CN110248887B - Parallel elevator control method, system and device - Google Patents

Parallel elevator control method, system and device Download PDF

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Publication number
CN110248887B
CN110248887B CN201780085290.6A CN201780085290A CN110248887B CN 110248887 B CN110248887 B CN 110248887B CN 201780085290 A CN201780085290 A CN 201780085290A CN 110248887 B CN110248887 B CN 110248887B
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elevator
bus
modbus
communication
canbus
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CN110248887A (en
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郑伟
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Shenzhen Hpmont Technology Co Ltd
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Shenzhen Hpmont Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators

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Abstract

A parallel elevator control method comprising: connecting the power supplies of the first elevator (105) and the second elevator (106) in parallel; connecting a first elevator (105) in parallel with a second elevator (106) using a CANBUS (102); the first elevator (105) and the second elevator (106) are connected in parallel by adopting an MODBUS bus (103), and the MODBUS bus (103) is connected with an outer calling board (107) shared by the first elevator (105) and the second elevator (106); when the second elevator (106) detects that the CANBUS bus (102) is in normal communication, the communication state among the first elevator (105), the second elevator (106) and the MODBUS bus (103) is judged; when the first elevator (105) and the second elevator (106) have no data transmission on the CANBUS bus (102), the communication state of the first elevator (105) is judged.

Description

Parallel elevator control method, system and device
[ technical field ] A method for producing a semiconductor device
The present disclosure relates to electrical control technologies, and in particular, to a parallel elevator control method, system, and apparatus with simple control.
[ background of the invention ]
The general every floor of office building elevator only arrives the lamp and takes advantage of the ladder to instruct, does not have the display device of specific display floor, and the circuit topology characteristics that this kind of elevator generally adopted are that every elevator carries out data communication with the every floor display panel on this ladder to can normally carry out floor registration and floor and arrive lamp output control. However, there is a disadvantage in that each elevator requires one hall call board per floor, so that if there are a plurality of elevators, a plurality of hall call boards are required per floor. With the increase of floors, on one hand, the cost is increased remarkably, and on the other hand, the construction and installation cost is also increased remarkably.
[ summary of the invention ]
Therefore, it is necessary to provide a parallel elevator control method, system and device with simple control mode and low cost.
A parallel elevator control method comprising:
connecting the power supplies of the first elevator and the second elevator in parallel;
connecting the first elevator and the second elevator in parallel by using a CANBUS bus, wherein the CANBUS bus is used for transmitting floor command scheduling control data of the first elevator and the second elevator;
the first elevator and the second elevator are connected in parallel by adopting an MODBUS, wherein the MODBUS is also connected with an outer calling board shared by the first elevator and the second elevator and is used for transmitting call instructions of the first elevator and the second elevator;
when the second elevator detects that CANBUS bus communication is normal, judging the communication state among the first elevator, the second elevator and the MODBUS bus, and judging whether a wiring fault exists according to the communication state; and
and when the first elevator and the second elevator have no data transmission on the CANBUS bus, judging the communication state of the first elevator, and judging whether a communication fault exists according to the communication state.
A parallel elevator system comprising:
the power supply of the first elevator and the power supply of the second elevator are connected in parallel;
a CANBUS bus for connecting the first elevator in parallel with the second elevator, the CANBUS bus for communicating floor call dispatch control data for the first elevator and the second elevator;
the MODBUS is also connected with an external calling board shared by the first elevator and the second elevator and used for connecting the first elevator and the second elevator in parallel, wherein the MODBUS is used for transmitting call instructions of the first elevator and the second elevator; and
a judgment module for judging whether the received signal is correct,
when the second elevator detects that the CANBUS bus is in normal communication, the judging module is used for judging the communication state among the first elevator, the second elevator and the MODBUS bus and judging whether a wiring fault exists or not according to the communication state;
when the first elevator and the second elevator have no data transmission on the CANBUS bus, the judging module is further used for judging the communication state of the first elevator and judging whether a communication fault exists according to the communication state.
