Elevator voice reminding system

Abstract

The utility model discloses an elevator voice reminding system which is arranged on an elevator and comprises a relay logic judgment module and a voice broadcast module, and the relay logic judgment module is respectively connected with the voice broadcast module, a power supply of the elevator, an overvoltage and undervoltage protector and a light curtain and is used for reminding the elevator according to the detected working states of the power supply, the overvoltage and undervoltage protector and the light curtain. And the voice broadcast module is controlled to work. According to the elevator voice reminding system, the relay logic judgment module and the voice broadcasting module which are connected are arranged, and the relay logic judgment module is connected with the power source, the overvoltage and undervoltage protector and the light curtain of the elevator so as to detect the working states of the power source, the overvoltage and undervoltage protector and the light curtain; the voice broadcast module is directly controlled to work through the relay logic judgment module according to a detection result, power failure alarm, voltage fluctuation alarm and door blocking behavior alarm can be achieved without accessing a control mainboard of the elevator, the logic judgment and voice broadcast control process does not depend on program control, and the fault rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator voice reminder system. Background Technology

[0002] With the rapid development of modern high-rise buildings, elevators, as a vertical transportation tool, are increasingly favored by people. In order to inform passengers of the current floor the elevator has reached, a voice module can be installed in the elevator car. However, traditional elevator voice modules only provide floor announcements, which is a single function. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an elevator voice reminder system to expand the types of voice announcements in elevators.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved through the following technical solution: providing an elevator voice reminder system, installed on an elevator, including a relay logic judgment module and a voice broadcast module. The relay logic judgment module is connected to the voice broadcast module, the elevator's power supply, over / under voltage protector, and light curtain, respectively, and is used to control the voice broadcast module to work according to the detected working status of the power supply, the over / under voltage protector, and the light curtain.

[0005] The further technical solution is as follows: the relay logic judgment module includes a first intermediate relay, a second intermediate relay and a third intermediate relay. The first intermediate relay is connected to the feedback terminal of the light curtain, the second intermediate relay is connected to the power supply, the input terminal of the over / under voltage protector is connected to the power supply, the output terminal of the over / under voltage protector is connected to the third intermediate relay, the normally closed contact of the third intermediate relay and the normally open contact of the second intermediate relay are connected in series to form a first broadcast link, and the first broadcast link is connected to the voice broadcast module.

[0006] The further technical solution is as follows: the relay logic judgment module further includes a first time relay, the coil of the first intermediate relay is connected to the feedback terminal of the light curtain, the normally open contact of the first intermediate relay is connected in series with the coil of the first time relay to form a first delay trigger link, the first delay trigger link is connected to the power supply, the normally open contact of the first time relay is connected to the voice broadcast module, and the normally open contact of the first time relay is connected in parallel with the first broadcast link.

[0007] The further technical solution is that the delay range of the first time relay is 10 to 20 seconds.

[0008] The further technical solution is as follows: the relay logic judgment module further includes a fourth intermediate relay, the coil of the fourth intermediate relay is connected to the elevator's power-off and re-leveling device, the normally open contact of the fourth intermediate relay is connected to the voice broadcast module, the normally open contact of the fourth intermediate relay is connected in parallel with the first broadcast link, the normally closed contact of the second intermediate relay is connected in series with the normally closed contact of the fourth intermediate relay to form a second broadcast link, the second broadcast link is connected to the voice broadcast module, and the second broadcast link is connected in parallel with the first broadcast link.

[0009] The further technical solution is as follows: the relay logic judgment module further includes a second time relay, the coil of the second time relay and the normally closed contact of the second intermediate relay are connected in series to form a second delay link, the second delay link is connected to the emergency battery of the elevator, the emergency battery is connected to the power input terminal of the voice broadcast module, and the normally closed contact of the second time relay is electrically connected between the emergency battery and the power input terminal of the voice broadcast module.

[0010] The further technical solution is that the delay range of the second time relay is 2 to 5 minutes.

[0011] The further technical solution is as follows: the light curtain is model DAA24591C5.

[0012] The beneficial technical effects of this utility model are as follows: The elevator voice reminder system of this utility model sets up a relay logic judgment module and a voice broadcast module connected together. The relay logic judgment module is connected to the elevator's power supply, over / under voltage protector, and light curtain respectively to detect whether the power supply has failed, detect the start and stop of the over / under voltage protector, and detect whether the light curtain is blocked. The relay logic judgment module directly controls the voice broadcast module to work according to the detection results, so as to call the corresponding pre-stored voice for broadcast, thus expanding the types of elevator voice broadcasts. All logic judgments are implemented through the relay logic judgment module, which can realize power outage alarm, voltage fluctuation alarm, and door blocking behavior alarm without connecting to the elevator's control board, thus expanding the function of the elevator voice reminder system. The logic judgment and voice broadcast control process does not rely on program control, reducing the failure rate and having low requirements for protocol compatibility. Moreover, by detecting the start and stop of the over / under voltage protector, it can monitor whether the power supply voltage fluctuates, thus realizing the integration of multiple types of reminder functions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram illustrating the framework of the elevator voice reminder system provided in this embodiment of the utility model.

[0015] Figure 2 A connection diagram illustrating the specific application of the elevator voice reminder system provided in this embodiment of the utility model;

[0016] Figure 3 The circuit diagram is shown for a specific application of the elevator voice reminder system provided in this embodiment of the utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the elevator voice reminder system provided in this embodiment of the present invention. The elevator voice reminder system is installed on the elevator and includes a relay logic judgment module 11 and a voice broadcast module 12. The relay logic judgment module 11 is connected to the voice broadcast module 12, the elevator power supply 21, the over / under voltage protector 22, and the light curtain 23, respectively, and is used to control the voice broadcast module 12 to work according to the detected working status of the power supply 21, the over / under voltage protector 22, and the light curtain 23.

[0019] The elevator voice prompt system can be installed in the control box on the elevator. The elevator power supply 21 can be mains power, and the working state of the power supply 21 includes power on and power off. By detecting the working state of the power supply 21, the power on and power off of the power supply 21 can be determined. In conjunction with the voice broadcast module 12, a power outage alarm can be broadcast. The elevator may include a power supply module connected to the power supply 21 to convert the voltage of the power supply 21 into the working voltage of the elevator component modules and output it to the corresponding component modules. The elevator component modules include a light curtain 23, and the power supply module can provide power for the operation of the light curtain 23. The voice broadcast module 12 can be connected to the elevator's power supply module, and the elevator's power supply module provides power for the operation of the voice broadcast module 12. The over / under voltage protector 22 is a multifunctional monitoring and protection instrument for three-phase three-wire power systems or three-phase electrical equipment. It integrates three-phase voltage display, overvoltage protection, undervoltage protection, phase loss protection (phase disconnection protection), three-phase voltage imbalance protection, and phase sequence protection (phase reversal protection). It can monitor the voltage, phase sequence, phase loss, and phase balance in a three-phase power supply system. For abnormal conditions that may endanger the safe and reliable operation of the power system and equipment, it can promptly issue alarm signals, thereby maximizing the protection of machinery, equipment, and systems, improving their effectiveness, and reducing maintenance costs and time caused by three-phase system failures. The over / under voltage protector 22 provides relay protection against overvoltage, undervoltage, phase disconnection, phase reversal (reverse phase sequence), and three-phase voltage imbalance in the three-phase input power supply. The operating status of the over / under voltage protector 22 includes its activation and deactivation. Detecting the operating status of the over / under voltage protector 22 allows for the determination of voltage fluctuations in the power supply 21. Combined with the voice broadcast module 12, it can provide an alarm for voltage fluctuations. The operating status of the light curtain 23 includes whether it is obstructed. Detecting the operating status of the light curtain 23 allows for the determination of whether it is obstructed. Combined with the voice broadcast module 12, it can provide an alarm for obstruction of access.The elevator voice reminder system uses a relay logic judgment module 11 and a voice broadcast module 12 connected together. The relay logic judgment module 11 is connected to the elevator's power supply 21, over / under voltage protector 22, and light curtain 23, respectively, to detect whether the power supply 21 has failed, to detect the start / stop of the over / under voltage protector 22, and to detect whether the light curtain 23 is blocked. Based on the detection results, the relay logic judgment module 11 directly controls the voice broadcast module 12 to call up the corresponding pre-stored voice for broadcast, thus expanding the types of elevator voice broadcasts. All logic judgments are implemented through the relay logic judgment module 11, which can realize power outage alarms, voltage fluctuation alarms, and door blocking behavior alarms without connecting to the elevator's control board, thus expanding the functionality of the elevator voice reminder system. The logic judgment and voice broadcast control process does not rely on program control, reducing the failure rate and having low requirements for protocol compatibility. Moreover, by detecting the start / stop of the over / under voltage protector 22, it can monitor whether the voltage of the power supply 21 has fluctuated, realizing the integration of multiple types of reminder functions.

