CN103253574A - Elevator car speed and position monitoring system - Google Patents
Elevator car speed and position monitoring system Download PDFInfo
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- CN103253574A CN103253574A CN2013101577399A CN201310157739A CN103253574A CN 103253574 A CN103253574 A CN 103253574A CN 2013101577399 A CN2013101577399 A CN 2013101577399A CN 201310157739 A CN201310157739 A CN 201310157739A CN 103253574 A CN103253574 A CN 103253574A
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Abstract
The invention provides an elevator car speed and position monitoring system. The elevator car speed and position monitoring system comprises an elevator control board. The elevator car speed and position monitoring system further comprises a magnetic grid ruler. The magnetic grid ruler comprises a grid ruler, a magnetic grid sensor and a control box. The grid ruler of the magnetic grid ruler is vertically hung in an elevator well from the top portion of the well. The magnetic grid sensor is fixed on the outer wall of an elevator car, connected to the elevator control board through the control box and used for sending a collected first speed value of the elevator car and a collected first position value of the elevator car to the elevator control board through the control box. The elevator control board is used for receiving the first speed value and the first position value and conducting speed and position monitoring on the elevator car according to the first speed value and the first position value. The elevator car speed and position monitoring system can accurately detect the actual speed and a current position of the elevator car, and is very high in safety and reliability.
Description
Technical field
The present invention relates to the elevator control technology field, particularly relate to a kind of elevator car speed and location monitoring system.
Background technology
The operation of elevator is to be rotated according to velocity curve control motor default in the apparatus for controlling elevator by frequency converter, thereby adjusts the running velocity of car, and the control cage operation is to appointed positions.
The control rate in elevator arbitrary moment in service and control position can be acquired from the pulse coder on the motor shaft by frequency converter, the real-world operation speed of elevator and actual position monitored to collect accurate velocity amplitude and accurate run location, traditional elevator car speed and monitoring position all are to adopt the technology that coder is installed at velocity limiter, this technology can't directly be obtained actual speed and the position of car, but the speed and the position that obtain car by the speed of measuring steel wire rope indirectly, owing to occur the steel rope problem of slip during elevator operation often, there are error in the car real-world operation velocity amplitude that collects and the control rate value of frequency converter, particularly express elevator is in service when stopping suddenly, steel rope skids seriously, the car position value error that car actual position value and frequency converter calculate is bigger, and the safe operation of elevator is had considerable influence.
Summary of the invention
Based on this, the invention provides a kind of elevator car speed and location monitoring system, can accurately detect actual speed and the current location of car, safety and reliability are very high.
A kind of elevator car speed and location monitoring system comprise elevator control panel, wherein, also comprise 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 hung vertically in the elevator hoistways from the hoistway top, described magnetic induction sensor is fixed on the car outer wall, and be connected to elevator control panel by control capsule, first velocity amplitude that is used for the described lift car that will collect is sent to described elevator control panel by control capsule;
Described elevator control panel is for receiving described first velocity amplitude and primary importance value and by described first velocity amplitude and primary importance value described lift car being carried out speed and monitoring position.
Above-mentioned elevator car speed and location monitoring system, the grid chi of magnetic railings ruler is hung vertically in from the hoistway top that magnetic induction sensor is fixed on the car outer wall in the elevator hoistways, magnetic induction sensor moves with cage operation, magnetic induction sensor collects values for actual speed and the current location value of car by the grid chi, be connected to elevator control panel by control capsule, values for actual speed and current location when therefore elevator control panel can accurately collect cage operation, 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, and the safety of system and reliability are very high.
Description of drawings
Fig. 1 is elevator car speed of the present invention and location monitoring system structural representation in one embodiment.
The specific embodiment
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 hung vertically in the elevator hoistways from the hoistway top, described magnetic induction sensor 112 is fixed on the car outer wall, and be connected to elevator control panel 12 by control capsule 113, first velocity amplitude and the primary importance value that are used for the described lift car that will collect are sent to described elevator control panel 12 by control capsule 113;
Described elevator control panel 12 is for receiving described first velocity amplitude and primary importance value and by described first velocity amplitude and primary importance value described lift car being carried out speed and monitoring position;
In the present embodiment, grid chi 111 is hung vertically in the elevator hoistways from the hoistway top, magnetic induction sensor 112 is fixed on the car outer wall, when car movement, magnetic induction sensor 112 is with car movement, through grid chi 111, so magnetic railings ruler 11 can accurately collect values for actual speed and the current location of car, is above-mentioned first velocity amplitude and primary importance value during magnetic induction sensor 112 motion; Magnetic induction sensor 112 is connected to elevator control panel 12 by control capsule 113, and real-time speed value and the current location value of the car that collects sent to elevator control panel 12; After elevator control panel 12 receives first velocity amplitude and primary importance value of car, can carry out the dual monitoring of a series of speed and position to lift car by this first velocity amplitude and primary importance value, guarantee the safe in operation of lift car.
