Device and method suitable for preventing mistaken dialing of emergency call in elevator

Abstract

The invention discloses a device and method suitable for preventing mistaken dialing of an emergency call in an elevator. The device comprises an integrated telephone module, a first relay module, a second relay module, a dialing module and a power module. A communication interface of the integrated telephone module is connected to a communication line through a control loop of the first relay module; the dialing unit of the integrated telephone is in control connection with the second relay module; the first relay module is in control connection with the second relay module, the power module is in power supply connection with the first relay module and the second relay module, and the control input end of the first relay module is connected with a car dialing module. The integrated telephone communication line is physically isolated through the relay, and the problem that an existing integrated telephone is frequently and automatically dialed due to external interference is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator emergency calls, and in particular to a device and method for preventing misdialing of emergency calls in an elevator. Background Art

[0002] Today, elevators are widely used. In order to ensure the safety of personnel, elevators are generally equipped with emergency rescue telephones, which are used by trapped personnel to call for help from the outside world in time and achieve a rapid response to rescue. Conventional emergency rescue telephones have a button function and require manual dialing for help. They cannot accurately and effectively dial out the call for help in emergency situations. With the development of society, at present, integrated telephones with one-touch dialing have been gradually used in elevator cars, which can effectively and quickly dial emergency calls to the rescue center, improving the efficiency of emergency rescue operations. However, the existing integrated telephones are easily disturbed by external magnetic fields, affecting the quality of normal communication, especially for communication systems with old communication lines, poor shielding effects, and irregular wiring. The interference is particularly serious, and automatic dialing often occurs, triggering emergency rescue help information, which brings great trouble to the management and maintenance personnel of the elevator. Especially for the safe operation of high-speed elevators, the stability, accuracy and timeliness of emergency rescue communications are very important, which will directly affect the rescue response time and rescue progress. How to ensure that emergency rescue information can be accurately and reliably dialed to the elevator rescue center is a problem that needs to be solved urgently. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a device and method suitable for preventing accidental dialing of emergency calls in elevators. The device realizes automatic one-touch dialing under elevator fault conditions and physically isolates the communication line from the integrated telephone under non-fault conditions, thereby solving the problem of random dialing of the integrated telephone due to interference and ensuring timely, accurate and stable communication under elevator fault conditions.

[0004] The present invention provides a device suitable for preventing accidental dialing of emergency telephones in elevators, and the specific technical scheme is as follows:

[0005] The device includes an integrated telephone module, a first relay module, a second relay module, a dialing module and a power module;

[0006] The communication interface of the integrated telephone module is connected to the communication line through the control loop of the first relay module;

[0007] The dialing unit of the integrated telephone is controlled and connected with the second relay module;

[0008] The first relay module is control-connected to the second relay module, the power supply module is respectively connected to the first relay module and the second relay module for power supply, and the control input end of the first relay module is connected to the car dialing module.

[0009] Furthermore, the power supply module adopts a 24V DC power supply.

[0010] Furthermore, the second relay module is connected to the power module through the on-off control circuit of the first relay module.

[0011] Furthermore, the first relay module and the second relay module are both provided with a timing unit, and the relay is controlled to be disconnected by the timing unit.

[0012] Furthermore, the timing unit of the first relay module controls the on-off duration to be 3 minutes, and the timing unit of the second relay module controls the on-off duration to be 2 seconds.

[0013] Furthermore, the device also includes a fault detection module, and the fault detection module is connected to the first relay module by signal control.

[0014] The present invention also discloses a method for preventing misdialing of an emergency telephone in an elevator, which is specifically as follows:

[0015] S1: Detect whether the dial signal is triggered. If the dial signal is not triggered, the first relay module, the second relay module and the integrated telephone module are placed in an initial state; if the dial signal is triggered, the first relay module is controlled to be turned on, and the timing unit corresponding to the first relay module performs timing;

[0016] S2: After the first relay module is controlled to be turned on, the timing unit corresponding to the second relay module starts timing and simultaneously connects the communication line of the integrated telephone;

[0017] S3: After the timing unit corresponding to the second relay module reaches a preset time, the integrated telephone makes a dialing call until each module is placed in an initial state.

[0018] Furthermore, the dialing signal is triggered by the car dialing module or the fault detection module.

[0019] Furthermore, if the dialing signal is triggered, it also includes whether the dialing signal is triggered again. If the dialing signal is triggered again, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

[0020] Furthermore, after the timing unit corresponding to the first relay module reaches a preset time, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

[0021] The beneficial effects of the present invention are as follows:

[0022] The present invention physically isolates the integrated telephone communication line through a relay. When dialing is required, the first relay module is first triggered to connect the communication line, and then the second relay module is triggered. Based on the integrated telephone, a normal communication call is made according to the dialing process. After the call is over, the first relay module is triggered again to disconnect the integrated telephone from the communication line. When the caller does not trigger the relay to close the integrated telephone, the first relay module will automatically disconnect within 3 minutes. Each module is powered by a 24V power supply, and the power supply can be provided by the elevator. The device does not participate in the control of other functions of the elevator, has a small integrated volume, and is easy to install. The trigger circuit is directly connected to the buttons in the car and the output points of the control system. There is no need to modify the layout of the elevator car, thereby reducing safety risks. Communication access is achieved through the fault detection module and the car dialing button. When in use, manual one-key dialing can be performed, and the fault condition can automatically trigger the dialing, which solves the interference and misdialing problems currently faced and improves the efficiency of emergency rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the principle structure of the device of the present invention.

