Low-power-consumption camera based on Wi-Fi Halow communication

Abstract

The utility model relates to the field of cameras, and provides a low-power-consumption camera based on Wi-Fi Halow communication in order to realize low-power-consumption and long-distance data transmission of the camera, and the low-power-consumption camera adopts Wi-Fi Halow for data transmission, can realize monitoring data transmission in an outdoor kilometer-level distance, and greatly increases the communication distance. The normal power supply area control unit works in a low-power-consumption mode at ordinary times, and when data transmission needs to be carried out, after the normal power supply area control unit is awakened through a PIR sensor, a Wi-Fi Halow communication unit or an internal timer, a power supply is controlled to supply power to the controlled power supply area; after data transmission is completed, the system immediately enters a low-power-consumption mode and closes a power supply of a controlled power supply area to reduce system power consumption, so that the service life of a battery is prolonged to the maximum extent.

Description

Technical Field

[0001] This utility model relates to the field of cameras, specifically a low-power camera based on Wi-Fi Halow communication. Background Technology

[0002] Camera products have certain requirements for communication speed. Low-power communication technologies such as LoRa and Zigbee cannot meet the speed requirements. Traditional 2.4GHz or 5GHz Wi-Fi communication has a short range and cannot meet the requirements for long-distance data transmission. Cellular communication technology requires additional data charges. Utility Model Content

[0003] To achieve low power consumption and long-distance data transmission for cameras, this application provides a low-power camera based on Wi-Fi Halow communication.

[0004] The technical solution adopted by this utility model to solve the above problems is:

[0005] A low-power camera based on Wi-Fi Halow communication includes: a power supply, a normally powered area, and a controlled power supply area.

[0006] The constant power supply area includes a Wi-Fi Halow communication unit, a constant power supply area control unit, and a PIR sensor connected to the constant power supply area control unit. The Wi-Fi Halow communication unit is connected to the constant power supply area control unit.

[0007] The controlled power supply area includes a controlled power supply area main control unit and an image sensor unit connected to the controlled power supply area main control unit.

[0008] The Wi-Fi Halow communication unit and the control unit for the normally powered area are respectively connected to the main control unit for the controlled power supply area.

[0009] The power supply provides power to the constant power supply area. The control unit of the constant power supply area is normally in a low power consumption operation mode. After the control unit of the constant power supply area is woken up, the control power supply provides power to the controlled power supply area.

[0010] Furthermore, it also includes solar panels, which are connected to a power source.

[0011] Furthermore, the control unit for the constantly powered area is an MCU.

[0012] Furthermore, the MCU can be woken up via a PIR sensor, a Wi-Fi Halow communication unit, or an internal timer.

[0013] Furthermore, the Wi-Fi Halow communication unit operates in low-power mode when there is no data transmission, and enters normal operating mode when the MCU is woken up.

[0014] Furthermore, the feature is that the Wi-Fi Halow communication unit communicates with the Halow gateway through a relay node.

[0015] The advantages of this invention compared to existing technologies are as follows: Using Wi-Fi Halow for data transmission enables outdoor monitoring data transmission over distances of up to kilometers, significantly increasing communication range; the control unit for the normally powered area operates in low-power mode, and when data transmission is required, it is woken up via a PIR sensor, Wi-Fi Halow communication unit, or internal timer to control the power supply to the controlled area; after data transmission is completed, the system immediately enters low-power mode and shuts off the power to the controlled area to reduce system power consumption and thus maximize battery life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a low-power camera structure based on Wi-Fi Halow communication;

[0017] Figure 2 Flowchart for PIR interrupt wake-up for human activity detection;

[0018] Figure 3 Flowchart for remote data request interruption wake-up;

[0019] Figure 4 Flowchart for timer interrupt wake-up;

[0020] Figure 5 This is a schematic diagram of the terminal camera and the Halow gateway. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0022] like Figure 1 As shown, the low-power camera based on Wi-Fi Halow communication includes: a power supply, a normally powered area, and a controlled power supply area.

[0023] The constant power supply zone includes a Wi-Fi Halow communication unit, a constant power supply zone control unit, and a PIR sensor connected to the constant power supply zone control unit. In this embodiment, the constant power supply zone control unit uses an MCU, and all components in the constant power supply zone support uA-level low-power operation.

[0024] The controlled power supply area includes a controlled power supply area main control unit and an image sensor unit connected to the controlled power supply area main control unit. In this embodiment, the controlled power supply area main control unit is connected to the Wi-Fi Halow communication unit of the normally powered area via an SDIO interface, connected to the image sensor unit of the controlled power supply area via a MIPI interface, and connected to the MCU of the normally powered area via a serial UART.

[0025] The power supply provides power to the normally powered area. The control unit in the normally powered area is normally in a low-power operating mode. After being woken up, the control power supply provides power to the controlled area. The MCU usually operates in a low-power mode with a current of uA and can be woken up in the following three ways: the PIR sensor outputs an interrupt signal INT1; the Wi-Fi Halow communication unit outputs an interrupt signal INT2; or the MCU's built-in RTC timing unit generates a timing interrupt signal INT3.

[0026] Human activity detection PIR interrupt wake-up process as follows Figure 2 As shown, the system operates in low-power mode. When the PIR sensor detects continuous human activity, it outputs an interrupt signal INT1 to wake up the MCU running in low-power mode. The MCU outputs a power enable control signal, and the main control unit and image sensor unit in the controlled power supply area start up and power on in seconds. The system actively pushes an alarm video to the user side to remind the user. After the alarm video transmission is completed, the system enters low-power mode again.

[0027] The remote data request interruption wake-up process is as follows: Figure 3 As shown, the system operates in low-power mode. When the Wi-FiHalow communication unit receives a video transmission request from the remote user, the Wi-FiHalow communication unit is woken up and outputs an interrupt signal INT2 to wake up the MCU running in low-power mode. The MCU outputs a power-on control signal, and the main control unit and image sensor unit in the controlled power supply area start up and power on in seconds, allowing the remote user to view the real-time monitoring video. When the remote user exits the real-time video monitoring application, the system enters low-power mode again.

[0028] The timer interrupt wake-up process is as follows: Figure 4 As shown, the system operates in low-power mode. When the internal timer of the MCU overflows, an internal interrupt signal INT3 is generated to wake up the MCU running in low-power mode. The MCU outputs a power supply enable control signal, and the main control unit and image sensor unit in the controlled power supply area start up and power on in seconds. The system actively pushes timed video to the user side.

[0029] The terminal camera can be directly connected to the Halow gateway, or it can operate in relay mode, connecting to the Halow gateway through a relay station to extend the wireless monitoring data transmission distance, such as... Figure 5 As shown.

[0030] Furthermore, to facilitate charging the camera, this embodiment also includes a solar panel, which is connected to a power source.

Claims

1. A low-power camera based on Wi-Fi Halow communication, characterized in that, include: Power supply, normally supplied power supply area and controlled power supply area, The constant power supply area includes a Wi-Fi Halow communication unit, a constant power supply area control unit, and a PIR sensor connected to the constant power supply area control unit. The Wi-Fi Halow communication unit is connected to the constant power supply area control unit. The controlled power supply area includes a controlled power supply area main control unit and an image sensor unit connected to the controlled power supply area main control unit. The Wi-Fi Halow communication unit and the control unit for the normally powered area are respectively connected to the main control unit for the controlled power supply area. The power supply provides power to the constant power supply area. The control unit of the constant power supply area is normally in a low power consumption operation mode. After the control unit of the constant power supply area is woken up, the control power supply provides power to the controlled power supply area.

2. The low-power camera based on Wi-Fi Halow communication according to claim 1, characterized in that, It also includes solar panels, which are connected to a power source.

3. The low-power camera based on Wi-Fi Halow communication according to claim 1, characterized in that, The control unit for the constantly powered area is an MCU.

4. The low-power camera based on Wi-Fi Halow communication according to claim 3, characterized in that, The MCU can be woken up via a PIR sensor, a Wi-Fi Halow communication unit, or an internal timer.

5. The low-power camera based on Wi-Fi Halow communication according to claim 3, characterized in that, The Wi-FiHalow communication unit operates in low-power mode when there is no data transmission, and enters normal operating mode when the MCU is woken up.

6. The low-power camera based on Wi-Fi Halow communication according to any one of claims 1-5, characterized in that, The Wi-Fi Halow communication unit communicates with the Halow gateway via a relay node.

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