A parallel elevator control apparatus comprising:
the elevator control system comprises a first elevator, a second elevator, a CANBUS bus, a MODBUS bus and an elevator controller, wherein power supplies of the first elevator and the second elevator are connected in parallel;
the CANBUS bus connects the first elevator and the second elevator in parallel, wherein the CANBUS bus is used for transferring floor command dispatch control data of the first elevator and the second elevator;
the MODBUS is used for connecting the first elevator and the second elevator in parallel, wherein the MODBUS is used for transmitting call instructions of the first elevator and the second elevator;
when the second elevator detects that the CANBUS bus communication is normal, the elevator controller is used for judging the communication state among the first elevator, the second elevator and the MODBUS bus and judging whether a wiring fault exists or not according to the communication state;
when the first elevator and the second elevator have no data transmission on the CANBUS bus, the elevator controller is used for judging the communication state of the first elevator and judging whether a communication fault exists according to the communication state.
According to the parallel elevator control method, system and device, the power supplies of the first elevator and the second elevator are connected in parallel, so that the working power supply of the outer calling board shared by the first elevator and the second elevator is not influenced under the condition that any one of the elevators is powered off. Meanwhile, a CANBUS bus is adopted to connect the first elevator and the second elevator, so that the first elevator and the second elevator can transmit floor command scheduling control data through the CANBUS bus. Adopt MODBUS bus connection first elevator and second elevator, simultaneously, the board is called outward to MODBUS bus still connection first elevator and second elevator sharing for the calling landing instruction between first elevator and the second elevator can be dispatched and distribute through the MODBUS bus. Therefore, the system not only realizes that the first elevator and the second elevator are connected in parallel, but also reduces the use of an outer calling board between the first elevator and the second elevator, simplifies a control circuit and further saves the control cost.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other embodiments may be obtained from the drawings without creative efforts.
Fig. 1 is a schematic diagram of a parallel elevator control arrangement in one embodiment;
fig. 2 is a flow chart of a method of paralleling elevators in an embodiment;
fig. 3 is a block diagram of a parallel elevator control system in one embodiment.
[ detailed description ] embodiments
To facilitate an understanding of the present disclosure, the present disclosure will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present disclosure are set forth in the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic diagram of a parallel elevator control.
The parallel elevator control device in one embodiment comprises a first elevator 105 and a second elevator 106 which are connected in parallel, a CANBUS bus 102, a MODBUS bus 103 and an elevator controller 104. The power supplies of the first elevator 105 and the second elevator 106 are connected in parallel.
A CANBUS 102 connects the first elevator 105 in parallel with the second elevator 106, wherein the CANBUS 102 is used for transferring floor call dispatch control data of the first elevator 105 and the second elevator 106.
The MODBUS 103 connects the first elevator 105 and the second elevator 106 in parallel, wherein the MODBUS 103 is also connected to an outer calling board 107 shared by the first elevator 105 and the second elevator 106, and the MODBUS 103 is used for transmitting call commands of the first elevator 105 and the second elevator 106.
In this embodiment, after the MODBUS bus connects the first elevator and the second elevator in parallel, the elevator controller 104 is configured to make the first elevator 105 as a main elevator for dispatching and allocating call instructions; the elevator controller 104 is also configured to cause the second elevator 106 to act as a slave elevator for receiving dispatching commands from the master elevator.
When the second elevator 106 detects that the CANBUS bus 102 is in normal communication, the elevator controller 104 is configured to determine a communication state among the first elevator 105, the second elevator 106, and the MODBUS bus 103, and determine whether there is a wiring fault according to the communication state.
In this embodiment, when the first elevator 105 does not receive MODBUS bus data and the second elevator 106 receives MODBUS bus 103 data, the elevator controller 104 considers that a wiring fault occurs between the first elevator 105 and the MODBUS bus 103;
when detecting that the first elevator 105 receives the MODBUS bus data and the second elevator 106 does not receive the MODBUS bus 103 data, the elevator controller 104 considers that a wiring fault occurs between the second elevator 106 and the MODBUS bus 103;
when it is detected that neither the first elevator 105 nor the second elevator 106 receives MODBUS bus data, the elevator controller 104 recognizes that a wiring fault has occurred between both the first elevator 105 and the second elevator 106 and the MODBUS bus 103.
