of the first triode, and a collector of the first triode is electrically connected to an LED lamp for state display.
As a preferred technical scheme, each relay corresponds to one state display circuit.
As a preferable technical scheme, the buzzer alarm circuit comprises a second triode, the output end of the second voltage comparator is electrically connected with the base electrode of the second triode, and the collector electrode of the second triode is electrically connected with the buzzer.
As a preferable technical solution, the output ends of the second voltage comparators corresponding to the plurality of relays are connected in parallel to the base of the second triode.
As a preferred solution, the current sensor is a hall current sensor ACS 712.
Preferably, the voltage comparator chip corresponding to the first voltage comparator and the second voltage comparator is a dual voltage comparator chip LM 393.
As a preferred technical solution, the output end of the second voltage comparator is further electrically connected to an overload alarm input end of the control module.
As a preferable technical scheme, the control module is a single chip microcomputer 80C 52.
Since the technical scheme is used, the beneficial effects of the utility model are that: the utility model discloses a current sensor real-time detection circuit shows the operating condition of relay through the state display circuit, and whether overload through voltage comparison circuit detection electric current, when the electric current transships, start bee calling organ warning circuit and send control module, realized the operating condition and the operating current real time monitoring to the relay, provide convenience to user and control module to the control of relay.
The utility model realizes current detection and current overload alarm through the Hall current sensor and the double voltage comparator, and has simple principle and low manufacturing cost; the control of a plurality of relays is realized through the single chip microcomputer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of a current sensor according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a voltage comparison circuit according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a status display circuit according to an embodiment of the present invention;
fig. 5 is a circuit diagram of a buzzer alarm circuit of the embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 5, a photo-electric centralized controller includes: the number of the relays is one or more.
In this embodiment, the control module is a single chip microcomputer 80C52, and after receiving the light control signal, the single chip microcomputer drives the relay driving circuit to electrify the relay coil, and the contact of the relay coil acts, and the single chip microcomputer is connected with the nixie tube driving circuit, displays the serial number of the relay when the relay works, and is also connected with the LED tact switch, so that the on-off of the relay can be manually controlled.
The relay comprises a relay coil and two contacts which are formed by a moving contact and a first fixed contact and a second fixed contact respectively and used for representing the working state of the relay, wherein the first fixed contact and the second fixed contact are connected to a first state input end and a second state input end of the control module respectively and used for sending the working state of the relay to the single chip microcomputer.
The moving contact is connected to the input end of the current sensor, the current of the relay in different working states is input into the current sensor for detection, and the output end of the current sensor outputs induced current; in the present embodiment, the current sensor is a hall current sensor ACS 712.
A voltage comparison circuit comprising:
the first voltage comparator is used for outputting a state signal when the relays are switched on, the output end of the current sensor is electrically connected to the non-inverting input end of the first voltage comparator, the inverting input end of the first voltage comparator is connected with a first reference voltage input circuit, the output end of the first voltage comparator is electrically connected to the LED state display circuit, and each relay corresponds to one state display circuit.
And the output end of the second voltage comparator is electrically connected to the non-inverting input end of the second voltage comparator, the inverting input end of the second voltage comparator is connected with a second reference voltage input circuit, and the output end of the second voltage comparator is electrically connected to the buzzer alarm circuit. The output ends of the second voltage comparators corresponding to the relays are connected to the base electrode of the second triode in parallel.
The voltage comparator chips corresponding to the first voltage comparator and the second voltage comparator are dual voltage comparator chips LM393, and the first voltage comparator and the second voltage comparator respectively correspond to the voltage comparator 1 and the voltage comparator 2 of the LM 393.
The state display circuit comprises a first triode for amplifying signals, the output end of the first voltage comparator is electrically connected with the base electrode of the first triode, and the collector electrode of the first triode is electrically connected with an LED lamp for displaying states.
The buzzer alarm circuit comprises a second triode, the output end of the second voltage comparator is electrically connected with the base electrode of the second triode, and the collector electrode of the second triode is electrically connected with a buzzer.
The output end of the second voltage comparator is also electrically connected to the overload alarm input end of the control module.
As shown in fig. 2, taking the relay JD1 as an example to illustrate the working principle of the state detection circuit, when the coil of the relay JD1 is powered on, K1 is turned on, the first stationary contact DZ11 and the second stationary contact DZ12 are connected to the single chip microcomputer, the movable contact is connected to the input end of the current sensor ACS712, i.e. pin 3 and pin 4, the detection current is output from pin 1 and pin 2 of the ACS712, the output end pin 7 of the ACS712 outputs the induced current to pin 3 and pin 5 of the LM393, i.e. the non-inverting input ends of the first voltage comparator and the second voltage comparator, a first reference voltage input circuit composed of three resistors with resistance values of 470K Ω, 10K Ω and 10K Ω is connected between the inverting input end pin 2 and the GND end pin 4 of the first voltage comparator, a first reference voltage is input to the inverting input end pin 2, and when the relay JD1 is turned on, if the voltage value input to the non-inverting input end of the first voltage comparator, i.e. pin 3, the output terminal of the first voltage comparator, i.e. pin 1, outputs a high level, the driving state display circuit is turned on, the led D17 emits light, and the working state of the relay JD1 is displayed, otherwise, the output terminal of the first voltage comparator, i.e. pin 1, outputs a low level, and the led D17 does not emit light.
