Safety prompt control system and method for escalator

Abstract

The present invention relates to a safety prompt control system and method for an escalator, which is used to provide safety prompts to at least two escalators at the same time, including a main control device and a safety prompt device arranged on each escalator, wherein the main control device has at least two groups of ports corresponding to each escalator, and the ports in the same group respectively include: a first signal input port, connected to the power line of the corresponding escalator for receiving the power-on signal of the escalator; a second signal input port, used to receive the state signal of the corresponding escalator operation; a first signal output port, connected to the safety prompt device of the corresponding escalator, the main control device sends a corresponding voice prompt signal to the corresponding escalator through the first signal output port according to the power-on signal and state signal of the corresponding escalator; a power port, connected to the power line of the corresponding escalator, used to obtain power to supply power to the safety prompt control system. Multiple escalators can broadcast voice prompts synchronously to solve the problem of mutual interference in voice prompts of multiple escalators.

Description

Technical Field

[0001] The present invention relates to the field of elevator control, and in particular to a safety prompt control system and method for an escalator. Background Art

[0002] In recent years, with the rapid economic development, the substantial increase in residents' income level, and the increase in the number of floating population in cities, a large number of new subways, light rails and large shopping malls have been built on a large scale. Along with this demand, escalators or moving walkways are increasingly widely used in these places. In order to facilitate the efficient passage of people, most shopping malls, subways and light rails use parallel escalators or moving walkways in operation. The safety of their use is highly valued. When passengers take an escalator, the correct way to ride is to hold the handrail tightly and stand on the right, but most passengers often ignore this method when taking an elevator, and safety accidents of escalators are common.

[0003] In order to remind passengers, most escalators or sidewalks are currently equipped with a voice prompt system for each escalator to remind passengers to take the escalator in a standardized manner. If there is only one escalator or the distance between escalators is far, it is fine to install a voice prompt system for each escalator. However, if there are two or more escalators in parallel or the distance between escalators is close, the voice prompt effect is not ideal. Too loud voice volume will interfere with each other, and too low voice volume will directly affect the passengers' hearing effect. Moreover, the cost of each set is high, and the voice synchronization is very poor, which directly affects the voice prompt effect and even becomes environmental noise. Summary of the invention

[0004] Based on this, it is necessary to provide a safety prompt control system and method for escalators that can provide safety prompts while avoiding interference between escalators when multiple escalators are set too close to each other during voice prompts in order to solve the above problems.

[0005] An escalator safety prompt control system, used for simultaneously providing safety prompts to at least two escalators, comprises a main control device and safety prompt devices arranged on each of the escalators, wherein the main control device has at least two groups of ports corresponding to each escalator, and the ports in the same group respectively include:

[0006] A first signal input port, connected to a power line of a corresponding escalator for receiving a power-on signal of the escalator;

[0007] The second signal input port is used to receive a status signal corresponding to the escalator operation;

[0008] A first signal output port is connected to a safety prompt device of a corresponding escalator, and the main control device sends a corresponding sound prompt signal to the corresponding escalator through the first signal output port according to the power-on signal and the status signal of the corresponding escalator;

[0009] The power port is connected to the power line of the corresponding escalator and is used to obtain power to supply power to the safety prompt control system.

[0010] Optionally, the installation prompt device has a first prompt unit that gives a corresponding sound prompt after receiving the sound prompt signal.

[0011] Optionally, the main control device further has a second signal output port corresponding to each of the escalators one by one, and the corresponding installation prompt device further has a second prompt unit;

[0012] The main control device sends a corresponding light prompt signal to the corresponding escalator through the second signal output port according to the status signal corresponding to the escalator, and the second prompt unit performs a corresponding light prompt according to the light prompt signal.

[0013] Optionally, the main control device has a monitoring unit and a storage unit connected to each of the first signal input ports;

[0014] The monitoring unit is used to monitor the current and voltage of each power line when it is powered on;

[0015] The storage unit is used to store the time when each power line is powered on.

[0016] Optionally, the main control device also has a communication port;

[0017] The main control device sends a corresponding feedback signal to a host computer through the communication port according to the power-on signal and the status signal corresponding to each escalator.

[0018] Optionally, an anti-reverse diode is provided between each of the first signal input ports and the power supply line of the corresponding escalator.

[0019] Optionally, the first signal input port includes multiple ports, which are respectively used to receive multiple status signals including a stop signal, an idle signal, a maintenance signal, an uplink signal and a downlink signal.

