CN211909256U - Street lamp control device - Google Patents

Abstract

A street lamp control device provided by the present application includes: a microphone, a band-pass filter, a band-stop filter, a main control chip, a first resistor, a switch circuit and a relay; an output end of the microphone is connected to an input end of the band-pass filter ;The output end of the band-pass filter is connected with the input end of the band-stop filter, the output end of the band-stop filter is connected with the signal input end of the main control chip; the signal output end of the main control chip is connected with the control input end of the switch circuit The output end of the switch circuit is connected to the input end of the control side of the relay, the output end of the control side of the relay is connected to one end of the first resistor, the other end of the first resistor is the ground end, and the action side of the relay is connected to the street light. The application can realize that the sound occurring on one side of the road only controls the lighting of the street lights on the side of the road where the sound is located, but does not control the lighting of the street lights on the other side of the road. When an object passes through the road, only the road where the object is located can be controlled. The street lights on one side are lit to save energy.

Description

A street light control device

technical field

The present application relates to the field of sound-controlled lamps, and in particular, to a street lamp control device.

Background technique

At present, street lights are mainly installed on both sides of the road. When using sound to control street lights, as long as there is a sound greater than a certain sound intensity around the street lights, the street lights can be controlled to keep the lights on.

Since the range of sounds that can be collected by the street lights on both sides of the road overlaps, the sound emitted on one side of the road may also be collected by the sound collectors on the street lights on the other side of the road, so that the sound emitted on one side of the road may be collected. The sound can control the street lights on both sides of the road to keep the lights on, wasting energy.

Utility model content

In view of this, the present application provides a street lamp control device, which can realize that the sound generated on one side of the road can only control the street lamp on the side of the road where the sound is located to keep the lighting state.

In order to achieve the purpose, the application provides the following technical solutions:

In a first aspect, a street lamp control device includes: a microphone, a band-pass filter, a band-stop filter, a main control chip, a first resistor, a switch circuit, and a relay;

The output end of the above-mentioned microphone is connected with the input end of the above-mentioned bandpass filter;

The output end of the above-mentioned band-pass filter is connected with the input end of the above-mentioned band-stop filter, and the output end of the above-mentioned band-stop filter is connected with the signal input end of the main control chip;

The signal output terminal of the above-mentioned main control chip is connected to the base of the triode of the above-mentioned switch circuit, the collector of the triode of the above-mentioned switch circuit is connected to one end of the control side of the above-mentioned relay, and the other end of the control side of the above-mentioned relay is connected to the first resistor. One end is connected, the other end of the first resistor is the ground terminal, and the action side of the relay is connected to the street lamp.

With reference to the first aspect, in some optional embodiments, the above device further includes: an electrostatic discharge protection device, one end of the electrostatic discharge protection device is connected to the output end of the microphone, and the other end is a ground end.

With reference to the first aspect, in some optional embodiments, the above-mentioned device further includes: a second resistor, and the output end of the above-mentioned band-stop filter is connected to the signal input end of the above-mentioned main control chip through the above-mentioned second resistor.

In combination with the first aspect, in some optional implementation manners, the bandpass filter includes: a third resistor, a fourth resistor, a first capacitor, and a second capacitor, wherein one end of the third resistor is connected to the first One end of the capacitor is connected, the other end of the first capacitor is connected to one end of the fourth resistor and is connected to one end of the second capacitor, the other end of the third resistor is the input end of the band-pass filter, the second One end of the capacitor connected to the first capacitor is the output end of the band-pass filter, and the other end of the fourth resistor and the other end of the second capacitor are ground ends.

With reference to the first aspect, in some optional implementation manners, the above-mentioned band-stop filter includes: a fifth resistor, a sixth resistor, a seventh resistor, a third capacitor, a fourth capacitor, and a fifth capacitor, wherein the above-mentioned first One end of the fifth resistor is the input end of the band-stop filter, the input end of the band-stop filter is connected to the output end of the band-pass filter and is connected to one end of the fourth capacitor, and the other end of the fifth resistor is connected to the output end of the band-pass filter. One end of the sixth resistor is connected to one end of the third capacitor, the other end of the third capacitor is the ground terminal, and the other end of the fourth capacitor is connected to one end of the fifth capacitor and is connected to the seventh resistor. One end is connected, the other end of the seventh resistor is the ground terminal, the other end of the fifth capacitor is connected to the other end of the sixth resistor, and the end of the sixth resistor and the fifth capacitor is connected to the band-stop filter. output.

