A multifunction radar sensing controller

Abstract

The utility model discloses a kind of multifunctional radar induction controller, it is related to induction control technical field, solve the problem that existing microwave radar induction controller is greatly influenced by environment, single function and power supply stability is insufficient.The controller includes power processing module, single-chip microcomputer control module, radar induction module, gravity induction interface, further include external power signal control circuit and double-color pilot lamp.The utility model is adjusted by radar DB value to promote environmental adaptability, integrated multi-module realizes functional diversification, voltage stabilizing circuit guarantees power supply stability, can realize "radar detection+gravity induction" linkage control, applicable to smart home, security monitoring and other multiple scenes, strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of sensing control technology, specifically a multi-functional radar sensing controller. Background Technology

[0002] In the field of sensor control, microwave radar sensor controllers are widely used in lighting control, human body detection alarms, and other scenarios because they can detect moving objects in the surrounding environment without contact. However, current microwave radar sensor controllers typically rely on a single microwave sensing principle to achieve their functions, which has the following shortcomings: Weak environmental adaptability: The existing controller does not have a sensitivity adjustment mechanism, making it susceptible to environmental factors (such as temperature fluctuations, obstructions, and electromagnetic interference), which leads to a decrease in detection accuracy and causes false triggering or missed triggering problems. It cannot meet the usage requirements of complex scenarios (such as workshops and outdoor corridors). Limited functionality: It only has the function of moving object detection and lacks extended functions such as voltage regulation and gravity sensing, which cannot meet the needs of multi-condition linkage control (such as intelligent shelves needing to detect "person approach" and "goods gravity change" at the same time). Poor power supply stability: The lack of integrated dedicated voltage regulator and step-down modules means that input voltage fluctuations (such as unstable mains voltage) can easily cause abnormal controller operation and shorten the equipment's lifespan.

[0003] Therefore, there is an urgent need for a radar sensing controller that can improve environmental adaptability, enrich functions, and ensure stable power supply to overcome the shortcomings of existing technologies. Utility Model Content

[0004] This invention aims to overcome the technical shortcomings of existing microwave radar sensing controllers, such as poor environmental adaptability, weak power compatibility, and limited functionality, and provides a multifunctional radar sensing controller to achieve the following objectives: Improved power adaptability, supporting a wide range of input voltages to adapt to different external power supply scenarios; Reduce environmental interference with radar sensing and improve sensing accuracy and stability; It integrates expansion interfaces to increase functional diversity and meet the control needs of complex scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-functional radar sensing controller, comprising: The power processing module is used to detect external power supply, step down voltage, and stabilize power supply. The control module, electrically connected to the power processing module, is used to receive external signals and output control commands; The radar sensing module is electrically connected to both the control module and the power processing module, and is used to generate, transmit, receive radar signals and adjust the radar signal sensitivity. It also includes a gravity sensing interface, which is electrically connected to the control module and is used to connect an external gravity sensor to collect gravity sensing signals. The power processing module includes an external control input terminal, a DC-DC step-down module, and a 5.0V voltage regulator circuit. The external control input terminal is used to detect the external power input, the DC-DC step-down module is used to reduce the input voltage, and the 5.0V voltage regulator circuit has an input voltage range of 7-15V and outputs a stable 5.0V voltage. The radar sensing module includes a radar signal generation circuit, a radar signal dB value adjustment circuit, a radar signal transmission and reception circuit, and a radar gain power supply circuit. The radar gain power supply circuit is electrically connected to the 5.0V voltage regulator circuit.

[0006] As a further embodiment of this utility model: the power processing module further includes a power level adjustment circuit for adjusting the power level of the acquisition input, the power level adjustment circuit being electrically connected to the external control input terminal and the DC-DC step-down module, and the power level adjustment circuit including a 300K resistor.

[0007] As a further improvement of this utility model, it also includes an external power signal control circuit and a signal indicator; the external power signal control circuit is electrically connected to the output terminal of the control module and is used to output a power control signal to the outside; the signal indicator is a dual-color light, connected in series with the external power signal control circuit, and is used to indicate the output status of the power control signal; the external power signal control circuit includes an AO3401 transistor and an MMBT3904LT1G transistor.

[0008] As a further improvement of this utility model: the control module is a single-chip microcomputer control system; the radar signal generation circuit includes an operational amplifier, which uses an LM258DR chip; the 5.0V voltage regulator circuit includes a voltage regulator chip, which uses an ME6203A50PG chip.

[0009] As a further embodiment of this utility model: the DC-DC step-down module includes an inductor, a first electrolytic capacitor, and a second electrolytic capacitor; the inductor is 47uH, the first electrolytic capacitor is 100uF / 35V, and the second electrolytic capacitor is 470uF / 10V; the radar signal dB value adjustment circuit includes a 1M potentiometer.

[0010] Compared with the prior art, the beneficial effects of this utility model are: Significantly improved environmental adaptability: The radar sensing module's DB value adjustment function can adjust the sensitivity according to the degree of environmental interference, avoiding false triggering / missed triggering, and adapting to different scenarios such as workshops, outdoors, and homes; Multifunctional: It integrates power regulation, radar detection, and gravity sensing functions, and can realize multi-condition linkage control (such as triggering an alarm when "the radar detects personnel and the gravity sensor detects missing goods") to meet the needs of complex scenarios. High power supply stability: The DC-DC step-down module, in conjunction with the 5.0V voltage regulator circuit, can adapt to a wide input voltage range of 7-15V, ensuring stable operation of the system under voltage fluctuations. Highly practical: The external power signal control circuit is combined with indicator lights, which facilitates real-time monitoring of the control status. Furthermore, each module uses standardized components, resulting in low cost and easy maintenance. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the circuit structure of a multi-functional radar sensing controller. Detailed Implementation

