Fire exit door closing control method and device
By using self-generated electricity and Hall effect sensors to monitor the angle of fire doors, an automated closing command is generated, solving the problems of incorrect fire door sequence and power failure control, and realizing safe door closing in the event of a power outage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TENDYRON CORP
- Filing Date
- 2026-01-28
- Publication Date
- 2026-04-28
AI Technical Summary
Fire doors are prone to not sealing properly when closed due to reversed closing order, and the door angle cannot be accurately controlled when the power is off, posing a safety hazard.
The system uses self-generated electricity to collect angle data of the front and rear doors of the fire door, monitors the door status through Hall sensors, and generates automatic closing commands to ensure that the front and rear doors close in the correct sequence.
It can achieve automated control without external power supply in the event of a power outage, avoiding the problem of doors not closing properly and meeting the safety closing requirements of fire doors in complex scenarios.
Smart Images
Figure CN121932091A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electronic control technology, and in particular to a method and device for controlling the closing of fire doors. Background Technology
[0002] Fire escape doors must follow the closing sequence of "close the front door first, then close the rear door over the front door." If the sequence is reversed (e.g., the rear door is closed before the front door is fully closed), the doors may become jammed and unable to close properly. In actual use, people often push the doors casually when passing through fire escape routes, easily ignoring the sequence requirements, and the motor may mis-control the sequence, causing safety hazards.
[0003] Meanwhile, fire doors need to be powered off when static to ensure that people can easily push them open in an emergency. However, after the power is off, it is impossible to know the specific angle at which the door is pushed open. Even if the bus is powered in some scenarios (only the CPU is powered), there is still a lack of angle monitoring methods in extreme cases (such as maintenance or power outages). This causes the motor to be unable to adapt to the actual state of the door when it receives the closing command, making it difficult to accurately control the sequence.
[0004] In addition, fire doors have specific requirements for driving force; they cannot be too large. Incorrect opening and closing sequences cannot be corrected by forced driving force, so intelligent control logic is needed to solve the problem. Summary of the Invention
[0005] The present invention aims to solve one of the above-mentioned problems.
[0006] The main objective of this invention is to provide a method for controlling the closing of fire doors;
[0007] Another object of the present invention is to provide a fire door closing control device.
[0008] To achieve the above objectives, the technical solution of the present invention is specifically implemented as follows:
[0009] This invention provides a method for controlling the closing of a fire door, comprising:
[0010] The rotation angle data of the front and rear doors of the fire door were collected using self-generated electrical energy.
[0011] When the triggering condition is met, the positional relationship between the front and rear doors of the fire door is determined based on the angle data, and a closing command is generated.
[0012] The closing command is sent to the fire door motor, causing the fire door motor to perform the closing operation according to the closing command.
[0013] Optionally, the self-generated electrical energy includes: electrical energy generated by the motor when the fire door is pushed open.
[0014] Optionally, the collection of rotation angle data for the front and rear doors of the fire door includes:
[0015] Hall effect sensors are used to collect the rotation angle data of the front and rear doors of the fire door.
[0016] Optionally, the triggering condition includes:
[0017] The fire door did not shift within the preset time; or
[0018] A fire warning instruction has been received.
[0019] Optionally, determining the positional relationship between the front and rear doors of the fire door based on the angle data and generating a closing command includes:
[0020] If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or
[0021] If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.
[0022] Another aspect of the present invention provides a fire door closing control device, comprising:
[0023] Self-generating module, used to generate self-generated electrical energy;
[0024] The data acquisition module is used to collect the rotation angle data of the front and rear doors of the fire door using self-generated electrical energy;
[0025] The generation module is used to determine the positional relationship between the front and rear doors of the fire door when the triggering conditions are met, and generate a door closing command.
[0026] The execution module is used to send the closing command to the fire door motor, so that the fire door motor performs the closing operation according to the closing command.
[0027] Optionally, the self-generated electrical energy includes: electrical energy generated by the motor when the fire door is pushed open.
[0028] Optionally, the acquisition module acquires the rotation angle data of the front and rear doors of the fire door in the following manner:
[0029] Hall effect sensors are used to collect the rotation angle data of the front and rear doors of the fire door.
[0030] Optionally, the triggering condition includes:
[0031] The fire door did not shift within the preset time; or
[0032] A fire warning instruction has been received.
[0033] Optionally, the generation module determines the positional relationship between the front and rear doors of the fire door based on the angle data in the following manner, and generates a door closing command:
[0034] If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or
[0035] If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.