In a preferred embodiment, described elevator control panel 12 also is used for:
By being installed in second speed value and the second place value that coder on the motor shaft obtains lift car;
With described first velocity amplitude and second speed value with compare, if both differences surpass the speed course latitude error scope of setting, then send the ramp to stop instruction;
With described primary importance value and second place value with compare, if both differences surpass the positional error scope of setting, then send the ramp to stop instruction;
In the present embodiment, described elevator control panel 12 can read first velocity amplitude 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 control motor rotation drives lift car according to default velocity curve motion, coder is installed on the motor shaft, and this coder is also gathered second speed value and the second place value of lift car in real time;
Elevator control panel compares first velocity amplitude and second speed value in real time, and described lift car is carried out speed monitoring; When the speed course latitude error scope of both differences above setting, when being higher than the second speed value of control desk control such as first velocity amplitude, and this difference need be sent ramp to stop and instruct above default error amount; Elevator control panel also compares primary importance value and second place value in real time, and described lift car is carried out monitoring position; When both differences surpass the positional error scope of setting, need send the ramp to stop instruction; 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 terraced speed and field condition, significantly improve reliability and the comformability of system.
In a preferred embodiment, described elevator control panel also is used for:
After sending described ramp to stop instruction control lift car and shutting down, be updated to the primary importance value that collects by described magnetic railings ruler with current by being installed in the second place value that coder on the motor shaft obtains lift car;
Lift car is under the situation of high speed sudden stop, the phenomenon that steel rope skids takes place through regular meeting, thereby cause control desk to obtain the current actual bit of the second place value of lift car and lift car and be equipped with than mistake from being installed in coder on the motor shaft, if untimely location information is proofreaied and correct, can cause elevator in follow-up position control inaccuracy in service, have potential safety hazard; Therefore after elevator is shut down in the present embodiment; be updated to the primary importance value that collects by described magnetic railings ruler with current by being installed in the second place value that coder on the motor shaft obtains lift car; ensure that elevator is under the situation of high speed sudden stop; because skidding of steel rope causes inaccurate can the accessing of the car position value that records in the control desk in time to obtain proofreading and correct; stop potential safety hazard, improve safety and the reliability of system.
In a preferred embodiment, described elevator control panel 12 also can be used for:
When elevator cage operation during to default end station location, if described first velocity amplitude that receives, then sends the ramp to stop instruction greater than default normal retardation curve speed, the control lift car slows down according to default special deceleration/decel;
Set the location parameter at a distance end station simultaneously, when lift car moves in the default perch scope from described end station location, if lift car first velocity amplitude that control desk gets access to is still greater than the speed of default special retardation curve, and the lift car second speed value that gets access to by the coder that is installed on the motor shaft is greater than default safety speed threshold value, then disconnect safety return circuit, the described lift car of the control urgent stop of drg band-type brake.
In the present embodiment, by setting normal deceleration/decel and the special deceleration/decel of elevator, control desk is drawn elevator in theory according to the retardation curve of special deceleration/decel with according to the retardation curve of normal deceleration/decel.The end station location comprises upstation position and lower end station location default in the hoistway, lift car is through default end station location, if lift car first velocity amplitude that control desk gets access to is higher than the default normal retardation curve speed in this position, then control desk sends the ramp to stop instruction.Lift car also continues operation after holding station location, therefore also need simultaneously the location parameter at setpoint distance upstation and station, lower end respectively, in the position from the end station location to setting, in this position range, if lift car first velocity amplitude that control desk gets access to is still greater than the speed of special retardation curve, and the lift car second speed value that gets access to by the coder that is installed on the motor shaft is greater than default safety speed threshold value, then control desk disconnects safety return circuit, the urgent stop elevator car of control newspaper lock.
In a preferred embodiment, described elevator control panel 12 also can be used for:
When first velocity amplitude of the described lift car that gets access to greater than specified elevator speed 110% the time, send and force the ramp to stop instruction, control that described lift car slows down according to default special deceleration/decel and out of service;
In the present embodiment, lift car is in operational process, gather in real time first velocity amplitude, when first velocity amplitude greater than specified elevator speed 110% the time, represent current elevator speed hypervelocity, elevator speed occurs unusual, need carry out lift car and force ramp to stop, the control car is pressed default special deceleration/decel deceleration, and stops its operation, can effectively prevent the elevator interruption of service, make things convenient for checkout facility.
