CN110145630B - Induction water outlet device and signal detection method - Google Patents
Induction water outlet device and signal detection method Download PDFInfo
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- CN110145630B CN110145630B CN201910380558.XA CN201910380558A CN110145630B CN 110145630 B CN110145630 B CN 110145630B CN 201910380558 A CN201910380558 A CN 201910380558A CN 110145630 B CN110145630 B CN 110145630B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Domestic Plumbing Installations (AREA)
Abstract
The invention relates to the field of bathroom equipment, and provides a water induction and discharge device and a signal detection method, wherein the water induction and discharge device comprises: the electromagnetic valve is connected in series with the water outlet channel; the sensing device comprises a first sensor, a second sensor and an operational amplifier circuit, wherein the first sensor and the second sensor respectively comprise a transmitter and a receiver; the receiver of the first sensor and the receiver of the second sensor are respectively connected to the signal input end of the operational amplifier circuit; and the control device is connected with the sensing device and the electromagnetic valve and is used for controlling the electromagnetic valve to realize different water outlet modes according to the output signal of the operational amplifier circuit. The water induction device at least receives signals of the receivers of the two sensors through one operational amplifier circuit, so that the multiple sensors can share one operational amplifier circuit, the circuit structure is simplified, and the devices and the cost of the circuit are reduced.
Description
Technical Field
The invention relates to the field of bathroom equipment, in particular to a sensing water outlet device and a signal detection method.
Background
The sensing faucet is widely applied to the field of bathrooms, and the existing sensing faucet detects a sensing signal of a human body through a sensor arranged inside the faucet and controls the faucet to discharge water according to the detected sensing signal. In order to facilitate use, sensors are respectively arranged at different positions of the existing induction faucet, and the sensors at different positions correspond to different water outlet modes. However, the number of sensors is increased, and peripheral circuits (such as signal amplification circuits) required by the sensors are increased correspondingly, so that the circuits are more complicated, and the volume and the production cost of the induction faucet are increased.
Disclosure of Invention
Therefore, an induction water outlet device and a signal detection method are needed to be provided for solving the technical problems of complex circuit and high production cost of the existing multi-sensor induction water outlet device.
In order to achieve the above object, the present invention provides an induction water outlet device, comprising:
the electromagnetic valve is connected in series with the water outlet channel and is used for controlling the water outlet of the water outlet channel;
the sensing device comprises a first sensor, a second sensor and an operational amplifier circuit, wherein the first sensor and the second sensor respectively comprise a transmitter and a receiver; the receiver of the first sensor and the receiver of the second sensor are respectively connected to the signal input end of the operational amplifier circuit, and the transmitter of the first sensor and the transmitter of the second sensor work alternately;
and the control device is connected with the sensing device and the electromagnetic valve and is used for controlling the electromagnetic valve to realize different water outlet modes according to the output signal of the operational amplifier circuit.
Further, the control device is respectively connected with the emitter of the first sensor and the emitter of the second sensor and controls the emitters of the first sensor and the second sensor to work alternately;
the control device is connected with the signal output end of the operational amplifier circuit, and judges that the output signal of the operational amplifier circuit is the receiver signal of the first sensor or the receiver signal of the second sensor according to the states of the transmitter of the first sensor and the transmitter of the second sensor when the output signal of the operational amplifier circuit is received.
Furthermore, the control device comprises a single chip microcomputer chip, and the single chip microcomputer chip is respectively connected with the emitter of the first sensor, the emitter of the second sensor and the signal output end of the operational amplifier circuit.
Further, the first sensor and the second sensor are respectively an infrared sensor or a microwave sensor.
Further, the operational amplifier circuit comprises a single-channel low-voltage operational amplifier circuit.
Furthermore, the induction water outlet device is an external water outlet device and comprises a joint for connecting a water outlet of the faucet, and the joint is communicated with an inlet of the water outlet channel.
Furthermore, the induction water outlet device is of a columnar structure, the water outlet channel penetrates through two ends of the columnar structure, and the first sensor is arranged at the water outlet end of the induction water outlet device and used for detecting an induction signal at the water outlet end of the induction water outlet device; the second sensor is arranged on the side surface of the induction water outlet device and used for detecting an induction signal of the side surface of the induction water outlet device.
Further, the electromagnetic valve is a bistable electromagnetic valve.
