CN113942904A - Elevator safety control method, system, equipment and computer readable storage medium - Google Patents
Elevator safety control method, system, equipment and computer readable storage medium Download PDFInfo
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- CN113942904A CN113942904A CN202010671775.7A CN202010671775A CN113942904A CN 113942904 A CN113942904 A CN 113942904A CN 202010671775 A CN202010671775 A CN 202010671775A CN 113942904 A CN113942904 A CN 113942904A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides an elevator safety control method, a system, equipment and a computer readable storage medium, wherein the elevator safety control method comprises the following steps: in the running process of the lift car, a position reading device arranged on the lift car reads signals of a position calibration device arranged on a well to obtain position information; a first electronic safety plate arranged on the lift car judges whether the lift car runs abnormally according to the position information; and the first electronic safety board sends abnormal car running information to a second electronic safety board installed in the machine room through a communication bus when the car runs abnormally. According to the embodiment of the invention, the common position sensor is combined with the first electronic safety plate based on Pessral, and the safety function is realized by replacing a safety position sensor, so that the overall cost of the car position safety system is reduced, the safety function redundancy is avoided, the system safety architecture is clear, and the authentication is simple.
Description
Technical Field
The embodiment of the invention relates to the field of elevators, in particular to an elevator safety control method, system, equipment and a computer readable storage medium.
Background
With the development of cities, high-rise buildings rise frequently, and the use of elevators is more and more popular. The elevator is a device which vertically moves among different floors in a shaft, a car door is arranged on an elevator car, a shaft door is correspondingly arranged on the wall of the shaft and leads to each floor, and passengers can get in and out of the car by opening the car door and the shaft door.
During normal operation of the elevator car, the control system needs to know the position information of the car. In order to ensure control precision and well system simplification, linear position sensors are increasingly applied. In addition, the linear position sensor used in the elevator system is integrated with a safety function while acquiring the position information of the car, and can perform information interaction with the car roof. However, the safe position sensor has the problems of complicated use and authentication and high price.
Disclosure of Invention
The embodiment of the invention provides a method, a system and equipment for elevator safety control and a computer readable storage medium, aiming at the problems of complicated use authentication and high price of the safety position sensor.
The technical scheme for solving the technical problems in the embodiment of the invention is to provide an elevator safety control method, which comprises the following steps:
in the running process of the lift car, a position reading device arranged on the lift car obtains position information by reading a signal of a position calibration device arranged on a well;
a first electronic safety plate arranged on the lift car judges whether the lift car runs abnormally according to the position information;
and the first electronic safety board sends abnormal car running information to a second electronic safety board installed in the machine room through a communication bus when the car runs abnormally.
Preferably, the communication bus is a secure serial bus, and the method further comprises:
the first electronic safety board obtains the state of the car roof safety switch, and sends the state of the car roof safety switch to the second electronic safety board through the safety serial bus.
Preferably, the first electronic safety plate mounted on the car judges whether the car runs abnormally according to the position information, and the method includes:
the first electronic safety plate calculates the running speed of the car according to the position information;
and when the running speed of the car exceeds a preset value, the first electronic safety plate judges that the car runs abnormally.
Preferably, the first electronic safety plate mounted on the car judges whether the car runs abnormally according to the position information, and the method includes:
the first electronic safety plate acquires the running curve of the car according to the running speed and the position information of the car;
the first electronic safety plate judges that the car runs abnormally when the running curve of the car is not matched with a preset curve.
The embodiment of the invention also provides an elevator safety control system, which comprises a position calibration device, a position reading device, a first electronic safety board and a second electronic safety board, wherein the first electronic safety board and the second electronic safety board are connected through a communication bus;
the position calibration device is arranged in a shaft, the position reading device is arranged on a car, and the position reading device obtains position information by reading signals of the position calibration device arranged in the shaft in the running process of the car;
the first electronic safety plate is installed on the car, the first electronic safety plate judges whether the car runs abnormally according to the position information acquired by the position reading device, and sends abnormal car running information to the second electronic safety plate installed in the machine room through a communication bus when the car runs abnormally.
Preferably, the communication bus is a secure serial bus:
the first electronic safety board is further connected with the plurality of car top safety switches to acquire the states of the plurality of car top safety switches, and the first electronic safety board sends the states of the car top safety switches to the second electronic safety board through the safety serial bus.
