Hanging weight detection system based on air pressure detection and clothes airing machine

Abstract

The utility model discloses a hanging weight detection system based on air pressure detection and a clothes airing machine. The hanging weight detection system comprises a main machine side and an airing rod side. The host side comprises a main control module, a lifting module and an alarm module; the airing rod side comprises a sub-control module, an air pressure sensor and a pressure acquisition module; when an object is hung on the airing rod in a static state, the air pressure sensor on the airing rod side generates an electric signal related to pressure; the pressure acquisition module acquires an electric signal generated by the air pressure sensor through a wire rod, converts the electric signal into a corresponding weight value through the sub-control module, and then wirelessly transmits the weight value to the main control module on the host side; when the main control module compares the weight value with the specified weight value of the airing rod, if the weight value exceeds the specified weight value, the main control module informs a user of reducing the weight of the clothes hung on the airing rod through the alarm module, so that the clothes airing machine is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of clothes drying machines and controls thereof, and particularly relates to a hanging weight detection system based on air pressure detection and a clothes drying machine. Background Art

[0002] A smart clothes drying machine is a daily drying appliance powered by a lifting motor. It consists of a main unit, a clothes drying rod, and a control system. It provides convenient drying services for home users while reducing space waste. As living standards improve, users are increasingly demanding the convenience and intelligence of smart clothes drying machines.

[0003] Weight detection is one of the manifestations of intelligence. By assessing the weight of the clothes hanging on the clothes drying rod, the user is promptly informed of the clothes hanging rod's carrying capacity, thus preventing damage to the smart clothes drying machine due to overload. In the prior art, weight detection for smart clothes drying machines generally involves evaluating the weight of the clothes hanging on the clothes drying rod by the current changes in the lifting motor during the clothes drying machine's ascent. When the weight of the clothes hanging on the clothes drying rod exceeds the carrying capacity, an alarm is issued to prompt the user to reduce the weight in time. However, when the lifting motor is running, due to multiple factors such as motor heating, motor speed, motor speed resistance, and ambient temperature, its current changes greatly, causing the error of the current sampling circuit to be amplified, making the collected current very inaccurate, resulting in a larger error in the corresponding weight. Summary of the Invention

[0004] The main purpose of the present invention is to overcome the deficiencies of the prior art and provide a hanging weight detection system and a clothes drying machine based on air pressure detection, which can detect the pressure of the clothes drying rod and then judge the hanging weight of the clothes drying rod to avoid damage to the clothes drying machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The hanging weight detection system based on air pressure detection includes the main machine side and the drying rod side;

[0007] The host side includes a main control module, a lifting module and an alarm module; the main control module is connected to the lifting module and the alarm module respectively;

[0008] The drying rod side includes a sub-control module, an air pressure sensor and a pressure acquisition module; the sub-control module is connected to the pressure acquisition module; the pressure acquisition module is connected to the air pressure sensor;

[0009] The lifting module is provided with a steel wire rope; the air pressure sensor is installed at the connection between the drying rod and the steel wire rope;

[0010] The sub-control module converts the electrical signal of the air pressure sensor collected by the pressure collection module into a corresponding weight value and transmits it to the main control module;

[0011] The main control module controls the alarm module and / or the lifting module based on the weight value transmitted by the sub-control module.

[0012] Preferably, the host side further includes a first charging circuit and a first power supply connected thereto, and the first charging circuit or the first power supply supplies power to the host side;

[0013] The drying rod side also includes a second charging circuit and a second power supply connected thereto, and the second charging circuit or the second power supply supplies power to the drying rod side.

[0014] Preferably, the first charging circuit and the second charging circuit are both independent power supply AC-DC conversion circuits, or reuse the power supply conversion circuit of the main control board inside the clothes drying machine.

[0015] Preferably, the first power source and the second power source are both detachable and reusable batteries.

