Intelligent control circuit for aisle light

Abstract

The utility model relates to lighting control technical field discloses a kind of passageway lamp intelligent control circuit of identification distance larger and reliable higher, including the detection and amplification module (110) for detecting the temperature signal of mobile object, comparison module (120) and switch module (130), wherein, when voltage signal is greater than / less than voltage threshold value, comparison module (120) exports high level control signal according to current comparison result, control signal is used to control switch module (130) work, to control luminaire to open.

Description

Technical Field

[0001] This utility model relates to the field of lighting control technology, and more specifically, to an intelligent control circuit for corridor lights. Background Technology

[0002] Motion sensor lights are widely used in daily life, especially in public areas such as corridors and stairwells. They automatically turn on when someone is detected passing by and automatically turn off when no one is detected. Currently, the sensors in existing lighting control circuits can only detect users at close range (e.g., 2-3 meters), controlling and turning on the corridor lights based on the detection result. However, when the spacing between the lights is greater than the detection distance, and the distance between the user and the sensor exceeds the detection range, the control circuit cannot detect the current user, leaving the lights off and thus failing to adequately meet user needs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology, which is that when the spacing between the lamps is set far apart and the distance between the user and the sensor is greater than the recognizable distance, the control circuit cannot detect the current user, causing the lamps to remain in the off state, thus failing to meet the user's needs. This invention provides a smart control circuit for corridor lights with a larger recognition distance and higher reliability.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct an intelligent control circuit for corridor lights, which has the following features:

[0005] The detection and amplification module, which is configured within the control circuit, is used to detect the temperature signal of the moving object, convert the temperature signal into a voltage signal, and amplify it.

[0006] The comparison module has a voltage threshold.

[0007] The input terminal of the comparison module is connected to the output terminal of the detection and amplification module through a threshold circuit, and is used to receive the voltage signal output by the detection and amplification module.

[0008] The switch module has one input terminal connected to the output terminal of the comparison module.

[0009] The other input terminal of the switch module is connected to one end of the lamp;

[0010] When the voltage signal is greater than or less than the voltage threshold, the comparison module outputs a high-level control signal based on the current comparison result. The control signal is used to control the switching module to work, thereby controlling the lamp to turn on.

[0011] In some implementations, the comparison module includes at least a first comparator.

[0012] The non-inverting and inverting inputs of the first comparator are respectively connected to one end of the threshold circuit.

[0013] The other end of the threshold circuit is connected to the output of the detection and amplification module.

[0014] The output of the first comparator is connected to one input of the switching module.

[0015] In some embodiments, the threshold circuit includes a second diode and a fifth diode connected in parallel.

[0016] The cathode of the second diode is coupled to the non-inverting input of the first comparator.

[0017] The anode of the fifth diode is coupled to the inverting input of the first comparator.

[0018] The anode of the second diode and the cathode of the fifth diode are respectively connected to the output terminal of the detection and amplification module to receive the voltage signal output by the detection and amplification module.

[0019] In some embodiments, the comparison module further includes a first voltage divider circuit and a second voltage divider circuit.

[0020] The first terminal of the first voltage divider circuit and the second voltage divider circuit are connected to the power supply terminal.

[0021] The second terminal of the first voltage divider circuit is connected to the non-inverting input terminal of the first comparator.

[0022] The second terminal of the second voltage divider circuit is connected to the inverting input terminal of the first comparator.

[0023] The third terminals of the first voltage divider circuit and the second voltage divider circuit are connected to the common terminal.

[0024] In some embodiments, the switching module includes a power supply circuit and a switching circuit.

[0025] The output terminal of the power supply circuit is connected to the detection and amplification module, the first voltage divider circuit, and the second voltage divider circuit, respectively.

[0026] One input terminal of the switching circuit is connected to the output terminal of the first comparator, and is used to receive the control signal.

[0027] The other input terminal of the switching circuit is connected to the output terminal of the power supply circuit.

