CN203775180U - Resistance-type touch module and non-stringed musical instrument detecting system - Google Patents
Resistance-type touch module and non-stringed musical instrument detecting system Download PDFInfo
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- CN203775180U CN203775180U CN201420129798.5U CN201420129798U CN203775180U CN 203775180 U CN203775180 U CN 203775180U CN 201420129798 U CN201420129798 U CN 201420129798U CN 203775180 U CN203775180 U CN 203775180U
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Abstract
The utility model provides a resistance-type touch module comprising a substrate, an input module, an output module, and a touch detection circuit. The input module comprises a first power pin and an input pin. The output module comprises a second power pin, an output pin, and a ground pin. The input end of the touch detection circuit is connected with the input pin. The output end of the touch detection circuit is connected with the output pin. When a closed loop is formed by the first power pin, the input pin, and an external conductor through wires, the output pin of the output module outputs first logic level. When the closed loop formed by the first power pin, the input pin, and an external conductor through wires is disconnected, the output pin of the output module outputs second logic level. The resistance-type touch module is fast in response to the input module, and not only guarantees the normal operation of the circuit, but also greatly increases the response speed of the circuit.
Description
Technical field
The utility model relates to circuit field, relates in particular to a kind of resistive touch module and without string qin detection system.
Background technology
At present, electronic product can be realized its function by touch, and usually, circuit is slower to the response speed of touch modules or touch-screen or membrane keyboard, therefore can not guarantee the normal work of product.
Therefore, be necessary prior art to do further improvement.
Utility model content
An object of the present utility model is to provide a kind of resistive touch module.
It is a kind of without string qin detection module that another object of the present utility model is to provide.
For reaching one of aforementioned object, a kind of resistive touch module of the utility model, it comprises:
Substrate;
Be installed on the input module on described substrate, it comprises the first power pins and input pin, and described the first power pins and input pin can form closed-loop path by wire and external conductor;
Be installed on the output module on described substrate, it comprises second source pin, output pin and grounding pin, and described output pin is as the output of touch modules;
Be installed on the touch detection circuit on described substrate, its input is connected with described input pin, and its output is connected with described output pin;
When described the first power pins and input pin form closed-loop path by wire and external conductor, the output pin of described output module becomes the first logic level, when the closed-loop path that described the first power pins and input pin form by wire and external conductor disconnects, the output pin of described output module becomes the second logic level.
As preferred embodiment of the utility model, described touch detection circuit comprises the first resistor, the first capacitor, the second resistor, the 3rd resistor, the 4th resistor, the first triode, the second triode, the 3rd triode, the 4th triode and the 5th triode
One end of described the first resistor is as the input of described touch detection circuit, and the other end of the first resistor is connected with one end of the first capacitor, the other end ground connection of the first capacitor;
The base stage of the first triode is connected with the intermediate node of the first capacitor with the first resistor, and the collector electrode of the first triode is connected with power supply, and the emitter of the first triode is connected with the base stage of the second triode,
One end of the second resistor connects the collector electrode of the second triode, and the other end connects power supply, the grounded emitter of the second triode,
One end of the 3rd resistor connects the collector electrode of the 3rd triode, and the other end connects power supply, the grounded emitter of the 3rd triode, and base stage connects the collector electrode of the second triode;
One end of the 4th resistor connects the emitter of the 5th triode, and the other end connects power supply, the grounded collector of the 5th triode, and the 5th triode is as the output of described touch detection circuit,
The base stage of the 4th triode connects the collector electrode of the 3rd triode, and the collector electrode of the 4th triode connects the base stage of the 5th triode, the grounded emitter of the 4th triode.