In order to solve the above technical problem, the present invention further provides another technical solution:
a signal detection method of a water induction device comprises a first sensor and a second sensor, wherein the first sensor and the second sensor respectively comprise a transmitter and a receiver, and the signal detection method of the water induction device comprises the following steps:
controlling the emitter of the first sensor and the emitter of the second sensor to work alternately;
receiving signals of a receiver of the first sensor and a receiver of the second sensor through the same operational amplifier circuit;
and judging the signal to be a first sensor detection signal or a second sensor signal according to the moment when the operational amplifier circuit receives the input signal.
Further, the step of determining that the signal is the detection signal of the first sensor or the signal of the second sensor according to the time when the operational amplifier circuit receives the input signal specifically includes:
and judging whether the output signal of the operational amplifier circuit is a receiver signal of the first sensor or a receiver signal of the second sensor according to the states of the transmitter of the first sensor and the transmitter of the second sensor when the output signal of the operational amplifier circuit is received.
Different from the prior art, the technical scheme at least receives signals of the receivers of the two sensors through one operational amplifier circuit and controls the transmitters of the at least two sensors to work alternately so as to identify which sensor the signals received by the operational amplifier circuit are, therefore, the circuit can realize that the sensors share one operational amplifier circuit, simplify the circuit structure and reduce the devices and the cost of the circuit.
Drawings
FIG. 1 is a block diagram of an induction water outlet apparatus according to an embodiment;
FIG. 2 is a schematic diagram of the position of a first sensor and a second sensor in the induction water outlet apparatus according to an embodiment;
FIG. 3 is a circuit diagram of a sensor emitter in the induction water outlet apparatus according to an embodiment;
FIG. 4 is a circuit diagram of a sensor receiver in the induction water outlet apparatus according to the embodiment;
fig. 5 is a timing diagram illustrating an operation of the water induction and output device according to the embodiment of the present invention.
Description of reference numerals:
10. a control device;
20. an induction device;
21. a first sensor;
22. a second sensor;
30. an electromagnetic valve;
40. managing a power supply;
100. a water outlet device shell;
101. a water inlet;
102. a water outlet;
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The embodiment provides a response water installation, and the response water installation is provided with induction system for detect human inductive signal, and according to the work of the inductive signal control water installation that detects. For example, the sensing device of the sensing water outlet device is provided with an infrared sensor, and the infrared sensor detects a sensing signal generated by a hand of a human body and controls the water outlet device to open and close water outlet.
Referring to fig. 1 and 2, the water sensing apparatus includes a control device 10, a sensing device 20, an electromagnetic valve 30, and a power management circuit 40 (i.e., a power management circuit).
Wherein, be provided with out the water passageway in the response water installation, go out the water passageway and include water inlet 101 and delivery port 102, go out the water passageway and be used for being connected with water supply installation (for example water pipe or manipulator tap etc.), solenoid valve 30 connects in series in going out the water passageway, closes or switches on through controlling water passageway, and when going out the water passageway and switching on, the water installation goes out water, and when going out the water passageway and closing, the water installation stops out water.
The electromagnetic valve 30 and the sensing device 20 are respectively connected to the control device 10, the control device 10 includes an MCU and a driving circuit, the control device 10 is configured to receive a sensing signal detected by the sensing device and output a control signal according to the sensing signal, and the control signal is amplified by the driving circuit and then controls the electromagnetic valve to operate, thereby implementing the sensing control of the water outlet device.
As shown in fig. 1, the sensing device 20 includes a first sensor 21 and a second sensor 22, wherein, as shown in fig. 2, the first sensor 21 and the second sensor 22 are disposed at different positions of the housing 100 of the water outlet device for detecting human body sensing signals at different positions or directions of the water outlet device, and the control device 10 controls the electromagnetic valve to implement different water outlet modes according to the different sensing signals detected by the first sensor 21 and the second sensor 22. Preferably, as shown in fig. 2, the first sensor 21 is disposed at the water outlet end of the induction water outlet device and is used for detecting a human body induction signal at the water outlet end, and the second sensor 22 is disposed in the lateral direction of the induction water outlet device and is used for detecting a human body induction signal at the lateral side. The preferred working mode of the water outlet induction device is that when the first sensor 21 detects the induction signal of the water outlet end (namely, the hand of a person extends to the front end of the water outlet device), the water outlet induction device is controlled to discharge water, and when the induction signal disappears (namely, the hand is retracted), the water outlet induction device is controlled to stop discharging water immediately (or after a few seconds), namely, the water outlet by extending the hand is realized, and the water is stopped by retracting the hand; when the second sensor 22 detects the side sensing signal for the first time, the sensing water outlet device is controlled to discharge water, when the second sensor 22 detects the side sensing signal again, the sensing water outlet device is controlled to stop discharging water, that is, water is continuously discharged after the hand is swung at the side, and water is discharged after the hand is swung again.
