WO2023279789A1

WO2023279789A1 - Long-life bluetooth wireless motion sensor

Info

Publication number: WO2023279789A1
Application number: PCT/CN2022/085535
Authority: WO
Inventors: 刘均; 刘益闯
Original assignee: 浙江超级电气科技有限公司
Priority date: 2021-07-08
Filing date: 2022-04-07
Publication date: 2023-01-12
Also published as: CN113365332A

Abstract

The present patent relates to the technical field of motion sensors, in particular to a long-life Bluetooth wireless motion sensor. The long-life Bluetooth wireless motion sensor comprises a sensor housing, and further comprises: an acceleration sensor, which is arranged in the sensor housing and is used to detect a motion acceleration value; a gyroscope, which is arranged in the sensor housing and is used to detect a motion condition; a master control Bluetooth chip, which is arranged in the sensor housing and is used to receive detection data from the acceleration sensor and the gyroscope, and to determine the working states of the acceleration sensor and the gyroscope according to the detection data; a rechargeable battery, which is arranged in the sensor housing and used to supply power to the acceleration sensor, the gyroscope and the master control Bluetooth chip; and a wireless charging assembly, which is used to charge the rechargeable battery. The wireless motion sensor in the present patent is charged by using a solar cell as a rechargeable battery, and, in coopertaion with the accelerometer and the gyroscope, which have a low power consumption, and a Bluetooth chip, which has a low power, achieves the purpose of long-term operation without replacing a battery, and is also more environmentally friendly.

Description

A long-life bluetooth wireless motion sensor

technical field

This patent belongs to the technical field of motion sensors, in particular to a long-life bluetooth wireless motion sensor.

Background technique

The existing motion sensors basically use wired power supply, and some also use wireless solutions. The existing wireless solutions are generally powered by primary batteries or rechargeable batteries. Due to the limited battery power, it is necessary to replace or charge the batteries for the sensors on a regular basis, which is inconvenient and expensive to replace. , nor environmentally friendly.

technical solution

The purpose of this patent is to provide a long-life bluetooth wireless motion sensor that can effectively increase battery life.

The purpose of this patent is achieved like this:

A long-life bluetooth wireless motion sensor, including a sensor housing, also includes

an acceleration sensor, arranged in the sensor housing, for detecting the motion acceleration value;

A gyroscope, arranged in the sensor housing, is used to detect motion;

The main control bluetooth chip is arranged in the sensor housing and is used to receive the detection data of the acceleration sensor and the gyroscope, and determine the working status of the acceleration sensor and the gyroscope according to the detection data;

A rechargeable battery, arranged in the sensor housing, is used to power the acceleration sensor, the gyroscope and the main control bluetooth chip; and

A wireless charging component is used for charging the rechargeable battery.

Further, the wireless charging assembly includes a solar battery panel installed outside the sensor housing; the solar battery panel is connected with a charging and voltage stabilizing chip, and the charging and voltage stabilizing chip is connected to the rechargeable battery.

Further, the wireless charging set includes a vibration generator connected to a charging voltage stabilizing chip connected to the rechargeable battery.

Further, the rechargeable battery is also connected in series with a Hall switch or a reed switch in the power supply circuit of the acceleration sensor, gyroscope and the main control Bluetooth chip, and a magnet is arranged outside the sensor housing, and the magnet is used for Control the start and stop of the Hall switch.

Further, the sensor housing is provided with a PCB circuit board, and the acceleration sensor, rechargeable battery, gyroscope and main control Bluetooth chip are collectively installed in the PCB circuit board, and the PCB circuit board is encapsulated in the in the sensor housing.

Beneficial effect

Compared with the prior art, the outstanding and beneficial technical effects of this patent are:

The wireless motion sensor in this patent charges the rechargeable battery through the solar battery, and cooperates with the low-power accelerometer, gyroscope and low-power Bluetooth chip to achieve the purpose of long-term work without changing the battery, and is more environmentally friendly.