In this embodiment, after a wiring fault occurs between the first elevator 105 and the MODBUS 103, the elevator controller 104 is configured to enable the second elevator 106 to take over the control right of the MODBUS 103, and the second elevator 106 is configured to perform communication control with the external calling board 107; CANBUS 102 is used to communicate call commands to first elevator 105.
After the fault between the first elevator 105 and the MODBUS bus 103 is over, the CANBUS 102 is used for stopping the control right of the second elevator 106 on the MODBUS bus 103; the elevator controller 104 is used to allow the first elevator 105 to take over control of the MODBUS bus 103.
When the first elevator 105 and the second elevator 106 have no data transmission on the CANBUS 102, the elevator controller 104 is configured to determine a communication state of the first elevator 105, and determine whether there is a communication failure according to the communication state.
In this embodiment, when the second elevator 106 receives the MODBUS bus 103 data, the elevator controller 104 considers that a communication failure occurs between the first elevator 105 and the second elevator 106 and the CANBUS 102.
Meanwhile, the MODBUS bus 103 is configured to send protocol frame data, so that the floor command scheduling control data is sent to the second elevator 106. The elevator controller 104 is arranged to use the second elevator 106 for dispatching the first elevator 105 and the second elevator 106 according to the floor call.
When the second elevator 106 does not receive MODBUS bus data, the elevator controller 104 considers that the communication between the first elevator 105 and the MODBUS bus 103 is faulty; the elevator controller 104 is used for enabling a second elevator 106 to take over the control right of the MODBUS bus 103, and the second elevator 106 is used for carrying out communication control with the outer calling board 107; the elevator controller 104 is configured to enable the second elevator 106 to send out a protocol frame, and control to resume the communication between the first elevator 105 and the MODBUS bus 103.
In this embodiment, if the first elevator 105 receives a call instruction sent by the second elevator 106 through the MODBUS bus 103, the elevator controller 104 is configured to prohibit the first elevator 105 from controlling the MODBUS bus 103;
if the first elevator 105 and the second elevator 106 resume communication on the CANBUS bus 102, the elevator controller 104 is configured to cause the first elevator 105 to resume control of the MODBUS bus 103.
In the parallel elevator control device, the power supply sources of the first elevator 105 and the second elevator 106 are connected in parallel, so that the working power source of the outer calling board 107 shared by the first elevator 105 and the second elevator 106 is not influenced when any one of the elevators is powered off. Meanwhile, the CANBUS 102 is adopted to connect the first elevator 105 and the second elevator 106, so that the floor command dispatching control data can be transmitted between the first elevator 105 and the second elevator through the CANBUS 102. The first elevator 105 and the second elevator 106 are connected by the MODBUS bus 103, and meanwhile, the MODBUS bus 103 is also connected with an outer calling board 107 shared by the first elevator 105 and the second elevator 106, so that call instructions between the first elevator 105 and the second elevator 106 can be dispatched and allocated through the MODBUS bus 103. Therefore, the device not only realizes the parallel connection of the first elevator 105 and the second elevator 106, but also reduces the use of an external calling board 107 between the first elevator 105 and the second elevator 106, simplifies a control circuit and further saves the control cost.
Fig. 2 is a flow chart of a parallel elevator control method.
A parallel elevator control method comprising the steps of:
in step S210, the power supplies of the first elevator 105 and the second elevator 106 are connected in parallel.
And step S220, connecting the first elevator 105 and the second elevator 106 in parallel by using a CANBUS bus 102, wherein the CANBUS bus 102 is used for transmitting floor command dispatching control data of the first elevator 105 and the second elevator 106.
Step S230, connecting the first elevator 105 and the second elevator 106 in parallel by using a MODBUS bus 103, wherein the MODBUS bus 103 is also connected with an outer calling board 107 shared by the first elevator 105 and the second elevator 106, and the MODBUS bus 103 is used for transmitting call instructions of the first elevator 105 and the second elevator 106.
A floor call registration and a floor arrival lamp output are performed by the first elevator 105. The second elevator 106 does not send data but will monitor MODBUS bus 103 data in real time.