[0028] In some embodiments, the switching circuit includes at least a second comparator and a silicon controlled rectifier (SCR).

[0029] The non-inverting input of the second comparator is connected to the output of the first comparator.

[0030] The inverting input of the second comparator is connected to the second terminal of a voltage divider circuit.

[0031] The control terminal of the thyristor is connected to the output terminal of the second comparator.

[0032] The first end of the thyristor is connected to one end of the lamp.

[0033] The second terminal of the thyristor is connected to the negative terminal of the power supply.

[0034] In some embodiments, the detection and amplification module includes at least a pyroelectric sensor, a first amplification module, and a second amplification module.

[0035] The pyroelectric sensor is used to acquire the temperature signal.

[0036] One input terminal of the first amplification module is connected to the output terminal of the pyroelectric sensor to receive the temperature signal, convert it into a voltage signal, and perform amplification.

[0037] The other input terminal of the first amplification module is connected to the common terminal.

[0038] One input terminal of the second amplification module is connected to the output terminal of the power supply circuit.

[0039] The other input terminal of the second amplification module is connected to the output terminal of the first amplification module, and is used to receive the voltage signal and amplify it in two stages.

[0040] The output terminal of the second amplification module is connected to the anode of the second diode and the cathode of the fifth diode, respectively.

[0041] In some embodiments, the first amplification module includes at least a first amplifier.

[0042] The non-inverting input of the first amplifier is connected to the output of the pyroelectric sensor to receive the temperature signal.

[0043] The inverting input terminal of the first amplifier is connected to the common terminal via a seventeenth resistor and a ninth capacitor connected in series.

[0044] The output terminal of the first amplifier is connected to the other input terminal of the second amplifier module through a fifth capacitor and a tenth resistor connected in series.

[0045] In some embodiments, the second amplification module includes at least a second amplifier.

[0046] The non-inverting input of the second amplifier is connected to the second terminal of a voltage divider circuit.

[0047] The inverting input terminal of the second amplifier is connected to one end of the tenth resistor.

[0048] The output terminal of the second amplifier is connected to the anode of the second diode and the cathode of the fifth diode, respectively.

[0049] The intelligent control circuit for corridor lights described in this invention includes a detection and amplification module for detecting temperature signals from moving objects, a comparison module, and a switching module. When the voltage signal is greater than or less than a voltage threshold, the comparison module outputs a high-level control signal based on the current comparison result. This control signal controls the switching module to turn on the lights. Compared to existing technologies, the detection and amplification module can detect and process temperature signals generated by moving objects within a 10-meter radius, amplify them in two stages, and then compare them with a voltage threshold. Based on the comparison result, a corresponding control signal is output to control and turn on the corridor lights. This effectively solves the problem that when the distance between the lights is too far and the distance between the user and the sensor is greater than the detectable distance, the control circuit cannot detect the current user, causing the lights to remain off and thus failing to meet user needs. Attached Figure Description

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0051] Figure 1 This is a circuit diagram of an embodiment of the intelligent control circuit for corridor lights provided by this utility model. Detailed Implementation

[0052] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0053] like Figure 1 As shown, in the first embodiment of the intelligent control circuit for corridor lights of this utility model, the intelligent control circuit 10 for corridor lights includes a detection and amplification module 110, a comparison module 120, and a switching module 130.

[0054] The detection and amplification module 110 has the function of signal detection and amplification;

[0055] The comparison module 120 is equipped with a voltage threshold and has the functions of signal comparison and outputting a control signal (high level or low level) according to the comparison result;

[0056] The switch module 130 functions as a switch, receiving control signals (high or low level) input from the comparison module 120 and being controlled to open or close according to the level of the input control signal.

[0057] Specifically, the detection and amplification module 110 is configured in the control circuit to detect the temperature signal of the moving object, convert the temperature signal into a voltage signal, amplify it, and output the amplified voltage signal to the comparison module 120.

