CN1036260C - Signal acquisition and display apparatus for elevator - Google Patents
Signal acquisition and display apparatus for elevator Download PDFInfo
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- CN1036260C CN1036260C CN 92100601 CN92100601A CN1036260C CN 1036260 C CN1036260 C CN 1036260C CN 92100601 CN92100601 CN 92100601 CN 92100601 A CN92100601 A CN 92100601A CN 1036260 C CN1036260 C CN 1036260C
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Abstract
The present invention relates to a signal acquisition and display device used for elevators. Three signal sources of the present invention are connected as a ring oscillator, output ends of the signal sources are respectively connected with an inner selection circuit, an outer calling upstream circuit and an outer calling downstream circuit. The present invention can be matched with a programmable controller and can control and operate the elevator so as to directly acquire, identify, memorize and display completion signals. Therefore, the present invention not only simplifies circuits, but also increases device reliability. According to the present invention, eight transmission lines in each floor for inner selection, elevator calling, floor position and display are reduced to one transmission line, and the programmable controller needs only one input point from original eight input-output points in each floor.
Description
The present invention is a kind of device that elevator is operated and controlled of being used for.
Elevator is a kind of many inputs and many output signals control system.Except that basic control signal, every stop needs 4 incoming signals (interior choosing, outgoing call is up, outgoing call is descending, floor position), and corresponding 4 output shows signal.Using microcomputer-controlled elevator, defeated people's signal by each layer and car through hoistway be sent to top layer control machine room by cable, output signal after machine is handled as calculated is sent to each layer by machine room through hoistway again and shows.Every increase first floor, hoistway need increase by 8 transmission lines.Hoistway is the space of the vertical operation of elevator cab, and signal wire (SW) very easily is interfered when transmitting signal through hoistway.The input and output level of microcomputer and control setup is all lower, for improving disturbance rejection and power-handling capability, needs to adopt multinomial measures such as level conversion, power amplifier and isolation, and this not only increases the complexity of interface circuit, and reliability is under some influence.
Warp and the online information retrieval of U.S. DIALOG information retrieval system, find two pieces of pertinent literatures, all do not relate to and utilize programmable controller and the content of the collection of the multiple signal of elevator (layer selection signal, calling signal, elevator position, breakdown signal, running velocity and control etc.) transmission and direct demonstration aspect.
The object of the present invention is to provide a kind of elevator signal collection and read out instrument, can directly receive and drive direct current 24V electric signal, and need not to add other transfer device, can directly finish collection, identification, memory and the demonstration of many signals.This device all transmits interior choosing, calling signal via single line, floor position and shows signal are then directly handled back output, does not take the operation time of programmable controller.This device and programmable controller are used, and make programmable controller need take 8 input and output points by original every increase one deck and are reduced to and only account for an entrance point, realize with small-sized programmable sequence controller control high rise elevator.
The present invention realizes as follows.
Fig. 1 is schematic circuit diagram of the present invention, and each component symbol is described as follows among the figure:
S11.S21 ... SNI selects button in being
H11.H21 ... HNI selects display lamp in being
S12.S22 ... S (N-1) 2 is the up button of outgoing call
H12.H22 ... H (N-1) 2 is the up display lamp of outgoing call
S23.S33 ... SN3 is the outgoing call descending button
H23.H33 ... HN3 is the descending display lamp of outgoing call
K1.K2 ... KN is the floor relay, corresponding relays adhesive when elevator operates in certain layer.
N is the top building number of institute's control elevator
KS up direction relay, elevator go up surely to the time adhesive
KX down direction relay, elevator fix to the time adhesive
P1, P2, P3 are three NE555 IC chips, resistance R, electricity that every NE555 chip and it link Hold C and diode V and consist of a signal source. Produce the square liquid of certain frequency. For guaranteeing after energising P1, P2, P3 Output 3, the output that certain signal source is only arranged at any time is high level, and three signal sources are connected into ring-type. It is signal source The output of P1 [3] connects the input [2] of signal source [P2] through differential capacitance [C4], and the output [3] of signal source [P2] is through little Divide electric capacity [C5] to connect the input [2] of signal source [P3], the output [3] of signal source [P3] connects signal source through differential capacitance [C6] The input of [P1] [2] consists of a ring oscillator, and its output waveform as shown in Figure 2.