[0020] The present application also provides a safety prompt control method for an escalator, comprising performing the following control according to a power-on signal and a status signal of a power supply line of each escalator:

[0021] According to the power-on signal time of each escalator, a power reserve signal is sent to the power supply port corresponding to the earliest powered-on power line, and a power cut-off signal is sent to the power supply ports corresponding to other power supply lines;

[0022] The real-time operation status of each escalator is judged according to the power-on signal and the status signal, and a corresponding sound prompt signal is sent to a plurality of escalators whose real-time operation status is upward or downward, so that the escalators which are both upward or downward can give a sound prompt at the same time;

[0023] According to the state signal, a corresponding light prompt signal is sent to the escalator whose real-time running state is stopped, ascending, or descending.

[0024] Optionally, judging the real-time operating status of each escalator according to the power-on signal and the status signal specifically includes:

[0025] The status signal includes a stop signal, an idle signal, a maintenance signal, an uplink signal and a downlink signal;

[0026] If the stop signal does not exist, and the power-on signal exists, then the maintenance signal is judged;

[0027] If the maintenance signal is absent and the power-on signal is present, the idle signal is judged;

[0028] If the idle signal is absent and the power-on signal is present, the real-time operation state of the corresponding escalator is judged to be normal, and the up signal and the down signal are judged;

[0029] If the up signal is present, a first sound prompt signal is sent to the corresponding escalator; or

[0030] If the down signal is present, a second sound prompt signal is sent to the corresponding escalator.

[0031] Optionally, a safety prompt control system based on the above-mentioned escalator is implemented.

[0032] The above escalator safety prompt control system sends voice prompt signals to multiple escalators through multiple ports of a main control device at the same time, so that multiple escalators can broadcast voice prompts synchronously to solve the problem of mutual interference of voice prompts of multiple escalators. In addition, multiple escalators can be controlled simultaneously by one safety control device, which slightly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A module structure diagram of a safety prompt control system in one embodiment;

[0034] Figure 2 A schematic diagram of the steps of a safety prompt control method in one embodiment;

[0035] Figure 3 A schematic diagram of a process for retaining the earliest powered-on power supply line in one embodiment;

[0036] Figure 4 A schematic diagram of determining the earliest powered-on circuit according to a power-on sequence in one embodiment;

[0037] Figure 5 A schematic diagram of the steps of performing judgment according to various signals in one embodiment;

[0038] Figure 6 FIG. 4 is a schematic diagram of steps for performing determination according to various signals in another embodiment. DETAILED DESCRIPTION

[0039] like Figure 1 As shown, the present application provides an escalator safety prompt control system for providing safety prompts to at least two escalators at the same time, including a main control device and a safety prompt device arranged on each escalator, the main control device having at least two groups of ports corresponding to one escalator respectively, and the ports in the same group respectively include:

[0040] A first signal input port, connected to a power line of a corresponding escalator for receiving a power-on signal of the escalator;

[0041] The second signal input port is used to receive a status signal corresponding to the escalator operation;

[0042] The first signal output port is connected to the safety prompt device of the corresponding escalator, and the main control device sends a corresponding sound prompt signal to the corresponding escalator through the first signal output port according to the power-on signal and status signal of the corresponding escalator;

[0043] The power port is connected to the power line of the corresponding escalator to obtain power to supply power to the safety prompt control system.

[0044] In this embodiment, the main control device has multiple ports for collecting corresponding information of at least two escalators. The first input port is connected to the power line of the corresponding escalator power input for collecting the power-on signal of the escalator, which is used to determine whether the escalator is in a powered state. The second input port is connected to the control device of the corresponding escalator to collect the operating status information of the escalator.

[0045] After the main control device performs logical judgment on the power-on signal and status signal of each escalator, it sends corresponding sound prompt signals to the safety prompt device of each escalator through multiple first signal output ports to provide safety prompts to passengers riding the escalator. In this way, multiple escalators share a set of main control devices for safety prompts, which effectively reduces equipment costs. After the main control device performs logical judgment on each signal, it can send the same sound prompt signal to escalators in the same operating state, so that multiple escalators can broadcast synchronously, so that passengers can clearly hear the safety prompts to avoid safety accidents caused by passengers riding the escalator in an irregular manner.

