CN211791474U - Prompting circuit and touch button - Google Patents
Prompting circuit and touch button Download PDFInfo
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- CN211791474U CN211791474U CN202020528948.5U CN202020528948U CN211791474U CN 211791474 U CN211791474 U CN 211791474U CN 202020528948 U CN202020528948 U CN 202020528948U CN 211791474 U CN211791474 U CN 211791474U
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Abstract
The embodiment of the utility model discloses suggestion circuit and touch button. The prompting circuit comprises a touch detection module, a control module and a prompting module. The touch detection module generates a first control signal when a user touches the touch screen, generates a second control signal when the user does not touch the touch screen, the control module adjusts the potential of the electric connection part of the control module and the prompt module according to the first control signal and the second control signal, and the prompt module carries out information prompt according to the potential of the electric connection part of the control module and the prompt module, so that automatic touch induction type information prompt is realized, and the service life of the touch button is prolonged.
Description
Technical Field
The embodiment of the utility model provides a relate to bus suggestion control technology, especially relate to a suggestion circuit and touch button.
Background
At present, getting-off prompt buttons used on buses are generally divided into wired type and wireless type; in order to facilitate passengers to get off safely, the passengers need to press the wired buttons to prompt the passengers to get off.
However, in the prior art, most of the button ends of the departure prompt buttons use a mechanical contact mode, and contact oxidation and deformation are easy to occur, so that the product is out of work.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a prompting circuit and touch button to realize automatic touch-sensitive formula information prompt.
In a first aspect, an embodiment of the present invention provides a prompt circuit, which includes a touch detection module, a control module, and a prompt module;
the touch detection module is electrically connected with the control module; the control module is electrically connected with the prompt module;
the touch detection module is used for generating a first control signal when a user touches the touch screen and generating a second control signal when the user does not touch the touch screen; the control module is used for adjusting the potential at the electric connection position of the control module and the prompting module according to the first control signal and the second control signal; the prompting module is used for carrying out information prompting according to the electric potential at the electric connection position of the control module and the prompting module.
Optionally, the touch detection module includes:
a touch panel and a detection chip; the touch panel is electrically connected with the detection chip; the detection chip is electrically connected with the control module;
the touch panel is used for sensing user touch; the detection chip is used for generating a first control signal when a user touches the touch screen and generating a second control signal when the user does not touch the touch screen.
Optionally, the system further comprises a delay trigger circuit; the touch detection module is electrically connected with the control module through the delay trigger circuit; the delay trigger circuit comprises a first capacitor and a first resistor;
the first end of the first capacitor is electrically connected with the touch detection module, the second end of the first capacitor is electrically connected with the first end of the first resistor, and the second end of the first resistor is electrically connected with the control module.
Optionally, the control module includes a triode;
the control electrode of the triode is electrically connected with the touch detection module, and the first electrode of the triode is electrically connected with the prompt module; and the second pole of the triode is grounded.
Optionally, a second resistor is further included,
the first end of the second resistor is electrically connected with the control electrode of the triode, and the second end of the second resistor is grounded.
Optionally, the system further comprises an energy storage module; the energy storage module comprises a second capacitor and a diode; the first end of the second capacitor is electrically connected with the cathode of the diode; the second end of the second capacitor is grounded; the connecting point of the prompting module and the control module is electrically connected with the anode of the diode; and the cathode of the diode is also electrically connected with a power supply end of the touch detection module.
Optionally, the touch detection module further comprises a voltage regulation module, and a cathode of the diode is electrically connected to a power supply end of the touch detection module through the voltage regulation module.
Optionally, the voltage adjusting module includes a third capacitor, a fourth capacitor, and a voltage adjusting chip;
the first end of the third capacitor is electrically connected with the input end of the voltage regulation chip, the second end of the third capacitor is connected with the ground, the first end of the fourth capacitor is electrically connected with the output end of the voltage regulation chip, and the second end of the fourth capacitor is connected with the ground.
Optionally, the touch detection module further includes a fifth capacitor and a sixth capacitor;
the first end of the fifth capacitor is electrically connected with the input end of the detection chip, the first end of the sixth capacitor is electrically connected with the output end of the detection chip, the second end of the fifth capacitor is connected with the ground, and the second end of the sixth capacitor is connected with the ground.
In a second aspect, the embodiment of the present invention further provides a touch button, where the touch button includes the above first aspect.
