CN111891861B - Elevator communication method, device, controller and system based on coded cable - Google Patents
Elevator communication method, device, controller and system based on coded cable Download PDFInfo
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- CN111891861B CN111891861B CN202010680534.9A CN202010680534A CN111891861B CN 111891861 B CN111891861 B CN 111891861B CN 202010680534 A CN202010680534 A CN 202010680534A CN 111891861 B CN111891861 B CN 111891861B
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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
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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
- B66B1/3476—Load weighing or car passenger counting devices
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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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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
Abstract
The application relates to the technical field of elevator control, and provides an elevator communication method, device, controller, system and storage medium based on a coded cable. This application has improved elevator communication reliability, still is favorable to reducing elevator user personnel's potential safety hazard. The method comprises the steps that first information used for being communicated with a car controller is determined through a cabinet controller, the first information is modulated into a cable driving signal of a coding cable through a first modulator, the coding cable is driven by the cable driving signal to generate a first electromagnetic field corresponding to the cable driving signal, so that an electromagnetic induction device installed on a car demodulates a first electromagnetic induction signal corresponding to the first electromagnetic field through a second demodulator to obtain first information, and then the first information is transmitted to the car controller.
Description
Technical Field
The application relates to the technical field of elevator control, in particular to a non-contact car position detection and communication method, a non-contact car position detection and communication device, a non-contact car position detection and communication controller, a non-contact car position detection and communication system and a non-contact car position storage medium.
Background
An elevator position signal system generally comprises a photoelectric switch or a magnetic switch arranged on the top of a car, a flat-layer flashboard of each floor, speed reduction switches at the top and the bottom of a hoistway, a limit position switch and the like, and needs more parts to be matched to realize elevator position signal communication or other signal communication.
In the existing elevator control technology, communication between a car and a main control room generally adopts a wired communication mode to transmit signals, for example, the wired communication is connected with corresponding signal receiving and transmitting ends of the switches through cables or optical cables, and the cables and the optical cables are easy to bend and break due to abrasion in long-term contact, so that the communication reliability of the technology is low, and the potential safety hazard of elevator users is easy to increase.
Disclosure of Invention
In view of the above, it is necessary to provide a communication method, device, controller, system and storage medium based on a coded cable in order to solve the above technical problems.
An elevator communication method based on a coded cable is applied to a cabinet control controller, and the method comprises the following steps:
determining first information for communicating with a car controller;
modulating the first information into a cable drive signal of the encoded cable using a first modulator;
the cable driving signal is utilized to drive the coding cable to generate a first electromagnetic field corresponding to the cable driving signal, so that an electromagnetic induction device installed on the car demodulates a first electromagnetic induction signal corresponding to the first electromagnetic field through a second demodulator to obtain first information, and then the first information is transmitted to the car controller.
In one embodiment, the method further comprises the following steps:
when a preset event of the car is detected, acquiring the current position and the current load of the car; the current position and the current load are transmitted to the control cabinet controller by the car controller through the coding cable;
determining a nearest adjacent flat floor of the car according to the current position;
obtaining a control command for the car according to the nearest adjacent flat layer;
the determining first information in communication with a car controller includes:
acquiring first information carrying the control instruction; the first information is used for indicating the car controller to control the car to execute the operation corresponding to the control command.
A coded cable based elevator communication method applied to a car controller, the method comprising:
determining second information for communicating with the control cabinet controller;
modulating the second information into an electromagnetic induction driving signal of an electromagnetic induction device by using a second modulator; the electromagnetic induction device is arranged on the lift car;
and driving the electromagnetic induction device by using the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through a first demodulator to obtain second information, and then transmits the second information to the control cabinet controller.
In one embodiment, the encoded cable includes an address transmission pair line; the address transmission pair line is used for generating second electromagnetic induction signals corresponding to different address codes when the elevator car is at different heights;
the driving of the electromagnetic induction device by the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal so that the second electromagnetic induction signal corresponding to the second electromagnetic field is demodulated by the encoding cable through the first demodulator to obtain the second information, and then the second information is transmitted to the control cabinet controller includes:
at the current height of the car, the electromagnetic induction driving signal is utilized to drive the electromagnetic induction device to generate a second electromagnetic field, so that the address transmission pair line generates a second electromagnetic induction signal according to the second electromagnetic field induced at the current height; wherein the content of the first and second substances,
the second electromagnetic induction signal is transmitted to the first demodulator through the address transmission pair line so as to trigger the first demodulator to obtain an address code according to the phase of the second electromagnetic induction signal, and then the address code is transmitted to the control cabinet controller, so that the control cabinet controller obtains the current height according to the address code.