[0046] In addition, the main control device is also provided with multiple power supply ports, and the power supply lines of each escalator supply power to the entire safety prompt control system through the corresponding power supply ports. Such multi-line power supply solves the problem that when a single circuit is used for power supply, if the circuit fails, the safety prompt control system cannot continue to work. In the case of multi-line power supply, when the current power supply line fails, other power supply lines can be used for power supply to ensure that the safety prompt control system can work normally.

[0047] In this embodiment, the safety prompt control system further includes a safety prompt device installed on each escalator for providing safety prompts to passengers on each escalator.

[0048] Specifically, the safety prompt device has a first prompt unit that performs a corresponding sound prompt after receiving a sound prompt signal. The first prompt unit prompts the passenger in the form of voice broadcasting.

[0049] In one embodiment, the first prompting unit may be a speaker.

[0050] In this embodiment, the main control device also has a second signal output port corresponding to each escalator one by one, and the corresponding installation prompt device also has a second prompt unit. The main control device sends a corresponding light prompt signal to the corresponding escalator through the second signal output port according to the corresponding power-on signal and status signal of the escalator, and the second prompt unit performs a corresponding light prompt according to the light prompt signal.

[0051] After the main control device performs logical processing according to the power-on signal and status signal of each escalator, it will also send a corresponding light prompt signal to the safety prompt device of each escalator, and the second prompt unit will display the real-time operating status of the elevator to the passengers.

[0052] In one embodiment, the second prompt unit may be a light button that indicates the running status of the elevator.

[0053] In this embodiment, the main control device has a monitoring unit and a storage unit connected to each first signal input port. The monitoring unit is used to monitor the current and voltage of each power line when it is powered on, and the storage unit is used to store the power-on time of each power line. By monitoring the power input voltage and current signals on each power line, and according to the power-on time sequence of each escalator, it can be determined that a certain power line is the earliest power-on line.

[0054] Among them, the storage unit can use a random access memory (RAM), and the timing trigger set in the monitoring unit will record the trigger time of each power line, that is, the power-on time, and store the time in the storage unit. After processing and comparing the trigger time in the storage unit, the earliest power line that supplies power to the safety prompt control system can be obtained, and the main control device will understand to cut off the remaining power lines, and only retain the earliest power line to power the system. When the power line cannot supply power to the safety prompt control system due to a fault or other reasons, the main control device can select other power lines to power the system according to the early or late power-on time to ensure that the system can work normally.

[0055] In this embodiment, the main control device also has a communication port, and the main control device sends corresponding feedback signals to the upper computer through the communication port according to the power-on signal and status signal corresponding to each escalator. When the main control device determines that there may be a fault in the elevator circuit based on the power-on signal and status signal of the escalator, it can send a feedback signal with a warning function to the upper computer through the communication port, so that maintenance personnel can promptly check the hidden dangers of the fault, thereby ensuring the safety of the escalator control circuit.

[0056] In this embodiment, in order to prevent the power supply lines for input power from being connected in series and causing damage to the main control device and each input power supply, an anti-reverse diode is provided between each first signal input port and the power supply line of the corresponding escalator.

[0057] In this embodiment, the first signal input port includes a plurality of ports, which are respectively used to receive a plurality of status signals including a stop signal, an idle signal, a maintenance signal, an up signal, and a down signal. That is to say, each escalator has a plurality of first model input ports for receiving corresponding multiple status signals, and by judging and processing according to the above-mentioned various status models and power-on status, a sound prompt signal or a light prompt signal is obtained accordingly.

[0058] In one embodiment, the main control device may be a single chip microcomputer with multiple input and output ports, and the single chip microcomputer has an independent power supply unit.

[0059] The above escalator safety reminder control system sends safety reminders to multiple escalators at the same time through a main control device to avoid interference when multiple escalators are giving safety reminders separately, and the application has multiple power supply ports that are powered by power lines of multiple escalators respectively to avoid the problem that a single power line fails to supply power and causes the entire system to fail to work. And the system can also be used in pedestrian crossings that also need to provide installation reminders to passers-by.

[0060] like Figure 2As shown, the present application also provides a safety prompt control method for an escalator, including performing the following control according to the power-on signal and status signal of the power supply line of each escalator:

[0061] Step S201, according to the power-on signal time of each escalator, a power reserve signal is sent to the power supply port corresponding to the earliest powered-on power line, and a power cut-off signal is sent to the power supply ports corresponding to other power lines;

[0062] Step S202, judging the real-time operating status of each escalator according to the power-on signal and the status signal, and sending corresponding sound prompt signals to multiple escalators whose real-time operating status is up or down, so that the escalators that are both up or down will give sound prompts at the same time;

[0063] Step S203, sending a corresponding light prompt signal to the escalator whose real-time running status is stopped, upward, or downward according to the status signal.