Preferably, the position reading device is connected with the first electronic security plate through a signal cable; alternatively, the position reading device is integrated into the first electronic security pane.
Preferably, the position calibration device is a magnetic grid ruler, and the position reading device is a magnetic grid ruler reading head; or, the position calibration device is a grating ruler, and the position reading device is a grating ruler reading head.
The embodiment of the invention also provides elevator safety control equipment, which comprises a position reading device and a first electronic safety plate; the position reading device comprises a first memory and a first processor, wherein the first memory stores a computer program which can run on the first processor; the first electronic security pane comprises a second memory and a second processor, the second memory having stored therein a computer program executable on the second processor; the first processor and the second processor, when executing the computer program, implement the steps of the elevator safety control method as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the elevator safety control method are implemented as described above.
According to the elevator safety control method, the elevator safety control system, the elevator safety control equipment and the computer readable storage medium, the common position sensor is combined with the first electronic safety board based on the Pessral, the safety function is realized by replacing a safety position sensor, the overall cost of the car position safety system is reduced, the safety function redundancy is avoided, and the system safety architecture is clear and the authentication is simple.
Drawings
Fig. 1 is a flow chart of an elevator safety control method provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of an elevator system using an elevator safety control method provided by an embodiment of the present invention;
fig. 3 is a schematic flow chart of determining whether the operation of the car is abnormal in the elevator safety control method provided by the embodiment of the invention;
fig. 4 is a schematic flow chart illustrating a process of determining whether an operation of a car is abnormal in an elevator safety control method according to another embodiment of the present invention;
fig. 5 is a schematic diagram of an elevator safety control system provided by an embodiment of the present invention;
fig. 6 is a schematic diagram of an elevator safety control method according to another embodiment of the present invention;
fig. 7 is a schematic diagram of an elevator safety control apparatus provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The English full name of Pessral is Programmable Electric Systems in Safety Related Applications for Lifts. At present, the elevator control system based on pessaral has started to gradually replace the traditional safety devices, which allow the elevator to be improved in both safety and comfort by electronic and software control. The elevator safety control method, the elevator safety control system, the elevator safety control equipment and the computer readable storage medium of the embodiment of the invention control the elevator based on Pessral and realize corresponding safety functions.
Fig. 1 is a schematic flow chart of an elevator safety control method provided by an embodiment of the present invention, which can be applied to an elevator system and implement a corresponding safety function. The elevator safety control method of the embodiment can be operated in an elevator control system, and the method comprises the following steps:
step S11: in the running process of the elevator car, the position reading device arranged on the elevator car obtains position information by reading signals of the position calibration device arranged on the hoistway. The position information is specifically height information.
As shown in fig. 2, the position calibration device 21 is disposed in the hoistway along the height direction, that is, the position calibration device 21 is used for realizing height calibration. The position reading device 22 can be mounted on the top of the car 20 or at another position, and obtains the height of the car 20 in the hoistway by reading the corresponding calibration signal of the position calibration device 21. That is, the position reading device 22 and the position calibration device 21 cooperate to realize the function of a position sensor (linear position sensor). For example, the position reading device 22 generates a signal each time a marking position of the position calibration device 21 is passed, which signal constitutes the position information.
Specifically, the position calibration device 21 may adopt a magnetic grid ruler, and correspondingly, the position reading device 22 adopts a magnetic grid ruler reading head; alternatively, the position calibration device 21 may employ a grating scale, and accordingly, the position reading device 22 employs a grating scale reading head. Of course, in practical applications, the position reading device 22 and the position calibration device 21 may also be combined by other devices that can achieve the straight line position acquisition.
Step S12: the first electronic safety plate installed in the car 20 determines whether the operation of the car 2 is abnormal based on the position information (i.e., the position information generated by the position reading device 22 by reading the signal of the position calibration device 21).
The first electronic safety board is based on pessarl, that is, the first electronic safety board meets the requirements of pessarl, and the first electronic safety board can be specifically mounted on the top of the car and is independent from the car roof.
Step S13: when the cage runs abnormally, the first electronic safety board sends cage running abnormal information to a second electronic safety board installed in the machine room through a communication bus.
The second electronic safety board is also based on PESSRAL, that is, the second electronic safety board meets the requirements of PESSRAL, and the second electronic safety board can be specifically installed in the machine room and is independent of a machine room control board in the machine room (the machine room control board is used for executing elevator control logic and realizing elevator operation control, such as driving a traction motor to drive a car to move upwards or downwards, controlling a motor of a door machine to open and close a car door, and the like). The second electronic safety plate is matched with the first electronic safety plate to realize the safety function of the elevator system.
