Temperature sensor integrated with dual-antenna wireless WIFI module

Abstract

The utility model relates to sensor technical field, concretely relates to a temperature sensor of integrated double antenna wireless WIFI module, including shell, and temperature sensing module, data processing module with temperature sensing module electric connection, integrated double antenna wireless WIFI module with data processing module electric connection, infrared receiving and emitting module including infrared receiving sensor and infrared LED, infrared receiving and emitting module with data processing module electric connection, illumination sensor with data processing module electric connection, USB3 the communication interface with data processing module and / or wireless WIFI module is connected for with external device communication, FCC wire, with USB3 the communication interface and internal circuit connection for leading out signal and power, power module provides work power supply for each module, solves the problem that traditional sensor signal is poor, few, and transmits slowly.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically to a temperature sensor with an integrated dual-antenna wireless WIFI module. Background Technology

[0002] Temperature sensors are widely used in industrial production, smart homes, healthcare, and other fields. Traditional wireless temperature sensors have many limitations in data transmission: the single antenna design results in limited signal coverage and is prone to dead zones; poor anti-interference ability in complex electromagnetic environments leads to unstable data transmission; and limited functionality cannot meet the growing demand for multi-parameter environmental monitoring and intelligent control.

[0003] While existing sensors integrate Wi-Fi modules, their antenna performance and system integration are often limited, making it difficult to achieve reliable, high-speed wireless data transmission and multi-functional expansion while ensuring high-precision temperature measurement. Therefore, there is an urgent need for a temperature sensor solution with optimized hardware architecture to comprehensively improve performance. Utility Model Content

[0004] The purpose of this invention is to provide a temperature sensor with an integrated dual-antenna wireless WIFI module, which solves the problems of poor signal, limited functionality, and slow transmission of traditional sensors.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A temperature sensor integrating a dual-antenna wireless WIFI module includes a housing and integrated within the housing: a temperature sensing module for real-time measurement of ambient temperature; a data processing module electrically connected to the temperature sensing module for receiving and processing temperature data; a dual-antenna wireless WIFI module electrically connected to the data processing module; an infrared receiving and transmitting module including an infrared receiving sensor and an infrared LED, the infrared receiving and transmitting module being electrically connected to the data processing module; an illuminance sensor electrically connected to the data processing module for real-time measurement of ambient light intensity and conversion of the light intensity data into a digital signal for transmission to the data processing module; a USB 3.0 communication interface connected to the data processing module and / or the wireless WIFI module for communication with external devices; an FCC cable connected to the USB 3.0 communication interface and internal circuitry for signal and power output; and a power supply module providing operating power to each module.

[0006] A further technical solution is that the wireless WIFI module includes a circuit board, a main chip mounted on the circuit board, two WIFI antennas orthogonally distributed in space, and a BT antenna; the main chip adopts the MT7921 main chip and supports the IEEE 802.11ax (Wi-Fi 6E) standard; the temperature sensing module adopts a high-precision digital temperature sensor JIRS40 and is connected to the data processing module through a single-wire communication interface; the data processing module adopts a high-performance microcontroller, which is used to filter and calibrate the temperature data transmitted by the temperature sensing module and the light intensity data transmitted by the illuminance sensor, and also to decode the electrical signals transmitted by the infrared receiving sensor to identify infrared control commands.

[0007] A further technical solution is that the circuit board of the wireless WIFI module also integrates an RF front-end module, a power amplifier, a low-noise amplifier, and a filter. These circuits, together with the main chip, constitute a complete RF communication circuit. The RF front-end module is used to amplify and filter the signal, the power amplifier is used to increase the power of the transmitted signal, the low-noise amplifier is used to reduce the noise of the received signal, and the filter is used to suppress interference signals. The WIFI antenna adopts a PCB differential trace design and covers the 2.4GHz, 5GHz, and 6GHz three-band frequency range. The WIFI antenna is also equipped with an impedance matching network, which is used to optimize the signal transmission performance of the WIFI antenna. The BT antenna supports the Bluetooth 5.2 standard and is used for the configuration and debugging of the temperature sensor, as well as for short-range data interaction with Bluetooth-enabled mobile terminals.

[0008] A further technical solution is that the infrared receiving sensor adopts a ROM-SA138MV-R infrared receiver head, which is used to receive infrared signals with a frequency of 38kHz; the infrared LED adopts a BIR-HMC33M-2 high-power infrared light-emitting diode, which is used to emit infrared signals with specific codes; the illuminance sensor adopts a VEML33293A3OZ digital illuminance sensor, which is connected to the data processing module through an I2C interface, and the illuminance sensor is used to measure the intensity of red light, blue light, green light, infrared light, and overall illumination in the environment.