In a preferred embodiment, described magnetic induction sensor 112 is connected by the CAN bus with described control capsule 113, described control capsule 113 is connected by the CAN bus with described elevator control panel 12, can transmit the data of magnetic railings ruler 11 collections and the various control commands of transmission elevator control panel 12 rapidly by the CAN communication.
In a preferred embodiment, grid chi 111 bottoms of described magnetic railings ruler 11 also are equipped with anti-sway device, can prevent that the magnetic scale that hangs from arbitrarily waving uncontrollably.
In a preferred embodiment, described control capsule 113 is installed in car top.
Elevator car speed of the present invention and location monitoring system, the grid chi of magnetic railings ruler is hung vertically in from the hoistway top that magnetic induction sensor is fixed on the car outer wall in the elevator hoistways, magnetic induction sensor moves with cage operation, magnetic induction sensor collects the values for actual speed of car by the grid chi, be connected to elevator control panel 12 by control capsule, values for actual speed and current location when therefore elevator control panel 12 can accurately collect cage operation, 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 current location value, and the safety of system and reliability are very high.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.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 (9)
1. an elevator car speed and location monitoring system comprise elevator control panel, it is characterized in that 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 hung vertically in the elevator hoistways from the hoistway top, described magnetic induction sensor is fixed on the car outer wall, and be connected to elevator control panel by control capsule, first velocity amplitude and the primary importance value that are used for the described lift car that will collect are sent to described elevator control panel by control capsule;
Described elevator control panel is for receiving described first velocity amplitude and primary importance value and by described first velocity amplitude and primary importance value described lift car being carried out speed and monitoring position.
2. elevator car speed according to claim 1 and location monitoring system is characterized in that, described elevator control panel also is used for:
By being installed in second speed value and the second place value that coder on the motor shaft obtains lift car;
Described first velocity amplitude and second speed value are compared, if both differences surpass the speed course latitude error scope of setting, then send the ramp to stop instruction;
Described primary importance value and second place value are compared, if both differences surpass the positional error scope of setting, then send the 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 is used for:
When elevator stops, being updated to the primary importance value that collects by described magnetic railings ruler with current by being installed in the second place value that coder on the motor shaft obtains lift car.
4. elevator car speed according to claim 1 and location monitoring system is characterized in that, described elevator control panel also is used for:
When elevator cage operation during to default end station location, if described first velocity amplitude that receives, then sends the ramp to stop instruction greater than default normal retardation curve speed, the control lift car slows down according to default special deceleration/decel;
Set the location parameter at a distance end station simultaneously, in this position range, if the lift car that gets access to first velocity amplitude is still greater than the speed of default special retardation curve, and the lift car second speed value that gets access to by the coder that is installed on the motor shaft is greater than default safety speed threshold value, then disconnect safety return circuit, the described lift car of the control urgent stop of drg band-type brake.
5. elevator car speed according to claim 1 and location monitoring system is characterized in that, described elevator control panel also is used for:
When first velocity amplitude of the described lift car that gets access to greater than specified elevator speed 110% the time, send and force the ramp to stop instruction, control that described lift car slows down according to described default special deceleration/decel and out of service.
6. elevator car speed according to claim 1 and location monitoring system is characterized in that, described magnetic induction sensor is connected by the CAN bus with described control capsule, and described control capsule is connected by the CAN bus with described elevator control panel.
7. elevator car speed according to claim 1 and location monitoring system is characterized in that, also comprise be arranged at elevator pit subtract the stroke energy disperser.
8. elevator car speed according to claim 1 and location monitoring system is characterized in that, the grid chi bottom of described magnetic railings ruler also is equipped with anti-sway device.
9. elevator car speed according to claim 1 and location monitoring system is characterized in that, described control capsule is installed in 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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| CN201310157739.9A CN103253574B (en) | 2013-04-28 | 2013-04-28 | Elevator car speed and location monitoring system |
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| CN103253574A true CN103253574A (en) | 2013-08-21 |
| CN103253574B CN103253574B (en) | 2016-03-23 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071663A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Elevator braking 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 |
| CN111532927A (en) * | 2020-03-30 | 2020-08-14 | 日立电梯（中国）有限公司 | Elevator, computer device, readable storage medium and method for controlling car stop |
| CN112299196A (en) * | 2020-10-12 | 2021-02-02 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104071663A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Elevator braking 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 |
| CN111532927A (en) * | 2020-03-30 | 2020-08-14 | 日立电梯（中国）有限公司 | Elevator, computer device, readable storage medium and method for controlling car stop |
| 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 |
| CN112299196A (en) * | 2020-10-12 | 2021-02-02 | 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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| CN103253574B (en) | 2016-03-23 |
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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. |