According to the elevator safety control method, the common position sensor is combined with the first electronic safety plate based on Pessral, the safety function is realized by replacing a safety position sensor, the overall cost of the car position safety system is reduced, the safety function redundancy is avoided, and the system safety architecture is clear and the authentication is simple. Namely, the position sensor composed of the position calibration device 21 and the position reading device 22 only collects and converts position signals without participating in elevator logic, thereby simplifying system architecture and avoiding conflict with the safety functions of the first electronic safety board and the second electronic safety board.
In an embodiment of the present invention, the communication bus between the first electronic security device and the second electronic security device is a secure serial bus, and the method further includes:
the first electronic safety board acquires the state of the car top safety switch, and sends the state of the car top safety switch to the second electronic safety board through the safety serial bus.
Namely, the first electronic safety board is also connected with a car top safety switch (the car safety switch specifically comprises one or more of a safety gear switch, a car top maintenance switch, a car top uplink switch, a car top downlink switch, a car top operation switch, a car door lock switch and the like), and collects and sends the state of the car top safety switch to the second electronic safety board, so that the elevator safety loop control is realized in an auxiliary manner.
Specifically, the first electronic safety board includes a plurality of connection terminals, and the plurality of connection terminals are respectively connected to the plurality of car safety switches, so that the first electronic safety board can acquire the states of the car safety switches through the connection terminals. Correspondingly, the second electronic safety board can be connected with a plurality of machine room safety switches, well safety switches, pit safety switches and the like, so that states of the machine room safety switches, the well safety switches and the pit safety switches can be obtained, and safety loop control can be realized by combining the second electronic safety board with the first electronic safety board.
As shown in fig. 3, in another embodiment of the present invention, the determining whether the car is abnormally operated in the elevator safety control method may specifically include:
step S121: the first electronic safety board calculates the running speed of the car according to the position information from the position reading device. For example, the first electronic safety board can calculate the running speed of the car according to the time difference between the car (i.e. the position reading device) passing through the two mark positions of the position calibration device 21 and the distance between the two mark positions (the distance can be a fixed value).
Step S122: the first electronic safety board judges whether the running speed of the car exceeds a preset value, if so, the step S123 is executed, otherwise, the step S121 is returned to.
Step S123: the first electronic safety board determines that the car runs abnormally, namely the car runs at an excessive speed, and the first electronic safety board sends information of the excessive speed of the car running to the second electronic safety board of the machine room through the safety serial bus, and safety control logic (such as disconnection of a safety loop, uploading of the state of a safety switch to a machine room control board and the like) is executed by the second electronic safety board.
As shown in fig. 4, in another embodiment of the present invention, the method for controlling elevator safety to determine whether the car is operating abnormally may include:
step S124: the first electronic safety board calculates the running speed of the car according to the position information from the position reading device. For example, the first electronic safety board can calculate the running speed of the car according to the time difference between the car (i.e. the position reading device) passing through the two mark positions of the position calibration device 21 and the distance between the two mark positions (the distance can be a fixed value).
Step S125: the first electronic safety board judges whether the running speed of the car exceeds a preset value, if so, step S127 is executed, and step S126 is executed.
Step S127: the first electronic safety board obtains a running curve (e.g., a deceleration curve) of the car according to the running speed and the position information of the car, and performs step S126 when the running curve of the car does not match a preset curve (e.g., a deceleration protection curve), otherwise performs step S124.
Step S127: the first electronic safety board judges the abnormal operation of the car, such as the abnormal overspeed or deceleration of the car, and the first electronic safety board sends the abnormal information to the second electronic safety board of the machine room through the safety serial bus, and the second electronic safety board executes the safety control logic (such as opening the safety circuit, uploading the state of the safety switch to the machine room control board, etc.).
As shown in fig. 5, an embodiment of the present invention further provides an elevator safety control system, which can be integrated into an elevator control system and assist in implementing a safety function. The elevator safety control system of the embodiment includes a position calibration device, a position reading device 51, a first electronic safety board 5 and a second electronic safety board 54, and the first electronic safety board 53 and the second electronic safety board 54 are connected through a communication bus. The first electronic safety board 53 and the second electronic safety board 54 are based on pessary, that is, the first electronic safety board 53 and the second electronic safety board respectively satisfy pessary requirements, the first electronic safety board 53 can be specifically installed on the top of the car and is independent of the car roof, and the second electronic safety board 54 can be specifically installed in the machine room and is independent of the machine room control board in the machine room.
