CN218158788U - Intelligent touch switch - Google Patents

Abstract

The utility model discloses an intelligent touch switch, which comprises a main control unit, a network unit, a power supply unit, a touch unit, an error touch prevention unit and a power supply/network interface; the main control unit comprises a singlechip; the touch unit comprises a plurality of groups of touch components, each touch component comprises a capacitance touch module and a color lamp control module corresponding to the capacitance touch module, the capacitance touch module and the color lamp control module are respectively connected with corresponding pins of the single chip microcomputer, and the capacitance touch module is provided with a touch switch; the false touch prevention unit comprises a vibration sensing circuit and a plurality of groups of false touch prevention components respectively corresponding to the plurality of groups of touch components. The utility model adopts the CAN bus protocol and the LoRa protocol to carry out network transmission, and CAN realize accurate control; the area acted by the touch switch and the state of the touch switch can be prompted through the arrangement of the color lamp control module; through the design of preventing mistake and touching the unit, can prevent that the user from opening touch switch because of unexpected striking by mistake, have stability height, practicality are strong and low cost's advantage.

Description

Intelligent touch switch

Technical Field

The utility model belongs to the technical field of the on-off control technique and specifically relates to relate to intelligent touch switch.

Background

In order to prolong the service life of the switch, touch switches are developed by some manufacturers at present, and the touch switches realize induction control through touch induction chips, so that the touch switches have the advantages of attractiveness, intelligence and convenience compared with traditional mechanical switches. However, the existing touch switch still has the following disadvantages: 1. the touch switch is not provided with a prompt structure, so that a user cannot easily and quickly know a touch area, the situations of invalid touch and insufficient touch can occur, and when the lamp is not on after the touch, the user cannot distinguish whether the lamp is in a problem or in the insufficient touch; 2. in practice, the touch switch is easily mistakenly started due to accidental collision, so that not only is the electric resource wasted, but also the user experience is influenced. 3. The existing touch switch mostly adopts a 2.4G frequency transmission mode, such as ZigBee protocol transmission and WIFI protocol transmission, and the existing touch switch cannot be accurately controlled if signal interference occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the above-mentioned problem of prior art, providing intelligent touch switch.

The purpose of the utility model is realized mainly through the following technical scheme:

the intelligent touch switch comprises a main control unit, a network unit, a power supply unit, a touch unit, an anti-false touch unit and a power supply/network interface;

the main control unit comprises a singlechip;

the touch unit comprises a plurality of groups of touch components, each touch component comprises a capacitance touch module and a color lamp control module corresponding to the capacitance touch module, the capacitance touch module and the color lamp control module are respectively connected with corresponding pins of the single chip microcomputer, and the capacitance touch module is provided with a touch switch;

the false touch prevention unit comprises a vibration sensing circuit and a plurality of sets of false touch prevention switch circuits which respectively correspond to the touch assemblies; the vibration sensing circuit comprises a vibration sensor, one end of the vibration sensor is connected to the positive output end of the power supply unit through a first vibration current-limiting resistor, the other end of the vibration sensor is grounded through a second vibration current-limiting resistor, and a vibration sensing pin of the single chip microcomputer is connected between the vibration sensor and the second vibration current-limiting resistor; the mistaken touch prevention switch circuit comprises a mistaken touch prevention switch MOS tube and a mistaken touch prevention filter capacitor, a grid electrode of the mistaken touch prevention switch MOS tube is connected to a corresponding pin of the single chip microcomputer through a recovery-prevention current-limiting resistor, a source electrode of the mistaken touch prevention switch MOS tube is connected to an anode output end of the power supply unit, a drain electrode of the mistaken touch prevention switch MOS tube is connected to a power supply pin of the capacitor touch module, one end of the mistaken touch prevention filter capacitor is connected between the capacitor touch module and the mistaken touch prevention switch MOS tube, and the other end of the mistaken touch prevention filter capacitor is grounded.

