CN117228470A - Elevator landing door lock open-circuit positioning detection circuit and detection method - Google Patents
Elevator landing door lock open-circuit positioning detection circuit and detection method Download PDFInfo
- Publication number
- CN117228470A CN117228470A CN202311202707.6A CN202311202707A CN117228470A CN 117228470 A CN117228470 A CN 117228470A CN 202311202707 A CN202311202707 A CN 202311202707A CN 117228470 A CN117228470 A CN 117228470A
- Authority
- CN
- China
- Prior art keywords
- door lock
- circuit
- landing door
- elevator
- elevator landing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses an elevator landing door lock open-circuit positioning detection circuit and a detection method. The door lock open circuit positioning detection circuit comprises a plurality of door lock open circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board; each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel; the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit. The landing door lock open-circuit positioning detection device correspondingly connected with the landing door lock of the elevator can rapidly judge the specific position of the landing door lock open-circuit of the elevator, and achieve the purposes of rapid investigation and rapid positioning.
Description
Technical Field
The invention belongs to the technical field of elevator landing door lock detection, and particularly relates to an elevator landing door lock open-circuit positioning detection circuit and a detection method.
Background
Elevators have become an integral part of people's life as important vehicles in modern cities. An elevator has at least one landing door set in each landing, each landing door set having a landing door lock. At present, all landing door locks of an elevator are connected in series to form a loop, voltage is applied to two ends of the loop, and if the landing door lock loop is conducted, current is formed in the loop. The elevator main control board detects the current in the loop through devices such as an optocoupler and the like to judge whether the landing door lock loop is conducted or not. Generally, an elevator can be operated normally only when a landing door lock loop is on.
Under normal conditions, when the landing door is closed, the landing door lock can be closed and conducted, but due to the fact that contacts of the landing door lock are abnormal or the mechanical structure is abnormal, the landing door lock can not be normally conducted when the landing door is closed. At this time, it is necessary to check which layer of door locks is opened. The existing detection technology is manual layer-by-layer maintenance.
The applicant finds that in the existing technology for detecting the open circuit of the elevator landing door lock, the specific position of the open circuit of the elevator landing door lock cannot be timely and accurately detected, so that the maintenance efficiency is low.
Disclosure of Invention
The invention aims to solve the problems of low detection efficiency and long detection time when a door lock loop of the existing elevator landing door lock is disconnected, and provides a circuit and a method for detecting the disconnection and positioning of the elevator landing door lock.
In order to solve the problems, the invention is realized according to the following technical scheme:
according to one aspect of the invention, an elevator landing door lock open-circuit positioning detection circuit is provided, and the door lock open-circuit positioning detection circuit comprises a plurality of door lock open-circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board;
each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel;
the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit.
Furthermore, the door lock disconnection positioning detection device is connected with the elevator main control board through a CAN bus interface circuit.
Further, the door lock open circuit positioning detection device comprises a safety relay, a safety relay driving circuit, a safety relay contact feedback detection circuit and an MCU;
a group of contacts of the safety relay are connected with two ends of the elevator landing door lock in parallel;
and the output end of the safety relay contact feedback detection circuit is connected with the MCU.
Further, the door lock disconnection positioning detection device further comprises a setting circuit, the setting circuit is connected with the MCU, and the setting circuit is an 8-bit dial switch.
Further, the door lock open circuit positioning detection circuit further comprises an optocoupler;
the elevator landing door lock, the power supply, the resistor, the elevator main control board and the optocoupler are connected in series to form a loop;
and the signal output end of the optical coupler is connected with the elevator main control board.
Further, the power supply is an alternating current power supply or a direct current power supply.
According to another aspect of the present invention, there is provided a method for detecting open-circuit positioning of a door lock of an elevator landing door, the method comprising:
the elevator main control board sends a disconnection instruction to the door lock disconnection positioning detection device which is correspondingly connected with the elevator landing door lock to be detected, wherein the disconnection instruction is a group of contacts for disconnecting the safety relay which is correspondingly connected with the elevator landing door lock to be detected;
the elevator main control board sends a closing instruction to the door lock disconnection positioning detection device correspondingly connected with the door locks of the remaining elevator landing doors, wherein the closing instruction is used for closing a group of contacts of the safety relay correspondingly connected with the door locks of the remaining elevator landing doors.
