A super-low-power wake-up method based on a synchronization protocol meter application scenario

Abstract

The application discloses a kind of ultra-low power consumption wake-up methods based on synchronous protocol meter application scene, including S1, according to protocol terminal is assigned to specify the wake-up information of the terminal;S2, terminal enters ultra-low power consumption wake-up mode after once transmission ends;S3, gateway enters deep sleep mode after a round of transmission ends, waits next round data acquisition instruction;S4, after gateway receives data acquisition instruction, before preparing to enter transmission state, gateway enters wake-up mode from deep sleep mode, and the agreed terminal grouping is awakened in batches transmission;S5, for a group of terminals, gateway continues to send agreed signal, and the length of interval time matching between gateway and terminal is matched, after sending, gateway is switched to synchronous protocol mode transmission;S6, after terminal receives wake-up information, it will immediately enter timing sleep mode, and wake up after timing, terminal enters synchronous mode;S7, after completing information transmission, gateway and terminal enter respective sleep state and ultra-low power consumption mode.

Description

Technical Field

[0001] This invention relates to the field of Internet of Things (IoT) technology applications, specifically to an ultra-low power wake-up method for metering applications based on a synchronization protocol. Background Technology

[0002] With the development of IoT technology and the rapid increase in the number of IoT devices, low-power communication has become an essential technology.

[0003] Traditional metering applications typically rely on asynchronous protocols for communication. Their low-power wake-up schemes primarily involve periodically waking the terminal device from sleep mode to transmit data. However, this approach has several drawbacks, often including low transmission efficiency and high error rates. This prevents the terminal device from quickly entering sleep mode again, increasing its power consumption. Furthermore, the gateway needs to remain operational to continuously receive data uploaded by the terminal, which hinders the gateway's ability to achieve low power consumption. Summary of the Invention

[0004] To address the aforementioned shortcomings in existing technologies, this invention provides an ultra-low power wake-up method for metering applications based on a synchronization protocol, which solves the problems of low wake-up efficiency and high power consumption in existing metering applications.

[0005] To achieve the aforementioned objectives, the present invention employs the following technical solution: an ultra-low power wake-up method for metering applications based on synchronization protocols, comprising the following steps:

[0006] S1. The terminal is assigned wake-up information according to the protocol.

[0007] S2. After a transmission is completed, the terminal automatically enters the ultra-low power wake-up mode. After entering this mode, it keeps listening for a period of time to obtain the wake-up information sent by the gateway.

[0008] S3. After a round of transmission is completed, the gateway enters a deep sleep mode, waiting for the next round of data acquisition instructions;

[0009] S4. After the gateway receives the data acquisition instruction, before it is ready to enter the transmission state, the gateway enters the wake-up mode from the deep sleep mode and wakes up the agreed terminals in batches for transmission.

[0010] S5. For a group of terminals, the gateway continuously sends a pre-agreed signal with an interval length matching that of the terminals. After sending, the gateway switches to synchronous protocol mode for transmission.

[0011] S6. After receiving the wake-up message, the terminal will immediately enter the timed sleep mode and wake up after the timer expires. The terminal will then enter the synchronization mode to ensure that the gateway is in the normal synchronization protocol mode after waking up.

[0012] S7. After the transmission is completed, the gateway and the terminal enter their respective sleep states and ultra-low power modes.

[0013] Furthermore, the specified information in step S1 includes frequency point, wake-up symbol length, and wake-up address value.

[0014] Furthermore: if the specified information cannot be assigned to a single terminal, the terminals will be woken up in a group.

[0015] Furthermore, the terminal can be woken up at any time when the gateway sends a wake-up signal.

[0016] Furthermore, the workflow of the terminal is as follows:

[0017] The terminal enters ultra-low power wake-up mode and listens for the wake-up signal from the gateway at certain intervals.

[0018] After waking up the terminal, it enters a timed deep sleep and wakes up again after the timer expires, switching to synchronization mode.

[0019] After the terminal completes synchronization with the AP, it accesses the network and sends and receives data. During data transmission, the terminal remains awake to ensure stable data transmission.

[0020] After the data transmission is complete, the terminal will re-enter the ultra-low power wake-up mode and wait for the next wake-up signal.

[0021] Furthermore: the interval for monitoring the terminal is X, (X is a time variable set according to the actual business scenario, ranging from 100ms to 60s).