The first sensor 21 and the second sensor 22 may be infrared sensors, and the first sensor 21 and the second sensor 22 respectively include a transmitter and a receiver, wherein the transmitter is configured to transmit an infrared signal outwards, the receiver is configured to receive the infrared signal, when there is no object in front of the first sensor 21 or the second sensor 22, the infrared signal transmitted by the transmitter is not received by the receiver, and when there is an object in front of the first sensor 21 or the second sensor 22, the signal transmitted by the transmitter is reflected and thus received by the receiver. And the receiver of the first sensor 21 and the receiver of the second sensor 22 are respectively connected to the signal input terminals of the operational amplifier circuit, and the input signals are amplified by the operational amplifier circuit and then sent to the control device. And controlling the electromagnetic valve to work according to the output signal of the operational amplifier circuit so as to realize different water outlet modes.
In this embodiment, the transmitter of the first sensor 21 and the transmitter of the second sensor 22 are both connected to the control device 10, and the receiver of the first sensor 21 and the receiver of the second sensor 22 are connected to the same operational amplifier circuit, and the received signals are amplified by the same operational amplifier circuit and then sent to the control device (i.e. the two receivers share one operational amplifier circuit). As shown in fig. 3, is a circuit diagram in which the control device is connected to the emitter of the first sensor 21 and the emitter of the second sensor 22. In the figure, U6 is an MCU of the control device 10, D9 is a transmitter of the first sensor 21, D3 is a transmitter of the second sensor, the transmitter D9 of the first sensor 21 is connected to a 18 th pin of the MCU (i.e., U6 in the figure), and the transmitter D3 of the second sensor is connected to a 17 th pin of the MCU (i.e., U6 in the figure), where the MCU may be a 51-chip microcomputer.
As shown in fig. 4, is a circuit diagram for connecting the control device to the receiver of the first sensor 21 and the receiver of the second sensor 22. Wherein D5 is the receiver of the first sensor 21, D8 is the receiver of the second sensor 21, and U2 is an operational amplifier circuit, the output terminals of the receiver D5 of the first sensor 21 and the receiver D8 of the second sensor 21 are both connected to the signal input terminal (i.e., pin 3 in the figure) of the operational amplifier circuit U2, the signal output terminal (i.e., pin 7) of the operational amplifier circuit U2 is connected to the network reference number PIR-OUT, and as can be seen from fig. 3, the network reference number PIR-OUT is connected to the 13 th pin of the MCU (i.e., U6 in the figure), i.e., the signal output terminal of the operational amplifier circuit U2 is connected to the MCU (i.e., U6 in.
During detection, the control device 10 controls only one of the transmitters to operate at the same time, that is, the control device 10 controls the transmitter of the first sensor 21 and the transmitter of the second sensor 22 to operate alternately, and determines whether the signal is the signal detected by the first sensor 21 or the signal detected by the second sensor 22 according to the time when the output signal of the operational amplifier circuit is received. Specifically, as shown in fig. 5, during the period when the MCU is activated, the IR receiver enable, that is, the MCU receives the enable of the output signal of the operational amplifier circuit, and during this period, the MCU first controls the second sensor transmitter enable and the first sensor transmitter disable, during this period, the output signal of the operational amplifier circuit received by the MCU is the signal of the second sensor, and then the MCU controls the first sensor transmitter enable and the second sensor transmitter disable, during this period, the output signal of the operational amplifier circuit received by the MCU is the signal of the first sensor. And the MCU can judge that the detected signal is the signal of the first sensor 21 or the signal of the second sensor 22 by circulating the above time sequence, so that the double receivers share one operational amplifier circuit, the circuit structure of the water induction device is simplified, and the devices and the cost of the circuit are reduced.
Preferably, the operational amplifier circuit comprises a single-channel low-voltage operational amplifier circuit, and in an embodiment, the single-channel low-voltage operational amplifier circuit adopts an AT8637 chip.