[0064] In step S201, the power-on time of each escalator power supply circuit is first determined, and the earliest powered-on power supply circuit is obtained. This circuit is retained to power the device, while other power supplies are disconnected. The specific process is as follows: Figure 3 shown.

[0065] Specifically, each input power supply line is monitored, and the power supply line that is powered on the earliest is obtained according to the power-on triggering time sequence of each circuit. Figure 4 shown.

[0066] In step S202, the status signals corresponding to each escalator include a stop signal, an idle signal, a maintenance signal, an up signal, and a down signal. The stop signal and the maintenance signal are judged in turn. If neither of them exists, the up and down signals are judged. Figure 5 shown.

[0067] When making a judgment, the system first judges one escalator and then the next one, and finally sends a voice prompt signal to the escalator that is judged to be going up or down, so that the escalators in the same operating state can be broadcast synchronously. For example, after the judgment, if there are three escalators going up, the three escalators can broadcast synchronously: "The escalator is going up, please hold the handrail and stand on the right" and other voice prompts. When there are escalators going up and down after the judgment, the voice prompts are given in turn, so as to avoid the interference caused by the voice prompts of each escalator, resulting in the passengers not being able to hear the prompts clearly and thus not playing the role of prompts.

[0068] In addition, a variety of different voice prompt contents can be preset in advance to meet the needs of different scenarios.

[0069] In one embodiment, judging according to the power-on signal and the state signal of the corresponding escalator includes: the state signal includes a stop signal, a leisure signal, a maintenance signal, an up signal and a down signal;

[0070] If there is no stop signal and there is a power-on signal, the maintenance signal is judged.

[0071] Specifically, if the stop signal is present and the power-on signal is absent, no voice prompt signal is sent to the corresponding escalator;

[0072] If the stop signal is on and the power-on signal is on, no voice prompt signal will be sent to the corresponding escalator;

[0073] If there is no stop signal and no power-on signal, no voice prompt signal will be sent to the corresponding escalator;

[0074] If there is no stop signal and there is a power-on signal, the maintenance signal is judged. If there is a maintenance signal, no voice prompt signal is sent to the corresponding escalator;

[0075] If the maintenance signal is absent and the power-on signal is present, the leisure signal is judged;

[0076] If the idle signal is absent and the power-on signal is present, the real-time operation state of the corresponding escalator is judged to be normal, and the up signal and the down signal are judged;

[0077] If the up signal is present, a first sound prompt signal is sent to the corresponding escalator; or

[0078] If the down signal is present, a second sound prompt signal is sent to the corresponding escalator.

[0079] It should be noted that when both up and down signals are collected at the same time, if the circuit is faulty, no voice prompt signal will be sent to the corresponding escalator, and feedback can be given to the upper computer;

[0080] Among them, the first sound prompt signal can be of multiple types, including voice 1, voice 2, or voice 3, and the second sound prompt signal can also be of multiple types, including voice 4, voice 5, or voice 6.

[0081] Among them, Voice 1, Voice 2, Voice 3, Voice 4, Voice 5, and Voice 6 are all different safety prompt contents.

[0082] According to the above logic judgment, the power-on signal and status signal of each escalator are judged in turn. When all the judgments are completed, the control system agrees to broadcast the simultaneous voice to achieve voice sound source synchronization and eliminate mutual interference between sound sources.

[0083] In step S203, a light prompt signal may be sent to the corresponding escalator according to the power-on signal of each escalator, such as Figure 6 As shown, the specific judgment steps are as follows:

[0084] If the stop signal is on, a corresponding light indication signal is sent to the corresponding escalator;

[0085] If there is no up signal, the up and down signals are judged. If there is an up signal, the corresponding light indication signal is sent to the corresponding escalator; if there is a down signal, the corresponding light indication signal is sent to the corresponding escalator.

[0086] The status signal of each escalator is judged according to the above judgment logic, and a light indication signal is outputted to each escalator separately.

[0087] The light indication signals corresponding to various operating states can be set according to the safety prompt device installed on the escalator. For example, the light prompt part of the safety prompt device consists of two triangular light keys placed up and down. When the escalator is in the upward state, the upper light key is on, that is, the upper indicator light outputs state 1, and the lower light tube key is not lit, that is, the lower indicator light outputs state 2. When the escalator is in the downward state, the opposite is true. When the escalator is in the stopped state, both the upper and lower light keys are on, that is, both the upper and lower indicator lights output state 1.

[0088] The escalator safety control method of the present application is implemented based on the above-mentioned escalator safety control device, so that the safety control device of the present application can simultaneously control multiple escalators to synchronously broadcast voice and output light indications according to the operating status of each escalator, effectively avoiding environmental noise and interference caused by asynchronous sound broadcast, thereby reducing the safety hazards of the escalator when it is in practical use, and effectively reducing the cost of safety settings.

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A safety prompt control method for an escalator, characterized in that: The escalator safety prompt control system is implemented, and the escalator safety prompt control system is used to provide safety prompts to at least two escalators at the same time, including a main control device and a safety prompt device arranged on each of the escalators, and the main control device has at least two groups of ports corresponding to one escalator respectively, and the ports in the same group respectively include: A first signal input port, connected to a power line of a corresponding escalator for receiving a power-on signal of the escalator; The second signal input port is used to receive a status signal corresponding to the escalator operation; A first signal output port is connected to a safety prompt device of a corresponding escalator, and the main control device sends a corresponding sound prompt signal to the corresponding escalator through the first signal output port according to the power-on signal and the status signal of the corresponding escalator; A power port, connected to the power line of the corresponding escalator, for obtaining power to supply power to the safety prompt control system; The escalator safety prompt control method includes performing the following control according to the power-on signal and status signal of the power supply circuit of each escalator: According to the power-on signal time of each escalator, a power reserve signal is sent to the power supply port corresponding to the earliest powered-on power line, and a power cut-off signal is sent to the power supply ports corresponding to other power supply lines; The real-time operating status of each escalator is judged according to the power-on signal and the status signal, and corresponding sound prompt signals are sent to multiple escalators whose real-time operating status is upward or downward, so that the escalators that are both upward or downward will give sound prompts at the same time.

2. The escalator safety prompt control method according to claim 1, characterized in that: The safety prompt device comprises a first prompt unit for giving a corresponding sound prompt after receiving the sound prompt signal.

3. The escalator safety prompt control method according to claim 2, characterized in that: The main control device also has a second signal output port corresponding to each of the escalators, and the corresponding safety prompt device also has a second prompt unit; The main control device sends a corresponding light prompt signal to the corresponding escalator through the second signal output port according to the status signal corresponding to the escalator, and the second prompt unit performs a corresponding light prompt according to the light prompt signal.

4. The escalator safety prompt control method according to claim 3, characterized in that: The main control device comprises a monitoring unit and a storage unit connected to each of the first signal input ports; The monitoring unit is used to monitor the current and voltage of each power line when it is powered on; The storage unit is used to store the time when each power line is powered on.

5. The escalator safety prompt control method according to claim 4, characterized in that: The main control device also has a communication port; The main control device sends a corresponding feedback signal to a host computer through the communication port according to the power-on signal and the status signal corresponding to each escalator.

6. The escalator safety prompt control method according to claim 1, characterized in that: An anti-reverse diode is arranged between each of the first signal input ports and the power supply line of the corresponding escalator.

7. The escalator safety prompt control method according to claim 1, characterized in that: The first signal input ports include multiple ones, which are respectively used to receive multiple status signals including stop signals, idle signals, maintenance signals, uplink signals and downlink signals.

8. The escalator safety prompt control method according to claim 3, characterized in that: According to the state signal, a corresponding light prompt signal is sent to the escalator whose real-time running state is stopped, ascending, or descending.

9. The escalator safety prompt control method according to claim 7, characterized in that: Judging the real-time operating status of each escalator according to the power-on signal and the status signal specifically includes: The status signal includes a stop signal, an idle signal, a maintenance signal, an uplink signal and a downlink signal; If the stop signal does not exist, and the power-on signal exists, then the maintenance signal is judged; If the maintenance signal is absent and the power-on signal is present, the idle signal is judged; If the idle signal is absent and the power-on signal is present, the real-time operation state of the corresponding escalator is judged to be normal, and the up signal and the down signal are judged; If the up signal is present, a first sound prompt signal is sent to the corresponding escalator; or If the down signal is present, a second sound prompt signal is sent to the corresponding escalator.

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