Low-cost ground inspection system of sweeper
By introducing a ground detection power supply access module, a connection terminal module, a constant current amplification module, and a modulation module into the sweeping machine, signal processing is simplified, solving the problems of numerous and costly ground detection circuit components in traditional sweeping machines, and realizing a low-cost and highly reliable sweeping machine ground detection system.
Patent Information
- Application Number
- CN202423042648.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Traditional robotic vacuum cleaners have many components in their floor detection circuits and complex signal processing, resulting in high costs and low reliability.
The signal processing flow is simplified by adopting a ground detection power supply access module, a ground detection connection terminal module, a constant current amplification module, and a modulation module. The infrared PWM signal is amplified by a constant current amplification circuit composed of transistors and fed back to the MCU processor for decoding.
It achieves low-cost design, simplifies circuit structure, improves system reliability, reduces production costs, and ensures circuit stability.
Smart Images
Figure CN223614757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sweeping machines, and in particular to a low-cost floor inspection system for sweeping machines. Background Technology
[0002] Traditional sweeper floor detection circuits typically amplify signals using operational amplifiers before feeding them back to the MCU for processing. This involves numerous components and complex signal processing, resulting in high costs for existing sweeper floor detection systems. Furthermore, the complexity of signal processing also leads to relatively low reliability.
[0003] Therefore, there is an urgent need to provide a low-cost floor inspection system for sweeping machines to overcome the above-mentioned shortcomings. Utility Model Content
[0004] The main purpose of this utility model is to provide a low-cost floor inspection system for sweeping machines, which has the advantages of simple design, fewer components, effective reduction of production costs, and high reliability.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A low-cost floor inspection system for sweeping robots includes:
[0007] The ground inspection power supply access module connects to the power supply signal of the sweeper;
[0008] The ground inspection connection terminal module is powered by the ground inspection power supply access module and receives infrared PWM signals from the sweeper's MCU processor;
[0009] The constant current amplifier module amplifies the infrared PWM signal with a constant current.
[0010] The modulation module modulates the signal transmitted by the constant current amplifier module and feeds it back to the MCU processor for decoding.
[0011] Preferably, the ground inspection power supply access module includes: a resistor R1 connected to the power supply of the sweeper, and a capacitor C1 connected in parallel with the resistor R1. The resistor R1 and the capacitor C1 are connected in parallel to the ground inspection connection terminal module.
[0012] Preferably, the constant current amplification module includes: a transistor Q1 whose collector is connected to the ground detection terminal module, and a transistor Q2 whose collector is connected to the base of transistor Q1; the emitter of transistor Q1 is connected to the base of transistor Q2 via a parallel resistor R3 and a capacitor C3, and grounded via a resistor R4; the emitter of transistor Q2 is grounded, and the collector is connected to the output via a parallel resistor R6 and a resistor R7; the other end of resistor R7 is grounded.
[0013] Preferably, the modulation module includes: a resistor R3 and a capacitor C2 connected in parallel and connected to the signal of the constant current amplifier module, and a resistor R2 connected to the resistor R3 and connected to a 3.3V voltage; the capacitor C2 is grounded, and both the resistor R2 and the resistor R3 are connected to the ground detection terminal module.
[0014] Preferably, the ground inspection connection terminal module has an infrared tube.
[0015] This utility model discloses a low-cost floor inspection system for a sweeping machine. The floor inspection power supply module supplies power to the floor inspection connection terminal module. After the floor inspection connection terminal module is powered on, it receives the infrared PWM signal sent by the MCU processor inside the sweeping machine and transmits the signal to the constant current amplification module. The constant current amplification module amplifies the signal and modulates it before feeding it back to the MCU processor for decoding. It can output to the MCU processor directly after modulation without the need for a transport amplifier, which simplifies the circuit structure and ensures the reliability of the circuit. This makes the system simple in design, with fewer components, effectively reducing production costs and high reliability. Attached Figure Description
[0016] Figure 1 This is a block diagram of the low-cost floor inspection system for the sweeper of this utility model.
[0017] Figure 2 for Figure 1 A circuit schematic diagram.
[0018] Explanation of icon numbers in the instruction manual:
[0019] 1-Ground detection power supply access module, 2-Ground detection connection terminal module, 3-Constant current amplifier module, 4-Modulation module. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on the other component or indirectly on that other component.
[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.
