CN103538981A - Device and method for cancelling requested stop in case of no one waiting elevator after elevator is called or in case of full load of elevator - Google Patents
Device and method for cancelling requested stop in case of no one waiting elevator after elevator is called or in case of full load of elevator Download PDFInfo
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- CN103538981A CN103538981A CN201310476348.3A CN201310476348A CN103538981A CN 103538981 A CN103538981 A CN 103538981A CN 201310476348 A CN201310476348 A CN 201310476348A CN 103538981 A CN103538981 A CN 103538981A
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Abstract
The invention provides a device for cancelling requested stop in case of no one waiting an elevator after the elevator is called or in case of full load of the elevator. The device comprises an elevator button input unit, a plurality of pressure sensor processing units, an elevator master control unit, a step motor unit, an elevator car door handling unit, and an elevator state display unit. One pressure sensor processing unit is disposed inside an elevator car. The elevator waiting area of each floor is provided with one pressure sensor processing unit. The pressure sensor processing units are all connected with the elevator master control unit. The elevator button input unit, the step motor unit, the elevator car door handling unit and the elevator state display unit are all connected with the elevator master control unit. The invention further provides a method for cancelling requested stop in case of no one waiting an elevator after the elevator is called or in case of full load of the elevator. The device and method has the advantages that energy waste and mechanical wear can be reduced, useless frequent idle stop, door operation and start of the elevator can be avoided, and time is saved for passengers.
Description
Technical field
The present invention relates to mechanical equipment technical field, particularly a kind of elevator is pressed and unmanned is waited ladder or elevator at full load is cancelled the device and method that please stop afterwards.
Background technology
Elevator is a kind of vertical conveyor that electrical motor is power of take, case shape gondola is housed, take advantage of people or carrying goods for tier building, user need to be by the arrow button calling elevator of upper or lower, presses required floor and then realizes the use to elevator after entering elevator.
At present; user triggers the action of elevator by pressing the arrow button of the upper or lower outside every floor elevator, in the many buildings of floor, often there will be user to press elevator; when elevator arrives this floor, but unmanned time is terraced, causes elevator ' sky stops '.And the outer arrow button of a certain floor elevator is when be pressed, if the last capacity weight of the contained passenger of elevator can not meet in a normal person's weight and elevator when passenger does not select this floor, just there will be elevator to stop settling and cannot enter terraced situation.Above situation not only caused the energy waste, increase mechanical wearing and tearing but also wasted passenger's time.
Summary of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of elevator to press rear unmanned time ladder or elevator at full load is cancelled the device that please stop; Avoided that the insignificant sky frequently of elevator stops, switch gate and startup, saved passenger's time.
One of problem of the present invention is achieved in that a kind of elevator is pressed rear unmanned time ladder or elevator at full load is cancelled the device that please stop, and described device comprises elevator button input block, a plurality of pressure sensor processing unit, elevator main control unit, stepping motor unit, lift car switch gate unit and state of elevator display unit; Pressure sensor processing unit described in arranging one in lift car, each floor elevator wait region all arrange one described in pressure sensor processing unit; Described in each, pressure sensor processing unit is all connected with described elevator main control unit; Described elevator button input block, stepping motor unit, lift car switch gate unit and state of elevator display unit are all connected with described elevator main control unit.
Two of the technical problem to be solved in the present invention, is to provide a kind of elevator to press rear unmanned time ladder or elevator at full load is cancelled the method that please stop; Avoided that the insignificant sky frequently of elevator stops, switch gate and startup, saved passenger's time.
