CN103354095B - Music stairs and musical sound thereof play implementation method - Google Patents

Abstract

The present invention provides a music staircase and a method for realizing music playing thereof, wherein the music staircase includes a plurality of steps, a host and an acceleration sensor, a capacitive sensing element and a sub-processor installed in each step, and the sub-processor is based on the acceleration sensor and The sensing signal of the capacitive sensing element judges stepping and transmits it to the host through the CAN bus. The host includes a host processor and a music playing module. The host processor sends a control command according to the stepping judgment signal, and the music playing module plays music according to the control command. The invention can effectively detect stepping on and make a sound, improve the reliability of the musical stairs, greatly reduce misoperations, and thus generate better user experience.

Description

Musical stairs and its realization method for music playing

technical field

The invention relates to the field of stairs, in particular to a musical staircase capable of producing sounds according to people's stepping on them and a method for realizing music playing thereof.

Background technique

The Musical Staircase is an installation that makes stairs provide a playful musical experience. The installation is triggered as visitors walk down the stairs, and their steps trigger the sound of music, the purpose of which is to remind visitors of the importance of very simple actions and experiences that we often underestimate.

There are two technical schemes adopted by the musical staircase in the prior art: an infrared tube-to-tube scheme and a pressure-sensitive scheme. In the infrared pairing tube scheme, infrared emitting tubes and receiving tubes are installed on both sides of the stairs. The infrared emitting tube emits pulsed infrared light, and when there is no shield, the receiving tube receives the infrared light, which can determine that no one is stepping on it. When the user's feet block the infrared light and the receiving tube cannot receive the infrared light, it is judged that someone is stepping on it and drives the music module to play. In the pressure-sensing scheme, the pressure sensor is laid under the steps. When a person steps on the steps, the pressure change sensed by the pressure sensor will start the playback of the music module.

However, in the infrared tube solution, it is susceptible to interference from sunlight and strong light. In places where strong light appears, it is easy to cause no noise or noise when stepping on it, and it is impossible to completely block the infrared light when the high-heeled shoes are stepping on it. Misoperation; In the pressure-sensitive technology solution, the pressure sensor is easily damaged and there is no sound.

Contents of the invention

Aiming at the defects and deficiencies in the prior art, the present invention aims to provide an improved musical staircase and its method for playing music, which can effectively detect stepping on and pronounce sounds, improve the reliability of musical staircases, and greatly reduce malfunctions. resulting in a better user experience.

In order to achieve the above object, the present invention proposes a musical staircase, including a plurality of steps, a host and an acceleration sensor, a capacitive sensing element and a sub-processor installed in each step, and the sub-processor is based on the acceleration sensor and the capacitive sensing element. The sensing signal judges stepping and transmits it to the host through the system bus CAN bus. The host includes a host processor and a music playing module. The host processor sends a control command according to the stepping judgment signal, and the music playing module plays music according to the control command.

Further, the acceleration sensor senses the user's pedaling action and strength and outputs a response signal, the capacitive sensing element senses the proximity of the user's limbs and outputs a limb proximity signal, and the sub-processor is based on the simultaneous occurrence of the aforementioned two signals It is determined that stepping is currently present.

Further, the host processor controls the playing strength of the music tone according to the stepping intensity sensed by the acceleration sensor.

Further, the host computer also includes a display module connected to the host processor and used for sending out light display signals according to the control command.

Further, the music playing module has a MIDI interface, through which the control command from the host processor is received to play the music.

Another aspect of the present invention proposes a method for realizing music playing of musical stairs, comprising the following steps:

Use the acceleration sensor to sense the user's pedaling action and strength, and output a response signal;

Use the capacitive sensing element to sense the proximity of the user's limbs and output a signal of the proximity of the limbs;

The processor in the steps judges that there is trampling according to the simultaneous occurrence of the aforementioned two response signals, and transmits the trampled judgment result to the host through CAN; and the host sends out a control command according to the trampled judgment result, and the music playing module plays the music according to the control command.

Further, the host computer also includes a display module connected to the processor of the host computer, and sends out a light display signal according to the control command.

Further, the host controls the playing strength of the music tone according to the stepping intensity sensed by the acceleration sensor.

It can be seen from the above technical solution of the present invention that the beneficial effect of the present invention is to realize the judgment of the actual stepping on the stair steps by using the acceleration sensor to judge the occurrence of vibration and combining the capacitive sensing element to judge the proximity state of the human body, and through the CAN bus. The results are transmitted to the host, and the host controls the playback of the music. The system is stable and reliable, the detection is timely, and the possibility of misoperation is greatly reduced, resulting in a better user experience.

Description of drawings

Fig. 1 is a schematic diagram of the circuit principle of the step part in a preferred embodiment of the present invention.