If the elevator main control board detects that the door lock open-circuit positioning detection circuit is conducted through the optocoupler, the elevator landing door lock to be detected is conducted;
otherwise, the elevator landing door lock to be detected is disconnected.
The invention provides an elevator landing door lock open-circuit positioning detection circuit and a detection method, wherein the door lock open-circuit positioning detection circuit comprises a plurality of door lock open-circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board; each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel; the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit. The landing door lock open-circuit positioning detection device correspondingly connected with the landing door lock of the elevator can rapidly judge the specific position of the landing door lock open-circuit of the elevator, and achieve the purposes of rapid investigation and rapid positioning.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
The attached drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a circuit schematic diagram of an elevator landing door lock open circuit positioning detection circuit of the present invention;
fig. 2 is a schematic block diagram of the door lock open-circuit positioning detection device of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Under normal conditions, when the landing door is closed, the landing door lock can be closed and conducted, but due to abnormal landing door lock contacts or abnormal mechanical structure, the landing door lock can not be normally conducted when the landing door is closed, and at the moment, the situation that the landing door lock is specifically opened needs to be checked. Under the existing technical conditions, the inspection and maintenance work time is long because the inspection and maintenance work time is only carried out manually layer by layer. It is therefore desirable to develop a device that can quickly detect and locate which layer of door locks are open.
Therefore, the technical scheme of the invention aims to improve the detection efficiency of elevator landing door lock open-circuit positioning detection.
The door lock open-circuit positioning detection circuit comprises a plurality of door lock open-circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board;
each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel;
the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit.
As shown in fig. 1, fig. 1 is a schematic circuit diagram of an elevator landing door lock open-circuit positioning detection circuit according to the present invention. The power supply, the resistor, the elevator main control board and the elevator landing door locks (landing door lock 1, landing door locks 2 and … and landing door lock n) are connected in series to form a door lock open circuit positioning detection circuit. Wherein, each elevator landing door lock (landing door lock 1, landing door locks 2, …, landing door lock n) is connected with a door lock open circuit positioning detection device (detection device 1, detection devices 2, …, detection device n) in parallel.
Furthermore, the door lock disconnection positioning detection device is connected with the elevator main control board through a CAN bus interface circuit.
As shown in fig. 1, the elevator main control board is connected with the door lock open circuit positioning detection device through a CAN bus interface circuit, and supplies power to the door lock open circuit positioning detection device.
Further, the door lock open circuit positioning detection device comprises a safety relay, a safety relay driving circuit, a safety relay contact feedback detection circuit and an MCU;
a group of contacts of the safety relay are connected with two ends of the elevator landing door lock in parallel;
and the output end of the safety relay contact feedback detection circuit is connected with the MCU.
As shown in FIG. 1, the door lock open circuit positioning detection device comprises a safety relay, an MCU and related circuits. Wherein a set of contacts of the safety relay are connected in parallel with both ends of the elevator landing door locks (landing door lock 1, landing door locks 2, …, landing door lock n). The related circuit comprises a safety relay driving circuit and a safety relay contact feedback detection circuit, wherein the output end of the safety relay contact feedback detection circuit is connected with the MCU, so that whether contact adhesion exists in the safety relay can be detected. Under the condition of contact adhesion, the door lock disconnection positioning detection device CAN actively send fault information to the elevator main control board through the CAN bus to prompt an elevator maintenance person to replace the corresponding door lock disconnection positioning detection device.
Further, the door lock disconnection positioning detection device further comprises a setting circuit, the setting circuit is connected with the MCU, and the setting circuit is an 8-bit dial switch.
As shown in fig. 1, the related circuits in the door lock open circuit positioning detection device further comprise a setting circuit, and the setting circuit is connected with the MCU in the door lock open circuit positioning detection device. The setting circuit is an 8-bit dial switch, and CAN set CAN communication address codes of the door lock open circuit positioning detection device, so that each detection device is guaranteed to have unique address information.