Further, the false touch prevention unit further comprises a recovery buzzer circuit, the recovery buzzer circuit comprises a recovery triode, a recovery freewheeling diode and a recovery buzzer, the base of the recovery triode is connected into the buzzer pin of the single chip microcomputer through a recovery current-limiting resistor, the emitter of the recovery triode is grounded, the collector of the recovery triode is connected into the cathode end of the recovery buzzer, the anode end of the recovery buzzer is connected into the anode output end of the power supply unit, and the two ends of the recovery freewheeling diode are reversely connected onto the anode end and the cathode end of the recovery buzzer.

Furthermore, the network unit comprises a wired network unit, the wired network unit comprises a CAN isolation module connected with the single chip microcomputer and a CAN transceiver module connected with the CAN isolation module, and a CANH pin and a CANL pin of the CAN transceiver module are connected with corresponding pins of the power supply/network interface.

Further, the network unit also comprises a wireless network unit, and the wireless network unit comprises an loRa control module connected with the single chip microcomputer.

Furthermore, the power supply unit comprises a 5V-to-3.3V power supply module and a 5V-to-3.3V isolation module, and the input end of the 5V-to-3.3V power supply module and the input end of the 5V-to-3.3 isolation module are respectively connected to corresponding pins of the power supply/network interface.

Furthermore, the power supply unit further comprises a power decoupling module, and the power decoupling module is connected to the output end of the 5V-to-3.3V power supply module.

Furthermore, the touch unit comprises three groups of touch components, namely a first touch component, a second touch component and a third touch component.

Furthermore, the device also comprises a debugging interface connected with the singlechip.

Furthermore, the single chip microcomputer is also connected with a crystal oscillator.

Furthermore, a surge protector is connected to a CANH pin and a CANL pin of the CAN transceiver module.

The utility model discloses following beneficial effect has: the utility model adopts the CAN bus protocol and the LoRa protocol to carry out network transmission, and CAN realize accurate control; can indicate the region that touch switch acted on and touch switch's state (open or close) through the setting of color lamp control module, so, can let the user acquire the touch region fast and know whether touch target in place. Through the design of the mistaken touch preventing unit, the touch switch can be prevented from being turned on by the user mistakenly due to accidental impact, and the waste of electric resources is avoided. Wherein, through the setting of recovering buzzing circuit, can the person of facilitating the use know the electric capacity touch module whether resume the power supply state, can effectively promote user experience and feel. It is thus clear that the utility model has the advantages of stability is high, the practicality is strong and low cost.

Drawings

Fig. 1 is a frame diagram of an intelligent touch switch according to the present invention;

fig. 2 is a circuit diagram of a single chip microcomputer in the intelligent touch switch according to the present invention;

fig. 3 is a schematic diagram of a crystal oscillator in an intelligent touch switch according to the present invention;

fig. 4 is a circuit diagram of a debugging interface in the intelligent touch switch according to the present invention;

fig. 5 is a schematic diagram of a power/network interface in an intelligent touch switch according to the present invention;

fig. 6 is a circuit diagram of a 5V to 3.3V power supply module in the intelligent touch switch of the present invention;

fig. 7 is a circuit diagram of an isolation module for converting 5V to 3.3V in the intelligent touch switch according to the present invention;

fig. 8 is a circuit diagram of a power decoupling module in the intelligent touch switch according to the present invention;

fig. 9 is a circuit diagram of a capacitive touch module 1 (a capacitive touch module in a first set of touch components) in the intelligent touch switch according to the present invention;

fig. 10 is a circuit diagram of the capacitive touch module 2 in the intelligent touch switch according to the present invention;

fig. 11 is a circuit diagram of the capacitive touch module 3 in the intelligent touch switch according to the present invention;

fig. 12 is a circuit diagram of a color lamp control module 1 (a color lamp control module in a first group of touch components) in the intelligent touch switch according to the present invention;

fig. 13 is a circuit diagram of the color lamp control module 2 in the intelligent touch switch of the present invention;