Two of problem of the present invention is achieved in that a kind of elevator is pressed rear unmanned time ladder or elevator at full load is cancelled the method that please stop, and a pressure sensor processing unit is set in lift car, detects in real time the changes in weight of elevator; Each floor elevator wait region all arrange one described in pressure sensor processing unit; Detect in real time the changes in weight that elevator waits region outward;
Outside elevator, by an elevator button input block, at a certain floor, be pressed, the elevator main control unit of elevator sends asks stop instruction, and elevator please stop; Before elevator arrival floor, if waiting the pressure sensor processing unit in region outward, elevator detected all the time people, to elevator, do not send any signal; If marquis ladder person all leaves suddenly, the pressure sensor processing unit that elevator waits region outward passes to elevator main control unit in real time by the treatment circuit of responded to empty information exchange excess pressure sensor processing unit, elevator main control unit is automatically cancelled and is asked stop instruction, the stepping motor unit of elevator works on, and elevator is outer to be extinguished press key lamp by a state of elevator display unit;
Or, outside elevator, by elevator button input block, at a certain floor, being pressed, elevator main control unit sends asks stop instruction, and elevator please stop; If passenger has while selecting floor that this presses in elevator, elevator main control unit does not receive the signal that the pressure sensor processing unit in lift car transmits; At elevator, arrive after this floor of pressing, elevator door is opened in lift car switch gate unit; When if passenger does not select floor that this presses in elevator, and the pressure sensor processing unit in lift car detects and judges in elevator when residue capacity weight is less than a people institute applied load, pressure sensor processing unit in lift car passes to elevator main control unit in real time by responded to ' being fully loaded with ' signal, control elevator cancellation and ask stop instruction, and the reason that marquis ladder person elevator does not stop at this floor is informed in the state of elevator display unit demonstration ' being fully loaded with ' of corresponding floor outside elevator.
The invention has the advantages that: the present invention is based on pressure sensor detection elevator and press the devices and methods therefor that stop instruction is asked in rear unmanned cancellation of waiting in ladder and the fully loaded two kinds of situations of elevator, wherein elevator press rear unmanned wait ladder please stop be mainly by the ground outside elevator wait region setting pressure sensor detect elevator be pressed send please stop instruction after the unmanned ladder of waiting whether, but like this after having people to press elevator to leave, elevator external pressure sensor can't detect required weight and exists, and unmanned signal is now passed to main elevator control cabinet, main elevator control cabinet control realizes the automatic cancellation of elevator and please stop, it is by setting pressure sensor in lift car that the fully loaded cancellation of elevator please stop, when elevator is full and elevator in passenger while not selecting under this floor elevator, elevator pressure sensor passes to computer main control cabinet by ' being fully loaded with ' signal, and main elevator control cabinet control unit is realized the automatic cancellation of elevator and please be stopped.The present invention utilizes pressure sensor apparatus realization than additive method, to have more reliability to the identification of people or thing, has ensured the normal operation of elevator.Can carry out existing elevator operating mode perfectly, reduce the waste of the energy and mechanical wearing and tearing, especially improve elevator operating efficiency and reduced the trouble of taking, save the time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is detailed structure schematic diagram of the present invention.
Fig. 3 is the structural representation for the treatment of circuit in pressure sensor of the present invention.
Fig. 4 is method flow schematic diagram of the present invention.
The specific embodiment
Refer to shown in Fig. 1 to Fig. 3, the present invention is that a kind of elevator of realizing is pressed and unmanned waited ladder or elevator at full load is cancelled the device that please stop afterwards, and described device comprises elevator button input block 1, a plurality of pressure sensor processing unit 2, elevator main control unit 3, stepping motor unit 4, lift car switch gate unit 5 and state of elevator display unit 6; Pressure sensor processing unit 2 described in arranging one in lift car, each floor elevator wait region all arrange one described in pressure sensor processing unit 2; Described in each, pressure sensor processing unit 2 is all connected with described elevator main control unit 3; Described elevator button input block 1, stepping motor unit 4, lift car switch gate unit 5 and state of elevator display unit 6 are all connected with described elevator main control unit 3.Wherein, pressure sensor processing unit 2 in described lift car is arranged on the bottom of elevator crawler belt, the two ends of elevator crawler belt are by live roll driven rotary, live roll is connected with motor, thereby by controlling the start and stop of motor, control the rotation of live roll and stop, and then control the operation of elevator crawler belt and stop.
