Security gateway and camera

Abstract

The embodiment of the utility model provides a security and protection gateway and a camera, and the security and protection gateway comprises a power supply module which is used for supplying power to the security and protection gateway through a power supply, supplying power to the security and protection gateway through a battery when the power supply is powered off, and generating a power supply state indication signal; the POE interface is used for connecting POE security and protection equipment; the POE power supply module is used for supplying power to POE security and protection equipment through a POE interface; the POE communication module is used for performing Ethernet communication with POE security and protection equipment through a POE interface; the serial communication module is used for carrying out serial communication with POE security and protection equipment through a POE interface; the control module is used for generating a communication mode control signal based on the power supply state indication signal; and the switching module is used for connecting the serial communication module or the POE communication module with the POE interface based on the communication mode control signal. According to the embodiment of the invention, uninterrupted security and protection monitoring can be realized in case of power failure and network disconnection, and the power consumption is relatively low.

Description

Technical Field

[0001] This application relates to the field of security technology, specifically to a security gateway and a camera. Background Technology

[0002] In related technologies, security devices such as cameras and sensors in a security system connect to remote devices such as servers and user equipment through a gateway. The gateway transmits monitoring data from the security devices to the remote devices and receives access requests from the remote devices. The gateway is powered by a power supply; when the power is lost, the gateway and some security devices stop working, causing monitoring to terminate. Utility Model Content

[0003] In view of the above problems, this application provides a security gateway and a camera to solve the above technical problems.

[0004] In a first aspect, embodiments of this application provide a security gateway, comprising: a power supply module connected to a power source and a battery, used to supply power to the security gateway via the power source, and to supply power to the security gateway via the battery when the power source is off, and to generate a power supply status indication signal, the power supply status including a power supply status and a battery supply status; a PoE interface (Power over Ethernet) used to connect to a PoE security device; a PoE power supply module connected to the power supply module and the PoE interface, used to supply power to the PoE security device via the PoE interface; a PoE communication module connected to the PoE interface, used to perform Ethernet communication with the PoE security device via the PoE interface; a serial communication module connected to the PoE interface, used to perform serial communication with the PoE security device via the PoE interface; a control module connected to a switching module and the power supply module, used to generate a communication mode control signal based on the power supply status indication signal; and a switching module connected between the PoE communication module, the serial communication module, and the PoE interface, used to connect the serial communication module or the PoE communication module to the PoE interface based on the communication mode control signal.

[0005] In some implementations, the first end of the switching module is connected to the transmit terminal of the PoE interface, the second end is connected to the transmit terminal of the PoE communication module, and the third end is connected to the serial communication module; the switching module selectively connects the first end to the second end or the third end.

[0006] In some implementations, when the power supply is in battery-powered mode, the communication mode control signal indicates serial communication mode, and the switching module connects the PoE interface to the serial communication module; when the power supply is in power-powered mode, the communication mode control signal indicates Ethernet communication mode, and the switching module connects the PoE interface to the PoE communication module.

[0007] In some implementations, the control module is configured to: generate a communication mode control signal corresponding to a communication mode switching request when a communication mode switching request is received from a POE security device via the POE interface; and / or generate a communication mode control signal corresponding to a communication mode switching instruction when a communication mode switching instruction is sent to the POE security device via the POE interface.

[0008] In some implementations, the control module is configured to: send a communication mode switching instruction to the POE security device via the POE interface when the power supply state is a power-on state, wherein the communication mode switching instruction is used to instruct the POE security device to enter the Ethernet communication mode; and send a communication mode switching instruction to the POE security device via the POE interface when the power supply state is a battery-powered state, wherein the communication mode switching instruction is used to instruct the POE security device to enter the serial communication mode.

[0009] In some implementations, the PoE power supply module stops supplying power to the PoE security device when the battery level falls below a preset power threshold.

[0010] In some implementations, the security gateway further includes a boost module connected to the battery for converting the battery voltage into a PoE power supply voltage; wherein the PoE power supply module is used to supply power to the PoE security device through the PoE interface based on the PoE power supply voltage.

[0011] In some implementations, the switching module achieves selective connection via relays; the control module is a processor.

