CN220928089U - Automatic urine flushing control device - Google Patents

Abstract

The utility model relates to the technical field of bathroom equipment, and particularly discloses an automatic urine flushing control device which comprises a Doppler motion sensing module, a solenoid valve, a timing module, a main control module and a power supply module, wherein the Doppler motion sensing module is arranged at the upper part of a urinal and used for detecting urine flow in the urinal or movement of personnel in front of the urinal by microwaves, the solenoid valve is arranged at a water inlet pipe of the urinal and used for controlling on-off of a water path in the water inlet pipe, the timing module is electrically connected with the Doppler motion sensing module, the main control module is in communication connection with the Doppler motion sensing module and used for controlling the working state of the solenoid valve, the power supply module is electrically connected with the main control module, and the solenoid valve is electrically connected with the main control module. According to the device, the Doppler motion sensing module is arranged at the upper part of the urinal and used for detecting the urine flowing or personnel moving condition of the urine area, the timing module is combined and used for judging whether a person flushes the toilet according to the urine flowing time or the personnel moving time, the detection result is not influenced by the pipe wall thickness of the sewer pipe, and the detection sensitivity is high and the reliability is good.

Description

Automatic urine flushing control device

Technical Field

The utility model relates to the technical field of bathroom equipment, in particular to an automatic urine flushing control device.

Background

The common toilet or urinal flushing system in the market is usually opened or closed by pressing a flushing switch by a user's hand or foot, but in public places, especially in places such as hospitals and stations where bacteria cross infection is easy to occur, the risk of people infecting bacteria or viruses is increased by pressing the switch by the hand; and the flushing switch is easy to be blocked after being stepped on by a large force, so that water is continuously discharged, and water resource waste is caused. At present, although a flushing system for detecting the condition of a person in a toilet to flush water is realized through microwave induction in the market, the flushing system mainly comprises a microwave sensor arranged in a sewer pipe of a urinal, and the condition of urine flowing in the sewer pipe is detected through microwaves to judge whether the person is in the toilet or not so as to flush water further, so that the induction flushing of the urinal is realized, the problems of cross infection in public places and blocking of a flushing switch are avoided, and the flushing convenience and the flushing sensitivity of the urinal are improved. However, along with the extension of the service time of the urinal, dirt caused by urine dirt or other impurities will appear in the sewer pipe, so that the pipe wall thickness of the sewer pipe is uneven, the condition of inaccurate detection of a microwave sensor will appear, and then the problem of false flushing or no flushing is caused, the sensitivity of a urinal flushing system is reduced, the reliability is insufficient, and inconvenience is brought to people in using the toilet.

Disclosure of utility model

In view of the above, it is necessary to provide an automatic urine flushing control device having high sensitivity and high reliability.

The utility model provides an automatic controlling means that washes by water of urine, including being used for installing in urinal upper portion and microwave detection urine flow in the urinal or the personnel before the urinal remove Doppler motion sensing module, be used for installing in urinal inlet tube department and control the solenoid valve of the interior water circuit break-make of inlet tube, with Doppler motion sensing module electric connection's timing module, with Doppler motion sensing module communication connection and according to Doppler motion sensing module testing result control solenoid valve operating condition's main control module, with main control module electric connection's power module, solenoid valve and main control module electric connection.

In one embodiment, the Doppler motion sensing module is provided with a flat directional antenna, and the flat directional antenna corresponds to a urine area in the urinal.

In one embodiment, the Doppler motion sensing module is disposed on the back of the urinal and is located on the upper portion of the urinal.

In one embodiment, the power supply module is a dry cell.

In one embodiment, the microwave frequency used for detection by the Doppler motion sensing module is 5.8GHz + -75 MHz.

In one embodiment, the automatic urine flushing control device further comprises an electric quantity detection module electrically connected with the power supply module and the main control module.

In one embodiment, the automatic urine flushing control device further comprises an indicator light electrically connected with the main control module.

In one embodiment, the doppler motion sensing module is connected with the main control module through a communication mode based on a wireless communication protocol or through a serial port.

In one embodiment, the main control module comprises a communication module and an MCU, wherein the communication module is respectively connected with the Doppler motion sensing module and the MCU, and the MCU is connected with the electromagnetic valve.