As preferred embodiment of the utility model, described the first resistor and the first capacitor form low-pass filter circuit;
Described the first triode and the second triode form darlington structure, and described the first triode, the second triode and the second resistor form signal amplification circuit;
Described the 3rd triode and the 3rd resistor form voltage reversal amplifying circuit;
Described the 4th triode, the 5th triode and the 4th resistor form pressure limiting circuit;
When forming closed-loop path by wire and external conductor, the first power pins and input pin produce input signal, described low-pass filter circuit is limited in the cut-off frequency of input signal in 24Hz, described darlington structure circuit amplifies input current, make the signal of described the first output become large, to by voltage reversal amplifier, oppositely amplify from the signal of the first output output, for described the 4th triode and the 5th triode conducting, when the base voltage of described the 4th triode is greater than cut-ff voltage, described output pin output low level, when the base voltage of described the 4th triode is less than cut-ff voltage, described output pin output high level, now the first logic level is low level, the second logic level is high level.
For reaching aforementioned another object, the utility model is a kind of without string qin detection system, it comprises: touch modules, control and the wireless sending module as described in several are as arbitrary in claim 1-3, receiver module and sounding module, the corresponding a kind of sound of each touch modules
The input module of described touch modules by wire be connected with described control and wireless sending module, output module can form closed-loop path by wire and external conductor,
Described touch modules detects input module and whether forms formation closed-loop path, closed-loop path with external conductor, if input module and external conductor detected, form closed-loop path, send touch signal to described control module and wireless sending module, described control and wireless sending module are gone out described touch signal wireless transmission
Described receiver module receives after described touch signal, notifies described sounding module to send corresponding sound.
As preferred embodiment of the utility model, wherein there is the first power pins of the input module of a touch modules to be connected with external conductor by wire, and this external conductor is connected with the input pin of the input module of any one touch modules by wire, thereby the touch modules that input pin is connected with external conductor is sent touch signal.
As preferred embodiment of the utility model, described touch modules is seven, and wherein, the first power pins of these seven touch modules shares a power supply.
As preferred embodiment of the utility model, described receiver module is wireless receiving.
As preferred embodiment of the utility model, described sounding module is loud speaker.
As preferred embodiment of the utility model, described is a kind of musical instrument without string qin.
The beneficial effects of the utility model: compared with prior art, the utility model resistive touch module, its circuit is fast to input module response, and by low-pass filter circuit, can limit the cut-off frequency of input signal, by signal amplification circuit, can make small electric current amplify, not only guaranteed the normal work of circuit, and the response speed of circuit is improved greatly.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of touch modules of the present utility model;
Fig. 2 is the structural representation that touch modules of the present utility model connects external conductor;
Fig. 3 is the testing circuit schematic diagram of the utility model touch modules;
Fig. 4 is that the utility model is without the structured flowchart of string qin detection system.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Alleged " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the utility model herein.Different local in this manual " in one embodiment " that occur not all refer to same embodiment, neither be independent or the embodiment mutually exclusive with other embodiment optionally.
Refer to Fig. 1, its structured flowchart that is touch modules of the present utility model.Described touch modules 100 comprises substrate 101, input module 110, output module 120 and touch detection circuit 130.
Refer to Fig. 2, it is the structural representation that touch modules of the present utility model connects external conductor.Described input module 110 is installed on described substrate 101, and described input module 110 comprises the first power pins 111 and input pin 112, and described the first power pins 111 and input pin 112 can form closed-loop path by wire and external conductor 200.
Described output module 120 is installed on described substrate 101, and described output module 120 comprises second source pin 121, output pin 122 and grounding pin 123, and described output pin 122 is as the output of touch modules.
Described touch detection circuit 130 is installed on described substrate 101, and the input of described touch detection circuit 130 is connected with described input pin 112, and the output of described touch detection circuit 130 is connected with described output pin 122.When described the first power pins 111 and input pin 112 form closed-loop path by wire and external conductor 200, the output pin 122 of described output module 120 becomes the first logic level, when the closed-loop path that described the first power pins 111 and input pin 112 form by wire and external conductor 200 disconnects, the output pin 122 of described output module 120 becomes the second logic level.In the utility model, described conductor is the object that human body, fruit, metal etc. can conduct electricity.
Refer to Fig. 3, it is the testing circuit schematic diagram of the utility model touch modules.Described touch detection circuit comprises the first resistor R1, the first capacitor C1, the second resistor R2, the 3rd resistor R3, the 4th resistor R4Q1, the first triode, the second triode Q2, the 3rd triode Q3, the 4th triode Q4 and the 5th triode Q5.
