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 farther than the blind area distance measurement interval, and the second distance measurement interval is farther than 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 present invention relates to the technical field of intelligent detection equipment, and in particular to an energy-saving infrared sensing device and a toilet. Background Art

[0002] Existing smart toilets are equipped with more sensors and electronic control components that perform corresponding actions, which consume more 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, with relatively fewer sensors 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 usually do not require electricity, and there is usually no socket near the toilet that is connected to the mains. If the user needs to replace the smart toilet, they also need to rearrange the wires in the bathroom, which is why smart toilets cannot be used in old-style decoration environments. Therefore, manufacturers consider configuring energy storage components on light smart toilets to power the electrical components, which can solve the problem of difficulty in connecting to the mains. However, the energy stored in the energy storage components is limited, and how to reduce the power consumption of the electrical components is another major problem.

[0004] Existing smart toilets can detect whether the user is standing or sitting on the toilet. Standing on the toilet usually means urinating. The control module in the smart toilet can reduce the conduction opening of the water tank valve body, allowing a small amount of water to pass through to complete the flushing of the toilet, while a relatively large amount of water is required for flushing when the toilet is used while sitting. Smart toilets use ranging components to detect the distance between the user and the user. When the user sits on the toilet, the ranging component detects that the user is close, and when the user stands on the toilet, the ranging component detects that the user is far away. In the past, there were many ways to use ranging components, such as using a laser radar probe, multi-angle scanning and the reflected laser power to obtain the distance between the user, or using an infrared sensor probe and a signal analysis chip. The infrared light emitted by the infrared sensor probe is reflected by an object and then received again by the infrared sensor probe to form an electrical signal. The signal analysis chip is required to analyze the strength of the electrical signal to obtain the distance between the user and the user. In the above methods, the power consumption of the laser radar probe and the signal analysis chip is large, and the electrical energy stored in the energy storage component is difficult to meet the long-term power supply. In addition, the toilet is usually equipped with a rotatable toilet lid. When the toilet lid is opened, 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 emission range of the distance measuring component, which will cause the control module to misjudge and execute the flushing action. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing 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 convenient and reliable to use.

[0006] According to the first aspect of the present invention, an 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 transmitter and a first infrared receiver, the first base shell having a first installation cavity with a first light-through port, the first infrared transmitter and the first infrared receiver being both located in the first installation cavity, an installation distance being provided between the first infrared transmitter and the first infrared receiver, infrared rays emitted by the first infrared transmitter 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 present invention has at least the following beneficial effects:

[0008] The energy-saving infrared sensing device of the present invention 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 in the second ranging interval, the infrared ray 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 in the first ranging interval, the infrared ray 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 ray 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, no interference is caused to the detection of the first infrared sensing module and the second infrared sensing module. The design can reduce 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 disposed in the first base shell between the front of 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 transmitter and a second infrared receiver, the second base shell has a second mounting cavity with a second light passage, the second infrared transmitter and the second infrared receiver are both located in the second mounting cavity, the second lens is arranged at the second light passage, the infrared ray emitted by the second infrared transmitter is emitted through the second light passage, and the infrared ray can be received by the second infrared receiver after being reflected by an object located in the second ranging interval.

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

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

[0015] The toilet of the present invention applies the energy-saving infrared sensing device disclosed in any of the above-mentioned embodiments. When the user stands to use the toilet, the user is located in the second ranging interval, can be detected by the second infrared sensing module and feedback an electrical signal. When the user sits to use the toilet, the user is located in the first ranging interval, can be detected by the first infrared sensing module and feedback an electrical signal. When the toilet cover on the toilet covers the toilet, since the toilet cover is close to the toilet and is located in the blind ranging interval, the first infrared sensing module will not feedback 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 invention, 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 comprises 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 in part will be obvious from the following description, or will be 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a three-dimensional schematic diagram of one embodiment of the toilet of the present invention;

[0023] Figure 2 A schematic diagram of one embodiment of the toilet of the present invention in a standing state of use;

[0024] Figure 3 A schematic diagram of one embodiment of a 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 toilet of the present invention;

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

[0027] Figure 6 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 invention;

[0028] Figure 7 A schematic structural diagram of one embodiment of a toilet according to the present invention.

[0029] Reference numerals:

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

[0031] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood 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 and 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, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 7As shown, according to the energy-saving infrared sensing device of the first aspect of the present invention, the first infrared sensing module 100 and the second infrared sensing module 200 are included. 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 transmitter 120 and a first infrared receiver 130. The first base shell 110 has a first installation cavity 112 with a first light-through port 111. The first infrared transmitter 120 and the first infrared receiver 130 are provided with a first mounting cavity 112 having a first light-through port 111. 30 are both located in the first installation cavity 112, and there is an installation distance 113 between the first infrared transmitter 120 and the first infrared receiver 130. The infrared ray emitted by the first infrared transmitter 120 is emitted through the first light opening 111. The infrared ray can be received by the first infrared receiver 130 after being reflected by an object located in the first ranging interval 310, while the infrared ray cannot be received by the first infrared receiver 130 after being reflected by an object located in the blind ranging interval 330. 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 body, and the installer then installs the mounting base body 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 transmitter 120 and the first infrared receiver 130. After the first infrared transmitter 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 transmitter 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 transmitter 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 interval 113 between the first infrared transmitter 120 and the first infrared receiver 130, or adjusting the relative exit or incident angle between the first infrared transmitter 120 and the first infrared receiver 130, the range of the first ranging interval 310 and the blind ranging interval 330 can be changed.

[0039] The energy-saving infrared sensing device of the present invention uses a first infrared sensing module 100 and a 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 200, thereby forming a feedback electrical signal. In group 100, a feedback electrical signal is formed, and when the 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 the object located in the blind ranging interval 330 from triggering the first infrared receiver 130 to feedback an electrical signal, 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 object 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 object 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 plate arranged in the first installation cavity 112 of the first base shell 110, and the baffle plate is located between the front of the first infrared emitter 120 and the first infrared receiver 130, or it can be located in the installation interval 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 transmitter and a second infrared receiver, the second base shell having a second mounting cavity with a second light passage, the second infrared transmitter and the second infrared receiver are both located in the second mounting cavity, the second lens is arranged at the second light passage, the infrared ray emitted by the second infrared transmitter is emitted through the second light passage, and the infrared ray can be received by the second infrared receiver after being reflected by an object located in the second ranging interval 320.

[0043] There is also an installation spacing 113 between the second infrared transmitter 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 transmitter 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 based on 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 transmitter 120 and the second infrared transmitter can select components with the same or similar specifications, and use the same or similar driving circuits and power supplies to drive the first infrared transmitter 120 and the second infrared transmitter 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 a toilet according to a second aspect of the present invention, Figures 1 to 7 As shown, it includes the energy-saving infrared sensing device disclosed in any of the above embodiments.

[0049] The toilet of the present invention applies the energy-saving infrared sensing device disclosed in any of the above-mentioned embodiments. When the user stands to use the toilet, 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 sits to use the toilet, 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 cover 420 on the toilet covers the toilet, since the toilet cover 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, and 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 a CPU and its associated circuits. The water tank valve body 600 may adopt a conventional solenoid valve, which respectively connects 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 utilize a semiconductor switch tube to drive the solenoid valve on and off, and change the size of the conduction opening by adjusting the size of the working current output to the water tank valve body 600 through the switch tube.

[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 sheets are 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 0.2 mW.

[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 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 , and when the toilet cover 420 is closed relative to the toilet seat 410 , the toilet cover 420 is located within the blind spot 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 uses it standing or sitting, the toilet cover 420 is flipped close to the water tank and leans on 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 rays emitted by the second infrared sensing module 200 are reflected by the object and then returned 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 it can be known that the user is standing to use the toilet. After the user has finished using the toilet, the control module 500 controls the water tank valve body 600 to open the flushing with a small conduction opening, such as Figure 3 , Figure 5 As shown, when the user uses the toilet in a sitting position, when the user is in the first distance measuring interval 310, the infrared rays emitted by the first infrared sensing module 100 are reflected by the object and then returned 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 using the toilet in a sitting position. After the user has finished 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, and 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 into 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the range recorded in this specification.

[0057] Although 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 the embodiments without departing from the principles and spirit of the present invention, the scope of the present invention being defined by the claims and their equivalents.

Claims

1. Energy-saving infrared sensing device, characterized in that: include: A first infrared sensing module has a first ranging interval and a blind ranging interval, the first ranging interval is farther than the blind ranging interval, the first infrared sensing module comprises a first base shell, a first infrared transmitter and a first infrared receiver, the first base shell has a first mounting cavity with a first light-through port, the first infrared transmitter and the first infrared receiver are both located in the first mounting cavity, there is a mounting distance between the first infrared transmitter and the first infrared receiver, infrared rays emitted by the first infrared transmitter are emitted through the first light-through port, the infrared rays are reflected by an object located in the first ranging interval and can be received by the first infrared receiver, while the infrared rays are reflected by an object located in the blind ranging interval and cannot be 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 between the front of the first infrared transmitter and the first infrared receiver, and the shielding member can prevent the infrared rays reflected by the object 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 transmitter and a second infrared receiver. The second base shell has a second mounting cavity with a second light-through port. The second infrared transmitter 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 rays emitted by the second infrared transmitter are emitted through the second light-through port. The infrared rays are 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: It comprises the energy-saving infrared sensing device as described in 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 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, 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.

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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