[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] Please see Figure 1 The low-cost floor inspection system for the sweeping machine in this embodiment includes: a floor inspection power supply access module 1, a floor inspection connection terminal module 2, a constant current amplification module 3, and a modulation module 4. The floor inspection power supply access module 1 receives the power supply signal of the sweeping machine. The floor inspection connection terminal module 2 is powered by the floor inspection power supply access module 1 and receives the infrared PWM signal from the MCU processor of the sweeping machine. The constant current amplification module 3 amplifies the infrared PWM signal with a constant current. The modulation module 4 modulates the signal transmitted by the constant current amplification module 3 and feeds it back to the MCU processor for decoding.
[0026] Please combine again Figure 2 The ground inspection power supply access module 1 in this embodiment includes: a resistor R1 connected to the power supply of the sweeper, and a capacitor C1 connected in parallel with the resistor R1. The resistor R1 and the capacitor C1 are connected in parallel to the ground inspection connection terminal module 2. Specifically, the voltage connected to the resistor R1 is 5V.
[0027] The ground inspection connection terminal module 2 has an infrared tube. After being powered on by the ground inspection power supply access module 1, the infrared tube receives the PWM signal sent by the MCU processor inside the sweeper and transmits the signal to the constant current amplifier module 3 through the line.
[0028] The constant current amplification module 3 includes: a transistor Q1 whose collector is connected to the ground connection terminal module 2, and a transistor Q2 whose collector is connected to the base of transistor Q1; the emitter of transistor Q1 is connected to the base of transistor Q2 via a parallel resistor R3 and a capacitor C3, and grounded through a resistor R4; the emitter of transistor Q2 is grounded, and its collector is connected to a parallel resistor R6 and a resistor R7 for output; the other end of resistor R7 is grounded. Using transistor constant current amplification effectively simplifies the circuit structure.
[0029] The modulation module 4 includes: a resistor R3 and a capacitor C2 connected in parallel and connected to the signal from the constant current amplification module, and a resistor R2 connected to the resistor R3 and connected to a 3.3V voltage; the capacitor C2 is grounded, and both the resistor R2 and the resistor R3 are connected to the ground detection terminal module 2. The modulation module 4 receives the signal modulated by the constant current amplification module 3 and feeds back the modulation information to the MCU processor for decoding, thereby realizing the detection function of the sweeper's ground detection system.
[0030] As can be seen from the above description, this utility model utilizes a constant current amplifier circuit composed of transistors to amplify the infrared PWM signal transmitted by the sweeping machine, and then modulates the constant current amplified signal and feeds it back to the MCU processor for decoding. This eliminates the need for a motion amplifier to achieve the amplification function, effectively simplifying the circuit structure and reducing costs. At the same time, the modulation circuit provides stability for the circuit operation, thus giving this product the advantages of simple design, fewer components, effective reduction of production costs, and high reliability.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A low-cost floor inspection system for sweeping machines, characterized in that, include: The ground inspection power supply access module connects to the power supply signal of the sweeper; The ground inspection connection terminal module is powered by the ground inspection power supply access module and receives infrared PWM signals from the sweeper's MCU processor; The constant current amplifier module amplifies the infrared PWM signal with a constant current. The modulation module modulates the signal transmitted by the constant current amplifier module and feeds it back to the MCU processor for decoding.
2. The low-cost floor inspection system for a sweeper as described in claim 1, characterized in that, The ground inspection power supply access module includes: a resistor R1 connected to the power supply of the sweeper, and a capacitor C1 connected in parallel with the resistor R1. The resistor R1 and the capacitor C1 are connected in parallel to the ground inspection connection terminal module.
3. The low-cost floor inspection system for a sweeper as described in claim 1 or 2, characterized in that, The constant current amplification module includes: a transistor Q1 whose collector is connected to the ground detection terminal module, and a transistor Q2 whose collector is connected to the base of transistor Q1; the emitter of transistor Q1 is connected to the base of transistor Q2 via a parallel resistor R3 and a capacitor C3, and grounded via a resistor R4; the emitter of transistor Q2 is grounded, and the collector is connected to the output via a parallel resistor R6 and a resistor R7; the other end of resistor R7 is grounded.
4. The low-cost floor inspection system for a sweeper as described in claim 1, characterized in that, The modulation module includes: a resistor R3 and a capacitor C2 connected in parallel and connected to the signal of the constant current amplifier module, and a resistor R2 connected to the resistor R3 and connected to a 3.3V voltage; the capacitor C2 is grounded, and both the resistor R2 and the resistor R3 are connected to the ground detection terminal module.
5. The low-cost floor inspection system for a sweeper as described in claim 1, characterized in that, The ground inspection connection terminal module has an infrared tube.