As shown in fig. 2, in this embodiment, the induction water outlet device is an external water outlet device, and a water inlet 101 of the induction water outlet device is provided with a joint including a water outlet connection for a faucet, and the joint is communicated with an inlet of the water outlet channel. Therefore, the sensing water outlet device is connected to the water outlet of the mechanical faucet, the original mechanical faucet can be upgraded into the sensing faucet, the original mechanical faucet does not need to be detached in the upgrading process, and the waterway does not need to be changed. Preferably, in order to facilitate the connection of the induction water outlet device and the water faucet, the joint of the water inlet 101 of the induction water outlet device can be connected with a quick connector. As shown in fig. 1, for convenience of use, the induction water outlet device is further provided with a lithium battery and a battery management 40, and the lithium battery can supply power to circuits in the induction water outlet device, so that the induction water outlet device can be installed and used without modifying circuits in use places. Preferably, in order to reduce the power consumption of the water outlet device and prolong the service life of the lithium battery, the electromagnetic valve can be a bistable electromagnetic valve, so that the on or off state of the electromagnetic valve can be switched by only providing a pulse signal in a short time.
In another embodiment, the induction water outlet device can be used without being matched with an existing faucet, namely the induction water outlet device is an induction faucet which can be independently connected with a water pipe for use.
As shown in fig. 2, in an embodiment, the induction water outlet device is a cylindrical structure, a water outlet channel of the induction water outlet device penetrates through two ends of the cylindrical structure, that is, the water outlet channel penetrates through two ends of the housing 100 in the length direction, and a first sensor 21 is disposed at a water outlet end of the induction water outlet device and is configured to detect an induction signal at the water outlet end of the induction water outlet device; the second sensor 22 is disposed on a side surface of the induction water outlet device, and is configured to detect an induction signal induced on the side surface of the induction water outlet device.
In one embodiment, a signal detection method for an induction water device is provided. The water induction device comprises a first sensor and a second sensor, wherein the first sensor and the second sensor respectively comprise a transmitter and a receiver, the first sensor and the second sensor can be arranged on the water induction device and face different positions and are used for detecting induction signals of different positions, and the signal detection method of the water induction device comprises the following steps:
controlling the emitter of the first sensor and the emitter of the second sensor to work alternately;
receiving signals of a receiver of the first sensor and a receiver of the second sensor through the same operational amplifier circuit;
and judging the signal to be a first sensor detection signal or a second sensor signal according to the moment when the operational amplifier circuit receives the input signal.
The step of determining whether the signal is the detection signal of the first sensor or the signal of the second sensor according to the time when the operational amplifier circuit receives the input signal specifically includes:
and judging whether the output signal of the operational amplifier circuit is a receiver signal of the first sensor or a receiver signal of the second sensor according to the states of the transmitter of the first sensor and the transmitter of the second sensor when the output signal of the operational amplifier circuit is received.
As shown in fig. 5, which is a timing diagram of a signal detection method of the water induction device in a specific embodiment, the MCU controls signal detection of the first sensor and the second sensor, specifically, during the activation period of the MCU, the IR receives enable, that is, the MCU receives an output signal from the operational amplifier circuit to enable, and during this period, the MCU first controls the second sensor transmitter enable and the first sensor transmitter disable, at this stage, the output signal from the operational amplifier circuit received by the MCU is a signal from the second sensor, and then the MCU controls the first sensor transmitter enable and the second sensor transmitter disable, at this stage, the output signal from the operational amplifier circuit received by the MCU is a signal from the first sensor. And the MCU can judge that the detected signal is the signal of the first sensor 21 or the signal of the second sensor 22 by circulating the above time sequence, so that the double receivers share one operational amplifier circuit, the circuit structure of the water induction device is simplified, and the devices and the cost of the circuit are reduced.