fig. 14 is a circuit diagram of the color lamp control module 3 in the intelligent touch switch of the present invention;

fig. 15 is a circuit diagram of a vibration sensing circuit in the smart touch switch according to the present invention;

fig. 16 is a circuit diagram of a recovery buzzer circuit in the intelligent touch switch of the present invention;

fig. 17 is a circuit diagram of the LoRa control module in the smart touch switch of the present invention;

fig. 18 is a circuit diagram of a CAN transceiver module in the smart touch switch of the present invention;

fig. 19 is a circuit diagram of a CAN isolation module in the intelligent touch switch.

The names corresponding to the reference numbers in the drawings are as follows: 1. the device comprises a main control unit, a 2 network unit, a 3 power supply unit, a 4 touch unit, a 5 false touch prevention unit, a6 singlechip, a 7V-to-3.3V power supply module, a 8V-to-3.3 isolation module, a 9 CAN isolation module, a 10 CAN transceiver module, a 11 LoRa control module, a 12 capacitor touch module, a 13 color lamp control module, a 14 crystal oscillator, a 15 vibration sensing circuit, a 16 vibration recovery buzzing circuit, a 17 power decoupling module, a 18 false touch prevention switch circuit.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Example 1

As shown in fig. 1-19, the intelligent touch switch includes a main control unit 1, a network unit 2, a power supply unit 3, a touch unit 4, an anti-false touch unit 5, and a power supply/network interface P1;

the main control unit 1 comprises a singlechip 6;

the touch unit 4 comprises a plurality of groups of touch components, each touch component comprises a capacitance touch module 12 and a color lamp control module 13 corresponding to the capacitance touch module 12, the capacitance touch module 12 and the color lamp control module 13 are respectively connected with corresponding pins of the single chip microcomputer 6, and the capacitance touch module 12 is provided with a touch switch;

the false touch prevention unit 5 comprises a vibration sensing circuit 15 and a plurality of sets of false touch prevention switch circuits respectively corresponding to the plurality of sets of touch components; the vibration sensing circuit 15 comprises a vibration sensor U9, one end of the vibration sensor U9 is connected to the positive electrode output end of the power supply unit 3 through a first vibration current-limiting resistor R9, the other end of the vibration sensor is grounded through a second vibration current-limiting resistor R10, and a vibration sensing pin of the single chip microcomputer 6 is connected between the vibration sensor and the second vibration current-limiting resistor R10; the mistaken touch prevention switch circuit comprises a mistaken touch prevention switch MOS tube and a mistaken touch prevention filter capacitor, a grid electrode of the mistaken touch prevention switch MOS tube is connected to a corresponding pin of the single chip microcomputer 6 through a recovery-prevention current-limiting resistor, a source electrode of the mistaken touch prevention switch MOS tube is connected to an anode output end of the power supply unit 3, a drain electrode of the mistaken touch prevention switch MOS tube is connected to a power supply pin of the capacitor touch module 12, one end of the mistaken touch prevention filter capacitor is connected between the capacitor touch module 12 and the mistaken touch prevention switch MOS tube, and the other end of the mistaken touch prevention filter capacitor is grounded.

In the main control unit, as shown in fig. 2, the single chip microcomputer 6 selects STC32G12K128, has a super-high-speed 32-bit 8051 kernel (1T), is about 70 times faster than the conventional 8051, has 49 interrupt sources, has 4-level interrupt priority, and supports online simulation. In addition, STC32G12K128 has a maximum of 128 kbyte FLASH program memory (ROM) for storing user codes.

In the touch unit 4, the capacitive touch module 12 drives the indoor lighting to be turned on or off by sensing capacitance fluctuation generated by human body parts. The capacitive touch module 12 can select a VKD223DH/TTP223-BA6 chip, as shown in fig. 9, the touch switch K1 can be connected to pin 3 of the capacitive touch module 12, and a touch bypass capacitor C1 can be reserved at the pin 3, and can perform filtering processing on an input signal to reduce high-frequency noise in a circuit, thereby ensuring normal operation of the circuit. Preferably, the touch unit 4 includes three sets of touch components, namely a first touch component, a second touch component and a third touch component, as shown in fig. 9-11.

The color lamp control module 13 is used for prompting the area acted by the touch switch, namely, indoor light can be turned on when a user needs to contact the area; the color lamp control module 13 can also be used to prompt the status of the touch switch. The color lamp control module 13 can be WS2812B, which is an intelligent control LED light source, and the control circuit and the RGB chip are integrated in a 5050 package. The intelligent digital port data latch and signal shaping amplification driving circuit is internally included. The LED display device also comprises a precise internal oscillator and a voltage programmable constant current control part, and the light color height of the pixel points is effectively ensured to be consistent. Each capacitive touch module 12 is equipped with a color lamp control module 13 as shown in fig. 12-14.

In the false touch prevention unit 5, the vibration sensor may be BL _2500. When the touch assembly is provided with three sets, correspondingly, the false touch prevention switch circuit should also be provided with three sets. Wherein, prevent mistake and touch switch MOS pipe optional SI2307DS.

In the application of the present embodiment, taking the capacitive touch module 12 in fig. 9 as an example, when the touch switch K1 is not touched (i.e. the touch switch is not turned on), the colored light control module 13 shown in fig. 12 emits a little light, and the area surrounded by the light-emitting area is the area that can be sensed by the touch switch. After the user touches the switch K1, the capacitive touch module 12 transmits the instruction to the single chip microcomputer 6, and then the single chip microcomputer 6 transmits a corresponding instruction to the corresponding color lamp control module 13, so that the light of the color lamp control module 13 changes to prompt the user that the user has touched the position. Meanwhile, the single chip microcomputer 6 also transmits the information to the controller of the indoor light through the network unit 2 to turn on the specific light. When the user is unusual when touching touch switch, for example, when striking touch switch suddenly, this striking sense can be sensed to the shock transducer to singlechip 6 conveying corresponding instruction, prevent mistake by singlechip 6 again to three groups and prevent mistake among the mistake touch subassembly and touch switch MOS pipe N1, N2, N3 and all export the high level, prevent mistake and touch switch MOS pipe N1, N2, N3 then can cut off, at this moment, three electric capacity touch module 12 then all is in the outage state, and then can't start the control of indoor light. The built-in program of the singlechip 6 should set the priority of the vibration power failure and the touch switch, and should also set the recovery time of preventing the false touch in advance, for example, set to 1S and 2S. After the recovery time, the user can normally switch.

Preferably, the false touch prevention unit 5 further comprises a recovery buzzer circuit, the recovery buzzer circuit comprises a recovery triode Q1, a recovery freewheeling diode D1 and a recovery buzzer, the base of the recovery triode Q1 is connected to the buzzer pin of the single chip microcomputer 6 through a recovery current-limiting resistor R8, the emitter of the recovery triode Q1 is grounded, the collector of the recovery triode Q1 is connected to the cathode of the recovery buzzer, the anode of the recovery buzzer is connected to the anode output end of the power supply unit 3, and the two ends of the recovery freewheeling diode D1 are reversely connected to the anode and the cathode of the recovery buzzer.

As mentioned above, when the touch switch K1 (K2, K3) is accidentally bumped, the capacitive touch module 12 will have a short power-off time, and the recovery buzzer circuit in this embodiment is used to prompt that the power supply of the capacitive touch module 12 is recovered. As shown in fig. 16, specifically, when the recovery time of the false touch is up, the single chip microcomputer 6 outputs a high level to the recovery transistor Q1, and the recovery buzzer sounds to prompt the user. Wherein, the recovery freewheeling diode D1 is used to absorb the reverse induced electromotive force that may occur to protect the recovery buzzer.