[0012] In some embodiments, the security gateway further includes: a first wireless communication module for wirelessly communicating with a remote device, wherein the first wireless communication module includes a mobile cellular network communication module; a second wireless communication module for wirelessly communicating with a local security device, wherein the second wireless communication module includes one or more short-range communication units, and the local security device includes at least one of a wireless camera and an environmental monitoring sensor; the PoE security device includes a camera.

[0013] Secondly, embodiments of this application provide a camera, comprising: a PoE interface for connecting to a security gateway; a PoE power receiving module connected to the PoE interface for supplying power to the camera via power transmitted through the PoE interface; a PoE communication module connected to the PoE interface for Ethernet communication with the security gateway via the PoE interface; a serial communication module connected to the PoE interface for serial communication with the security gateway via the PoE interface; a monitoring sensor for detecting abnormal events in the monitored area and generating abnormal signals, wherein the abnormal signals indicate that the camera exits low-power mode; a control module connected to the monitoring sensor for sending a communication mode switching request to the security gateway based on the abnormal signals and generating a communication mode control signal corresponding to the communication mode switching request; and a switching module connected to the control module for selectively connecting the PoE interface to the serial communication module or the PoE communication module based on the communication mode control signal.

[0014] In some implementations, the control module is also configured to receive a communication mode switching instruction sent by the security gateway via the PoE interface, and generate a communication mode control signal corresponding to the communication mode switching instruction.

[0015] In some implementations, the camera further includes a power supply module for supplying power to the camera via a PoE power receiving module and for supplying power to the camera via a battery when the PoE power receiving module is de-energized.

[0016] The security gateway and camera provided in this application embodiment are powered by a battery when the power is off, enabling the security gateway to operate. A PoE power supply module powers the PoE security device through a PoE interface, enabling the PoE security device to operate as well. The security gateway and PoE security device can switch between serial communication and Ethernet communication, enabling data transmission during power outages and ensuring uninterrupted security monitoring even when power is lost. This also reduces power consumption when powered by battery, improving the battery life of both the security gateway and the PoE security device.

[0017] These or other aspects of this application will become more apparent in the following description of the embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the security gateway provided in an embodiment of this application is shown.

[0020] Figure 2 A schematic diagram of the structure of a camera provided in an embodiment of this application is shown. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the embodiments of this application, it should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0024] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] In the description of the embodiments of this application, the words "example" or "for example" are used to indicate exemplification, illustration, or description. Any embodiment or design described as "example" or "for example" in the embodiments of this application is not to be construed as being more preferred or having more advantages than another embodiment or design. The use of the words "example" or "for example" is intended to present relative concepts in a clear manner.

[0026] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C, then it could include A, B, C, A and B, A and C, B and C, or A and B and C.

[0027] It should be noted that in the embodiments of this application, "and / or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after it are in an "or" relationship.

[0028] It should be noted that in the embodiments of this application, "connection" can be understood as electrical connection. The connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components.

[0029] In the circuit structure provided by the embodiments of this application, nodes such as the first node and the second node do not represent actual existing components, but rather represent the junction points of related couplings in the circuit diagram. In other words, these nodes are equivalent to the junction points of related couplings in the circuit diagram.

[0030] This application provides a security gateway, such as... Figure 1As shown, the security gateway 100 may include a first wireless communication module 101, a second wireless communication module 102, and a power supply module 103. The first wireless communication module 101 is used for wireless communication with remote devices. In this embodiment, the remote devices may include user devices such as smartphones and tablets, or servers and cloud platforms. Servers and cloud platforms can store and manage security data. The first wireless communication module 101 may include a mobile cellular network communication module, which can perform mobile communication based on, but is not limited to, Global System for Mobile Communications (GSM), Universal Mobile Telecommunication System (UMTS), Long Term Evolution (LTE), Code Division Multiple Access-2000 (CDMA2000), Worldwide Interoperability for Microwave Access (WiMAX), 5G, and other communication protocols. The second wireless communication module 102 is used for wireless communication with local security devices. The second wireless communication module 102 may include one or more short-range communication units, which can perform short-range communication based on protocols such as Wi-Fi, Bluetooth, ZigBee, and Sub-GHz wireless communication. Local security devices may include, but are not limited to, smart door locks, smart doorbells, cameras, door and window sensors, human body sensors, human presence sensors, smoke sensors, gas sensors, water immersion sensors, and temperature and humidity sensors.

