CN201506659U - An elevator circuit control system with unmanned non-stop floors - Google Patents

Abstract

The utility model relates to an elevator circuit control system, in particular to an improved elevator circuit control system. The elevator circuit control system of the present utility model has an unmanned non-stop elevator circuit, including a position sensing circuit connected to a PLC controller, a door opening and closing control circuit, a control panel button circuit, a display driving circuit and a circuit of the car motor control part. Wherein, the PLC controller is also connected to an infrared sensing circuit. The infrared sensing circuit includes an infrared probe, an amplifying circuit, a comparison output circuit connected in series in sequence, and a power circuit connected to the above-mentioned modules. The utility model adopts the above technical scheme, and installs an additional infrared detection system on each floor of the existing elevator. The technology is simple and the cost is low. With the assistance of the infrared detection system, the elevator (especially the public type) can reduce multiple idle stops, so It will reduce the energy consumption of the elevator, and the people in the elevator can also reduce the time and space consumption caused by the stop.

Description

An elevator circuit control system with unmanned non-stop floors

technical field

The utility model relates to an elevator circuit control system, in particular to an improved elevator circuit control system.

Background technique

At present, the vertical elevator runs through the up and down buttons on each floor and the buttons on each floor in the elevator car, sensors on each floor, programmable logic controller (plc) and various electronic and electrical components to form a control system to control the operation of the elevator motor. The steps for the existing elevator to complete a call response are as follows: (1) After the elevator detects the call signal from the lobby or the car, it compares the floor signal with the floor signal where the car is located, and selects the direction of operation through the direction selection module. (2) The elevator drives the DC motor to drive the car to move by dragging the speed regulation module. The movement speed of the car should be changed from low speed to medium speed and then to high speed, and run to the deceleration point at high speed. (3) When the elevator detects the deceleration point signal generated by the floor detection point of the target floor, the elevator enters the deceleration state, changes from medium speed to low speed, and runs at low speed until it stops at the leveling point. (4) After leveling, open the door after a certain delay until it touches the travel switch in place; then close the door after a certain delay until it touches the travel switch in place for closing the door. The elevator control system always displays the floor where the car is located in real time.

At present, as long as someone presses the up or down button on a certain floor when the elevator is running, the elevator will stop opening the door when it runs to its position and in the same direction. In many occasions in daily life, especially in public places, users often leave and discard after pressing the button. As a result, unnecessary idle stops of the elevator in operation are caused. Every unnecessary idle stop will waste a lot of starting power and delay the running time.

Utility model content

Therefore, the problem of waste of electric energy and time is caused for automatic vertical elevators (especially public elevators) idle stop. The utility model installs an infrared monitoring component on the existing operation control system. Carry out infrared monitoring of human body on each floor. When a user on a certain floor presses the elevator button and leaves without using it, after infrared detection detects no human body infrared signal, the utility model connects with the automatic control circuit and transmits no user signal to instruct the operation control system Cancel the stop order for this floor. Thereby eliminating the problem of empty parking and improving the operating efficiency of the elevator.

The technical scheme of the utility model is:

An elevator circuit control system with no one on the floor, including a position sensing circuit connected to a PLC controller, a door opening and closing control circuit, a control panel button circuit, a display driving circuit and a circuit of the car motor control part. Wherein, the PLC controller is also connected to an infrared sensing circuit.

Further, the infrared sensing circuit includes an infrared probe, an amplifier circuit and a comparison output circuit connected in series in sequence, and a power supply circuit connected to the above-mentioned modules.

Furthermore, the infrared probe is set on the elevator control panel on the floor.

Still further, the infrared probe is arranged between the display area and the button area on the elevator control panel.

Further, the circuit of the car motor control part includes:

D/A conversion circuit, the input is connected to the PLC controller, the starting circuit, the output is connected to the motor frequency conversion speed regulation control circuit, and the output and output are connected to the fault diagnosis circuit;

Motor frequency conversion speed regulation control circuit, the input is connected to the D/A conversion circuit, and the output is connected to the car motor and the waveform sampling circuit;

Waveform sampling circuit, the input is connected to the motor frequency conversion speed regulation control circuit, and the output is connected to the A/D conversion circuit;

A/D conversion circuit, the input is connected to the waveform sampling circuit, and the output is connected to the PLC controller;

The startup circuit, the input is connected to the PLC controller, the output is connected to the D/A conversion circuit, and the input and output are connected to the fault diagnosis circuit;

The fault diagnosis circuit, the input and output are connected to the D/A conversion circuit and the start-up circuit.

The utility model adopts the above technical scheme, and installs an additional infrared detection system on each floor of the existing elevator. The technology is simple, the cost is low, and the infrared detection technology is mature and widely used. With the assistance of the infrared detection system, the elevator (especially the public type) can reduce multiple empty stops, which will reduce the energy consumption of the elevator, and the people in the elevator can also reduce the time and space consumption caused by stopping. An energy-saving and time-saving project.

Description of drawings

Fig. 1 is the overall circuit block diagram of the utility model;

Fig. 2 is the circuit block diagram of infrared sensing circuit 113 of the present utility model;

Fig. 3 is a schematic diagram of the position of the infrared probe of the present invention.

Detailed ways

The utility model is further described now in conjunction with accompanying drawing and specific embodiment.

Referring to shown in Fig. 1, the elevator circuit control system of the present utility model is unmanned nonstop floor, comprises the position sensor circuit 109 that is connected to PLC controller 101, switch door control circuit 110, control panel button circuit 111, display driving circuit 112 and the circuit of the car motor control part. Wherein, the PLC controller 101 is also connected to an infrared sensing circuit 113 .

The circuit of the car motor control part includes:

D/A conversion circuit 102, the input is connected to the described PLC controller 101, the starting circuit 106, the output is connected to the motor frequency conversion speed regulation control circuit 103, and the output is connected to the fault diagnosis circuit 107;

The motor frequency conversion speed regulation control circuit 103, the input is connected to the D/A conversion circuit 102, and the output is connected to the car motor 108 and the waveform sampling circuit 104;

Waveform sampling circuit 104, the input is connected to the motor frequency conversion speed regulation control circuit 103, and the output is connected to the A/D conversion circuit 105;

A/D conversion circuit 105, the input is connected to the described waveform sampling circuit 104, and the output is connected to the described PLC controller 101;

Start circuit 106, the input is connected to the PLC controller 101, the output is connected to the D/A conversion circuit 102, and the input and output are connected to the fault diagnosis circuit 107;

The fault diagnosis circuit 107 has its input and output connected to the D/A conversion circuit 102 and the start-up circuit 106 .

As shown in FIG. 2 , the infrared sensing circuit 113 includes an infrared probe 1131 , an amplifier circuit 1132 , a comparison output circuit 1133 connected in series in sequence, and a power supply circuit 1134 connected to the above-mentioned modules. Each module is powered by the power supply circuit 1134 , and the comparison output circuit 1133 outputs the detection signal to the port of the PLC controller 101 .

Referring to Fig. 3, the infrared probe 1131 is set on the elevator control panel 20 of the floor. The infrared probe 1131 is arranged between the display area 11 and the key area 12 on the elevator control panel 20 . If there are multiple elevators on the floor, such as elevator A and elevator B, the detection ranges of the infrared probes 1131 on the two elevator control panels 20 must overlap to avoid undetectable missed detection areas.

When the elevator is running, the PLC controller 101 detects the signal of the position sensor 109 to determine the current position of the car, and calculates the moving distance of the car according to the floor pressed by the key circuit 111 of the control panel. 1. The stages of uniform speed operation and deceleration operation are realized by the circuit of the control part of the car motor controlled by the PLC controller 101 . During this period, the PLC controller 101 is constantly detecting the input signal of the infrared sensor circuit 113. If there is no one signal input, the PLC controller 101 controls the car not to stay on this floor.

Although the utility model has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that, without departing from the spirit and scope of the utility model defined by the appended claims, changes in form and details may be made. Making various changes to the utility model is within the protection scope of the utility model.

Claims (5)

1. A kind of elevator circuit control system with unmanned non-stop floors, comprising a position sensing circuit (109) connected to a PLC controller (101), a door opening and closing control circuit (110), a control panel button circuit (111), a display The drive circuit (112) and the circuit of the car motor control part are characterized in that: the PLC controller (101) is also connected to an infrared sensing circuit (113). 2. The elevator circuit control system according to claim 1, characterized in that: said infrared sensing circuit (113) comprises an infrared probe (1131), an amplifier circuit (1132) and an infrared probe (1132) connected in series successively. A comparison output circuit (1133), and a power supply circuit (1134) connected to the above modules. 3. The circuit control system of an elevator with unmanned non-stop floor according to claim 2, characterized in that: the infrared probe (1131) is arranged on the elevator control panel (20) of the floor. 4. The elevator circuit control system with unmanned non-stop floors according to claim 3, characterized in that: the infrared probe (1131) is arranged on the display area (11) and the button area on the elevator control panel (20) (12). 5. The elevator circuit control system with unmanned non-stop floors according to claim 1, characterized in that: the circuit of the car motor control part comprises: D/A conversion circuit (102), the input is connected to the described PLC controller (101), the starting circuit (106), the output is connected to the motor frequency conversion speed regulation control circuit (103), and the output is connected to the fault diagnosis circuit (107) ); The motor frequency conversion speed regulation control circuit (103), the input is connected to the described D/A conversion circuit (102), and the output is connected to the car motor (108) and the waveform sampling circuit (104); The waveform sampling circuit (104), the input is connected to the motor frequency conversion speed regulation control circuit (103), and the output is connected to the A/D conversion circuit (105); A/D conversion circuit (105), the input is connected to the described waveform sampling circuit (104), and the output is connected to the described PLC controller (101); The startup circuit (106), the input is connected to the PLC controller (101), the output is connected to the D/A conversion circuit (102), and the input and output are connected to the fault diagnosis circuit (107); The fault diagnosis circuit (107) is connected to the D/A conversion circuit (102) and the starting circuit (106) for input and output.

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