Fire-fighting connection unit and fire-fighting system

Abstract

The utility model relates to a fire-fighting connection unit and a fire-fighting unit, and the fire-fighting connection unit is arranged between a control unit and an execution unit and comprises an input end, an output end and a controller. Wherein the input end communicates with the control unit, and the control unit obtains an execution signal. The output end communicates with the execution unit. The controller comprises a processor which communicates with the input end and outputs a control signal according to the execution signal. The first switch communicates with the processor. The second switch is connected in series with the first switch and communicates with the processor and the output end. The on-off states of the first switch and the second switch are controlled by the processor through control signals. According to the embodiment of the utility model, the processor is used for controlling the first switch and the second switch which are connected in series, and the first switch and the second switch simultaneously control the output end and the execution unit, so that the execution unit can be effectively prevented from being triggered by mistake, resource waste and casualties are prevented, and the reliability of a fire fighting system is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of fire fighting equipment, in particular to a fire fighting connection unit and a fire fighting system. Background Art

[0002] Fire safety is an important safety guarantee for production and life. Fire protection systems are usually set up in high-risk environments to promptly issue alarms or use pre-set devices to perform corresponding actions to eliminate or alleviate fire accidents.

[0003] In some application scenarios, the fire protection system may be falsely triggered, resulting in waste of resources or even safety accidents. Taking the fire protection system used for fire alarm or fire extinguishing as an example, under normal conditions, an alarm should be sounded or a fire extinguishing action should be performed when a fire occurs or the fire risk exceeds a threshold, such as sounding an alarm through an audible and visual alarm, or spraying a fire extinguishing agent. However, when the alarm system is interfered with by the environment, the audible and visual alarm may be falsely triggered or the fire extinguishing agent may be sprayed without a fire or a fire risk. In addition, the fire extinguishing agent spraying equipment is usually a disposable device, and false triggering will lead to waste of resources and increase the maintenance cost of the fire protection system. When there are people in the fire extinguishing area, the false triggering of the fire extinguishing agent spraying equipment may also result in direct casualties. Therefore, it is urgent to improve the reliability of the alarm system and reduce the risk of false triggering.

[0004] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Utility Model Content

[0005] In view of one or more defects in the prior art, the utility model provides a fire connection unit, which is arranged between the control unit and the execution unit, and the fire connection unit includes:

[0006] An input terminal, the input terminal communicates with the control unit and can obtain an execution signal from the control unit;

[0007] an output terminal, the output terminal communicating with the execution unit; and

[0008] A controller, the controller comprising:

[0009] a processor, the processor communicating with the input terminal and outputting a control signal according to the execution signal;

[0010] a first switch in communication with the processor; and

[0011] A second switch, the second switch is connected in series with the first switch and communicates with the processor and the output end; the switching states of the first switch and the second switch are both controlled by the processor through the control signal.

[0012] According to one aspect of the present invention, the switching state of the first switch and the switching state of the second switch are independent of each other.

[0013] According to one aspect of the utility model, the switch states of the first switch and the second switch include a closed state and an open state, the processor outputs the control signal according to the execution signal to control the first switch and the second switch to be in a closed state, and the execution unit performs a corresponding action.

[0014] According to one aspect of the present invention, when either one of the first switch and the second switch is in an off state, the execution unit does not perform any action.

[0015] According to one aspect of the utility model, any one of the first switch and the second switch is an electronic switch, and the other one of the first switch and the second switch is a relay.

[0016] According to one aspect of the utility model, the first switch is an electronic switch, the second switch is a relay, the first switch switches the switch state through an electronic valve, and the second switch switches the switch state through a mechanical structure.

[0017] According to one aspect of the utility model, the controller further includes:

[0018] A detection circuit, the first switch and the second switch communicate with the processor through the detection circuit, and the processor is configured to be able to obtain the switch status of the first switch and the second switch through the detection circuit.

[0019] According to one aspect of the utility model, the fire protection connection unit also includes:

[0020] A communicator, wherein the communicator communicates with the processor, and the processor outputs an alarm signal through the communicator according to the execution signal, the control signal, and the switch states of the first switch and the second switch.

[0021] According to one aspect of the utility model, the utility model also includes a fire fighting system, the fire fighting system comprising:

[0022] Control unit;

[0023] Execution unit;

[0024] As mentioned above, the fire protection connection unit is arranged between the control unit and the execution unit, and communicates with the control unit and the execution unit.

[0025] According to one aspect of the utility model, the execution unit includes one or more of an alarm device, a fire extinguishing agent release device and an electro-pneumatic gate valve.

[0026] Compared with the prior art, the embodiment of the utility model provides a fire connection unit, which uses a processor to control a first switch and a second switch connected in series, and the first switch and the second switch simultaneously control the output end and the execution unit, which can effectively prevent the execution unit from being triggered by mistake, prevent resource waste and casualties, and help improve the reliability of the fire protection system. The utility model also includes an embodiment of a fire protection system, which uses the aforementioned fire protection connection unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural block diagram of a fire protection connection unit in one embodiment of the utility model;

[0029] Figure 2A-2C is a circuit diagram of a processor, a first switch and a second switch in one embodiment of the utility model;

[0030] Figure 3 It is a structural block diagram of a fire protection connection unit in another embodiment of the utility model;

[0031] Figure 4 It is a structural block diagram of a fire protection system in one embodiment of the utility model. DETAILED DESCRIPTION

[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0037] The following describes embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0038] Figure 1 The structure of the fire fighting connection unit 100 according to an embodiment of the present utility model is shown below. Figure 1 The fire fighting connection unit 100 will be described.

[0039] The fire connection unit 100 in this embodiment is arranged between the control unit and the execution unit, wherein the control unit can output an execution signal, and the execution unit can execute a corresponding action according to the execution signal.

[0040] Specifically, the control unit may be, for example, a terminal device that can obtain various sensor data, and can monitor the fire risk within the monitoring range based on measured data or manually, and send an execution signal when the measured data exceeds a preset threshold. In other embodiments of the utility model, the control unit may also be integrated with the sensor, such as a smoke sensor, and when the smoke sensor detects smoke, an execution signal may be sent through the control unit.

[0041] The execution unit can be configured to be able to perform actions such as alarm and fire extinguishing. According to actual needs and specific designs, when the execution unit meets the triggering conditions, the corresponding action is executed. The execution unit can receive an execution signal and execute a corresponding action according to the execution signal, wherein the execution signal sent by the control unit and the execution signal that the execution unit can receive can be the same or different. For example, the execution signal received by the execution unit can be a pre-coded signal, or an electrical signal of a change in parameters such as voltage and current, or a mechanical signal generated by the displacement of a mechanical component, without specific limitation.

[0042] like Figure 1As shown, the fire connection unit 100 includes an input terminal 110, an output terminal 120 and a controller 130, wherein the input terminal 110 communicates with the control unit and is configured to be able to obtain an execution signal from the control unit. In different embodiments of the utility model, the fire connection unit 100 can be integrated with the control unit, or the fire connection unit 100 communicates with the control unit by wire or wirelessly through the input terminal 110, and the input terminal 110 is, for example, a wired data interface or a wireless receiving antenna and decoder.

[0043] The output end 120 communicates with the execution unit, for example, it can transmit a signal to the execution unit to control the execution unit to perform a corresponding action. In some embodiments of the utility model, the fire connection unit 100 can be integrated with the execution unit as a whole, or it can communicate with the execution unit in a wired or wireless manner through the output end 120. For example, the output end 120 includes a signal transmitter, or is connected to the power supply line, insurance mechanism, etc. of the execution unit, and can trigger the execution unit by changing the power supply state or the insurance mechanism.

[0044] like Figure 1 As shown, the controller 130 includes a processor 131, a first switch 132, and a second switch 133, wherein the processor 131 communicates with the input terminal 110 and can output a control signal according to the execution signal. In this embodiment, the control signal is used to control the switch state of the first switch 132 and the second switch 133. The processor 131 can be a pre-designed circuit, or a microcontroller such as a single chip microcomputer, a Raspberry Pi, etc. integrated on a circuit board.

[0045] The first switch 132 communicates with the processor 131, and the processor 131 can control the switching state of the first switch 132 by outputting a control signal. For example, the first switch 132 is integrated on a circuit board, and the processor 131 controls the first switch 132 through circuit design. For example, the processor 131 changes the switching state of the first switch 132 by controlling different current and voltage outputs, which will be specifically explained in subsequent embodiments.

[0046] The second switch 133 is connected in series with the first switch 132, and the second switch 133 is also in communication with the processor 131 and the output terminal 120. The switch state of the second switch 133 is also set to be controlled by the processor 131 through a control signal. The second switch 133 can also be integrated on a circuit board, and the second switch 133 is controlled by controlling different current and voltage outputs.

[0047] In this embodiment, the first switch 132 and the second switch 133 are connected in series, and are both configured such that the processor 131 controls the switch state using a control signal, which can improve the reliability of the fire protection system. Figure 1As shown, the first switch 132 and the second switch 133 in this embodiment are connected in series on the transmission path of the execution signal. When one of the first switch 132 and the second switch 133 fails (the switch adjustment is changed without receiving the control signal), the execution signal will not be output to the execution unit, and the execution unit will not be triggered by mistake. Even if the fire connection unit 100 in this embodiment is partially failed due to environmental influences, it will not cause the execution unit to be triggered by mistake, which can reduce the risk of casualties and prevent waste of resources.

[0048] According to a preferred embodiment of the present utility model, the switching state of the first switch 132 and the switching state of the second switch 133 are independent of each other and do not affect each other. Both are controlled by the control signal output by the processor 131, thereby further improving the reliability of the fire connection unit 100.

[0049] In a preferred embodiment of the utility model, the switch states of the first switch 132 and the second switch 133 include a closed state and an open state, and the processor 131 outputs a control signal according to the execution signal to control the first switch 132 and the second switch 133 to be in a closed state, and the execution unit can perform the corresponding action. In this embodiment, when the controller 130 receives the execution signal from the input end 110, it outputs a control signal to the first switch 132 and the second switch 133 to control the first switch 132 and the second switch 133 to be in a closed state, and the execution signal can be transmitted to the execution unit, and the execution unit performs the corresponding action. When the execution signal is not received, the processor 131 controls the first switch 132 and the second switch 133 to be in an open state. When any one of the first switch 132 and the second switch 133 is in an open state, the transmission path of the execution signal is disconnected, and the execution unit cannot receive the execution signal and remains in an untriggered state.

[0050] According to a specific embodiment of the present invention, the first switch 132 and the second switch 133 may be configured such that one of the first switch 132 and the second switch 133 is an electronic switch and the other is a mechanical switch, such as a relay.

[0051] The electronic switch can be configured to switch the switch state through an electronic valve, specifically, Figure 2A In the circuit design shown in , the processor 131 can realize the signal control of the electronic switch through OUT-IO-1 and OUT-IO-2. The relay switches the switch state through the mechanical structure, for example Figure 2B and Figure 2C As shown in , the processor 131 can be configured to control the mechanical switch of the relay through RELAY-R and RELAY-S.

[0052] In this embodiment, the first switch 132 and the second switch 133 are an electronic switch and a relay respectively, and have different resistance to environmental factors, which can further improve reliability and scope of application. For example, in an environment with strong electromagnetic interference, only the switching state of the electronic switch will be affected, and the relay will not fail, while in an environment with strong mechanical vibration, only the mechanical switch of the relay will be affected, and the electronic switch will not fail. The fire protection connection unit 100 in this embodiment can adapt to different working conditions.

[0053] Preferably, the first switch 132 is an electronic switch and the second switch 133 is a relay. The mechanical switch of the relay does not carry an electrical signal when the switch state is not switched, and the risk of outputting an erroneous signal due to interference is relatively small, which can prevent the execution unit from being triggered due to interference.

[0054] Figure 3 Another preferred embodiment of the present invention is shown, wherein the controller 130 further includes a detection circuit 134. In this embodiment, the first switch 132 and the second switch 133 communicate with the processor 131 via the detection circuit 134. The detection circuit 134 may be a pre-designed circuit on a circuit board, and the processor 131 may obtain the switch states of the first switch 132 and the second switch 133 via the detection circuit 134.

[0055] In this embodiment, a detection circuit 134 is provided, and the switch states of the first switch 132 and the second switch 133 are obtained through the detection circuit 134, so that it is possible to timely find out whether the first switch 132 and the second switch 133 are operating normally. For example, when the processor 131 sends a control signal, it is possible to obtain through the detection circuit 134 whether the switch states of the first switch 132 and the second switch 133 have been changed accordingly. If the switch state of one of them does not match the preset state, it can be determined that the switch cannot operate normally and there is a safety risk.

[0056] Preferably, the first switch 132 and the second switch 133 are both provided with corresponding detection circuits 134 , and the first switch 132 and the second switch 133 are independent of each other and do not interfere with each other.

[0057] In different embodiments of the present invention, the processor 131 can be configured to send out a detection signal regularly or irregularly, and detect whether the first switch 132 and the second switch 133 are operating normally according to the detection loop 134, and report the detection result in real time. The processor 131 can also be configured to output a corresponding control signal after obtaining an execution signal from the input terminal 110, and monitor the switch state of the first switch 132 and the second switch 133 by using the detection loop 134. If the switch state of any one of the first switch 132 and the second switch 133 does not match the preset state, an alarm can be issued.

[0058] Specifically, Figure 3 As shown, the fire connection unit 100 also includes a communicator 140, which communicates with the processor 131. The processor 131 is configured to output an alarm signal through the communicator 140 according to the execution signal, the control signal and the switching status of the first switch 132 and the second switch 133.

[0059] According to a specific embodiment of the utility model, when no alarm occurs, the switch state of the first switch 132 and the second switch 133 is in an open state. When the control unit sends an execution signal, the processor 131 outputs a control signal according to the execution signal to control the first switch 132 and the second switch 133 to switch to a closed state. The execution unit can receive the execution signal and perform a corresponding action.

[0060] In this embodiment, the first switch 132 and the second switch 133 are arranged in series, which can improve the reliability of the fire connection unit 100. At the same time, the detection circuit 134 can be used to timely obtain the switch status of the first switch 132 and the second switch 133. For example, when the processor 131 controls the first switch 132 and the second switch 133 to switch to the closed state, the first switch 132 or the second switch 133 is still in the open state. The processor 131 confirms that the first switch 132 or the second switch 133 is abnormal according to the execution signal, the control signal and the switch status, and sends an alarm signal through the communicator 140. Even if the first switch 132 or the second switch 133 cannot work normally, resulting in the inability of the execution unit to perform the corresponding action, the alarm signal can be used to remind people to evacuate in time to reduce the loss caused by the disaster.

[0061] like Figure 4 As shown, the utility model also includes an embodiment of a fire protection system 1, which includes a control unit 200, an execution unit 300 and a fire protection connection unit 100 as described in the above embodiments. The fire protection connection unit 100 is arranged between the control unit 200 and the execution unit 300, and communicates with the control unit 200 and the execution unit 300.

[0062] Specifically, the fire connection unit 100 can be integrated with the control unit 200, or integrated with the execution unit 300. The control unit 200, the execution unit 300 and the fire connection unit 100 can also be integrated into one device. The position of the fire connection unit 100 in this embodiment is flexible and can be arbitrarily combined with the control unit 200 and the execution unit 300.

[0063] In other embodiments of the present invention, a plurality of control units 200 may be provided in the fire protection system 1, and the plurality of control units 200 may independently output execution signals. The fire protection system 1 may also be provided with a plurality of execution units 300, and the fire protection connection unit 100 may independently control the execution units 300 or uniformly control the plurality of execution units 300 to execute corresponding actions.

[0064] According to a specific embodiment of the present utility model, the execution unit 300 may be one or more of an alarm device, a fire extinguishing agent release device and an electro-pneumatic gate valve to adapt to different working scenarios.

[0065] Finally, it should be noted that the above description is only an embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fire connection unit, characterized in that: Set between the control unit and the execution unit, the fire protection connection unit includes: An input terminal, the input terminal communicates with the control unit and can obtain an execution signal from the control unit; an output terminal, the output terminal communicating with the execution unit; and A controller, the controller comprising: a processor, the processor communicating with the input terminal and outputting a control signal according to the execution signal; a first switch in communication with the processor; and A second switch, the second switch is connected in series with the first switch and communicates with the processor and the output end; the switching states of the first switch and the second switch are both controlled by the processor through the control signal.

2. The fire fighting connection unit according to claim 1, characterized in that: The switching state of the first switch and the switching state of the second switch are independent of each other.

3. The fire fighting connection unit according to claim 1, characterized in that: The switch states of the first switch and the second switch include a closed state and an open state. The processor outputs the control signal according to the execution signal to control the first switch and the second switch to be in a closed state, and the execution unit executes a corresponding action.

4. The fire fighting connection unit according to claim 3, characterized in that: If either the first switch or the second switch is in an off state, the execution unit does not perform any action.

5. The fire fighting connection unit according to claim 1, characterized in that: Any one of the first switch and the second switch is an electronic switch, and the other one of the first switch and the second switch is a relay.

6. The fire fighting connection unit according to claim 5, characterized in that: The first switch is an electronic switch, the second switch is a relay, the first switch switches the switch state through an electronic valve, and the second switch switches the switch state through a mechanical structure.

7. The fire fighting connection unit according to any one of claims 1 to 6, characterized in that: The controller further comprises: A detection circuit, the first switch and the second switch communicate with the processor through the detection circuit, and the processor is configured to be able to obtain the switch status of the first switch and the second switch through the detection circuit.

8. The fire fighting connection unit according to claim 7, characterized in that: Also includes: A communicator, wherein the communicator communicates with the processor, and the processor outputs an alarm signal through the communicator according to the execution signal, the control signal, and the switch states of the first switch and the second switch.

9. A fire fighting system, characterized in that: include: Control unit; Execution unit; The fire protection connection unit according to any one of claims 1 to 8, wherein the fire protection connection unit is arranged between the control unit and the execution unit, and communicates with the control unit and the execution unit.

10. The fire fighting system according to claim 9, characterized in that: The execution unit includes one or more of an alarm device, a fire extinguishing agent release device and an electro-pneumatic gate valve.

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