Multiprotocol sensor unit for security and remote assistance

Abstract

A multiprotocol sensor unit for the security and telecare field with bidirectional communication, remote updating, and terminal computing, characterized by integrating on its internal board a control microcontroller capable of transmitting and receiving data in the 869 MHz and 2.4 GHz bands, a wireless communication system using PCB antennas optimized for signal transmission and reception in the aforementioned 869 MHz and 2.4 GHz bands, a power source consisting of two AAA batteries, and the following sensors: A. Long-range PIR (passive infrared) sensor for presence detection (1). B. Low-power accelerometer (2). C. Environmental sensor that measures air quality (3), including relative concentrations of volatile organic compounds, CO2 level , temperature, relative humidity, and atmospheric pressure. D. Ambient light sensor (4).

Description

Multiprotocol sensor unit for security and remote assistance OBJECT OF THE INVENTION The following invention, as expressed in the statement of this descriptive memorandum, refers to a multisensory module designed for security and telecare applications in residential environments, which provides a comprehensive solution in a single compact device, equipped with sensors for presence, motion, air quality, temperature, pressure, humidity and ambient light, operating in 869 MHz and 2.4 GHz bands, and equipped with remote configuration and updating capabilities. The field of application of the present invention relates to the field of sensors applied to security, home automation and telecare, especially in residential environments with elderly people or people with reduced abilities, combining environmental, presence, motion sensors and low-power wireless connectivity. BACKGROUND OF THE INVENTION Given the current state of technology, conventional security and remote assistance systems typically rely on multiple devices to perform various functions, such as detecting presence, vibrations, or air quality. Furthermore, many of these systems do not allow for remote reconfiguration or firmware updates without physical intervention. In other words, they do not permit remote modification of their firmware, the software that controls the device's electronics and acts as a bridge between the software and hardware. On the other hand, maintaining energy autonomy remains a challenge in multi-sensor wireless systems, especially when operating in environments without access to a permanent power grid. More specifically, multisensor devices for home automation and security are already available on the market, such as "6-in-1" sensors based on Z-Wave technology (like the Aeotec MultiSensor 6 model) that integrate motion, temperature, humidity, light, UV, and vibration sensors. However, these devices have the following limitations: They operate on a single frequency band, making direct configuration difficult without a central controller. They lack air quality sensors to measure volatile organic compounds (VOCs) or CO levels, a key factor in telecare applications. They do not have advanced processing capabilities in the device itself. Turning to another family of systems, such as those used in professional security (like the Ajax Systems model), these do offer robust long-range communication and have the option of over-the-air firmware (FOTA) updates. However, they have the drawback of relying on an ecosystem of multiple specialized devices, such as motion sensors, vibration sensors, etc., which increases the cost and complexity of their installation. However, the "multiprotocol sensor unit for the field of security and telecare with bidirectional communication, remote updating and terminal computing" solves the above deficiencies and provides the following advantages over the state of the art in the field: A multisensor device designed as a single, compact, and energy-efficient module for simple installation, autonomous operation, and minimal maintenance. Its dual communication capability (869 MHz and 2.4 GHz) provides the robustness and long range of sub-1 GHz bands for critical alerts, while also allowing for easy configuration and commissioning via Bluetooth. Real-time detection of presence, vibrations, air quality, gases, temperature, humidity, atmospheric pressure and light. Configurable alert system via Bluetooth-type personal area wireless networks. Extended autonomy powered by two standard AAA or finger batteries. Remotely reconfigurable and updatable over the air (FOTA). This technology allows manufacturers to improve device performance, correct errors, and add new features conveniently for users. Training capability for the detection of specific gases using embedded machine learning algorithms for the detection of specific gases, offering a level of customization and advanced security that current devices do not provide. Specifically designed for passive security, remote assistance and advanced home automation applications. Very small size. Long-lasting batteries, even up to two and a half years. EXPLANATION OF THE INVENTION By way of explanation of the invention, the "Multiprotocol sensor unit for security and telecare Multiprotocol sensor unit for the field of security and telecare with bidirectional communication, remote update and computing on the terminal" object of this invention, consists of a single module provided with the corresponding housing that integrates on its internal board a control microcontroller with the ability to transmit and receive data in the 869 MHz and 2.4 GHz bands, a wireless communication system by means of PCB antennas (on the printed circuit board), optimized for transmission and reception operations of signals in the aforementioned 869 MHz and 2.4 GHz bands, a power source according to two AAA batteries, as well as the following sensors; A. Long-range PIR (passive infrared detector) sensor for presence detection with a range of up to nine meters to detect movement in the room. B. Low-power accelerometer capable of recording impacts or vibrations configurable by acceleration threshold. C. Environmental VOC sensor that measures air quality based on relative concentrations of volatile organic compounds, CO, temperature, relative humidity and atmospheric pressure. D. Ambient light sensor capable of detecting lighting variations to determine states such as lights on / off. The device features three modes of operation: Configuration mode: Bluetooth activation to set parameters such as data transmission frequency or vibration threshold. Link mode: periodic emission of alarms to facilitate pairing with a gateway or terminal. Normal mode: autonomous operation where alerts, periodic shipments and energy monitoring are managed. Finally, it also includes FOTA functionality for remote firmware updates and battery status monitoring. DESCRIPTION OF THE DRAWINGS To complement the description being made and in order to help a better understanding of the characteristics of the invention, according to a preferred embodiment thereof, a set of drawings is included as an integral part of said description, in which, for illustrative and non-limiting purposes, the following has been represented: Figure 1.- Main perspective view of the "Multiprotocol sensor unit for security and telecare Multiprotocol sensor unit for the field of security and telecare with bidirectional communication, remote update and computing on the terminal". Figure 2.- Main elevation view of the inner plate of the "Multiprotocol sensor unit for security and teleassistance Multiprotocol sensor unit for the field of security and teleassistance with bidirectional communication, remote update and computing on the terminal" which forms the support of all its components. The following constituent elements can be highlighted in the aforementioned figures: 1. Long-range PIR sensor (passive infrared detectors) for presence detection. 2. Accelerometer with configurable threshold for the detection of impacts and vibrations on three axes. 3. Environmental air quality sensor that integrates the measurement of temperature, humidity, atmospheric pressure and volatile organic compounds. 4. Ambient light sensor. EXAMPLE OF PREFERRED REALIZATION As an example of a preferred embodiment, the "Multiprotocol sensor unit for security and telecare with bidirectional communication, remote updating, and terminal computing" can be implemented as shown in Figure 1, according to an enclosure containing an internal board as shown in Figure 2, housing a control microcontroller capable of transmitting and receiving data in the 869 MHz and 2.4 GHz bands, a wireless communication system using PCB antennas (on the printed circuit board) optimized to minimize the size and cost of the device in the transmission and reception operations of signals in the aforementioned 869 MHz and 2.4 GHz bands, a power source using two standard AAA batteries, without the need for external power, as well as the following sensors; A. Long-range PIR (passive infrared detector) sensor for presence detection (1) for presence detection with a range of up to 10 meters. B. Low power accelerometer (2) . with configurable threshold for the detection of impacts and vibrations on 3 axes. C. Environmental sensor that measures air quality (3), for example, according to the IAQ index, including relative concentrations of volatile organic compounds, CO level, temperature, relative humidity, and atmospheric pressure. D. Ambient light sensor (4) to detect changes in natural or artificial lighting. The "Multiprotocol sensor unit for security and telecare Multiprotocol sensor unit for the field of security and telecare with bidirectional communication remote update and computing on the terminal" allows initial configuration via Bluetooth interface and preview with unique identifier based on the device's MAC address, to offer autonomous operation with periodic status sending, event alerts, and battery level monitoring. Finally, the system also allows for remote firmware updates (FOTA) without physical intervention, as well as training for the identification of Volatile Organic Compounds of any type through an embedded Machine Learning system for the identification of gases and odors. It is not considered necessary to provide a more extensive description for any expert in the field to understand the scope of the invention and the advantages derived from it in its various applications. Likewise, the different sensors used to manufacture the various elements described, as well as the designs, shapes, dimensions, and / or communication, control, or learning technologies employed for the purposes described, may be subject to variation, provided that this does not alter the essential nature of the invention. The terms used in this description should be understood in a broad and non-restrictive sense.

Claims

1. A multiprotocol sensor unit for the security and telecare field with bidirectional communication, remote updating, and terminal computing, characterized by integrating on its internal board a control microcontroller capable of transmitting and receiving data in the 869 MHz and 2.4 GHz bands, a wireless communication system using PCB antennas optimized for signal transmission and reception in the aforementioned 869 MHz and 2.4 GHz bands, a power source consisting of two AAA batteries, and the following sensors: A. Long-range PIR (passive infrared) sensor for presence detection (1). B. Low-power accelerometer (2). C. Environmental sensor that measures air quality (3), including relative concentrations of volatile organic compounds, CO2 level, temperature, relative humidity, and atmospheric pressure. D. Ambient light sensor (4).