CN209526707U - A kind of touch key system based on capacitance plate - Google Patents

A kind of touch key system based on capacitance plate Download PDF

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Publication number
CN209526707U
CN209526707U CN201821735941.XU CN201821735941U CN209526707U CN 209526707 U CN209526707 U CN 209526707U CN 201821735941 U CN201821735941 U CN 201821735941U CN 209526707 U CN209526707 U CN 209526707U
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key
control unit
main control
triode
diode
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CN201821735941.XU
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陈德鹏
李亮劲
林志浩
王福临
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Xiamen Science And Technology Ltd Of Xiahua
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Xiamen Science And Technology Ltd Of Xiahua
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Abstract

The utility model provides a kind of touch key system based on capacitance plate, including master control key, secondary key, main control unit, key control module;The master control key, secondary key and key control module are all connected with the main control unit;It further include master control display, secondary display;The master control display and secondary display are all connected with the key control module;The master control key and secondary key are capacitance touch button;The application of capacitance plate touch key-press, and each key effect display in time can be realized using the technical program.

Description

A kind of touch key system based on capacitance plate
Technical field
The utility model relates to touch key-press field, in particular to a kind of touch key systems based on capacitance plate.
Background technique
In some specific fields of employment, a kind of specific control system is needed.Common button control system is generally only It is controlled using common key, keystroke sensitivity is poor;And common button control system display button can not be made in time With effect, key response is not prompt enough intuitive.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiencies in the prior art, provide a kind of touch based on capacitance plate Key system realizes the application of capacitance plate touch key-press, and each key effect display in time.
In order to solve the above-mentioned technical problem, the utility model provides a kind of touch key system based on capacitance plate, packet Include master control key, secondary key, main control unit, key control module;The master control key, secondary key and key control module It is all connected with the main control unit;It further include master control display, secondary display;The master control display and secondary display connect Connect the key control module;The master control key and secondary key are capacitance touch button;
Master control key is touched, the master control key sends booting touch signal or shutdown touch signal to the master control list Member, the main control unit receives the booting touch signal or shutdown touch signal, and starts or stops, the main control unit hair It send the first enabling signal or the first stop signal to the key control module, the master is controlled by the key control module Control display shows the first starting state or the first halted state;
When the master control display shows the first starting state;The secondary key is touched, the secondary key sends secondary To the main control unit, the main control unit receives the secondary enabling signal or secondary for grade enabling signal or secondary stop signal Stop signal simultaneously sends the second enabling signal or the second stop signal to the key control module, presses key control mould by described Block controls the secondary display and shows the second starting state or the second halted state.
In a preferred embodiment, the key control module includes first switch, second switch;The first switch Connect the main control unit and second switch;The both ends of the second switch connect the main control unit and secondary display;Institute It states main control unit and sends the first enabling signal to the key control module;The master control display shows the first open state, The first switch is opened, and the second switch is opened, and the main control unit is connected to secondary display, the main control unit hair Send the second enabling signal or the second stop signal to the secondary display;The main control unit sends the first stop signal to institute State key control module;The master control display shows that the first halted state, the first switch are closed, and the second switch closes It closes, the main control unit is not connected to secondary display.
In a preferred embodiment, the first switch is specially triode;Described in the base stage connection of the triode Main control unit, the collector connection power supply and second switch of the triode, the emitter ground connection of the triode;The master control The both ends of display connect the base stage and collector of the triode.
In a preferred embodiment, the second switch is specially metal-oxide-semiconductor;The grid connection described three of the metal-oxide-semiconductor The collector of pole pipe, the source electrode of the metal-oxide-semiconductor connect the main control unit, the drain electrode connection of the metal-oxide-semiconductor secondary display Device.
In a preferred embodiment, first enabling signal is specially high level signal, the base stage of the triode The high level signal from the main control unit is received, the collector connection emitter of triode ON, the triode is grounded, The collector level of the triode is pulled low, and the grid of the metal-oxide-semiconductor receives low level signal, and the metal-oxide-semiconductor conducting is described Secondary display is connected to main control unit;
