CN110817626A - Signal interface unit for elevator drive control, control device and elevator system - Google Patents
Signal interface unit for elevator drive control, control device and elevator system Download PDFInfo
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- CN110817626A CN110817626A CN201810902500.2A CN201810902500A CN110817626A CN 110817626 A CN110817626 A CN 110817626A CN 201810902500 A CN201810902500 A CN 201810902500A CN 110817626 A CN110817626 A CN 110817626A
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- signal
- interface unit
- elevator
- signal interface
- motor
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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
- B66B1/3423—Control system configuration, i.e. lay-out
-
- 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
- B66B1/46—Adaptations of switches or switchgear
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention relates to a signal interface unit for elevator drive control, an elevator control device and an elevator system. The signal interface unit includes: a signal input for receiving two or more signals including an encoder signal for elevator drive control, a brake switch signal, a motor winding temperature signal, a car rope load status signal, an elevator rope status signal; a signal processing unit connected to the signal input unit for processing the signal; and the signal output part is connected with the signal processing part and is used for outputting the processed signals outwards. The invention can obviously reduce the number of cables on site, optimize the cable layout, contribute to improving the processing efficiency of various signals, eliminate the hidden trouble and enhance the safety performance of the elevator.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a signal interface unit for elevator drive control, an elevator control device and an elevator system.
Background
Elevators have been widely used in modern society, and great convenience is brought to work and daily life of people. However, these existing elevator installations themselves still have drawbacks and disadvantages, which can be further improved and optimized.
For example, the present inventors have found that a number of cables are arranged in an elevator installation, which cables are not only numerous and take up a large amount of space, but also have a complicated connection relationship and therefore are likely to form a fault risk that is difficult to identify and eliminate, which puts stress on the operation and maintenance work of the elevator. In addition, the inventor also finds that the existing elevator driving control device has single function and cannot monitor and utilize more elevator operation information to improve the control level of the elevator. It is noted that the foregoing is described herein merely for the purpose of enabling a fuller understanding of the present invention and that no such description or appreciation as pertains to the prior art should be considered as belonging to the present art.
Disclosure of Invention
In view of the above, the present invention provides a signal interface unit for elevator drive control, an elevator control apparatus, and an elevator system, which solve or at least alleviate one or more of the above problems and other problems in the prior art.
First, according to a first aspect of the present invention, there is provided a signal interface unit for elevator drive control, the signal interface unit comprising:
a signal input for receiving two or more signals including an encoder signal for elevator drive control, a brake switch signal, a motor winding temperature signal, a car rope load status signal, an elevator rope status signal;
a signal processing unit connected to the signal input unit for processing the signal; and
and the signal output part is connected with the signal processing part and is used for outputting the processed signals outwards.
In the signal interface unit according to the present invention, optionally, the signal output section outputs the processed signal to the outside through a cable having 4 or more core wires which transmits the processed signal in a serial communication manner.
In the signal interface unit according to the present invention, optionally, both ends of the cable are connected to the signal output part and a drive control device for driving an elevator, respectively.
In the signal interface unit according to the invention, optionally, the signal interface unit is provided with a memory storing attribute information and/or characteristic parameters of at least one of an encoder, a brake switch, a motor and an elevator brake, the attribute information of the motor including at least type information of the motor connected to a drive control device for driving an elevator, the memory being connected to the signal output for retrieving the attribute information of the motor from the memory via the signal output when the drive control device is activated.
In the signal interface unit according to the present invention, optionally, the signal interface unit is provided with a memory which is connected to the signal output section and stores one or more of the signals for a preset time period.
In the signal interface unit according to the present invention, optionally, the signal interface unit is provided with a memory in which at least attribute information of at least one of an encoder, a brake switch, a motor and an elevator brake, and one or more of the signals within a preset time period are stored, the attribute information of the motor includes at least type information of the motor connected to a drive control device for driving an elevator, and the memory is connected to the signal output section for obtaining the attribute information of the motor from the memory via the signal output section when the drive control device is activated.
In the signal interface unit according to the present invention, optionally, the signal interface unit further includes a power supply module that supplies power to an encoder for elevator drive control.
In the signal interface unit according to the present invention, optionally, the signal interface unit is provided with an extension interface for receiving a signal and connected to the signal processing section, and/or is provided with a debug interface for debugging the signal interface unit and connected to the signal processing section.
In the signal interface unit according to the present invention, optionally, the car rope load status signal comprises a car rope head impedance signal, and the motor winding temperature signal comprises a motor stator winding temperature signal, a motor rotor winding temperature signal, and a combination thereof.
In the signal interface unit according to the present invention, optionally, the signal interface unit employs a PCB circuit board.