In one embodiment, the different heights include heights corresponding to different levels; the different address codes comprise address codes corresponding to different levels; the method further comprises the following steps:
and controlling the car to traverse each flat layer and recording the address codes corresponding to each flat layer by the cabinet control controller when the car moves to each flat layer to obtain the different address codes.
An encoded cable based elevator communication apparatus, the apparatus comprising:
a first information determination module for determining first information for communication with a car controller;
the first signal modulation module is used for modulating the first information into a cable driving signal of the coded cable by using a first modulator;
the first information demodulation module is used for driving the coding cable to generate a first electromagnetic field corresponding to the cable driving signal by utilizing the cable driving signal, so that the electromagnetic induction device installed on the car demodulates the first electromagnetic induction signal corresponding to the first electromagnetic field through the second demodulator to obtain first information, and then transmits the first information to the car controller.
An elevator communication device based on a coded cable, applied to a car controller, the device comprising:
the second information determining module is used for determining second information communicated with the control cabinet controller;
the second signal modulation module is used for modulating the second information into an electromagnetic induction driving signal of the electromagnetic induction device by using a second modulator;
and the second information demodulation module is used for driving the electromagnetic induction device to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal by using the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through the first demodulator to obtain second information and transmits the second information to the control cabinet controller.
A cabinet controller comprising a memory and a processor, the memory storing a computer program, the processor implementing the computer program when executing the computer program:
determining first information for communicating with a car controller;
modulating the first information into a cable driving signal of a coded cable by using a first modulator;
the cable driving signal is utilized to drive the coding cable to generate a first electromagnetic field corresponding to the cable driving signal, so that an electromagnetic induction device installed on the car demodulates a first electromagnetic induction signal corresponding to the first electromagnetic field through a second demodulator to obtain first information, and then the first information is transmitted to the car controller.
A car controller comprising a memory and a processor, the memory storing a computer program which when executed by the processor effects the steps of:
determining second information for communicating with the control cabinet controller;
modulating the second information into an electromagnetic induction driving signal of an electromagnetic induction device by using a second modulator; the electromagnetic induction device is arranged on the lift car;
and driving the electromagnetic induction device by using the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through a first demodulator to obtain second information, and then transmits the second information to the control cabinet controller.
An elevator system comprises the control cabinet controller, the car controller and a coding cable; wherein, the code cable is used for the switch board controller with the car controller communicates.
According to the elevator communication method, the elevator communication device, the elevator communication controller, the elevator communication system and the elevator communication storage medium based on the coded cable, the first information used for communicating with the car controller is determined through the cabinet control controller, the first information is modulated into the cable driving signal of the coded cable through the first modulator, the coded cable is driven through the cable driving signal to generate the first electromagnetic field corresponding to the cable driving signal, so that the electromagnetic induction device installed on the car demodulates the first electromagnetic induction signal corresponding to the first electromagnetic field through the second demodulator to obtain the first information, and then the first information is transmitted to the car controller. This scheme has accomplished the communication between car and the accuse cabinet controller through the first information that the electromagnetic induction device of installing on the car received the accuse cabinet controller and sent and produced through the code cable, and need not to rely on the optical cable or the cable that are used for wired connection, has improved the communication reliability, still is favorable to reducing elevator user personnel's potential safety hazard.
Drawings
Fig. 1 is a diagram of an application environment of a coded cable-based elevator communication method in one embodiment;
fig. 2 is a flow diagram of a coded cable based elevator communication method in one embodiment;
FIG. 3a is a schematic diagram of a coded cable configuration in one embodiment;
FIG. 3b is a schematic view of another coded cable configuration in one embodiment;
FIG. 3c is a schematic view of yet another coded cable configuration in one embodiment;
fig. 4 is a schematic structural diagram of an elevator system based on a coded cable in one embodiment;
fig. 5 is a schematic flow diagram of a coded cable based elevator communication method in another embodiment;
fig. 6 is a block diagram of a coded cable based elevator communication device in one embodiment;
fig. 7 is a block diagram of the structure of an elevator communication device based on a coded cable in another embodiment;
FIG. 8 is an internal block diagram of a controller in accordance with one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in 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 present application and are not intended to limit the present application.