In one embodiment, the communication module is one of a bluetooth module, a wifi module, or a Zigbee module.

According to the automatic urine flushing control device, the Doppler motion sensing module is arranged at the upper part of the urinal, and by detecting the urine flowing or personnel moving condition of a urine area and combining the timing module, whether a person is in the toilet or not is judged according to the urine flowing time or the personnel moving time, and flushing is carried out.

Drawings

FIG. 1 is a schematic view showing the structure of a urine automatic flushing control device after installation in accordance with an embodiment of the present utility model;

FIG. 2 is a block diagram of a urine automatic flush control device according to an embodiment of the present utility model;

FIG. 3 is a schematic block diagram of a urine automatic flush control device according to an embodiment of the present utility model;

Figure 4 is a block diagram of a doppler motion sensing module in accordance with one embodiment of the present utility model;

FIG. 5 is a schematic diagram of signal waveforms of main nodes in a receiving unit according to an embodiment of the present utility model;

fig. 6 is a timing diagram showing the triggering of the automatic urine and excrement flushing control device according to an embodiment of the present utility model.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, the utility model discloses an automatic urine flushing control device with high sensitivity and good reliability, wherein the automatic urine flushing control device 10 comprises a doppler motion sensing module 100 which is arranged at the upper part of a urinal 20 and used for detecting the urine flow in the urinal 20 or the movement of personnel in front of the urinal 20 by microwaves, an electromagnetic valve 200 which is arranged at a water inlet pipe of the urinal 20 and used for controlling the on-off of a water path in the water inlet pipe, a timing module 300 which is electrically connected with the doppler motion sensing module 100, a main control module 400 which is in communication connection with the doppler motion sensing module 100 and used for controlling the working state of the electromagnetic valve 200 according to the detection result of the doppler motion sensing module 100, and a power supply module 500 which is electrically connected with the main control module 400, wherein the electromagnetic valve 200 is electrically connected with the main control module 400. Preferably, the power supply module 500 is a dry battery, which reduces the electricity consumption cost of the automatic urine flushing control device 10, and prevents the urinal 20 from being unable to flush water when a power failure occurs. It is further preferred that the power module 500 comprises 4 1.5V dry cells, so that it can operate for 1.5 years, calculated as 300 times per day of use (flush).

The doppler motion sensing module 100 of the present embodiment detects the movement of a person or the flow of urine by transmitting a microwave signal, and the automatic urine flushing control device can detect the movement of a person as a condition for determining the presence of a toilet, or can detect the flow of urine as a condition for determining the presence of a toilet. In addition, in order to avoid the problem of misjudgment of the doppler motion sensing module 100 caused by such special situations, in this embodiment, the timing module 300 is provided to record the duration of the urine flow signal or the personnel movement signal detected by the doppler motion sensing module 100, i.e. combine the generation of the signal with the duration of the signal, thereby improving the reliability of detection of the toilet condition of the personnel. Preferably, the timing module 300 may be a timer or a clock electrically connected to the main control module 400.

The doppler motion sensing module 100 detects the motion of the object by using the doppler effect that the frequency variation of the reflected wave is related to the motion speed of the transmitting object, and in this embodiment, the doppler motion sensing module 100 is disposed at the back of the urinal and at the upper portion of the urinal. The Doppler motion sensing module 100 is arranged at the back of the urinal and is positioned at the upper part of the urinal, so that the problems of high installation cost and easy damage of the urinal caused by slotting on the ceramic urinal are avoided, and on the other hand, the Doppler motion sensing module 100 is arranged at the upper part of the urinal, so that people or liquid movement signals in the urinal area can be conveniently collected. In this embodiment, the doppler motion sensing module 100 is provided with a planar directional antenna, and the planar directional antenna corresponds to the urine area in the urinal. Further, the microwave frequency used for detection by the Doppler motion sensing module 100 is 5.8GHz + -75 MHz.

