Socket integrating intelligent charging and fire monitoring

Abstract

The invention discloses a socket integrating intelligent charging and fire monitoring, the socket is provided with a wire inlet port, a network port and a monitoring module, the wire inlet port is used for connecting with an AC end, and the network port is used for communicating with an external terminal; the monitoring module is provided with a master controller, an isolation power supply, a channel circuit and a communication circuit, the communication circuit is electrically connected with the network port, the isolation power supply and the channel circuit are electrically connected with the wire inlet port, the monitoring module is electrically connected with the sensor, the sensor is used for smoke identification and flame identification, and the sensor is arranged on the socket; and the channel circuit is electrically connected with the wire inlet port and the power supply port of the socket, receives a control signal from the main control or communication circuit and executes on-off switching between the wire inlet port and the power supply port of the socket. Monitoring of charging of the electric two-wheeled vehicle by the socket is realized, connection with the mains supply end can be cut off with the highest priority, and the problem that a traditional charging pile or a scanning charger is not powered off when the billing settlement time is not up is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent sockets, and in particular to a socket integrating intelligent charging and fire monitoring. Background Art

[0002] Existing public charging piles for electric two-wheeled vehicles provide a public socket for users. Users use their own chargers to connect to the public socket for charging. The public socket requires scanning a code to pay before use (the fee is calculated by the hour). The charging pile or public socket controls the charging time through its own control module. The public socket will only cut off the power supply when the charging time of the online charging order is reached.

[0003] If the user cancels the charging before the order is completed, or an abnormal situation occurs during charging, the public socket itself cannot provide power-off protection. For example: after the user takes the vehicle away, the charging pile will continue to perform the billing charging of the current order, and the public socket will still be charged, which poses certain safety hazards and liability disputes; if the charger brought by the user has quality problems and causes overheating and fire, it will not necessarily cause corresponding voltage and current abnormalities. In the normal billing charging mode, the feedback end of the charging pile cannot detect abnormal grid fluctuations (such as short circuit), and it will not cut off the power supply, so there are also safety hazards.

[0004] Due to the large number of electric two-wheelers currently in use, the complex charging scenarios and uneven quality of chargers, it is easy to cause large property losses and casualties when dangerous situations occur. In addition, the existing open-air charging booths mainly rely on cameras for visual recognition to determine whether there is a dangerous situation; in some semi-open-air or indoor scenarios, corresponding fire detectors (smoke / flame sensors) will be deployed on the ceiling, and the scene deployment cost is high. Since it is for the entire scene, the monitoring accuracy of a single public socket is low, and its linkage with the public socket is weak (in different hardware facilities, it is linked through a third-party plug-in, and if there is an abnormality on the connection line end, it will cause the linkage to fail). Especially when the scene monitoring solution and the charging pile solution are not provided by the same manufacturer, linkage abnormalities are more likely to occur.

[0005] Therefore, there is an urgent need for a socket with integrated intelligent charging and fire monitoring that can solve one or more of the above problems. Summary of the invention

[0006] In order to solve one or more problems existing in the prior art, the present invention provides a socket integrating intelligent charging and fire monitoring. The technical solution adopted by the present invention to solve the above problems is: the socket is provided with an incoming line port, a network port and a monitoring module, the incoming line port is used to connect to the AC end, and the network port is used to communicate with an external terminal;

[0007] The monitoring module is provided with a main control, an isolated power supply, a channel circuit, and a communication circuit. The communication circuit is electrically connected to the network port, the isolated power supply and the channel circuit are electrically connected to the incoming line port, the monitoring module is electrically connected to a sensor, the sensor is used for smoke recognition and / or flame recognition, and the sensor is arranged on the socket;

[0008] The channel circuit is electrically connected to the incoming port and the power supply port of the socket. The channel circuit receives a control signal from the main control or the communication circuit and performs on-off switching between the incoming port and the power supply port of the socket.

[0009] In some embodiments, the communication circuit is provided with an antenna and provides wireless communication functionality.

[0010] In some embodiments, the channel circuit includes: a relay, a first contact of the relay is connected to the live wire of the incoming port, a second contact of the relay is electrically connected to the power supply port of the socket, a first end of the coil of the relay is connected to the low-voltage DC power supply end provided by the isolated power supply, a first diode is connected in parallel at both ends of the coil, a cathode end of the first diode is electrically connected to the low-voltage DC power supply end, a second end of the coil is electrically connected to the collector of a transistor, a first resistor is connected in parallel to the emitter and base of the transistor, the emitter of the transistor is grounded, the base of the transistor receives a control signal from the main control or the communication circuit, and the coil turns on or off the connection between the first contact and the second contact when working.

[0011] Furthermore, the number of the channel circuits is consistent with the number of power supply ports of the socket.

[0012] Furthermore, the base of the transistor in the channel circuit receives a control signal from the communication circuit; and the base of the transistor in the channel circuit is connected in series with a pull-down resistor.

[0013] In some embodiments, the isolated power supply is a flyback isolated power supply.

[0014] In some embodiments, the sensor includes: an image sensor, and the image sensor is used for smoke recognition, flame recognition and acquiring scene images.

[0015] Furthermore, the sensor includes: a flame sensor, and the communication circuit is electrically connected to the flame sensor via a signal amplification circuit.

[0016] In some embodiments, the communication circuit is electrically connected to a charging metering power detection circuit, and the charging metering power detection circuit is electrically connected to a neutral line input terminal, a neutral line output terminal, and a live line input terminal, respectively, and the main control performs battery charging state detection, overcharge protection, short circuit protection, and overload protection through the charging metering power detection circuit;

[0017] When the charging metering power detection circuit detects that the charging power is abnormally large, the channel circuit performs a power cut-off action;

[0018] When the charging metering power detection circuit detects that the charging power is abnormally low, the channel circuit performs a power cut-off action.

[0019] Furthermore, the charging metering power detection circuit is electrically connected to the communication circuit via an optocoupler isolation circuit, a step-down circuit supplies power to the charging metering power detection circuit, and the step-down circuit is electrically connected to the isolation circuit.

[0020] In some embodiments, when the sensor is working: if a fire hazard is triggered, the channel circuit executes a power cut-off action, the communication circuit transmits the working status data of the current device to the external terminal as required, and the communication circuit receives control data and configuration data from the external terminal.

[0021] The technical effect achieved by the present invention is: by integrating the above-mentioned monitoring module in the socket, isolating the mains power by using an isolated power supply and switching the mains power end and the charging port of the electric two-wheeled vehicle by using a channel circuit, and configuring an image sensor and an optional flame sensor, the socket itself can monitor the charging of the electric two-wheeled vehicle. When the sensor detects an abnormality, the channel circuit can cut off the connection with the mains power end with the highest priority, avoiding the problem of traditional charging piles or scanning chargers not being powered on before the billing settlement time, and avoiding the problem that the channel circuit fails to obtain the control signal output by the monitoring end and the control end when the external line is abnormal;

[0022] The battery charging state detection, overcharge protection, short circuit protection and overload protection are performed through the charging metering power detection circuit, and the power supply port of the socket is disconnected in advance when the battery charging power is abnormal or full;

[0023] By using an isolation circuit to power the monitoring module, the influence of fluctuations in the mains electricity can be avoided, thus ensuring the reliability of the system in emergency situations. The main control can be used to provide online order billing functions, and can also be used in conjunction with the billing module of the charging pile. The scene matching is simple and convenient, and can monitor the socket independently of the monitoring facilities of the scene (indoor or outdoor), and can independently provide online image monitoring and data reporting functions. The modular use can replace the monitoring system of the traditional charging kiosk and is lower in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front schematic diagram of the socket of the present invention;

[0025] Figure 2 is a three-dimensional schematic diagram of the socket of the present invention;

[0026] Figure 3 is a schematic diagram of a channel circuit of the present invention;

[0027] Figure 4 is a schematic diagram of the isolated power supply of the present invention;

[0028] Figure 5 It is a schematic diagram of the main control and communication circuit of the present invention;

[0029] Figure 6 is a schematic diagram of an amplifier circuit of the present invention;

[0030] Figure 7 It is the IC circuit principle diagram of the charging metering power detection circuit of the present invention;

[0031] Figure 8 It is a schematic diagram of a step-down circuit of a charging metering power detection circuit of the present invention;

[0032] Fig. 9 It is a schematic diagram of the RX-TX end of the optocoupler isolation circuit of the charging metering power detection circuit of the present invention;

[0033] Fig.10 It is a schematic diagram of the RX1-TX1 end of the optocoupler isolation circuit of the charging metering power detection circuit of the present invention.

[0034] [Reference Signs]

[0035] exist Figure 1 , Figure 2 Middle: 10, socket 100, sensor 101, flame sensor 102, network port 103, incoming line port;

[0036] exist Figure 5 Middle: 1. Main control 2. Communication chip 3. Image sensor connection port 4. Network connection port 5. Switch. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from this description, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] The present invention discloses a socket integrating intelligent charging and fire monitoring, Figure 1-Figure 5 As shown, the socket 10 is provided with an incoming line port 103, a network port 102 and a monitoring module, the incoming line port 103 is used to connect to the AC end, and the network port 102 is used to communicate with an external terminal;

[0039] The monitoring module is provided with a main control 1, an isolated power supply, a channel circuit, and a communication circuit 2. The communication circuit 2 is electrically connected to the network port, the isolated power supply and the channel circuit are electrically connected to the incoming line port, and the monitoring module is electrically connected to a sensor 100. The sensor 100 is used for smoke recognition and / or flame recognition, and the sensor 100 is arranged on the socket 10; the sensor 100 includes any one or both of an image sensor and a flame sensor;

[0040] For example, the monitoring module is electrically connected to the image sensor, and the monitoring module is electrically connected to the flame sensor 101, wherein the image sensor is used for smoke recognition, flame recognition and obtaining scene images (shooting or recording images), and the flame sensor is an optional sensor and is used for flame recognition;

[0041] The channel circuit is electrically connected to the incoming port and the power supply port of the socket. The channel circuit receives a control signal from the main control or the communication circuit and performs on-off switching between the incoming port and the power supply port of the socket.

[0042] It should be noted that, combined with Figure 5 As shown, the main control 1 is an MCU, the communication circuit 2 is a communication chip and a corresponding peripheral circuit, the communication circuit 2 is connected to an antenna and provides a wireless communication function; the main control 1 is provided with an image sensor connection port 3 and is used to connect to the image sensor, the main control performs smoke and flame recognition through the image sensor and thus realizes danger recognition, the communication circuit is provided with a network connection port 4 and is used to connect to the network port 102 on the socket 10, and the communication circuit 2 can be connected to a physical switch 5.

[0043] Specifically, combined Figure 3As shown, the channel circuit includes: a relay K1, a first contact of the relay K1 is electrically connected to the live wire of the incoming port, a second contact of the relay K1 is electrically connected to the power supply port of the socket, a first end of the coil of the relay is connected to the low-voltage DC power supply end provided by the isolated power supply, two ends of the coil are connected in parallel with a first diode D11, a cathode end of the first diode D11 is electrically connected to the low-voltage DC power supply end, a second end of the coil is electrically connected to the collector of the transistor Q4, an emitter and a base of the transistor Q4 are connected in parallel with a first resistor R31, the emitter of the transistor Q4 is grounded, the base of the transistor Q4 receives a control signal from the main control or the communication circuit, the base of the transistor Q4 is connected in series with a pull-down resistor R29, and the coil turns on or off the connection between the first contact and the second contact when working.

[0044] Furthermore, the number of the channel circuits is consistent with the number of the power supply ports of the socket, so as to control each power supply port on the socket in a one-to-one correspondence;

[0045] Combination Figure 5 , Figure 6 As shown, in the channel circuit, the base of the transistor Q4 receives the control signal (M1 port) from the communication circuit, and the IO-FIM port of the communication circuit is electrically connected to the flame sensor J3 through a signal amplification circuit. The purpose is to improve the priority and reliability of the circuit on-off switching implemented by the monitoring module.

[0046] Specifically, combined Figure 4 As shown, the isolated power supply is a flyback isolated power supply, which includes: a rectifier bridge electrically connected to the incoming line port, a power management circuit, a transformer and a flyback circuit. The isolated power supply provides DC-5V power supply.

[0047] Specifically, combined Figure 7-Figure 10 As shown, the communication circuit is electrically connected to the charging metering power detection circuit, and the charging metering power detection circuit is electrically connected to the neutral line input terminal N, the neutral line output terminal N0 and the live line input terminal L respectively, and the main control performs battery charging state detection, overcharge protection, short circuit protection and overload protection through the charging metering power detection circuit;

[0048] When the charging metering power detection circuit detects that the charging power is abnormally large (abnormal high current occurs during charging), the main control controls the channel circuit to execute a power cut-off action to prevent the circuit from being burned due to high current;

[0049] When the charging metering power detection circuit detects that the charging power is abnormally low (the battery is already in a saturated state), the main control controls the channel circuit to perform a power cut-off action to avoid overcharging of the battery;

[0050] Again, if Figure 7 , Fig. 9 , Fig.10 As shown, the charging metering power detection circuit is electrically connected to the communication circuit through an optocoupler isolation circuit, and the power chip U3 implements isolation from the RX to TX end through optocouplers U4 and U5, thereby protecting the main control;

[0051] Combination Figure 4 , Figure 7 , Figure 8 The step-down circuit supplies power to the charging metering power detection circuit, and the step-down circuit is electrically connected to the Vbus terminal of the isolation circuit.

[0052] It should be noted that the charging metering power detection circuit can be implemented in a variety of ways. Figure 7-Figure 10 The schematic diagram shown is only one embodiment.

[0053] Specifically, when the sensor is working: if a fire hazard is triggered, the channel circuit executes a power cut-off action, the communication circuit transmits the working status data of the current device to the external terminal as required, and the communication circuit receives control data and configuration data from the external terminal.

[0054] In summary, the present application integrates the above-mentioned monitoring module in the socket, uses an isolated power supply to isolate the mains power, uses a channel circuit to switch the mains power end and the electric two-wheeled vehicle charging port, and configures an image sensor and an optional flame sensor to achieve the socket's own monitoring of the charging of the electric two-wheeled vehicle. When the sensor detects an abnormality, the channel circuit can cut off the connection with the mains power end with the highest priority, avoiding the problem of traditional charging piles or scanning chargers not being powered on before the billing settlement time, and avoiding the problem of the channel circuit failing to obtain the control signal output by the monitoring end and the control end when the external line is abnormal;

[0055] The battery charging state detection, overcharge protection, short circuit protection and overload protection are performed through the charging metering power detection circuit, and the power supply port of the socket is disconnected in advance when the battery charging power is abnormal or full;

[0056] By using an isolation circuit to power the monitoring module, the influence of fluctuations in the mains electricity can be avoided, thus ensuring the reliability of the system in emergency situations. The main control can be used to provide online order billing functions, and can also be used in conjunction with the billing module of the charging pile. The scene matching is simple and convenient, and can monitor the socket independently of the monitoring facilities of the scene (indoor or outdoor), and can independently provide online image monitoring and data reporting functions. The modular use can replace the monitoring system of the traditional charging kiosk and is lower in cost.

[0057] The above-described embodiments only express one or more implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A socket integrating intelligent charging and fire monitoring, characterized in that: The socket is provided with an incoming line port, a network port and a monitoring module, the incoming line port is used to connect to the AC end, and the network port is used to communicate with an external terminal; The monitoring module is provided with a main control, an isolated power supply, a channel circuit, and a communication circuit. The communication circuit is electrically connected to the network port, the isolated power supply and the channel circuit are electrically connected to the incoming line port, the monitoring module is electrically connected to a sensor, the sensor is used for smoke recognition and / or flame recognition, and the sensor is arranged on the socket; The channel circuit is electrically connected to the incoming port and the power supply port of the socket. The channel circuit receives a control signal from the main control or the communication circuit and performs on-off switching between the incoming port and the power supply port of the socket.

2. The socket with integrated intelligent charging and fire monitoring according to claim 1, characterized in that: The communication circuit is provided with an antenna and provides a wireless communication function.

3. The socket with integrated intelligent charging and fire monitoring according to claim 1, characterized in that: The channel circuit includes: a relay, a first contact of the relay is connected to the live wire of the incoming port, a second contact of the relay is electrically connected to the power supply port of the socket, a first end of the coil of the relay is connected to the low-voltage DC power supply end provided by the isolated power supply, a first diode is connected in parallel to both ends of the coil, a cathode end of the first diode is electrically connected to the low-voltage DC power supply end, a second end of the coil is electrically connected to the collector of a transistor, a first resistor is connected in parallel to the emitter and base of the transistor, the emitter of the transistor is grounded, the base of the transistor receives a control signal from the main control or the communication circuit, and the coil turns on or off the connection between the first contact and the second contact when working.

4. The socket with integrated intelligent charging and fire monitoring according to claim 3, characterized in that: The number of the channel circuits is consistent with the number of the power supply ports of the socket.

5. The socket integrating intelligent charging and fire monitoring according to claim 3, characterized in that: The base of the transistor in the channel circuit receives a control signal from the communication circuit.

6. The socket integrating intelligent charging and fire monitoring according to claim 1, characterized in that: The sensor comprises: an image sensor, and the image sensor is used for smoke recognition, flame recognition and acquiring scene images.

7. The socket integrating intelligent charging and fire monitoring according to claim 6, characterized in that: The sensor comprises: a flame sensor.

8. The socket integrating intelligent charging and fire monitoring according to claim 1, characterized in that: The communication circuit is electrically connected to the charging metering power detection circuit, and the charging metering power detection circuit is electrically connected to the neutral line input terminal, the neutral line output terminal and the live line input terminal respectively, and the main control performs battery charging state detection, overcharge protection, short circuit protection and overload protection through the charging metering power detection circuit; When the charging metering power detection circuit detects that the charging power is abnormally large, the channel circuit performs a power cut-off action; When the charging metering power detection circuit detects that the charging power is abnormally low, the channel circuit performs a power cut-off action.

9. The socket integrating intelligent charging and fire monitoring according to claim 8, characterized in that: The charging metering power detection circuit is electrically connected to the communication circuit via an optocoupler isolation circuit, a step-down circuit supplies power to the charging metering power detection circuit, and the step-down circuit is electrically connected to the isolation circuit.

10. The socket integrating intelligent charging and fire monitoring according to claim 1, characterized in that: When the sensor is working: if a fire hazard is triggered, the channel circuit executes a power cut-off action, the communication circuit transmits the working status data of the current device to the external terminal as required, and the communication circuit receives control data and configuration data from the external terminal.

Images