CN111432536B - Signal processing system for energy-saving lighting device - Google Patents
Signal processing system for energy-saving lighting device Download PDFInfo
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- CN111432536B CN111432536B CN202010178432.7A CN202010178432A CN111432536B CN 111432536 B CN111432536 B CN 111432536B CN 202010178432 A CN202010178432 A CN 202010178432A CN 111432536 B CN111432536 B CN 111432536B
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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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a signal processing system for an energy-saving lighting device, which is characterized by comprising a triode VT1, a triode VT2, a triode VT3, a front-end noise reduction circuit, a resistor R7, one end of which is connected with the base of the triode VT1, the other end of which is connected with the collector of the triode VT3, a resistor R8, one end of which is connected with the base of the triode VT and the other end of which is connected with the collector of a triode VT3, a diode D4, the P pole of which is connected with the base of the triode VT3 and the N pole of which is connected with the emitter of the triode VT3, a resistor R9 and the like, wherein the resistor R9 is connected with a diode D4 in parallel. The invention can perform noise reduction processing on the input detection signal, improve the fidelity of the signal, and simultaneously perform undistorted amplification on the signal so as to facilitate subsequent equipment to identify the signal and improve the stability of the lighting device.
Description
Technical Field
The invention relates to the field of energy-saving illumination, in particular to a signal processing system for an energy-saving illumination device.
Background
With the continuous development of science and technology and the continuous progress of society, people's energy-saving consciousness is higher and higher, and intelligent lighting device such as street lamp is set up in many places at present, and it can light when vehicle or pedestrian pass through, and then can extinguish automatically when vehicle or pedestrian pass through, and it can practice thrift a large amount of electric energy. However, the conventional intelligent street lamp has low stability, and cannot meet the requirement if a vehicle passes through the street lamp at a high speed.
Disclosure of Invention
The present invention is directed to solving the above problems and providing a signal processing system for an energy saving lighting device.
The purpose of the invention is realized by the following technical scheme: a signal processing system for an energy-saving lighting device comprises a triode VT1, a triode VT2, a triode VT3, a front noise reduction circuit, a resistor R7 with one end connected with the base of the triode VT1 and the other end connected with the collector of the triode VT3, a resistor R8 with one end connected with the base of the triode VT and the other end connected with the collector of the triode VT3, a diode D4 with a P pole connected with the base of the triode VT3 and an N pole connected with the emitter of the triode VT3, a resistor R9 connected with the diode D4 in parallel, an auxiliary switch circuit connected with the emitter of the triode VT2, a buffer circuit connected with the auxiliary switch circuit, a feedback link connected with the buffer circuit, a N pole connected with the base of the triode VT3 through a capacitor C5, a P pole connected with the front noise reduction circuit through the resistor R4, a diode D3 connected with the front noise reduction circuit, and a voltage stabilizing source circuit connected with the front noise reduction circuit, and a gain circuit connected to the regulated power supply circuit; the gain circuit is also connected to the feedback link.
Furthermore, the front-end noise reduction circuit comprises a P pole serving as a signal input end of the system, a diode D1 of which the N pole is connected with the gain circuit after sequentially passing through a resistor R1 and a resistor R3, and a capacitor C1 of which one end is connected with the N pole of the diode D1 and the other end is connected with the voltage stabilizing source circuit after passing through a capacitor C2; the P pole of the diode D3 is connected with the connection point of the capacitor C1 and the capacitor C2 through the resistor R4.
The voltage stabilizing power supply circuit comprises a voltage stabilizing diode D2 and a capacitor C3, wherein the N pole of the voltage stabilizing diode is connected with the P pole of the diode D3, the P pole of the voltage stabilizing diode is connected with the power supply through a resistor R2, and the capacitor C3 is connected with the resistor R2 in parallel; the P pole of the zener diode D2 is also connected to a gain circuit.
The gain circuit comprises an amplifier P1, a resistor R6 connected between the negative pole of the amplifier P1 and the output end in series; the anode of the amplifier P1 is connected to the P pole of the zener diode D2, the cathode thereof is connected to the feedback link, and the output thereof is connected to the collector of the transistor VT 1.
The auxiliary switch circuit comprises a triode VT4, a capacitor C7, one end of the capacitor C7 is connected with an emitter of the triode VT2 after passing through a resistor R13, the other end of the capacitor C7 is connected with a collector of the triode VT4 after passing through a resistor R14, a resistor R12, one end of the resistor R12 is connected with an emitter of a triode VT2, the other end of the resistor R12 is connected with a feedback link, and a capacitor C4, one end of the capacitor C4 is connected with an N pole of a zener diode D2, and the other end of the capacitor C4 is connected with the emitter of the triode VT4 after passing through a resistor R11; the base of the triode VT4 is connected with the emitter of the triode VT3, and the emitter is grounded.