[0031] The security gateway 100 can be powered by a power source (e.g., AC power) or a battery. The power supply module 103 supplies power to the security gateway 100 via a power source and supplies power via a battery when the power source is off, generating a power supply status indication signal, where the power supply status includes a power supply status and a battery supply status. Specifically, when supplying power to the security gateway 100 via a power source, the power supply module 103 generates a power supply status indication signal indicating that the power supply status is power supply status; when supplying power to the security gateway 100 via a battery, it generates a power supply status indication signal indicating that the power supply status is battery supply status. In specific implementations, the battery can be a built-in battery of the security gateway 100 or an external mobile power supply; this application embodiment does not limit this. In some embodiments, the power supply module 103 can charge the battery when the power source is on, and further, stop charging when the battery is fully charged. The power supply module 103 can be a dedicated power switching chip or a power switching circuit composed of discrete components. In some specific implementations, the power supply module 103 may include a power detection circuit and a power switching circuit. The power supply detection circuit monitors the power supply voltage and outputs a signal to trigger switching when it falls below a threshold. The power switching circuit can use a MOSFET as a switch, controlled by the detection signal from the power supply detection circuit, to switch between power supply from the power source and the battery. The power supply module 103 may also include an energy storage capacitor to maintain power supply during switching.

[0032] In this embodiment, the power supply module 103 supplies power to the security gateway via a battery when the power is off, enabling the security gateway to be in working condition. It communicates wirelessly with remote devices via the first wireless communication module and with local security devices via the second wireless communication module, enabling communication between the remote devices and the local security devices. This allows for security data transmission even when the power is off, achieving uninterrupted security monitoring even when power and network outages occur.

[0033] In some embodiments, the local security device may also include a PoE security device. PoE is a technology that transmits both data and power over a standard Ethernet cable. It eliminates the need for separate power cabling when installing network devices, simplifying deployment and reducing costs. The PoE security device can be powered by the security gateway and communicates with it via Ethernet. PoE security devices may include, but are not limited to, PoE cameras, PoE smart access control systems, etc. Please refer to [link / reference]. Figure 1As shown, the security gateway 100 also includes a PoE power supply module 104 and a PoE communication module 105. The PoE power supply module 104 is connected to the power supply module 103 and is used to supply power to the PoE security device through the PoE interface 109. The PoE communication module 105 is used for Ethernet communication with the PoE security device through the PoE interface 109. The PoE interface 109 is used for connecting the PoE security device and can transmit power and communication signals. The security gateway 100 acts as a power sourcing equipment (PSE), and the PoE security device acts as a powered device (PD). The PoE power supply module supplies power to the PoE security device, enabling it to operate. The PoE communication module supplies power to the PoE security device, allowing communication between remote devices and the PoE security device. This enables data transmission of security data even during power outages, achieving uninterrupted security monitoring during power outages and network interruptions.

[0034] The security gateway 100 and the PoE security device communicate via the PoE communication module 105 for high-speed video data transmission. For example, in video surveillance, high-definition video streams are transmitted via Ethernet to a Network Video Recorder (NVR) or the cloud. The PoE communication module 105 has high power consumption; when the security gateway 100 is powered by a battery, the battery drains quickly. Therefore, in some specific embodiments, please refer to... Figure 1 As shown, the security gateway 100 also includes a serial communication module 106, a switching module 107, and a control module 108. The serial communication module 106 is used for serial communication with PoE security devices via a PoE interface 109. In specific implementations, the serial communication module 106 can use serial communication protocols such as RS485. The switching module 107 is used to selectively connect the PoE interface 109 to either the serial communication module 106 or the PoE communication module 105. The control module 108 is connected to the switching module 107 and is used to control the switching module 107. Based on the control signals from the control module 108, the switching module 107 connects the PoE interface 109 to either the serial communication module 106 or the PoE communication module 105. This reduces communication power consumption. In a typical implementation, the control module 108 is connected to the power supply module 103. The control module 108 receives the power supply status indication signal output by the power supply module 103 and generates a communication mode control signal based on the power supply status indication signal. The switching module 107 connects the PoE interface 109 to the serial communication module 106 or the PoE communication module 105 based on the communication mode control signal output by the control module 108. In a specific implementation, the switching module 107 can be a relay to achieve selective connection. The control module 108 can be a processor, such as a microcontroller or a central processing unit.

[0035] Please continue reading. Figure 1 As shown, in some specific embodiments, when the power supply status indicator signal indicates that the power supply status is battery powered, the control module 108 can generate a communication mode control signal indicating a serial communication mode. The switching module 107 connects the PoE interface 109 to the serial communication module 106 based on this communication mode control signal to perform serial communication with the PoE security device. Alternatively, when the power supply status indicator signal indicates that the power supply status is power supplied by a power source, the control module 108 can generate a communication mode control signal indicating an Ethernet communication mode. The switching module 107 connects the PoE interface 109 to the PoE communication module 105 based on this communication mode control signal to perform Ethernet communication with the PoE security device.

[0036] Please continue reading. Figure 1 As shown, in some specific embodiments, the control module 108 can generate a communication mode control signal corresponding to the communication mode switching request when it receives a communication mode switching request sent by the POE security device through the POE interface 109. Specifically, if the communication mode switching request indicates Ethernet communication, a communication mode control signal indicating Ethernet communication is generated, and the switching module 107 connects the POE interface 109 to the POE communication module 105 based on the communication mode control signal to perform Ethernet communication with the POE security device. If the communication mode switching request indicates serial communication, a communication mode control signal indicating serial communication is generated, and the switching module 107 connects the POE interface 109 to the serial communication module 106 based on the communication mode control signal to perform serial communication with the POE security device. Specifically, when a PoE security device determines that high-speed data transmission is required, it can send a communication mode switching request to the security gateway 100. In response to receiving the communication mode switching request, the control module 108 generates a communication mode control signal indicating Ethernet communication. The switching module 107 connects the PoE interface 109 to the PoE communication module 105 to perform high-speed data transmission through the PoE communication module 105.

[0037] Please continue reading. Figure 1As shown, in some specific embodiments, when the POE interface 109 sends a communication mode switching instruction to the POE security device, the control module 108 can generate a communication mode control signal corresponding to the communication mode switching instruction. The control switching module 107 then connects the POE interface 109 to the POE communication module 105 or the serial communication module 106 based on this communication mode control signal. In a specific implementation, the control module 108 is used to: send a communication mode switching instruction to the POE security device through the POE interface 109 when the power supply state is battery powered, wherein the communication mode switching instruction is used to instruct the POE security device to enter Ethernet communication mode; and send a communication mode switching instruction to the POE security device through the POE interface 109 when the power supply state is power-on, wherein the communication mode switching instruction is used to instruct the POE security device to enter serial communication mode. In battery powered state, the security gateway 100 can request high-speed data from the POE security device. At this time, the control module 108 can send a communication mode switching request to the PoE security device. This communication mode switching instruction is used to instruct the PoE security device to enter Ethernet communication mode. The switching module 107 connects the PoE interface 109 to the PoE communication module 105. For example, when a user remotely views the camera's real-time video stream through a user device such as a smartphone, the PoE interface 109 is connected to the PoE communication module 105, and the real-time video stream is transmitted through the PoE communication module 105.

[0038] In a typical implementation, when powered by a power source, the control module 108 controls the switching module 107 via a communication mode control signal to connect the PoE interface 109 to the PoE communication module 105 for Ethernet communication with the PoE security device. At this time, the security gateway 100 and the PoE security device transmit data via Ethernet. In this case, real-time video streams, alarm information, etc., can be transmitted through the PoE communication module 105. When the power supply module 103 detects a power outage, it supplies power to the security gateway 100 via a battery. When powered by a battery, the control module 108 controls the switching module 107 via a communication mode control signal to connect the PoE interface 109 to the serial communication module 106 for serial communication with the PoE security device. If the control module 108 receives a communication mode switching request from the PoE security device, it controls the switching module 107 via a communication mode control signal corresponding to the communication mode switching request to connect the PoE interface 109 to the PoE communication module 105 for Ethernet communication with the PoE security device. During battery power operation, the device operates in serial communication mode. If the security gateway 100 needs to acquire real-time video streams, the control module 108 can send a communication mode switching instruction to the PoE security device, indicating that it should switch to Ethernet communication mode. The control module 107 then connects the PoE interface 109 to the PoE communication module 105 via a communication mode control signal corresponding to this instruction, enabling Ethernet communication with the PoE security device. Thus, serial communication is used to reduce power consumption when powered by battery, and Ethernet communication is switched when high-speed data transmission is required, achieving high-speed data transmission. Furthermore, after data transmission is complete, the control module 108 can send a communication mode switching instruction to the PoE security device, indicating that it should switch to serial communication mode, and the control module 107 then switches the PoE interface 109 to connect to the serial communication module 106 via a communication mode control signal corresponding to this instruction.

[0039] The PoE interface 109 includes communication terminals and power transmission terminals. The power transmission terminals connect to the PoE power supply module 104 to transmit power to the powered device. The communication terminals connect to the PoE communication module 105 to transmit communication signals, and the communication terminals include transmit and receive terminals. Please refer to [link to relevant documentation]. Figure 1As shown, the first end of the switching module 107 is connected to the transmitting terminal of the PoE interface 109, the second end is connected to the transmitting terminal of the PoE communication module 105, and the third end is connected to the serial communication module 106. The switching module 107 can selectively connect the first end to the second or third end to transmit serial communication signals or Ethernet communication signals through the PoE interface 109. In a specific implementation, the switching module 107 may include a relay. In a specific implementation, the serial communication module 106 may employ half-duplex communication, operating in a receiving state when not transmitting data.

[0040] In this embodiment, the battery can be a rechargeable battery or a power bank. Battery voltage is generally low, while PoE supply voltage is generally high; therefore, please refer to [link to relevant documentation]. Figure 1 As shown, the security gateway 100 also includes a boost module 110, which is connected to the battery to convert the battery voltage into a PoE power supply voltage. The boost module 110 can be connected between the battery and the power supply module 103, or between the power supply module 103 and the PoE power supply module 104.

[0041] In security systems, besides PoE security devices, one or more other security devices are typically connected, such as wireless cameras and various environmental monitoring sensors. PoE power consumption is relatively high, while battery power is limited. If the battery is depleted, all security devices will be unable to operate. Therefore, in some implementations, the PoE power supply module 104 can stop supplying power when the battery level falls below a preset threshold. For example, when the battery level drops below 20%, the PoE power supply module 104 stops supplying power to the PoE security devices. At this time, the battery can supply power to other modules of the security gateway 100, enabling the wireless cameras, various environmental monitoring sensors, and other security devices to communicate with the security gateway 100 and transmit data.

[0042] In some specific embodiments, the security gateway 100 may further include a storage module. The storage module can store security data, such as video data collected by cameras and sensor data collected by various environmental monitoring sensors. In some implementations, in battery-powered mode, the security gateway 100 can request high-speed data from the PoE security device. At this time, the control module 108 can send a communication mode switching request to the PoE security device, which instructs the PoE security device to enter Ethernet communication mode. The switching module 107 connects the PoE interface 109 to the PoE communication module 105. The storage module can store the acquired video data.

[0043] In some specific implementations, the PoE communication module 105, control module 108, etc., can be integrated into a chip such as a System on Chip (SoC). This chip can be, but is not limited to, an SoC chip or a System in Package (SIP) chip.

[0044] This application also provides a camera that can be connected to the aforementioned security gateway. For example... Figure 2 As shown, the camera 300 includes a PoE interface 301, a PoE power receiving module 302, a PoE communication module 303, a serial communication module 304, a switching module 305, a monitoring sensor 306, and a control module 307. The PoE interface 301 is connected to the security gateway via a network cable and is used to transmit power and communication signals. The PoE power receiving module 302 is connected to the PoE interface 301 and is used to supply power to the camera 300 through the power transmitted via the PoE interface 301. The PoE communication module 303 is connected to the PoE interface 301 and is used for Ethernet communication with the security gateway via the PoE interface 301. The serial communication module 304 is connected to the PoE interface 301 and is used for serial communication with the security gateway via the PoE interface 301. The switching module 305 is used to selectively connect the PoE interface 301 to either the serial communication module 304 or the PoE communication module 303. When the PoE interface 301 is connected to the PoE communication module 303, the camera 300 can communicate with the security gateway via Ethernet through the PoE communication module 303. When the PoE interface 301 is connected to the serial communication module 304, the camera 300 can communicate with the security gateway via serial communication through the PoE communication module 303.