The position calibration device is installed in a hoistway, the position reading device 51 is installed in a car, and the position reading device 51 acquires position information by reading a signal of the position calibration device installed in the hoistway during operation of the car. The first electronic safety board 5 judges whether the operation of the car is abnormal or not based on the position information acquired from the position reading device 51, and when it is judged that the operation of the car is abnormal, sends the abnormal operation information of the car to the second electronic safety board 54 installed in the machine room through the communication bus.
The position calibration device is arranged in the hoistway along the height direction, namely the position calibration device is used for realizing height calibration. The position reading device 51 can be mounted on the top of the car or at another position and by reading the corresponding calibration signal of the position calibration device, the height of the car in the hoistway is obtained. That is, the position reading device 51 and the position calibration device cooperate to realize the function of the position sensor (linear position sensor). For example, the position reading device 51 generates a signal each time a marking position of the position calibration device is passed, which signal constitutes the position information.
Specifically, the position calibration device may employ a magnetic grid ruler, and correspondingly, the position reading device 51 employs a magnetic grid ruler reading head; alternatively, the position calibration device may employ a grating scale, and accordingly, the position reading device 51 employs a grating scale reading head. Of course, in practical applications, the position reading device 51 and the position calibration device may also be combined with other devices that can achieve the straight line position acquisition.
Above-mentioned elevator safety control system obtains the car position through the position sensor who comprises position calibration device, position reading device 51 to combine with the first electron safety plate based on Pessral, realize elevator safety function, not only reduced car position safety system overall cost, avoided the safety function redundancy moreover, make system safety framework clear, the authentication is simple.
As shown in fig. 6, the communication bus between the first electronic security board 53 and the second electronic security board 54 may be a secure serial bus. The first electronic safety board 53 is also connected to the plurality of ceiling safety switches 55, and when the states of the plurality of ceiling safety switches 55 are acquired, the states of the ceiling safety switches 55 are transmitted to the second electronic safety board 54 through the safety serial bus.
In the present embodiment, the position reading device 51 is connected to the first electronic security board (using digital or analog signals) via a signal cable (parallel or serial cable); alternatively, the position reading device 51 may also be integrated into the first electronic security pane 53.
The first electronic safety board 53 may include a logic processing unit 531, a first signal conditioning circuit 532, and a second signal conditioning circuit 533, where the first signal conditioning circuit 532 and the second signal conditioning circuit 533 are respectively connected to the logic processing unit 531, and the logic processing unit 531 is connected to the position reading device 51 through the first signal conditioning circuit 532 and a corresponding wire harness, and is connected to the car top safety switch 55 through the second signal conditioning circuit 533. Specifically, the logic processing Unit 531 may adopt a dual-channel MCU (Micro Controller Unit) structure, so as to improve the security of the system.
In this embodiment, the logic processing unit 531 may receive the signal of the car top safety switch 55 through the second signal conditioning circuit 533 to detect the abnormality of the elevator, and receive the position information from the position reading device 51 through the first signal conditioning circuit 532 to obtain the real-time position and speed of the car, perform the safety logic judgment, and send the prompt or fault information after the logic judgment to the second electronic safety board 54. For example, depending on whether the car speed exceeds a set speed, a signal whether the speed is safe is output to the second electronic safety board 54; and outputting a signal whether the elevator is decelerated accidentally to the second electronic safety board according to the speed value of the elevator car, the real-time position of the elevator car and a preset normal deceleration protection curve of the elevator.
The elevator safety control system in this embodiment belongs to the same concept as the elevator safety control method in the embodiment corresponding to fig. 1 to 4, and the specific implementation process is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are correspondingly applicable in this system embodiment, which is not described herein again.
As shown in fig. 7, an embodiment of the present invention further provides an elevator safety control apparatus, which includes a first electronic safety plate 8 and a position reading device 7; the position reading device 7 comprises a first memory 71 and a first processor 72, and the first memory 71 stores therein a computer program that is executable on the first processor 72; the first electronic security board 8 comprises a second memory 81 and a second processor 82, and the second memory 81 stores therein a computer program operable on the second processor 82; the first processor 72, the second processor 82, when executing the computer program, implement the steps of the elevator safety control method as described above.