[0036] As can be seen from the technical solution provided by the present invention, the present invention provides a method and device for controlling the closing of fire doors. It requires no additional power supply, generating electricity through the mechanical energy of the door opening when the power is off, thus solving the power source problem for angle monitoring. No built-in battery or external power supply is needed. Furthermore, it requires no manual intervention or additional setting of sequence parameters; the closing logic can be automatically implemented using only angle data, avoiding the problem of doors not closing properly due to incorrect sequence. The present invention can cover various scenarios involving fire doors, including situations with power on the mains, complete power failure (e.g., during maintenance), and complex situations such as personnel pushing the door at will, meeting the requirements of being able to open when power is off and close tightly when power is on. Attached Figure Description
[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0038] Figure 1 A flowchart of a fire door closing control method provided in an embodiment of the present invention;
[0039] Figure 2 This is a schematic diagram of the structure of the fire door closing control device provided in an embodiment of the present invention. Detailed Implementation
[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0042] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.
[0043] Figure 1 A flowchart of a fire door closing control method provided in an embodiment of the invention is shown. See also: Figure 1 The fire door closing control method provided in this embodiment of the invention utilizes self-generated electrical energy for power supply, including:
[0044] S1 uses self-generated electrical energy to collect the rotation angle data of the front and rear doors of the fire door;
[0045] S2, when the triggering condition is met, determine the positional relationship between the front and rear doors of the fire door based on the angle data, and generate a door closing command;
[0046] S3, the door closing command is sent to the fire door motor, so that the fire door motor performs the door closing operation according to the door closing command.
[0047] Specifically, the fire door of this invention is a double-leaf fire door, comprising two doors: a front door and a rear door. The front and rear doors can be installed after the fire door itself has been installed. The fire door of this invention uses a motor to close. This invention includes a self-generating module that can power the fire door motor.
[0048] As an optional embodiment of the present invention, the method of supplying power using self-generated electrical energy includes: using the electrical energy generated by the motor driven when the fire door is pushed open to supply power.
[0049] Specifically, when the fire door is pushed open, the door body drives the motor to operate, and the motor generates electricity, which can provide power for the fire door control. This electricity can be directly used for data acquisition when collecting the rotation angle data of the front and rear doors. Alternatively, an energy storage module, such as a battery, can be installed to store the electrical energy generated when the fire door is pushed open, and then use the energy storage module to provide power. The specific implementation method is not specifically limited in this invention; any method that utilizes the electrical energy generated by the motor when the fire door is pushed open to provide power should fall within the scope of protection of this invention.
[0050] As an optional embodiment of the present invention, the acquisition of the rotation angle data of the front and rear doors of the fire door includes: acquiring the rotation angle data of the front and rear doors of the fire door using a Hall sensor.
[0051] Specifically, after the motor generates current, it can provide power to the Hall sensor. With the power obtained by the motor, the Hall sensor can collect the angle data of the fire door's rotation and record the opening status of the front and rear doors in real time, including but not limited to: whether it is fully open, half open, or whether the sequence is reversed. Thus, there is no need to provide additional power supply equipment; power can be supplied by the self-generated power.
[0052] As an optional implementation of this invention, the triggering conditions include: the fire door body has not shifted for a preset time; or a fire warning command has been received.
[0053] Specifically, the present invention can generate door closing instructions according to the scenario, such as closing the door after a timed period of 1 minute when no one moves it, or closing the door when a fire alarm is triggered. After receiving the door closing instruction, the fire door motor can perform the door closing operation.
[0054] As an optional implementation of this invention, the step of determining the positional relationship between the front and rear doors of the fire door based on the angle data and generating a closing command includes:
[0055] If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or
[0056] If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.
[0057] Specifically, the fire door motor of this invention, based on door angle data recorded by Hall sensors, can determine the current positional relationship between the front and rear doors and automatically adjust the closing sequence: if the rear door is already in front of the front door, the rear door is briefly opened first, and then closed after the front door is completely closed; if the fire door sequence is normal, the closing operation is performed according to the default order of front door closing first and rear door closing last. Of course, this invention can use self-generated electrical energy to generate the closing command, or it can use electrical energy on the bus to generate the closing command; this is not specifically limited in this invention.
[0058] Therefore, the fire door closing control method provided by this invention requires no additional power supply. In the event of a power outage, it generates electricity using the mechanical energy of the door being pushed open, thus solving the power source problem for angle monitoring. No built-in battery or external power supply is needed. Furthermore, no manual intervention or additional sequence parameters need to be set; the closing logic can be automatically implemented using only angle data, avoiding the problem of doors not closing properly due to incorrect sequence. This invention can cover various scenarios involving fire doors, including situations with power on the mains, complete power outages (e.g., during maintenance), and complex situations such as people pushing the door at will. It meets the requirements of being able to open when power is off and closing tightly when power is on.
[0059] Figure 2 This diagram illustrates the structure of a fire door closing control device provided in an embodiment of the present invention. This device employs the aforementioned fire door closing control method for closing control. The following is only a brief description of the structure and function of the fire door closing control device; for other matters not covered herein, please refer to the relevant descriptions of the aforementioned fire door closing control method, which will not be elaborated upon here. See [link to documentation]. Figure 2 The fire door closing control device provided in this embodiment of the invention includes:
[0060] Self-generating module, used to generate self-generated electrical energy;
[0061] The data acquisition module is used to collect the rotation angle data of the front and rear doors of the fire door using self-generated electrical energy;
[0062] The generation module is used to determine the positional relationship between the front and rear doors of the fire door when the triggering conditions are met, and generate a door closing command.
[0063] The execution module is used to send the closing command to the fire door motor, so that the fire door motor performs the closing operation according to the closing command.
[0064] As an optional embodiment of the present invention, the self-generated electrical energy includes: electrical energy generated by a motor when the fire door is pushed open.
[0065] As an optional implementation of this invention, the acquisition module acquires the rotation angle data of the front and rear doors of the fire door in the following manner:
[0066] Hall effect sensors are used to collect the rotation angle data of the front and rear doors of the fire door.
[0067] As an optional implementation of this invention, the triggering condition includes:
[0068] The fire door did not shift within the preset time; or
[0069] A fire warning instruction has been received.
[0070] As an optional implementation of this invention, the generation module determines the positional relationship between the front and rear doors of the fire door based on the angle data in the following manner, and generates a door closing command:
[0071] If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or
[0072] If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.
[0073] Therefore, the fire door closing control device provided in this invention requires no additional power supply. In the event of a power outage, it generates electricity using the mechanical energy of the door being pushed open, thus solving the power source problem for angle monitoring. No built-in battery or external power supply is needed. Furthermore, no manual intervention or additional sequence parameter settings are required; the closing logic can be automatically implemented using only angle data, avoiding the problem of doors not closing properly due to incorrect sequence. This invention can cover various scenarios involving fire doors, including situations with power on the mains, complete power outages (e.g., during maintenance), and complex situations such as people pushing the door at will. It meets the requirements of being able to open when power is off and closing tightly when power is on.
[0074] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.
[0075] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.
[0076] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
[0077] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.
[0078] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.
[0079] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0080] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A method for controlling the closing of a fire door, characterized in that, include: The rotation angle data of the front and rear doors of the fire door were collected using self-generated electrical energy. When the triggering condition is met, the positional relationship between the front and rear doors of the fire door is determined based on the angle data, and a closing command is generated. The closing command is sent to the fire door motor, causing the fire door motor to perform the closing operation according to the closing command.
2. The method according to claim 1, characterized in that, The self-generated electrical energy includes: the electrical energy generated when the fire door is pushed open, which drives the motor to generate electricity.
3. The method according to claim 2, characterized in that, The collected data on the rotation angles of the front and rear doors of the fire doors include: Hall effect sensors are used to collect the rotation angle data of the front and rear doors of the fire door.
4. The method according to claim 3, characterized in that, The triggering conditions include: The fire door did not shift within the preset time; or A fire warning instruction has been received.
5. The method according to claim 4, characterized in that, The step of determining the positional relationship between the front and rear doors of the fire door based on the angle data and generating a door-closing command includes: If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.
6. A fire door closing control device, characterized in that, include: Self-generating module, used to generate self-generated electrical energy; The data acquisition module is used to collect the rotation angle data of the front and rear doors of the fire door using self-generated electrical energy; The generation module is used to determine the positional relationship between the front and rear doors of the fire door when the triggering conditions are met, and generate a door closing command. The execution module is used to send the closing command to the fire door motor, so that the fire door motor performs the closing operation according to the closing command.
7. The apparatus according to claim 6, characterized in that, The self-generated electrical energy includes: the electrical energy generated when the fire door is pushed open, which drives the motor to generate electricity.
8. The apparatus according to claim 7, characterized in that, The acquisition module collects the rotation angle data of the front and rear doors of the fire door in the following manner: Hall effect sensors are used to collect the rotation angle data of the front and rear doors of the fire door.
9. The apparatus according to claim 8, characterized in that, The triggering conditions include: The fire door did not shift within the preset time; or A fire warning instruction has been received.
10. The apparatus according to claim 9, characterized in that, The generation module determines the positional relationship between the front and rear doors of the fire door based on the angle data in the following manner, and generates a door closing command: If the current front door angle data of the fire door is greater than or equal to the rear door angle data, then a closing command is generated to open the rear door, close the front door, and then close the rear door again; or If the current front door angle data of the fire door is less than the rear door angle data, a closing command is generated to close the front door and then close the rear door.