The embodiment of the utility model provides an in the embodiment touch detection module produces first control signal when the user touch-control, produce the second control signal when the user does not touch-control, control module then adjusts the electric potential of control module and suggestion module electricity junction according to first control signal and second control signal, the suggestion module carries out the information prompt according to the electric potential of control module and suggestion module electricity junction, adopt the mode of touch detection user touch-control like this, carry out the information prompt according to user touch-control information, the mode of direct use mechanical contact among the prior art has been solved and has been carried out the information prompt, the mode of adopting mechanical contact takes place the contact oxidation easily, the contact deformation arouses suggestion inefficacy scheduling problem, automatic touch induction type information prompt has been realized, the life-span of touch button has been improved.
Drawings
Fig. 1 is a block diagram of a prompt circuit according to a first embodiment of the present invention;
fig. 2 is a circuit structure diagram of a prompt circuit according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a block diagram of a prompt circuit according to an embodiment of the present invention, as shown in fig. 1, the prompt circuit includes a touch detection module 10, a control module 20, and a prompt module 30. The touch detection module 10 is electrically connected with the control module 20; the control module 20 is electrically connected to the prompting module 30.
The touch detection module 10 is configured to generate a first control signal when a user touches the touch panel, and generate a second control signal when the user does not touch the touch panel; the control module 20 is used for adjusting the electric potential at the electric connection position of the control module 20 and the prompting module 30 according to the first control signal and the second control signal; the prompting module 30 is used for prompting information according to the electric potential at the electric connection position of the control module 20 and the prompting module 30.
Wherein, the theory of operation of this suggestion circuit does: the touch detection module 10 generates a continuous first control signal when detecting a touch action of a user, for example, the touch detection module 10 generates a high level signal when detecting the touch action of the user, the control module 20 adjusts a potential at an electrical connection position between the control module 20 and the prompt module 30 to be a low level according to the high level signal, and the prompt module 30 prompts information according to the low level signal, for example, the prompt module 30 prompts a passenger to get off when receiving the low level signal. When the touch detection module 10 detects that the user is not touching, a continuous second control signal is generated, and illustratively, when the touch detection module 10 detects that the user is not touching, a low level signal is generated; the control module 20 adjusts the electric potential at the electric connection position between the control module 20 and the prompt module 30 to be a high level according to the low level signal, and the prompt module 30 performs information prompt according to the high level signal, for example, the prompt module 30 does not prompt passengers to get off when receiving the high level signal. In this way, the touch detection module 10 is used for detecting the touch of the user, and information prompt is carried out according to the touch information of the user, so that the problems that in the prior art, information prompt is carried out by directly using a mechanical contact mode, the mechanical contact mode is easy to cause contact oxidation and contact deformation to cause prompt failure and the like are solved, and automatic touch induction type information prompt is realized.
Example two
On the basis of the first embodiment, further optimization is performed, fig. 2 is a circuit structure diagram of a prompt circuit provided by the second embodiment of the present invention, as shown in fig. 2, the touch detection module 10 includes a touch panel 11 and a detection chip 12; the touch panel 11 is electrically connected with the detection chip 12; the detection chip 12 is electrically connected to the control module 20. The touch panel 11 is used for sensing user touch; the detection chip 12 is used for generating a first control signal when the user touches the touch screen and generating a second control signal when the user does not touch the touch screen.
The touch panel 11 is a capacitive copper foil touch panel, when a human body touches the touch panel 11, the human body and the touch panel 11 generate an equivalent capacitance, the equivalent capacitance is continuously charged and discharged, the capacitance value is continuously changed, and the detection chip 12 outputs different electrical signals according to different capacitance values, so that the touch action of the touch panel 11 is converted into different electrical signals. Specifically, the detection chip 12 generates a first control signal when sensing a user touch, for example, the first control signal is a high-level electrical signal; when the user touch is not sensed, a second control signal is generated, for example, the second control signal is a low-level electrical signal.
Optionally, the touch detection module 10 further includes a fifth capacitor C5 and a sixth capacitor C6; the first end of the fifth capacitor C5 is electrically connected to the input terminal of the sense die 12, the first end of the sixth capacitor C6 is electrically connected to the output terminal of the sense die 12, and the second end of the fifth capacitor C5 is electrically connected to the second end of the sixth capacitor C6.
The fifth capacitor C5 and the sixth capacitor C6 in the touch detection module 10 play a role of filtering.
Optionally, referring to fig. 2, the hint circuit further includes a delay trigger circuit 40. The touch detection module 10 is electrically connected with the control module 20 through the delay trigger circuit 40; the delay trigger circuit 40 includes a first capacitor C1 and a first resistor R1. The first end of the first capacitor C1 is electrically connected to the touch sensing module 10, the second end of the first capacitor C1 is electrically connected to the first end of the first resistor R1, and the second end of the first resistor R1 is electrically connected to the control module 20.
Optionally, with continued reference to fig. 2, control module 20 includes a transistor Q1. The control electrode of the transistor Q1 is electrically connected to the touch detection module 10, the first electrode of the transistor Q1 is electrically connected to the prompt module 30, and the second electrode of the transistor Q1 is grounded.