The buffer circuit comprises an amplifier P2, a resistor R15 connected between the negative pole and the output end of the amplifier P2 in series; the anode of the amplifier P2 is connected to the junction of the resistor R13 and the capacitor C7, and its output terminal is connected to the feedback link and serves as the signal output terminal of the system.
The feedback link comprises an amplifier P3, a capacitor C8 connected between the output end and the negative electrode of the amplifier P3 in series, a resistor R16 with one end connected with the positive electrode of the amplifier P3 and the other end grounded, a P electrode connected with the output end of the amplifier P3, and a diode D5 with an N electrode connected with the negative electrode of the amplifier P1 after sequentially passing through the capacitor C6, the resistor R10 and the resistor R5; the anode of the amplifier P3 is also connected to the output of the amplifier P2.
The type of the amplifier P1, the type of the amplifier P2 and the type of the amplifier P3 are all OP 07.
Compared with the prior art, the invention has the following advantages and beneficial effects: the invention can perform noise reduction processing on the input detection signal, improve the fidelity of the signal, and simultaneously perform undistorted amplification on the signal so as to facilitate subsequent equipment to identify the signal and improve the stability of the lighting device.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1, the signal processing system for an energy-saving lighting device of the present invention includes a transistor VT1, a transistor VT2, a transistor VT3, a front-end noise reduction circuit, a resistor R7, a resistor R8, a resistor R9, a resistor R4, a diode D3, a diode D4, a capacitor C5, a regulator circuit, a gain circuit, an auxiliary switch circuit, a buffer circuit, and a feedback link. Specifically, one end of the resistor R7 is connected to the base of the transistor VT1, and the other end thereof is connected to the collector of the transistor VT 3; one end of the resistor R8 is connected with the base electrode of the triode VT, and the other end of the resistor R8 is connected with the collector electrode of the triode VT 3; the P pole of the diode D4 is connected with the base of the triode VT3, and the N pole of the diode D4 is connected with the emitter of the triode VT 3; resistor R9 is connected in parallel with diode D4; the auxiliary switch circuit is connected with an emitting electrode of the triode VT 2; the buffer circuit is connected with the auxiliary switch circuit; the feedback link is connected with the buffer circuit; the N pole of the diode D3 is connected with the base of the triode VT3 after passing through the capacitor C5, and the P pole of the diode D3 is connected with the front-end noise reduction circuit after passing through the resistor R4; the voltage stabilizing source circuit is connected with the front-end noise reduction circuit; the gain circuit is connected with the voltage stabilizing source circuit; the gain circuit is also connected to the feedback link.
In the above structure, the transistor VT3, the diode D4 and the resistor R9 together form a pulse trigger, which can send out a trigger signal when working. The model of the triode VT3 is BC107C, the models of the diode D4 and the diode D3 are both 1N4001, and the resistance value of the resistor R9 is 20K omega. The triode VT1, the triode VT2, the resistor R7 and the resistor R8 form a switch circuit together, and a trigger signal sent by the pulse trigger can conduct the switch circuit; the model numbers of the triode VT1 and the triode VT2 are both 2N3904, the resistance values of the resistor R7 and the resistor R8 are both 47K omega, the capacitance value of the capacitor C5 is 10uF, and the resistance value of the resistor R4 is 2K omega.
The front-end noise reduction circuit can process input signals and remove interference signals in the signals so as to improve the fidelity of the signals. Specifically, the front-end noise reduction circuit comprises a P pole serving as a signal input end of the system, a diode D1 of which the N pole is connected with the gain circuit after sequentially passing through a resistor R1 and a resistor R3, and a capacitor C1 of which one end is connected with the N pole of the diode D1 and the other end is connected with the voltage stabilizing source circuit after passing through a capacitor C2. The P pole of the diode D3 is connected with the connection point of the capacitor C1 and the capacitor C2 through the resistor R4.
In this embodiment, the P pole of the diode D1 is inputted with a signal detected by an infrared sensor, and when a vehicle or a pedestrian passes through, an external infrared sensor inputs a detection signal to the P pole of the diode D1. In this embodiment, the model of the diode D1 is 1N4001, the resistance of the resistor R1 is 15K Ω, the resistance of the resistor R3 is 10K Ω, and the capacitance values of the capacitor C1 and the capacitor C2 are both 0.1 uF.
