CN202519900U

CN202519900U - Electronic music ladder

Info

Publication number: CN202519900U
Application number: CN2012201062849U
Authority: CN
Inventors: 毛丽民; 朱培逸; 刘叔军; 高珏
Original assignee: Changshu Institute of Technology
Current assignee: Changshu Institute of Technology
Priority date: 2012-03-20
Filing date: 2012-03-20
Publication date: 2012-11-07
Anticipated expiration: 2022-03-20

Abstract

The utility model discloses an electronic music ladder which is characterized in that each step of the music ladder is set to be different notes and is provided with a pressure sensor, when a pedestrian passes by the steps, a singlechip detects a signal generated by each pressure sensor, if the detected signal is stronger, the note sound generated by the music ladder is larger, and if the detected signal is weaker, the note sound generated by the music ladder is smaller. When many people pass by the steps, each step can continuously generate different notes, and a beautiful music can be played due to the generation of different notes.

Description

The electronic music ladder

Technical field

The utility model relates to a kind of electronic music ladder, belongs to microchip technology field.

Background technology

The people that have been accustomed to modernized city life like mostly taking a lift and are unwilling stair climbing.Except being does not want to take time, takes the muscle power, still main because think that stair climbing is very uninteresting, dull.Experience the motion pleasant sensation that music is brought when this design is intended to make people's up/down steps, let people be ready to select stair more rather than do elevator, can promote healthyly, can save the energy that elevator consumes again.

At present China is second potential energy source producing country and the country of consumption in the world.The growth of energy supply, for socio-economic development provides important support, the quick growth of energy-consuming has also brought very big test to China simultaneously, and global half the energy is by building consumption.Elevator is as ancillary facility important in the urban construction, and its power consumption is particularly noticeable.

The utility model content

Fast for solving urban life rhythm; People select elevator and the custom of stair is reluctant to walk by portion; The utility model provides a kind of electronic music ladder; Whether have the pedestrian to pass by on the variation detection step through pressure sensor signal, single-chip microcomputer is controlled the broadcast of music ladder note according to detected signal.

For solving the problems of the technologies described above, said electronic music ladder comprises: single chip circuit, power circuit, audio frequency input circuit, audio power amplifier circuit, pressure sensor amplifying circuit and external memory storage circuit.Wherein, The input and the battery of power circuit join; The power pins of output and single chip circuit, audio frequency input circuit power supply, audio power amplifier circuit power supply, sensor detect with the amplifying circuit power supply and join, and audio frequency input circuit and single chip circuit join, and audio power amplifier circuit and single chip circuit join; Pressure sensor amplifying circuit and single-chip microcomputer join, and external memory storage circuit and single chip circuit join.

Preferred SPCE061A single-chip microcomputer is as main control chip.

The utility model power circuit is made up of voltage stabilizing chip SPY0029, capacitor C 1-C4 and protection diode D1, D2.Power positive end is connected with the positive pole of capacitor C 1, C2, D1 and the input of SPY0029, and the output of SPY0029 is connected with the positive pole of capacitor C 3, C4 and D2 and is drawn to circuit supply by R1-R6, and the negative pole of each element is connected with the negative terminal of power supply.

The utility model audio frequency input circuit is made up of electret microphone, resistance R 7-R13 and capacitor C 5-C13.1 pin of electret microphone is connected with the end of supplying resistance R8 and isolation capacitance C6; The other end of R8 is connected with filter capacitor C5, current-limiting resistance R7; The other end of capacitor C 6 is connected with an end of resistance R 10, and the other end of R10 is connected with the positive pole of R11, C8, C9, and C8 is connected with the other end of C9 and receives AVSS1; Resistance R 11 is connected with an end of capacitor C 7, and the other end of C7 is connected with 2 pin of electret microphone.

The utility model audio power amplifier circuit is made up of chip SPY0030, capacitor C 13-C17, resistance R 14 and potentiometer R15.DAC1 is connected with 1 pin of potentiometer Rp15 and the end of high-frequency filter capacitor C15, the end of DAC2 connecting resistance R14, resistance R 14 another termination capacitor C 15; Receive 3 pin of Rp15,2 pin of Rp15 are connected with C16, and the other end of C16 is connected to positive input terminal 5 pin of chip SPY0030; 7,8 pin of SPY0030 connect the positive pole of power vd DH and filter capacitor C13, C14; The minus earth of C13, C14,3 pin of SPY0030 are that the power supply lower margin links to each other with ground, and 6 pin feed back to negative input end 4 pin and connect the end of decoupling capacitor C17; The other end ground connection of C17,1,2 pin of SPY0030 are output.

The utility model external memory storage circuit is made up of high-performance serial FLASH memory SPR4096, resistance R 16, R17, capacitor C 18-C20 and diode D3, and the internal electric source energization pins of chip SPR4096 and I/O energization pins VDDQ connect the 3.3V power supply, VSS, the equal ground connection of VSSQ; The SDA pin links to each other with an end of resistance R 16; The other end is connected to the P3 pin of single-chip microcomputer, and VDDI is connected with the negative electrode of diode D3, and the anode of D3 connects power supply; CF7 is connected to the control line that label is MEM; CF2-0 all connects high level, and RES connects electrify restoration circuit and links to each other another termination power of R17 with the end of R17 and the end of C20 respectively; The other end ground connection of C20, clock pin SCK is connected to the P4 mouth of single-chip microcomputer.