[0016] Preferably, the main control module and the sub-control module both use wireless module and MCU integrated chip;

[0017] The main control module and the sub-control module are wirelessly connected via a built-in antenna.

[0018] Preferably, the wireless module is a Bluetooth module, a WiFi module or an RF antenna.

[0019] Preferably, the lifting module is further provided with a lifting motor;

[0020] The lifting motor is connected to the clothes-drying rod through a steel wire rope, and the clothes-drying rod is lifted and lowered by retracting and extending the steel wire rope.

[0021] Preferably, the alarm module adopts an audible and visual alarm.

[0022] Preferably, the pressure acquisition module includes a bandpass filter circuit and a signal amplification circuit.

[0023] A clothes drying machine equipped with the above-mentioned hanging weight detection system based on air pressure detection.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] When an object is hung on the clothes-drying rod in a stationary state, the clothes-drying rod will generate a downward force, and the steel wire rope of the lifting module in this system will generate an upward force. The two different forces compress the air pressure in the air pressure sensor on the clothes-drying rod side, causing pressure changes and generating pressure-related electrical signals; the pressure acquisition module collects the electrical signal generated by the air pressure sensor through the wire, and converts the electrical signal into a corresponding weight value through the sub-control module, and then wirelessly transmits the weight value to the main control module on the host side; when the main control module receives the transmitted weight value, it compares the weight value with the specified weight value of the clothes-drying rod. If the specified weight value is exceeded, the main control module informs the user through the alarm module to reduce the weight of the clothes hung on the clothes-drying rod, thereby avoiding damage to the clothes-drying machine.

[0026] During the rising process of the clothes-drying rod, if the clothes-drying rod encounters an obstacle, the sub-control module on the clothes-drying rod side will synchronously transmit the weight value corresponding to the electrical signal of the air pressure sensor collected by the pressure acquisition module to the main control module on the host side; after receiving the weight value and making a judgment, the main control module controls the lifting motor to rotate in the opposite direction, from rising to falling, and stops the lifting motor when the next weight value transmitted from the clothes-drying rod side is less than the calibration value, thereby avoiding damage to the clothes-drying rod, extending the service life of the clothes-drying rod and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model's hanging weight detection system based on air pressure detection.

[0028] Figure 2 It is a structural schematic diagram of the utility model clothes drying machine.

[0029] Figure numerals: 1. Host side; 101. Main control module; 102. First charging circuit; 103. First power supply; 104. Lifting module; 1041 Lifting motor; 1042. Steel wire rope; 105. Alarm module; 2. Drying rod side; 201. Sub-control module; 202. Second charging circuit; 203. Second power supply; 204. Air pressure sensor; 205. Pressure acquisition module; 21. Wireless module. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0031] Example 1

[0032] like Figure 1 As shown, this embodiment provides a hanging weight detection system based on air pressure detection, which is applied to a clothes drying machine and includes a main machine side 1 and a clothes drying rod side 2;

[0033] The host side 1 includes a main control module 101 , a lifting module 104 and an alarm module 105 ; the main control module 101 is connected to the lifting module 104 and the alarm module 105 respectively.

[0034] The drying rod side 2 includes a sub-control module 201, an air pressure sensor 204 and a pressure acquisition module 205; the sub-control module 201 is connected to the pressure acquisition module 205; the pressure acquisition module 205 is connected to the air pressure sensor 204 for collecting the electrical signal generated by the air pressure sensor.

[0035] The lifting module 104 is provided with a steel wire rope 1042, and the air pressure sensor 204 is installed at the connection between the clothes-drying rod and the steel wire rope 1042; the main control module 101 is communicated with the sub-control module 201 (dashed line in the figure, but the dashed line does not constitute a limitation on the communication connection method, and it should be understood that it can be a wired and wireless data communication connection); the sub-control module 201 converts the electrical signal of the air pressure sensor 204 collected by the pressure acquisition module 205 into a corresponding weight value, and transmits it to the main control module 101; the main control module 101 controls the alarm module 105 and / or the lifting module 104 based on the weight value transmitted by the sub-control module 201.

[0036] Specifically, when an object is hung on the clothes-drying rod in a stationary state, the clothes-drying rod will generate a downward force, and the steel wire rope will generate an upward force. The two different forces will compress the air pressure in the air pressure sensor 204 on the clothes-drying rod side 2, resulting in a pressure change and then generating an electrical signal related to the pressure; the pressure acquisition module 205 collects the electrical signal generated by the air pressure sensor 204 through the wire, and converts the electrical signal into a corresponding weight value through the sub-control module 201, and then wirelessly transmits the weight value to the main control module 101 on the host side 1; when the main control module 101 receives the transmitted weight value, it compares the weight value with the specified weight value of the clothes-drying rod. If the specified weight value is exceeded, the main control module 101 informs the user through the alarm module 105 to reduce the weight of the clothes hung on the clothes-drying rod, thereby avoiding damage to the clothes-drying machine.

[0037] During the rising process of the clothes-drying rod, if the clothes-drying rod encounters an obstacle, the sub-control module 201 on the clothes-drying rod side 2 will synchronously transmit the weight value corresponding to the electrical signal of the air pressure sensor 204 collected by the pressure collection module 205 to the main control module 101 on the host side 1; after receiving it, the main control module 101 compares it with the initial set threshold. If it exceeds the set ratio of the set threshold, the lifting module 104 is controlled to rotate in the opposite direction, from rising to falling, and stops when the weight value transmitted by the clothes-drying rod side 2 next time is less than the calibration value.

[0038] Furthermore, the host side 1 also includes a connected first charging circuit 102 and a first power supply 103, and the first charging circuit 102 or the first power supply 103 supplies power to the host side 1; the clothes drying rod side 2 also includes a connected second charging circuit 202 and a second power supply 203, and the second charging circuit 202 or the second power supply 203 supplies power to the clothes drying rod side 2; the first power supply 103 and the second power supply 203 are both detachable and reusable batteries; to ensure the continuous operation of the clothes drying machine, the first charging circuit 102 supplies power to the host side 1 when the first power supply 103 has no power or there is no first power supply 103; when the first power supply 103 has no power, it is charged through the first charging circuit 102; the second charging circuit 202 supplies power to the clothes drying rod side 2 when the second power supply 203 has no power or there is no second power supply 203; when the second power supply 203 has no power, it is charged through the second charging circuit 202.

[0039] Furthermore, the first charging circuit 102 and the second charging circuit 202 can be independent power AC-DC conversion circuits; or the power conversion circuit of the main control board inside the clothes drying machine can be reused to convert the voltage into the voltage required by the system.

[0040] Furthermore, the first power source 103 and the second power source 203 are both detachable and reusable batteries, which on the one hand ensures the flexibility and efficiency of system operation, and on the other hand reduces user costs and maintenance costs.

[0041] Furthermore, to reduce external environmental interference, shorten communication time, and improve control response time, the main control module 101 and sub-control module 201 of this application both use an integrated chip with a wireless module and an MCU, and the two are wirelessly connected via a built-in antenna. In this embodiment, the integrated chip uses the Lianshengde W801 chip, which integrates a wireless module and an MCU.

[0042] Furthermore, the wireless module is a Bluetooth module, a WiFi module or an RF antenna.

[0043] Furthermore, the lifting module 104 is also provided with a lifting motor 1041, and the lifting motor 1041 is connected to the clothes-drying rod through a steel wire rope 1042, and the lifting and lowering control of the clothes-drying rod is achieved by retracting and extending the steel wire rope.

[0044] Furthermore, the alarm module 105 uses an audible and visual alarm. When the main control module 101 detects that the weight value transmitted by the sub-control module 201 exceeds the specified weight value of the clothes drying rod, the alarm module is controlled to sound an alarm to prompt the user to reduce the weight of the items hung on the clothes drying rod to avoid damage to the clothes drying machine.

[0045] In this embodiment, the air pressure sensor 204 is an XGZP040 sensor.

[0046] Furthermore, the pressure acquisition module 205 includes a bandpass filter circuit and a signal amplification circuit, which processes the data collected by the air pressure sensor and outputs it to the MCU.

[0047] Example 2

[0048] like Figure 2 As shown, this embodiment provides a clothes drying machine, which is equipped with the hanging weight detection system based on air pressure detection in the above-mentioned embodiment 1, wherein the lifting motor 104 of the main machine side 1 is connected to the clothes drying rod side 2 through a wire rope 1042 to control the lifting and lowering of the clothes drying rod side 2; the pressure generated by the air pressure sensor 204 on the clothes drying rod side 2 is transmitted to the wireless transmission module 21 of the main control module 101 of the main machine side 1 through the wireless module 21 of the sub-control module 201, realizing data transmission and determining the hanging weight of the clothes drying rod through the main control module 101. The above-mentioned hanging weight detection system ensures that the clothes drying machine operates within the specified weight value of the clothes drying rod, avoids damage to the clothes drying machine, and improves the user experience.

[0049] It should also be noted that, in this specification, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or apparatus comprising the element.

[0050] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The hanging weight detection system based on air pressure detection is characterized by: Applied to clothes drying machine, including the main machine side and the drying rod side; The host side includes a main control module, a lifting module and an alarm module; the main control module is connected to the lifting module and the alarm module respectively; The drying rod side includes a sub-control module, an air pressure sensor and a pressure acquisition module; the sub-control module is connected to the pressure acquisition module; the pressure acquisition module is connected to the air pressure sensor; The lifting module is provided with a steel wire rope; the air pressure sensor is installed at the connection between the drying rod and the steel wire rope; The sub-control module converts the electrical signal of the air pressure sensor collected by the pressure collection module into a corresponding weight value and transmits it to the main control module; The main control module controls the alarm module and / or the lifting module based on the weight value transmitted by the sub-control module.

2. The hanging weight detection system based on air pressure detection according to claim 1 is characterized in that: The host side further includes a first charging circuit and a first power supply connected thereto, wherein the first charging circuit or the first power supply supplies power to the host side; The drying rod side also includes a second charging circuit and a second power supply connected thereto, and the second charging circuit or the second power supply supplies power to the drying rod side.

3. The hanging weight detection system based on air pressure detection according to claim 2 is characterized in that: The first charging circuit and the second charging circuit are both independent power AC-DC conversion circuits, or reuse the power conversion circuit of the main control board inside the clothes drying machine.

4. The hanging weight detection system based on air pressure detection according to claim 2 is characterized in that: The first power source and the second power source are both detachable and reusable batteries.

5. The hanging weight detection system based on air pressure detection according to claim 1 is characterized in that: The main control module and sub-control module both use wireless module and MCU integrated chip; The main control module and the sub-control module are wirelessly connected via a built-in antenna.

6. The hanging weight detection system based on air pressure detection according to claim 5 is characterized in that: The wireless module is a Bluetooth module, a WiFi module or an RF antenna.

7. The hanging weight detection system based on air pressure detection according to claim 1 is characterized in that: The lifting module is also provided with a lifting motor; The lifting motor is connected to the clothes-drying rod through a steel wire rope, and the clothes-drying rod is lifted and lowered by retracting and extending the steel wire rope.

8. The hanging weight detection system based on air pressure detection according to claim 1 is characterized in that: The alarm module adopts an audible and visual alarm.

9. The hanging weight detection system based on air pressure detection according to claim 1, characterized in that: The pressure acquisition module includes a bandpass filtering circuit and a signal amplifying circuit.

10. A clothes drying machine, characterized in that: Equipped with the hanging weight detection system based on air pressure detection as described in any one of claims 1-9.

Images