In the present invention, described pressure sensor processing unit 2 comprises: the pressure sensor 21, signal amplifier 22 and the comparator 23 that connect successively; Described comparator 23 is connected with described elevator main control unit 3., after the data message gathering by pressure sensor 21 is processed by signal amplifier 22 and comparator 23, this data message is more precise and stable.
Described stepping motor unit 4 comprises: the D and A converter 41 connecting successively, analog controller 42 and control motor 43, described D and A converter 42 is connected with described elevator main control unit 41.The signal that is about to 41 outputs of the elevator main control unit signal that formation control motor 43 can be identified after D and A converter 41 and analog controller 42 are changed.
In addition, in the present invention, in described pressure sensor 21, be provided with a treatment circuit, this treatment circuit comprises: comparator A1, comparator A2, comparator A3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, adjustable resistance W and stabilivolt Dz; Described resistance R 1, resistance R 2, adjustable resistance W series connection; The positive terminal of the positive terminal of comparator A1, comparator A2 all connects elevator main control unit, and the negative pole end of comparator A1 is connected with one end of adjustable resistance W, and the negative pole end of comparator A2 is connected with the other end of adjustable resistance W; The mouth of described comparator A1 is connected with resistance R 1, and the mouth of comparator A2 is connected with resistance R 2,5 series connection of described resistance R 3, resistance R, and resistance R 3 is connected with resistance R 1, and resistance R 5 connects signal ground; 6 series connection of described resistance R 4, resistance R, and resistance R 4 is connected with resistance R 2, and resistance R 6 connects power input; The positive terminal of described comparator A3 is connected with resistance R 3, and the negative pole end of comparator A3 is connected with resistance R 4, and the mouth of comparator A3 is connected with power input.
As shown in Figures 1 to 4, a kind of elevator of the present invention is pressed rear unmanned time ladder or elevator at full load is cancelled the method that please stop, and a pressure sensor processing unit is set in lift car, detects in real time the changes in weight of elevator; Each floor elevator wait region all arrange one described in pressure sensor processing unit; Detect in real time the changes in weight that elevator waits region outward;
Outside elevator, by an elevator button input block, at a certain floor, be pressed, the elevator main control unit of elevator sends asks stop instruction, and elevator please stop, before elevator arrival floor, if waiting the pressure sensor processing unit in region outward, elevator detected all the time people, to elevator, do not send any signal, if marquis ladder person all leaves suddenly, the pressure sensor processing unit that elevator waits region outward passes to elevator main control unit in real time by the treatment circuit of responded to empty information exchange excess pressure sensor processing unit, consider that marquis ladder person is in situation once away from keyboard, pressure sensor processing unit monitoring time postpones to be greater than 2S, if still empty exists, again to main elevator control cabinet, send unmanned signal, if main elevator control cabinet is double during this period, receive unmanned waiting signal, elevator main control unit is automatically cancelled and is asked stop instruction, the stepping motor unit of elevator works on, elevator is outer to be extinguished press key lamp by a state of elevator display unit,
Or, outside elevator, by elevator button input block, at a certain floor, being pressed, elevator main control unit sends asks stop instruction, and elevator please stop; If passenger has while selecting floor that this presses in elevator, elevator main control unit does not receive the signal that the pressure sensor processing unit in lift car transmits; At elevator, arrive after this floor of pressing, elevator door is opened in lift car switch gate unit; When if passenger does not select floor that this presses in elevator, and the pressure sensor processing unit in lift car detects and judges in elevator when residue capacity weight is less than a people institute applied load, pressure sensor processing unit in lift car passes to elevator main control unit in real time by responded to ' being fully loaded with ' signal, control elevator cancellation and ask stop instruction, and the reason that marquis ladder person elevator does not stop at this floor is informed in the state of elevator display unit demonstration ' being fully loaded with ' of corresponding floor outside elevator.Wherein, pressure sensor processing unit in described lift car is arranged on the bottom of elevator crawler belt, the two ends of elevator crawler belt are by live roll driven rotary, live roll is connected with motor, thereby by controlling the start and stop of motor, control the rotation of live roll and stop, and then control the operation of elevator crawler belt and stop.