[0020] Preferably, the relay logic judgment module 11 includes a first intermediate relay KA1, a second intermediate relay KA2, and a third intermediate relay KA3. The first intermediate relay KA1 is connected to the feedback terminal of the light curtain 23 so that it can determine whether the light curtain 23 is blocked based on the working state of the light curtain 23. The second intermediate relay KA2 is connected to the power supply 21 so that it can determine whether the power supply 21 is powered on or off based on the working state of the power supply 21. The input terminal of the over / under voltage protector 22 is connected to the power supply 21 so as to detect whether the voltage of the power supply 21 fluctuates and to operate when the voltage of the power supply 21 is abnormal. The output terminal of the over / under voltage protector 22 is connected to the third intermediate relay KA3 so that it can determine whether the voltage of the power supply 21 is abnormally fluctuating based on the working state of the over / under voltage protector 22. The normally closed contact of the third intermediate relay KA3 and the normally open contact of the second intermediate relay KA2 are connected in series to form a first broadcast link, which is connected to the voice broadcast module 12. In this circuit, the coil of the second intermediate relay KA2 is connected to the power supply 21, and the coil of the third intermediate relay KA3 is connected to the output terminal of the over / under voltage protector 22. When the power supply 21 is de-energized, the over / under voltage protector 22 detects voltage fluctuations in the power supply 21 and activates due to the abnormal voltage. At this time, the third intermediate relay KA3 operates. The normally closed contact of the third intermediate relay KA3 is connected in series with the normally open contact of the second intermediate relay KA2, forming a mechanical interlock. This avoids conflicts between voltage fluctuation alarms and power outage alarms. Furthermore, when the power supply 21 is energized, priority is given to detecting any abnormal voltage in the power supply 21. Through multi-relay coordinated control, multiple types of alarm functions are integrated.

[0021] Specifically, in this embodiment, the relay logic judgment module 11 further includes a first time relay KT1. The coil of the first intermediate relay KA1 is connected to the feedback terminal of the light curtain 23. The normally open contact of the first intermediate relay KA1 is connected in series with the coil of the first time relay KT1 to form a first delay trigger link. The first delay trigger link is connected to the power supply 21. The normally open contact of the first time relay KT1 is connected to the voice broadcast module 12. The normally open contact of the first time relay KT1 is connected in parallel with the first broadcast link. The first delay trigger link is connected in parallel with the coil of the second intermediate relay KA2. By setting a first time relay KT1, when the first intermediate relay KA1 detects that the light curtain 23 is blocked, the first time relay KT1 forms a circuit with the power supply 21. When the first intermediate relay KA1 detects that the light curtain 23 is blocked for a duration exceeding the delay of the first time relay KT1, the time for the first time relay KT1 to form a circuit with the power supply 21 exceeds the delay of the first time relay KT1, triggering the first time relay KT1 to work. The normally open contact of the first time relay KT1 closes to control the voice broadcast module 12 to perform a door blocking behavior alarm.