In this embodiment, call commands for each outer call panel 107 are communicated to first elevator 105 via MODBUS bus 103, and first elevator 105 sends floor commands to second elevator 106 via CANBUS 102 via a parallel dispatch algorithm. When the second elevator 106 arrives at a certain floor, the arrival information is sent to the first elevator 105 through the CANBUS bus 102, the first elevator 105 sends the arrival lamp information of the first elevator 105 and the second elevator 106 to each external call board 107 through the MODBUS bus 103, and the arrival lamps of the first elevator 105 and the second elevator 106 are respectively controlled by the external call boards 107 according to the own address and the arrival information of bus data.
After the first elevator 105 and the second elevator 106 are connected in parallel by the MODBUS bus 103, the method also comprises the following steps: firstly, a first elevator 105 is used as a main elevator for dispatching and allocating call instructions;
and the second elevator 106 is used as a slave elevator for receiving the dispatching command of the main elevator.
Step S240, when the second elevator 106 detects that the CANBUS bus 102 is in normal communication, judging the communication state among the first elevator 105, the second elevator 106 and the MODBUS bus 103, and judging whether a wiring fault exists according to the communication state;
step S240 includes:
firstly, if the first elevator 105 does not receive the MODBUS bus data and the second elevator 106 receives the MODBUS bus 103 data, the wiring fault between the first elevator 105 and the MODBUS bus 103 is considered to occur;
if the first elevator 105 receives the MODBUS bus 103 data and the second elevator 106 does not receive the MODBUS bus data, the second elevator 106 and the MODBUS bus 103 are considered to have a wiring fault;
and thirdly, if neither the first elevator 105 nor the second elevator 106 receives the MODBUS bus data, it is considered that a wiring fault occurs between the first elevator 105 and the second elevator 106 and the MODBUS bus 103.
In this embodiment, the method further comprises the following steps after a wiring fault occurs between the first elevator 105 and the MODBUS bus 103:
firstly, a second elevator 106 takes over the control right of the MODBUS bus 103, and the second elevator 106 is used for carrying out communication control with an external calling board 107;
② call instructions are transferred to the first elevator 105 using the CANBUS 102.
In this embodiment, the method further includes:
firstly, after the fault between the first elevator 105 and the MODBUS bus 103 is ended, the CANBUS bus 102 is adopted to stop the control right of the second elevator 106 on the MODBUS bus 103;
② the first elevator 105 takes over the control right of the MODBUS bus 103.
Step S250, when there is no data transmission between the first elevator 105 and the second elevator 106 on the CANBUS 102, determining the communication state of the first elevator 105, and determining whether there is a communication failure according to the communication state.
Step S250 includes:
if the second elevator 106 receives the MODBUS bus data, it is considered that a communication fault occurs between the first elevator 105 and the second elevator 106 and the CANBUS 102;
if the second elevator 106 does not receive MODBUS bus data, it is considered that a communication failure occurs between the first elevator 105 and the MODBUS 103.
The method also comprises the following steps after communication faults occur among the first elevator 105, the second elevator 106 and the CANBUS bus 102: the MODBUS bus 103 sends protocol frame data to enable floor command scheduling control data to be sent to the second elevator 106;
the second elevator 106 is caused to dispatch the first elevator 105 and the second elevator 106 according to the floor call.
The method also comprises the following steps after communication failure occurs between the first elevator 105 and the MODBUS bus 103:
the second elevator 106 is used for taking over the control right of the MODBUS bus 103, and the second elevator 106 is used for carrying out communication control with the external calling board 107;
the second elevator 106 is enabled to send out a protocol frame, and the communication between the first elevator 105 and the MODBUS bus 103 is controlled to be restored.
In this embodiment, after the control resumes the communication between the first elevator 105 and the MODBUS bus 103, the method further comprises the steps of:
if the first elevator 105 receives a call instruction sent by the second elevator 106 through the MODBUS bus 103, the first elevator 105 is prohibited from controlling the MODBUS bus 103;
if the first elevator 105 and the second elevator 106 recover to communicate on the CANBUS 102, the first elevator 105 controls the MODBUS 103 again.
