WO2020057345A1

WO2020057345A1 - Method and system for switching operating state of serial port, bluetooth tracking device, and storage medium

Info

Publication number: WO2020057345A1
Application number: PCT/CN2019/103679
Authority: WO
Inventors: 赵晓宇
Original assignee: 西安中兴新软件有限责任公司
Priority date: 2018-09-18
Filing date: 2019-08-30
Publication date: 2020-03-26
Also published as: CN110913377B; CN110913377A

Abstract

Embodiments of the present invention relate to the technical filed of communications. Disclosed are a method and system for switching an operating state of a serial port, a Bluetooth tracking device, and a storage medium. The method comprises: when the Bluetooth tracking device is in an LTE mode, monitoring a Bluetooth operating state of a processor in real time, the Bluetooth operating state comprising a Bluetooth broadcast state and a Bluetooth idle state; when the Bluetooth operating state is the Bluetooth broadcast state, loading the serial port; when the Bluetooth operating state is the Bluetooth idle state, unloading the serial port. According to the embodiments of the present invention, low power consumption of the serial port can be achieved, and the power consumption of the Bluetooth tracking device in the LTE mode is reduced.

Description

Method, system, Bluetooth tracking device and storage medium for switching working status of serial port

This application claims priority from Chinese patent application CN201811087044.7 entitled "Method, System, Bluetooth Tracking Device, and Storage Medium for Switching Serial Port Working Status" filed on September 18, 2018, the entire contents of which are incorporated herein by reference. in.

Technical field

The present invention relates to the field of communication technologies, and in particular, to a method, a system, a Bluetooth tracking device, and a storage medium for switching working states of a serial port.

Background technique

In daily life, the loss of some important items can cause a lot of inconvenience, such as mobile phones, wallets, keys, important documents, etc. In addition, in some cases, children or pets are easily lost when they are not noticed. To reduce this situation, Bluetooth trackers based on wireless communication technology are applied to the safety of these important items, people or pets.

The Bluetooth tracker generally consists of two parts: a Microcontroller Unit (MCU) and a Modem based on Bluetooth low power. The MCU is a Bluetooth low power chip running a real-time operating system (RTOS). The MCU and Modem are connected through serial communication. After the Bluetooth tracker is turned on, it generally includes two working modes: one is the Bluetooth Low Energy (BLE) mode. In the BLE mode, the Bluetooth tracker and the smart terminal carried by the user are in a Bluetooth connection state. When the Bluetooth tracker communicates with the smart terminal through a Bluetooth connection, the serial port between the Modem and the MCU is turned off, and the product is at a low power consumption level. The other is the Long Term Evolution (LTE) mode. In the LTE mode, the Bluetooth connection between the Bluetooth tracker and the smart terminal carried by the user is disconnected. The MCU needs to communicate with the smart terminal through the modem. Therefore, the serial port between the MCU and the modem is always on, and the overall power consumption of the product is high. However, because the Bluetooth broadcast mode of the MCU in the Bluetooth tracker is periodic, that is, after the MCU performs a Bluetooth broadcast, it will wait for a period of time and then perform the next broadcast. It is not a continuous Bluetooth broadcast, so In the LTE mode, if the serial port between the MCU and the modem is always on, unnecessary power consumption will be wasted.

Summary of the Invention

In view of this, an object of the embodiments of the present invention is to provide a method, a system, a Bluetooth tracking device, and a storage medium for switching the working state of a serial port, so as to solve the above-mentioned LTE mode, if the serial port between the MCU and the modem is always open , Will cause unnecessary waste of power.

The technical solutions adopted by the present invention to solve the above technical problems are as follows:

According to an aspect of the embodiment of the present invention, a method for switching the working state of a serial port is provided, which is applied to a Bluetooth tracking device. The Bluetooth tracking device includes a processor and a modem, and the processor and the modem are connected through serial communication. Methods include:

When the Bluetooth tracking device is in the LTE mode, the Bluetooth operation status of the processor is monitored in real time, and the Bluetooth operation status includes a Bluetooth broadcast status and a Bluetooth idle status;

When the Bluetooth operating state is a Bluetooth broadcast state, the serial port is loaded; when the Bluetooth operating state is a Bluetooth idle state, the serial port is unloaded.