Fig. 2 is the schematic diagram of the circuit principle of the host computer part in the preferred embodiment of the present invention

detailed description

In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

As shown in Figure 1-2, according to a preferred embodiment of the present invention, the musical staircase of the present embodiment comprises a plurality of steps, and host computer and the accelerometer that is installed in each step, capacitive sensing element and sub-processor, sub-processor According to the induction signal of the acceleration sensor and the capacitive sensing element, the pedaling is judged and transmitted to the host through the system bus CAN bus. The host includes a host processor and a music playback module. Play tones.

An acceleration sensor is an electronic component that can sense and measure the acceleration of an object in space. It can sense the vibration of an object and measure its strength, such as piezoelectric acceleration sensors, piezoresistive acceleration sensors, and capacitive acceleration sensors. The acceleration sensor in this embodiment is used to sense the pedaling action and strength of the user and output a response signal.

Capacitive sensing elements can be used to sense nearby objects. When an object approaches its sensing pole (antenna), the sensing element can output a corresponding response signal. In this embodiment, the capacitive sensing element is used to sense the approach of the limb of the user and output a response signal of the approach of the limb.

The sub-processor judges that there is currently trampling based on the simultaneous occurrence of the aforementioned two signals: the sub-processor checks the induction signal of the acceleration sensor, and when it finds that an induction signal exceeding a certain intensity occurs, it continues to check whether the capacitive sensing element senses that the limb is approaching and outputs Limb proximity signal, if there is a limb proximity signal, it is determined that someone stepped down the steps, if there is no limb proximity signal, it is judged that there is interference vibration, not the user's stepping on. That is to say, the determination of stepping on the steps requires that the acceleration sensor senses a certain vibration and the capacitive sensing element senses that the limbs are approaching at the same time.

After determining that someone has stepped on the steps, the limb proximity signal can also be used to determine whether the stepper's feet have left the steps. At this time, the sub-processor constantly checks whether the capacitive sensing element has a limb proximity signal, and if the limb proximity signal disappears, it is determined that the pedaler's foot has left the step.

In this embodiment, CAN bus is used for communication between each step and the host. Since CAN has high reliability and good error detection capability, its application in this embodiment can ensure smooth information transmission.

The sub-processor transmits the stepping judgment result to the host through the CAN bus. Referring to Figure 2, the host includes a host processor, a music playing module and a display module, the host processor sends out a control command according to the stepping judgment signal, the music playing module plays music according to the control command, and the display module sends out a light display signal according to the control command , to enhance the synergistic effect of sound and light, and improve the user's physical examination.

Preferably, the host processor controls the playing strength of the music tone according to the stepping intensity sensed by the acceleration sensor.

The tone playing module has a MIDI interface, through which the control command from the host processor is received to play the tone.

To sum up, the technical solution of this method uses the acceleration sensor to judge the occurrence of vibration and combines the capacitive sensing element to judge the approaching state of the human body to realize the judgment of the actual stepping on the stairs, and transmit the judgment result to the host through the CAN bus. The host is used to control the playback of music, the system is stable and reliable, the detection is timely, and the possibility of misoperation is greatly reduced, which can produce a better user experience.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (1)

1. A method for realizing music playing of musical stairs, characterized in that, based on the following stairs, the stairs include a plurality of steps, the host computer and acceleration sensors, capacitive sensing elements and sub-processors installed in each step, the sub-processors The processor judges the stepping according to the induction signals of the acceleration sensor and the capacitive sensing element and transmits it to the host through the system bus CAN bus. The host includes a host processor and a music playing module. Play music according to the control command; Wherein the acceleration sensor senses the pedal action and strength of the user and outputs a response signal, the capacitive sensing element senses the proximity of the user's limbs and outputs a limb proximity signal, and the sub-processor is based on the aforementioned response signal and the limb proximity signal. At the same time, it is determined that there is currently stepping; wherein the host processor controls the playing strength of the music tone according to the stepping intensity sensed by the acceleration sensor; The host also includes a display module connected to the host processor and used for sending out light display signals according to the control command; Wherein the musical tone playing module has a MIDI interface, receives commands from the host processor through the MIDI interface, and plays the musical tone; The implementation method includes the following steps: Use the acceleration sensor to sense the user's pedaling action and strength, and output a response signal; Use the capacitive sensing element to sense the proximity of the user's limbs and output a signal of the proximity of the limbs; The processor in the step judges that there is trampling according to the simultaneous occurrence of the aforementioned response signal and the limb proximity signal, and transmits the stampede judgment result to the host computer through CAN; and The host sends out a control command according to the stepping judgment result, and the tone playing module plays the tone according to the control command; the host controls the playing strength of the tone playback according to the stepping intensity sensed by the acceleration sensor.