One end of described the first resistor R1 is as the input (IN) of described touch detection circuit, and the other end of the first resistor R1 is connected with one end of the first capacitor C1, the other end ground connection of the first capacitor C1.
The base stage of the first triode Q1 is connected with the intermediate node of the first capacitor C1 with the first resistor R1, and the collector electrode of the first triode Q1 is connected with power supply (VCC), and the emitter of the first triode Q1 is connected with the base stage of the second triode Q2.
One end of the second resistor R2 connects the collector electrode of the second triode Q2, and the other end connects power supply (VCC), the grounded emitter of the second triode Q2.
One end of the 3rd resistor R3 connects the collector electrode of the 3rd triode Q3, and the other end connects power supply (VCC), the grounded emitter of the 3rd triode Q3, and base stage connects the collector electrode of the second triode Q2.
One end of the 4th resistor R4 connects the emitter of the 5th triode Q5, and the other end connects power supply (VCC), the grounded collector of the 5th triode Q5, and the 5th triode Q5 is as the output of described touch detection circuit.
The base stage of the 4th triode Q4 connects the collector electrode of the 3rd triode Q3, and the collector electrode of the 4th triode Q4 connects the base stage of the five or three utmost point Q5 pipe, the grounded emitter of the 4th triode Q4.
Described the first resistor R1 and the first capacitor C1 form low-pass filter circuit.Take conductor as human body is example, because human body can be introduced touch detection circuit 130 by the power frequency component of 50Hz by input module 110, touch detection circuit 130 is caused to interference, so need to add filter circuit.At the input IN(of described touch detection circuit 130 input pin 112) series connection the first resistor R1 and the first capacitor C1 in parallel form typical RC filter circuit, the cut-off frequency of input signal is limited in 24Hz, guarantees the normal work of touch detection circuit 130.
Described the first triode Q1 and the second triode Q2 form darlington structure, and described the first triode Q1, the second triode Q2 and the second resistor R2 form signal amplification circuit.If during the conductor that between the input pin 112 of input module 110 and the first power pins 111, water receiving fruit and human body constant resistance are larger, the electric current of input can be very little, the darlington structure that the first triode Q1 and the second triode Q2 form, small electric current can be amplified, make the signal at the first output OUT1 place enough large.
Described the 3rd triode Q3 and the 3rd resistor R3 form voltage reversal amplifying circuit.This voltage reversal amplifying circuit amplifies the first output OUT1 signals reverse, for the 4th triode Q4 and the 5th triode Q5 conducting.Due to the existence of the first capacitor C1, cause Circuit responce speed slack-off.When conductor leaves input pin 112 and the first power pins 111, the first capacitor C1 is to the first triode Q1 and the second triode Q2 electric discharge, amplification due to the first triode Q1, the second triode Q2 and the 3rd triode Q3, make the 4th triode Q4 and the 5th triode Q5 circuit can the first capacitor C1 voltage drop a bit after conducting immediately, thereby improved the response speed of circuit.
Described the 4th triode Q4, the 5th triode Q5 and the 4th resistor R4 form pressure limiting circuit.If the base voltage of the 4th triode Q4 is greater than cut-ff voltage, OUT place in output pin 122(Fig. 3) output low level, if be less than cut-ff voltage, output high level, the working region of triode is limited at 0 volt between cut-ff voltage.Circuit is to input IN(input pin 112) have a very fast response.
As shown in Figures 2 and 3, the principle of the utility model touch detection circuit is as follows: when the first power pins 111 of input module 110 and input pin 112 form closed-loop path by wire and external conductor 200, produce input signal, described low-pass filter circuit is limited in the cut-off frequency of input signal in 24Hz, described darlington structure circuit amplifies input current, make the signal of described the first output OUT1 become large, to by voltage reversal amplifier, oppositely amplify from the signal of the first output OUT1 output, for described the 4th triode Q4 and the 5th triode Q5 conducting, when the base voltage of described the 4th triode Q4 is greater than cut-ff voltage, OUT in output pin 122(Fig. 3 of described output module 120) output low level, when the base voltage of described the 4th triode Q4 is less than cut-ff voltage, OUT in output pin 122(Fig. 3 of described output module 120) output high level, now the first logic level is low level, the second logic level is high level.