The elevator communication method based on the coded cable can be applied to the traction type elevator application environment shown in figure 1. The cabinet controller 110 is located at the uppermost part of the hoistway, the upper end and the lower end of the encoding cable 130 are fixed by a tensioning device and are laid along the wall of the hoistway, and a supporting device is used for fixing at certain intervals to ensure the verticality of the encoding cable. The control cabinet controller 110 is connected with the upper end of the coding cable 130 in a wired manner, the control cabinet controller 110 can communicate with the car controller 120 on the car 150 through the coding cable 130 and the antenna box 140, and the antenna in the antenna box 140 communicates with the coding cable 130 in a short-distance (generally 5-20 cm) electromagnetic coupling manner in a wireless manner. The control cabinet controller 110 and the car controller 120 may be implemented by a separate server or a server cluster composed of a plurality of servers. The application environment of the elevator communication method further comprises an impedance matching device 160 connected with the lower end of the code cable 130, and the impedance matching device is used for improving energy efficiency in the signal transmission process of the code cable.
In one embodiment, as shown in fig. 2, there is provided a coded cable-based elevator communication method, which is exemplified by the application of the method to the cabinet controller 110 in fig. 1, and includes the following steps:
in step S201, first information for communication with the car controller 120 is determined.
The first information includes a control signal to the car 150, which may be, for example, a door opening command or a door closing command, and a warning or notification signal to an elevator user.
Specifically, the cabinet controller 110 may receive, as the first information, an instruction input by an elevator controller through an input device, for example, an emergency door closing instruction, a voice prompt instruction, and the like; the control cabinet controller 110 may further determine corresponding first information content after receiving the failure information, the car load information, and the like sent by the car controller 120, for example, determine that the first information is an emergency stop instruction for the car failure, and determine that the corresponding first information is an overweight instruction according to the car overweight information.
Step S202, a first modulator is used for modulating the first information into a cable driving signal of the coded cable.
The encoding cable 130 is a flat cable using rubber as a sheath, and has a plurality of pairs of transmission pairs inside, which are divided into communication transmission pairs and address transmission pairs according to the purpose, one of the wires of each pair is branched at the top and the other is branched at the bottom, and the cross part can be regarded as a single coil, as shown in fig. 3.
Fig. 3a is a schematic diagram of communication transmission pair lines, and in order to suppress interference, the communication pair lines L0 and L1 may be two pairs of lines that intersect at a certain distance.
Fig. 3b is a schematic diagram of an address transmission pair line, which includes a reference line (R line) for acquiring a standard signal and an address line (G line), which does not cross throughout the encoded cable. The address lines are used for detecting addresses, and each pair of address lines are arranged according to different step length rules and are crossed once at intervals of a certain length (step length).
In fig. 3b, R0 is a reference line, G0 and G1 are address lines (there may be several pairs of address lines according to the actual detection distance), each pair of address lines are arranged according to different step rules, and cross at regular intervals of a certain length (step), and if the minimum step of the encoding cable is W, the step of G0 and the step of G1 are W and 2W, respectively, and the reference line R0 does not cross in the whole cable. If the coded cable has N pairs of address lines (G lines), the coded cable can measure the height of the elevator
In step S202, the first information sent by the cabinet controller 110 is modulated by the first modem and then transmitted to the encoded cable 130 as a cable driving signal.
Specifically, as shown in fig. 4, the first information sent by the cabinet controller 110 is modulated by the first modem and then transmitted to the first power amplifying device, and the modulated signal is amplified by the power amplifying device and then transmitted to the encoding cable 130 as a cable driving signal. The modulation mode can be Frequency Shift Keying (FSK), binary differential phase shift keying (2 DPSK) and other modes.
Step S203, driving the encoding cable with the cable driving signal to generate a first electromagnetic field corresponding to the cable driving signal, so that the electromagnetic induction device mounted on the car demodulates the first electromagnetic induction signal corresponding to the first electromagnetic field through the second demodulator to obtain the first information, and then transmits the first information to the car controller.
In this step, the electromagnetic induction device is a device that transmits and receives signals using the principle of electromagnetic induction, and may be, for example, an antenna. The cable driving signal is transmitted through the encoding cable 130, and as can be seen from the principle of electromagnetic induction, the alternating current generates an electromagnetic wave, so that a first electromagnetic field corresponding to the cable driving signal is generated near the encoding cable 130, an electromagnetic induction device installed on the car, such as an antenna, receives the first electromagnetic field signal, so that a corresponding first electromagnetic induction signal is generated in an antenna coil, the first electromagnetic induction signal is amplified by a second power amplification device in fig. 4 and then transmitted to a second modem, the second modem demodulates the first electromagnetic induction signal to obtain original first information, and the original first information is transmitted to the car controller 120, so that the car controller 120 controls the car 150 according to the first information, such as emergency door closing.