The utility model pressure sensor amplifying circuit is made up of silicon pressure sensor, integrated transporting discharging LM358 resistance R 18-R30 and capacitor C 22, C23.1 pin of pressure sensor and 2 pin connect power supply and ground respectively, and 3 pin connect 2 pin of Rp18, and 1 pin of Rp18 connects power supply, 3 pin ground connection; The two ends of capacitor C 22 connect power supply and ground respectively, and R23 and Rp24 are serially connected with between power supply and the ground, and slip pin 2 connects the end of R25,2 pin of another termination LM358 of R25; 4 of pressure sensor is connected to the end of R26, and the other end is connected to 3 pin of LM358, and the two ends of R27 connect 1,2 pin of LM358 respectively, and 8 pin connect power supply; 4 pin ground connection, the two ends of R28 connect 1,5 pin of LM358 respectively, and the two ends of R30 connect 6,7 pin of LM358 respectively; R29 one end ground connection, 6 pin of another termination LM358, and export by 7 pin.

The utility model electronic music ladder can produce the music that makes the people happy when having the pedestrian to use, make the pedestrian be more prone to use electronic music ladder rather than elevator, thereby play the effect of energy conservation, and the electronic music ladder can play the effect of body-building in addition.

Description of drawings

Fig. 1 is the theory diagram of the utility model

Fig. 2 is the utility model power circuit diagram

Fig. 3 is the utility model audio frequency input circuit figure

Fig. 4 is the utility model audio power amplifier circuit figure

Fig. 5 is the utility model external memory storage circuit diagram

Fig. 6 is the utility model pressure sensor amplification circuit diagram

The specific embodiment

Below in conjunction with Figure of description the utility model is further specified

Each step of music ladder all is equipped with pressure sensor; Variation through pressure sensor signal; Whether step on have pedestrian pass by, pressure sensor joins with the signal amplification and with single-chip microcomputer through amplifying circuit if detecting; Single-chip microcomputer is controlled the broadcast of music ladder note according to detected signal.According to designing requirement, select for use the SPCE061A single-chip microcomputer as main control chip, because being SOC, this chips use less peripheral components just to realize minimum system, cooperate the voice function library can realize phonetic function, good reliability and be easy to expansion and low-power consumption.

Fig. 1 is the theory diagram of the utility model, and whether pressure sensor is used to detect has the pedestrian to pass by on the step, and amplifying circuit amplifies the signal of pressure sensor.The SPCE061A single-chip microcomputer is as main control chip, and the size of the signal that transmits according to amplifying circuit is controlled the broadcast of music ladder sound of musical instrument.Detected pressure is big, just plays stress, and detected pressure is little, just plays schwa, deposits the piano voice that records in advance in the external memory storage.When many people walked on step, each step will constantly produce different notes, and the generation of different notes will be played out beautiful music.

Fig. 2 is the utility model power circuit diagram, the power circuit module analysis: direct current 5V power supply is supplied power to whole system through producing 3.3V voltage behind the SPY0029.SPY0029 uses CMOS technology, has characteristics such as quiescent current is low, the linearity adjustment is outstanding.VDDH3 among the figure is the input and output pin I/O power supply of single-chip microcomputer, and VDD is a digital power, and VDD_A is an analog power.VSS is digitally, and AVSS1 is simulation ground, and AVSS2 is the ground wire of audio output circuit.

Fig. 3 is the utility model audio frequency input circuit figure; VMIC among the figure provides the power supply of microphone, and AVSS1 is the simulation ground of system, and AGC is a phonetic entry automatic gain control pin; MICP is the forward input pin of microphone input; MICN is the negative sense input pin of microphone input, and the output pin of MICOUT first amplifier, OPI are the input pins of second amplifier.

Advantages such as Fig. 4 is the utility model audio power amplifier circuit figure, uses the SPY0030 power amplifier among the figure, compares with LM386, and it is wide to have operating voltage range, and power output is big.

Fig. 5 is the utility model external memory storage circuit diagram, and the SPR4096 module is one to extend out the serial FLASH storage chip, and the 3.3V power supply is divided into 256 sectors, and each sector is 2K-byte.The also built-in SRAM of a 4K * 8bit.SPR4096 presses serial interface mode work, all connect high level to CF2-0, and CF7 chooses FLASH during for low level; High level is to choose SRAM, and R16 is the communication current-limiting resistance, and D3 is the power protection diode; Prevent that power supply from connecing anti-damage internal circuit; SCK, SDA are data line, are respectively clock line and data wire, are used to write and read data.

Fig. 6 is the utility model pressure sensor amplification circuit diagram, and circuit is converted to pressure the signal of telecommunication and amplifies shaping by silicon pressure sensor, because signal is faint; So the 7 pin output of LM358 is arranged after the two poles of the earth voltage amplification via the LM358 formation, change Rp17 and can regulate reference voltage, make circuit when sensor is not stressed, be output as 0; R25 and R28 are feedback resistance, and capacitor C 22, C23 are filter capacitor, do the time spent when pressure sensor is under pressure; The electric bridge disequilibrium, the voltage of 3 electricity and 4 electricity are unequal, because 3 point voltages are fixed by Rp17; So voltage difference will be exported pressure signal after the linear amplification of LM358 by 4 outputs.

Claims

1. electronic music ladder; Form by single chip circuit, power circuit, audio frequency input circuit, audio power amplifier circuit, pressure sensor amplifying circuit and external memory storage circuit; It is characterized in that the input and the battery of power circuit join, the power pins of output and single chip circuit, audio frequency input circuit power supply, audio power amplifier circuit power supply and sensor detect with the amplifying circuit power supply and join; Audio frequency input circuit and single chip circuit join; Audio power amplifier circuit and single chip circuit join, and pressure sensor amplifying circuit and single-chip microcomputer join, and external memory storage circuit and single chip circuit join.

2. according to the said electronic music ladder of claim 1, it is characterized in that, select for use single-chip microcomputer SPCE061A as main control chip.

3. according to the said electronic music ladder of claim 1, it is characterized in that said power circuit is made up of voltage stabilizing chip SPY0029, capacitor C 1-C4 and protection diode D1, D2; Power positive end is connected with the positive pole of capacitor C 1, C2, D1 and the input of SPY0029, and the output of SPY0029 is connected with the positive pole of capacitor C 3, C4 and D2 and is drawn to circuit supply by R1-R6, and the negative pole of each element is connected with the negative terminal of power supply.

4. according to the said electronic music ladder of claim 1, it is characterized in that said audio frequency input circuit is made up of electret microphone, resistance R 7-R13 and capacitor C 5-C13; 1 pin of electret microphone is connected with the end of supplying resistance R8 and isolation capacitance C6; The other end of R8 is connected with filter capacitor C5, current-limiting resistance R7; The other end of capacitor C 6 is connected with an end of resistance R 10, and the other end of R10 is connected with the positive pole of R11, C8, C9, and C8 is connected with the other end of C9 and receives AVSS1; Resistance R 11 is connected with an end of capacitor C 7, and the other end of C7 is connected with 2 pin of electret microphone.

5. according to the said electronic music ladder of claim 1, it is characterized in that said audio power amplifier circuit is made up of chip SPY0030, capacitor C 13-C17, resistance R 14 and potentiometer R15; DAC1 is connected with 1 pin of potentiometer Rp15 and the end of high-frequency filter capacitor C15, the end of DAC2 connecting resistance R14, resistance R 14 another termination capacitor C 15; Receive 3 pin of Rp15,2 pin of Rp15 are connected with C16, and the other end of C16 is connected to positive input terminal 5 pin of chip SPY0030; 7,8 pin of SPY0030 connect the positive pole of power vd DH and filter capacitor C13, C14; The minus earth of C13, C14,3 pin of SPY0030 are that the power supply lower margin links to each other with ground, and 6 pin feed back to negative input end 4 pin and connect the end of decoupling capacitor C17; The other end ground connection of C17,1,2 pin of SPY0030 are output.

6. according to the said electronic music ladder of claim 1, it is characterized in that said external memory storage circuit is made up of high-performance serial FLASH memory SPR4096, resistance R 16, R17, capacitor C 18-C20 and diode D3; The internal electric source energization pins of chip SPR4096 and I/O energization pins VDDQ connect the 3.3V power supply, VSS, the equal ground connection of VSSQ, and the SDA pin links to each other with an end of resistance R 16; The other end is connected to the P3 pin of single-chip microcomputer, and VDDI is connected with the negative electrode of diode D3, and the anode of D3 connects power supply; CF7 is connected to the control line that label is MEM; CF2-0 all connects high level, and RES connects electrify restoration circuit and links to each other another termination power of R17 with the end of R17 and the end of C20 respectively; The other end ground connection of C20, clock pin SCK is connected to the P4 mouth of single-chip microcomputer.

7. according to the said electronic music ladder of claim 1, it is characterized in that said pressure sensor amplifying circuit is made up of silicon pressure sensor, integrated transporting discharging LM358 resistance R 18-R30 and capacitor C 22, C23; 1 pin of pressure sensor and 2 pin connect power supply and ground respectively, and 3 pin connect 2 pin of Rp18, and 1 pin of Rp18 connects power supply, 3 pin ground connection; The two ends of capacitor C 22 connect power supply and ground respectively, and R23 and Rp24 are serially connected with between power supply and the ground, and slip pin 2 connects the end of R25,2 pin of another termination LM358 of R25; 4 of pressure sensor is connected to the end of R26, and the other end is connected to 3 pin of LM358, and the two ends of R27 connect 1,2 pin of LM358 respectively, and 8 pin connect power supply; 4 pin ground connection, the two ends of R28 connect 1,5 pin of LM358 respectively, and the two ends of R30 connect 6,7 pin of LM358 respectively; R29 one end ground connection, 6 pin of another termination LM358, and export by 7 pin