Description of drawings

Fig. 1 is the structural representation of this patent.

Fig. 2 is a side sectional view of this patent.

The meanings of the symbols in the figure:

1. Sensor shell; 2. Acceleration sensor; 3. Gyroscope; 4. Main control Bluetooth chip; 5. Rechargeable battery; 6. Wireless charging component; 7. Hall switch or reed switch; 8. PCB circuit Board; 9. Diode; 10. Charging voltage regulator chip; 11. Bluetooth antenna.

Embodiments of the present invention

Below in conjunction with specific embodiment this patent is described further:

As shown in Figure 1-2, a long-life bluetooth wireless motion sensor includes a sensor housing 1, the sensor housing 1 is made of plastic material, and a PCB circuit board 8 is arranged in the sensor housing 1. An acceleration sensor 2, a rechargeable battery 5, a gyroscope 3 and a main control Bluetooth chip 4 are collectively installed on the PCB circuit board 8, and the PCB circuit board 8 is fixed in the sensor housing 1 by encapsulating with glue , the long-life bluetooth wireless motion sensor has vibration resistance and miniaturization through glue potting package and centralized installation of PCB circuit board 8 . The Bluetooth wireless motion sensor is generally placed on any moving part to be monitored by pasting, screw fixing, etc.

Wherein, the acceleration sensor 2 is arranged in the sensor housing 1 for detecting the motion acceleration value, and the acceleration sensor 2 is a sensor capable of measuring acceleration. It usually consists of mass block, damper, elastic element, sensitive element and adjustment circuit. During the acceleration process, the sensor uses Newton's second law to obtain the acceleration value by measuring the inertial force on the mass block;

The gyroscope 3 is arranged in the sensor housing 1, and is used to detect motion, and is specifically used to detect object deviation during motion; the gyroscope 3 generally includes a gyro rotor, an inner and an outer frame, and a torque motor or signal sensor.

The main control bluetooth chip 4 is arranged in the sensor housing 1, for receiving the detection data of the acceleration sensor 2 and the gyroscope 3, and determining the working state of the acceleration sensor 2 and the gyroscope 3 according to the detection data; The bluetooth chip 4 generally has a micro-control unit, that is, a single-chip microcomputer, which analyzes and calculates the gyroscope 3 and the acceleration sensor 2 through the micro-control unit to determine the motion state of the current moving parts. The main control bluetooth chip 4 is also provided with a bluetooth antenna 11 for bluetooth connection to external devices, such as external display screens, mobile phones, etc., thereby demonstrating the working conditions of the long-life bluetooth wireless motion sensor.

The rechargeable battery 5 is arranged in the sensor housing 1 for powering the acceleration sensor 2 , the gyroscope 3 and the main control Bluetooth chip 4 .

Further, the wireless charging assembly 6 includes a solar panel, and the solar panel is installed outside the sensor housing 1; the solar panel is connected to a charging voltage stabilizing chip 10 through a wire, and the charging voltage stabilizing chip 10 Connect the rechargeable battery 5; the solar panel can be arranged with the sensor housing 1, so as to charge the long-life bluetooth wireless motion sensor at the same time to increase the battery life of the product; the charging voltage regulator chip 10 and the The rechargeable battery 5 is also connected with a diode 9 for confirming the charging direction.

In other embodiments, the wireless charging group includes a vibration generator connected to a charging voltage stabilizing chip 10, and the charging voltage stabilizing chip 10 is connected to the rechargeable battery 5; the moving parts will simultaneously drive vibration to generate electricity when moving The machine works to charge, thereby effectively utilizing the kinetic energy of the moving parts and further increasing the battery life.

Further, the rechargeable battery 5 is also connected in series with a Hall switch or a reed switch 7 in the power supply circuit of the acceleration sensor 2, the gyroscope 3 and the main control Bluetooth chip 4, outside the sensor housing 1 It is equipped with a magnet, and the magnet is used to control the start and stop of the Hall switch or the reed switch 7 . When the magnet is close to the Hall switch or the reed switch 7, it will control the start and stop of the Hall switch or the reed switch 7, so as to drive the start and stop of the Hall switch or the reed switch 7 in this patent. Miniature long life bluetooth wireless motion sensor for start and stop. During the delivery and storage of the long-life Bluetooth wireless motion sensor, in order not to consume battery power as much as possible, the user magnet is close to the Hall switch or reed switch 7, so that the power supply circuit in the long-life Bluetooth wireless motion sensor Disconnect, remove the magnet when it needs to work to make the power supply circuit start to work; this switch can also be used as a reset button, when the long-life Bluetooth wireless motion sensor crashes, it will automatically power off and reset if it is approached with a magnet.

It should be noted that the long-life Bluetooth wireless motion sensor is generally fixed on some high-speed moving parts, such as bicycle hubs, so it is difficult to set button switches on the surface of the long-life Bluetooth wireless motion sensor. Specifically, the long-life bluetooth wireless motion sensor utilizes one side plane of the bicycle disc brake disc, and uses double-sided adhesive to paste the present invention on the disc brake disc, or install the present invention on the spokes of the bicycle, the central axis of the pedal When the bicycle is riding, it can realize the real-time monitoring of the wheel speed, vehicle speed or pedal speed, and send the monitoring data to mobile phones and other Bluetooth receiving devices through the Bluetooth antenna 11. Send the aforementioned exercise information.

The above-mentioned embodiments are only preferred embodiments of this patent, and are not intended to limit the scope of protection of this patent. Therefore: all equivalent changes made according to the structure, shape, and principle of this patent should be covered by the protection of this patent. within range.

Claims

A long-life bluetooth wireless motion sensor, comprising a sensor housing (1), is characterized in that: also includes

an acceleration sensor (2), arranged in the sensor housing (1), for detecting motion acceleration values;

A gyroscope (3), arranged in the sensor housing (1), is used to detect motion;

The main control bluetooth chip (4), which is arranged in the sensor housing (1), is used to receive the detection data of the acceleration sensor (2) and the gyroscope (3), and determine the acceleration sensor (2) and the gyroscope according to the detection data. instrument (3) working status;

A rechargeable battery (5), arranged in the sensor housing (1), is used to supply power for the acceleration sensor (2), the gyroscope (3) and the main control bluetooth chip (4); and

A wireless charging component (6), used for charging the rechargeable battery (5).
A long-life bluetooth wireless motion sensor according to claim 1, characterized in that: the wireless charging assembly (6) includes a solar panel, and the solar panel is installed outside the sensor housing (1); The solar battery panel is connected with a charging voltage stabilizing chip (10), and the charging voltage stabilizing chip (10) is connected with the rechargeable battery (5).
A long-life bluetooth wireless motion sensor according to claim 1, characterized in that: the wireless charging group includes a vibration generator, the vibration generator is connected with a charging voltage stabilizing chip (10), and the charging voltage stabilizing chip (10) Connect the rechargeable battery (5).
A long-life bluetooth wireless motion sensor according to any one of claims 1-3, characterized in that: the rechargeable battery (5) supplies the accelerometer (2), gyroscope (3) and main control The power supply circuit of the Bluetooth chip (4) is also connected in series with a Hall switch or a reed switch (7), and a magnet is arranged outside the sensor housing (1), and the magnet is used to control the start and stop of the Hall switch.
A long-life bluetooth wireless motion sensor according to any one of claims 1-3, characterized in that: the sensor housing (1) is provided with a PCB circuit board (8), and the acceleration sensor (2) , a rechargeable battery (5), a gyroscope (3) and a main control bluetooth chip (4) are centrally installed in the PCB circuit board (8), and the PCB circuit board (8) is glued and packaged in the sensor shell body (1).