In the elevator communication method based on the coded cable, the first information used for communicating with the car controller 120 is determined through the cabinet controller 110, the first modulator is used for modulating the first information into a cable driving signal of the coded cable 130, the cable driving signal is used for driving the coded cable 130 to generate a first electromagnetic field corresponding to the cable driving signal, so that an electromagnetic induction device mounted on a car generates a first electromagnetic induction signal under the action of the first electromagnetic field, the first electromagnetic induction signal is demodulated by the second demodulator to obtain the first information and then is transmitted to the car controller 120, and therefore, the communication between the car controller 120 and the cabinet controller 110 is completed, optical cables or cables connected with various switching devices are not needed, long-distance antennas are not needed to receive or send signals, unsafe communication caused by long-term abrasion of the cables or the optical cables is reduced, and the communication reliability is also avoided being reduced due to interference in the process of receiving and sending the signals by the long-distance antennas, so that the potential safety hazards of elevator users are reduced.
In an embodiment, the method may further include:
when a preset event of the car is detected, acquiring the current position and the current load of the car; the current position and the current load are transmitted to the control cabinet controller by the car controller through a coding cable; determining the nearest adjacent flat layer of the car according to the current position; and obtaining a control command for the car according to the nearest adjacent flat layer.
In this embodiment, the preset event refers to an event model established in advance, for example, the elevator is overweight, unstable in speed, emergency for help, unexpected power failure, and the like. Specifically, a corresponding sensor, for example, a weight sensor, is installed in the elevator car 150, and when the sensor detects that the weight of the elevator exceeds a set threshold, the sensor sends car current load information to the car controller 120, the car controller 120 sends the current load information to the control cabinet controller 110, and the control cabinet controller 110 acquires the current position and the current load of the car 150 through the coded cable 130. Optionally, when the elevator has an unexpected power failure, the cabinet controller 110 needs to send information such as the load of the current car detected by the sensor in the car to the cabinet controller 110 by temporarily supplying power through the power failure cabinet after determining that the power failure cabinet is put into use.
The control cabinet controller 110 calculates the current position of the car 150 to obtain the current floor height data, and further obtains the nearest neighbor upper and lower leveling positions of the current position of the car 150. Then, the control cabinet controller 110 calculates the distance between the current position of the car 150 and the adjacent upper and lower floors according to the upper and lower leveling positions of the current position of the car 150, and then calculates the most energy-saving method by combining the current load to obtain a moving instruction of the car, for example, the car moves to the upper floor at a certain speed, the control cabinet controller 110 can directly control the traction machine to perform corresponding operation, so that the car moves to the upper floor at a certain speed, and meanwhile, the control cabinet controller 110 also obtains a corresponding control instruction to be sent to the car controller 120 through calculation, for example, an emergency door opening instruction can be executed after the car reaches the corresponding leveling.
Further, the step S201 of determining the first information communicated with the car controller includes:
acquiring first information carrying a control instruction; and the first information is used for indicating the car controller to control the car to execute the operation corresponding to the control command.
Specifically, the cabinet controller 110 uses the emergency door opening command for the car 150 as the first information to be sent.
In the above embodiment, the control cabinet controller 110 obtains the preset event model, determines the first information for performing the corresponding operation on the car 150, and sends the first information to the car controller 120 through the encoding cable 130 to complete the operation control on the car 150, so that the car 150 can reach the safe floor as soon as possible and execute the corresponding instruction in an emergency. The information transmission method reduces the possibility that signals are interfered in the information transmission process depending on the remote antenna in the traditional method, and further improves the safety of the elevator car.
In another embodiment, as shown in fig. 5, there is also provided a coded cable-based elevator communication method, which is described by taking the method as an example applied to the car controller 120 in fig. 1, and includes the following steps:
step S501, second information used for communicating with the control cabinet controller is determined.
The second information includes a control execution result of the car 150, position information of the car 150, internal registration information such as a distress signal and a call signal in the car 150, current car physical information detected by a sensor, and the like. For example, the car controller 120 may receive a floor signal input by an elevator user through an input device as the second information.
Step S502, a second modulator is used for modulating second information into an electromagnetic induction driving signal of an electromagnetic induction device; the electromagnetic induction device is installed on the car.
In this step, the second information sent by the car controller 120 is modulated by the second modem and then transmitted to the electromagnetic induction device as a driving signal of the electromagnetic induction device.
Specifically, the second information sent by the car controller 120 is modulated by the second modem and then transmitted to the second power amplifying device, and the modulated signal is amplified by the second power amplifying device and then transmitted to the electromagnetic induction device, which may be an antenna, as a driving signal of the electromagnetic induction device. The modulation method may be FSK, 2DPSK, or other various methods.
Step S503, driving the electromagnetic induction device by using the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field by the first demodulator to obtain the second information, and then transmits the second information to the control cabinet controller.
In this step, the electromagnetic induction device driving signal generates an alternating current in the electromagnetic induction device, and as known from the electromagnetic induction principle, the alternating current generates an electromagnetic wave, so the electromagnetic induction device can generate a corresponding second electromagnetic field according to the alternating current, and the second electromagnetic field generates a magnetic flux change at a position corresponding to the encoding cable 130, so that the encoding cable 130 generates a second electromagnetic induction signal corresponding to the second electromagnetic field, and the second electromagnetic induction signal is received and amplified by the first power amplification device connected to the encoding cable 130, transmitted to the first modem, demodulated to obtain the second information, and received by the cabinet controller 110.
Alternatively, internal registration information such as a distress signal and a call signal in the car 150 and current physical information of the car detected by the sensor may be transmitted as the above-described second information to the line by communication transmission in the code cable 130.
In the above embodiment, the car controller 120 installed on the car 150 determines the second information according to the current state of the elevator, and the second information is modulated by the second modem and then sent to the encoding cable 130 through the electromagnetic induction driving device for transmission, and finally received by the controlled cabinet controller 110 after being demodulated by the first modem, so that the communication between the car and the controlled cabinet controller is realized.
In another embodiment, the encoded cable 130 may include an address transmission pair line, as shown in fig. 3c, for generating a second electromagnetic induction signal corresponding to a different address code when the cars are at different heights;
specifically, when the electromagnetic induction device, for example, may be an antenna coil, an alternating current is applied to the antenna coil, and an alternating magnetic field is generated near the antenna coil, and an induced electromotive force is generated in each pair of lines of the encoding cable 130 (a portion close to the antenna coil), as shown in fig. 3c, since the number of crossings of each pair of address transmission lines is different, phases of induced signals detected at receiving ports of the address transmission lines are different, and the current position of the antenna coil of the car 150 is obtained by detecting the phase and the amplitude of the induced signal. In the process of detecting signals of address transmission paired lines, signals of an R0 reference line are used as standard signals, phase comparison is carried out on signals of all address lines G, the phases are the same to be '0', the phases are opposite to be '1', a group of data reflecting the position address of an antenna coil is obtained, and every crossing step length W corresponds to a unique address, namely a large address.
To improve the position detection accuracy, a pair of address transmission pairs of the encoding cable 130 is added with the same crossing interval as G0, and the address transmission pairs are staggered by half step length, as shown in fig. 3 c. When alternating current is introduced into a transmitting coil in the antenna box, induced electromotive forces generated by the address lines G0 and Gx under the action of an electromagnetic field are respectively (the number of turns of a wire core is 1):
wherein, V 0 、V 1 The amplitudes of the electromotive force signals induced on G0 and Gx;
the flux variation amounts passing through the encoding cable cores G0, gx, respectively; b is the magnetic field intensity; s is the effective area of the magnetic field acting on G0 and Gx; x is the moving distance of the antenna transmitting coil, wherein X is smaller than W/2; when the current large address is assumed to be P0 and the moving distance is X, the current absolute position P = P0+ X.
Further, in step S503, the electromagnetic induction driving signal is used to drive the electromagnetic induction device to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the encoding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through the first demodulator to obtain second information, and then transmits the second information to the control cabinet controller, including:
at the current height of the car, the electromagnetic induction driving signal is used for driving the electromagnetic induction device to generate a second electromagnetic field, so that the address transmission pair line generates a second electromagnetic induction signal according to the second electromagnetic field induced at the current height; wherein the content of the first and second substances,
the second electromagnetic induction signal is transmitted to the first demodulator through the address transmission pair line so as to trigger the first demodulator to obtain an address code according to the phase position of the second electromagnetic induction signal, and then the address code is transmitted to the cabinet control controller, so that the cabinet control controller can obtain the current height according to the address code.