The inverting input terminal pin 6 and the GND end of the second voltage comparator are connected with a first reference voltage input circuit which is composed of 2 resistors R79 and R88 with resistance values of 5.1k omega and 20k omega respectively, a second reference voltage is input into the inverting input terminal pin 6, when the relay JD1 is switched on, if the voltage value input into the non-inverting input terminal pin 5 of the second voltage comparator is greater than the second reference voltage, the output terminal pin 7 of the second voltage comparator outputs a high level to drive the buzzer alarm circuit to be switched on, the buzzer LS1 buzzes, meanwhile, the output terminal pin 7 of the second voltage comparator sends an overload alarm signal to the single chip microcomputer, otherwise, the output terminal pin 7 of the second voltage comparator outputs a high level, and the buzzer LS1 is not started.
The utility model discloses in, charactron drive circuit, LED dabs switch and relay drive circuit all are ripe prior art, consequently no longer give unnecessary details to its circuit structure and relation of connection etc. one by one.
The utility model discloses in, singlechip, current sensor, voltage comparator do not confine the model that records in this application, among the prior art, singlechip, current sensor and voltage comparator that can realize above function all are applicable to the utility model discloses, and fall within the protection scope of the utility model.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An optoelectronic centralized controller, comprising: the number of the relays is one or more;
the relay comprises a relay coil and two contacts which are respectively composed of a moving contact, a first fixed contact and a second fixed contact and used for representing the working state of the relay, and is characterized in that:
the first static contact and the second static contact are respectively connected to a first state input end and a second state input end of the control module;
further comprising:
the moving contact is connected to the input end of the current sensor, the current of the relay in different working states is input into the current sensor for detection, and the output end of the current sensor outputs induced current;
a voltage comparison circuit comprising:
the first voltage comparator is used for outputting a state signal when the relay is switched on, the output end of the current sensor is electrically connected to the non-inverting input end of the first voltage comparator, the inverting input end of the first voltage comparator is connected with a first reference voltage input circuit, and the output end of the first voltage comparator is electrically connected to the LED state display circuit;
the output end of the current sensor is electrically connected to the non-inverting input end of the second voltage comparator, the inverting input end of the second voltage comparator is connected with a second reference voltage input circuit, and the output end of the second voltage comparator is electrically connected to a buzzer alarm circuit.
2. The optoelectronic centralized controller of claim 1, wherein: the state display circuit comprises a first triode for amplifying signals, the output end of the first voltage comparator is electrically connected with the base electrode of the first triode, and the collector electrode of the first triode is electrically connected with an LED lamp for displaying states.
3. A photo-voltaic centralized controller according to claim 2, wherein: each relay corresponds to a status display circuit.
4. The optoelectronic centralized controller of claim 1, wherein: the buzzer alarm circuit comprises a second triode, the output end of the second voltage comparator is electrically connected with the base electrode of the second triode, and the collector electrode of the second triode is electrically connected with a buzzer.
5. The optoelectronic centralized controller of claim 4, wherein: and the output ends of the second voltage comparators corresponding to the relays are connected to the base electrode of the second triode in parallel.
6. The optoelectronic centralized controller of claim 1, wherein: the current sensor is a hall current sensor ACS 712.
7. The optoelectronic centralized controller of claim 1, wherein: the voltage comparator chips corresponding to the first voltage comparator and the second voltage comparator are dual-voltage comparator chips LM 393.
8. The optoelectronic centralized controller of claim 1, wherein: the output end of the second voltage comparator is also electrically connected to the overload alarm input end of the control module.
9. A photovoltaic centralized controller as claimed in any one of claims 1 to 8, wherein: the control module is a single chip microcomputer 80C 52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920566014.8U CN209859874U (en) | 2019-04-24 | 2019-04-24 | Photoelectric centralized controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920566014.8U CN209859874U (en) | 2019-04-24 | 2019-04-24 | Photoelectric centralized controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209859874U true CN209859874U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920566014.8U Expired - Fee Related CN209859874U (en) | 2019-04-24 | 2019-04-24 | Photoelectric centralized controller |
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| Country | Link |
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| CN (1) | CN209859874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739477A (en) * | 2020-06-30 | 2020-10-02 | 昆山龙腾光电股份有限公司 | Dimming circuit and display device |
-
2019
- 2019-04-24 CN CN201920566014.8U patent/CN209859874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739477A (en) * | 2020-06-30 | 2020-10-02 | 昆山龙腾光电股份有限公司 | Dimming circuit and display device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20200424 |