Further, the door lock open circuit positioning detection circuit further comprises an optocoupler;
the elevator landing door lock, the power supply, the resistor, the elevator main control board and the optocoupler are connected in series to form a loop;
and the signal output end of the optical coupler is connected with the elevator main control board.
As shown in fig. 1, the door lock open circuit positioning detection circuit of the present invention further includes an optocoupler. The door lock open-circuit positioning detection circuit formed by connecting the power supply and the elevator landing door locks in series is also connected with an optocoupler in series, and the signal output end of the optocoupler is connected with the control unit of the elevator main control board.
Under the condition that the elevator landing door locks are closed, the optocoupler device works, and signals that the elevator landing door locks are in a conducting state are sent to a control unit of an elevator main control board to prompt that an elevator landing door lock loop is not disconnected.
Further, the power supply is an alternating current power supply or a direct current power supply.
An elevator landing door lock open circuit positioning detection method, the detection method comprising:
the elevator main control board sends a disconnection instruction to the door lock disconnection positioning detection device which is correspondingly connected with the elevator landing door lock to be detected, wherein the disconnection instruction is a group of contacts for disconnecting the safety relay which is correspondingly connected with the elevator landing door lock to be detected;
the elevator main control board sends a closing instruction to the door lock disconnection positioning detection device correspondingly connected with the door locks of the remaining elevator landing doors, wherein the closing instruction is used for closing a group of contacts of the safety relay correspondingly connected with the door locks of the remaining elevator landing doors.
If the elevator main control board detects that the door lock open-circuit positioning detection circuit is conducted through the optocoupler, the elevator landing door lock to be detected is conducted;
otherwise, the elevator landing door lock to be detected is disconnected.
The invention discloses a method for detecting the open circuit of a door lock of an elevator landing door, which is applied to a door lock open circuit positioning detection circuit, and comprises the following specific steps (which are exemplified by combining with fig. 1 and 2):
when the elevator landing door lock to be detected is the landing door lock 1, the elevator main control board instructs the detection device 1 (MCU) to disconnect the safety relay contacts connected in parallel at two ends of the landing door lock 1 through CAN communication (the disconnection and the closing states of the safety relay are controlled and fed back by the safety relay driving circuit and the safety relay contact feedback detection circuit), instructs other detection devices (namely detection devices 2, … and detection device n) to close the safety relay contacts connected in parallel on the landing door lock (corresponding to the landing door locks 2, … and the landing door lock n), and the elevator main control board detects whether the landing door lock loop (door lock disconnection positioning detection circuit) is connected through an optical coupler, if so, the landing door lock 1 is indicated to be connected, otherwise, the landing door lock 1 is disconnected.
The invention provides an elevator landing door lock open-circuit positioning detection circuit and a detection method, wherein the door lock open-circuit positioning detection circuit comprises a plurality of door lock open-circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board; each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel; the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit. The landing door lock open-circuit positioning detection device correspondingly connected with the landing door lock of the elevator can rapidly judge the specific position of the landing door lock open-circuit of the elevator, and achieve the purposes of rapid investigation and rapid positioning.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. The elevator landing door lock open circuit positioning detection circuit is characterized by comprising a plurality of door lock open circuit positioning detection devices, a plurality of elevator landing door locks, a power supply, a resistor and an elevator main control board;
each elevator landing door lock is connected with a door lock open-circuit positioning detection device in parallel;
the elevator landing door lock, the power supply, the resistor and the elevator main control board are connected in series to form a door lock open-circuit positioning detection circuit.
2. The elevator landing door lock open circuit location detection circuit of claim 1, further comprising:
the door lock disconnection positioning detection device is connected with the elevator main control board through a CAN bus interface circuit.
3. The elevator landing door lock open circuit positioning detection circuit according to claim 1, wherein the door lock open circuit positioning detection device comprises a safety relay, a safety relay driving circuit, a safety relay contact feedback detection circuit and an MCU;
a group of contacts of the safety relay are connected with two ends of the elevator landing door lock in parallel;
and the output end of the safety relay contact feedback detection circuit is connected with the MCU.
