Energy-saving infrared induction device and closestool

Abstract

The energy-saving infrared induction device comprises a first infrared induction module and a second infrared induction module, the first infrared induction module is provided with a first distance measurement interval and a blind area distance measurement interval, the first distance measurement interval is far away from the blind area distance measurement interval, and the second distance measurement interval is far away from the blind area distance measurement interval. The first infrared induction module comprises a first base shell, a first infrared transmitter and a first infrared receiver, the first base shell is provided with a first mounting cavity with a first light passing opening, and the first infrared transmitter and the first infrared receiver are both located in the first mounting cavity; a mounting distance is formed between the first infrared transmitter and the first infrared receiver, the second infrared sensing module is provided with a second distance measuring interval, the second distance measuring interval is farther than the first distance measuring interval, and on the basis that objects at different distances can be detected, energy consumption is reduced, and use is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent detection equipment, in particular to an energy-saving infrared sensing device and a toilet. Background Art

[0002] Existing smart toilets are equipped with a large number of sensor devices and electronic control components that perform corresponding actions, which require a lot of electricity. Therefore, smart toilets are basically powered by AC power and have a high cost, which is not conducive to promotion. Manufacturers are considering how to promote light smart toilets on the market. Light smart toilets only need to have basic functions such as automatic flushing, and have relatively few sensor devices and electronic control components. On the basis of meeting the basic needs of users, the cost of replacement is greatly reduced.

[0003] However, traditional toilets typically don't require electricity, and bathrooms often lack a mains power outlet near the toilet. Replacing a smart toilet with a smart one requires rewiring the bathroom's electrical wiring, which is why smart toilets haven't been widely adopted in older decorating environments. Therefore, manufacturers are considering integrating energy storage devices into lightweight smart toilets to power the electrical components, potentially resolving the mains power issue. However, the energy stored in energy storage devices is limited, so reducing the power consumption of these components presents a significant challenge.

[0004] Existing smart toilets can detect whether the user is standing or sitting. Standing users are typically urinating. The control module in smart toilets can reduce the conduction opening of the water tank valve, allowing a small amount of water to flush the toilet. Sitting users require a relatively large amount of water to flush. Smart toilets all use a distance-measuring component to detect the distance to the user. When the user is sitting, the distance-measuring component detects the user is close, while when the user is standing, the distance-measuring component detects the user is far away. Distance-measuring components have been used in various ways, such as using a laser radar probe that scans at multiple angles and measures the power of the reflected laser to determine the distance to the user. Alternatively, infrared sensors and signal analysis chips are used. Infrared rays emitted by the infrared sensor are reflected by an object and then received back by the infrared sensor, forming an electrical signal. The signal analysis chip analyzes the strength of the electrical signal to determine the distance to the user. These methods consume significant power, making the energy storage component insufficient for long-term power supply. In addition, the toilet is usually equipped with a rotatable toilet lid. When the toilet lid is open, the distance measuring component can detect the distance of the user. However, when the toilet lid is set on the toilet seat, the toilet lid blocks the output range of the distance measuring component, causing the control module to misjudge and execute the flushing action. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides an energy-saving infrared sensing device and a toilet, which can detect objects at different distances, reduce energy consumption, and are easy and reliable to use.

[0006] According to the first aspect of the present utility model, the energy-saving infrared sensing device includes: a first infrared sensing module, having a first ranging interval and a blind ranging interval, the first ranging interval being farther than the blind ranging interval, the first infrared sensing module including a first base shell, a first infrared emitter and a first infrared receiver, the first base shell having a first mounting cavity with a first light-through port, the first infrared emitter and the first infrared receiver being both located in the first mounting cavity, an installation distance being provided between the first infrared emitter and the first infrared receiver, infrared rays emitted by the first infrared emitter being emitted through the first light-through port, the infrared rays being reflected by an object located in the first ranging interval and being received by the first infrared receiver, while the infrared rays being reflected by an object located in the blind ranging interval and being not received by the first infrared receiver; a second infrared sensing module, having a second ranging interval, wherein the second ranging interval is farther than the first ranging interval.