First stop signal is specially low level signal, and the base stage of the triode, which receives, comes from the main control unit Low level signal, triode is not turned on, and the collector of the triode receives the high level signal from power supply, the MOS The grid of pipe receives high level signal, and the metal-oxide-semiconductor is not turned on, and the secondary display is not connected to main control unit.
In a preferred embodiment, the master control display screen is specially by first diode and the second diodes in parallel shape At diode group;The anode of the first diode connects the main control unit, and cathode connects the collector of the triode; The anode of second diode connects the collector of the triode, and cathode connects the main control unit;One or two pole Pipe and the second diode are light emitting diode;
When main control unit sends high level signal, first diode conducting, when main control unit sends low level signal, Second diode current flow.
In a preferred embodiment, the secondary display is specially third diode, and the third diode is specific For light emitting diode;The anode of the third diode connects the drain electrode of the metal-oxide-semiconductor;It is opened when the main control unit sends first Dynamic signal, the metal-oxide-semiconductor conducting;The main control unit sends the second enabling signal, the third diode current flow;The master control Unit sends the second stop signal, and the third diode is not turned on.
In a preferred embodiment, when the main control unit send the first enabling signal, first triode ON, When second triode is not turned on, the master control key is touched, the main control unit will send the first stop signal, and the described 1st Pole pipe is not turned on, second triode ON;
When the main control unit the second enabling signal of transmission, the third diode current flow, the secondary key is touched, The main control unit sends the second stop signal, and the third diode is not turned on.
In a preferred embodiment, the first diode is specially blue light diode, and second diode is specific For red diodes.
In a preferred embodiment, the secondary key is at least arranged one.
Compared to the prior art, the technical solution of the utility model have it is following the utility model has the advantages that
The utility model provides a kind of touch key system based on capacitance plate, is pressed by the realization of capacitance sheet touch key-press Key control process is more stable, and sensitivity is higher, and each key has light emitting diode and shows each press in time to realize The state of a control of key is applicable to specifically control occasion.
Detailed description of the invention
Fig. 1 is the circuit diagram in the preferred embodiment in the utility model about main control unit;
Fig. 2 is the circuit diagram in the preferred embodiment in the utility model about key control module;
Fig. 3 is in the preferred embodiment in the utility model about master control key and the circuit diagram of secondary key.
Specific embodiment
The utility model is described further below in conjunction with the drawings and specific embodiments.
A kind of touch key system based on capacitance plate, with reference to Fig. 1, including master control key, secondary key, main control unit NK01, key control module;Multiple by key control in order to realize, the secondary key is at least arranged one in the present system, In the present embodiment, the secondary key is arranged two, is all connected with the main control unit NK01, which secondary key is touched, main Control unit NK01 just receives the signal from it, and specifically, the master control is connect by the BL1 for being keyed the main control unit NK01 Mouthful, it is described secondary by BL2, BL3 interface for being keyed the main control unit NK01.The key control module connects the master control Unit NK01;It further include master control display, secondary display;The master control display and secondary display are all connected with the key Control module;The master control key and secondary key are capacitance touch button;Use capacitance touch button that can make key Control process is more stable, and sensitivity is higher.
Working principle are as follows: touch master control key, the master control key sends booting touch signal or shutdown touch signal extremely The main control unit NK01, the main control unit NK01 receive the booting touch signal or shutdown touch signal, and starting or Stop, the main control unit NK01 sends the first enabling signal or the first stop signal to the key control module, passes through institute It states the key control module control master control display and shows the first starting state or the first halted state;Master control key it is main Effect is that main control unit NK01 is made to power on booting.
After main control unit NK01 powers on booting, i.e., when the master control display shows the first starting state;Described in touch Secondary key, the secondary key send secondary enabling signal or secondary stop signal to the main control unit NK01, the master Unit NK01 is controlled to receive the secondary enabling signal or secondary stop signal and send the second enabling signal or the second stop signal To the key control module, the secondary display is controlled by the key control module and shows the second starting state or the Two halted states.