[0022] Furthermore, the workflow of the gateway is as follows:

[0023] The gateway enters deep sleep mode when idle;

[0024] When the gateway receives a data acquisition command, it automatically enters wake-up mode from deep sleep mode and begins sending wake-up signals to wake up the terminal devices.

[0025] The gateway continuously sends wake-up signals to ensure that all terminal devices can be woken up.

[0026] After the wake-up signal is sent, the gateway switches to synchronous protocol transmission mode;

[0027] The gateway communicates with the terminal and completes data transmission and reception;

[0028] After completing a round of communication, the gateway will re-enter deep sleep mode to save power.

[0029] Furthermore, the duration of the wake-up signal is Y (Y≥X), and after Y is exceeded, the gateway will switch to the synchronous protocol transmission mode.

[0030] The beneficial effects of this invention are as follows:

[0031] (1) This invention is applicable to high-capacity access: based on the synchronization protocol, it can access more terminal devices.

[0032] (2) This invention can save energy: by adopting an ultra-low power wake-up mode, the number of wake-up times of the terminal and the gateway is reduced while ensuring stable network transmission, thereby reducing energy consumption and providing the device with a longer usage time. The gateway can also enter a low power mode when there is no service transmission.

[0033] (3) This invention can improve wake-up efficiency: After the transmission is completed, the terminal enters an ultra-low power wake-up mode and waits for the wake-up signal. Before entering the transmission state, the gateway wakes up the terminal in batches according to the agreed group, which improves the wake-up efficiency. Attached Figure Description

[0034] Figure 1 This is a flowchart of the present invention;

[0035] Figure 2 This describes the specific workflow of the terminal and gateway in this embodiment of the invention. Detailed Implementation

[0036] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0037] like Figure 1 As shown, an ultra-low power wake-up method for metering applications based on synchronization protocols includes the following steps:

[0038] S1. According to the protocol, the terminal is assigned wake-up information, including frequency point, wake-up symbol length, and wake-up address value. If the information cannot be assigned to an individual terminal, the terminals are woken up in a group.

[0039] S2. After a transmission is completed, the terminal automatically enters the ultra-low power wake-up mode. After entering this mode, it keeps listening for a period of time to obtain the wake-up information sent by the gateway.

[0040] S3. After a round of transmission is completed, the gateway enters a deep sleep mode, waiting for the next round of data acquisition instructions;

[0041] S4. After the gateway receives the data acquisition instruction, before it is ready to enter the transmission state, the gateway enters the wake-up mode from the deep sleep mode and wakes up the agreed terminals in batches for transmission.

[0042] S5. For a group of terminals, the gateway continuously sends a pre-agreed signal with an interval length matching that of the terminals. After sending, the gateway switches to synchronous protocol mode for transmission.

[0043] S6. For the terminal, since the wake-up time may occur at any moment when the gateway sends the wake-up signal, the terminal will immediately enter the timed sleep mode after receiving the wake-up information, and wake up after the timer expires. The terminal will enter the synchronization mode to ensure that the gateway is in the normal synchronization protocol mode after waking up.

[0044] S7. After the transmission is completed, the gateway and the terminal enter their respective sleep states and ultra-low power modes.

[0045] Examples of embodiments of the present invention Figure 2 As shown, specifically:

[0046] Assuming there are currently 1000 meters, data needs to be collected and reported once a day, with the data primarily flowing upwards.

[0047] The terminal's workflow is as follows:

[0048] 1. Entering Ultra-Low Power Wake-up Mode: When the terminal is not woken up, it will enter the ultra-low power wake-up mode, at which time the power consumption of the device is very low.

[0049] 2. Listening at regular intervals: (Divide 1000 terminals into 5 groups, with 200 devices in each group. The terminals listen to each group once every 30 seconds).

[0050] 3. Upon waking, it enters a timed deep sleep state (automatically switching to synchronization mode after 30 seconds);

[0051] 4. Synchronization with AP: When the terminal wakes up, it will first synchronize with the AP to ensure that the communication status of both parties is synchronized, thereby ensuring the stability of data transmission.

[0052] 5. Access and Data Transmission / Reception: After synchronizing with the AP, the terminal will access the network and transmit and receive data. During data transmission, the terminal will remain awake to ensure stable data transmission.

[0053] 6. Re-entering Ultra-Low Power Wake-up Mode: After data transmission is complete, the terminal will re-enter Ultra-Low Power Wake-up Mode and wait for the next wake-up signal.