Preferably, the network unit 2 includes a wired network unit, the wired network unit includes a CAN isolation module 9 connected to the single chip 6 and a CAN transceiver module 10 connected to the CAN isolation module 9, and a CANH pin and a CANL pin of the CAN transceiver module 10 are connected to corresponding pins of the power supply/network interface P1.

In this embodiment, the network unit 2 is a CAN bus, which is a short for controller area network, and is a serial communication network capable of implementing distributed real-time control. The method has strong robustness to faults and electromagnetic interference of the subsystem, and has the advantages of low cost, high efficiency and high flexibility. The controller of the indoor light is also connected to the CAN bus, so that the single chip microcomputer 6 transmits data to the CAN bus and CAN drive the controller to switch on and off the specific light.

The single chip 6 is internally provided with a CAN bus control module, and is externally provided with a CAN isolation module 9 and a CAN transceiver module 10. The CAN isolation module 9 CAN adopt pi 122M31; the CAN transceiver module 10 may select SN65HVD232DR.

Preferably, a surge protector U8 is further connected to the CANH pin and the CANL pin of the CAN transceiver module 10. As shown in fig. 5, the surge protector U8 CAN be a PESD1CAN-U, which CAN prevent electrostatic breakdown to achieve the effect of protecting components, and specifically, when the CANH line voltage is too high, the pins 1 and 3 of the surge protector U2 CAN be turned on and grounded; when the CANL line voltage is too high, pins 2 and 3 of the surge protector U2 can be turned on and grounded.

Preferably, the network unit 2 further includes a wireless network unit, and the wireless network unit includes an LoRa control module 11 connected to the single chip microcomputer 6.

In this embodiment, as shown in fig. 17, the LoRa control module 11 may be optionally used as SX1278. The wireless network element may be complementary to the wired network element. When the wired network unit fails, the wireless network unit can complete the transmission of information.

Preferably, the power supply unit 3 includes a 5V to 3.3V power supply module 7, a 5V to 3.3 V isolation module 8,5V to 3.3V power supply module 7, and an input of the 5V to 3.3V isolation module 8, which are respectively connected to corresponding pins of the power supply/network interface P1.

In this embodiment, as shown in fig. 5, the power supply/network interface P1 is connected to a +5V power supply and a +5v _1isolated power supply. The 5V-to-3.3V power supply module 7 is used for reducing the voltage of a +5V power supply to a 3.3V power supply, CAN select CAT6219-330TD, and CAN supply power to the singlechip 6, the touch assembly, the false touch buzzer circuit, the vibration sensing circuit and the CAN isolation module 9. The 5V to 3.3V isolation module 8 is used to drop the +5v _1isolation power to the +3.3v _1isolation power, which CAN supply power to the CAN isolation module 9.

Preferably, the power supply unit 3 further comprises a power supply decoupling module 17, and the power supply decoupling module 17 is connected to the output end of the 5V to 3.3V power supply module 7.

The power decoupling module 17 can provide a stable power supply, and simultaneously can reduce the noise of the component coupled to the power end, and indirectly can reduce the influence of the noise of the component on other components. As shown in fig. 8, two decoupling capacitors C22 and C24 are included in parallel.

Preferably, the system further comprises a debugging interface P2 connected with the singlechip 6. The debug interface P2 may be used to download programs and debug.

Preferably, the single chip microcomputer 6 is further connected with a crystal oscillator 14. The crystal oscillator 14 can provide a stable clock for the single chip microcomputer 8. As shown in fig. 3, the crystal oscillator 14 may use 32MHz.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.