According to another aspect of the embodiments of the present invention, there is provided a system for switching the working state of a serial port, which is applied to a Bluetooth tracking device. The Bluetooth tracking device includes a processor and a modem, and the processor and the modem are connected through serial communication. The system includes:

A monitoring unit, configured to monitor the Bluetooth running state of the processor in real time when the Bluetooth tracking device is in the LTE mode, the Bluetooth running state includes a Bluetooth broadcast state and a Bluetooth idle state;

A first control unit is configured to load the serial port when the Bluetooth running state is a Bluetooth broadcast state; and unload the serial port when the Bluetooth running state is a Bluetooth idle state.

According to yet another aspect of the embodiments of the present invention, a Bluetooth tracking device is provided, which includes a processor and a modem. The processor is in serial communication connection with the modem shown. The Bluetooth tracking device further includes a memory and is stored on the memory. A computer program that can be run on the processor. When the computer program is executed by the processor, the steps of the method for switching the working state of a serial port are implemented.

According to still another aspect of the embodiments of the present invention, a storage medium is provided. The storage medium stores a computer program, and when the computer program is executed by a processor, implements the steps of the foregoing method for switching a working state of a serial port.

In the method, system, Bluetooth tracking device, and storage medium provided by the embodiments of the present invention, since the Bluetooth running state of the processor is monitored in real time when the Bluetooth tracking device is in the LTE mode, the Bluetooth running state includes Bluetooth broadcast state and Bluetooth idle state; loading the serial port when the Bluetooth operating state is the Bluetooth broadcast state; unloading the serial port when the Bluetooth operating state is the Bluetooth idle state, thereby achieving low power consumption of the serial port, Reduce the power consumption of Bluetooth tracking devices in LTE mode.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only the present invention. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

1 is a block diagram of a basic structure of a Bluetooth tracking device according to an embodiment of the present invention;

2 is a schematic flowchart of an implementation method of a method for switching a working state of a serial port provided by Embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of a ratio between a Bluetooth broadcast state time and a Bluetooth idle state time in a Bluetooth broadcast cycle in the method for switching a working state of a serial port provided by Embodiment 1 of the present invention; FIG.

4 is a schematic flowchart of a method for switching a working state of a serial port provided by Embodiment 2 of the present invention;

5 is a schematic structural diagram of a system for switching a working state of a serial port according to a third embodiment of the present invention;

FIG. 6 is a detailed structure diagram of a Bluetooth tracking device according to a fourth embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be more clearly understood by the present invention, the present invention 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 only used to explain the present invention, and are not intended to limit the present invention.

FIG. 1 is a block diagram of a basic structure of a Bluetooth tracking device according to an embodiment of the present invention. For convenience of explanation, only the parts related to the embodiment of the present invention are shown.

As shown in FIG. 1, the Bluetooth tracking device 1 in the embodiment of the present invention includes a processor 11 and a modem 12, and the processor 11 and the modem 12 are connected through a serial communication. The processor is a Bluetooth low energy processor, and an RTOS operating system runs on the processor 11. The operating modes of the RTOS operating system in a running state include a BLE mode and an LTE mode. Wherein, in the BLE mode, the Bluetooth tracking device 1 establishes a Bluetooth connection with the smart terminal carried by the user, and the two are connected through Bluetooth communication. In the LTE mode, the processor 11 in the Bluetooth tracking device 1 is in a Bluetooth low-power broadcast mode. The broadcast message needs to be transmitted to the modem 12 through the serial port, and the modem 12 sends the message to the modem via wireless communication. Smart terminal carried by the user.

Based on the basic structural block diagram of the Bluetooth tracking device 1 described above, the following embodiments of the present invention are proposed.

