CN1927687A - Elevator weighing device and method - Google Patents
Elevator weighing device and method Download PDFInfo
- Publication number
- CN1927687A CN1927687A CN 200610122464 CN200610122464A CN1927687A CN 1927687 A CN1927687 A CN 1927687A CN 200610122464 CN200610122464 CN 200610122464 CN 200610122464 A CN200610122464 A CN 200610122464A CN 1927687 A CN1927687 A CN 1927687A
- Authority
- CN
- China
- Prior art keywords
- serial communication
- car
- electron plate
- machine room
- communication electron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses an elevator weighing device and method. The device includes elevator weight sensing elements, elevator serial electronic communication boards, frequency converter, electronic room serial communication boards; installing analog-to-digital conversion components on the elevator serial electronic communication boards, the elevator weight sensing elements are connected with elevator serial electronic communication boards; the elevator serial electronic communication boards are connected with the electronic room serial communication boards, and the programmable controllers processing the elevator weight signals are linked on the electronic room serial communication boards, and installing digital-to-analog converter components on the electronic room serial communication boards connected with the frequency converter. The method is: inputting the analog signal D1 output from elevator weight sensing elements to elevator serial electronic communication boards, inputting the transformed digital signal D2 to electronic room serial communication boards, processing the signal to analog signal D4 via the programmable controllers and analog-to-digital conversion components, then the analog signal D4 is input to frequency converter. The invention can improve the signal transmission accuracy and has good compatibility.
Description
Affiliated field
The present invention relates to the control method of elevator control gear and elevator.
Background technology
In the elevator device of present vertical lift, the quantity difference of passenger in the car, the total weight of car is changed, and the landing of the elevator of vertical lift is to rely on the rotation of motor to realize the output torque the when total weight of car directly has influence on electric motor starting.Be improved in order to improve the stationarity and the traveling comfort of elevator in starting process, so adopt following weighting apparatus in the elevator device of now common vertical lift: the car weight sensing element senses the weight of car, the output analog signal, again this analog signal is input to the frequency converter of machine room, frequency converter is exported different electric current (promptly often say preset moment) according to the analog signal of this input, this electric current is exported in the motor of machine room, regulate the output torque of motor, realize the starting and the lifting of car.This shows, the basic design of above-mentioned weighting apparatus is: the total weight of sensing car is input in the frequency converter of machine room in the mode of analog signal, by the different electric current of frequency converter output, this electric current is used for controlling the moment of motor, to realize the adjusting of motor torque under the different car weights.But the shortcoming of this weighting apparatus is: because car is longer to the distance of machine room, the analog signal that the car weight sensing element is exported is in the machine room transmittance process, can produce decay, make the electric current generation deviation of frequency converter output, influence the precision that motor torque is regulated.
Also have another weighting apparatus: the analog signal that the car weight sensing element is exported outputs to the car serial communication electron plate of car top, be converted to digital signal by modulus transition element, again with the frequency converter of this digital signal transfers to machine room, again by the frequency converter electric current different (promptly normal say preset moment) according to digital signal output, this outgoing current is used for controlling the output torque of machine room motor, so that car is more steady in starting process, improve traveling comfort.This structure is being made improvement aspect the precision that improves the signal transmission, but its deficiency also is very tangible:
The digital signal of being exported from car serial communication electron plate is based on the difference of system, can between car serial communication electron plate and frequency converter, there be different communications protocol most probably, as: the frequency converter of different series itself has different communications protocol, for example:
1), FUJI G11 Series Frequency Converter communications protocol commonly used is: RS485 MODBUS RTU PROTOCL agreement;
2), FUJI VG7 Series Frequency Converter communications protocol commonly used is: RS485 FGI agreement;
3), peace river MxC Series Frequency Converter communications protocol commonly used is: the MEMOBUS agreement;
Thereby when using different frequency converters, the communications protocol between car serial communication electron plate and the frequency converter should be carried out corresponding modification, makes commonality reduce, and can not unify between each system, also reduces interchangeability, and then can improve the manufacturing cost of product.
Summary of the invention
The object of the present invention is to provide a kind of like this elevator weighing apparatus and method, this elevator weighing apparatus and method can improve the precision of signal transmission, the compatibility of raising product.