[0054] The specific workflow of the gateway is as follows:

[0055] 1. Deep sleep mode: The gateway will enter deep sleep mode when idle to minimize power consumption.

[0056] 2. Wake-up mode: When the gateway receives a data acquisition command, it will automatically enter wake-up mode from deep sleep mode and start sending wake-up signals to wake up the terminal devices.

[0057] 3. Continuously sending agreed-upon wake-up signals: The gateway will continuously send wake-up signals to ensure that all terminal devices can be woken up. The wake-up signal lasts for 2 minutes, after which the gateway will switch to synchronous protocol transmission mode.

[0058] 4. After sending is complete, switch to synchronous protocol transmission mode;

[0059] 5. Communicate with the terminal and complete data transmission and reception;

[0060] 6. After completing a round of communication, the gateway will re-enter deep sleep mode to save power.

[0061] This invention is applicable to high-capacity access: based on a synchronization protocol, it can connect more terminal devices.

[0062] This invention can save energy: by adopting an ultra-low power wake-up mode, the number of wake-ups of terminals and gateways is reduced while ensuring stable network transmission, thereby reducing energy consumption and providing longer usage time for devices. The gateway can also enter a low power mode when there is no service transmission.

[0063] This invention improves wake-up efficiency: After transmission is completed, the terminal enters an ultra-low power wake-up mode, waiting for a wake-up signal. Before entering the transmission state, the gateway wakes up the terminal in batches according to pre-agreed groups, thus improving wake-up efficiency.

Claims

1. An ultra-low power wake-up method for metering applications based on synchronization protocols, characterized in that, Includes the following steps: S1. The terminal is assigned wake-up information according to the protocol. S2. After a transmission is completed, the terminal automatically enters the ultra-low power wake-up mode. After entering this mode, it keeps listening for a period of time to obtain the wake-up information sent by the gateway. S3. After a round of transmission is completed, the gateway enters a deep sleep mode, waiting for the next round of data acquisition instructions; S4. After the gateway receives the data acquisition instruction, before it is ready to enter the transmission state, the gateway enters the wake-up mode from the deep sleep mode and wakes up the agreed terminals in batches for transmission. S5. For a group of terminals, the gateway continuously sends wake-up information for a duration not less than the interval between the terminals listening to the wake-up information sent by the gateway. After sending, the gateway switches to synchronous protocol transmission mode. S6. After receiving the wake-up message, the terminal will immediately enter the timed deep sleep mode and wake up after the timer expires. The terminal will enter the synchronization mode to ensure that the gateway is in the normal synchronization protocol transmission mode after waking up. S7. After completing the information transmission, the gateway and the terminal enter their respective deep sleep mode and ultra-low power wake-up mode.

2. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 1, characterized in that, The wake-up information in step S1 includes frequency point, wake-up symbol length, and wake-up address value.

3. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 1, characterized in that, If the wake-up message cannot be assigned to a single terminal, the terminals will be woken up in groups.

4. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 1, characterized in that, The terminal is woken up at any time when the gateway sends the wake-up message.

5. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 1, characterized in that, The terminal's workflow is as follows: The terminal enters ultra-low power wake-up mode and listens for the gateway's wake-up information at certain intervals. After waking up the terminal, it enters a timed deep sleep mode and wakes up again after the timer expires, switching to synchronization mode. After the terminal wakes up, it synchronizes with the AP; After the terminal completes synchronization with the AP, it accesses the network and sends and receives data. During data transmission, the terminal remains awake to ensure stable data transmission. After the data transmission is complete, the terminal will re-enter the ultra-low power wake-up mode and wait for the next wake-up message.

6. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 5, characterized in that, The interval for listening at certain intervals is X, where X is a time variable set according to the actual business scenario, ranging from 100ms to 60s.

7. The ultra-low power wake-up method for metering applications based on synchronization protocols according to claim 1, characterized in that, The gateway's workflow is as follows: The gateway enters deep sleep mode when idle; When the gateway receives a data collection command, it automatically enters wake-up mode from deep sleep mode and begins sending wake-up information to wake up the terminal device. The gateway continuously sends wake-up messages to ensure that all terminal devices can be woken up. After the wake-up message is sent, the gateway switches to synchronous protocol transmission mode; The gateway communicates with the terminal and completes data transmission and reception; After completing a round of communication, the gateway will re-enter deep sleep mode to save power.

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