It should be noted that, in the description of the present application, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless otherwise specified or indicated; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Claims (8)
1. An induction water outlet device, comprising:
the electromagnetic valve is connected in series with the water outlet channel and is used for controlling the water outlet of the water outlet channel;
the sensing device comprises a first sensor, a second sensor and an operational amplifier circuit, wherein the first sensor and the second sensor respectively comprise a transmitter and a receiver; the receiver of the first sensor and the receiver of the second sensor are respectively connected to the same signal input end of the operational amplifier circuit;
the control device is respectively connected with the emitter of the first sensor and the emitter of the second sensor and controls the emitters of the first sensor and the second sensor to work alternately;
the control device is connected with a signal output end of the operational amplifier circuit, and judges whether an output signal of the operational amplifier circuit is a receiver signal of the first sensor or a receiver signal of the second sensor according to the states of the transmitter of the first sensor and the transmitter of the second sensor when the output signal of the operational amplifier circuit is received; the control device is connected with the sensing device and the electromagnetic valve and is used for controlling the electromagnetic valve to realize different water outlet modes according to the output signal of the operational amplifier circuit.
2. The device of claim 1, wherein the control device comprises a single chip, and the single chip is connected to the emitter of the first sensor, the emitter of the second sensor, and the signal output terminal of the operational amplifier circuit.
3. The induction water outlet device according to claim 1, wherein the first sensor and the second sensor are each an infrared sensor.
4. The inductive water discharge device according to claim 1, wherein said operational amplifier circuit comprises a single channel low voltage operational amplifier circuit.
5. The induction water outlet device according to claim 1, wherein the induction water outlet device is an external water outlet device, and comprises a connector for connecting a water outlet of a faucet, and the connector is communicated with an inlet of the water outlet channel.
6. The induction water outlet device according to claim 5, wherein the induction water outlet device is a columnar structure, the water outlet channel penetrates through two ends of the columnar structure, and the first sensor is disposed at a water outlet end of the induction water outlet device and is configured to detect an induction signal at the water outlet end of the induction water outlet device; the second sensor is arranged on the side surface of the induction water outlet device and used for detecting an induction signal of the side surface of the induction water outlet device.
7. The inductive water outlet device according to claim 5, wherein the solenoid valve is a bistable solenoid valve.
8. A signal detection method of a water induction device, wherein the water induction device comprises a first sensor and a second sensor, the first sensor and the second sensor respectively comprise a transmitter and a receiver, and the signal detection method of the water induction device is characterized by comprising the following steps:
controlling the emitter of the first sensor and the emitter of the second sensor to work alternately;
receiving signals of the receiver of the first sensor and the receiver of the second sensor through the same signal input end of the same operational amplifier circuit;
judging whether the signal is a first sensor detection signal or a second sensor signal according to the moment when the operational amplifier circuit receives the input signal;
the step of determining whether the signal is the detection signal of the first sensor or the signal of the second sensor according to the time when the operational amplifier circuit receives the input signal specifically includes:
and judging whether the output signal of the operational amplifier circuit is a receiver signal of the first sensor or a receiver signal of the second sensor according to the states of the transmitter of the first sensor and the transmitter of the second sensor when the output signal of the operational amplifier circuit is received.
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| CN201910380558.XA CN110145630B (en) | 2019-05-08 | 2019-05-08 | Induction water outlet device and signal detection method |
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| CN201910380558.XA CN110145630B (en) | 2019-05-08 | 2019-05-08 | Induction water outlet device and signal detection method |
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| CN110578827B (en) * | 2019-09-09 | 2022-06-17 | 福建洁博利厨卫科技有限公司 | Induction water outlet device and pull type induction water outlet device |
| CN112120536A (en) * | 2020-09-25 | 2020-12-25 | 湖南龙新净水科技有限公司 | Non-contact water taking device |
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| CN107345838A (en) * | 2016-05-04 | 2017-11-14 | 浙江正泰电器股份有限公司 | The temperature collecting device and acquisition method of breaker |
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| JP2649934B2 (en) * | 1988-02-23 | 1997-09-03 | カヤバ工業株式会社 | Control device for proportional solenoid valve |
| WO2012125213A1 (en) * | 2011-03-15 | 2012-09-20 | Sloan Valve Company | Automatic faucets |
| CN205859325U (en) * | 2016-06-26 | 2017-01-04 | 张原赫 | A kind of auto-switch tap |
| CN206804103U (en) * | 2017-04-01 | 2017-12-26 | 上海物景智能科技有限公司 | A kind of Level monitor |
| CN208565708U (en) * | 2018-06-01 | 2019-03-01 | 福建洁博利厨卫科技有限公司 | A kind of intelligent tap of double induction water outlets |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107345838A (en) * | 2016-05-04 | 2017-11-14 | 浙江正泰电器股份有限公司 | The temperature collecting device and acquisition method of breaker |
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