Optionally, with continued reference to fig. 2, the notification circuit further includes an energy storage module 50. The energy storage module 50 comprises a second capacitor C2 and a diode D1; a first end of the second capacitor C2 is electrically connected with the cathode of the diode D1; the second end of the second capacitor C2 is grounded; the connection point of the prompting module 30 and the control module 20 is electrically connected with the positive electrode of the diode D1; the cathode of the diode D1 is also electrically connected to the power supply terminal VDD of the touch detection module 10.
When the touch detection module 10 outputs a continuous second control signal, for example, the touch detection module 10 outputs a continuous low-level signal, the output end of the delay trigger circuit 40 outputs a low-level signal, and the control electrode of the transistor Q1 in the control module 20 is a low-level signal, at this time, the transistor Q1 is in an off state, the first electrode of the transistor Q1 is in a high-level state, and the prompt module 30 does not perform information prompting; meanwhile, since the first pole of the transistor Q1 is at a high level and the second pole is grounded, a potential difference exists across the second capacitor C2 in the energy storage module 50, and the second capacitor C2 starts to store energy. At this time, the first pole of the triode Q1 is electrically connected to the touch sensing module 10, the first pole of the transistor Q1 is in a high level state, and the first pole of the transistor Q1 supplies power to the touch sensing module 10.
When the touch detection module 10 outputs a continuous first control signal, for example, the touch detection module 10 outputs a continuous high level signal, a potential difference exists between two ends of the first capacitor C1 in the delay trigger circuit 40, the first capacitor C1 starts to be charged, the control electrode of the triode Q1 in the control module 20 outputs a high level signal, at this time, the triode Q1 is turned on, the high level signal of the first electrode of the triode Q1 is pulled down, and the prompt module 30 detects that the high level signal of the first electrode of the triode Q1 is pulled down, so as to perform information prompt. Meanwhile, since the transistor Q1 in the control module 20 is in the off state, the second capacitor C2 has a certain amount of stored energy, the energy storage module 50 is electrically connected to the power supply terminal VDD of the touch detection module 10, and at this time, the second capacitor C2 supplies power to the touch detection module 10. When the charging of the first capacitor C1 is completed, the control electrode of the transistor Q1 in the control module 20 outputs a low level signal, at this time, the transistor Q1 is in a disconnected state, the first electrode of the transistor Q1 is still a high level signal, and when the prompt module 30 detects that the first electrode of the transistor Q1 is a high level signal, information reminding is not performed any more; meanwhile, the transistor Q1 is in an off state, and the second capacitor C2 stores energy. At this time, the first electrode of the transistor Q1 supplies power to the touch detection module 10.
It can be understood that, when the user always touches the touch detection module 10, the touch detection module 10 outputs a continuous high level signal, in order to prevent the transistor Q1 in the control module 20 from being always in the on state, the second capacitor C2 cannot store energy, after the touch detection module 10 outputs the continuous high level signal, the continuous high level signal passes through the delay trigger circuit 40, the first capacitor C1 in the delay trigger circuit 40 changes from the charging state to the discharging state, the transistor Q1 in the control module 20 changes from the on state to the off state, and the second capacitor C2 also changes from the non-energy storage state to the energy storage state, so that the second capacitor C2 can also continuously supply power to the touch detection module 10 when the transistor Q1 is on based on the potential information of the first pole of the transistor Q1.
It should be noted that the transistor Q1 in the control module 20 may also be another switching device, for example, a switching device such as a relay or a transformer, and the type of the switching device of the control module 20 is not limited herein.
Optionally, with continued reference to fig. 2, the notification circuit further includes a second resistor R2. A first end of the second resistor R2 is electrically connected to the control electrode of the transistor Q1, and a second end of the second resistor R2 is grounded.
When the touch detection module 10 outputs the continuous first control signal, and the first capacitor C1 in the time delay trigger circuit 40 is completely charged, i.e. starts to discharge, the discharge current of the time delay trigger circuit 40 can flow back through the second resistor R2 to protect the power utilization circuit.
Optionally, as shown in fig. 2, the touch detection module further includes a voltage regulation module 60, and a cathode of the diode D1 is electrically connected to the power supply terminal of the touch detection module 10 through the voltage regulation module 60.
Optionally, referring to fig. 2, the voltage adjustment module 60 includes a third capacitor C3, a fourth capacitor C4, and a voltage adjustment chip U1., wherein a first terminal of the third capacitor C3 is electrically connected to an input terminal of the voltage adjustment chip U1, a second terminal of the third capacitor C3 is connected to ground, a first terminal of the fourth capacitor C4 is electrically connected to an output terminal of the voltage adjustment chip U1, and a second terminal of the fourth capacitor C4 is connected to ground.