In the present invention, described pressure sensor processing unit comprises: the pressure sensor, signal amplifier and the comparator that connect successively; Described comparator is connected with described elevator main control unit., after the data message gathering by pressure sensor is processed by signal amplifier and comparator, this data message is more precise and stable.
Described stepping motor unit comprises: the D and A converter connecting successively, analog controller and control motor, described D and A converter is connected with described elevator main control unit.The signal that is about to the output of the elevator main control unit signal that formation control motor can be identified after D and A converter and analog controller are changed.
In addition, described in the present invention, the treatment circuit in pressure sensor comprises: comparator A1, comparator A2, comparator A3, comparator A4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, adjustable resistance W and stabilivolt Dz; Described resistance R 1, resistance R 2, adjustable resistance W series connection; The positive terminal of the positive terminal of comparator A1, comparator A2 all connects power input, and the negative pole end of comparator A1 is connected with one end of adjustable resistance W, and the negative pole end of comparator A2 is connected with the other end of adjustable resistance W; The mouth of described comparator A1 is connected with resistance R 1, and the mouth of comparator A2 is connected with resistance R 2,5 series connection of described resistance R 3, resistance R, and resistance R 3 is connected with resistance R 1, and resistance R 5 connects signal ground; 6 series connection of described resistance R 4, resistance R, and resistance R 4 is connected with resistance R 2, and resistance R 6 connects power input; The positive terminal of described comparator A3 is connected with resistance R 3, and the negative pole end of comparator A3 is connected with resistance R 4, and the mouth of comparator A3 is connected with resistance R 8; Resistance R 8 is connected with the negative pole end of comparator A4, and resistance R 7 is connected with the positive terminal of comparator A4; The mouth contact resistance R9 of comparator A4, resistance R 9 is connected with elevator main control unit with the positive pole of described stabilivolt Dz respectively, and the negative pole of stabilivolt Dz connects signal ground.
Here it should be noted that: the signal V that in treatment circuit, pressure sensor induction is sent
0, this signal V
0be any road in the two-way of comparator A1 and comparator A2 as the reference voltage comparison of analog signal and power supply, the binary signal of output more afterwards, when the difference of input voltage increases or reduces, has U
i<U
rtime, the output of comparator A3 amplifier high level, now stabilivolt D
zoppositely voltage stabilizing work; Exit point position U
0by stabilivolt D
zbe clamped at the burning voltage U of stabilivolt
z, i.e. U
0=U
z; At U
i> U
rtime, comparator A3 amplifier output low level, stabilivolt D
zforward conduction, exit point position U
0voltage equals stabilivolt D
zforward voltage drop U
d, i.e. U
0=-U
d; Therefore, with U
rfor boundary, as input voltage U
iduring variation, mouth reflects two states, high potential and active potential; Thereby output can pass to elevator main control unit as stabilization signal.From this angle, comparator can be used as to one 1 A/D converter (ADC).
Described pressure sensor adopts piezoresistive pressure sensor, and this treatment circuit has very high input impedance and very high common-mode rejection ratio and open-loop gain; Offset current, voltage, noise and drift are all very little, comparator A1 in treatment circuit, and comparator A2 forms the first order with being in parallel differential amplifier, and the amplification of this one-level is output as V
0'=V
01-V
02=[1+ (R
1+ R
2)/W] V
i; Comparator A1, comparator A2 input end is Absorption Current not, and circuit structure is symmetrical, and drift and imbalance are cancelled out each other, and have the ability that common-mode signal is disturbed that suppresses; Comparator A3 forms the differential amplification in the second stage, improves magnification factor, wants effectively to suppress common-mode signal and disturbs, resistance R
3=R
4=R, R
5=R
6=R
f; Therefore, the differential amplifier section in the second stage for the treatment of circuit is always output as V
0=-(R
f/ R) V
0(the R of '=-
f/ R) [1+ (R
1+ R
2)/W] V
i; Described resistance R and resistance R _ f are and pre-set, and R
fthe value of/R is 100～200; The V of (wherein R value is generally 200～400 Europe, and Rf is 2000～8000 Europe) output
0input to again comparator A4.