In the parallel elevator control method, the power supply sources of the first elevator 105 and the second elevator 106 are connected in parallel, so that the working power source of the outer calling board 107 shared by the first elevator 105 and the second elevator 106 is not influenced when any one of the elevators is in power failure. Meanwhile, the CANBUS 102 is adopted to connect the first elevator 105 and the second elevator 106, so that the floor command dispatching control data can be transmitted between the first elevator 105 and the second elevator through the CANBUS 102. The first elevator 105 and the second elevator 106 are connected by the MODBUS bus 103, and meanwhile, the MODBUS bus 103 is also connected with an outer calling board 107 shared by the first elevator 105 and the second elevator 106, so that call instructions between the first elevator 105 and the second elevator 106 can be dispatched and allocated through the MODBUS bus 103. Therefore, the method not only realizes the parallel connection of the first elevator 105 and the second elevator 106, but also reduces the use of an external calling board 107 between the first elevator 105 and the second elevator 106, simplifies a control circuit and further saves the control cost.
Fig. 3 is a block diagram of a parallel elevator control system.
A parallel elevator system comprises a first elevator 105, a second elevator 106, a CANBUS bus 102, a MODBUS bus 103 and a judgment module 302 which are connected in parallel, wherein power supplies of the first elevator 105 and the second elevator 106 are connected in parallel.
CANBUS 102 is used for connecting a first elevator 105 and a second elevator 106 in parallel, wherein MODBUS 103 is also connected with an outer calling board 107 shared by the first elevator 105 and the second elevator 106, CANBUS 102 is used for transmitting floor instruction dispatching control data of the first elevator 105 and the second elevator 106;
the MODBUS 103 is used for connecting the first elevator 105 and the second elevator 106 in parallel, wherein the MODBUS 103 is used for transmitting call instructions of the first elevator 105 and the second elevator 106;
when the second elevator 106 detects that the CANBUS bus 102 is in normal communication, the judging module is used for judging the communication state among the first elevator 105, the second elevator 106 and the MODBUS bus 103 and judging whether a wiring fault exists according to the communication state;
when the first elevator 105 and the second elevator 106 have no data transmission on the CANBUS 102, the determining module is further configured to determine a communication state of the first elevator 105, and determine whether there is a communication fault according to the communication state.
In one embodiment, the determination module 302 is a microcontroller.
The system also comprises an elevator control module, wherein the elevator control module is used for enabling the first elevator 105 to be used as a main elevator and used for dispatching and allocating call instructions;
the elevator control module is also used to make the second elevator 106 a slave elevator for accepting dispatching commands from the master elevator.
When the judgment module detects that the first elevator 105 does not receive the MODBUS bus 103 data and the second elevator 106 receives the MODBUS bus 103 data, the judgment module considers that a wiring fault occurs between the first elevator 105 and the MODBUS bus 103;
when the judging module detects that the first elevator 105 receives MODBUS bus data and the second elevator 106 does not receive MODBUS bus 103 data, the judging module considers that a wiring fault occurs between the second elevator 106 and the MODBUS bus 103;
when the judgment module detects that neither the first elevator 105 nor the second elevator 106 receives the MODBUS bus data, it is determined that a wiring fault occurs between the first elevator 105 and the second elevator 106 and the MODBUS 103.
The elevator control module is used for enabling a second elevator 106 to take over the control right of the MODBUS bus 103, and the second elevator 106 is used for carrying out communication control with the external calling board 107;
CANBUS 102 is used to communicate call commands to first elevator 105.
After the MODBUS bus 103 of the first elevator 105 has failed, the CANBUS 102 is used for stopping the second elevator 106 from controlling the MODBUS 103;
the elevator control module is used to enable the first elevator 105 to take over control of the MODBUS bus 103.
When detecting that the second elevator 106 receives the MODBUS bus data, the judging module considers that communication faults occur among the first elevator 105, the second elevator 106 and the CANBUS bus 102;
when the judgment module detects that the second elevator 106 does not receive the MODBUS bus data, it determines that a communication fault occurs between the first elevator 105 and the MODBUS 103.
The MODBUS bus 103 is used for sending protocol frame data to enable the floor instruction scheduling control data to be sent to the second elevator 106;
the elevator control module is used to make the second elevator 106 used to dispatch the first elevator 105 and the second elevator 106 according to the floor call.
The elevator control module is used for enabling a second elevator 106 to take over the control right of the MODBUS bus 103, and the second elevator 106 is used for carrying out communication control with the external calling board 107;
the elevator control module is used for enabling the second elevator 106 to send out a protocol frame and controlling and restoring the communication between the first elevator 105 and the MODB US bus 103.