Because each floor circuit is similar, be introduced take two layers as example. The output [3] of signal source [P1] is through current-limiting resistance [R04] Connect photoelectrical coupler [E1-1], [E2-1] ... the former limit of [EN-1]. The output [3] of signal source [P2] is through the current limliting electricity Resistance [R05] connects photoelectrical coupler [E1-2], and [E2-2] ... the former limit of [E (N-1)-2], the output of signal source [P3] [3] meet photoelectrical coupler [E2-3], [E3-3] through current-limiting resistance [R06] ... the former limit of [N-3]. The anode of power supply [24V] pays limit, diode [V21] with interior button [S21], the photoelectrical coupler [E2-1] of selecting, and output [X2] is connected to and can compiles The input of cyclelog consists of path, and [E2-1] pays the limit through divider resistance [R22], [R23] dividing potential drop and IGCT simultaneously [V22], current-limiting resistance [R21], display lamp [H21], the normally-closed contact of floor relay [K2] links. Power positive end [24V] Be connected to and compile with pair limit, diode [V23], the output [X2] of the up button of outgoing call [S22], photoelectrical coupler [E2-2] The cyclelog input consists of path. Photoelectrical coupler [E2-2] pays the limit through divider resistance [R25], [R26] simultaneously Dividing potential drop and IGCT [V24], current-limiting resistance [R24], display lamp [H22] are connected to power positive end [24V] mutually, IGCT [V24] Negative electrode one tunnel connects floor relay [K2] ground connection through diode [V26], and another road connects the line direction relay through diode [V25] Normally-closed contact [KS] ground connection.
Principle of work of the present invention is, move by the interior button [S21] that selects as the people, when the mouth [3] of signal source [P1] is high level, + 24V power supply through in select button [S21], photoelectrical coupler [E2-1] pay limit and diode [V21] make mouth [X2] produce one+24V in select the signal input programmable logic controller, and should in select signal to make [V22] conducting and keep from the limit is added in thyristor [V22] after divider resistance [R22], [R23] dividing potential drop the control utmost point paid of [E2-1].Select display lamp [H21] current-limiting resistance [R21], thyristor [V22] and floor relay [K2] to make in the power supply warp of [+24V] and show that memory lamp [H21] is bright.Its normally closed contact of relay when elevator runs to two layers [K2] adhesive disconnects, and display lamp [H21] extinguishes signal relief.Press the up button of outgoing call [S22] as the people, when the mouth [3] of signal source [P2] is high level, + 24V power supply makes [X2] end produce an outgoing call upward signal input programmable logic controller through the limit of paying of [S22], [E2-2] with [V23], and this signal makes it conducting and maintenance from the limit is added in [V24] after resistance [R25] and [R26] dividing potential drop the control utmost point of paying of [E2-2], and [H22] is bright for display lamp.When elevator runs to two layers, the normally closed disconnection of K2, if this moment, elevator was up then [KS] adhesive, [KS] normally closed point disconnects, and [H22] extinguished.Discharge if elevator is descending then [KS], its normally closed point is connected, make+the 24V power supply is through [H22], [R24], [V24], [V25] and [KS] normally closed formation path, and [H22] continues bright.Finish equidirectional disannuling a call, the function that reversing sense is protected number.Press the descending button of outgoing call [S23] as the people, when [3] of [P3] end is high level, make [X2] end produce outgoing call downgoing signal input programmable logic controller, and make display lamp [H23] bright, when elevator ran to two layers, [K2] is normally closed to continue out, if elevator is descending, then [KX] normally closed point disconnects, and [H23] extinguishes.If ascending for elevator, then [KX] normally closed point is connected, and [H23] continues bright.Finish in the same way and disannul a call, the function of oppositely protecting number.
Use this device to cooperate elevator is operated control with programmable controller, not only increased the alerting ability of controllable function and control, and because this device can directly receive and drive direct current 24V electric signal, and need not to add other transfer device, can directly finish collection, identification, memory and the demonstration of many signals.Circuit reduction so not only, but also improved the reliability of equipment.Floor position and shows signal are after this device is handled because this device can all transmit interior choosing, calling signal via single line
Therefore directly output can make original every layer of 8 transmission signals be linked to machine room through hoistway, is reduced to every layer and only needs 1 transmission signal line.Not only reduce the wiring of hoistway, and improved reliability.Also make programmable controller need take 8 input and output points and be reduced to and only account for an entrance point, thereby can realize with small-sized programmable sequence controller control high rise elevator by original every increase first floor.
Claims (5)
1. elevator signal collection that is made of button, calling signal display lamp, relay and read out instrument is characterized in that being made of three NE555 integrated circuit [P1, P2, P3] and the resistance that links with it, electric capacity, diode that three signal sources produce the square wave of a certain frequency, three signal sources are connected into ring-type, the mouth [3] of signal source [P1] selects circuit in current-limiting resistance [R04] connects, the mouth [3] of signal source [P2] connects the outgoing call upstream circuitry through current-limiting resistance [R05], and the mouth [3] of signal source [P3] connects the outgoing call downstream circuitry through current-limiting resistance [R06].
2. described elevator signal collection of claim 1 and read out instrument, it is characterized in that the mouth of signal source [P1] connects the input end [2] of signal source [P2] through differential capacitance [C4], the mouth [3] of signal source [P2] connects the input end [2] of signal source [P3] through differential capacitance [C5], the mouth [3] of signal source [P3] connects the input end [2] of signal source [P1] through differential capacitance [C6], constitutes a ring-type oscillator.
3. claim 1 or 2 described elevator signal collection and read out instruments, the mouth [3] that it is characterized in that signal source [P1] is through current-limiting resistance [R04] and photoelectrical coupler [E1-1], [E2-1] ... the primary edge series of [EN-1] connects, the mouth [3] of signal source [P2] is through current-limiting resistance [R05] and photoelectrical coupler [E1-2], [E2-2] ... the primary edge series of [E (N-1)-2] connects, and the mouth [3] of signal source [P3] is through current-limiting resistance [R06] and photoelectrical coupler [E2-3], [E3-3] ... the primary edge series of [EN-3] connects.
Claim 1 or 2 described elevator signal collections and read out instrument it is characterized in that power positive end [24V] with in select button [S21], photoelectrical coupler [E2-1] to pay the limit, the input end that diode [V21], mouth [X2] are connected to programmable controller constitutes path; [E2-1] pair limit links through the normally closed contact [K2] of divider resistance [R22], [R23] dividing potential drop and thyristor [V22], current-limiting resistance [R21], display lamp [H21], floor relay simultaneously.
5. claim 1 or 2 described elevator signal collection and read out instruments, it is characterized in that power positive end [24V] and the up button of outgoing call [S22], pair limit of photoelectrical coupler [E2-2], diode [V23], mouth [X2] is connected to the programmable controller input end and constitutes path, photoelectrical coupler [E2-2] pays the limit through divider resistance [R25] simultaneously, [R26] dividing potential drop and thyristor [V24], current-limiting resistance [R24], display lamp [H22] is connected to power positive end [24V] mutually, the negative electrode one tunnel of thyristor [V24] connects floor relay normally closed contact [K2] ground connection through diode [V26], and another road connects line direction relay [KS] ground connection through diode [V25].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100601 CN1036260C (en) | 1992-01-29 | 1992-01-29 | Signal acquisition and display apparatus for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100601 CN1036260C (en) | 1992-01-29 | 1992-01-29 | Signal acquisition and display apparatus for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074883A CN1074883A (en) | 1993-08-04 |
| CN1036260C true CN1036260C (en) | 1997-10-29 |
Family
ID=4938706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100601 Expired - Fee Related CN1036260C (en) | 1992-01-29 | 1992-01-29 | Signal acquisition and display apparatus for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036260C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6520539B2 (en) * | 2015-08-05 | 2019-05-29 | 三菱電機ビルテクノサービス株式会社 | Search system |
| CN105417449A (en) * | 2015-12-24 | 2016-03-23 | 倍特（常州）机械科技有限公司 | Platform operation controller for aerial work cars |
-
1992
- 1992-01-29 CN CN 92100601 patent/CN1036260C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1074883A (en) | 1993-08-04 |
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