CN103253574B - Elevator car speed and location monitoring system - Google Patents
Elevator car speed and location monitoring system Download PDFInfo
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- CN103253574B CN103253574B CN201310157739.9A CN201310157739A CN103253574B CN 103253574 B CN103253574 B CN 103253574B CN 201310157739 A CN201310157739 A CN 201310157739A CN 103253574 B CN103253574 B CN 103253574B
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Abstract
The invention provides a kind of elevator car speed and location monitoring system, comprise elevator control panel, wherein, also comprise magnetic railings ruler, described magnetic railings ruler comprises grid chi, magnetic induction sensor and control capsule; The grid chi of magnetic railings ruler is suspended in elevator hoistways from hoistway plan vertical, described magnetic induction sensor is fixed on car outer wall, and be connected to elevator control panel by control capsule, for the First Speed value of the described lift car collected and primary importance value are sent to described elevator control panel by control capsule; Described elevator control panel is for receiving described First Speed value and primary importance value and carrying out speed and monitoring position by described First Speed value and primary importance value to described lift car.The present invention accurately can detect actual speed and the current location of car, and safety and reliability is very high.
Description
Technical field
The present invention relates to elevator control technology field, particularly relate to a kind of elevator car speed and location monitoring system.
Background technology
The operation of elevator controls motor by frequency converter according to the velocity curve preset in apparatus for controlling elevator to rotate, thus adjust the running velocity of car, controls cage operation to the position of specifying.
During elevator runs, the control rate of any instant and control position can be acquired from the pulse coder motor shaft by frequency converter, monitoring is carried out to the real-world operation speed of elevator and actual position and need collect accurate velocity amplitude and accurate run location, traditional elevator car speed and monitoring position are all adopt the technology of installing coder on velocity limiter, this technology directly cannot obtain actual speed and the position of car, but speed and the position of car is indirectly obtained by the speed of measuring steel wire rope, owing to often there is the problem that steel rope skids when elevator runs, there is error in the car real-world operation velocity amplitude collected and the control rate value of frequency converter, when particularly express elevator stops suddenly in running, steel rope skids serious, the car position value error that car actual position value and frequency converter calculate is larger, to the safe operation of elevator, there is considerable influence.
Summary of the invention
Based on this, the invention provides a kind of elevator car speed and location monitoring system, actual speed and the current location of car accurately can be detected, safety and reliability is very high.
A kind of elevator car speed and location monitoring system, comprise elevator control panel, wherein, also comprise magnetic railings ruler, described magnetic railings ruler comprises grid chi, magnetic induction sensor and control capsule;
The grid chi of magnetic railings ruler is suspended in elevator hoistways from hoistway plan vertical, described magnetic induction sensor is fixed on car outer wall, and be connected to elevator control panel by control capsule, for the First Speed value of the described lift car collected is sent to described elevator control panel by control capsule;
Described elevator control panel is for receiving described First Speed value and primary importance value; And second speed value and the second place value of lift car is obtained by the coder be arranged on motor shaft; Described First Speed value and second speed value are compared, speed monitoring is carried out to described lift car; Described primary importance value and second place value are compared, monitoring position is carried out to described lift car;
Described elevator control panel also for:
When elevator cage operation is to the end station position of presetting, if the described First Speed value received is greater than default normal retardation curve speed, then send ramp to stop instruction, control lift car and slow down according to the special deceleration/decel preset;
Set the location parameter of a distance end station simultaneously, in this position range, if the lift car First Speed value got still is greater than the speed of default special retardation curve, and the lift car second speed value got by the coder be arranged on motor shaft is greater than default safety threshold velocity, then disconnect safety return circuit, lift car described in the urgent stop of control brake band-type brake.
Above-mentioned elevator car speed and location monitoring system, the grid chi of magnetic railings ruler is suspended on magnetic induction sensor in elevator hoistways from hoistway plan vertical and is fixed on car outer wall, magnetic induction sensor is mobile with cage operation, magnetic induction sensor collects values for actual speed and the present position values of car by grid chi, elevator control panel is connected to by control capsule, elevator control panel therefore can precise acquisition to values for actual speed during cage operation and current location, elevator control panel can carry out a series of effective dual monitoring to elevator car speed and position by this values for actual speed and position, the safety and reliability of system is very high.
Accompanying drawing explanation
Fig. 1 is elevator car speed of the present invention and location monitoring system structural representation in one embodiment.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, be elevator car speed of the present invention and location monitoring system structural representation in one embodiment, comprise elevator control panel 12, wherein, also comprise magnetic railings ruler 11, described magnetic railings ruler 11 comprises grid chi 111, magnetic induction sensor 112 and control capsule 113;
The grid chi 111 of magnetic railings ruler 11 is suspended in elevator hoistways from hoistway plan vertical, described magnetic induction sensor 112 is fixed on car outer wall, and be connected to elevator control panel 12 by control capsule 113, for the First Speed value of the described lift car collected and primary importance value are sent to described elevator control panel 12 by control capsule 113;
Described elevator control panel 12 is for receiving described First Speed value and primary importance value and carrying out speed and monitoring position by described First Speed value and primary importance value to described lift car;
In the present embodiment, grid chi 111 is suspended in elevator hoistways from hoistway plan vertical, magnetic induction sensor 112 is fixed on car outer wall, when car movement, magnetic induction sensor 112 is with car movement, through grid chi 111 when magnetic induction sensor 112 moves, therefore magnetic railings ruler 11 can precise acquisition to the values for actual speed of car and current location, be above-mentioned First Speed value and primary importance value; Magnetic induction sensor 112 is connected to elevator control panel 12 by control capsule 113, and the real-time speed value of the car collected and present position values are sent to elevator control panel 12; After the First Speed value that elevator control panel 12 receives car and primary importance value, by this First Speed value and primary importance value, the dual monitoring of a series of speed and position is carried out to lift car, ensure the safe in operation of lift car.
In a preferred embodiment, described elevator control panel 12 also for:
Second speed value and the second place value of lift car is obtained by the coder be arranged on motor shaft;
By described First Speed value and second speed value with compare, if both differences exceed the speed course latitude error scope of setting, then send ramp to stop instruction;
By described primary importance value and second place value with compare, if both differences exceed the positional error scope of setting, then send ramp to stop instruction;
In the present embodiment, described elevator control panel 12 can read First Speed value and the primary importance value of lift car in real time, simultaneously, during elevator cage operation, control desk can be preset with velocity curve, and control desk controls motor rotation, drives lift car according to the velocity curve motion preset, motor shaft is provided with coder, and this coder is the second speed value of Real-time Collection lift car and second place value also;
First Speed value and second speed value compare by elevator control panel in real time, carry out speed monitoring to described lift car; When both differences exceed the speed course latitude error scope of setting, during the second speed value that such as First Speed value controls higher than control desk, and this difference exceedes default error amount, need send ramp to stop instruction; Elevator control panel is also real-time to be compared primary importance value and second place value, carries out monitoring position to described lift car; When both differences exceed the positional error scope of setting, ramp to stop instruction need be sent; This speed course latitude error scope and positional error scope can be adjusted flexibly by the function code of frequency converter, can adapt to different ladder speed and field condition, significantly improve reliability and the comformability of system.
In a preferred embodiment, described elevator control panel also for:
After sending the shutdown of described ramp to stop instruction control lift car, the current second place value by being arranged on the coder acquisition lift car on motor shaft is updated to the primary importance value collected by described magnetic railings ruler;
Lift car is when high speed sudden stop, often can there is the phenomenon that steel rope skids, thus cause control desk to obtain the second place value of lift car from the coder that is arranged on motor shaft and the current actual bit of lift car is equipped with comparatively big error, if location information corrects not in time, elevator position control inaccuracy in follow-up operation can be caused, there is potential safety hazard; Therefore after elevator is shut down in the present embodiment; the current second place value by being arranged on the coder acquisition lift car on motor shaft is updated to the primary importance value collected by described magnetic railings ruler; ensure that elevator is when high speed sudden stop; skidding due to steel rope causes that the car position value recorded in control desk is inaccurate can be corrected in time; stop potential safety hazard, improve the safety and reliability of system.
In a preferred embodiment, described elevator control panel 12 also can be used for:
When elevator cage operation is to the end station position of presetting, if the described First Speed value received is greater than default normal retardation curve speed, then send ramp to stop instruction, control lift car and slow down according to the special deceleration/decel preset;
Set the location parameter of a distance end station simultaneously, when lift car moves within the scope of default perch from described end station position, if the lift car First Speed value that control desk gets still is greater than the speed of default special retardation curve, and the lift car second speed value got by the coder be arranged on motor shaft is greater than default safety threshold velocity, then disconnect safety return circuit, lift car described in the urgent stop of control brake band-type brake.