[0024] Figure 2 It is a schematic flow chart of the method of the present invention. DETAILED DESCRIPTION

[0025] The following description clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the invention product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 a limitation on the present invention. In addition, the terms "first" and "second" are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" 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 direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] Embodiment 1 of the present invention discloses a device for preventing accidental dialing of emergency telephones in an elevator, such as Figure 1 As shown, the details are as follows:

[0030] The device includes an integrated telephone module, a first relay module, a second relay module, a dialing module and a power module;

[0031] Specifically, the power supply module adopts a 24V DC power supply.

[0032] The communication interface of the integrated telephone module is connected to the communication line through the control loop of the first relay module;

[0033] The first relay module plays a role of delaying power off, and the integrated telephone module connects the communication line after the first relay module is turned on.

[0034] The dialing unit of the integrated telephone is controlled and connected with the second relay module;

[0035] The second relay module plays a role of delayed dialing, that is, the second relay module is turned on after a delay, so that the integrated telephone module can achieve one-touch dialing.

[0036] The first relay module is control-connected to the second relay module, the power supply module is respectively connected to the first relay module and the second relay module for power supply, and the control input end of the first relay module is connected to the car dialing module.

[0037] The car dialing module is a car dialing button. By pressing the car dialing button, the on and off of the first relay module is controlled to realize the dialing communication of the integrated telephone.

[0038] As a preferred embodiment, the second relay module is connected to the power module through a control on-off circuit of the first relay module;

[0039] That is, the operation of the second relay module is controlled by the on-off of the first relay module.

[0040] As a preferred embodiment, both the first relay module and the second relay module are provided with a timing unit, and the relay is controlled to be disconnected by the timing unit.

[0041] Specifically, the timing unit of the first relay module controls the on-off duration to be 3 minutes, and the timing unit of the second relay module controls the on-off duration to be 2 seconds;

[0042] The control on-off duration of the timing unit is set according to actual conditions and is not specifically limited here.

[0043] As a preferred embodiment, the device further comprises a fault detection module, and the fault detection module is connected to the first relay module by signal control;

[0044] When the fault detection module detects an elevator fault, the first collector module is controlled to be turned on through a signal to achieve dial-up communication of the integrated telephone.

[0045] Example 2

[0046] Embodiment 2 of the present invention discloses a method for preventing accidental dialing of emergency calls in an elevator, based on the device described in embodiment 1 above, such as Figure 2 As shown, the specific process is as follows:

[0047] S1: Detect whether the dial signal is triggered. If the dial signal is not triggered, the first relay module, the second relay module and the integrated telephone module are placed in an initial state; if the dial signal is triggered, the first relay module is controlled to be turned on, and the timing unit corresponding to the first relay module performs timing;

[0048] Specifically, the dialing signal is triggered by the car dialing module or the fault detection module.

[0049] S2: After the first relay module is controlled to be turned on, the timing unit corresponding to the second relay module starts timing and simultaneously connects the communication line of the integrated telephone;

[0050] S3: After the timing unit corresponding to the second relay module reaches a preset time, the integrated telephone makes a dialing call until each module is placed in an initial state.

[0051] As a preferred embodiment, if the dial signal is triggered, it also includes whether the dial signal is triggered again. If the dial signal is triggered again, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

[0052] As a preferred embodiment, after the timing unit corresponding to the first relay module reaches a preset time, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

[0053] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A device for preventing accidental dialing of emergency telephones in elevators, characterized in that: It includes an integrated telephone module, a first relay module, a second relay module, a dialing module and a power supply module; The communication interface of the integrated telephone module is connected to the communication line through the control loop of the first relay module; The dialing unit of the integrated telephone is controlled and connected with the second relay module; The first relay module is control-connected to the second relay module, the power supply module is respectively connected to the first relay module and the second relay module for power supply, and the control input end of the first relay module is connected to the car dialing module.

2. The device for preventing accidental dialing of emergency telephone in elevator according to claim 1, characterized in that: The power supply module adopts a 24V DC power supply.

3. The device for preventing accidental dialing of emergency telephone in elevator according to claim 1, characterized in that: The second relay module is connected to the power module through the on-off control circuit of the first relay module.

4. The device for preventing accidental dialing of emergency telephone in elevator according to claim 1, characterized in that: The first relay module and the second relay module are both provided with a timing unit, and the relay is controlled to be disconnected by the timing unit.

5. The device for preventing accidental dialing of emergency telephone in elevator according to claim 4, characterized in that: The timing unit of the first relay module controls the on-off duration to be 3 minutes, and the timing unit of the second relay module controls the on-off duration to be 2 seconds.

6. The device for preventing accidental dialing of emergency telephone in an elevator according to any one of claims 1 to 5, characterized in that: The device also includes a fault detection module, which is connected to the first relay module by signal control.

7. A method for preventing accidental dialing of emergency calls in an elevator, characterized in that: The device according to claim 6 comprises: S1: Detect whether the dial signal is triggered. If the dial signal is not triggered, the first relay module, the second relay module and the integrated telephone module are placed in an initial state; if the dial signal is triggered, the first relay module is controlled to be connected, and the timing unit corresponding to the first relay module performs timing; S2: After the first relay module is controlled to be turned on, the timing unit corresponding to the second relay module starts timing and simultaneously connects the communication line of the integrated telephone; S3: After the timing unit corresponding to the second relay module reaches a preset time, the integrated telephone makes a dialing call until each module is placed in an initial state.

8. The method for preventing accidental dialing of emergency telephones in elevators according to claim 7, characterized in that: The dialing signal is triggered by the car dialing module or the fault detection module.

9. The method for preventing accidental dialing of emergency telephones in elevators according to claim 7, characterized in that: If the dial signal is triggered, it also includes whether the dial signal is triggered again. If the dial signal is triggered again, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

10. The method for preventing accidental dialing of emergency telephones in elevators according to claim 7, characterized in that: After the timing unit corresponding to the first relay module reaches a preset time, the first relay module, the second relay module and the integrated telephone module are placed in an initial state.

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