In a word, the present invention utilizes pressure sensor apparatus realization than additive method, to have more reliability to the identification of people or thing, has ensured the normal operation of elevator.Can carry out existing elevator operating mode perfectly, reduce the waste of the energy and mechanical wearing and tearing, especially improve elevator operating efficiency and reduced the trouble of taking, save the time.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (11)
1. elevator is pressed and unmanned is waited ladder or elevator at full load is cancelled the device that please stop afterwards, it is characterized in that: described device comprises elevator button input block, a plurality of pressure sensor processing unit, elevator main control unit, stepping motor unit, lift car switch gate unit and state of elevator display unit; Pressure sensor processing unit described in arranging one in lift car, each floor elevator wait region all arrange one described in pressure sensor processing unit; Described in each, pressure sensor processing unit is all connected with described elevator main control unit; Described elevator button input block, stepping motor unit, lift car switch gate unit and state of elevator display unit are all connected with described elevator main control unit.
2. elevator according to claim 1 is pressed and unmanned is waited ladder or elevator at full load is cancelled the device that please stop afterwards, it is characterized in that: described pressure sensor processing unit comprises: the pressure sensor, signal amplifier and the comparator that connect successively; Described comparator is connected with described elevator main control unit.
3. elevator according to claim 1 is pressed and unmanned is waited ladder or elevator at full load is cancelled the device that please stop afterwards, it is characterized in that: described stepping motor unit comprises: the D and A converter connecting successively, analog controller and control motor, described D and A converter is connected with described elevator main control unit.
4. elevator according to claim 2 is pressed and unmanned is waited ladder or elevator at full load is cancelled the device that please stop afterwards, it is characterized in that: in described pressure sensor, be provided with a treatment circuit, this treatment circuit comprises: comparator A1, comparator A2, comparator A3, comparator A4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, adjustable resistance W and stabilivolt Dz; Described resistance R 1, resistance R 2, adjustable resistance W series connection; The positive terminal of the positive terminal of comparator A1, comparator A2 all connects elevator main control unit, and the negative pole end of comparator A1 is connected with one end of adjustable resistance W, and the negative pole end of comparator A2 is connected with the other end of adjustable resistance W; The mouth of described comparator A1 is connected with resistance R 1, and the mouth of comparator A2 is connected with resistance R 2,5 series connection of described resistance R 3, resistance R, and resistance R 3 is connected with resistance R 1, and resistance R 5 connects signal ground; 6 series connection of described resistance R 4, resistance R, and resistance R 4 is connected with resistance R 2, and resistance R 6 connects power input; The positive terminal of described comparator A3 is connected with resistance R 3, and the negative pole end of comparator A3 is connected with resistance R 4, and the mouth of comparator A3 is connected with resistance R 8; Resistance R 8 is connected with the negative pole end of comparator A4, and resistance R 7 is connected with the positive terminal of comparator A4; The mouth contact resistance R9 of comparator A4, resistance R 9 is connected with power input with the positive pole of described stabilivolt Dz respectively, and the negative pole of stabilivolt Dz connects signal ground.