[0007] The energy-saving infrared sensing device according to the embodiment of the utility model has at least the following beneficial effects:

[0008] The utility model discloses an energy-saving infrared sensing device, which utilizes a first infrared sensing module and a second infrared sensing module to form three ranging intervals of different distances. The second ranging interval is farther than the first ranging interval and farther than the blind ranging interval. When an object is within the second ranging interval, the infrared light emitted by the second infrared sensing module is reflected by the object and then returns to the second infrared sensing module, thereby forming a feedback electrical signal. When the object is within the first ranging interval, the infrared light emitted by the first infrared sensing module is reflected by the object and then returns to the first infrared sensing module, thereby forming a feedback electrical signal. When the object is in the blind ranging interval, the infrared light emitted by the first infrared sensing module is reflected by the object and then cannot be obtained by the first infrared sensing module, and no feedback electrical signal is generated. The first infrared sensing module and the second infrared sensing module themselves have low energy consumption, and when there are other objects in the blind ranging interval, they will not interfere with the detection of the first infrared sensing module and the second infrared sensing module. This design reduces energy consumption on the basis of being able to detect objects at different distances, and is convenient and reliable to use.

[0009] According to some embodiments of the present invention, a shielding member is provided in front of the first base shell between the first infrared transmitter and the first infrared receiver, and the shielding member can prevent infrared rays reflected by objects located in the blind ranging interval from being received by the first infrared receiver.

[0010] According to some embodiments of the present invention, the first infrared sensing module is provided with a first lens on the infrared light path, and the second infrared sensing module is provided with a second lens on the infrared light path, wherein the focal length of the second lens is longer than the focal length of the first lens so that the second ranging interval is farther than the first ranging interval.

[0011] According to some embodiments of the present invention, the first lens is disposed at the first light opening.

[0012] According to some embodiments of the present invention, the second infrared sensing module includes a second base shell, a second infrared emitter and a second infrared receiver, the second base shell has a second mounting cavity with a second light-passing port, the second infrared emitter and the second infrared receiver are both located in the second mounting cavity, the second lens is arranged at the second light-passing port, the infrared ray emitted by the second infrared emitter is emitted through the second light-passing port, and the infrared ray is reflected by an object located in the second ranging interval and can be received by the second infrared receiver.

[0013] The toilet according to the second embodiment of the present utility model includes the energy-saving infrared sensing device disclosed in any one of the above embodiments.

[0014] The toilet according to the embodiment of the utility model has at least the following beneficial effects:

[0015] The utility model toilet applies the energy-saving infrared sensing device disclosed in any of the above embodiments. When the user uses the toilet while standing, the user is located in the second ranging interval and can be detected by the second infrared sensing module and an electrical signal is fed back. When the user uses the toilet while sitting, the user is located in the first ranging interval and can be detected by the first infrared sensing module and an electrical signal is fed back. When the toilet lid covers the toilet, since the toilet lid is close to the toilet and is located in the blind ranging interval, the first infrared sensing module will not feed back an electrical signal and will not cause interference. This design can reduce energy consumption on the basis of being able to detect objects at different distances, and is convenient and reliable to use.

[0016] According to some embodiments of the present utility model, the toilet includes a toilet body, a control module and a water tank valve body, the energy-saving infrared sensing device is arranged on the toilet body, the control module is electrically connected to the first infrared sensing module, the second infrared sensing module and the water tank valve body, respectively, and the control module controls the conduction opening of the water tank valve body according to the feedback electrical signals of the first infrared sensing module and the second infrared sensing module.

[0017] According to some embodiments of the present invention, the toilet further includes an energy storage component detachably disposed on the toilet body, and the energy storage component is used to supply power to the control module, the first infrared sensing module, the second infrared sensing module and the water tank valve body.

[0018] According to some embodiments of the present invention, the toilet body includes a toilet seat, the first infrared sensing module and the second infrared sensing module are arranged on the upper surface of the toilet seat, and the directions of infrared rays emitted by the first infrared sensing module and the second infrared sensing module are inclined relative to the vertical direction.

[0019] According to some embodiments of the present invention, the toilet body includes a toilet seat and a toilet cover, the first infrared sensing module and the second infrared sensing module are arranged on the upper surface of the toilet seat, and the toilet cover is rotatably arranged on the toilet seat. When the toilet cover is closed relative to the toilet seat, the toilet cover is located in the blind spot ranging interval.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is a three-dimensional schematic diagram of one embodiment of the toilet of the present utility model;

[0023] Figure 2 This is a schematic diagram of one embodiment of the toilet of the present invention in a standing position;

[0024] Figure 3 This is a schematic diagram of one embodiment of the toilet of the present invention in a sitting position;

[0025] Figure 4 This is a schematic diagram of a toilet lid in a closed state according to one embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the distance measurement interval of one embodiment of the toilet of the utility model;

[0027] Figure 6 This is a schematic diagram of the internal structure of a first infrared sensing module of one embodiment of the energy-saving infrared sensing device of the present utility model;

[0028] Figure 7 A schematic diagram of the principle structure of one embodiment of the toilet of the present invention.