In one embodiment, touch modules of the present utility model can be used in the test section without string qin.Refer to Fig. 4, it is without the structured flowchart of string qin detection system in the utility model.Describedly without string qin detection system, comprise several above-mentioned touch modules 100, control and wireless sending module 300, receiver module 400 and sounding module 500, the corresponding a kind of sound of each touch modules 100.
The input module 110 of described touch modules 100 by wire be connected with described control and wireless sending module 300, described touch modules 100 detects input modules 110 and whether forms closed-loop path with external conductor, if input module 110 detected, form closed-loop path with external conductor, send touch signal to described control and wireless sending module 300, described control and wireless sending module 300 are gone out described touch signal wireless transmission, described receiver module 400 receives after described touch signal, notifies described sounding module 500 to send corresponding sound.
Wherein there is the first power pins of the input module of a touch modules to be connected with external conductor by wire, and this external conductor is connected with the input pin of the input module of any one touch modules by wire, thereby the touch modules that input pin is connected with external conductor is sent touch signal.In this embodiment, described is a kind of musical instrument without string qin, and described touch modules 100 has seven, the corresponding a kind of sound of each touch modules 100, and wherein, the first power pins 111 of these seven touch modules 100 shares a power supply.For example, when people's a hand contacts the first power pins 111, when another hand contacts any one in input pin 112, corresponding touch modules 100 can be by output pin 122 output low levels of its output module 120, described control and wireless sending module 300 send to described receiver module 400 by signal after low level being detected, and described receiver module 400 receives that controlling sounding module 500 after signal sends corresponding sound.In this embodiment, described receiver module 400 is wireless receiving.Described sounding module 500 is loud speaker.In other embodiments, described sounding module 500 can be also other audible devices.
In the utility model, by definition, touch seven input pins 112, send respectively a sound in 7 notes, so just can play out interesting to listen to song.
Resistive touch module of the present utility model, its circuit is fast to input module response, and by low-pass filter circuit, can limit the cut-off frequency of input signal, by signal amplification circuit, can make small electric current amplify, not only guaranteed the normal work of circuit, and the response speed of circuit is improved greatly.
Above-mentioned explanation has fully disclosed embodiment of the present utility model.It is pointed out that being familiar with any change that person skilled in art does embodiment of the present utility model does not all depart from the scope of claims of the present utility model.Correspondingly, the scope of claim of the present utility model is also not limited only to previous embodiment.
Claims (9)
1. a resistive touch module, is characterized in that: it comprises:
Substrate;
Be installed on the input module on described substrate, it comprises the first power pins and input pin, and described the first power pins and input pin can form closed-loop path by wire and external conductor;
Be installed on the output module on described substrate, it comprises second source pin, output pin and grounding pin, and described output pin is as the output of touch modules;
Be installed on the touch detection circuit on described substrate, its input is connected with described input pin, and its output is connected with described output pin;
When described the first power pins and input pin form closed-loop path by wire and external conductor, the output pin of described output module becomes the first logic level, when the closed-loop path that described the first power pins and input pin form by wire and external conductor disconnects, the output pin of described output module becomes the second logic level.
2. resistive touch module according to claim 1, it is characterized in that: described touch detection circuit comprises the first resistor, the first capacitor, the second resistor, the 3rd resistor, the 4th resistor, the first triode, the second triode, the 3rd triode, the 4th triode and the 5th triode
One end of described the first resistor is as the input of described touch detection circuit, and the other end of the first resistor is connected with one end of the first capacitor, the other end ground connection of the first capacitor;
The base stage of the first triode is connected with the intermediate node of the first capacitor with the first resistor, and the collector electrode of the first triode is connected with power supply, and the emitter of the first triode is connected with the base stage of the second triode,
One end of the second resistor connects the collector electrode of the second triode, and the other end connects power supply, the grounded emitter of the second triode,
One end of the 3rd resistor connects the collector electrode of the 3rd triode, and the other end connects power supply, the grounded emitter of the 3rd triode, and base stage connects the collector electrode of the second triode;
One end of the 4th resistor connects the emitter of the 5th triode, and the other end connects power supply, the grounded collector of the 5th triode, and the 5th triode is as the output of described touch detection circuit,
The base stage of the 4th triode connects the collector electrode of the 3rd triode, and the collector electrode of the 4th triode connects the base stage of the 5th triode, the grounded emitter of the 4th triode.