The present invention is achieved through the following technical solutions:
A kind of elevator weighing apparatus includes car weight sensing element, car serial communication electron plate, frequency converter; Be provided with modulus transition element on car serial communication electron plate, the car weight sensing element is connected with car serial communication electron plate; This elevator weighing apparatus also comprises machine room serial communication electron plate, car serial communication electron plate is connected with this machine room serial communication electron plate, on machine room serial communication electron plate, be connected with the programmable controller that the car weight signal is handled, machine room serial communication electron plate is provided with the digital to analogy conversion element, and machine room serial communication electron plate is connected with frequency converter.
A kind of elevator weighing method, this method may further comprise the steps:
A), the weight of car weight sensing element sensing car, and output analog signal D1;
B), this analog signal D1 is inputed to car serial communication electron plate, through modulus transition element analog signal D1 is converted to digital signal D2;
C), the digital signal D2 with the output of car serial communication electron plate inputs to machine room serial communication electron plate;
D), the digital signal D2 of machine room serial communication electron plate output inputs to programmable controller, through being converted into digital signal D3, digital signal D3 inputed to machine room serial communication electron plate again;
E), digital signal D3 is converted to analog signal D4 through the digital to analogy conversion element, analog signal D4 inputs to frequency converter.
The analog signal D1 that the car weight sensing element is exported is converted to digital signal D2, is delivered to machine room serial communication electron plate, handles through programmable controller, again this digital signal is converted to analog signal D4, exports frequency converter to.The signal that the car sensing cell is exported is converted to after the digital signal again to the machine room transmission, the precision of transmitting is improved, simultaneously, after programmable controller, digital to analogy conversion element are handled, pass to frequency converter again, make machine room serial communication electron plate obtain unified with the compatibility that is connected signal between the frequency converter.
Further improvement of the present invention is:
Described programmable controller is connected with described machine room serial communication electron plate by the controller communication port, and this controller communication port is the RS422 COM port.
Described AD conversion unit is modulus transition element (A/D converter);
Described D/A conversion unit is digital to analogy conversion element (D/A converter);
Be provided with elastic cushion block on described car bottom and base opposed bottom surface, be provided with eddy current sensor on base, described sensing element is this eddy current sensor.
Described car serial communication electron plate is located at the top of car.
To sum up, advantage of the present invention is:
Car weight signal between car and the machine room transmits in the mode of digital signal, and transmission precision is improved;
After the car weight signal is delivered to machine room, after programmable controller is handled, be converted to analog signal by machine room serial communication electron plate, export frequency converter again to, make compatible the high raising that is connected signal between machine room serial communication electron plate and the frequency converter, make between each system and can unify, also reduced manufacturing cost.
Description of drawings
Fig. 1 is the constructional drawing of elevator weighing apparatus of the present invention;
Fig. 2 is the diagram of circuit of elevator weighing method of the present invention;
Fig. 3 is the line graph between controller communication port and the machine room serial communication electron plate;
Fig. 4 is the cut-away view of line between controller communication port and the machine room serial communication electron plate;
Description of reference numerals:
1, car, 2, the car weight sensing element, 3, car serial communication electron plate, 4, machine room serial communication electron plate, 5, modulus transition element, 6, the digital to analogy conversion element, 7, programmable controller, 8, frequency converter, 9, elastic cushion block, 10, sedan-chair top electric box, 11, the machine room control housing, 12, towing machine, 13, track adjusting wheel, 14, counterweight, 15, base, 16, hauling rope, 17, the controller communication port.
The specific embodiment
See also Fig. 1-Fig. 4, a kind of elevator weighing apparatus: on described car 1 bottom and base 15 opposed bottom surface, be provided with elastic cushion block 9, be provided with eddy current sensor and constitute car weight sensing element 2 on base 15, this elevator weighing apparatus includes car weight sensing element 2, be located at car serial communication electron plate 3 in the sedan-chair top electric box 10 at car 1 top, be located at machine room serial communication electron plate 4, frequency converter 8 in the machine room control housing 11; On car serial communication electron plate 3, be provided with modulus transition element 5 (A/D converter), be connected with the programmable controller 7 that the car weight signal is handled on machine room serial communication electron plate 4, machine room serial communication electron plate 4 is provided with digital to analogy conversion element 6 (D/A converter); Car weight sensing element 2 is connected with car serial communication electron plate 3, and car serial communication electron plate 3 is connected with machine room serial communication electron plate 4, and machine room serial communication electron plate 4 is connected with frequency converter 8;
Programmable controller 7 is connected with machine room serial communication electron plate 4 by controller communication port 17, this controller communication port 17 is the RS422 COM port, j3 on the controller communication port 17, j16, j2, j15 lead-in wire is connected with J4, J3, J1, J2 lead-in wire on the machine room serial communication electron plate 4 respectively, and the communications protocol between programmable controller 7 and the machine room serial communication electron plate 4 is deferred to elevator programmable controller controls port agreement (FX2N LH Port Protocol AND FXProgramming Port Protocol).