[0009] A further technical solution is that the power module supports both battery power and external power supply, and the power module has a built-in DC-DC voltage conversion circuit and a power monitoring circuit.

[0010] A further technical solution is that the outer shell is made of insulating, weather-resistant engineering plastic, with a compact structure to accommodate all functional modules.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a temperature sensor with an integrated dual-antenna wireless WIFI module. The orthogonal distribution of the two WIFI antennas, combined with the anti-interference performance of the main chip, can solve the "signal dead zone" problem (such as corners of large warehouses). The Bluetooth antenna can also extend the short-range interaction range and facilitate equipment debugging. The diversity reception technology of the dual antennas, the dual-antenna collaborative data transmission, and the RF auxiliary circuit can resist interference from industrial electromagnetic fields and medical equipment, reducing data packet loss and interruption. It integrates temperature, light, and infrared transceiver functions, enabling coordinated environmental monitoring and equipment control without the need for additional equipment deployment, and is suitable for various scenarios such as smart homes, industry, and medical care. The USB 3.0 interface meets high-speed data requirements, the FCC cable adapts to complex installation environments, and the Bluetooth configuration eliminates the need for wired connections, reducing installation and maintenance difficulty. It adopts a high-precision sensor, combined with the calibration algorithm of the data processing module, to ensure accurate measurement data. The weather-resistant shell and power monitoring circuit extend the service life of the device. Attached Figure Description

[0012] Figure 1 A diagram showing the overall structure and module connection of a temperature sensor with an integrated dual-antenna wireless WIFI module, provided as a real-time example of this utility model. Figure 2 This is a structural diagram of the wireless WIFI module in an embodiment of this utility model; Figure 3 This is a circuit diagram of the wireless WIFI module in an embodiment of this utility model.

[0013] Figure 4 This is a schematic diagram of the antenna layout in an embodiment of this utility model.

[0014] Icons: Temperature sensing module 1, Data processing module 2, Illumination sensor 3, Infrared receiver sensor 4, USB 3.0 communication interface 5, FCC cable 6, Power supply module 7, DC-DC voltage conversion circuit 71, Main chip 8, RF front-end module 9, WIFI antenna 10, BT antenna 11, Infrared LED 12. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0016] This utility model embodiment provides a temperature sensor with an integrated dual-antenna wireless WIFI module, such as... Figure 1As shown, the temperature sensor includes a temperature sensing module 1, a data processing module 2, a wireless WIFI module with integrated dual antennas, an infrared receiving and transmitting module, an illuminance sensor 3, a USB 3.0 communication interface 5, an FCC cable 6, a power module 7, and a housing. All components are integrated within the housing. Specifically, the temperature sensing module 1 uses a high-precision digital temperature sensor JIRS40 (only 4×3×1.37mm in size, saving installation space), connected to the data processing module 2 via a single-wire interface. The temperature sensing module 1 operates in a non-contact temperature measurement mode, avoiding the influence of its own onboard temperature on accuracy. The measured temperature data is directly converted into a digital signal by a 12-bit ADC (analog-to-digital converter) and transmitted to the data processing module 2 in real time. The data processing module 2 uses a high-performance microcontroller as the "core control center" of the sensor. Its functions include filtering (removing noise interference) and calibrating (correcting measurement errors) the received temperature and illuminance data, storing the processed data, and decoding the electrical signals transmitted by the infrared receiving sensor 4 to identify user control commands (such as adjusting the temperature measurement frequency). Figure 2 , Figure 3 and Figure 4 As shown, the integrated dual-antenna wireless WIFI module is the core of wireless data transmission. The integrated dual-antenna wireless WIFI module includes a circuit board and a main chip 8 mounted on the circuit board. The main chip 8 can be a MediaTek MT7921 main chip (supporting the IEEE 802.11ax, i.e., Wi-Fi 6E standard, and supporting OFDMA and MU-MIMO technologies). This wireless WIFI module also includes two WIFI antennas 10, one BT (Bluetooth) antenna 11, and auxiliary circuitry (RF front-end module 9, power amplifier, low-noise amplifier, and filter). The WIFI antenna 10 adopts a tri-band design of 2.4GHz / 5GHz / 6GHz, with the two antennas spatially orthogonal (e.g., 90°), optimized for performance through PCB differential traces and impedance matching networks. The 2.4GHz band emphasizes "wide coverage" (suitable for large-area scenarios such as warehouses), while the 5GHz / 6GHz band emphasizes "high speed" (suitable for real-time monitoring scenarios such as medical applications). The BT... Antenna 11 supports the Bluetooth 5.2 standard for short-range operation (such as configuring a WIFI network, debugging equipment, and transmitting small amounts of data via a mobile APP); the RF front-end module 9 in the auxiliary circuit is responsible for signal amplification and filtering, the power amplifier increases the strength of the transmitted signal, the low-noise amplifier reduces the noise of the received signal, and the filter suppresses external interference (such as electromagnetic signals from industrial equipment).

[0017] Furthermore, the infrared receiving and transmitting module includes an infrared receiving sensor 4 and an infrared LED 12. The infrared receiving sensor 4 uses a ROM-SA138MV-R infrared receiver head, capable of receiving infrared signals at a specific frequency of 38kHz (such as infrared remote control commands), converting them into electrical signals, and transmitting them to the data processing module 2. The infrared LED 12 uses a BIR-HMC33M-2 high-power infrared light-emitting diode, capable of emitting specifically coded infrared signals according to the commands of the data processing module 2, enabling control of external devices (such as adjusting air conditioners and smart lighting). The illuminance sensor 3 uses a high-precision digital illuminance sensor 3VEML33293A3OZ, connected via I2C. The interface connects to the data processing module 2, and its function is to measure the intensity of red, blue, green, and infrared light in the environment, as well as the overall illumination intensity, and transmit the data to the data processing module 2 to provide a basis for intelligent control (such as automatically brightening lights when the light is dim); the USB 3.0 communication interface 5 connects to the data processing module 2, supports high-speed data transmission of up to 5Gbps, and is suitable for scenarios with high real-time requirements (such as real-time uploading of industrial equipment temperature to a monitoring system); the FCC flat cable 6 (flexible flat cable) connects to the data processing module 2 and is used for the mechanical connection between the temperature sensor and external control modules (such as smart home control centers, industrial control modules). The fixed electrical connection has advantages such as good flexibility, small footprint, and stable signal transmission; the power module 7 supports both battery power and external power supply, and has a built-in DC-DC voltage conversion circuit 71 (such as model DIO6012CST5) to convert the external power supply voltage into the working voltage adapted to each module (such as 3.3V, 5V). At the same time, the power module 7 is equipped with a power monitoring circuit to monitor the power status in real time (such as reminding to replace the battery when the battery is low); the shell of the temperature sensor is made of insulating and weather-resistant materials, and all internal modules are integrated and packaged to adapt to different working environments (such as high temperature in industrial workshops and humid home environments).

[0018] In one embodiment, the temperature sensor provided by this utility model is applied to the comprehensive monitoring and control of a smart home environment. The device is deployed by installing the sensor on the walls or ceilings of each room (living room, bedroom, kitchen), connecting it to the smart home control center via an FCC cable, and using a USB 3.0 interface for high-speed data transmission. The sensor connects to the home wireless router via a wireless WIFI module. The user pairs the sensor with a mobile app via Bluetooth to complete the initial configuration (setting the WIFI name and password, temperature calibration parameters, and infrared control device type). Its operation is as follows: the temperature sensing module collects the temperature of each room in real time (e.g., 25°C in the bedroom, 25°C in the kitchen, etc.). The illuminance sensor collects light intensity (e.g., 200 lux in the living room), and the data is filtered and calibrated by the processing module before being transmitted to the control center via WIFI. The control center automatically activates devices based on the data: for example, turning on the air conditioner when the bedroom temperature is above 26℃, and brightening the lights when the living room light intensity is below 100 lux. Users can send commands to the sensor via infrared remote control (e.g., turn off the air conditioner), which are decoded and transmitted to the control center for execution. Users can also view real-time data or adjust parameters via a mobile app (connected via Bluetooth). Dual WIFI antennas ensure signal coverage in all rooms without data interruption, and Bluetooth configuration simplifies installation, enhancing the convenience and comfort of smart homes.

[0019] In another embodiment, the temperature sensor provided by this utility model is used for monitoring the temperature and environmental parameters of industrial equipment. The device is deployed on the surface of the heat-generating components of large mechanical equipment (such as motors and frequency converters) in an industrial workshop, and the sensor is attached with high-temperature resistant adhesive. The sensor is connected to an industrial control module via an FCC cable, and high-speed temperature data is uploaded via a USB 3.0 interface. The wireless WIFI module is connected to an industrial-grade wireless router in the workshop and interfaces with the factory monitoring system. Its working process is as follows: the temperature sensing module collects the equipment temperature in real time (e.g., motor temperature 45°C), and the illuminance sensor collects the workshop illumination (e.g., workshop illumination 300 lux). After the data is processed by the processing module, it is transmitted to the monitoring system via WIFI. The monitoring system sets a threshold (e.g., upper limit of motor temperature 60°C). If the temperature exceeds the limit, an alarm signal is immediately issued (e.g., audible and visual alarm) to remind the staff to maintain the equipment. When the electromagnetic interference in the workshop is strong, the dual WIFI antennas automatically switch to a less interfered frequency band (e.g., from 2.4GHz to 5GHz), and work with the power amplifier to ensure signal stability. This solves the problem of poor signal caused by electromagnetic interference in the industrial environment and realizes synchronous monitoring of equipment temperature and ambient light.

[0020] In another embodiment, the temperature sensor provided by this utility model is applied to the monitoring of vital signs of medical patients. The device deployment is as follows: the sensor is worn by hospitalized patients (fixed under the armpit or wrist with medical tape). The sensor is connected to the hospital's internal wireless network via a wireless WIFI module and interfaces with the hospital information management system. At the same time, it is connected to the bedside monitoring device via a USB 3.0 interface to achieve dual data backup. Its working process is as follows: the temperature sensing module collects the patient's body temperature in real time (e.g., 36.8℃). After the data is calibrated by the processing module, it is synchronously transmitted to the information management system and the bedside monitoring device. If the patient's body temperature is abnormal (e.g., higher than 38.5℃), the system automatically sends an alarm message to the medical staff's terminal. The illuminance sensor collects the ward light (e.g., ward light 150 lux). If the light is insufficient, the ward lights are automatically brightened. When doctors make rounds, they can quickly view the patient's historical body temperature data by connecting the sensor to their mobile phones via Bluetooth. This can avoid signal problems in the complex environment of the hospital (interference from multiple medical devices), and the multi-functional integration reduces the number of devices in the ward, improving the efficiency of medical services and patient comfort.

[0021] In another embodiment, the temperature sensor provided by this utility model is applied to smart TV control. The device deployment is as follows: the sensor is installed below the smart TV, and the sensor's button switch is reused as the TV power button; it is connected to the TV control module via an FCC cable and to the home network via a WIFI module; the user pairs the sensor with a mobile APP via Bluetooth to complete the initial configuration; its working process is as follows: the temperature sensing module monitors the temperature change in front of the TV in real time. If it detects "human body temperature (e.g., 36.5℃) approaching", it determines that the user is approaching and automatically triggers the TV to turn on; the illuminance sensor collects the ambient light (e.g., 50 lux at night) and automatically adjusts the TV screen brightness (reduces brightness to protect the eyes); the user sends a command (e.g., "change channel") to the sensor via an infrared remote control, and the sensor decodes it and transmits it to the TV control module for execution; to realize the intelligent interaction of "human intervention to turn on" the TV, and dual antennas ensure stable WIFI and Bluetooth signals.

[0022] The temperature sensor with an integrated dual-antenna wireless WIFI module provided in this embodiment of the invention, through the orthogonal distribution of the dual WIFI antennas and automatic switching of the three frequency bands, combined with the anti-interference performance of the MT7921 chip, can solve the problem of signal dead zones (such as corners of large warehouses). The Bluetooth antenna can also expand the short-range interaction range and facilitate equipment debugging. The diversity reception technology (selecting the antenna with the best signal), MIMO technology (dual antennas cooperating to transmit data), and radio frequency auxiliary circuit of the dual antennas can resist interference from industrial electromagnetic fields, medical equipment, etc., and reduce data packet loss and interruption. It integrates temperature, light, and infrared transceiver functions, and can realize "environmental monitoring and equipment control" without the need for additional equipment deployment. It is suitable for multiple scenarios such as smart home (comprehensive temperature control and lighting adjustment), industry (equipment temperature measurement and ambient light monitoring), and medical (body temperature monitoring and ward lighting adjustment). The USB 3.0 interface meets the high-speed data requirements and is FCC compliant. The ribbon cable is adaptable to complex installation environments (such as narrow surfaces of the equipment), and the Bluetooth configuration eliminates the need for wired connections, reducing the difficulty of installation and maintenance; it adopts high-precision sensors such as JIRS40 (non-contact temperature measurement) and VEML33293A3OZ (multispectral light monitoring), and together with the calibration algorithm of the data processing module, it ensures accurate measurement data; the weather-resistant housing and power monitoring circuit extend the service life of the equipment.