[0058] Comparison module 120 has a voltage threshold, for example: greater than 4.1V or less than 2.7V.

[0059] The input terminal of the comparison module 120 is connected to the output terminal of the detection and amplification module 110 through the threshold circuit 121. It is used to receive the voltage signal output by the detection and amplification module 110, compare the input voltage signal with the voltage threshold, and then output a control signal according to the comparison result.

[0060] One input terminal of the switch module 130 is connected to the output terminal of the comparator module 120, and is used to receive the control signal output by the comparator module 120.

[0061] The other input terminal of the switch module 130 is connected to one end of the lamp;

[0062] When the voltage signal is within the voltage threshold, the comparison module 120 outputs a low-level control signal based on the current comparison result, and the switch module 130 is in the off state.

[0063] When the voltage signal is greater than or less than the voltage threshold, the comparison module 120 outputs a high-level control signal according to the current comparison result. The control signal is used to control the switch module 130 to work so as to control the lamp to turn on.

[0064] Using this technical solution, the detection and amplification module 110 can detect and process the temperature signal generated by moving objects within 10 meters, amplify it in two stages, and then compare it with the voltage threshold. Based on the comparison result, a corresponding control signal is output to control and turn on the corridor lights. This can effectively solve the problem that when the spacing between the lights is set far and the distance between the user and the sensor is greater than the identifiable distance, the control circuit cannot detect the current user, causing the lights to remain in the off state, thus failing to meet the user's needs.

[0065] In some implementations, to ensure the reliability of the output control signal, a first comparator U1A can be set in the comparison module 120. This comparator has a voltage threshold, for example, greater than 4.1V or less than 2.7V, and has the function of comparing signals and outputting control signals based on the comparison results.

[0066] Specifically, the non-inverting input (pin 3) and inverting input (pin 2) of the first comparator U1A are respectively connected to one end of the threshold circuit 121.

[0067] The other end of the threshold circuit 121 is connected to the output terminal of the detection and amplification module 110. The voltage signal output by the detection and amplification module 110 is input to the non-inverting input terminal (corresponding to pin 3) and the inverting input terminal (corresponding to pin 2) of the first comparator U1A through the threshold circuit 121, and compared with the voltage threshold.

[0068] The output terminal (corresponding to pin 1) of the first comparator U1A is connected to an input terminal of the switch module 130, which is used to receive control signals.

[0069] When the voltage signal is within the voltage threshold, the first comparator U1A outputs a low-level control signal based on the current comparison result, and the switch module 130 is in the off state.

[0070] When the voltage signal is greater than or less than the voltage threshold, the first comparator U1A outputs a high-level control signal based on the current comparison result. The control signal is used to control the operation of the switch module 130.

[0071] In some implementations, to ensure the stability of the voltage threshold of the first comparator U1A, a second diode D2 and a fifth diode D5 connected in parallel can be provided in the threshold circuit 121, which are used to transmit level signals when the voltage level is high or low.

[0072] The cathode of the second diode D2 is coupled to the non-inverting input terminal (pin 3) of the first comparator U1A.

[0073] The anode of the fifth diode D5 is coupled to the inverting input terminal (pin 2) of the first comparator U1A.

[0074] The anode of the second diode D2 and the cathode of the fifth diode D5 are respectively connected to the output terminal of the detection and amplification module 110 to receive the voltage signal output by the detection and amplification module 110 and input the voltage signal to the non-inverting input terminal (corresponding to pin 3) of the first comparator U1A or the inverting input terminal (corresponding to pin 2) of the first comparator U1A.

[0075] In some embodiments, the comparison module 120 further includes a first voltage divider circuit 122 and a second voltage divider circuit 123, which have a voltage dividing function.

[0076] Specifically, the first terminal of the first voltage divider circuit 122 and the second voltage divider circuit 123 is connected to the power supply terminal (corresponding to the +6V terminal).

[0077] The second terminal of the first voltage divider circuit 122 is connected to the non-inverting input terminal (corresponding to pin 3) of the first comparator U1A.