The voltage stabilizing source circuit can stabilize the input working voltage and improve the stability of the system. Specifically, the voltage-stabilizing power supply circuit comprises a voltage-stabilizing diode D2 and a capacitor C3, wherein the N pole of the voltage-stabilizing power supply circuit is connected with the P pole of a diode D3, the P pole of the voltage-stabilizing diode D2 is connected with a power supply after passing through a resistor R2, and the capacitor C3 is connected with the resistor R2 in parallel; the P pole of the zener diode D2 is also connected to a gain circuit.
The resistor R2 and the capacitor C3 form an RC filter, which can filter the input voltage, and the zener diode D2 acts to stabilize the operating voltage of the system. The capacitance value of the capacitor C3 is 0.2uF, the resistance value of the resistor R2 is 10K omega, and the model of the voltage stabilizing diode D2 is 1N 4614.
The gain circuit comprises an amplifier P1, a resistor R6 connected between the negative pole of the amplifier P1 and the output end in series; the anode of the amplifier P1 is connected to the P pole of the zener diode D2, the cathode thereof is connected to the feedback link, and the output thereof is connected to the collector of the transistor VT 1. In this embodiment, the type of the amplifier P1 is OP07, and the resistance of the resistor R6 is 560 Ω.
The auxiliary switch circuit comprises a triode VT4, a capacitor C7, one end of the capacitor C7 is connected with an emitter of the triode VT2 after passing through a resistor R13, the other end of the capacitor C7 is connected with a collector of the triode VT4 after passing through a resistor R14, a resistor R12, one end of the resistor R12 is connected with an emitter of a triode VT2, the other end of the resistor R12 is connected with a feedback link, and a capacitor C4, one end of the capacitor C4 is connected with an N pole of a zener diode D2, and the other end of the capacitor C4 is connected with the emitter of the triode VT4 after passing through a resistor R11; the base of the triode VT4 is connected with the emitter of the triode VT3, and the emitter is grounded.
The model of the triode VT4 is BC107C, the capacitance value of the capacitor C4 is 4.7uF, the resistance value of the resistor R11 is 10 Komega, the resistance value of the resistor R14 is 20 Komega, the capacitance value of the capacitor C7 is 2.2uF, the resistance value of the resistor R13 is 10 Komega, and the resistance value of the resistor R12 is 5 Komega.
The buffer circuit includes an amplifier P2 and a resistor R15. When connected, the resistor R15 is connected in series between the negative pole of the amplifier P2 and the output terminal. The anode of the amplifier P2 is connected to the junction of the resistor R13 and the capacitor C7, and its output terminal is connected to the feedback link and serves as the signal output terminal of the system. The amplifier P2 is model OP07, and the resistance of the resistor R15 is 2K omega.
The feedback link comprises an amplifier P3, a capacitor C8 connected between the output end and the negative electrode of the amplifier P3 in series, a resistor R16 with one end connected with the positive electrode of the amplifier P3 and the other end grounded, a P electrode connected with the output end of the amplifier P3, and a diode D5 with an N electrode connected with the negative electrode of the amplifier P1 after sequentially passing through the capacitor C6, the resistor R10 and the resistor R5; the anode of the amplifier P3 is also connected to the output of the amplifier P2. The model of the amplifier P3 is OP07, the resistance value of the resistor R16 is 15K Ω, the capacitance value of the capacitor C8 is 10uF, the model of the diode D5 is 1N4001, the capacitance value of the capacitor C6 is 47uF, the resistance value of the resistor R10 is 4.7K Ω, and the resistance value of the resistor R5 is 560 Ω.
During operation, signals are input into the front end noise reduction circuit through the diode D1, filtered by the capacitor C1 and the capacitor C2 and input into the amplifier P1. After filtering and voltage stabilization, the voltage is input into a pulse trigger through a diode D3 and a capacitor C5, so that a triode VT3 is conducted, and the base electrodes of the triode VT1, the triode VT2 and the triode VT4 obtain voltage; meanwhile, the voltage is input to the transistor VT4 after passing through the capacitor C4 and the resistor R11, and the transistor VT4 is conducted. The amplifier P1 amplifies the signal and applies it to the transistor VT1, and the transistor VT1 and the transistor VT2 are also turned on. The signal is input to the amplifier P2 after passing through the resistor R13, and is output to an external controller through the output end of the amplifier P2, and the controller controls the lighting of the lighting lamp after being electrified. Meanwhile, the signal is fed back to the negative electrode of the amplifier P1 through a feedback link, so that the gain of the amplifier P1 can be stabilized, and the stability of the signal is improved.