[0029] Reference numerals:

[0030] First infrared sensing module 100; first base shell 110; first light opening 111; first installation cavity 112; installation spacing 113; shielding member 114; first infrared emitter 120; first infrared receiver 130; first lens 140; second infrared sensing module 200; first ranging interval 310; second ranging interval 320; blind ranging interval 330; toilet body 400; toilet seat 410; toilet lid 420; control module 500; water tank valve body 600; energy storage member 700. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0034] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] like Figures 1 to 7As shown, the energy-saving infrared sensing device according to the first embodiment of the present utility model includes a first infrared sensing module 100 and a second infrared sensing module 200, the first infrared sensing module 100 has a first ranging interval 310 and a blind ranging interval 330, the first ranging interval 310 is farther than the blind ranging interval 330, the first infrared sensing module 100 includes a first base shell 110, a first infrared emitter 120 and a first infrared receiver 130, the first base shell 110 has a first mounting cavity 112 with a first light-through port 111, the first infrared emitter 120 and the first infrared receiver 130 are both located in the first mounting cavity 112, and there is an installation distance 113 between the first infrared emitter 120 and the first infrared receiver 130. The infrared ray emitted by the first infrared emitter 120 is emitted through the first light opening 111. The infrared ray is reflected by an object located in the first ranging interval 310 and can be received by the first infrared receiver 130, while the infrared ray is reflected by an object located in the blind ranging interval 330 and cannot be received by the first infrared receiver 130. The second infrared sensing module 200 has a second ranging interval 320, wherein the second ranging interval 320 is farther than the first ranging interval 310.

[0036] Among them, the first infrared sensing module 100 and the second infrared sensing module 200 can be installed in the same mounting base, and the installer then installs the mounting base on the equipment that needs to be configured. The first infrared sensing module 100 and the second infrared sensing module 200 can also be set separately, and the installer can separately remove the first infrared sensing module 100 or the second infrared sensing module 200 from the equipment. Generally speaking, the first infrared sensing module 100 and the second infrared sensing module 200 are located on the same mounting plane of the equipment.

[0037] It can be understood that, whether it is the first infrared sensing module 100 or the second infrared sensing module 200, the present design does not need to configure an additional chip or circuit for analyzing the strength of the infrared rays. The first infrared sensing module 100 and the second infrared sensing module 200 both emit infrared rays. When there is an object in the first ranging interval 310 or the second ranging interval 320, the infrared rays are reflected and then received by the corresponding first infrared sensing module 100 or the second infrared sensing module 200, a feedback electrical signal (such as a level signal) can be generated. The control module 500 can know that an object appears in the corresponding ranging interval by receiving the feedback electrical signal.

[0038] Therefore, it should be noted that Figure 6As shown, in the first base shell 110, there is an installation spacing 113 between the first infrared emitter 120 and the first infrared receiver 130. After the first infrared emitter 120 emits infrared rays, when the object is located in the first ranging interval 310, the infrared rays are irradiated on the object and then reflected. The infrared rays can be reflected just in the direction of the first infrared receiver 130. After the reflected infrared rays are received by the first infrared receiver 130, the first infrared receiver 130 generates a feedback electrical signal. When the object is close to the first infrared sensing module 100 and is located in the blind ranging interval 330, the first infrared emitter 120 Infrared rays are emitted at the same angle. After being reflected by an object, the infrared rays can only be reflected to the position between the first infrared emitter 120 and the first infrared receiver 130 and cannot be received by the first infrared receiver 130. Therefore, the first infrared receiver 130 does not generate a feedback electrical signal. Specifically, by adjusting the length of the installation distance 113 between the first infrared emitter 120 and the first infrared receiver 130, or adjusting the relative emission or incident angle between the first infrared emitter 120 and the first infrared receiver 130, the range of the first ranging interval 310 and the blind spot ranging interval 330 can be changed.