[0023] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the drawings and claims disclosed herein. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A temperature sensor integrating a dual-antenna wireless WIFI module, characterized in that, Includes the outer casing, and integrated within the outer casing: Temperature sensing module (1) is used to measure ambient temperature in real time; The data processing module (2) is electrically connected to the temperature sensing module (1) and is used to receive and process temperature data; A wireless WIFI module with integrated dual antennas is electrically connected to the data processing module (2); An infrared receiving and transmitting module includes an infrared receiving sensor (4) and an infrared LED (12), and the infrared receiving and transmitting module is electrically connected to the data processing module (2); The illuminance sensor (3) is electrically connected to the data processing module (2) and is used to measure the ambient light intensity in real time and convert the light intensity data into a digital signal for transmission to the data processing module (2). The USB 3.0 communication interface (5) is connected to the data processing module (2) and / or the wireless WIFI module for communicating with external devices; The FCC cable (6) is connected to the USB 3.0 communication interface (5) and internal circuitry to bring out signals and power. The power supply module (7) provides power to each module.

2. The temperature sensor with an integrated dual-antenna wireless WIFI module according to claim 1, characterized in that, The wireless WIFI module includes a circuit board, a main chip (8) disposed on the circuit board, two WIFI antennas (10) orthogonally distributed in space, and a BT antenna (11). The main chip (8) adopts the MT7921 main chip and supports the IEEE 802.11ax standard; The temperature sensing module (1) adopts a high-precision digital temperature sensor JIRS40 and is connected to the data processing module (2) through a single-wire communication interface. The data processing module (2) uses a high-performance microcontroller. The microcontroller is used to filter and calibrate the temperature data transmitted by the temperature sensing module (1) and the light intensity data transmitted by the illuminance sensor (3). It is also used to decode the electrical signal transmitted by the infrared receiving sensor (4) to identify infrared control commands.

3. The temperature sensor with an integrated dual-antenna wireless WIFI module according to claim 2, characterized in that, The circuit board of the wireless WIFI module also integrates an RF front-end module (9), a power amplifier, a low-noise amplifier and a filter. These circuits together with the main chip (8) constitute a complete RF communication circuit. The radio frequency front-end module (9) is used to amplify and filter the signal, the power amplifier is used to increase the power of the transmitted signal, the low noise amplifier is used to reduce the noise of the received signal, and the filter is used to suppress interference signals. The WIFI antenna (10) adopts a PCB differential trace design and covers three frequency bands: 2.4GHz, 5GHz and 6GHz. The WIFI antenna (10) is also equipped with an impedance matching network, which is used to optimize the signal transmission performance of the WIFI antenna (10). The BT antenna (11) supports the Bluetooth 5.2 standard and is used for the configuration and debugging of the temperature sensor, as well as for short-range data interaction with a mobile terminal that supports Bluetooth.

4. The temperature sensor with an integrated dual-antenna wireless WIFI module according to claim 1, characterized in that, The infrared receiving sensor (4) uses an infrared receiver head of model ROM-SA138MV-R, which is used to receive infrared signals with a frequency of 38kHz. The infrared LED (12) is a high-power infrared light-emitting diode of model BIR-HMC33M-2, and the infrared LED (12) is used to emit infrared signals with specific codes; The illuminance sensor (3) is a digital illuminance sensor with model number VEML33293A3OZ, and is connected to the data processing module (2) through an I2C interface. The illuminance sensor (3) is used to measure the intensity of red light, blue light, green light, infrared light and overall illuminance in the environment.

5. The temperature sensor with an integrated dual-antenna wireless WIFI module according to claim 1, characterized in that, The power module (7) supports both battery power supply and external power supply. The power module (7) has a built-in DC-DC voltage conversion circuit (71) and a power monitoring circuit.

6. The temperature sensor with an integrated dual-antenna wireless WIFI module according to claim 1, characterized in that, The housing is made of insulating, weather-resistant engineering plastic and has a compact structure to accommodate all functional modules.

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