If the first elevator 105 receives a call instruction sent by the second elevator 106 through the MODBUS 103, the elevator control module is used for prohibiting the first elevator 105 from controlling the MODBUS 103;
if the first elevator 105 and the second elevator 106 resume communication on the CANBUS 102, the elevator control module is configured to cause the first elevator 105 to resume control of the MODBUS bus 103.
In the parallel elevator system, the power supply sources of the first elevator 105 and the second elevator 106 are connected in parallel, so that the working power source of the outer calling board 107 shared by the first elevator 105 and the second elevator 106 is not influenced when any one of the elevators is powered off. Meanwhile, the CANBUS 102 is adopted to connect the first elevator 105 and the second elevator 106, so that the floor command dispatching control data can be transmitted between the first elevator 105 and the second elevator through the CANBUS 102. The first elevator 105 and the second elevator 106 are connected by the MODBUS bus 103, and meanwhile, the MODBUS bus 103 is also connected with an outer calling board 107 shared by the first elevator 105 and the second elevator 106, so that call instructions between the first elevator 105 and the second elevator 106 can be dispatched and allocated through the MODBUS bus 103. Therefore, the system not only realizes the parallel connection of the first elevator 105 and the second elevator 106, but also reduces the use of an external calling board between the first elevator 105 and the second elevator 106, simplifies a control circuit and further saves the control cost.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present disclosure, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the concept of the present disclosure, and these changes and modifications are all within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims (20)

1. A parallel elevator control method comprising:
connecting the power supplies of the first elevator and the second elevator in parallel;
connecting the first elevator and the second elevator in parallel by using a CANBUS bus, wherein the CANBUS bus is used for transmitting floor command scheduling control data of the first elevator and the second elevator;
the first elevator and the second elevator are connected in parallel by adopting an MODBUS, wherein the MODBUS is also connected with an outer calling board shared by the first elevator and the second elevator and is used for transmitting call instructions of the first elevator and the second elevator;
when the second elevator detects that CANBUS bus communication is normal, judging the communication state among the first elevator, the second elevator and the MODBUS bus, and judging whether a wiring fault exists according to the communication state; and
and when the first elevator and the second elevator have no data transmission on the CANBUS bus, judging the communication state of the first elevator, and judging whether a communication fault exists according to the communication state.
2. The method of claim 1, further comprising, after said connecting said first elevator in parallel with said second elevator using a MODBUS bus:
the first elevator is used as a main elevator and used for dispatching and allocating call instructions;
and the second elevator is used as a slave elevator for receiving dispatching commands of the main elevator.
3. The method of claim 2, wherein the determining the communication status between the first elevator, the second elevator, and the MODBUS when the second elevator detects that the CANBUS communication is normal comprises:
if the first elevator does not receive MODBUS bus data and the second elevator receives MODBUS bus data, the fact that a wiring fault occurs between the first elevator and the MODBUS bus is considered;
if the first elevator receives MODBUS bus data and the second elevator does not receive MODBUS bus data, the second elevator and the MODBUS bus are considered to have a wiring fault;
and if the first elevator and the second elevator do not receive MODBUS bus data, the first elevator, the second elevator and the MODBUS bus are considered to have wiring faults.
4. The method of claim 3, wherein after a wiring fault between the first elevator and the MODBUS bus, the method further comprises:
enabling the second elevator to take over the control right of the MODBUS bus, wherein the second elevator is used for carrying out communication control with the external calling board;
communicating a call command to the first elevator using the CANBUS bus.
5. The method of claim 4, further comprising:
after the fault between the first elevator and the MODBUS bus is ended, stopping the control right of the second elevator on the MODBUS bus by adopting the CANBUS bus;
causing the first elevator to take over control of the MODBUS bus.
6. The method of claim 2, wherein determining the communication status of the first elevator when the first elevator and the second elevator have no data transfer on the CANBUS comprises:
if the second elevator receives MODBUS bus data, communication faults occur between the first elevator and the CANBUS bus as well as between the second elevator and the CANBUS bus;
and if the second elevator does not receive MODBUS bus data, the first elevator and the MODBUS bus are considered to have communication faults.