When the second capacitor C2 in the energy storage module 50 supplies power to the touch detection module 10, the voltage output by the energy storage module 50 needs to be adjusted to a suitable voltage provided by the touch detection module 10 through a certain voltage, so as to ensure the safe power supply of the touch detection module 10. For example, the voltage adjusting module 60 may be a voltage dropping module, and when the voltage output by the energy storage module 50 is a high voltage, a certain low voltage is output through the voltage dropping module to provide a suitable voltage for the touch detection module 10.
EXAMPLE III
The embodiment of the utility model provides a touch button is still provided, this touch button includes the suggestion circuit in the above-mentioned embodiment. Since the touch button includes the above-mentioned cue circuit, the touch button also has the beneficial effects of the cue circuit in the above-mentioned embodiments, which is not described herein any more, and on this basis, the service life of the touch button is also prolonged.
The touch button can be applied to different scenes, for example, touch induction scenes such as bus getting-off prompting of passengers, entrance and exit prompting of community entrance guard and the like.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A prompt circuit is characterized by comprising a touch detection module, a control module and a prompt module;
the touch detection module is electrically connected with the control module; the control module is electrically connected with the prompt module;
the touch detection module is used for generating a first control signal when a user touches the touch screen and generating a second control signal when the user does not touch the touch screen; the control module is used for adjusting the potential at the electric connection position of the control module and the prompting module according to the first control signal and the second control signal; the prompting module is used for carrying out information prompting according to the electric potential at the electric connection position of the control module and the prompting module.
2. The cue circuit of claim 1 wherein the touch detection module comprises:
a touch panel and a detection chip; the touch panel is electrically connected with the detection chip; the detection chip is electrically connected with the control module;
the touch panel is used for sensing user touch; the detection chip is used for generating a first control signal when a user touches the touch screen and generating a second control signal when the user does not touch the touch screen.
3. The hint circuit of claim 1, further comprising a delay trigger circuit; the touch detection module is electrically connected with the control module through the delay trigger circuit; the delay trigger circuit comprises a first capacitor and a first resistor;
the first end of the first capacitor is electrically connected with the touch detection module, the second end of the first capacitor is electrically connected with the first end of the first resistor, and the second end of the first resistor is electrically connected with the control module.
4. The alert circuit of claim 1, wherein the control module comprises a transistor;
the control electrode of the triode is electrically connected with the touch detection module, and the first electrode of the triode is electrically connected with the prompt module; and the second pole of the triode is grounded.
5. The alert circuit of claim 4, further comprising a second resistor,
the first end of the second resistor is electrically connected with the control electrode of the triode, and the second end of the second resistor is grounded.
6. The alert circuit of claim 1, further comprising an energy storage module; the energy storage module comprises a second capacitor and a diode; the first end of the second capacitor is electrically connected with the cathode of the diode; the second end of the second capacitor is grounded; the connecting point of the prompting module and the control module is electrically connected with the anode of the diode; and the cathode of the diode is also electrically connected with a power supply end of the touch detection module.
7. The prompting circuit of claim 6, further comprising a voltage regulating module, wherein the cathode of the diode is electrically connected with the power end of the touch detection module through the voltage regulating module.
8. The hint circuit of claim 7, wherein the voltage adjustment module comprises a third capacitor, a fourth capacitor, and a voltage adjustment chip;
the first end of the third capacitor is electrically connected with the input end of the voltage regulation chip, the second end of the third capacitor is connected with the ground, the first end of the fourth capacitor is electrically connected with the output end of the voltage regulation chip, and the second end of the fourth capacitor is connected with the ground.
9. The notification circuit of claim 2, wherein the touch detection module further comprises a fifth capacitance and a sixth capacitance;
the first end of the fifth capacitor is electrically connected with the input end of the detection chip, the first end of the sixth capacitor is electrically connected with the output end of the detection chip, the second end of the fifth capacitor is connected with the ground, and the second end of the sixth capacitor is connected with the ground.
10. A touch button comprising the alert circuit of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020528948.5U CN211791474U (en) | 2020-04-10 | 2020-04-10 | Prompting circuit and touch button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020528948.5U CN211791474U (en) | 2020-04-10 | 2020-04-10 | Prompting circuit and touch button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211791474U true CN211791474U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020528948.5U Active CN211791474U (en) | 2020-04-10 | 2020-04-10 | Prompting circuit and touch button |
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|---|---|
| CN (1) | CN211791474U (en) |
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2020
- 2020-04-10 CN CN202020528948.5U patent/CN211791474U/en active Active
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