In the present embodiment, by setting the normal deceleration/decel of elevator and special deceleration/decel, control desk draw in theory elevator according to the retardation curve of special deceleration/decel and the retardation curve according to normal deceleration/decel.End station position comprises the upstation position and lower end station location of presetting in hoistway, the end station position of lift car through presetting, if the normal retardation curve speed that the lift car First Speed value that control desk gets is preset higher than this position, then control desk sends ramp to stop instruction.Lift car also continues to run behind end station position, therefore the location parameter of setpoint distance upstation and lower end station respectively simultaneously is also needed, from end station position to setting position, in this position range, if the lift car First Speed value that control desk gets still is greater than the speed of special retardation curve, and the lift car second speed value got by the coder be arranged on motor shaft is greater than default safety threshold velocity, then control desk disconnects safety return circuit, controls the urgent stop elevator car of report lock.
In a preferred embodiment, described elevator control panel 12 also can be used for:
When the First Speed value of the described lift car got is greater than 110% of specified elevator speed, sends and force ramp to stop instruction, control described lift car and carry out slowing down and out of service according to the special deceleration/decel preset;
In the present embodiment, lift car is in operational process, Real-time Collection First Speed value, when First Speed value is greater than 110% of specified elevator speed, represents that current elevator speed exceeds the speed limit, elevator speed occurs abnormal, need carry out lift car and force ramp to stop, control car and slow down by the special deceleration/decel preset, and stop it running, can effectively prevent elevator interruption of service, facilitate checkout facility.
In a preferred embodiment, described magnetic induction sensor 112 is connected by CAN with described control capsule 113, described control capsule 113 is connected by CAN with described elevator control panel 12, can transmit the data that magnetic railings ruler 11 gathers and the various control commands transmitting elevator control panel 12 rapidly by CAN communication.
In a preferred embodiment, bottom the grid chi 111 of described magnetic railings ruler 11, also anti-sway device is installed, can prevents the magnetic scale hung from arbitrarily waving uncontrollably.
In a preferred embodiment, described control capsule 113 is arranged on car top.
Elevator car speed of the present invention and location monitoring system, the grid chi of magnetic railings ruler is suspended on magnetic induction sensor in elevator hoistways from hoistway plan vertical and is fixed on car outer wall, magnetic induction sensor is mobile with cage operation, magnetic induction sensor collects the values for actual speed of car by grid chi, elevator control panel 12 is connected to by control capsule, elevator control panel 12 therefore can precise acquisition to values for actual speed during cage operation and current location, elevator control panel 12 can carry out a series of effective monitoring to elevator car speed and position by this values for actual speed and present position values, the safety and reliability of system is very high.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. elevator car speed and a location monitoring system, comprise elevator control panel, it is characterized in that, also comprises magnetic railings ruler, and described magnetic railings ruler comprises grid chi, magnetic induction sensor and control capsule;
The grid chi of magnetic railings ruler is suspended in elevator hoistways from hoistway plan vertical, described magnetic induction sensor is fixed on car outer wall, and be connected to elevator control panel by control capsule, for the First Speed value of the described lift car collected and primary importance value are sent to described elevator control panel by control capsule;
Described elevator control panel is for receiving described First Speed value and primary importance value; And second speed value and the second place value of lift car is obtained by the coder be arranged on motor shaft; Described First Speed value and second speed value are compared, speed monitoring is carried out to described lift car; Described primary importance value and second place value are compared, monitoring position is carried out to described lift car;
Described elevator control panel also for:
When elevator cage operation is to the end station position of presetting, if the described First Speed value received is greater than default normal retardation curve speed, then send ramp to stop instruction, control lift car and slow down according to the special deceleration/decel preset;
Set the location parameter of a distance end station simultaneously, in this position range, if the lift car First Speed value got still is greater than the speed of default special retardation curve, and the lift car second speed value got by the coder be arranged on motor shaft is greater than default safety threshold velocity, then disconnect safety return circuit, lift car described in the urgent stop of control brake band-type brake.
2. elevator car speed according to claim 1 and location monitoring system, is characterized in that, described elevator control panel also for:
Described First Speed value and second speed value are compared, if both differences exceed the speed course latitude error scope of setting, then sends ramp to stop instruction;
Described primary importance value and second place value are compared, if both differences exceed the positional error scope of setting, then sends ramp to stop instruction.