Referring to fig. 4 and fig. 5, in an embodiment, the doppler motion sensing module 100 includes a transmitting unit 110 and a receiving unit 120, wherein the transmitting unit 110 includes a dielectric oscillator 111 for generating an X-band frequency sinusoidal oscillation signal, and a transmitting antenna 112 connected to the dielectric oscillator 111 and used for radiating the sinusoidal oscillation signal into free space; the receiving unit 120 includes a receiving antenna 121 for receiving the frequency-shifted signal reflected by the sinusoidal oscillation signal, a local dielectric oscillator 122 for generating the local oscillation signal having the same frequency as the dielectric oscillator 111, a mixer 123 connected to the receiving antenna 121 and the local dielectric oscillator 122, respectively, for mixing the local oscillation signal with the frequency-shifted signal to generate an intermediate frequency signal, an active filter 124 connected to the mixer 123, for amplifying and filtering the intermediate frequency signal, and a single chip microcomputer 125 connected to the active filter 124, and outputting a control signal, the single chip microcomputer 125 being communicatively connected to the main control module 400, so as to transmit the detected movement signal of the person or the flow signal of the urine to the main control module 400. In this embodiment, the transmitting antenna 112 and the receiving antenna 121 are integrated into a planar directional antenna.

Specifically, when the doppler motion sensing module 100 is used to detect a moving object, the medium oscillator 111 generates a sinusoidal oscillation signal with a preset frequency, and radiates the sinusoidal oscillation signal to free space via the transmitting antenna 112, when electromagnetic waves in the free space encounter a moving object, scattering phenomenon occurs on the surface of the moving object, part of the electromagnetic energy reaches the receiving antenna 121 through reflection on the surface of the moving object, according to the doppler effect principle, the reflected electromagnetic waves generate doppler shift, the magnitude of the shift depends on the speed of the moving object, the reflected shift signal mixes with the mixer 123 through which the oscillation signal generated by the local medium oscillator 122 passes to generate an intermediate frequency signal, the intermediate frequency signal is amplified and filtered by the active filter 124 of the control processing board and then is sent to the singlechip 125, and the singlechip 125 determines whether the moving object is found or not according to the comparison result of the sampling value and the reference threshold and outputs a corresponding control signal. When detecting that the urine flowing speed in the urine area is slow or the moving speed of the personnel is slow, the singlechip 125 sends a high-level opening control signal to the main control module 400, and the main control module 400 controls the electromagnetic valve 200 to act so as to automatically flush; the flush is automatically closed when no related action is detected.

In this embodiment, the positive and negative interfaces of the main control module 400 are connected to the electromagnetic valve 200, the doppler motion sensing module 100 transmits sinusoidal oscillation signals with frequency of X-band or C-band to the urination area in real time, the X-band adopts sinusoidal oscillation signals with frequency of 10.525GHz or 10.687GHz, the C-band adopts sinusoidal oscillation signals with frequency of 5.8GHz, and meanwhile receives frequency shift signals generated by reflection of the sinusoidal oscillation signals, so as to determine that liquid flows or personnel move in the urination area. When the Doppler motion sensing module 100 receives a frequency shift signal generated by reflection of a sinusoidal oscillation signal, an electric signal is sent to the main control module 400, the main control module 400 controls the timing module 300 to start timing and the main control module 400 enters a pre-flushing execution program, when the main control module 400 continuously receives a motion signal sent by the Doppler motion sensing module 100 for a preset time period, the main control module 400 judges that a person urinates, after the continuous signal is ended, a flushing signal at an anode outlet and a cathode outlet of the main control module 400 controls the electromagnetic valve 200 to flush water, the timing module 300 clocks the flushing action again, and after the preset time period of flushing, a signal at an anode outlet and a cathode outlet of the main control module 400 stops flushing to control the electromagnetic valve 200 to stop flushing, so that the flushing action is completed once. Preferably, in this embodiment, the solenoid valve 200 is a pulse solenoid valve 200 connected to the urinal flusher to control the on-off of the inlet pipe. In this embodiment, the judgment of the urination ending signal is based on that the doppler motion sensing module 100 does not detect the motion signal within a continuous preset time.