In this embodiment, car 1 is connected with counterweight 14 after towing machine 12, track adjusting wheel 13, with the weight of balance car 1 under vacant state by hauling rope 16; Simultaneously, in this embodiment, (transmission of signal is not limited to this mode certainly) that signal transmission between car weight sensing element 2 and the car serial communication electron plate 3, between car serial communication electron plate 3 and the machine room serial communication electron plate 4, between machine room serial communication electron plate 4 and the frequency converter 8 all realizes by transmission line 17, this is prior art.
A kind of elevator weighing method is characterized in that, this method may further comprise the steps:
A), the weight of car weight sensing element 2 sensing cars 1, and output analog signal D1;
B), this analog signal D1 is inputed to car serial communication electron plate 3, through modulus transition element 5 analog signal D1 is converted to digital signal D2;
C), the digital signal D2 with 3 outputs of car serial communication electron plate inputs to machine room serial communication electron plate 4;
D), the digital signal D2 of machine room serial communication electron plate 4 output inputs to programmable controller 7, through being converted into digital signal D3, digital signal D3 inputed to machine room serial communication electron plate 4 again;
E), digital signal D3 is converted to analog signal D4 through digital to analogy conversion element 6, and analog signal D4 is inputed to frequency converter 8.
After present embodiment was used for elevator device, its working process was:
1, the voltage of car weight sensing element 2 output, promptly analog signal D1 is: DC2.8～4.0V (corresponding car 1 load is 100%～0%);
2, the digital signal D2 of 5 outputs of the modulus transition element on the car serial communication electron plate 3 is: K160～K210 (decimal digit);
3, the digital signal D2 of K160～K210 of obtaining of car serial communication electron plate 3 inputs to programmable controller 7 and converts, digital signal D2 is converted to digital signal D3, the D3 scope is K0～K204, D3 returns the digital to analogy conversion element 6 that inputs on the machine room serial communication electron plate 4 again, output analog signal D4, the scope of D4 is the voltage signal of 0～8V;
4, analog signal D4 inputs to frequency converter 8, exports the different moment that presets by frequency converter 8.
The advantage of present embodiment is: adopt digital signal to transmit, improve the precision of transmission; Simultaneously, handle, to satisfy the compatibility of communication between frequency converter 8 and defeated railway carriage or compartment serial communication electron plate 3, the machine room serial communication electron plate 4 by 7 pairs of digital signals of programmable controller.
Claims (5)
1, a kind of elevator weighing apparatus includes car weight sensing element (2), car serial communication electron plate (3), frequency converter (8); On car serial communication electron plate (3), be provided with modulus transition element (5), car weight sensing element (2) is connected with car serial communication electron plate (3), it is characterized in that, this elevator weighing apparatus also comprises machine room serial communication electron plate (4), car serial communication electron plate (3) is connected with this machine room serial communication electron plate (4), on machine room serial communication electron plate (4), be connected with the programmable controller (7) that the car weight signal is handled, machine room serial communication electron plate (4) is provided with digital to analogy conversion element (6), and machine room serial communication electron plate (4) is connected with frequency converter (8).
2, elevator weighing apparatus as claimed in claim 1, it is characterized in that, described programmable controller (7) is connected with described machine room serial communication electron plate (4) by controller communication port (17), and this controller communication port (17) is the RS422 COM port.
3, elevator weighing apparatus as claimed in claim 1, it is characterized in that, be provided with elastic cushion block (9) on described car (1) bottom and base (15) opposed bottom surface, be provided with eddy current sensor on base (15), described car weight sensing element (2) is this eddy current sensor.