3. elevator car speed according to claim 2 and location monitoring system, is characterized in that, described elevator control panel also for:
When elevator stops, the current second place value by being arranged on the coder acquisition lift car on motor shaft is updated to the primary importance value collected by described magnetic railings ruler.
4. elevator car speed according to claim 1 and location monitoring system, is characterized in that, described elevator control panel also for:
When the First Speed value of the described lift car got is greater than 110% of specified elevator speed, sends and force ramp to stop instruction, control described lift car and carry out slowing down according to described default special deceleration/decel and out of service.
5. elevator car speed according to claim 1 and location monitoring system, is characterized in that, described magnetic induction sensor is connected by CAN with described control capsule, and described control capsule is connected by CAN with described elevator control panel.
6. elevator car speed according to claim 1 and location monitoring system, is characterized in that, also comprise be arranged at elevator pit subtract stroke buffers.
7. elevator car speed according to claim 1 and location monitoring system, is characterized in that, is also provided with anti-sway device bottom the grid chi of described magnetic railings ruler.
8. elevator car speed according to claim 1 and location monitoring system, is characterized in that, described control capsule is arranged on car top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310157739.9A CN103253574B (en) | 2013-04-28 | 2013-04-28 | Elevator car speed and location monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310157739.9A CN103253574B (en) | 2013-04-28 | 2013-04-28 | Elevator car speed and location monitoring system |
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| CN103253574A CN103253574A (en) | 2013-08-21 |
| CN103253574B true CN103253574B (en) | 2016-03-23 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071663B (en) * | 2014-06-19 | 2016-08-24 | 广州特种机电设备检测研究院 | A kind of elevator stopping parameter detection method |
| CN106219347A (en) * | 2016-09-20 | 2016-12-14 | 广州特种机电设备检测研究院 | A kind of detection apparatus and method of elevator malfunction fault |
| CN110127483A (en) * | 2019-05-28 | 2019-08-16 | 苏州台菱电梯有限公司 | A kind of elevator faults rescue system |
| CN110255319A (en) * | 2019-06-05 | 2019-09-20 | 快意电梯股份有限公司 | Elevator position identifying system, method and lift facility |
| CN110271930A (en) * | 2019-06-25 | 2019-09-24 | 快意电梯股份有限公司 | Elevator car slipping rescues automatic detection device and detection method |
| CN110407042A (en) * | 2019-07-26 | 2019-11-05 | 康力电梯股份有限公司 | A kind of high speed ladder terminal subtracts travel control system |
| CN110589643A (en) * | 2019-08-15 | 2019-12-20 | 广东工业大学 | Elevator car re-leveling control system and implementation method thereof |
| CN111532927B (en) * | 2020-03-30 | 2022-04-08 | 日立电梯（中国）有限公司 | Elevator, computer device, readable storage medium and method for controlling car stop |
| CN112299196B (en) * | 2020-10-12 | 2022-07-26 | 广州广日电梯工业有限公司 | Elevator guide rail system with position detection function and position detection method |
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| JP4826687B2 (en) * | 2001-02-19 | 2011-11-30 | 三菱電機株式会社 | Elevator integrated monitoring system |
| CN102997830A (en) * | 2012-10-15 | 2013-03-27 | 蒂森克虏伯机场系统(中山)有限公司 | Synchronous grid detecting device of boarding bridge lifting mechanism |
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| CN2166110Y (en) * | 1992-05-27 | 1994-05-25 | 深圳科用开发有限公司 | Computerized layer-storing device |
| CN101823657A (en) * | 2010-04-30 | 2010-09-08 | 曼斯顿电梯(浙江)有限公司 | Dynamic simulating device for debugging and detecting elevator |
| CN102556784A (en) * | 2011-12-30 | 2012-07-11 | 日立电梯(上海)有限公司 | Elevator brake control device and control method thereof |
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Address after: Nanxiang three road, Science City high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 2 510660 Patentee after: Hitachi building technologies (Guangzhou) Co. Ltd. Address before: Nanxiang Road three Guangzhou Science City 510660 high tech Industrial Development Zone, Guangdong city of Guangzhou province No. 2 Patentee before: Guangzhou Ropente Science and Technology Development Co., Ltd. |