5. elevator is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: a pressure sensor processing unit is set in lift car, detects in real time the changes in weight of elevator; Each floor elevator wait region all arrange one described in pressure sensor processing unit; Detect in real time the changes in weight that elevator waits region outward;
Outside elevator, by an elevator button input block, at a certain floor, be pressed, the elevator main control unit of elevator sends asks stop instruction, and elevator please stop; Before elevator arrival floor, if waiting the pressure sensor processing unit in region outward, elevator detected all the time people, to elevator, do not send any signal; If marquis ladder person all leaves suddenly, the pressure sensor processing unit that elevator waits region outward passes to elevator main control unit in real time by the treatment circuit of responded to empty information exchange excess pressure sensor processing unit, elevator main control unit is automatically cancelled and is asked stop instruction, the stepping motor unit of elevator works on, and elevator is outer to be extinguished press key lamp by a state of elevator display unit;
Or, outside elevator, by elevator button input block, at a certain floor, being pressed, elevator main control unit sends asks stop instruction, and elevator please stop; If passenger has while selecting floor that this presses in elevator, elevator main control unit does not receive the signal that the pressure sensor processing unit in lift car transmits; At elevator, arrive after this floor of pressing, elevator door is opened in lift car switch gate unit; When if passenger does not select floor that this presses in elevator, and the pressure sensor processing unit in lift car detects and judges in elevator when residue capacity weight is less than a people institute applied load, pressure sensor processing unit in lift car passes to elevator main control unit in real time by responded to ' being fully loaded with ' signal, control elevator cancellation and ask stop instruction, and the reason that marquis ladder person elevator does not stop at this floor is informed in the state of elevator display unit demonstration ' being fully loaded with ' of corresponding floor outside elevator.
6. elevator according to claim 5 is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: the described treatment circuit by responded to empty information exchange excess pressure sensor processing unit passes to after elevator main control unit in real time, pressure sensor processing unit monitoring time postpones to be greater than 2S, if still empty exists, again to main elevator control cabinet, send unmanned signal, if main elevator control cabinet is double during this period, receive unmanned waiting signal, elevator main control unit is automatically cancelled and is asked stop instruction.
7. elevator according to claim 5 is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: described pressure sensor processing unit comprises: the pressure sensor, signal amplifier and the comparator that connect successively; Described comparator is connected with described elevator main control unit.
8. elevator according to claim 5 is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: described stepping motor unit comprises: the D and A converter connecting successively, analog controller and control motor, described D and A converter is connected with described elevator main control unit.
9. elevator according to claim 5 is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: the treatment circuit in described pressure sensor comprises: comparator A1, comparator A2, comparator A3, comparator A4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9, adjustable resistance W and stabilivolt Dz; Described resistance R 1, resistance R 2, adjustable resistance W series connection; The positive terminal of the positive terminal of comparator A1, comparator A2 all connects power input, and the negative pole end of comparator A1 is connected with one end of adjustable resistance W, and the negative pole end of comparator A2 is connected with the other end of adjustable resistance W; The mouth of described comparator A1 is connected with resistance R 1, and the mouth of comparator A2 is connected with resistance R 2,5 series connection of described resistance R 3, resistance R, and resistance R 3 is connected with resistance R 1, and resistance R 5 connects signal ground; 6 series connection of described resistance R 4, resistance R, and resistance R 4 is connected with resistance R 2, and resistance R 6 connects power input; The positive terminal of described comparator A3 is connected with resistance R 3, and the negative pole end of comparator A3 is connected with resistance R 4, and the mouth of comparator A3 is connected with resistance R 8; Resistance R 8 is connected with the negative pole end of comparator A4, and resistance R 7 is connected with the positive terminal of comparator A4; The mouth contact resistance R9 of comparator A4, resistance R 9 is connected with elevator main control unit with the positive pole of described stabilivolt Dz respectively, and the negative pole of stabilivolt Dz connects signal ground.
10. elevator according to claim 9 is pressed and unmanned is waited ladder or elevator at full load is cancelled the method that please stop afterwards, it is characterized in that: the signal V that pressure sensor induction is sent
0, this signal V
0be any road in the two-way of comparator A1 and comparator A2 as the reference voltage comparison of analog signal and power supply, the binary signal of output more afterwards, when the difference of input voltage increases or reduces, has U
i<U
rtime, the output of comparator A3 amplifier high level, now stabilivolt D
zoppositely voltage stabilizing work; Exit point position U
0by stabilivolt D
zbe clamped at the burning voltage U of stabilivolt
z, i.e. U
0=U
z; At U
i> U
rtime, comparator A3 amplifier output low level, stabilivolt D
zforward conduction, exit point position U
0voltage equals stabilivolt D
zforward voltage drop U
d, i.e. U
0=-U
d; Therefore, with U
rfor boundary, as input voltage U
iduring variation, mouth reflects two states, high potential and active potential; Thereby output can pass to elevator main control unit as stabilization signal.