[0078] The second terminal of the second voltage divider circuit 123 is connected to the inverting input terminal (corresponding to pin 2) of the first comparator U1A.

[0079] The third terminals of the first voltage divider circuit 122 and the second voltage divider circuit 123 are connected to the common terminal.

[0080] The first voltage divider circuit 122 includes a sixth resistor R6 and an eighteenth resistor R18 connected in series.

[0081] The second voltage divider circuit 123 includes a seventh resistor R7 and a nineteenth resistor R19 connected in series.

[0082] One end of the sixth resistor R6 and the seventh resistor R7 are connected to the power supply terminal (corresponding to the +6V terminal).

[0083] The connection terminals of the sixth resistor R6 and the eighteenth resistor R18 are connected to the non-inverting input terminal (pin 3) of the first comparator U1A.

[0084] The connection terminals of the seventh resistor R7 and the nineteenth resistor R19 are connected to the inverting input terminal (pin 2) of the first comparator U1A.

[0085] One end of the eighteenth resistor R18 and the nineteenth resistor R19 are connected to the common terminal.

[0086] That is, the +6V voltage signal is divided by the sixth resistor R6 and the eighteenth resistor R18 and then input to the non-inverting input terminal (corresponding to pin 3) of the first comparator U1A to form the upper threshold voltage value.

[0087] The +6V voltage signal is divided by the seventh resistor R7 and the nineteenth resistor R19 and then input to the inverting input terminal (corresponding to pin 2) of the first comparator U1A to form the lower threshold voltage value.

[0088] In some implementations, to ensure the stability of the control circuit operation, a power supply circuit 131 and a switching circuit 132 may be provided in the switching module 130.

[0089] The output terminal of the power supply circuit 131 is connected to the detection and amplification module 110, the first voltage divider circuit 122 and the second voltage divider circuit 123 respectively, providing a +6V working power signal to the above circuit modules.

[0090] One input terminal of the switching circuit 132 is connected to the output terminal (pin 1) of the first comparator U1A to receive control signals.

[0091] The other input terminal of the switch circuit 132 is connected to one end of the lamp (corresponding to LAMP1).

[0092] The third input terminal of the switching circuit 132 is connected to the negative terminal of the power supply (corresponding to AC-N).

[0093] When the input control signal is high, the switch circuit 132 is turned on, and the current from the positive terminal of the power supply (corresponding to AC-L) flows through the lamp to the negative terminal of the power supply (corresponding to AC-N), thereby lighting the lamp.

[0094] In some embodiments, the switching circuit 132 includes at least a second comparator U1D and a silicon controlled rectifier TR1, wherein the second comparator U1D functions as a signal comparator and the silicon controlled rectifier TR1 functions as a switch.

[0095] Specifically, the non-inverting input terminal (corresponding to pin 12) of the second comparator U1D is connected to the output terminal (corresponding to pin 1) of the first comparator U1A.

[0096] The inverting input terminal (corresponding to pin 13) of the second comparator U1D is connected to the second terminal of a voltage divider circuit.

[0097] The voltage divider circuit described above is composed of an eighth resistor R8 and a twentieth resistor R20 connected in series.

[0098] The control terminal (G terminal) of the thyristor TR1 is connected to the output terminal (pin 14) of the second comparator U1D.

[0099] The first terminal of the thyristor TR1 (corresponding to terminal T2) is connected to one end of the lamp (corresponding to LAMP1).

[0100] The second terminal of the thyristor TR1 (corresponding to terminal T1) is connected to the negative terminal of the power supply (corresponding to AC-N).

[0101] When the input control signal is high, the potential of the non-inverting input terminal (corresponding to pin 12) of the second comparator U1D is higher than the potential of the inverting input terminal (corresponding to pin 13). The second comparator U1D outputs a high-level control signal to control the thyristor TR1 to conduct, so that the current from the positive terminal of the power supply (corresponding to AC-L) flows through the lamp to the negative terminal of the power supply (corresponding to AC-N), thereby lighting the lamp.

[0102] In some embodiments, the detection and amplification module 110 includes at least a pyroelectric sensor PIR1, a first amplification module 111, and a second amplification module 112.

[0103] Among them, the pyroelectric sensor PIR1 is used to acquire temperature signals.

[0104] One input terminal of the first amplification module 111 is connected to the output terminal of the pyroelectric sensor PIR1, and is used to receive the temperature signal, convert it into a voltage signal, and perform a first-stage amplification.

[0105] The other input terminal of the first amplification module 111 is connected to the common terminal.

[0106] One input terminal of the second amplification module 112 is connected to the output terminal of the power supply circuit 131.

[0107] The other input terminal of the second amplification module 112 is connected to the output terminal of the first amplification module 111, and is used to receive the voltage signal amplified by the first amplification module 111 and amplify it for a second stage.

[0108] The output terminal of the second amplification module 112 is connected to the anode of the second diode D2 and the cathode of the fifth diode D5, respectively.

[0109] In some embodiments, the first amplification module 111 includes at least a first amplifier U1B, which has the function of signal amplification.

[0110] Specifically, the non-inverting input terminal (corresponding to pin 5) of the first amplifier U1B is connected to the output terminal (corresponding to the S terminal) of the pyroelectric sensor PIR1 to receive the temperature signal, and then amplify the temperature signal as a voltage signal.

[0111] The inverting input terminal (corresponding to pin 6) of the first amplifier U1B is connected to the common terminal through the seventeenth resistor R17 and the ninth capacitor C9 connected in series.

[0112] The output terminal (corresponding to pin 7) of the first amplifier U1B is connected to the other input terminal of the second amplifier module 112 through the fifth capacitor C5 and the tenth resistor R10 connected in series, so as to output the amplified voltage signal to the second amplifier module 112.

[0113] In some embodiments, the second amplification module 112 includes at least a second amplifier U1C, which has the function of signal amplification.

[0114] The non-inverting input terminal (corresponding to pin 10) of the second amplifier U1C is connected to the second terminal of a voltage divider circuit.

[0115] The voltage divider circuit described above is composed of a fifth resistor R5 and a fourteenth resistor R14 connected in series.

[0116] The inverting input terminal (corresponding to pin 9) of the second amplifier U1C is connected to one end of the tenth resistor R10.

[0117] The output terminal (corresponding to pin 8) of the second amplifier U1C is connected to the anode of the second diode D2 and the cathode of the fifth diode D5, respectively.

[0118] Specifically, the drain (D) of the pyroelectric sensor PIR1 is the power supply pin, the emitter (E) is the ground pin, and the source (S) is the output pin.

[0119] When the pyroelectric sensor PIR1 detects the arrival of a human body, a weak signal is output from the S pole of the pyroelectric sensor. This signal is filtered by the fifteenth resistor R15 and the sixth capacitor C6, and then sent to pin 5 of the first amplifier U1B through the ninth resistor R9. The signal is then amplified by the thirteenth resistor R13, the seventh capacitor C7, the seventeenth resistor R17, and the ninth capacitor C9, and is set to a frequency bandwidth circuit of 0.3Hz~3H. The signal is then output from pin 7 of the first amplifier U1B through the fifth capacitor C5 and the tenth resistor R10, and sent to pin 9 of the second amplifier U1C. The signal is then amplified by the fourth resistor R4 and the third capacitor C3 in the second amplifier U1C, and output as a 0.5V~5.5V voltage signal from pin 8 of the second amplifier U1C.

[0120] The "+6V" voltage signal is divided by the fifth resistor R5, the fourteenth resistor R14 and the tenth capacitor C10 to obtain a voltage of 3.0V, which is then sent to pin 10 of the second amplifier U1C as a reference.

[0121] The voltage divided by the seventh resistor R7 and the nineteenth resistor R19 is 3.3V, which is sent to pin 2 of the first comparator U1A. The voltage divided by the sixth resistor R6 and the eighteenth resistor R18 is 2.7V, which is sent to pin 3 of the first comparator U1A, forming the upper and lower threshold circuits of the first comparator U1A.

[0122] When the pyroelectric sensor PIR1 does not detect a human body approaching, the voltage at pin 2 of the first comparator U1A is greater than the voltage at pin 3 of the first comparator U1A, and the output of pin 1 of the first comparator U1A is 0 level. At this time, the corridor light does not turn on.

[0123] Because the waveform output by the pyroelectric sensor PIR1 when detecting the human body is sometimes a positive voltage and sometimes a negative voltage;

[0124] When a human body is detected, the PIR1 signal is amplified by two stages, and pin 8 of the second amplifier U1C is sometimes high and sometimes low. The high / low level can be transmitted through the second diode D2 and the fifth diode D5.

[0125] When the high level of pin 8 of the second amplifier U1C is greater than 4.1, it is sent to pin 3 of the first comparator U1A through the second diode D2. When the voltage of pin 3 of the first comparator U1A is greater than the voltage of pin 2, the output of pin 1 of the first comparator U1A is high.

[0126] When the voltage at pin 8 of the second amplifier U1C is less than 2.2V, the voltage at pin 3 of the first comparator U1A is pulled down to less than 2.7V through the fifth diode D5. At this time, the voltage at pin 2 of the first comparator U1A is less than the voltage at pin 3, and pin 1 of the first comparator U1A also outputs a high level.

[0127] When pin 1 of the first comparator U1A is high, the output is sent to pin 12 of the second comparator U1D through the third diode D3 and the eleventh resistor R11.

[0128] The voltage at pin 13 of the second comparator U1D is divided by the eighth resistor R8 and the second resistor R2 to obtain a 1V reference voltage.

[0129] When the voltage at pin 12 of the second comparator U1D is greater than the voltage at pin 13, the output of pin 14 of the second comparator U1D is high, and the thyristor TR1 is turned on through the fourth diode D4 and the twelfth resistor R12. The network "AC-L" returns to the network "AC-N" through the lamp LAMP1, so the current of the lamp LAMP1 flows through it, and the corridor is lit.

[0130] The photoresistor circuit 124 is composed of a photoresistor CDS1, an adjustable resistor VR1, and a transistor Q1. It does not light up during the day and only works at night. Adjusting the resistance value of the adjustable resistor VR1 can adjust the light sensitivity.

[0131] Among them, the eighth capacitor C8 and the sixteenth resistor R16 are the delay time circuit for lighting the corridor light. The high level output of pin 1 of the first comparator U1A charges the eighth capacitor C8 through the third diode D3 and the eleventh resistor R11. The charging voltage is 6V-D3=6-0.7=5.3V. When the voltage reaches 5.3V, the charging stops.

[0132] When pin 1 of the first comparator U1A is low, the voltage across the eighth capacitor C8 discharges to pin 12 of the second comparator U1D. When the voltage at pin 12 of the second comparator U1D is lower than the voltage at pin 13 (1.0V), pin 14 of the second comparator U1D is low, and the aisle light is turned off.

[0133] The delay time is equal to the discharge time of the eighth capacitor C8.

[0134] That is: τ*ln*(5.3v / 1v)=(R16+VR2)C8*(5.3 / 1)=1000000*0.000022*5.3=116S, which is about 2 minutes, meeting the customer's need to cross the corridor.