Example one

FIG. 2 is a schematic flowchart of a method for switching a working state of a serial port provided by Embodiment 1 of the present invention. The method is executed by the processor 11 in the Bluetooth tracking device 1 shown in FIG. 1. As shown in FIG. 2, the method for switching the working state of a serial port provided in this embodiment includes the following steps:

In step S201, when the Bluetooth tracking device 1 is in the LTE mode, the Bluetooth running state of the processor 11 is monitored in real time, and the Bluetooth running state includes a Bluetooth broadcast state and a Bluetooth idle state.

There are two ways for the Bluetooth tracking device 1 to enter the LTE mode: one is that after the Bluetooth tracking device 1 is turned on and the Bluetooth tracking application on the smart terminal carried by the user performs a registration binding operation, the Bluetooth tracking device 1 It will be in LTE mode; the other is that when the Bluetooth tracking device 1 and the smart terminal are in a Bluetooth connection state, the Bluetooth tracking device 1 is in a BLE mode, and when the Bluetooth connection is disconnected, the Bluetooth tracking Device 1 will automatically switch to LTE mode.

In the LTE mode, the processor 11 in the Bluetooth tracking device 1 is in a Bluetooth low energy broadcast mode. In the Bluetooth low energy broadcast mode, the Bluetooth low energy tracking device broadcasts data packets periodically and scans the surrounding smart devices. Assume that the total duration of a broadcast cycle is T, and the processor 11 is within T1 time. Send a broadcast data packet, which is in idle state within T2 time, T = T1 + T2. Then, in the time T1, the Bluetooth running state of the processor 11 is in the Bluetooth broadcast state; in the time T2, the Bluetooth low-power Bluetooth running state is in the Bluetooth idle state. Referring to FIG. 3, in general, T2 occupies about 99% of the time in a broadcast cycle time.

In step S202, the serial port is loaded when the Bluetooth running state is a Bluetooth broadcast state; when the Bluetooth running state is a Bluetooth idle state, the serial port is unloaded.

In this embodiment, when the Bluetooth running state of the processor 11 is a Bluetooth broadcast state, the serial port driver is synchronously loaded and the serial port initialization action is performed, so that the serial port task in the processor 11 is also in a working state; when the processor 11 ’s The Bluetooth running state is idle. When no broadcast packet is sent, the serial port driver is unloaded and the serial port is closed. Since the Bluetooth tracking device 1 is in the LTE mode, each Bluetooth broadcast cycle is only 1% of the time in the Bluetooth broadcast state. Therefore, after synchronizing the Bluetooth broadcast state and the serial port working state, the low power consumption of the serial port task can be achieved, thereby reducing Bluetooth tracks the power consumption of device 1.

In this embodiment, the method further includes:

When the Bluetooth tracking device 1 is in the LTE mode, starting the serial port and Bluetooth synchronous loading and unloading function of the Bluetooth tracking device 1;

When the Bluetooth tracking device 1 exits the LTE mode, the serial port and Bluetooth synchronous loading and unloading functions of the Bluetooth tracking device 1 are disabled.

In this embodiment, when the serial port of the Bluetooth tracking device 1 and the Bluetooth synchronous loading and unloading function are started, the processor 11 of the Bluetooth tracking device 1 is triggered to monitor its own Bluetooth running state in real time and enter the state of switching the serial port working state. Process flow. Because the serial port and the Bluetooth synchronous loading and unloading function are enabled only when the Bluetooth tracking device 1 is in the LTE mode, when the Bluetooth tracking device 1 exits the LTE mode, the serial port and Bluetooth synchronous loading and unloading function are turned off, which can further save The power consumption of the Bluetooth tracking device 1 is described.

It can be seen from the foregoing that the method for switching the working status of a serial port provided in this embodiment monitors the Bluetooth running status of the processor 11 in real time when the Bluetooth tracking device 1 is in the LTE mode; when the Bluetooth running status is a Bluetooth broadcast status The serial port is loaded; when the Bluetooth running state is the Bluetooth idle state, the serial port is unloaded, so that the serial port and the Bluetooth working state can be synchronized, the low power consumption of the serial port task is reduced, and the whole device of the Bluetooth tracking device 1 is reduced Power consumption.