4. The elevator landing door lock open circuit positioning detection circuit according to claim 3, wherein the door lock open circuit positioning detection device further comprises a setting circuit, the setting circuit is connected with the MCU, and the setting circuit is an 8-bit dial switch.
5. The elevator landing door lock open circuit positioning detection circuit of claim 1, wherein the door lock open circuit positioning detection circuit further comprises an optocoupler;
the elevator landing door lock, the power supply, the resistor, the elevator main control board and the optocoupler are connected in series to form a loop;
and the signal output end of the optical coupler is connected with the elevator main control board.
6. The elevator landing door lock open circuit location detection circuit of claim 1, comprising:
the power supply is an alternating current power supply or a direct current power supply.
7. The detection method for the open-circuit positioning of the elevator landing door lock is characterized by comprising the following steps of:
the elevator main control board sends a disconnection instruction to the door lock disconnection positioning detection device which is correspondingly connected with the elevator landing door lock to be detected, wherein the disconnection instruction is a group of contacts for disconnecting the safety relay which is correspondingly connected with the elevator landing door lock to be detected;
the elevator main control board sends a closing instruction to the door lock disconnection positioning detection device correspondingly connected with the door locks of the remaining elevator landing doors, wherein the closing instruction is used for closing a group of contacts of the safety relay correspondingly connected with the door locks of the remaining elevator landing doors.
8. The method for detecting the open-circuit positioning of the door lock of the elevator landing door according to claim 7, comprising:
if the elevator main control board detects that the door lock open-circuit positioning detection circuit is conducted through the optocoupler, the elevator landing door lock to be detected is conducted;
otherwise, the elevator landing door lock to be detected is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311202707.6A CN117228470A (en) | 2023-09-18 | 2023-09-18 | Elevator landing door lock open-circuit positioning detection circuit and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311202707.6A CN117228470A (en) | 2023-09-18 | 2023-09-18 | Elevator landing door lock open-circuit positioning detection circuit and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117228470A true CN117228470A (en) | 2023-12-15 |
Family
ID=89087480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311202707.6A Pending CN117228470A (en) | 2023-09-18 | 2023-09-18 | Elevator landing door lock open-circuit positioning detection circuit and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117228470A (en) |
-
2023
- 2023-09-18 CN CN202311202707.6A patent/CN117228470A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305620B (en) | A kind of breaker closing control loop template monitoring system | |
| CN108394775B (en) | Elevator safety system and safety control method | |
| CN101305439B (en) | Safety switching apparatus for the failsafe disconnection of an electrical load | |
| CN103249663B (en) | Prevent the elevator protection safety device of short circuit | |
| CN108341312B (en) | Automatic door opening and closing inspection | |
| CN101048331B (en) | Elevator testing system | |
| JP2016041631A (en) | Interface unit, conveying system, and method | |
| CN105967016B (en) | A kind of monitoring device of band-type brake detection switch | |
| CN105189292B (en) | Using the safety circuit watch-dog of alternating voltage | |
| CN104981421A (en) | Battery-assisted safety circuit-monitoring system | |
| CN111968292B (en) | Device and method for preventing subway emergency door and end door from being opened abnormally | |
| CN108328446B (en) | Elevator door loop detection device | |
| CN109292571A (en) | A kind of synchronous and asynchronous elevator functional universal safe circuit board | |
| CN110759198B (en) | Elevator door lock switch short circuit detection method, system, equipment and storage medium | |
| CN208732408U (en) | Door lock of elevator intelligent monitor system | |
| CN117228470A (en) | Elevator landing door lock open-circuit positioning detection circuit and detection method | |
| CN210714273U (en) | Subway shielded door monitoring devices | |
| CN206705428U (en) | A kind of elevator safety loop detects circuit | |
| CN207932818U (en) | Elevator door loop detection circuit | |
| CN109132813B (en) | Elevator door circuit and short circuit detection method thereof | |
| CN104076209A (en) | Detection device for motor | |
| CN209890029U (en) | But elevator lock bypass of lock short circuit test | |
| CN102099979A (en) | Method for performing a self-test by a residual current operated device, and residual current operated device | |
| CN104685749B (en) | Circuit device with inverter | |
| CN105800412A (en) | Elevator fault recognition control circuit and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |