CN2430416Y

CN2430416Y - Signal collector in lift remote control system

Info

Publication number: CN2430416Y
Application number: CN 00238667
Authority: CN
Inventors: 刘驰; 付云海; 蒋华安; 王贯山
Original assignee: LIFT REPAIR Co BEIJING EQUIPMENT MOUNTING ENGINEERING Co
Current assignee: LIFT REPAIR Co BEIJING EQUIPMENT MOUNTING ENGINEERING Co
Priority date: 2000-06-26
Filing date: 2000-06-26
Publication date: 2001-05-16
Anticipated expiration: 2010-06-26

Abstract

The utility model relates to a signal collecting device in elevator remote control systems, which belongs to an electrical signal collecting device which adopts electronic technology and matrix scan. The utility model is suitable for the collection of running state signals of the remote control of elevators. The utility model is characterized in that the utility model is provided with a matrix scanning device composed of an electro-optic coupling device, etc. and a programmable controller, wherein, circular scan pulses are output from one output port of the programmable controller can monitor the state of a plurality of input ports so as to detect running state signals of corresponding elevators. The utility model has the advantages of enhanced utilization rate and low cost, and furthermore, the utility model expands the quantity of switching value collected by the programmable controller used for remote monitor systems of elevators.

Description

Signal pickup assembly in the elevator remote monitoring system

The utility model relates to the electrical signal collection device that adopts Eltec and matrix-scanning, is particularly useful in the elevator remote monitoring system collection to the elevator operation signal.

At present in elevator remote monitoring system to the collection of elevator operation switching value, generally use micro controller system to finish.And when using Programmable Logic Controller, it gathers switching value amount of state, and only the quantity with the entrance point of Programmable Logic Controller is identical, and in order to increase the quantity of collectable on off state, input, the output that often will increase Programmable Logic Controller are counted, certainly will raise the cost, reduce degree of utilization.

The purpose of this utility model is exactly to overcome the shortcoming that above-mentioned prior art exists, and provides a kind of input, output that does not increase Programmable Logic Controller to count, with regard to the signal pickup assembly in the elevator remote monitoring system that can increase collectable switching value number of states.

The purpose of this utility model can realize in the following manner.

This technical scheme relates to the operating state signal collection point of elevator control cabinet, the front-end collection device, designed front-end collection device is made of matrix-scanning device and Programmable Logic Controller, this matrix-scanning device is provided with optical coupling device 2 and input bleeder circuit 4, the input end of optical coupling device 2 connects the operating state signal collection point of elevator control cabinet 1 through input bleeder circuit 4, the mouth of optical coupling device 2 connects the delivery port of Programmable Logic Controller 3 respectively, input port, the elevator operation signal input optical coupling device 2 that bleeder circuit 4 is gathered from elevator control cabinet 1, make device 2 be in conducting or off state, the delivery port of Programmable Logic Controller 3 is constantly exported the scan round pulse, when optical coupling device 2 is conducting state, it is high level that Programmable Logic Controller 3 scans its input port signal, when optical coupling device was off state, the signal that Programmable Logic Controller 3 scans its input port was a low level.Described matrix-scanning device is made up of the wiring board identical with said structure, 1 delivery port of the every only corresponding Programmable Logic Controller 3 of plate, but corresponding input port more than 1, and the quantity of optical coupling device 2 is identical with the quantity of the input port of Programmable Logic Controller.The Programmable Logic Controller that m delivery port and n input port are arranged, the elevator run switch amount of state of being gathered is m * n.

The utility model has the advantages that: 1. utilize Programmable Logic Controller and matrix-scanning device can be implemented in the elevator operation signal of gathering different voltage classs in the elevator remote monitoring system; 2. the switching value quantity of utilizing this device to gather is m times of prior art, thereby can improve the degree of utilization of Programmable Logic Controller greatly, has reduced cost; 3. this device has adopted the photoelectricity isolation, and actv. safety methods such as overcurrent, short-circuit protection make by acquisition target and long distance control system and do not disturb mutually, and device security is reliable.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a circuit structure block diagram of the present utility model

Fig. 2 is a block matrix trace wiring plate and the cooresponding schematic circuit diagram of Programmable Logic Controller

Programmable Logic Controller in the present embodiment adopts Siemens S7 series, 1 delivery port Q0.1 and 7 input port I0.1～I0.n that corresponding device able to programme 3 is arranged on every block of plate, 7 photoelectricity coupling device T1～T7 should be arranged mutually, have the identical wiring board of 5 block structures, constitute the matrix-scanning device.

