Elevator wireless monitoring system

Abstract

The invention discloses an elevator wireless monitoring system which comprises an elevator monitoring cloud platform, an on-site elevator monitoring system and a mobile terminal. The on-site elevator monitoring system and the mobile terminal are both in wireless communication connection with the elevator monitoring cloud platform. The on-site elevator monitoring system comprises an elevator controller, an elevator data collector, a low-voltage monitoring module, a high-voltage monitoring module, a power supply module and a wireless communication module. The elevator controller is in wireless communication connection with the elevator monitoring cloud platform through the wireless communication module. The power supply module comprises a high-voltage fuse, a rectifier bridge and a voltage reduction and stabilization unit. The elevator wireless monitoring system solves the problem that in the prior art, the elevator monitoring condition cannot be remotely checked.

Description

Technical Field

[0001] The invention relates to the field of elevator monitoring, and in particular to an elevator wireless monitoring system. Background Art

[0002] In order to realize elevator control operation, it is necessary to design an elevator monitoring system.

[0003] In the prior art, the elevator monitoring system includes: an elevator controller, an elevator lock unit, a door opening limit unit, a human body sensing unit, an upper limit unit, a lower limit unit, a safety circuit unit, a door lock circuit and a brake coil. The elevator lock unit, the door opening limit unit, the human body sensing unit, the upper limit unit, the lower limit unit, the safety circuit unit, the door lock circuit and the brake coil are all connected to the elevator controller. The main purpose of the upper limit unit is to ensure that the elevator can correctly detect the upper limit switch signal during the ascent process, so as to stop safely at the top floor; the main purpose of the lower limit unit is to ensure that the elevator can correctly detect the lower limit switch signal during the descent process, so as to stop safely at the lowest floor; the elevator lock unit is used to detect whether the floor door can be locked; the human body sensing unit is used to detect whether there is someone at the floor door; the function of the safety circuit unit is to monitor the safety status of the elevator during the operation of the elevator; the main function of the door lock circuit is to ensure that the elevator cannot start when the floor door and the car door are not completely closed; the function of the brake coil is to control the brake action.

[0004] Although monitoring can be achieved to a certain extent, there are still disadvantages: remote monitoring cannot be achieved, which makes management work troublesome. Summary of the invention

[0005] The present invention provides an elevator wireless monitoring system to solve the problem in the prior art that the elevator monitoring situation cannot be viewed remotely.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The invention discloses an elevator wireless monitoring system, comprising: an elevator monitoring cloud platform, an on-site elevator monitoring system and a mobile terminal; the on-site elevator monitoring system and the mobile terminal are both wirelessly connected to the elevator monitoring cloud platform; the on-site elevator monitoring system comprises: an elevator controller, an elevator data collector, a low-voltage monitoring module, a high-voltage monitoring module, a power supply module and a wireless communication module, and the elevator controller is wirelessly connected to the elevator monitoring cloud platform through the wireless communication module; the power supply module comprises: a high-voltage fuse, a rectifier bridge and a buck regulator unit, the input end of the high-voltage fuse is used to connect to the 220V mains voltage, the output end of the high-voltage fuse is the high-voltage output end of the power supply module, the output end of the high-voltage fuse is connected to the input end of the rectifier bridge, the output end of the rectifier bridge is connected to the input end of the buck regulator unit, and the output end of the buck regulator unit is the low-voltage output end of the power supply module; the low-voltage monitoring module comprises: an elevator locking unit, a door opening limit unit, a human The elevator data collector comprises a plurality of low-voltage access units, and the elevator lock unit, the door opening limit unit, the human body sensing unit, the upper limit unit and the lower limit unit are connected to a low-voltage access unit input end, and the low-voltage access unit output end is connected to a first group of input ends in the elevator controller; the high-voltage access unit comprises a plurality of high-voltage access units, and the safety circuit unit, the door lock circuit and the brake coil are connected to a high-voltage access unit input end, and the high-voltage access unit output end is connected to a second group of input ends in the elevator controller.

[0008] The high-voltage access unit includes: a photocoupler U1, a resistor R1 and a resistor R2. The anode of the diode in the photocoupler U1 is connected to the safety circuit unit detection position, the door lock circuit detection position or the brake coil detection position. The cathode of the diode in the photocoupler U1 is grounded through the resistor R1. The base of the transistor in the photocoupler U1 is connected to the first output end of the elevator controller. The emitter of the transistor in the photocoupler U1 is grounded through the resistor R2. The collector of the transistor in the photocoupler U1 is connected to the low-voltage output end of the power supply module.

[0009] Preferably, the high voltage output end of the power supply module is connected to the positive electrode of the charge and discharge capacitor C1, and the negative electrode of the charge and discharge capacitor C1 is grounded.

[0010] Preferably, a shorting capacitor C2 and a shorting resistor R3 are installed next to the charging and discharging capacitor C1, and the shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1 through a controllable switch. The controllable switch operates under the control of the elevator controller, and the controllable switch is used to control whether the shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1.

[0011] Preferably, the controllable switch is a relay RL1, and the relay RL1 is connected to the second control terminal of the elevator controller through a driving circuit.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting up the on-site elevator monitoring system and mobile terminals to be wirelessly connected to the elevator monitoring cloud platform, it is possible to remotely view the monitoring status through the elevator monitoring cloud platform, and also through mobile terminals such as mobile phones, thereby improving convenience.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the circuit block diagram of the elevator wireless monitoring system.

[0016] Figure 2 This is the circuit diagram of the high voltage access unit.

[0017] Figure 3 It is the circuit diagram of the charging and discharging capacitor C1 and the short-circuited capacitor C2. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 3As shown, the present invention discloses an elevator wireless monitoring system, including: an elevator monitoring cloud platform, an on-site elevator monitoring system and a mobile terminal; the on-site elevator monitoring system and the mobile terminal are both wirelessly connected to the elevator monitoring cloud platform; the on-site elevator monitoring system includes: an elevator controller, an elevator data collector, a low-voltage monitoring module, a high-voltage monitoring module, a power supply module and a wireless communication module, and the elevator controller is wirelessly connected to the elevator monitoring cloud platform through the wireless communication module; the power supply module includes: a high-voltage fuse, a rectifier bridge and a buck regulator unit, the input end of the high-voltage fuse is used to connect to the mains 220V voltage, the output end of the high-voltage fuse is the high-voltage output end of the power supply module, the output end of the high-voltage fuse is connected to the input end of the rectifier bridge, the output end of the rectifier bridge is connected to the input end of the buck regulator unit, and the output end of the buck regulator unit is the low-voltage output end of the power supply module; the low-voltage monitoring module includes: an elevator locking unit, a door opening limit unit , human body sensing unit, upper limit unit and lower limit unit, the low-voltage output end of the power supply module supplies power to the power supply ends of the elevator lock unit, door opening limit unit, human body sensing unit, upper limit unit and lower limit unit; the high-voltage monitoring module includes: a safety circuit unit, a door lock circuit and a brake coil, and the high-voltage output end of the power supply module supplies power to the power supply ends of the safety circuit unit, the door lock circuit and the brake coil; the elevator data collector includes: a low-voltage access unit and a high-voltage access unit, there are several low-voltage access units, any one of the elevator lock unit, door opening limit unit, human body sensing unit, upper limit unit and lower limit unit is connected to a low-voltage access unit input end, and the output end of the low-voltage access unit is connected to the first group of input ends in the elevator controller; there are several high-voltage access units, the safety circuit unit, the door lock circuit and the brake coil are connected to a high-voltage access unit input end, and the output end of the high-voltage access unit is connected to the second group of input ends in the elevator controller.

[0020] The high voltage access unit includes: a photocoupler U1, a resistor R1 and a resistor R2, the anode of the diode in the photocoupler U1 is connected to the safety circuit unit detection position, the door lock circuit detection position or the brake coil detection position, the cathode of the diode in the photocoupler U1 is grounded through the resistor R1, the base of the transistor in the photocoupler U1 is connected to the first output end of the elevator controller, the emitter of the transistor in the photocoupler U1 is grounded through the resistor R2, and the collector of the transistor in the photocoupler U1 is connected to the low voltage output end of the power supply module. Since the elevator controller can only input low voltage, when there is a photocoupler U1, the high voltage circuit formed by the detection position, the diode and the resistor R1 can be isolated from the low voltage circuit formed by the transistor resistor R2 to avoid damage to the elevator controller.

[0021] The high-voltage output end of the power supply module is connected to the positive electrode of the charge-discharge capacitor C1, and the negative electrode of the charge-discharge capacitor C1 is grounded to achieve high-voltage charging and discharging.

[0022] A shorting capacitor C2 and a shorting resistor R3 are installed next to the charging and discharging capacitor C1. The shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1 through a controllable switch. The controllable switch operates under the control of the elevator controller. The controllable switch is used to control whether the shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1.

[0023] The controllable switch is a relay RL1, which is connected to the second control terminal of the elevator controller through a drive circuit. One end of the short-circuit resistor R3 and the negative electrode of the short-circuit capacitor C2 are both connected to the negative electrode of the charge-discharge capacitor C1, and the other end of the short-circuit resistor R3 and the positive electrode of the short-circuit capacitor C2 are connected to the positive electrode of the charge-discharge capacitor C1 through a switch in the relay RL1. Since the charge-discharge capacitor C1 is a high-voltage charging capacitor, it is sometimes necessary to quickly discharge the charge-discharge capacitor C1, so that the discharge is achieved under the control of the elevator controller by designing the short-circuit capacitor C2, the short-circuit resistor R3 and the relay RL1.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Elevator wireless monitoring system, characterized in that: include: Elevator monitoring cloud platform, on-site elevator monitoring system and mobile terminal; The on-site elevator monitoring system and mobile terminals are wirelessly connected to the elevator monitoring cloud platform; The on-site elevator monitoring system includes: an elevator controller, an elevator data collector, a low-voltage monitoring module, a high-voltage monitoring module, a power supply module, and a wireless communication module. The elevator controller is wirelessly connected to the elevator monitoring cloud platform through the wireless communication module; The power supply module includes: a high-voltage fuse, a rectifier bridge and a step-down voltage regulator unit. The input end of the high-voltage fuse is used to connect to the 220V mains voltage. The output end of the high-voltage fuse is the high-voltage output end of the power supply module. The output end of the high-voltage fuse is connected to the input end of the rectifier bridge. The output end of the rectifier bridge is connected to the input end of the step-down voltage regulator unit. The output end of the step-down voltage regulator unit is the low-voltage output end of the power supply module. The low-voltage monitoring module includes: an elevator lock unit, a door opening limit unit, a human body sensing unit, an upper limit unit and a lower limit unit. The low-voltage output end of the power supply module supplies power to the power supply ends of the elevator lock unit, the door opening limit unit, the human body sensing unit, the upper limit unit and the lower limit unit. The high-voltage monitoring module includes: a safety circuit unit, a door lock circuit and a brake coil. The high-voltage output end of the power supply module supplies power to the safety circuit unit, the door lock circuit and the power supply end of the brake coil. The elevator data collector includes: a low-voltage access unit and a high-voltage access unit. There are several low-voltage access units. Any one of the elevator lock unit, door opening limit unit, human body sensing unit, upper limit unit and lower limit unit is connected to an input end of a low-voltage access unit, and the output end of the low-voltage access unit is connected to the first group of input ends in the elevator controller; there are several high-voltage access units. The safety circuit unit, door lock circuit and brake coil are all connected to an input end of a high-voltage access unit, and the output end of the high-voltage access unit is connected to the second group of input ends in the elevator controller.

2. The elevator wireless monitoring system according to claim 1, characterized in that: The high-voltage access unit includes: a photocoupler U1, a resistor R1 and a resistor R2. The anode of the diode in the photocoupler U1 is connected to the safety circuit unit detection position, the door lock circuit detection position or the brake coil detection position. The cathode of the diode in the photocoupler U1 is grounded through the resistor R1. The base of the transistor in the photocoupler U1 is connected to the first output end of the elevator controller. The emitter of the transistor in the photocoupler U1 is grounded through the resistor R2. The collector of the transistor in the photocoupler U1 is connected to the low-voltage output end of the power supply module.

3. The elevator wireless monitoring system according to claim 1, characterized in that: The high voltage output end of the power supply module is connected to the positive electrode of the charge and discharge capacitor C1, and the negative electrode of the charge and discharge capacitor C1 is grounded.

4. The elevator wireless monitoring system according to claim 3, characterized in that: A shorting capacitor C2 and a shorting resistor R3 are installed next to the charging and discharging capacitor C1. The shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1 through a controllable switch. The controllable switch operates under the control of the elevator controller. The controllable switch is used to control whether the shorting capacitor C2 and the shorting resistor R3 short-circuit the charging and discharging capacitor C1.

5. The elevator wireless monitoring system according to claim 4, characterized in that: The controllable switch is a relay RL1, and the relay RL1 is connected to the second control terminal of the elevator controller through a driving circuit.

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