Claims (10)

1. Intelligence touch switch, its characterized in that: the touch control system comprises a main control unit (1), a network unit (2), a power supply unit (3), a touch unit (4), an error touch prevention unit (5) and a power supply/network interface (P1);

the main control unit (1) comprises a singlechip (6);

the touch unit (4) comprises a plurality of groups of touch components, each touch component comprises a capacitance touch module (12) and a colored lamp control module (13) corresponding to the capacitance touch module (12), the capacitance touch module (12) and the colored lamp control module (13) are respectively connected with corresponding pins of the single chip microcomputer (6), and the capacitance touch module (12) is provided with a touch switch;

the false touch prevention unit (5) comprises a vibration sensing circuit and a plurality of sets of false touch prevention switch circuits which respectively correspond to the plurality of sets of touch components; the vibration sensing circuit comprises a vibration sensor, one end of the vibration sensor is connected to the positive electrode output end of the power supply unit (3) through a first vibration current-limiting resistor (R9), the other end of the vibration sensor is grounded through a second vibration current-limiting resistor (R10), and a vibration sensing pin of the single chip microcomputer (6) is connected between the vibration sensor and the second vibration current-limiting resistor (R10); the mistaken touch prevention switch circuit comprises a mistaken touch prevention switch MOS tube and a mistaken touch prevention filter capacitor, a grid electrode of the mistaken touch prevention switch MOS tube is connected into a corresponding pin of the single chip microcomputer (6) through a recovery-prevention current-limiting resistor, a source electrode of the mistaken touch prevention switch MOS tube is connected into an anode output end of the power supply unit (3), a drain electrode of the mistaken touch prevention switch MOS tube is connected into a power supply pin of the capacitor touch module (12), one end of the mistaken touch prevention filter capacitor is connected between the capacitor touch module (12) and the mistaken touch prevention switch MOS tube, and the other end of the mistaken touch prevention filter capacitor is grounded.

2. The smart touch switch of claim 1, wherein: prevent that mistake from touching unit (5) still including resumeing buzzer circuit, resume buzzer circuit including resumeing triode (Q1), resumeing freewheel diode (D1) and resumeing bee calling organ, the base of resumeing triode (Q1) is inserted through resumeing current-limiting resistor (R8) the buzzing pin of singlechip (6), the emitter ground of resumeing triode (Q1), the collecting electrode of resumeing triode (Q1) inserts the negative pole end of resumeing bee calling organ, the positive pole end of resumeing bee calling organ inserts the anodal output of electrical unit (3), the both ends of resumeing freewheel diode (D1) are the anti-joint on the positive pole end and the negative pole end of resumeing bee calling organ.

3. The smart touch switch of claim 1, wherein: the network unit (2) comprises a wired network unit, the wired network unit comprises a CAN isolation module (9) connected with the single chip microcomputer (6) and a CAN transceiving module (10) connected with the CAN isolation module (9), and a CANH pin and a CANL pin of the CAN transceiving module (10) are connected to corresponding pins of the power supply/network interface (P1).

4. The smart touch switch of claim 3, wherein: the network unit (2) further comprises a wireless network unit, and the wireless network unit comprises a LoRa control module (11) connected with the single chip microcomputer (6).

5. The smart touch switch of claim 1, wherein: the power supply unit (3) comprises a 5V-to-3.3V power supply module (7) and a 5V-to-3.3V isolation module (8), wherein the input end of the 5V-to-3.3V power supply module (7) and the input end of the 5V-to-3.3V isolation module (8) are respectively connected to corresponding pins of the power supply/network interface (P1).

6. The smart touch switch of claim 5, wherein: the power supply unit (3) further comprises a power decoupling module (17), and the power decoupling module (17) is connected to the output end of the power supply module (7) for converting 5V to 3.3V.

7. The smart touch switch of claim 1, wherein: the touch unit (4) comprises three groups of touch components, namely a first touch component, a second touch component and a third touch component.

8. The smart touch switch of claim 1, wherein: and the debugging device also comprises a debugging interface (P2) connected with the singlechip (6).

9. The smart touch switch of claim 1, wherein: the single chip microcomputer (6) is also connected with a crystal oscillator (14).

10. The smart touch switch of claim 3, wherein: and a surge protector (U8) is connected to a CANH pin and a CANL pin of the CAN transceiving module (10).

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