Be connected to input bleeder circuit 4 between its optical coupling device and the elevator control cabinet, the quantity of input bleeder circuit 4 is identical with the quantity of optical coupling device 2; On every block matrix trace wiring plate, input end a1～an of each optical coupling device T1～Tn meets the corresponding operating state signal of elevator control cabinet collection point DT1～DTn through each input bleeder circuit respectively, the input common port b1 of this optical coupling device～bn ground connection in parallel, the output common port c1～cn of each optical coupling device meets 1 delivery port Q0.1 of Programmable Logic Controller 3, and another mouth d1-dn meets Programmable Logic Controller 3 cooresponding input port I0.1～I0.n (n is 7) respectively.

Import as seen from Figure 2 bleeder circuit (to be example) with optocoupler T1 bonded assembly by divider resistance R1, R2 be connected in series diode D1, the insurance F1 constitute; between the input port I0.1 of the mouth d1 of optical coupling device T1 and Programmable Logic Controller 3, be connected to diode D14 and the clamp resistance R15 that prevents counter-current, between the mouth Q0.1 of the mouth c1 of optocoupler T1 and Programmable Logic Controller 3, also be connected to the insurance F8 of overcurrent protection.The structure in other each bar loop is also the same.Adopting input bleeder circuit one is in order to adapt to the signal of the different voltage classs of elevator operation, also to satisfy the requirement of optical coupling device to voltage signal simultaneously.

Below be the principle of work that example illustrates this device with a loop, when the voltage signal that receives of input end IN1 of input bleeder circuit is high level, the input end a1 of optical coupling device T1,2 conductings of b1, make its mouth c1,2 conductings of d1, when if the scan round pulse of the delivery port Q0.1 of Programmable Logic Controller 3 output at this moment also just in time is high level, because optocoupler T1 is logical state, then to be scanned up to the input port I0.1 of Programmable Logic Controller 3 are high level to this scanning pulse signal, otherwise when the voltage signal that receives of input end IN1 of input bleeder circuit is low level, optocoupler T1 is an off state, what then Programmable Logic Controller 3 delivery port Q0.1 were scanned up to input port I0.1 is low level, 1 delivery port can be monitored the state of 7 input ports thus, and the wiring board of 5 same structures just can be monitored the state of 35 input ports.And the on off mode of the detected optical coupling device of Programmable Logic Controller is exactly the state of corresponding elevator operation signal, has realized expanding the quantity that Programmable Logic Controller can be gathered switching value thus.

Claims

1. the signal pickup assembly in the elevator remote monitoring system, the operating state signal collection point that comprises elevator control cabinet, the front-end collection device, it is characterized in that: the front-end collection device is made of matrix-scanning device and Programmable Logic Controller, this matrix-scanning device is provided with optical coupling device (2) and input bleeder circuit (4), the input end of optical coupling device (2) connects the operating state signal collection point of elevator control cabinet (1) through input bleeder circuit (4), the mouth of optical coupling device (2) connects the delivery port of Programmable Logic Controller (3) respectively, input port, the elevator operation signal input optical coupling device (2) that bleeder circuit (4) is gathered from elevator control cabinet (1), make device (2) be in conducting or off state, the delivery port of Programmable Logic Controller (3) is constantly exported the scan round pulse, when optical coupling device (2) is conducting state, it is high level that Programmable Logic Controller (3) scans its input port signal, when optical coupling device was off state, the signal that Programmable Logic Controller (3) scans its input port was a low level;

Described matrix-scanning device is made up of the wiring board identical with said structure, 1 delivery port of the every only corresponding Programmable Logic Controller of plate (3), but corresponding input port more than 1, the quantity of optical coupling device (2) is identical with the quantity of the input port of Programmable Logic Controller.

2. the signal pickup assembly in the elevator remote monitoring system according to claim 1 is characterized in that: the quantity of described input bleeder circuit (4) is identical with the quantity of optical coupling device (2); On every block matrix trace wiring plate, ((a1～an) meets the corresponding operating state signal of elevator control cabinet collection point (DT1～DTn) through each input bleeder circuit respectively to the input end of T1～Tn) to each optical coupling device, the input common port of this optical coupling device (ground connection in parallel of b1～bn), (c1～cn) connects 1 delivery port (Q0.1) of Programmable Logic Controller (3) to the output common port of each optical coupling device, and (d1～dn) meets the cooresponding input port of Programmable Logic Controller (3) (I0.1～I0.n) respectively to another mouth.

3. the signal pickup assembly in the elevator remote monitoring system according to claim 1 is characterized in that: the Programmable Logic Controller of m delivery port and n input port is arranged, and the elevator run switch amount of state of being gathered is m * n.