The elevator safety control device in this embodiment belongs to the same concept as the elevator safety control method in the embodiment corresponding to fig. 1 to 4, and the specific implementation process is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are correspondingly applicable in this device embodiment, which is not described herein again.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the elevator safety control method are realized.
The computer-readable storage medium in this embodiment belongs to the same concept as the elevator safety control method in the embodiment corresponding to fig. 1 to 4, and the specific implementation process thereof is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are applicable in the apparatus embodiment, which is not described herein again.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and modules are merely illustrated in terms of division, and in practical applications, the foregoing functions may be distributed as needed by different functional units and modules. Each functional unit and module in the embodiments may be integrated in one processor, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed elevator safety control method, system and apparatus can be implemented in other manners. For example, the elevator safety control system embodiments described above are merely illustrative.
In addition, functional units in the embodiments of the present application may be integrated into one processor, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any physical or interface switching device, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, software distribution medium, etc., capable of carrying said computer program code. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. An elevator safety control method, characterized by comprising:
in the running process of the lift car, a position reading device arranged on the lift car obtains position information by reading a signal of a position calibration device arranged on a well;
a first electronic safety plate arranged on the lift car judges whether the lift car runs abnormally according to the position information;
and the first electronic safety board sends abnormal car running information to a second electronic safety board installed in the machine room through a communication bus when the car runs abnormally.
2. The elevator safety control method according to claim 1, wherein the communication bus is a safety serial bus, the method further comprising:
the first electronic safety board obtains the state of the car roof safety switch, and sends the state of the car roof safety switch to the second electronic safety board through the safety serial bus.
3. The elevator safety control method according to claim 1, wherein the determining whether the car is abnormally operated by the first electronic safety plate installed in the car based on the position information includes:
the first electronic safety plate calculates the running speed of the car according to the position information;
and when the running speed of the car exceeds a preset value, the first electronic safety plate judges that the car runs abnormally.
4. The elevator safety control method according to claim 3, wherein the determining whether the operation of the car is abnormal according to the position information by the first electronic safety plate installed to the car comprises:
the first electronic safety plate acquires the running curve of the car according to the running speed and the position information of the car;
the first electronic safety plate judges that the car runs abnormally when the running curve of the car is not matched with a preset curve.
5. An elevator safety control system is characterized by comprising a position calibration device, a position reading device, a first electronic safety board and a second electronic safety board, wherein the first electronic safety board and the second electronic safety board are connected through a communication bus;
the position calibration device is arranged in a shaft, the position reading device is arranged on a car, and the position reading device obtains position information by reading signals of the position calibration device arranged in the shaft in the running process of the car;
the first electronic safety plate is installed on the car, the first electronic safety plate judges whether the car runs abnormally according to the position information acquired by the position reading device, and sends abnormal car running information to the second electronic safety plate installed in the machine room through a communication bus when the car runs abnormally.
6. The elevator safety control system of claim 5, wherein the communication bus is a safety serial bus:
the first electronic safety board is further connected with the plurality of car top safety switches to acquire the states of the plurality of car top safety switches, and the first electronic safety board sends the states of the car top safety switches to the second electronic safety board through the safety serial bus.
7. The elevator safety control system according to claim 5, wherein the position reading device is connected to the first electronic safety board by a signal cable; alternatively, the position reading device is integrated into the first electronic security pane.
8. The elevator safety control system according to claim 5, wherein the position calibration device is a magnetic grid ruler and the position reading device is a magnetic grid ruler reading head; or, the position calibration device is a grating ruler, and the position reading device is a grating ruler reading head.
9. An elevator safety control apparatus, comprising a position reading device and a first electronic safety plate; the position reading device comprises a first memory and a first processor, wherein the first memory stores a computer program which can run on the first processor; the first electronic security pane comprises a second memory and a second processor, the second memory having stored therein a computer program executable on the second processor; the first processor and the second processor, when executing the computer program, implement the steps of the elevator safety control method according to any one of claims 1 to 4.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the elevator safety control method according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010671775.7A CN113942904A (en) | 2020-07-16 | 2020-07-16 | Elevator safety control method, system, equipment and computer readable storage medium |
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| CN202010671775.7A CN113942904A (en) | 2020-07-16 | 2020-07-16 | Elevator safety control method, system, equipment and computer readable storage medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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