[0045] In this embodiment, the monitoring sensor 306 is used to detect abnormal events in the monitored area and generate an abnormal signal, wherein the abnormal signal indicates that the camera exits the low-power mode. The control module 307 is connected to the monitoring sensor 306 and is used to send a communication mode switching request to the security gateway based on the abnormal signal output by the monitoring sensor 306, and generate a communication mode control signal corresponding to the communication mode switching request. The switching module 305 switches the PoE interface 301 to connect with either the PoE communication module 303 or the serial communication module 304 based on the communication mode control signal output by the control module 307. The camera 300 can operate in low-power mode by default. In low-power mode, the PoE interface 301 is connected to the serial communication module 304, and the camera 300 communicates serially with the security gateway through the serial communication module 304. In low-power mode, the monitoring sensor 306 detects abnormal events in the monitored area and generates an abnormal signal. When the monitoring sensor 306 detects an abnormal event, the camera 300 switches from low-power mode to video transmission mode, connects the PoE interface 301 to the PoE communication module 303, and sends video data to the security gateway. It also sends a switching request to the security gateway to cause the gateway to switch to Ethernet communication.

[0046] In a specific implementation, the monitoring sensor 306 can be a human body sensor, which can generate an abnormal signal when it detects human movement within the monitoring area, triggering the camera 300 to record video and transmit a real-time video stream. Alternatively, the monitoring sensor 306 can be a human presence sensor, which can generate an abnormal signal when it detects the presence of a human body within the monitoring area, triggering the camera 300 to record video and transmit a real-time video stream. Finally, the monitoring sensor 306 can be a sound detection sensor, which can generate an abnormal signal when it detects sound levels exceeding a preset decibel level, triggering the camera 300 to record video and transmit a real-time video stream.

[0047] In some specific embodiments, the camera 300 can also receive a communication mode switching instruction sent by the security gateway through the serial communication module 304, and generate a communication mode control signal corresponding to the communication mode switching instruction. Specifically, if the communication mode switching instruction sent by the security gateway indicates entering Ethernet communication mode, the control module 307, in response to receiving the communication mode switching instruction, generates a communication mode control signal indicating entering Ethernet communication mode, and the switching module 305 switches the PoE interface 301 to connect with the PoE communication module 303 based on the communication mode control signal. If the communication mode switching instruction sent by the security gateway indicates entering serial communication mode, the control module 307, in response to receiving the communication mode switching instruction, generates a communication mode control signal indicating entering serial communication mode, and the switching module 305 switches the PoE interface 301 to connect with the serial communication module 304 based on the communication mode control signal. The implementation method of the security gateway sending the communication mode switching instruction can be found in the foregoing description of this specification, and will not be repeated here.

[0048] In some implementations, such as Figure 2 As shown, the camera 300 may also include a power supply module 308, which is used to supply power to the camera 300 through the POE power receiving module 302, and to supply power to the camera 300 through a battery when the POE power receiving module 302 is powered off.

[0049] This application also provides a security system, including a security gateway and one or more local security devices. The security gateway can be as follows: Figure 1 The security gateway 100 shown. Local security devices may include, for example, Figure 2 The camera 300 shown uses PoE power supply and communication. Local security devices may include, but are not limited to, smart locks, smart doorbells, cameras, door and window sensors, human body sensors, human presence sensors, smoke sensors, gas sensors, water immersion sensors, temperature and humidity sensors, etc. These security devices can be battery powered and can communicate wirelessly with the security gateway. These security devices can also use PoE power supply and communication.

[0050] The security gateway and camera provided in this application embodiment are powered by a battery when the power is off, enabling the security gateway to be in working state. They communicate wirelessly with remote devices via a first wireless communication module and with local security devices via a second wireless communication module, allowing communication between the remote and local security devices. A PoE power supply module powers the PoE security device, enabling it to be in working state. A PoE communication module powers the PoE security device, enabling communication between the remote and PoE security devices. This allows for security data transmission even when the power is off, achieving uninterrupted security monitoring during power outages and network interruptions.

[0051] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although this application has disclosed preferred embodiments as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A security gateway, characterized in that, include: A power supply module, connected to a power source and a battery, is used to supply power to the security gateway through the power source, supply power to the security gateway through the battery when the power source is de-energized, and generate a power supply status indication signal, wherein the power supply status includes a power supply status and a battery supply status. The PoE interface is used to connect PoE security devices; A PoE power supply module, connected to the power supply module and the PoE interface, is used to supply power to the PoE security device through the PoE interface; A PoE communication module, connected to the PoE interface, is used to communicate with the PoE security device via Ethernet through the PoE interface; A serial communication module, connected to the PoE interface, is used to perform serial communication with the PoE security device through the PoE interface; A control module, connected to the switching module and the power supply module, is used to generate a communication mode control signal based on the power supply status indication signal; The switching module is connected between the POE communication module, the serial communication module and the POE interface, and is used to connect the serial communication module or the POE communication module to the POE interface based on the communication mode control signal.

2. The security gateway as described in claim 1, characterized in that, The first end of the switching module is connected to the transmitting terminal of the PoE interface, the second end is connected to the transmitting terminal of the PoE communication module, and the third end is connected to the serial communication module; the switching module selectively connects the first end to the second end or the third end.

3. The security gateway as described in claim 1, characterized in that, When the power supply state is battery powered, the communication mode control signal indicates serial communication mode, and the switching module connects the POE interface to the serial communication module. When the power supply state is the power supply state, the communication mode control signal indicates the Ethernet communication mode, and the switching module connects the PoE interface to the PoE communication module.

4. The security gateway as described in claim 3, characterized in that, The control module is used for: Upon receiving a communication mode switching request from the POE security device via the POE interface, a communication mode control signal corresponding to the communication mode switching request is generated; and / or When a communication mode switching instruction is sent to the POE security device through the POE interface, a communication mode control signal corresponding to the communication mode switching instruction is generated.

5. The security gateway as described in claim 4, characterized in that, The control module is used for: When the power supply state is the power supply state, the communication mode switching instruction is sent to the POE security device through the POE interface, wherein the communication mode switching instruction is used to instruct the POE security device to enter the Ethernet communication mode; When the power supply state is the battery-powered state, the communication mode switching instruction is sent to the POE security device through the POE interface, wherein the communication mode switching instruction is used to instruct the POE security device to enter the serial communication mode.

6. The security gateway as described in claim 1, characterized in that, The PoE power supply module stops supplying power to the PoE security device when the battery level is lower than a preset power threshold.

7. The security gateway as described in claim 1, characterized in that, Also includes: A boost module, connected to the battery, is used to convert the battery voltage into a PoE power supply voltage; The POE power supply module is used to supply power to the POE security device through the POE interface based on the POE power supply voltage.

8. The security gateway as described in claim 1 or 2, characterized in that, The switching module achieves selective connection through relays; the control module is a processor.

9. The security gateway as described in any one of claims 1 to 7, characterized in that, Also includes: A first wireless communication module is used for wireless communication with a remote device, wherein the first wireless communication module includes a mobile cellular network communication module; The second wireless communication module is used for wireless communication with local security devices. The second wireless communication module includes one or more short-range communication units. The local security devices include at least one of a wireless camera and an environmental monitoring sensor. The PoE security devices include a camera.

10. A camera, characterized in that, include: The PoE interface is used to connect to a security gateway; A POE power receiving module, connected to the POE interface, is used to supply power to the camera through the power transmitted via the POE interface; A PoE communication module, connected to the PoE interface, is used to communicate with the security gateway via Ethernet through the PoE interface; A serial communication module, connected to the PoE interface, is used to perform serial communication with the security gateway through the PoE interface; A monitoring sensor is used to detect abnormal events in the monitored area and generate an abnormal signal, wherein the abnormal signal indicates that the camera exits the low-power mode; The control module, connected to the monitoring sensor, is used to send a communication mode switching request to the security gateway based on the abnormal signal, and generate a communication mode control signal corresponding to the communication mode switching request; A switching module, connected to the control module, is used to selectively connect the PoE interface to the serial communication module or the PoE communication module based on the communication mode control signal.

11. The camera as claimed in claim 10, characterized in that, The control module is also configured to receive a communication mode switching instruction sent by the security gateway through the POE interface, and generate a communication mode control signal corresponding to the communication mode switching instruction.

12. The camera as described in claim 10 or 11, characterized in that, Also includes: The power supply module is used to supply power to the camera through the POE power receiving module, and to supply power to the camera through a battery when the POE power receiving module is de-energized.

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