4, elevator weighing apparatus as claimed in claim 1 is characterized in that, described car serial communication electron plate (3) is located at the top of car (1).
5, a kind of elevator weighing method is characterized in that, this method may further comprise the steps:
A), the weight of car weight sensing element (2) sensing car, and output analog signal D1;
B), this analog signal D1 is inputed to car serial communication electron plate (3), through modulus transition element (5) analog signal D1 is converted to digital signal D2;
C), the digital signal D2 with car serial communication electron plate (3) output inputs to machine room serial communication electron plate (4);
D), the digital signal D2 of machine room serial communication electron plate (4) output inputs to programmable controller (7), through being converted into digital signal D3, digital signal D3 inputed to machine room serial communication electron plate (4) again;
E), digital signal D3 is converted to analog signal D4 through digital to analogy conversion element (6), analog signal D4 inputs to frequency converter (8).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122464 CN1927687A (en) | 2006-09-27 | 2006-09-27 | Elevator weighing device and method |
| CN 200710004850 CN101028899A (en) | 2006-09-27 | 2007-02-02 | Elevator weighing apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122464 CN1927687A (en) | 2006-09-27 | 2006-09-27 | Elevator weighing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1927687A true CN1927687A (en) | 2007-03-14 |
Family
ID=37857851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610122464 Pending CN1927687A (en) | 2006-09-27 | 2006-09-27 | Elevator weighing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1927687A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484940A (en) * | 2018-12-27 | 2019-03-19 | 日立电梯（中国）有限公司 | Elevator weighing monitoring device, elevator and weighing sensor monitoring method |
| CN110395643A (en) * | 2018-04-25 | 2019-11-01 | 富士达株式会社 | Elevator cage device and elevator |
-
2006
- 2006-09-27 CN CN 200610122464 patent/CN1927687A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395643A (en) * | 2018-04-25 | 2019-11-01 | 富士达株式会社 | Elevator cage device and elevator |
| CN110395643B (en) * | 2018-04-25 | 2022-04-12 | 富士达株式会社 | Elevator car device and elevator |
| CN109484940A (en) * | 2018-12-27 | 2019-03-19 | 日立电梯（中国）有限公司 | Elevator weighing monitoring device, elevator and weighing sensor monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1019907C (en) | Elevator control apparatus | |
| CN1189378C (en) | Device for adjusting braking moment of elevator | |
| CN1506290A (en) | Method and apparatus for controlling zone operating of elevator equipment | |
| CN1927687A (en) | Elevator weighing device and method | |
| CN101565930A (en) | Movable span lifting device of vertical lift balance bridge | |
| CN101028899A (en) | Elevator weighing apparatus and method | |
| CN1657397A (en) | Digital automatic control system of single wire winding type mine direct current lifter | |
| CN1035051C (en) | Unit for controlling elevator | |
| CN201896050U (en) | Gear-driving hinge lifting device | |
| CN1385353A (en) | Motor starting control method for elevator | |
| CN103145046A (en) | Automatic safety control apparatus of bridge crane under complex condition, and method thereof | |
| CN1625040A (en) | Motor controller | |
| CN110143533A (en) | A kind of suspension hook synchronous lifting device and method based on wireless communication and electric block | |
| CN211895860U (en) | Subway modular platform door installation and carrying equipment | |
| CN103387162B (en) | A kind of elevator wireless control system and method | |
| CN101725416A (en) | Throttle control circuit, crane and control method of multi-throttle device | |
| US20210309487A1 (en) | Safety system, elevator, and method for upgrading a safety system of an elevator | |
| CN1181514C (en) | Tapping change-over operation control mechanism for loaded tapping switch | |
| CN112794209A (en) | Steel wire rope lifting stroke measuring device | |
| CN221884171U (en) | Leveling lifting system | |
| CN1137812C (en) | Injection machine energy-saving equipment based on frequency conversion speed controller and its method | |
| CN2880766Y (en) | Elevator car loading controller | |
| CN111017789A (en) | Subway modular platform door installation and carrying equipment | |
| CN201890736U (en) | Double-lifting point electric hoist | |
| CN217730490U (en) | Electromechanical engineering equipment conveyer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |