Energy-saving multi-line integrated anti-explosion elevator control system

Abstract

The invention discloses an energy-saving multi-line integrated explosion-proof elevator control system which comprises a main PLC and an auxiliary PLC, the main PLC is provided with a first wire inlet terminal, a first wire outlet terminal and a fault feedback point, and the auxiliary PLC is provided with a second wire inlet terminal, a second wire outlet terminal and a fault access point. A fault detection module is connected between the fault feedback point and the fault access point, a conversion module is connected to the first wire inlet terminal, a signal conversion module is connected between the first wire outlet terminal and the second wire inlet terminal, and a fourth wire inlet terminal is arranged on the signal conversion module. The elevator control system is composed of the main PLC and the auxiliary PLC, when the main PLC breaks down, the auxiliary PLC can replace the main PLC to control the elevator to continue to operate, it is guaranteed that the serious consequence that people are trapped in the elevator does not exist, the UPS is connected to the auxiliary PLC, power can be continuously supplied to the auxiliary PLC for a period of time, and it is guaranteed that the auxiliary PLC has enough electricity to replace the main PLC to work.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof elevator technology, specifically to an energy-saving multi-line integrated explosion-proof elevator control system. Background Technology

[0002] Explosion-proof elevators are elevators with explosion-proof properties. Existing explosion-proof elevators use a single-system control system, meaning that if this system malfunctions, the elevator cannot continue to operate and requires repair before it can be used normally again. However, because explosion-proof elevators are used in potentially hazardous environments with high safety requirements, if people are trapped in the elevator and cannot escape technically, it could lead to serious consequences. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an energy-saving multi-line integrated explosion-proof elevator control system, which solves the problem that existing elevators are controlled by a single system, and the elevator cannot operate when the control circuit fails.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving multi-line integrated explosion-proof elevator control system, comprising a main PLC and a secondary PLC. The main PLC is provided with a first incoming terminal, a first outgoing terminal, and a fault feedback point. The secondary PLC is provided with a second incoming terminal, a second outgoing terminal, and a fault access point. A fault detection module is connected between the fault feedback point and the fault access point. A conversion module is connected to the first incoming terminal. A signal conversion module is connected between the first outgoing terminal and the second incoming terminal. The signal conversion module is provided with a fourth incoming terminal. The conversion module is provided with a third incoming terminal and a third outgoing terminal. A terminal block is connected between the third outgoing terminal and the fourth incoming terminal.

[0005] Preferably, a UPS power supply is connected to the secondary PLC, and a first electrical control switch is connected between the secondary PLC and the signal conversion module.

[0006] Preferably, a second electrical control switch and a third electrical control switch are respectively connected between the conversion module, the terminal block, and the main PLC.

[0007] Preferably, the control terminals of the first, second, and third electronic control switches are connected to the auxiliary PLC.

[0008] This invention provides an energy-saving multi-line integrated explosion-proof elevator control system, which has the following advantages: This elevator control system consists of a main PLC and a secondary PLC. When the main PLC fails, the secondary PLC can take over the control of the elevator to continue running, ensuring that there is no serious consequence of people being trapped in the elevator. The secondary PLC is connected to a UPS power supply, which can continuously supply power to the secondary PLC for a period of time, ensuring that it has enough power to take over the work of the main PLC. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the present invention.

[0010] In the diagram: 1. Main PLC; 2. Secondary PLC; 3. Fault detection module; 4. UPS power supply; 5. First electrical control switch; 6. Signal conversion module; 7. Terminal block; 8. Second electrical control switch; 9. Conversion module; 10. Third electrical control switch. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] Please see Figure 1 This invention provides a technical solution: an energy-saving multi-line integrated explosion-proof elevator control system, including a main PLC1 and a secondary PLC2. The main PLC1 is provided with a first incoming terminal, a first outgoing terminal, and a fault feedback point. The secondary PLC2 is provided with a second incoming terminal, a second outgoing terminal, and a fault access point. A fault detection module 3 is connected between the fault feedback point and the fault access point. A conversion module 9 is connected to the first incoming terminal. A signal conversion module 6 is connected between the first outgoing terminal and the second incoming terminal. The signal conversion module 6 is provided with a fourth incoming terminal. The conversion module 9 is provided with a third incoming terminal and a third outgoing terminal. A terminal block 7 is connected between the third outgoing terminal and the fourth incoming terminal. Under normal system operation, the third electrical control switch 10 is normally closed, while the first electrical control switch 5 and the second electrical control switch 8 are normally open. The circuit connections in this technical solution are all conventional technical methods and are common technical knowledge in the field of circuit connection. Therefore, there is no need to describe in detail the specific circuit connection methods between each component.

[0013] Furthermore, a UPS power supply 4 is connected to the auxiliary PLC2, and a first electrical control switch 5 is connected between the auxiliary PLC2 and the signal conversion module 6.

[0014] Furthermore, a second electrical control switch 8 and a third electrical control switch 10 are respectively connected between the conversion module 9, the terminal block 7, and the main PLC 1.

[0015] Furthermore, the control terminals of the first electronic control switch 5, the second electronic control switch 8, and the third electronic control switch 10 are connected to the auxiliary PLC2.

[0016] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0017] Example: During operation, if the fault detection module 3 detects that the main PLC1 cannot control the elevator properly, it will send a signal to the auxiliary PLC2 to take over control. The auxiliary PLC2 will then send signals to the first control switch 5, the second control switch 8, and the third control switch 10, causing the third control switch 10 to open and the first control switch 5 and the second control switch 8 to close. At this time, the auxiliary PLC2 will completely take over the control of the elevator from the main PLC1. When the fault detection module 3 detects a partial fault in the main PLC1, it will take over part of the main PLC1's control system through the signal conversion module 6. In this case, the elevator is controlled simultaneously by the main PLC1 and the auxiliary PLC2, and the part controlled by the auxiliary PLC2 is the part of the main PLC1 that is malfunctioning. It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0018] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving multi-line integrated explosion-proof elevator control system comprising a main PLC (1) and a sub-PLC (2), characterized in that, The main PLC (1) is provided with a first incoming terminal and a first outgoing terminal and a fault feedback point, the auxiliary PLC (2) is provided with a second incoming terminal and a second outgoing terminal and a fault access point, the fault feedback point and the fault access point are connected with a fault detection module (3), the first incoming terminal is connected with a conversion module (9), the first outgoing terminal and the second incoming terminal are connected with a signal conversion module (6), the signal conversion module (6) is provided with a fourth incoming terminal, the conversion module (9) is provided with a third incoming terminal and a third outgoing terminal, the third outgoing terminal and the fourth incoming terminal are connected with a terminal block (7).

2. The energy-saving multi-line integrated anti-explosion elevator control system according to claim 1, characterized in that, The auxiliary PLC (2) is connected with a UPS power supply (4), and the auxiliary PLC (2) and the signal conversion module (6) are connected with a first electric control switch (5).

3. The energy-saving multi-line integrated anti-explosion elevator control system according to claim 2, characterized in that, The conversion module (9), the terminal block (7) and the main PLC (1) are respectively connected with a second electric control switch (8) and a third electric control switch (10).

4. The energy-saving multi-line integrated anti-explosion elevator control system according to claim 1, characterized in that, The control ends of the first electric control switch (5), the second electric control switch (8) and the third electric control switch (10) are connected to the auxiliary PLC (2).

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