Specifically, the key control module includes first switch, second switch;The first switch connects the master Control unit NK01 and second switch;The both ends of the second switch connect the main control unit NK01 and secondary display;It is described Main control unit NK01 sends the first enabling signal to the key control module;The master control display shows the first opening state State, the first switch are opened, and the second switch is opened, and the main control unit NK01 is connected to secondary display, the master It controls unit NK01 and sends the second enabling signal or the second stop signal to the secondary display;The main control unit NK01 is sent First stop signal is to the key control module;The master control display shows that the first halted state, the first switch are closed It closes, the second switch is closed, and the main control unit NK01 is not connected to secondary display.
In the present embodiment, the first switch is specially triode VK01;The base stage of the triode VK01 connects institute State main control unit NK01, the collector connection power supply and second switch of the triode VK01, the transmitting of the triode VK01 Pole ground connection;The both ends of the master control display connect the base stage and collector of the triode VK01.The second switch is specific For metal-oxide-semiconductor VK02;The grid of the metal-oxide-semiconductor VK02 connects the collector of the triode VK01, the source electrode of the metal-oxide-semiconductor VK02 The main control unit NK01 is connected, the drain electrode of the metal-oxide-semiconductor VK02 connects the secondary display.
The concrete operating principle of this system are as follows: first enabling signal is specially high level signal, the triode The base stage of VK01 receives the high level signal from the main control unit NK01, triode VK01 conducting, the triode VK01 Collector connection emitter ground connection, the collector level of the triode VK01 is pulled low, and the grid of the metal-oxide-semiconductor VK02 connects Low level signal, the metal-oxide-semiconductor VK02 conducting are received, the secondary display is connected to main control unit NK01;
First stop signal is specially low level signal, and the base stage of the triode VK01, which receives, comes from the master control The low level signal of unit NK01, triode VK01 are not turned on, and the collector of the triode VK01 receives the height from power supply The grid of level signal, the metal-oxide-semiconductor VK02 receives high level signal, and the metal-oxide-semiconductor VK02 is not turned on, the secondary display It is not connected to main control unit NK01.
Specifically, the master control display screen is specially the diode formed by first diode and the second diodes in parallel Group LED1;The anode of the first diode connects the main control unit NK01, and cathode connects the current collection of the triode VK01 Pole;The anode of second diode connects the collector of the triode VK01, and cathode connects the main control unit NK01;Institute Stating first diode and the second diode is light emitting diode;When main control unit NK01 send high level signal, described first Diode current flow, when main control unit NK01 sends low level signal, second diode current flow.The secondary display is specific For third diode (LED) 2, the third diode (LED) 2 is specially light emitting diode;The anode of the third diode (LED) 2 Connect the drain electrode of the metal-oxide-semiconductor VK02;When the main control unit NK01 sends the first enabling signal, the metal-oxide-semiconductor VK02 conducting; The main control unit NK01 sends the second enabling signal, and the third diode (LED) 2 is connected;The main control unit NK01 is sent Second stop signal, the third diode (LED) 2 are not turned on.In the present embodiment.The first diode is specially blue light two Pole pipe, second diode is specially red diodes, can also use the light emitting diode of other colors, belong to and simply replace It changes, protection scope of this utility model cannot be limited by this.
Specifically, when the main control unit NK01 sends the first enabling signal, the first triode VK01 is connected, the When two triode VK01 are not turned on, the master control display shows that blue lamp lights, and red light goes out, and touches the master control key at this time, The main control unit NK01 will send the first stop signal, and the first triode VK01 is not turned on, second triode VK01 conducting, the master control display show that blue lamp is gone out, and red light lights.
In the case where main control unit NK01 powers on booting, when the main control unit NK01 sends the second enabling signal, institute When stating the conducting of third diode (LED) 2, the lamp of third diode (LED) 2 is lighted, and touches the secondary key, the master control list at this time First NK01 sends the second stop signal, and the third diode (LED) 2 is not turned on, and the lamp of third diode (LED) 2 goes out.
The utility model provides a kind of touch key system based on capacitance plate, is pressed by the realization of capacitance sheet touch key-press Key control process is more stable, and sensitivity is higher, and each key has light emitting diode and shows each press in time to realize The state of a control of key is applicable to specifically control occasion.
The preferable specific embodiment of the above, only the utility model, but the design concept of the utility model is not It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, utilizes this design The change that unsubstantiality is carried out to the utility model belongs to the behavior for invading scope of protection of the utility model.