7. The method of claim 6, wherein after a communication failure between the first elevator, the second elevator, and the CANBUS bus, the method further comprises the steps of:
the MODBUS bus sends protocol frame data to enable floor instruction scheduling control data to be sent to the second elevator;
causing the second elevator to dispatch the first elevator and the second elevator according to the floor call.
8. The method of claim 6, wherein after a communication failure between a first elevator and the MODBUS bus, the method further comprises:
enabling a second elevator to take over the control right of the MODBUS bus, wherein the second elevator is used for carrying out communication control with the external calling board;
and enabling the second elevator to send out a protocol frame, and controlling and recovering the communication between the first elevator and the MODBUS bus.
9. The method of claim 8, wherein after control resumes communication between the first elevator and the MODBUS bus, the method further comprises:
if the first elevator receives a call instruction sent by the second elevator through the MODBUS, the first elevator is prohibited from controlling the MODBUS;
and if the first elevator and the second elevator recover communication on the CANBUS bus, the first elevator controls the MODBUS bus again.
10. A parallel elevator system comprising:
the power supply of the first elevator and the power supply of the second elevator are connected in parallel;
a CANBUS bus for connecting the first elevator in parallel with the second elevator, the CANBUS bus for communicating floor call dispatch control data for the first elevator and the second elevator;
the MODBUS is also connected with an external calling board shared by the first elevator and the second elevator and used for connecting the first elevator and the second elevator in parallel, wherein the MODBUS is used for transmitting call instructions of the first elevator and the second elevator; and
a judgment module for judging whether the received signal is correct,
when the second elevator detects that the CANBUS bus is in normal communication, the judging module is used for judging the communication state among the first elevator, the second elevator and the MODBUS bus and judging whether a wiring fault exists or not according to the communication state;
when the first elevator and the second elevator have no data transmission on the CANBUS bus, the judging module is further used for judging the communication state of the first elevator and judging whether a communication fault exists according to the communication state.
11. The system of claim 10, further comprising an elevator control module for making the first elevator a primary elevator, the elevator control module further for making dispatch assignments to call instructions; the elevator control module is also used for enabling the second elevator to be used as a slave elevator and used for receiving dispatching instructions of a master elevator.
12. The system of claim 11, wherein the determining module considers that a wiring fault occurs between the first elevator and the MODBUS when detecting that the first elevator does not receive MODBUS bus data and the second elevator receives MODBUS bus data;
when the judging module detects that the first elevator receives MODBUS bus data and the second elevator does not receive MODBUS bus data, the judging module considers that a wiring fault occurs between the second elevator and the MODBUS bus;
when the judgment module detects that neither the first elevator nor the second elevator receives MODBUS bus data, the judgment module considers that wiring faults occur between the first elevator and the second elevator and the MODBUS bus.
13. The system of claim 12, wherein the elevator control module is configured to enable the second elevator to take over control of the MODBUS bus, the second elevator being configured to communicate with the hall call board;
the CANBUS is used to communicate call commands to the first elevator.
14. The system of claim 13 wherein the CANBUS is configured to stop the second elevator from controlling MODBUS after the first elevator and MODBUS failure has ended;
the elevator control module is used for enabling the first elevator to take over the control right of the MODBUS bus.
15. The system of claim 11, wherein the determining module determines the communication status of the first elevator when the first elevator and the second elevator have no data transmission on the CANBUS, and determines whether there is a communication failure according to the communication status comprises:
when the judging module detects that the second elevator receives MODBUS bus data, the judging module considers that communication faults occur between the first elevator and the CANBUS bus as well as between the second elevator and the CANBUS bus;
and when the judgment module detects that the second elevator does not receive MODBUS bus data, the judgment module considers that a communication fault occurs between the first elevator and the MODBUS bus.
16. The system of claim 15, wherein after a communication fault occurs between the first elevator, the second elevator, and the CANBUS:
the MODBUS is used for sending protocol frame data to enable floor instruction scheduling control data to be sent to the second elevator;
the elevator control module is to cause the second elevator to dispatch the first elevator and the second elevator according to the floor call.
17. The system of claim 15, wherein after a communication failure between the first elevator and the MODBUS bus:
the elevator control module is used for enabling a second elevator to take over the control right of the MODBUS bus, and the second elevator is used for carrying out communication control with the external calling board;
the elevator control module is used for enabling the second elevator to send out a protocol frame, and controlling and recovering the communication between the first elevator and the MODBUS bus.
18. The system of claim 12, wherein the elevator control module is configured to disable the first elevator from controlling the MODBUS bus if the first elevator receives a call command sent by the second elevator over the MODBUS bus;
and if the first elevator and the second elevator recover communication on the CANBUS bus, the elevator control module is used for enabling the first elevator to control the MODBUS bus again.
19. A parallel elevator control apparatus comprising:
the elevator control system comprises a first elevator, a second elevator, a CANBUS bus, a MODBUS bus and an elevator controller, wherein power supplies of the first elevator and the second elevator are connected in parallel;
the CANBUS bus connects the first elevator and the second elevator in parallel, wherein the CANBUS bus is used for transferring floor command dispatch control data of the first elevator and the second elevator;
the MODBUS is used for connecting the first elevator and the second elevator in parallel, wherein the MODBUS is used for transmitting call instructions of the first elevator and the second elevator;
when the second elevator detects that the CANBUS bus communication is normal, the elevator controller is used for judging the communication state among the first elevator, the second elevator and the MODBUS bus and judging whether a wiring fault exists or not according to the communication state;
when the first elevator and the second elevator have no data transmission on the CANBUS bus, the elevator controller is used for judging the communication state of the first elevator and judging whether a communication fault exists according to the communication state.
20. The apparatus of claim 19 wherein the elevator controller is configured to cause the first elevator to act as a primary elevator for dispatch assignment of call commands;
the elevator controller is also used for enabling the second elevator to be used as a slave elevator and used for receiving dispatching instructions of a master elevator;
when the first elevator does not receive MODBUS bus data and the second elevator receives MODBUS bus data, the elevator controller considers that a wiring fault occurs between the first elevator and the MODBUS bus;
when the first elevator receives MODBUS bus data and the second elevator does not receive MODBUS bus data, the elevator controller considers that a wiring fault occurs between the second elevator and the MODBUS bus;
when detecting that neither the first elevator nor the second elevator receives MODBUS bus data, the elevator controller considers that wiring faults occur between the first elevator and the second elevator and the MODBUS bus;
after a communication fault occurs between the first elevator and the MODBUS, the elevator controller is used for enabling the second elevator to take over the control right of the MODBUS, and the second elevator is used for carrying out communication control with an external calling board;
the CANBUS bus is used for transmitting a call instruction to the first elevator;
after the communication fault between the first elevator and the MODBUS is finished, the CANBUS bus is used for stopping the control right of the second elevator to the MODBUS;
the elevator controller is used for enabling the first elevator to take over the control right of the MODBUS bus;
when the second elevator receives MODBUS bus data, the elevator controller considers that communication faults occur between the first elevator and the CANBUS bus as well as between the second elevator and the CANBUS bus;
when the second elevator does not receive MODBUS bus data, the elevator controller considers that a communication fault occurs between the first elevator and the MODBUS bus;
the MODBUS is used for sending protocol frame data to enable floor instruction scheduling control data to be sent to the second elevator;
the elevator controller is to cause the second elevator to dispatch the first elevator and the second elevator according to the floor call;
the elevator controller is used for enabling the second elevator to take over the control right of the MODBUS bus, and the second elevator is used for carrying out communication control with the external calling board;
the elevator controller is used for enabling the second elevator to send out a protocol frame and controlling and recovering the communication between the first elevator and the MODBUS bus;
if the first elevator receives a call instruction sent by the second elevator through the MODBUS, the elevator controller is used for forbidding the first elevator to control the MODBUS;
and if the first elevator and the second elevator recover communication on the CANBUS bus, the elevator controller is used for enabling the first elevator to control the MODBUS bus again.
CN201780085290.6A 2017-05-25 2017-05-25 Parallel elevator control method, system and device Active CN110248887B (en)

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CN113392922B (en) * 2021-06-29 2024-03-19 苏州汇川控制技术有限公司 Automatic identification method for main equipment and auxiliary equipment, ladder control equipment and storage medium

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