Secondly, according to a second aspect of the invention, it provides an elevator control apparatus comprising a signal interface unit as defined in any one of the preceding claims.
Further, according to a third aspect of the invention, there is also provided an elevator system comprising a signal interface unit as defined in any one of the above, or an elevator control as defined above.
The principles, features, characteristics, advantages and the like of various aspects according to the present invention will be clearly understood from the following detailed description taken in conjunction with the accompanying drawings. For example, it will be appreciated that the signal interface unit, the elevator control device and the elevator system designed and provided by the invention have quite obvious technical advantages compared with the prior art, not only can the number of cables on site be remarkably reduced, the arrangement space be saved and the cable cost be reduced, but also the original complex cable connection layout can be simplified, the processing efficiency of various signals can be improved and the hidden trouble can be eliminated, which will bring great convenience to the operation and maintenance work of the elevator. In addition, the signal interface unit and the elevator control device can monitor and utilize more elevator running signals, so that the elevator can be controlled more quickly, accurately and efficiently, and the safety performance of the elevator is enhanced.
Drawings
The present invention will be described in further detail below with reference to the drawings and examples, but it should be understood that the drawings are designed solely for purposes of illustration and are not necessarily drawn to scale, but rather are intended to conceptually illustrate the structural configurations described herein.
Fig. 1 is a schematic view of a connection arrangement for providing an embodiment of a signal interface unit according to the invention in an example of an elevator system.
Detailed Description
First of all, it should be noted that the composition, characteristics and advantages of the signal interface unit for elevator drive control, the elevator control apparatus and the elevator system according to the invention, etc. will be described below by way of example, but all the descriptions should not be construed to form any limitation on the invention.
Furthermore, to any single feature described or implicit in an embodiment herein or shown or implicit in any single feature or features shown or implicit in the drawings, the invention still allows any combination or permutation to be continued between the features (or their equivalents) without any technical barriers, and thus further embodiments according to the invention should be considered within the scope of this disclosure.
Referring to fig. 1, there is shown an embodiment of a signal interface unit according to the present invention and schematically illustrating the connection arrangement of the embodiment with other components or devices in an example elevator system.
In this embodiment, the signal interface unit 1 may include a signal input section, a signal processing section, and a signal output section. Wherein the signal input is arranged to receive signals, such signals may include, but are not limited to, two or more signals that may be used for elevator drive control, such as encoder 5 signals, Brake Switch 6 signals, motor winding 7 temperature signals, car load on rope (Hitch load weighing) 9 status signals, elevator rope (Belt) 8 status signals, which are shown in fig. 1 in connection with performing elevator drive control. These signals, which may be of different types and mutually distributed, may be detected and collected by means of various sensors, such as temperature sensors, car rope load sensors, or other components, and then input to the signal interface unit 1 via the signal output section described above for processing, respectively.
It should be understood that the signals shown in fig. 1 are for illustrative purposes only, and the present invention allows more types of signals, not shown, to be input into the signal interface unit 1, so as to reduce the number of cables as much as possible, and simplify the connection relationship and layout of the cables, improve the processing efficiency of various types of signals, and eliminate the potential for failure.
Furthermore, in practical applications, the signal input is allowed to receive two or more signals of the same type. For example, the signal input may receive output signals from two or more encoders 5, two or more band-type brake switches 6. For another example, the motor winding 7 temperature signal received by the signal input may be a motor stator winding temperature signal and/or a motor rotor winding temperature signal. In addition, the state signal of the elevator rope 8 can comprise an impedance signal of the rope (such as a steel wire rope and the like), and the on-off condition of a wire harness in the rope can be known by detecting the current impedance of the rope, so that the current safety state of the elevator rope 8 can be analyzed and judged. Of course, the elevator rope 8 status signal may comprise any suitable signal in other forms that reflects the mechanical and/or physical properties of the rope status.
In the signal interface unit 1 shown in fig. 1, the signal processing unit is configured to be connected to the signal input unit and the signal output unit respectively, so as to perform corresponding processing (for example, various numerical calculation processing may be performed, or various processing methods such as merely forwarding the signal from the signal input unit to the signal output unit) on the signal obtained from the signal input unit, and then output the processed signal to the outside through the signal output unit. It is understood that any suitable component (such as various chips, capacitors, resistors, etc.) may be used to implement the functions of the signal processing section, depending on the requirements of the specific application.
In the present embodiment, since various signals are collectively input to the signal processing portion of the signal interface unit 1 for processing, it is not necessary to provide a module, a component, or a device (for example, a PCB for processing a car rope load state signal, a PCB for processing an elevator rope impedance signal, or the like) which is originally separately configured for processing these signals, so that the cost input of these software and hardware can be saved, and the overall structure is more compact and easier to install and maintain. In addition, because the signal interface unit of the invention can simplify the line connection and layout, and shorten the line of the whole system, some modules, components or devices (such as a signal differential processing chip and the like) which are necessary to be arranged because the line is too long before can be removed, the cost can be further reduced, and the potential failure rate can be eliminated.
In an alternative case, the signals which have been processed by the signal output means can be output to the outside via a cable 15, for example, and be transmitted to the drive control device 2, so that the latter can use these signals for evaluation and evaluation for controlling the operation of the elevator. Such a cable 15 may be provided with 4 or more cores, which transmit processed signals in a serial communication manner, for example, in such a manner that signals can be transmitted between the above-described drive control device 2 and the signal interface unit 1.
As an exemplary illustration in fig. 1, the drive control 2 is also connected to a motor 3 for driving the elevator, a brake coil 4 for providing the braking of the elevator, by means of a cable 13, a cable 14, respectively. In the present example, the connection cable shown in fig. 1 may be optimized to only require 3 cables, and the 3 cables together also only require 11 cores, i.e. cable 13 may contain 4 cores (U, V, W, PE), cable 14 may contain 3 cores (rake +, rake-, PE), and cable 15 may have 4 cores for signal transmission respectively.
In contrast, since the prior art requires separate connection cables for transmitting the encoder signal, the band-type brake switch signal, the motor winding temperature signal, the car rope load signal, and the elevator rope resistance signal, it is generally necessary to provide 7 cables, which require at least 26 core wires in total. Therefore, by adopting the technical scheme of the invention, the using quantity of the field cables can be remarkably reduced, the problems of excessive transmission cables, complex and non-compact layout, easy damage, difficult maintenance and the like in the prior art are solved, considerable cable cost can be saved, and the field layout of the cables is improved and optimized.
The general structural composition, operating principle and technical advantages of the signal interface unit according to the invention have been described in detail above by referring to the signal interface unit example shown in fig. 1, but it must be noted that the invention allows for a wide variety of possible flexible designs, changes and adjustments according to the actual application without departing from the gist of the invention.
In some embodiments, for example, a memory may also be provided in the signal interface unit 1, which memory is connected to the signal output and serves for storing property information and/or characteristic parameters of one or more of the encoder, the band-type brake switch, the motor and the elevator brake, wherein the attribute information of the motor may include, but is not limited to, type information of the motor 3 connected to the drive control device 2 and the like, thus, when the drive control device 2 is started, the drive control device 2 can obtain the attribute information of the motor stored in the memory from the memory through the signal output part, therefore, the drive control device 2 can directly and automatically complete the inspection operation without setting corresponding parameters in the drive control device 2, which can bring great convenience and flexibility to the operation, update and maintenance of the system.
In addition, in an optional case, a memory may be provided in the signal interface unit 1 for storing therein a certain signal or signals (e.g., elevator rope state signals, etc.) within a preset time period (e.g., 7 days, 30 days, 90 days, etc., and specific values may be flexibly set or adjusted according to actual needs), so that historical data of the signals may be recorded and analyzed for fault analysis and data support of the signals for preventive maintenance, etc. This will contribute very much to continuous safety monitoring, implement preventive safety maintenance, and can provide measures such as an alarm when an abnormal situation is detected, thereby being able to effectively improve the safety and reliability of the elevator system.
In addition, in an alternative case, a memory may be provided in the signal interface unit 1, and the attribute information and/or characteristic parameters of one or more of the encoder, the brake switch, the motor and the elevator brake, and the signal during the preset time period may be simultaneously stored in the memory, so that the functions discussed above can be combined, and a description thereof will not be repeated.
It should be noted that, as for the memories described in the above, not only can they be provided in the signal interface unit 1 and made independent of the signal processing section in practical use, and then the information data stored therein can be called up from the memory by the signal processing section when necessary, but also the memories can be directly integrated into the signal processing section of the signal interface unit 1.
For another example, in some embodiments, a power module for supplying power to the encoder 5 may be disposed in the signal interface unit 1, and such a power module may be implemented by using, for example, a 5V power chip. Thus, the power supply module is arranged in the signal interface unit 1, so that the working performance of the power supply module can be ensured and improved, because the distance from the power supply cable to the encoder 5 is shorter than the distance from the drive control device 2 to provide power supply, namely, the cable length is reduced when the drive control device 2 is adopted to provide power supply in the traditional mode, the anti-interference capability of the power supply is enhanced, more stable and more accurate electric energy can be provided for the encoder 5, and the peripheral layout of the encoder 5 can be further optimized.
Further, in some embodiments, an expansion interface 11 and/or a debug interface 12 connected to the signal processing section may be provided at the signal interface unit 1. Wherein the expansion interface 11 is arranged to receive signals so that the signal interface unit 1 has a better expandability to be suitable for more applications, i.e. it can receive and process more types of signals and then output them via the signal output to a component, device or equipment, e.g. the drive control means 2, whereby the status of more components, devices or equipment in the elevator system can be monitored, whereby the operation, scheduling and maintenance operations of the elevator can be further diagnosed, optimized. It is quite advantageous for the debug interface 12 to provide the signal interface unit 1 with the functionality to debug it when needed, for use, updating, maintenance, etc. of the signal interface unit 1.
In addition, in some embodiments, the signal interface unit 1 may be implemented using a PCB circuit board. Of course, in some embodiments, the invention also allows the signal interface unit 1 to be implemented in other hardware, software or a combination of hardware and software, or integrated into other components, devices or apparatuses in the elevator system.
As a further aspect of the invention, which is clearly superior to the prior art, the invention also provides an elevator control arrangement which can comprise a signal interface unit designed to be provided according to the invention in order to take advantage of the significant technical advantages of the solution according to the invention, as described above. In a particular embodiment, such an elevator control can be arranged at any suitable location in the elevator system, e.g. disposed in an elevator control machine room.
The invention also provides an elevator system in which a signal interface unit or an elevator control device designed according to the invention as described above can be provided, which results in the above-discussed technical advantages significantly over the prior art.
The signal interface unit for elevator drive control, the elevator control device and the elevator system according to the present invention have been explained in detail above by way of examples only, which are provided only for illustrating the principles of the present invention and its embodiments, not for limiting the present invention, and those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to be included within the scope of this invention and defined in the claims which follow.
Claims (12)
1. A signal interface unit for elevator drive control, the signal interface unit comprising:
a signal input for receiving two or more signals including an encoder signal for elevator drive control, a brake switch signal, a motor winding temperature signal, a car rope load status signal, an elevator rope status signal;
a signal processing unit connected to the signal input unit for processing the signal; and
and the signal output part is connected with the signal processing part and is used for outputting the processed signals outwards.
2. The signal interface unit according to claim 1, wherein the signal output section outputs the processed signal to the outside through a cable having 4 or more core wires which transmits the processed signal in a serial communication manner.
3. The signal interface unit according to claim 2, wherein both ends of the cable are connected to the signal output part and a driving control device for driving an elevator, respectively.
4. The signal interface unit according to claim 1, wherein the signal interface unit is provided with a memory storing property information and/or characteristic parameters of at least one of an encoder, a brake switch, a motor and an elevator brake, the property information of the motor including at least type information of the motor connected to a drive control device for driving an elevator, the memory being connected to the signal output for retrieving the property information of the motor from the memory via the signal output when the drive control device is activated.
5. The signal interface unit according to claim 1, wherein the signal interface unit is provided with a memory which is connected to the signal output section and stores one or more of the signals for a preset period of time.
6. The signal interface unit according to claim 1, wherein the signal interface unit is provided with a memory in which at least one or more of attribute information and/or characteristic parameters of at least one of an encoder, a brake switch, a motor and an elevator brake, and the signal within a preset time period are stored, the attribute information of the motor includes at least type information of the motor connected to a drive control device for driving an elevator, and the memory is connected to the signal output section for retrieving the attribute information of the motor from the memory via the signal output section upon activation of the drive control device.
7. The signal interface unit of claim 1, wherein the signal interface unit further comprises a power module that provides power to an encoder for elevator drive control.
8. The signal interface unit according to claim 1, wherein the signal interface unit is provided with an extension interface for receiving signals and connected to the signal processing section, and/or is provided with a debug interface for debugging the signal interface unit and connected to the signal processing section.
9. The signal interface unit of claim 1, wherein the car roping load status signal comprises a car roping impedance signal, and the motor winding temperature signal comprises a motor stator winding temperature signal, a motor rotor winding temperature signal, and combinations thereof.
10. The signal interface unit of claim 1, wherein the signal interface unit employs a PCB circuit board.
11. Elevator control, characterized in that it comprises a signal interface unit according to any of claims 1-10.
12. Elevator system, characterized in that the elevator system comprises a signal interface unit according to any of claims 1-10 or comprises an elevator control according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810902500.2A CN110817626A (en) | 2018-08-09 | 2018-08-09 | Signal interface unit for elevator drive control, control device and elevator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810902500.2A CN110817626A (en) | 2018-08-09 | 2018-08-09 | Signal interface unit for elevator drive control, control device and elevator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110817626A true CN110817626A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810902500.2A Pending CN110817626A (en) | 2018-08-09 | 2018-08-09 | Signal interface unit for elevator drive control, control device and elevator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110817626A (en) |
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2018
- 2018-08-09 CN CN201810902500.2A patent/CN110817626A/en active Pending
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Application publication date: 20200221 |