11. elevators according to claim 9 are pressed rear unmanned time ladder or elevator at full load is cancelled the method that please stop, it is characterized in that: described pressure sensor adopts piezoresistive pressure sensor, and this treatment circuit has very high input impedance and very high common-mode rejection ratio and open-loop gain; Comparator A1 in treatment circuit, comparator A2 forms the first order with being in parallel differential amplifier, and the amplification of this one-level is output as V
0'=V
01-V
02=[1+ (R
1+ R
2)/W] V
i; Comparator A1, comparator A2 input end is Absorption Current not, and circuit structure is symmetrical, and drift and imbalance are cancelled out each other, and have the ability that common-mode signal is disturbed that suppresses; Comparator A3 forms the differential amplification in the second stage, improves magnification factor, wants effectively to suppress common-mode signal and disturbs, resistance R
3=R
4=R, R
5=R
6=R
f; Therefore, the differential amplifier section in the second stage for the treatment of circuit is always output as V
0=-(R
f/ R) V
0(the R of '=-
f/ R) [1+ (R
1+ R
2)/W] V
i; Described resistance R and resistance R
fbe and pre-set, and R
fthe value of/R is 100～200; The V of output
0input to again comparator A4.
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|---|---|---|---|
| CN201310476348.3A CN103538981B (en) | 2013-10-12 | 2013-10-12 | The device and method that please stop is cancelled when elevator presses rear unmanned time ladder or elevator cars with full load |
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|---|---|---|---|
| CN201310476348.3A CN103538981B (en) | 2013-10-12 | 2013-10-12 | The device and method that please stop is cancelled when elevator presses rear unmanned time ladder or elevator cars with full load |
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| WO2020238661A1 (en) * | 2019-05-24 | 2020-12-03 | 深圳壹账通智能科技有限公司 | Elevator scheduling method, device, computer apparatus, and storage medium |
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| CN106006254A (en) * | 2016-08-03 | 2016-10-12 | 合肥奇也信息科技有限公司 | Building elevator stop control system |
| CN106006242A (en) * | 2016-08-03 | 2016-10-12 | 合肥奇也信息科技有限公司 | Building elevator scheduling control system |
| CN106241539A (en) * | 2016-10-29 | 2016-12-21 | 安徽省艾佳信息技术有限公司 | A kind of control method of elevator safety operation |
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| CN107954283A (en) * | 2017-11-27 | 2018-04-24 | 深圳信息职业技术学院 | A kind of method, system and the storage device of real-time update elevator dispatching algorithm |
| CN110642106A (en) * | 2018-06-27 | 2020-01-03 | 南京理工大学 | Elevator intelligent control method based on function of shielding calling and floor selection during critical overweight |
| CN109110594A (en) * | 2018-08-31 | 2019-01-01 | 住友富士电梯有限公司 | A kind of Double-shaft elevator control method, device, computer equipment and storage medium |
| WO2020238661A1 (en) * | 2019-05-24 | 2020-12-03 | 深圳壹账通智能科技有限公司 | Elevator scheduling method, device, computer apparatus, and storage medium |
| CN110921448A (en) * | 2019-12-03 | 2020-03-27 | 广州广日电梯工业有限公司 | Elevator car space detection and intelligent reminding system and implementation method |
| CN110921448B (en) * | 2019-12-03 | 2021-08-17 | 广州广日电梯工业有限公司 | Elevator car space detection and intelligent reminding system and implementation method |
| CN114194958A (en) * | 2021-12-23 | 2022-03-18 | 中机国能电力工程有限公司 | Intelligent elevator control method and system |
| CN114560361A (en) * | 2022-03-01 | 2022-05-31 | 徐工汉云技术股份有限公司 | Elevator running method based on human body induction device |
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