[0039] The energy-saving infrared sensing device of the present invention utilizes the first infrared sensing module 100 and the second infrared sensing module 200 to form three ranging intervals of different distances. The second ranging interval 320 is farther than the first ranging interval 310 and farther than the blind ranging interval 330. When an object is within the second ranging interval 320, the infrared ray emitted by the second infrared sensing module 200 is reflected by the object and then returns to the second infrared sensing module 200, thereby forming a feedback electrical signal. When the object is within the first ranging interval 310, the infrared ray emitted by the first infrared sensing module 100 is reflected by the object and then returns to the first infrared sensing module 100, thereby forming a feedback electrical signal. In the module 100, a feedback electrical signal is formed. When an object is in the blind ranging interval 330, the infrared light emitted by the first infrared sensing module 100 is reflected by the object and cannot be obtained by the first infrared sensing module 100, and no feedback electrical signal is generated. The first infrared sensing module 100 and the second infrared sensing module 200 themselves have low energy consumption, and when there are other objects in the blind ranging interval 330, they will not interfere with the detection of the first infrared sensing module 100 and the second infrared sensing module 200. This design reduces energy consumption on the basis of being able to detect objects at different distances, and is convenient and reliable to use.

[0040] In some embodiments of the present invention, Figure 6As shown, in order to more clearly define the boundary between the first ranging interval 310 and the blind ranging interval 330 and to prevent objects located in the blind ranging interval 330 from triggering the first infrared receiver 130 to feedback electrical signals as much as possible, the first base shell 110 is provided with a shielding member 114 between the first infrared transmitter 120 and the front of the first infrared receiver 130. The shielding member 114 can prevent the infrared rays reflected by the objects located in the blind ranging interval 330 from being received by the first infrared receiver 130, which is equivalent to the infrared rays reflected by the objects located in the blind ranging interval 330 being irradiated on the shielding member 114 and blocked by the shielding member 114 from entering the first infrared receiver 130.

[0041] Specifically, the shielding member 114 can be a baffle provided in the first mounting cavity 112 of the first base shell 110, and the baffle is located between the front of the first infrared emitter 120 and the first infrared receiver 130, or it can be located in the mounting spacing 113 between the first infrared emitter 120 and the first infrared receiver 130 and extend to the front of the first infrared emitter 120 and the first infrared receiver 130.

[0042] In some embodiments of the present invention, the second infrared sensing module 200 may also include a second base shell, a second infrared emitter and a second infrared receiver. The second base shell has a second mounting cavity with a second light-through port. The second infrared emitter and the second infrared receiver are both located in the second mounting cavity. The second lens is arranged at the second light-through port. The infrared ray emitted by the second infrared emitter is emitted through the second light-through port. The infrared ray is reflected by an object located in the second ranging interval 320 and can be received by the second infrared receiver.

[0043] There is also an installation spacing 113 between the second infrared emitter and the second infrared receiver in the second infrared sensing module 200, and a shielding member 114 may also be provided. The detection principle of the second infrared emitter and the second infrared receiver is basically the same as that of the first infrared sensing module 100. There is no need to additionally set up a chip or circuit for analyzing the strength of the infrared rays, and the power consumption is low.

[0044] In addition, according to the detection principle of the first infrared sensing module 100 and the second infrared sensing module 200, a feedback electrical signal can be generated when infrared rays are incident, and there is no need to detect the strength of the infrared rays. Therefore, it also has the effect of anti-color difference sensing, and the detection accuracy is not affected by the color of the object itself. That is, it can be understood that if a distance judgment method of detecting the strength of infrared rays is adopted, different objects have different colors and different abilities to absorb infrared rays, which will affect the judgment of the strength of the infrared rays and reduce the accuracy accordingly.

[0045] In some embodiments of the present invention, Figure 6As shown, the first infrared sensing module 100 is provided with a first lens 140 on the infrared light path, and the second infrared sensing module 200 is provided with a second lens on the infrared light path, wherein the focal length of the second lens is longer than the focal length of the first lens 140 so that the second ranging interval 320 is farther than the first ranging interval 310.

[0046] Both the first lens 140 and the second lens can be convex lenses. Due to the difference in focal length, the first ranging interval 310 of the first infrared sensing module 100 is formed near the focus of the first lens 140, and the second ranging interval 320 of the second infrared sensing module 200 is formed near the focus of the second lens. The first infrared emitter 120 and the second infrared emitter can select components with the same or similar specifications, and use the same or similar driving circuit and power supply to drive the first infrared emitter 120 and the second infrared emitter to emit infrared rays. Specifically, the driving circuit can be composed of a semiconductor switching tube. Similarly, the first infrared receiver 130 and the second infrared receiver can also select components with the same or similar specifications.

[0047] In some embodiments of the present invention, the first lens 140 is disposed at the first light opening 111 , and infrared rays are emitted through the first lens 140 and are incident on the first infrared receiver 130 through the first lens 140 .