Referring to fig. 6, in the operation of the automatic urine flushing control device, the doppler motion sensing module 100 performs a water closing operation immediately after being powered on, i.e. the solenoid valve 200 is controlled to be closed, so as to avoid the initial value of the solenoid valve 200 being opened. After 15s of initialization, the Doppler motion sensing module 100 enters a working state, continuously detects a motion signal of a urination area, and enters a toilet-like action detection flow. When the Doppler motion sensing module 100 detects that the continuous motion signal exceeds 3s, the Doppler motion sensing module judges that a person exists, namely, enters a flushing judgment flow; when the doppler motion sensing module 100 does not detect motion or the duration of the detected motion does not exceed 3s, it determines that no person is present, and continues to detect. When the flushing judgment flow is entered, the doppler motion sensing module 100 continues to detect no motion signal for 3 seconds, that is, the toilet operation of the person is finished, the doppler motion sensing module 100 controls the electromagnetic valve 200 to flush water, after the flushing for 3 seconds, the doppler motion sensing module 100 controls the electromagnetic valve 200 to close, that is, the flushing operation is completed once, and the next toilet operation detection flow is entered.

In one embodiment, the automatic urine flushing control device further includes an electric quantity detection module 600 electrically connected to the power supply module 500 and the main control module 400. Further, the automatic urine flushing control device further comprises an indicator light 700 electrically connected with the main control module 400. In the process of the operation of the automatic urine flushing control device, the electric quantity detection module 600 monitors the voltage of the power supply module 500 in real time, when the voltage of the power supply module 500 is lower than 4V, the automatic urine flushing control device enters a low electric quantity prompt mode, at this time, the main control module 400 controls the electric quantity of the indicator lamp 700 or continuously blinks, and in this mode, even if the doppler motion sensing module 100 detects the toilet action, the main control module 400 no longer controls the electromagnetic valve 200 to flush.

It should be noted that, in an embodiment, the doppler motion sensing module 100 and the main control module 400 are connected through a communication manner based on a wireless communication protocol or through a serial port. Further, the main control module 400 includes a communication module and an MCU, the communication module is connected with the doppler motion sensing module 100 and the MCU, and the MCU is connected with the electromagnetic valve 200. Preferably, the communication module is one of a bluetooth module, a wifi module or a Zigbee module. Further preferably, the doppler motion sensing module 100 is bluetooth connected with the main control module 400. The MCU of this embodiment employs a microcontroller of model STM8S003F3P 6.

By means of the automatic urine flushing control device 10, the Doppler motion sensing module 100 is arranged at the upper part of the urinal 20, and by detecting the urine flowing or personnel moving condition of a urine area and combining the timing module 300, whether a person is in the toilet or not is judged according to the urine flowing time or the personnel moving time, flushing is carried out, the detection result is not influenced by the pipe wall thickness of the sewer pipe, the detection sensitivity is high, the reliability is good, the problem of false flushing or water leakage of the urinal 20 caused by misjudgment of the flushing device is reduced, and the toilet experience of people is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (6)

1. The automatic urine flushing control device is characterized by comprising a Doppler motion sensing module, an electromagnetic valve, a timing module, a main control module and a power supply module, wherein the Doppler motion sensing module is arranged at the upper part of a urinal and is used for detecting urine flow in the urinal or movement of personnel in front of the urinal by microwaves;

The Doppler motion sensing module is provided with a flat directional antenna, and the flat directional antenna corresponds to a urine area in the urinal;

The Doppler motion sensing module is arranged at the back of the urinal and is positioned at the upper part of the urinal;

The device also comprises an electric quantity detection module electrically connected with the power supply module and the main control module and an indicator lamp electrically connected with the main control module.

2. The automatic urine flushing control device of claim 1, wherein the power supply module is a dry cell.

3. The automatic urine flushing control device of claim 2, wherein the doppler motion sensing module is configured to detect microwaves at a frequency of 5.8GHz ± 75MHz.

4. The automatic urine flushing control device of claim 3, wherein the doppler motion sensing module is connected with the main control module by a communication mode based on a wireless communication protocol or by a serial port.

5. The automatic urine flushing control device according to claim 4, wherein the main control module comprises a communication module and an MCU, the communication module is respectively connected with the Doppler motion sensing module and the MCU, and the MCU is connected with the electromagnetic valve.

6. The automatic urine flushing control device of claim 5, wherein the communication module is one of a bluetooth module, a wifi module, or a Zigbee module.