As described above, the present invention can be preferably realized.
Claims (4)
1. The signal processing system for the energy-saving lighting device is characterized by comprising a triode VT1, a triode VT2, a triode VT3, a front noise reduction circuit, a resistor R7, one end of which is connected with the base electrode of a triode VT1, the other end of which is connected with the collector electrode of a triode VT3, a resistor R8, one end of which is connected with the base electrode of a triode VT2, the other end of which is connected with the collector electrode of a triode VT3, a diode D4, a P electrode of which is connected with the base electrode of a triode VT3, an N electrode of which is connected with the emitter electrode of a triode VT3, a resistor R9, which is connected with the diode D4 in parallel, an auxiliary switch circuit, a buffer circuit connected with the emitter electrode of the triode VT2, and a feedback link connected with the buffer circuit, wherein the N electrode of the diode D3 is connected with the base electrode of a triode VT3 through a capacitor C5, and the P electrode of the diode D3, which is connected with the front noise reduction circuit after the resistor R4, the voltage stabilizing source circuit is connected with the front end noise reduction circuit, and the gain circuit is connected with the voltage stabilizing source circuit; the gain circuit is also connected with a feedback link; the front-end noise reduction circuit comprises a P pole serving as a signal input end of the system, a diode D1 and a capacitor C1, wherein the N pole of the diode D1 is connected with the gain circuit after sequentially passing through a resistor R1 and a resistor R3, one end of the capacitor C1 is connected with the N pole of the diode D1, and the other end of the capacitor C2 is connected with the voltage stabilizing source circuit; the P pole of the diode D3 is connected with the connection point of the capacitor C1 and the capacitor C2 through the resistor R4; the voltage stabilizing power supply circuit comprises a voltage stabilizing diode D2 and a capacitor C3, wherein the N pole of the voltage stabilizing diode is connected with the P pole of the diode D3, the P pole of the voltage stabilizing diode is connected with the power supply through a resistor R2, and the capacitor C3 is connected with the resistor R2 in parallel; the P pole of the voltage stabilizing diode D2 is also connected with a gain circuit; the gain circuit comprises an amplifier P1, a resistor R6 connected between the negative pole of the amplifier P1 and the output end in series; the anode of the amplifier P1 is connected with the P pole of the zener diode D2, the cathode of the amplifier P1 is connected with the feedback link, and the output end of the amplifier P1 is connected with the collector of the triode VT 1; the auxiliary switch circuit comprises a triode VT4, a capacitor C7, one end of the capacitor C7 is connected with an emitter of the triode VT2 after passing through a resistor R13, the other end of the capacitor C7 is connected with a collector of the triode VT4 after passing through a resistor R14, a resistor R12, one end of the resistor R12 is connected with an emitter of a triode VT2, the other end of the resistor R12 is connected with a feedback link, and a capacitor C4, one end of the capacitor C4 is connected with an N pole of a zener diode D2, and the other end of the capacitor C4 is connected with the emitter of the triode VT4 after passing through a resistor R11; the base electrode of the triode VT4 is connected with the emitter electrode of the triode VT3, and the emitter electrode is grounded; the VT1 emitter is connected to the VT2 collector.
2. The signal processing system for an energy saving lighting device according to claim 1, wherein the buffer circuit comprises an amplifier P2, a resistor R15 connected in series between the cathode of the amplifier P2 and the output terminal; the anode of the amplifier P2 is connected to the junction of the resistor R13 and the capacitor C7, and its output terminal is connected to the feedback link and serves as the signal output terminal of the system.
3. The signal processing system of claim 2, wherein the feedback link comprises an amplifier P3, a capacitor C8 connected in series between the output terminal and the negative terminal of the amplifier P3, a resistor R16 having one end connected to the positive terminal of the amplifier P3 and the other end connected to ground, a diode D5 having a P terminal connected to the output terminal of the amplifier P3 and an N terminal connected to the negative terminal of the amplifier P1 through the capacitor C6, the resistor R10 and the resistor R5 in sequence; the anode of the amplifier P3 is also connected to the output of the amplifier P2.
4. The signal processing system for an energy saving lighting device of claim 3 wherein the type of the amplifier P1, the type of the amplifier P2, and the type of the amplifier P3 are all OP 07.
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