Example two

FIG. 4 is a schematic flowchart of a method for switching a working state of a serial port provided by Embodiment 2 of the present invention. The method is executed by the processor 11 in the Bluetooth tracking device 1 shown in FIG. 1. As shown in FIG. 3, the method for switching the working status of a serial port provided in this embodiment includes the following steps:

In step S401, when the Bluetooth tracking device 1 is in the LTE mode, the Bluetooth running state of the processor 11 is monitored in real time, and the Bluetooth running state includes a Bluetooth broadcast state and a Bluetooth idle state;

In step S402, when the Bluetooth operating state is a Bluetooth broadcast state, the serial port is loaded; when the Bluetooth operating state is a Bluetooth idle state, the serial port is unloaded.

It should be noted that, since steps S301 to S302 in this embodiment are completely the same as the implementation methods of steps S201 to S202 in the previous embodiment, details are not described herein again.

Step S403: When receiving a control instruction for serial communication received by the user, determine whether the Bluetooth running state of the processor 11 is in the Bluetooth idle state. If so, go to step S404; if not, go to step S404. Step S407.

Step S404, loading the serial port.

In this embodiment, there are buttons on the side of the processor 11, and the user can perform operations through the buttons, such as: single-click, double-click, and triple-click, corresponding to a sequence of keys with different meanings. The serial port is sent to the modem 12 side, and the modem 12 implements different functions according to different key values. Each key sequence corresponds to a control instruction.

In this embodiment, when the processor 11 receives a control instruction input by a user through a key, determines that the Bluetooth motion state is in the Bluetooth idle state, loads and initializes the serial port, and switches the serial port from the off state to the on state. The processor 11 can be caused to send the control instruction to the Modem through the serial port, and the Modem completes the corresponding control function according to the control instruction.

Step S405: After the control instruction is sent to the modem 12 through the serial port, determine whether the Bluetooth running state of the processor 11 is still in the Bluetooth idle state. If the Bluetooth running state is still in the Bluetooth idle state, then Go to step S406; if the Bluetooth running state is switched to the Bluetooth broadcast state, go to step S407.

Step S406: uninstall the serial port.

Step S407, keeping the working state of the serial port unchanged.

In a specific implementation example, the user's key press action and the corresponding Bluetooth tracking device 1 response function are as follows:

In this embodiment, the GPS required by the Bluetooth tracking device 1 for positioning and the microphone required for recording are set on the Modem side. After the user presses the key, only the key sequence needs to be sent to the Modem side through the serial port, and the rest The function Modem can be completed by itself, no longer relying on the processor 11 and the serial port. Therefore, in this embodiment, after detecting that the control instruction is sent, if the Bluetooth running state of the processor 11 is still in the Bluetooth idle state, uninstall the serial port driver and close the serial port. This can save power consumption of the serial port and reduce Bluetooth The whole power consumption of the tracking device 1 extends the standby time of the Bluetooth tracking device 1 in an emergency state.

It can be seen from the foregoing that, compared with the previous embodiment, the method for switching the working state of the serial port provided in this embodiment is that when the control command for serial communication is received by the user, it is detected that the Bluetooth running state of the processor 11 is idle. In the state, the serial port is loaded, so that the processor 11 can send the control instruction to the Modem through the serial port, so that the Bluetooth tracking device 1 can implement the corresponding control function; since the Bluetooth operation status of the processor 11 is detected after the control instruction is transmitted, When still in the idle state, uninstalling the serial port can save power consumption of the serial port, thereby reducing the overall power consumption of the Bluetooth tracking device 1, and extending the standby time of the Bluetooth tracking device 1 in the emergency state.