In this embodiment, the baseband signal generated by the car controller 120 is amplified by the second power amplifying device, and then used as an electromagnetic induction driving signal of an electromagnetic induction device, which may be, for example, an antenna, where the antenna generates a second electromagnetic field according to an electromagnetic induction principle, and at the current height of the car 150, the address transmission pair lines in the encoding cable 130 generate a corresponding second electromagnetic induction signal under the action of the second electromagnetic field, where the phase of each pair of address transmission pair lines crosses different times, and the phase received at the receiving end also changes correspondingly, the receiving end receives the signal of each pair of address transmission pair lines, and after being amplified by the first power amplifying device, the signal is subjected to phase detection by the first demodulator to obtain an address code corresponding to the height of the current car 150, and after being received by the address code cabinet controller 110, the address code is analyzed to obtain the height of the current elevator.
The above embodiment can acquire the absolute position of the current elevator through the address transmission pair line in the coded cable 130, and compared with the prior art that only the position of the flat floor where the car is located can be acquired more accurately, the safety of elevator users is further improved.
In one embodiment, the different heights include heights corresponding to different levels; the different address codes comprise address codes corresponding to different levels; the method further comprises the following steps:
and when the control cage traverses each flat floor and moves to each flat floor, the control cabinet controller 110 records the address code corresponding to each flat floor to obtain different address codes.
In the embodiment, when an elevator car 150 runs to the bottommost floor leveling position, the cabinet control controller 110 acquires the address code of the current elevator position through the coded cable 130 and records the address code as a first floor, and the position data of the corresponding coded cable is recorded as P1 \8230; \8230, the study is sequentially performed on each floor leveling, the height of the coded cable corresponding to the leveling of the Nth floor is recorded as PN, the position address code of the Nth floor is acquired, and the one-to-one corresponding relationship between each floor leveling and the position data of the coded cable can be obtained by traversing each floor and repeatedly recording; meanwhile, the distance between each floor can be obtained by calculation according to the length of the coded cable.
In the embodiment, the control cabinet controller 110 repeatedly obtains the relationship between the address code of the floor leveling position and the current height of the lift car 150 to obtain the code of each floor leveling position, so that the self-learning of the lift car position is completed, and a foundation is laid for automatically identifying the current leveling of the lift car according to the obtained elevator position code.
It should be understood that although the steps in the flowcharts of fig. 2 to 5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 to 5 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 6, there is provided a coded cable-based elevator communication device 600 applied to a cabinet controller 110, including:
a first information determination module 601 for determining first information for communication with the car controller;
a first signal modulation module 602, configured to modulate the first information into a cable driving signal of a coded cable by using a first modulator;
the first information demodulation module 603 is configured to drive the encoding cable by using the cable driving signal to generate a first electromagnetic field corresponding to the cable driving signal, so that the electromagnetic induction device mounted on the car demodulates the first electromagnetic induction signal corresponding to the first electromagnetic field by using the second demodulator to obtain first information, and transmits the first information to the car controller.
In an embodiment, the apparatus 600 may further include: the command acquisition unit is used for acquiring the current position of the car when the car is detected to generate a preset event; the current position is transmitted to the control cabinet controller by the car controller through the coding cable; determining a nearest adjacent flat floor of the car according to the current position; obtaining a moving instruction of the lift car according to the nearest adjacent flat floor;
the first information determining module 601 is further configured to obtain first information carrying the moving instruction; wherein the first information is used for instructing the car controller to control the car to move to the nearest adjacent flat floor.
In one embodiment, as shown in fig. 7, there is provided a coded cable based elevator communication device 700 for use in a car controller 120, comprising:
a second information determining module 701, configured to determine second information for communicating with the control cabinet controller;
a second signal modulation module 702, configured to modulate the second information into an electromagnetic induction driving signal of the electromagnetic induction apparatus by using a second modulator;
the second information demodulation module 703 is configured to drive the electromagnetic induction device with the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through the first demodulator to obtain second information, and then transmits the second information to the control cabinet controller.
In another embodiment, the encoded cable includes an address transmission pair line; the address transmission pair line is used for generating second electromagnetic induction signals corresponding to different address codes when the elevator car is at different heights;
the second information demodulation module 703 is further configured to drive the electromagnetic induction device to generate a second electromagnetic field by using the electromagnetic induction driving signal at the current height of the car, so that the address transmission pair line generates a second electromagnetic induction signal according to the second electromagnetic field induced at the current height; the second electromagnetic induction signal is transmitted to the first demodulator through the address transmission pair line so as to trigger the first demodulator to obtain an address code according to the phase position of the second electromagnetic induction signal, and then the address code is transmitted to the control cabinet controller, so that the control cabinet controller can obtain the current height according to the address code.
In another embodiment, the different heights include heights corresponding to different levels; the different address codes comprise address codes corresponding to different levels; the apparatus 700 further comprises:
and the address code recording unit is used for controlling the lift car to traverse each flat layer and recording the address codes corresponding to each flat layer by the control cabinet controller when the lift car moves to each flat layer to obtain different address codes.
For the specific definition of the elevator communication device based on the coded cable, reference may be made to the above definition of the elevator communication method based on the coded cable, which is not described herein again. The various modules in the above-described coded cable based elevator communication device may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a controller is provided, which may be a cabinet controller 110 or a car controller 120, and the internal structure thereof may be as shown in fig. 8. The controller includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the controller is configured to provide computational and control capabilities. The memory of the controller comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the controller is used for communicating with external devices through network connection. The computer program is executed by a processor to implement a coded cable based elevator communication method.
Those skilled in the art will appreciate that the architecture shown in fig. 8 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a cabinet controller is provided, which includes a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the following steps:
determining first information for communicating with a car controller;
modulating the first information into a cable driving signal of the coded cable by using a first modulator;
the cable driving signal is used for driving the coding cable to generate a first electromagnetic field corresponding to the cable driving signal, so that the electromagnetic induction device arranged on the lift car demodulates the first electromagnetic induction signal corresponding to the first electromagnetic field through the second demodulator to obtain first information, and then the first information is transmitted to the lift car controller
In one embodiment, the processor, when executing the computer program, further performs the steps of:
when the car is detected to have a preset event, acquiring the current position of the car; the current position is transmitted to a control cabinet controller by the car controller through a coding cable;
determining a nearest adjacent flat floor of the car according to the current position;
obtaining a control command for the car according to the nearest adjacent flat layer;
acquiring first information carrying the control instruction; the first information is used for indicating the car controller to control the car to execute the operation corresponding to the control command.
In one embodiment, a car controller is provided comprising a memory and a processor, the memory storing a computer program that when executed by the processor performs the steps of:
determining second information for communicating with the control cabinet controller;
modulating the second information into an electromagnetic induction driving signal of the electromagnetic induction device by using a second modulator; the electromagnetic induction device is arranged on the lift car;
the electromagnetic induction driving signal is used for driving the electromagnetic induction device to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through the first demodulator to obtain second information, and then the second information is transmitted to the control cabinet controller
In one embodiment, the processor when executing the computer program further performs the steps of:
at the current height of the car, driving an electromagnetic induction device to generate a second electromagnetic field by using an electromagnetic induction driving signal so as to enable an address transmission pair line to generate a second electromagnetic induction signal according to the second electromagnetic field induced at the current height; wherein the content of the first and second substances,
the second electromagnetic induction signal is transmitted to the first demodulator through the address transmission pair line so as to trigger the first demodulator to obtain an address code according to the phase position of the second electromagnetic induction signal, and then the address code is transmitted to the cabinet control controller, so that the cabinet control controller can obtain the current height according to the address code.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
the control cage traverses each flat layer and records the corresponding address code of each flat layer by the control cabinet controller when moving to each flat layer to obtain different address codes
In one embodiment, as shown in fig. 1, an elevator system is provided, comprising a console controller 110, a car controller 120, and a coded cable 130; the code cable 130 is used for communication between the console controller 110 and the car controller 120.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any of the methods described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 application, 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 a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An elevator communication method based on a coded cable is applied to a control cabinet controller, and the method comprises the following steps:
determining first information for communicating with a car controller; the first information comprises a control signal for the car and a reminder or notification signal for an elevator user;
modulating the first information into a cable driving signal of a coded cable by using a first modulator;
the cable driving signal is used for driving the coding cable to generate a first electromagnetic field corresponding to the cable driving signal, so that an electromagnetic induction device mounted on the car demodulates a first electromagnetic induction signal corresponding to the first electromagnetic field through a second demodulator to obtain first information, and then the first information is transmitted to the car controller;
when a preset event of the car is detected, acquiring the current position of the car; the current position is transmitted to the control cabinet controller by the car controller through the coding cable;
determining a nearest adjacent flat floor of the car according to the current position;
obtaining a control command for the car according to the nearest adjacent flat layer;
the determining first information in communication with a car controller includes:
acquiring first information carrying the control instruction; the first information is used for indicating the car controller to control the car to execute the operation corresponding to the control command.
2. An elevator communication method based on a coded cable is applied to a car controller, and the method comprises the following steps:
determining second information for communicating with the control cabinet controller; the second information includes a control execution result on the car and position information of the car;
modulating the second information into an electromagnetic induction driving signal of an electromagnetic induction device by using a second modulator; the electromagnetic induction device is arranged on the lift car;
the electromagnetic induction driving signal is used for driving the electromagnetic induction device to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through a first demodulator to obtain second information, and then the second information is transmitted to the control cabinet controller;
further comprising:
when a preset event of the car is detected, the position information is transmitted to the control cabinet controller through the coding cable;
acquiring a control instruction which is transmitted by the control cabinet controller and aims at the car; and the car control command is obtained by the control cabinet controller according to the nearest adjacent flat layer of the car determined by the position information and the nearest adjacent flat layer.
3. The method of claim 2, wherein the encoded cable comprises an address transmission pair line; the address transmission pair line is used for generating second electromagnetic induction signals corresponding to different address codes when the elevator car is at different heights;
the driving of the electromagnetic induction device by the electromagnetic induction driving signal to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal so that the second electromagnetic induction signal corresponding to the second electromagnetic field is demodulated by the encoding cable through the first demodulator to obtain the second information, and then the second information is transmitted to the control cabinet controller includes:
at the current height of the car, the electromagnetic induction driving signal is utilized to drive the electromagnetic induction device to generate a second electromagnetic field, so that the address transmission pair line generates a second electromagnetic induction signal according to the second electromagnetic field induced at the current height; wherein, the first and the second end of the pipe are connected with each other,
the second electromagnetic induction signal is transmitted to the first demodulator through the address transmission pair line so as to trigger the first demodulator to obtain an address code according to the phase of the second electromagnetic induction signal, and then the address code is transmitted to the control cabinet controller, so that the control cabinet controller obtains the current height according to the address code.
4. The method of claim 3, wherein the different heights comprise heights corresponding to different levels; the different address codes comprise address codes corresponding to different levels; the method further comprises the following steps:
and controlling the car to traverse each flat layer and recording the address codes corresponding to each flat layer by the control cabinet controller when the car moves to each flat layer to obtain the different address codes.
5. An elevator communication device based on a coded cable, which is applied to a cabinet control controller, and the device comprises:
a first information determination module for determining first information for communication with a car controller; the first information comprises a control signal for the car and a reminder or notification signal for an elevator user;
the first signal modulation module is used for modulating the first information into a cable driving signal of the coded cable by using a first modulator;
the first information demodulation module is used for driving the coding cable to generate a first electromagnetic field corresponding to the cable driving signal by using the cable driving signal, so that an electromagnetic induction device mounted on the car demodulates a first electromagnetic induction signal corresponding to the first electromagnetic field through a second demodulator to obtain first information, and then transmits the first information to the car controller;
further comprising: the command acquisition unit is used for acquiring the current position of the car when the car is detected to have a preset event; the current position is transmitted to the control cabinet controller by the car controller through the coding cable; determining a nearest adjacent flat floor of the car according to the current position; obtaining a moving instruction of the car according to the nearest adjacent flat layer;
the first information determining module is further configured to obtain first information carrying the moving instruction; wherein the first information is used for instructing the car controller to control the car to move to the nearest adjacent flat floor.
6. An elevator communication device based on a coded cable, applied to a car controller, the device comprising:
the second information determining module is used for determining second information communicated with the control cabinet controller; the second information includes a control execution result of the car and position information of the car;
the second signal modulation module is used for modulating the second information into an electromagnetic induction driving signal of the electromagnetic induction device by using a second modulator;
the second information demodulation module is used for driving the electromagnetic induction device to generate a second electromagnetic field corresponding to the electromagnetic induction driving signal by using the electromagnetic induction driving signal, so that the coding cable demodulates the second electromagnetic induction signal corresponding to the second electromagnetic field through the first demodulator to obtain second information carrying effective information, and then transmits the second information to the control cabinet controller;
the elevator communication device based on the coded cable is also used for transmitting the position information to the control cabinet controller through the coded cable when a preset event of the car is detected; acquiring a control command which is transmitted by the control cabinet controller and aims at the car; and the car control command is obtained by the control cabinet controller according to the nearest adjacent flat layer of the car determined by the position information and the nearest adjacent flat layer.
7. A control cabinet controller comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of claim 1 when executing the computer program.
8. A car controller comprising a memory and a processor, the memory storing a computer program, characterized in that the processor when executing the computer program realizes the steps of the method of any of claims 2 to 4.
9. An elevator system comprising the control cabinet controller of claim 7, and the car controller of claim 8, and a coded cable; wherein, the code cable is used for the switch board controller with the car controller communicates.
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| CN202010680534.9A CN111891861B (en) | 2020-07-15 | 2020-07-15 | Elevator communication method, device, controller and system based on coded cable |
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