[0135] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A smart control circuit for corridor lights, characterized in that, have: The detection and amplification module, which is configured within the control circuit, is used to detect the temperature signal of the moving object, convert the temperature signal into a voltage signal, and amplify it. The comparison module has a voltage threshold. The input terminal of the comparison module is connected to the output terminal of the detection and amplification module through a threshold circuit, and is used to receive the voltage signal output by the detection and amplification module. The switch module has one input terminal connected to the output terminal of the comparison module. The other input terminal of the switch module is connected to one end of the lamp; When the voltage signal is greater than or less than the voltage threshold, the comparison module outputs a high-level control signal based on the current comparison result. The control signal is used to control the switching module to work, thereby controlling the lamp to turn on. The comparison module includes at least a first comparator. The non-inverting and inverting inputs of the first comparator are respectively connected to one end of the threshold circuit. The other end of the threshold circuit is connected to the output of the detection and amplification module. The output of the first comparator is connected to one input of the switching module; The threshold circuit includes a second diode and a fifth diode connected in parallel. The cathode of the second diode is coupled to the non-inverting input of the first comparator. The anode of the fifth diode is coupled to the inverting input of the first comparator. The anode of the second diode and the cathode of the fifth diode are respectively connected to the output terminal of the detection and amplification module to receive the voltage signal output by the detection and amplification module; The comparison module further includes a first voltage divider circuit and a second voltage divider circuit. The first terminal of the first voltage divider circuit and the second voltage divider circuit are connected to the power supply terminal. The second terminal of the first voltage divider circuit is connected to the non-inverting input terminal of the first comparator. The second terminal of the second voltage divider circuit is connected to the inverting input terminal of the first comparator. The third terminals of the first voltage divider circuit and the second voltage divider circuit are connected to the common terminal.

2. The intelligent control circuit for corridor lights according to claim 1, characterized in that, The switching module includes a power supply circuit and a switching circuit. The output terminal of the power supply circuit is connected to the detection and amplification module, the first voltage divider circuit, and the second voltage divider circuit, respectively. One input terminal of the switching circuit is connected to the output terminal of the first comparator, and is used to receive the control signal. The other input terminal of the switching circuit is connected to the output terminal of the power supply circuit.

3. The intelligent control circuit for corridor lights according to claim 2, characterized in that, The switching circuit includes at least a second comparator and a thyristor. The non-inverting input of the second comparator is connected to the output of the first comparator. The inverting input of the second comparator is connected to the second terminal of a voltage divider circuit. The control terminal of the thyristor is connected to the output terminal of the second comparator. The first end of the thyristor is connected to one end of the lamp. The second terminal of the thyristor is connected to the negative terminal of the power supply.

4. The intelligent control circuit for corridor lights according to claim 3, characterized in that, The detection and amplification module includes at least a pyroelectric sensor, a first amplification module, and a second amplification module. The pyroelectric sensor is used to acquire the temperature signal. One input terminal of the first amplification module is connected to the output terminal of the pyroelectric sensor to receive the temperature signal, convert it into a voltage signal, and perform amplification. The other input terminal of the first amplification module is connected to the common terminal. One input terminal of the second amplification module is connected to the output terminal of the power supply circuit. The other input terminal of the second amplification module is connected to the output terminal of the first amplification module, and is used to receive the voltage signal and amplify it in two stages. The output terminal of the second amplification module is connected to the anode of the second diode and the cathode of the fifth diode, respectively.

5. The intelligent control circuit for corridor lights according to claim 4, characterized in that, The first amplification module includes at least a first amplifier. The non-inverting input of the first amplifier is connected to the output of the pyroelectric sensor to receive the temperature signal. The inverting input terminal of the first amplifier is connected to the common terminal via a seventeenth resistor and a ninth capacitor connected in series. The output terminal of the first amplifier is connected to the other input terminal of the second amplifier module through a fifth capacitor and a tenth resistor connected in series.

6. The intelligent control circuit for corridor lights according to claim 5, characterized in that, The second amplification module includes at least a second amplifier. The non-inverting input of the second amplifier is connected to the second terminal of a voltage divider circuit. The inverting input terminal of the second amplifier is connected to one end of the tenth resistor. The output terminal of the second amplifier is connected to the anode of the second diode and the cathode of the fifth diode, respectively.

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