[0022] Preferably, the delay range of the first time relay KT1 is 10 to 20 seconds. In this embodiment, the delay of the first time relay KT1 is set to 15 seconds. When the first intermediate relay KA1 detects that the light curtain 23 is blocked for more than 15 seconds, the time for which the first time relay KT1 and the power supply 21 form a circuit exceeds 15 seconds, triggering the first time relay KT1 to work. The normally open contact of the first time relay KT1 closes to control the voice broadcast module 12 to issue an alarm for door blocking behavior.

[0023] Specifically, in this embodiment, the relay logic judgment module 11 further includes a fourth intermediate relay KA4. The coil of the fourth intermediate relay KA4 is connected to the elevator's power-off re-leveling device 25. The normally open contact of the fourth intermediate relay KA4 is connected to the voice broadcast module 12. The normally open contact of the fourth intermediate relay KA4 is connected in parallel with the first broadcast link. The normally closed contact of the second intermediate relay KA2 is connected in series with the normally closed contact of the fourth intermediate relay KA4 to form a second broadcast link. The second broadcast link is connected to the voice broadcast module 12 and is connected in parallel with the first broadcast link. The power-off re-leveling device 25 is used to automatically switch to operation when the elevator suddenly encounters a power outage 21, taking over all control of the elevator, outputting the necessary power to move the elevator to the leveling position, and opening the car door to allow passengers to safely exit the elevator. The normally closed contact of the second intermediate relay KA2 is connected in series with the normally closed contact of the fourth intermediate relay KA4 to form a mechanical interlock.

[0024] Specifically, in this embodiment, the relay logic judgment module 11 further includes a second time relay KT2. The coil of the second time relay KT2 is connected in series with the normally closed contact of the second intermediate relay KA2 to form a second delay link. The second delay link is connected to the elevator's emergency battery 24. The emergency battery 24 is connected to the power input terminal of the voice broadcast module 12. The normally closed contact of the second time relay KT2 is electrically connected between the emergency battery 24 and the power input terminal of the voice broadcast module 12. The elevator's power supply module is connected to the power input terminal of the voice broadcast module 12 so that when the power is on, it supplies power to the voice broadcast module 12. When the power is off, the emergency battery 24 operates and supplies power to the voice broadcast module 12. By setting a second time relay KT2, when the second intermediate relay KA2 detects that the power supply 21 is out of power, the second time relay KT2 and the emergency battery 24 form a circuit. When the second intermediate relay KA2 detects that the power supply 21 is out of power for a longer period than the delay of the second time relay KT2, the time for the second time relay KT2 to form a circuit with the emergency battery 24 exceeds the delay of the second time relay KT2, triggering the second time relay KT2 to work. The normally closed contact of the second time relay KT2 opens, realizing the automatic shutdown of the delayed broadcast of the power outage alarm.

[0025] Preferably, the delay range of the second time relay KT2 is 2 to 5 minutes. In this embodiment, the delay of the second time relay KT2 is 2 minutes. When the second intermediate relay KA2 detects that the power supply 21 has been out of power for more than 2 minutes, it triggers the second time relay KT2 to work. The normally closed contact of the second time relay KT2 opens, that is, the power outage alarm broadcast automatically turns off after 2 minutes, realizing the automatic shutdown of the delayed broadcast of the power outage alarm.

[0026] Specifically, the light curtain 23 is model DAA24591C5. The over / under voltage protector 22 can be an OUVR-1 self-resetting over / under voltage protector.

[0027] Specifically, the first time relay KT1 operates at an AC voltage of 220V, the second time relay KT2 operates at a DC voltage of 12V, the first intermediate relay KA1 operates at a DC voltage of 24V, the second intermediate relay KA2 and the third intermediate relay KA3 operate at an AC voltage of 220V, and the fourth intermediate relay KA4 operates at a DC voltage of 48V.

[0028] Preferably, in this embodiment, the voice broadcast module 12 includes a speaker and an audio chip. The audio chip is connected to the speaker and can store voice broadcast content such as power outage alarm, voltage fluctuation alarm, door blocking alarm, and emergency rescue alarm. The voice broadcast module 12 also includes a pin socket. The relay logic judgment module 11 is connected to the audio chip through the pin socket. The pin socket includes multiple pins, and each pin can output a corresponding signal to control the audio chip to output the corresponding voice broadcast content to the speaker. The speaker and the audio chip are connected to the elevator's power supply module.

[0029] In summary, the elevator voice reminder system of this utility model sets up a relay logic judgment module and a voice broadcast module connected together. The relay logic judgment module is connected to the elevator's power supply, over / under voltage protector, and light curtain respectively to detect whether the power supply has failed, detect the start / stop of the over / under voltage protector, and detect whether the light curtain is blocked. The relay logic judgment module directly controls the voice broadcast module to operate based on the detection results, thereby calling the corresponding pre-stored voice for broadcast, expanding the types of elevator voice broadcasts. All logic judgments are implemented through the relay logic judgment module, which can realize power outage alarm, voltage fluctuation alarm, and door blocking behavior alarm without connecting to the elevator's control board, expanding the functionality of the elevator voice reminder system. The logic judgment and voice broadcast control process does not rely on program control, reducing the failure rate and having low requirements for protocol compatibility. Moreover, by detecting the start / stop of the over / under voltage protector, it can monitor whether the power supply voltage fluctuates, realizing the integration of multiple types of reminder functions.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An elevator voice reminder system, characterized in that, Installed on the elevator, it includes a relay logic judgment module and a voice broadcast module. The relay logic judgment module is connected to the voice broadcast module, the elevator's power supply, over / under voltage protector, and light curtain, respectively, and is used to control the voice broadcast module to work based on the detected working status of the power supply, the over / under voltage protector, and the light curtain.

2. The elevator voice reminder system according to claim 1, characterized in that, The relay logic judgment module includes a first intermediate relay, a second intermediate relay, and a third intermediate relay. The first intermediate relay is connected to the feedback terminal of the light curtain, the second intermediate relay is connected to the power supply, the input terminal of the over / under voltage protector is connected to the power supply, and the output terminal of the over / under voltage protector is connected to the third intermediate relay. The normally closed contact of the third intermediate relay and the normally open contact of the second intermediate relay are connected in series to form a first broadcast link, which is connected to the voice broadcast module.

3. The elevator voice reminder system according to claim 2, characterized in that, The relay logic judgment module further includes a first time relay. The coil of the first intermediate relay is connected to the feedback terminal of the light curtain. The normally open contact of the first intermediate relay is connected in series with the coil of the first time relay to form a first delay trigger link. The first delay trigger link is connected to the power supply. The normally open contact of the first time relay is connected to the voice broadcast module. The normally open contact of the first time relay is connected in parallel with the first broadcast link.

4. The elevator voice reminder system according to claim 3, characterized in that, The delay range of the first time relay is 10 to 20 seconds.

5. The elevator voice reminder system according to claim 2, characterized in that, The relay logic judgment module further includes a fourth intermediate relay. The coil of the fourth intermediate relay is connected to the elevator's power-off and re-leveling device. The normally open contact of the fourth intermediate relay is connected to the voice broadcast module. The normally open contact of the fourth intermediate relay is connected in parallel with the first broadcast link. The normally closed contact of the second intermediate relay is connected in series with the normally closed contact of the fourth intermediate relay to form a second broadcast link. The second broadcast link is connected to the voice broadcast module and is connected in parallel with the first broadcast link.

6. The elevator voice reminder system according to claim 5, characterized in that, The relay logic judgment module further includes a second time relay. The coil of the second time relay is connected in series with the normally closed contact of the second intermediate relay to form a second delay link. The second delay link is connected to the elevator's emergency battery. The emergency battery is connected to the power input terminal of the voice broadcast module. The normally closed contact of the second time relay is electrically connected between the emergency battery and the power input terminal of the voice broadcast module.

7. The elevator voice reminder system according to claim 6, characterized in that, The delay range of the second time relay is 2 to 5 minutes.

8. The elevator voice reminder system according to claim 1, characterized in that, The light curtain is model DAA24591C5.

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