Claims (10)

1. a kind of touch key system based on capacitance plate, which is characterized in that including master control key, secondary key, main control unit, Key control module;The master control key, secondary key and key control module are all connected with the main control unit;It further include master control Display, secondary display;The master control display and secondary display are all connected with the key control module;The master control is pressed Key and secondary key are capacitance touch button;
Master control key is touched, the master control key sends booting touch signal or shutdown touch signal to the main control unit, institute It states main control unit and receives the booting touch signal or shutdown touch signal, and start or stop, the main control unit transmission the It is aobvious to control the master control by the key control module to the key control module for one enabling signal or the first stop signal Show that device shows the first starting state or the first halted state;
When the master control display shows the first starting state;The secondary key is touched, the secondary key sends secondary and opens Dynamic signal or secondary stop signal are to the main control unit, and the main control unit receives the secondary enabling signal or secondary stops Signal simultaneously sends the second enabling signal or the second stop signal to the key control module, passes through the key control module control It makes the secondary display and shows the second starting state or the second halted state.
2. the touch key system according to claim 1 based on capacitance plate, which is characterized in that the key control module Including first switch, second switch;The first switch connects the main control unit and second switch;The two of the second switch End connects the main control unit and secondary display;The main control unit sends the first enabling signal and presses key control mould to described Block;The master control display shows that the first open state, the first switch are opened, and the second switch is opened, the master control Unit is connected to secondary display, and the main control unit sends the second enabling signal or the second stop signal to the secondary display Device;The main control unit sends the first stop signal to the key control module;The master control display shows the first stopping State, the first switch are closed, and the second switch is closed, and the main control unit is not connected to secondary display.
3. the touch key system according to claim 2 based on capacitance plate, which is characterized in that the first switch is specific For triode;The base stage of the triode connects the main control unit, and the collector connection power supply of the triode and second open It closes, the emitter ground connection of the triode;The both ends of the master control display connect the base stage and collector of the triode.
4. the touch key system according to claim 3 based on capacitance plate, which is characterized in that the second switch is specific For metal-oxide-semiconductor;The grid of the metal-oxide-semiconductor connects the collector of the triode, and the source electrode of the metal-oxide-semiconductor connects the master control list The drain electrode of member, the metal-oxide-semiconductor connects the secondary display.
5. the touch key system according to claim 4 based on capacitance plate, which is characterized in that first enabling signal Specially high level signal, high level signal of the base stage reception from the main control unit of the triode, triode ON, The collector connection emitter ground connection of the triode, the collector level of the triode are pulled low, the grid of the metal-oxide-semiconductor Low level signal, the metal-oxide-semiconductor conducting are received, the secondary display is connected to main control unit;
First stop signal is specially low level signal, and the base stage of the triode is received from the low of the main control unit Level signal, triode are not turned on, and the collector of the triode receives the high level signal from power supply, the metal-oxide-semiconductor Grid receives high level signal, and the metal-oxide-semiconductor is not turned on, and the secondary display is not connected to main control unit.
6. the touch key system according to claim 5 based on capacitance plate, which is characterized in that the master control shows utensil Body is the diode group formed by first diode and the second diodes in parallel;The anode of the first diode connects the master Unit is controlled, cathode connects the collector of the triode;The anode of second diode connects the collector of the triode, Cathode connects the main control unit;The first diode and the second diode are light emitting diode;
When main control unit sends high level signal, the first diode conducting is described when main control unit transmission low level signal Second diode current flow.
7. the touch key system according to claim 6 based on capacitance plate, which is characterized in that the secondary display tool Body is third diode, and the third diode is specially light emitting diode;The anode of the third diode connects the MOS The drain electrode of pipe;When the main control unit sends the first enabling signal, the metal-oxide-semiconductor conducting;The main control unit sends second and opens Dynamic signal, the third diode current flow;The main control unit sends the second stop signal, and the third diode is not turned on.
8. the touch key system according to claim 7 based on capacitance plate, which is characterized in that when the main control unit is sent out The first enabling signal is sent, the first triode ON when the second triode is not turned on, touches the master control key, the master control list Member will send the first stop signal, and first triode is not turned on, second triode ON;
When the main control unit the second enabling signal of transmission, the third diode current flow, the secondary key is touched, it is described Main control unit sends the second stop signal, and the third diode is not turned on.
9. the touch key system according to claim 6 based on capacitance plate, which is characterized in that the first diode tool Body is blue light diode, and second diode is specially red diodes.
10. the touch key system as claimed in any of claims 1 to 9 based on capacitance plate, which is characterized in that institute It states secondary key and is at least arranged one.
CN201821735941.XU 2018-10-25 2018-10-25 A kind of touch key system based on capacitance plate Active CN209526707U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109309491A (en) * 2018-10-25 2019-02-05 厦门厦华科技有限公司 Touch key system based on capacitance plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109309491A (en) * 2018-10-25 2019-02-05 厦门厦华科技有限公司 Touch key system based on capacitance plate
CN109309491B (en) * 2018-10-25 2024-05-14 厦门厦华科技有限公司 Touch key system based on capacitive screen

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