[0048] According to the toilet of the second embodiment of the utility model, Figures 1 to 7 As shown, it includes the energy-saving infrared sensing device disclosed in any of the above embodiments.

[0049] The utility model toilet applies the energy-saving infrared sensing device disclosed in any of the above-mentioned embodiments. When the user uses the toilet while standing, the user is located in the second ranging interval 320, which can be detected by the second infrared sensing module 200 and an electrical signal can be fed back. When the user uses the toilet while sitting, the user is located in the first ranging interval 310, which can be detected by the first infrared sensing module 100 and an electrical signal can be fed back. When the toilet lid 420 on the toilet covers the toilet, since the toilet lid 420 is close to the toilet and is located in the blind ranging interval 330, the first infrared sensing module 100 will not feed back an electrical signal and will not cause interference. This design can reduce energy consumption on the basis of being able to detect objects at different distances, and is convenient and reliable to use.

[0050] In some embodiments of the present invention, Figure 7As shown, the toilet includes a toilet body 400, a control module 500 and a water tank valve body 600. The energy-saving infrared sensing device is arranged on the toilet body 400. The control module 500 is electrically connected to the first infrared sensing module 100, the second infrared sensing module 200 and the water tank valve body 600 respectively. The control module 500 controls the conduction opening of the water tank valve body 600 according to the feedback electrical signals of the first infrared sensing module 100 and the second infrared sensing module 200 respectively.

[0051] The control module 500 may include a processing chip such as an MCU or CPU and its associated circuits. The water tank valve body 600 may adopt a conventional solenoid valve, which is respectively connected to the inside of the water tank and the water outlet of the toilet body 400. The larger the conduction opening of the water tank valve body 600, the larger the flushing volume; the smaller the conduction opening of the water tank valve body 600, the smaller the flushing volume. The control module 500 may use a semiconductor switching tube to drive the solenoid valve on and off, and adjust the working current output to the water tank valve body 600 through the switching tube to change the size of the conduction opening.

[0052] In some embodiments of the present invention, the toilet also includes an energy storage component 700 detachably arranged on the toilet body 400, and the energy storage component 700 is used to supply power to the control module 500, the first infrared sensing module 100, the second infrared sensing module 200 and the water tank valve body 600. The energy storage component 700 can be a rechargeable battery or a dry cell. A battery box can be provided on the toilet, and the energy storage component 700 can be detachably installed in the battery box. A conductive sheet is provided in the battery box, and the conductive sheet is respectively connected to electrical components such as the control module 500, the first infrared sensing module 100, the second infrared sensing module 200 and the water tank valve body 600. The energy storage component 700 contacts the conductive sheet to supply power, and the specific static power consumption can be less than 0.2mW.

[0053] In some embodiments of the present invention, Figure 5 As shown, the toilet body 400 includes a toilet seat 410, and the first infrared sensing module 100 and the second infrared sensing module 200 are arranged on the upper surface of the toilet seat 410. The directions of the infrared rays emitted by the first infrared sensing module 100 and the second infrared sensing module 200 are inclined relative to the vertical direction, so that the infrared rays emitted by the first infrared sensing module 100 and the second infrared sensing module 200 can be directed toward the user in front of the toilet seat 410. When the user uses the toilet in a sitting position, the infrared rays can be emitted toward the back of the user, and when the user uses the toilet in a standing position, the infrared rays can be emitted toward the front of the user.

[0054] In some embodiments of the present invention, the toilet cover 420 is rotatably disposed on the toilet seat 410 . When the toilet cover 420 is closed relative to the toilet seat 410 , the toilet cover 420 is located within the blind ranging interval 330 .