3. resistive touch module according to claim 2, is characterized in that:
Described the first resistor and the first capacitor form low-pass filter circuit;
Described the first triode and the second triode form darlington structure, and described the first triode, the second triode and the second resistor form signal amplification circuit;
Described the 3rd triode and the 3rd resistor form voltage reversal amplifying circuit;
Described the 4th triode, the 5th triode and the 4th resistor form pressure limiting circuit;
When forming closed-loop path by wire and external conductor, the first power pins and input pin produce input signal, described low-pass filter circuit is limited in the cut-off frequency of input signal in 24Hz, described darlington structure circuit amplifies input current, make the signal of described the first output become large, to by voltage reversal amplifier, oppositely amplify from the signal of the first output output, for described the 4th triode and the 5th triode conducting, when the base voltage of described the 4th triode is greater than cut-ff voltage, described output pin output low level, when the base voltage of described the 4th triode is less than cut-ff voltage, described output pin output high level, now the first logic level is low level, the second logic level is high level.
4. without a string qin detection system, it is characterized in that: it comprises: touch modules, control and the wireless sending module as described in several are as arbitrary in claim 1-3, receiver module and sounding module, the corresponding a kind of sound of each touch modules,
The input module of described touch modules by wire be connected with described control and wireless sending module, output module can form closed-loop path by wire and external conductor,
Described touch modules detects input module and whether forms closed-loop path with external conductor, if input module and external conductor detected, form closed-loop path, send touch signal to described control module and wireless sending module, described control and wireless sending module are gone out described touch signal wireless transmission
Described receiver module receives after described touch signal, notifies described sounding module to send corresponding sound.
5. according to claim 4 without string qin detection system, it is characterized in that: wherein have the first power pins of the input module of a touch modules to be connected with external conductor by wire, and this external conductor is connected with the input pin of the input module of any one touch modules by wire, thereby the touch modules that input pin is connected with external conductor is sent touch signal.
6. according to claim 4 without string qin detection system, it is characterized in that: described touch modules is seven, wherein, the first power pins of these seven touch modules shares a power supply.
7. according to claim 4 without string qin detection system, it is characterized in that: described receiver module is wireless receiving.
8. according to claim 4 without string qin detection system, it is characterized in that: described sounding module is loud speaker.
9. according to claim 4 without string qin detection system, it is characterized in that: described is a kind of musical instrument without string qin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129798.5U CN203775180U (en) | 2014-03-21 | 2014-03-21 | Resistance-type touch module and non-stringed musical instrument detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420129798.5U CN203775180U (en) | 2014-03-21 | 2014-03-21 | Resistance-type touch module and non-stringed musical instrument detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN203775180U true CN203775180U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420129798.5U Expired - Fee Related CN203775180U (en) | 2014-03-21 | 2014-03-21 | Resistance-type touch module and non-stringed musical instrument detecting system |
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| CN (1) | CN203775180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009745A (en) * | 2014-03-21 | 2014-08-27 | 无锡爱睿芯电子有限公司 | Resistive touch module and stringless musical instrument detection system |
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2014
- 2014-03-21 CN CN201420129798.5U patent/CN203775180U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009745A (en) * | 2014-03-21 | 2014-08-27 | 无锡爱睿芯电子有限公司 | Resistive touch module and stringless musical instrument detection system |
| CN104009745B (en) * | 2014-03-21 | 2017-02-22 | 无锡爱睿芯电子有限公司 | Resistive touch module and stringless musical instrument detection system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190321 |