With reference to the first aspect, in some optional implementation manners, the above-mentioned switch circuit includes: an eighth resistor, a ninth resistor, a tenth resistor, a sixth capacitor, a seventh capacitor, and a triode;

One end of the above-mentioned eighth resistor is the control input end of the above-mentioned switch circuit, the control input end of the above-mentioned switch circuit is connected to the signal output end of the above-mentioned main control chip and is connected to one end of the above-mentioned sixth capacitor, and the other end of the above-mentioned sixth capacitor is the ground terminal, the other end of the eighth resistor is connected to the base of the triode and is connected to one end of the ninth resistor, the other end of the ninth resistor is the ground terminal, and one end of the tenth resistor is the external power connection terminal, and is connected to one end of the seventh capacitor, the other end of the seventh capacitor is the ground terminal, the other end of the tenth resistor is connected to the input end of the control side of the relay and is connected to the collector of the triode, the The transmitter is extremely grounded.

With reference to the first aspect, in some optional implementation manners, the above-mentioned microphone is a microphone array.

With reference to the first aspect, in some optional embodiments, the above-mentioned apparatus further includes: the above-mentioned microphone array is disposed inside the above-mentioned sound-receiving cover.

With reference to the first aspect, in some optional implementation manners, the above-mentioned sound-receiving cover is oriented toward the approaching direction of the road side where the above-mentioned microphone array is located.

It can be seen from the above scheme that a street lamp control device provided by this application includes: a microphone, a band-pass filter, a band-stop filter, a main control chip, a first resistor, a switch circuit and a relay; The input end of the above-mentioned band-pass filter is connected; the output end of the above-mentioned band-pass filter is connected with the input end of the above-mentioned band-stop filter, and the output end of the above-mentioned band-stop filter is connected with the signal input end of the main control chip; the above-mentioned main control The signal output end of the chip is connected to the base of the triode of the switch circuit, the collector of the triode of the switch circuit is connected to one end of the control side of the relay, and the other end of the control side of the relay is connected to one end of the first resistor, The other end of the first resistor is a ground terminal, and the action side of the relay is connected to the street lamp. It can be seen from this that the microphone can collect the sound signal on the side of the road where the street lamp is located within a certain range from the street lamp. The collected sound signal passes through the band-pass filter and the band-stop filter, which can filter out the unwanted sound signal and obtain the target sound signal. The main control chip can determine whether the target sound signal is gradually increasing. If it gradually increases, it means that there may be an object moving towards the street light on the side of the road where the street light is located. In this case, the main control chip can send a light signal to the switch circuit of the road where the moving object is located, and the street light can be controlled to keep working for a certain period of time through the first resistor, the switch circuit and the relay. That is, it can be realized that the sound occurring on one side of the road can only control the street lights on the side of the road where the sound is located to keep working, but cannot control the street lights on the other side of the road. When there is an object on the side of the road passing by, the sound emitted during the movement of the object can control the lighting of the street light on the side of the road, instead of controlling the lighting of the street light on the opposite side of the road, which can save energy.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art.

FIG. 1 shows a circuit diagram of a street lamp control device provided by an embodiment of the present application;

FIG. 2 shows a schematic appearance diagram of a street lamp control device provided by an embodiment of the present application.

Detailed ways

The present application discloses a street lamp control device, and those skilled in the art can learn from the content of this document and appropriately improve the process parameters to achieve. It should be particularly pointed out that all similar substitutions and modifications are obvious to those skilled in the art, and they are deemed to be included in the present application. The structure and application of the present application have been described through the preferred embodiments, and it is obvious that relevant persons can make changes or appropriate changes and combinations of the structures and applications described herein without departing from the content, spirit and scope of the present application to achieve and Apply the technology of this application.

The existing voice-activated street lights will light up as long as a sound signal with a certain intensity or above is collected from the street lights. This may cause the same sound to be collected by the street lights on both sides of the road, and the intensity of the sound can control the lighting of the street lights on both sides of the road. But in most cases, an object will only move on one side of the road at a certain moment, and rarely an object will move on both sides of the road at the same moment. Therefore, it is only necessary to control the street lights on one side of the road where the object is located to keep working, and there is no need for the street lights on both sides of the road to keep working, which can greatly save energy.

As shown in FIG. 1 , a street lamp control device provided by the present application includes: a microphone 100 , a band-pass filter 200 , a band-stop filter 300 , a main control chip 400 , a first resistor R1 , a switch circuit 500 and a relay 600 ;

The output end of the above-mentioned microphone 100 is connected with the input end of the above-mentioned bandpass filter 200;

The output end of the above-mentioned band-pass filter 200 is connected with the input end of the above-mentioned band-stop filter 300, and the output end of the above-mentioned band-stop filter 300 is connected with the signal input end of the main control chip 400;

The signal output end of the main control chip 400 is connected to the base of the transistor of the switch circuit 500, the collector of the transistor of the switch circuit 500 is connected to one end of the control side of the relay 600, and the other end of the control side of the relay 600 is connected to the control side. One end of the first resistor R1 is connected, the other end of the first resistor R1 is a ground terminal, and the operation side of the relay 600 is connected to a street lamp.

It should be understood that the microphone 100 can collect sound signals in a fixed direction, and the collected sound signals can be filtered through the band-pass filter 200 and the band-stop filter 300 . The main control chip 400 can perform signal processing on the filtered sound signal, and when it is determined according to the result of the signal processing that the street lamp on the side can be controlled to maintain the working state, the main control chip 400 can output the lighting control signal, through the switch circuit 500 and the relay. 600 controls the street lights on this side to keep working.

Optionally, the switch circuit 500 of the present application may be selected and designed according to the relevant parameters of the street lamp and the relay 600 , which is not limited in the present application.

Optionally, the model of the main control chip 400 can be selected according to actual needs, such as S905D2, A311D or RK3399. The application does not limit the model of the main control chip 400 .

Optionally, the model of the microphone 100 may be an appropriate model according to actual needs. For example, it may be BUM4022L-RC8 or BUM6027L-RC-HF. The application does not limit the model of the microphone 100 .

Optionally, in a specific embodiment, the above-mentioned device further includes: an electrostatic discharge protection device D1, one end of the above-mentioned electrostatic discharge protection device D1 is connected to the output end of the above-mentioned microphone 100, and the other end is a ground terminal.

It should be understood that the electrostatic discharge protection device D1 can protect the circuit when the voltage is too large, and can also protect the circuit from being affected by a surge current.

Optionally, the electrostatic discharge protection device D1 may be a varistor, a transient suppression diode, or other feasible electrostatic discharge protection device D1, which is not limited in this application.

Optionally, in a specific implementation manner, the above-mentioned apparatus further includes: a second resistor R2, and the output terminal of the above-mentioned band-stop filter 300 is connected to the signal input terminal of the above-mentioned main control chip 400 through the above-mentioned second resistor R2.

It should be understood that the second resistor R2 can play the role of impedance matching.

Optionally, the selection of the second resistor R2 may be selected according to the total resistance of the main control chip 400 , and the resistance value of the second resistor R2 may be equal to the total resistance value of the main control chip 400 .

Optionally, in a specific implementation manner, the bandpass filter 200 includes: a third resistor R3, a fourth resistor R4, a first capacitor C1 and a second capacitor C2, wherein one end of the third resistor R3 is connected to the One end of the first capacitor C1 is connected, the other end of the first capacitor C1 is connected to one end of the fourth resistor R4 and is connected to one end of the second capacitor C2, and the other end of the third resistor R3 is the band pass filter. The input end of 200, the end of the second capacitor C2 connected to the first capacitor C1 is the output end of the band-pass filter 200, the other end of the fourth resistor R4 and the other end of the second capacitor C2 are grounded end.

It should be understood that the frequency band of the bandpass filter 200 may include the frequency band of the target sound signal. For example, the frequency bands of tire noise and whistle sound of the motor vehicle may be included, and of course the frequency bands of other sound signals may also be included. For example, it may include the frequency band of the sound of a person walking, the frequency band of the sound of a person speaking, or the frequency band of the sound produced when other objects move.

Optionally, the band-pass filter 200 can be designed with an appropriate band-pass filter 200 according to actual needs, which is not limited in this application.

Optionally, in a specific implementation manner, the above-mentioned band-stop filter 300 includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5, wherein , one end of the above-mentioned fifth resistor R5 is the input end of the above-mentioned band-stop filter 300, the input end of the above-mentioned band-stop filter 300 is connected with the output end of the above-mentioned band-pass filter 200 and is connected with one end of the above-mentioned fourth capacitor C4, The other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and is connected to one end of the third capacitor C3, the other end of the third capacitor C3 is the ground terminal, and the other end of the fourth capacitor C4 is connected to the above One end of the fifth capacitor C5 is connected to one end of the seventh resistor R7, the other end of the seventh resistor R7 is the ground terminal, the other end of the fifth capacitor C5 is connected to the other end of the sixth resistor R6, the above The end of the sixth resistor R6 connected to the fifth capacitor C5 is the output end of the band-stop filter 300 .

It should be understood that the band-stop filter 300 can filter out sound signals other than the target sound signal, so as to obtain the target sound signal. For example, sound signals other than the tire noise or whistle of the motor vehicle can be filtered out, so as to obtain the tire noise signal or the whistle sound signal of the motor vehicle.

Optionally, the band-stop filter 300 can be designed with an appropriate band-stop filter 300 according to actual needs, which is not limited in this application.

Optionally, the band-stop filter 300 and the band-pass filter 200 may be connected to form a dual-band-pass filter. For example, the output of the bandpass filter 200 may be connected to the input of the bandstop filter 300 to form a dual bandpass filter.

Optionally, in a specific implementation manner, the above-mentioned switch circuit 500 includes: an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a sixth capacitor C6, a seventh capacitor C7, and a transistor Q1;

One end of the above-mentioned eighth resistor R8 is the control input end of the above-mentioned switch circuit 500. The control input end of the above-mentioned switch circuit 500 is connected to the signal output end of the above-mentioned main control chip 400 and is connected to one end of the above-mentioned sixth capacitor C6. The other end of the capacitor C6 is the ground terminal, the other end of the above-mentioned eighth resistor R8 is connected to the base of the above-mentioned transistor Q1 and is connected to one end of the above-mentioned ninth resistor R9, the other end of the above-mentioned ninth resistor R9 is the ground terminal, and the above-mentioned first One end of the tenth resistor R10 is an external power connection terminal, and is connected to one end of the seventh capacitor C7, the other end of the seventh capacitor C7 is the ground terminal, and the other end of the tenth resistor R10 is connected to the control side of the relay 600. The input terminal is connected to and connected to the collector of the above-mentioned transistor Q1, and the emitter of the above-mentioned transistor Q1 is the ground terminal.

It should be understood that the lighting control signal output by the main control chip 400 can be input into the switching circuit 500 through the control input terminal of the switching circuit 500, and the lighting control signal can control the transistor Q1 in the switching circuit 500 to be in an off state, so that the current can be controlled It flows into the control input terminal of the relay 600, and then the street lamp can be controlled to keep the working state. For example, when the main control chip 400 outputs a low level, the transistor Q1 can be in an off state, causing the collector potential of the transistor Q1 to increase, that is, the potential of the control input terminal of the relay 600 to increase, and the street lamp can be controlled in the working state. .

Optionally, the model of the relay 600 can be selected according to the model of the street lamp, and the model of the relay 600 can be selected according to the actual situation. Devices with similar functions to the relay 600 belong to optional embodiments of the present application.

Optionally, in a specific implementation manner, the above-mentioned microphone 100 is a microphone array.

It should be understood that the directional sound pickup effect of the microphone array is stronger than that of ordinary microphones, and it is a preferred embodiment of the present application to use the microphone array for directional sound pickup.

Optionally, an appropriate microphone array can be selected according to actual needs. For example, the microphones may be selected to be a ring-arranged microphone array, or the microphones may be selected to be a linearly-arranged microphone array. Any feasible microphone array is an optional implementation manner of this application, which is not limited in this application.

Optionally, one switch circuit 500 may be connected to one relay 600, or may be connected to multiple relays 600, which is not limited in this application.

As shown in FIG. 2 , optionally, in a specific implementation manner, the above-mentioned apparatus further includes: a sound-receiving cover 700 , and the above-mentioned microphone array 800 is arranged inside the above-mentioned sound-receiving cover 700 .

It should be understood that the sound collecting cover 700 can isolate other sound signals around the microphone array 800 except the direction of the microphone array 800 , so that the microphone array 800 can acquire sound signals in the target direction more accurately. For example, the direction of the arrow in Fig. 2 is represented as acquiring the sound of a certain fixed area outside.

Optionally, the size and shape of the sound collecting cover 700 may be designed according to the microphone array 800 or the actual situation, which is not limited in this application. Any feasible size and shape are optional embodiments of the present application.

Optionally, the present application does not limit the fixing manner of the sound-receiving cover 700 and the microphone array 800 , and any feasible fixing manner is an optional embodiment of the present application.

Optionally, in a specific implementation manner, the above-mentioned sound-receiving cover 700 faces the direction of incoming vehicles on the side of the road where the above-mentioned microphone array 800 is located.

Optionally, the sound-receiving cover 700 and the microphone array 800 may be arranged on the side of the road or on a street lamp.

The above are only the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (9)

1. A street lamp control device, comprising: the device comprises a microphone, a band-pass filter, a band-stop filter, a main control chip, a first resistor, a switch circuit and a relay;

the output end of the microphone is connected with the input end of the band-pass filter;

the output end of the band-pass filter is connected with the input end of the band-stop filter, and the output end of the band-stop filter is connected with the signal input end of the main control chip;

the signal output end of the main control chip is connected with the base electrode of the triode of the switch circuit, the collector electrode of the triode of the switch circuit is connected with one end of the control side of the relay, the other end of the control side of the relay is connected with one end of the first resistor, the other end of the first resistor is a grounding end, and the action side of the relay is connected with the street lamp.

2. The street light control device according to claim 1, characterized in that the device further comprises: and one end of the electrostatic discharge protection device is connected with the output end of the microphone, and the other end of the electrostatic discharge protection device is a grounding end.

3. The street light control device according to claim 1, characterized in that the device further comprises: and the output end of the band elimination filter is connected with the signal input end of the main control chip through the second resistor.

4. The streetlamp control apparatus of claim 1, wherein the band-pass filter comprises: third resistance, fourth resistance, first electric capacity and second electric capacity, wherein, the one end of third resistance with the one end of first electric capacity is connected, the other end of first electric capacity with the one end of fourth resistance is connected and with the one end of second electric capacity is connected, the other end of third resistance does band pass filter's input, the second electric capacity with the one end that first electric capacity is connected does band pass filter's output, the other end of fourth resistance with the other end of second electric capacity is the earthing terminal.

5. The streetlamp control apparatus of claim 1, wherein the band-stop filter comprises: the band-stop filter comprises a fifth resistor, a sixth resistor, a seventh resistor, a third capacitor, a fourth capacitor and a fifth capacitor, wherein one end of the fifth resistor is the input end of the band-stop filter, the input end of the band-stop filter is connected with the output end of the band-pass filter and is connected with one end of the fourth capacitor, the other end of the fifth resistor is connected with one end of the sixth resistor and is connected with one end of the third capacitor, the other end of the third capacitor is a grounding end, the other end of the fourth capacitor is connected with one end of the fifth capacitor and is connected with one end of the seventh resistor, the other end of the seventh resistor is a grounding end, the other end of the fifth capacitor is connected with the other end of the sixth resistor, and the end connected with the fifth capacitor is the output end of the band-stop filter.

6. The streetlamp control apparatus according to claim 1, wherein the switching circuit comprises: the circuit comprises an eighth resistor, a ninth resistor, a tenth resistor, a sixth capacitor, a seventh capacitor and a triode;

the one end of eighth resistance does switch circuit's control input, switch circuit's control input with main control chip's signal output part connect and with the one end of sixth electric capacity is connected, the other end of sixth electric capacity is the earthing terminal, the other end of eighth resistance with the base of triode is connected and with the one end of ninth resistance is connected, the other end of ninth resistance is the earthing terminal, the one end of tenth resistance is the external power source link, and with the one end of seventh electric capacity is connected, the other end of seventh electric capacity is the earthing terminal, the other end of tenth resistance with the input of the control side of relay is connected and with the collecting electrode of triode is connected, the transmission earthing terminal of triode is very.

7. The streetlamp control apparatus of claim 1, wherein the microphone is a microphone array.

8. The street light control device as claimed in claim 7, wherein the device further comprises: the microphone array is arranged inside the sound collecting cover.

9. The streetlamp control apparatus of claim 8, wherein the sound-collecting cover faces the direction of the incoming vehicle on the road side where the microphone array is located.

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