[0013] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Please see Figure 1 In this embodiment of the utility model, the module circuit connection relationship of a multifunctional radar sensing controller is as follows: Power processing module: The external power supply is connected through the "external control input terminal". The voltage is first reduced by the DC-DC step-down module (inductor L1=47uH, capacitor C1=100uF / 35V filter, capacitor C4=470uF / 10V freewheeling) and then input to the ME6203A50PG voltage regulator chip (U3). The output 5.0V voltage supplies the control module, radar sensing module and gravity sensing interface respectively. The power level adjustment circuit (resistor R36=300K) is connected in parallel between the external control input terminal and the DC-DC step-down module. The input voltage acquisition level is changed by adjusting the resistance value.

[0017] Control module: The core uses an STM32F103 microcontroller. I / O port 1 is connected to the external control input terminal (to detect the power input status), I / O port 2 is connected to the gravity sensor interface (to receive gravity signals), I / O ports 3-5 are connected to the radar sensor module (to receive detection signals and output DB value adjustment commands), and I / O ports 6-8 are connected to the external power signal control circuit (to output control signals).

[0018] Radar sensing module: The signal generation circuit composed of LM258DR operational amplifier (U2A) outputs a 10GHz microwave signal. After the dB value is adjusted by 1M potentiometer (R17), it is transmitted by the microwave transmitting tube. After the receiving tube receives the reflected signal, it is filtered by capacitors C23=100pF and C8=10uF and then transmitted to the microcontroller. The radar gain power supply circuit provides a stable current to the transmitting / receiving tubes by dividing the 5.0V power supply through resistor R11=100Ω.

[0019] Auxiliary module: In the external power signal control circuit, AO3401 transistor (Q2) controls the main power output, and MMBT3904LT1G transistor (Q5) controls the indicator light circuit; when the microcontroller outputs a high-level command, Q2 is turned on, the external device is powered on, and Q5 is turned on at the same time, and the red indicator light is lit; when there is no command, Q2 is turned off, and the blue indicator light is lit.

[0020] (2) Work process After the external power supply is connected, the external control input terminal detects the power signal and transmits the signal to the microcontroller; The microcontroller controls the DC-DC step-down module and voltage regulator circuit to start up, and outputs 5.0V voltage to power each module; Radar sensing module initialization: The LM258DR generates a microwave signal, which is then transmitted after the DB value is adjusted, and the receiving tube receives the reflected signal in real time; If the radar detects a moving object, the reflected signal changes, and the microcontroller receives the signal; at the same time, the gravity sensing interface collects the signal from the external gravity sensor and transmits it to the microcontroller. The microcontroller determines whether to output a control command based on preset logic (such as "moving object exists + gravity value is below the threshold"). If the conditions are met, the control circuit of the external power supply signal is turned on, the external device (such as alarm light, motor) is started, and the red indicator light is lit. If the conditions are not met, the circuit is turned off, and the blue indicator light is lit. During operation, the power supply level adjustment circuit can manually adjust the level according to fluctuations in the external power supply voltage to ensure stable input voltage.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-functional radar sensing controller, characterized in that, include: The power processing module is used to detect external power supply, step down voltage, and stabilize power supply. The control module, electrically connected to the power processing module, is used to receive external signals and output control commands; The radar sensing module is electrically connected to both the control module and the power processing module, and is used to generate, transmit, receive radar signals and adjust the radar signal sensitivity. It also includes a gravity sensing interface, which is electrically connected to the control module and is used to connect an external gravity sensor to collect gravity sensing signals. The power processing module includes an external control input terminal, a DC-DC step-down module, and a 5.0V voltage regulator circuit. The external control input terminal is used to detect the external power input, the DC-DC step-down module is used to reduce the input voltage, and the 5.0V voltage regulator circuit has an input voltage range of 7-15V and outputs a stable 5.0V voltage. The radar sensing module includes a radar signal generation circuit, a radar signal dB value adjustment circuit, a radar signal transmission and reception circuit, and a radar gain power supply circuit. The radar gain power supply circuit is electrically connected to the 5.0V voltage regulator circuit.

2. The multi-functional radar sensing controller according to claim 1, characterized in that, The power processing module also includes a power level adjustment circuit for adjusting the power level of the acquisition input. The power level adjustment circuit is electrically connected to the external control input terminal and the DC-DC step-down module, and the power level adjustment circuit includes a 300K resistor.

3. The multi-functional radar sensing controller according to claim 1, characterized in that, It also includes an external power signal control circuit and a signal indicator; the external power signal control circuit is electrically connected to the output terminal of the control module and is used to output a power control signal to the outside; the signal indicator is a dual-color light, connected in series with the external power signal control circuit, and is used to indicate the output status of the power control signal; the external power signal control circuit includes an AO3401 transistor and an MMBT3904LT1G transistor.

4. The multifunctional radar sensing controller according to claim 3, characterized in that, The control module is a single-chip microcomputer control system; the radar signal generation circuit includes an operational amplifier, which uses an LM258DR chip; the 5.0V voltage regulator circuit includes a voltage regulator chip, which uses an ME6203A50PG chip.

5. The multi-functional radar sensing controller according to claim 1, characterized in that, The DC-DC step-down module includes an inductor, a first electrolytic capacitor, and a second electrolytic capacitor; the inductor is 47uH, the first electrolytic capacitor is 100uF / 35V, and the second electrolytic capacitor is 470uF / 10V. The radar signal DB value adjustment circuit includes a 1M potentiometer.

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