Example three

FIG. 5 is a schematic structural diagram of a system for switching a working state of a serial port according to a third embodiment of the present invention. The system is deployed in the processor 11 in the Bluetooth tracking device 1 shown in FIG. 1. For convenience of explanation, only parts related to this embodiment are shown.

As shown in FIG. 5, the system for switching the working state of a serial port provided in this embodiment includes:

A monitoring unit, configured to monitor the Bluetooth running state of the processor 11 in real time when the Bluetooth tracking device 1 is in the LTE mode, the Bluetooth running state includes a Bluetooth broadcast state and a Bluetooth idle state;

The system further includes:

A first determining unit, configured to determine whether a Bluetooth running state of the processor 11 is in a Bluetooth idle state when a control instruction for serial communication is received by a user;

A second control unit is configured to load the serial port if the Bluetooth operating state is in a Bluetooth idle state.

The system further includes:

A second determining unit, configured to determine whether the Bluetooth running state of the processor 11 is still in a Bluetooth idle state after the control instruction is sent to the modem 12 through the serial port;

A third control unit is configured to uninstall the serial port if the Bluetooth running state is still in the Bluetooth idle state; if the Bluetooth running state is switched to the Bluetooth broadcast state, keep the working state of the serial port unchanged.

The system further includes a synchronization function configuration unit for:

When the Bluetooth tracking device 1 is in the LTE mode, start the serial port and Bluetooth synchronous loading and unloading functions of the Bluetooth tracking device 1;

The system for switching the working state of the serial port in the embodiment of the present invention belongs to the same concept as the method for switching the working state of the serial port in the first embodiment or the second embodiment. For the detailed implementation process, see the corresponding method embodiment, and the technology in the method embodiment. The features are correspondingly applicable in this embodiment of the device, and are not repeated here.

Those of ordinary skill in the art can understand that all or some steps in the method disclosed in this embodiment can be implemented as software, firmware, hardware, and appropriate combinations thereof.

Embodiment 4

FIG. 6 is a detailed structure diagram of a Bluetooth tracking device according to a fourth embodiment of the present invention. For convenience of explanation, only the parts related to this embodiment are shown.

As shown in FIG. 6, the Bluetooth tracking device 1 provided in this embodiment includes a processor 11 and a modem 12. The processor 11 and the modem 12 are connected through serial communication. The Bluetooth tracking device 1 further includes a memory 13 and A computer program 14 stored in the memory 13 and executable on the processor. When the computer program 14 is executed by the processor 11, the computer program 14 implements the switching serial port work provided in the first embodiment or the second embodiment. Steps in the method of status.

Those skilled in the art can understand that FIG. 5 is only an example of the Bluetooth tracking device 1, and does not constitute a limitation on the Bluetooth tracking device 1. In actual applications, the Bluetooth tracking device 1 may include more or less than the illustration Components, or a combination of certain components, or different components.

The Bluetooth tracking device 1 according to the embodiment of the present invention belongs to the same concept as the method for switching the working state of the serial port in the first embodiment or the second embodiment. The specific implementation process is described in detail in the method embodiment, and the technical features in the method embodiment are in the device. The embodiments are applicable correspondingly, and are not repeated here.

Example Six

An embodiment of the present invention provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, implements the steps of the method for switching a working state of a serial port as provided in the foregoing Embodiment 1 or Embodiment 2.

The storage medium of the embodiment of the present invention belongs to the same concept as the method of Embodiment 1 or Embodiment 2. The specific implementation process is detailed in the corresponding method embodiment, and the technical features in the method embodiment are implemented in the computer-readable storage medium. The examples are applicable correspondingly, and will not be repeated here.

Those of ordinary skill in the art can understand that all or some of the steps, systems, and functional modules / units in the devices disclosed in the methods above can be implemented as software, firmware, hardware, and appropriate combinations thereof.

In a hardware implementation, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components execute cooperatively. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile implemented in any method or technology used to store information such as computer-readable instructions, data structures, program modules or other data. Removable, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that a communication medium typically contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium .

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, without thereby limiting the scope of rights of the present invention. Any modification, equivalent replacement, and improvement made by those skilled in the art without departing from the scope and substance of the present invention shall fall within the scope of the rights of the present invention.

Claims

A method for switching the working state of a serial port is applied to a Bluetooth tracking device. The Bluetooth tracking device includes a processor and a modem, and the processor and the modem are connected through serial communication. The method includes:

When the Bluetooth tracking device is in the LTE mode, the Bluetooth operation status of the processor is monitored in real time, and the Bluetooth operation status includes a Bluetooth broadcast status and a Bluetooth idle status;

When the Bluetooth operating state is a Bluetooth broadcast state, the serial port is loaded; when the Bluetooth operating state is a Bluetooth idle state, the serial port is unloaded.
The method according to claim 1, wherein the method further comprises:

When receiving a control instruction input by a user for serial communication, determining whether the Bluetooth running state of the processor is in a Bluetooth idle state;

If the Bluetooth running state is a Bluetooth idle state, load the serial port.
The method for switching the working state of a serial port according to claim 2, wherein, if the Bluetooth operating state is in a Bluetooth idle state when a control instruction for serial communication is received by a user, the serial port is loaded after the serial port is loaded. include:

After the control instruction is sent to the modem via the serial port, determining whether the Bluetooth running state of the processor is still in the Bluetooth idle state;

If the Bluetooth operating state is still in the Bluetooth idle state, the serial port is uninstalled; if the Bluetooth operating state is switched to the Bluetooth broadcast state, the working state of the serial port is maintained.
The method according to claim 1, wherein the method further comprises:

When the Bluetooth tracking device is in the LTE mode, start the serial port of the Bluetooth tracking device and the Bluetooth synchronous loading and unloading function;

When the Bluetooth tracking device exits the LTE mode, the serial port of the Bluetooth tracking device and the Bluetooth synchronous loading and unloading function are closed.
A system for switching the working state of a serial port is applied to a Bluetooth tracking device. The Bluetooth tracking device includes a processor and a modem, and the processor and the modem are connected through serial communication. The system includes:

A monitoring unit, configured to monitor the Bluetooth running state of the processor in real time when the Bluetooth tracking device is in the LTE mode, the Bluetooth running state includes a Bluetooth broadcast state and a Bluetooth idle state;

A first control unit is configured to load the serial port when the Bluetooth running state is a Bluetooth broadcast state; and unload the serial port when the Bluetooth running state is a Bluetooth idle state.
The system of claim 5, wherein the system further comprises:

A first determining unit, configured to determine whether a Bluetooth running state of the processor is in a Bluetooth idle state when a control instruction for serial communication is received by a user;

A second control unit is configured to load the serial port if the Bluetooth operating state is in a Bluetooth idle state.
The system of claim 6, further comprising:

A second determining unit, configured to determine whether the Bluetooth running state of the processor is still in a Bluetooth idle state after the control instruction is sent to the modem through the serial port;

A third control unit is configured to uninstall the serial port if the Bluetooth running state is still in the Bluetooth idle state; if the Bluetooth running state is switched to the Bluetooth broadcast state, keep the working state of the serial port unchanged.
The system of claim 5, wherein the system further comprises a synchronization function configuration unit configured to:

When the Bluetooth tracking device is in the LTE mode, start the serial port of the Bluetooth tracking device and the Bluetooth synchronous loading and unloading function;

When the Bluetooth tracking device exits the LTE mode, the serial port of the Bluetooth tracking device and the Bluetooth synchronous loading and unloading function are closed.
A Bluetooth tracking device includes a processor and a modem, and the processor is communicatively connected to the serial port of the modem, wherein the Bluetooth tracking device further includes a memory and is stored on the memory and can run on the processor. A computer program that, when executed by the processor, implements the steps of the method for switching the working state of a serial port according to any one of claims 1 to 4.
A storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the method for switching the working state of a serial port according to any one of claims 1 to 4 are implemented.