[0055] It is understandable that the energy-saving infrared sensing device is arranged on the upper surface of the toilet seat 410 and is not covered by the seat plate. In normal use, whether the user is standing or sitting, the toilet lid 420 is flipped close to the water tank and leans against the water tank, which will not block the first infrared sensing module 100 and the second infrared sensing module 200. Figure 2 、 Figure 5 As shown, when the user stands to use the toilet, when the user is in the second ranging interval 320, the infrared light emitted by the second infrared sensing module 200 is reflected by the object and then returns to the second infrared sensing module 200, thereby forming a feedback electrical signal. The control module 500 receives the electrical signal input by the second infrared receiver and can know that the user is standing to use the toilet. After the user finishes using the toilet, the control module 500 controls the water tank valve body 600 to open the flushing with a small conduction opening, as shown in FIG. Figure 3 、 Figure 5 As shown, when the user is sitting on the toilet, when the user is in the first ranging interval 310, the infrared light emitted by the first infrared sensing module 100 is reflected by the object and then returns to the first infrared sensing module 100, thereby forming a feedback electrical signal. The control module 500 receives the electrical signal input by the first infrared receiver 130, and it can be known that the user is sitting on the toilet. After the user finishes using the toilet, the control module 500 controls the water tank valve body 600 to open the flushing with a large conduction opening, and as shown in FIG. Figure 4 、 Figure 5 As shown, when the toilet lid 420 is closed, the toilet lid 420 is located in the blind ranging interval 330. The toilet lid 420 will block the infrared rays emitted by the first infrared sensing module 100 and the second infrared sensing module 200, but the reflected infrared rays will not be reflected back to the first infrared sensing module 100 and the second infrared sensing module 200, so no feedback electrical signal will be generated, and the control module 500 will not drive the water tank valve body 600 to operate.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered as the range recorded in this specification.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Energy-saving infrared sensing device, characterized in that, include: a first infrared sensing module having a first ranging interval and a blind ranging interval, the first ranging interval being farther than the blind ranging interval; the first infrared sensing module comprising a first base housing, a first infrared emitter, and a first infrared receiver; the first base housing having a first mounting cavity with a first light-through opening; the first infrared emitter and the first infrared receiver being both located in the first mounting cavity; a mounting distance being provided between the first infrared emitter and the first infrared receiver; infrared light emitted by the first infrared emitter being emitted through the first light-through opening; the infrared light being reflected by an object located in the first ranging interval and being received by the first infrared receiver; and the infrared light being reflected by an object located in the blind ranging interval and not being received by the first infrared receiver; The second infrared sensing module has a second ranging interval, wherein the second ranging interval is farther than the first ranging interval.

2. The energy-saving infrared sensing device according to claim 1, characterized in that: The first base shell is provided with a shielding member in front of the first infrared emitter and the first infrared receiver, and the shielding member can prevent infrared rays reflected by objects located in the blind ranging interval from being received by the first infrared receiver.

3. The energy-saving infrared sensing device according to claim 1, characterized in that: The first infrared sensing module is provided with a first lens on the infrared light path, and the second infrared sensing module is provided with a second lens on the infrared light path, wherein the focal length of the second lens is longer than that of the first lens so that the second ranging interval is farther than the first ranging interval.

4. The energy-saving infrared sensing device according to claim 3, characterized in that: The first lens is disposed at the first light opening.

5. The energy-saving infrared sensing device according to claim 3, characterized in that: The second infrared sensing module includes a second base shell, a second infrared emitter and a second infrared receiver. The second base shell has a second mounting cavity with a second light-through port. The second infrared emitter and the second infrared receiver are both located in the second mounting cavity. The second lens is arranged at the second light-through port. The infrared ray emitted by the second infrared emitter is emitted through the second light-through port. The infrared ray is reflected by an object located in the second ranging interval and can be received by the second infrared receiver.

6. A toilet, characterized in that: The invention comprises the energy-saving infrared sensing device according to any one of claims 1 to 5.

7. The toilet according to claim 6, characterized in that It includes a toilet body, a control module and a water tank valve body. The energy-saving infrared sensing device is arranged on the toilet body. The control module is electrically connected to the first infrared sensing module, the second infrared sensing module and the water tank valve body respectively. The control module controls the conduction opening of the water tank valve body according to the feedback electrical signals of the first infrared sensing module and the second infrared sensing module respectively.

8. The toilet according to claim 7, characterized in that It also includes an energy storage component that is detachably arranged on the toilet body, and the energy storage component is used to supply power to the control module, the first infrared sensing module, the second infrared sensing module and the water tank valve body.

9. The toilet according to claim 7, characterized in that: The toilet body includes a toilet seat. The first infrared sensing module and the second infrared sensing module are arranged on the upper surface of the toilet seat. The directions of infrared rays emitted by the first infrared sensing module and the second infrared sensing module are inclined relative to the vertical direction.

10. The toilet according to claim 7, characterized in that The toilet body includes a toilet seat and a toilet cover. The first infrared sensing module and the second infrared sensing module are arranged on the upper surface of the toilet seat. The toilet cover is rotatably arranged on the toilet seat. When the toilet cover is closed relative to the toilet seat, the toilet cover is located in the blind spot ranging interval.

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