CN211687833U - Door lock data acquisition system of elevator - Google Patents
Door lock data acquisition system of elevator Download PDFInfo
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- CN211687833U CN211687833U CN202020197881.1U CN202020197881U CN211687833U CN 211687833 U CN211687833 U CN 211687833U CN 202020197881 U CN202020197881 U CN 202020197881U CN 211687833 U CN211687833 U CN 211687833U
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Abstract
The utility model relates to a lift's lock data acquisition system, its characterized in that: the safety door lock control circuit comprises a data acquisition unit, a safety door lock control circuit and a single chip microcomputer for identifying analog signals; the system comprises at least one group of data collectors, a single chip microcomputer, a safety door lock control circuit and a safety door lock control circuit, wherein the at least one group of data collectors are used for collecting car door opening and closing signals, the at least one group of data collectors are used for collecting hall door opening and closing signals, the collecting signal input ends of the data collectors are connected with corresponding ports on a wiring terminal in the safety door lock control circuit, and the; the data acquisition unit comprises a first current-limiting voltage-reducing resistor, a rectifier bridge, a filter capacitor, a fourth current-limiting voltage-reducing resistor and a linear optocoupler; the first current-limiting voltage-reducing resistor is respectively connected with the acquisition signal input end and the rectifier bridge; the linear optocoupler is respectively connected with the rectifier bridge and the collected signal output end; the filter capacitor is connected in parallel between the rectifier bridge and the linear optocoupler; and the fourth current-limiting voltage-reducing resistor is connected in parallel between the filter capacitor and the linear optocoupler. This lock data acquisition system can effectively monitor lock on-off state.
Description
Technical Field
The utility model relates to a lift specifically is a lift's lock data acquisition system.
Background
In order to ensure the safe operation of the elevator, the related data of the door lock in the safety door lock control circuit needs to be acquired in real time so as to obtain the use condition of the door lock. In the existing data acquisition device for acquiring door lock data, a data acquisition circuit is shown in fig. 1, wherein 1 is an acquisition signal input end, 2 is a first current-limiting and voltage-reducing resistor, 3 is a resistor selection switch (selecting high voltage and resisting voltage), 4 is a second current-limiting and voltage-reducing resistor, 5 is a rectifier bridge, 6 is a filter capacitor, 7 is a third current-limiting and voltage-reducing resistor, 8 is an indicator light, 9 is a linear optical coupler, and 10 is an acquisition signal output end; during operation, a voltage signal is input to the acquisition signal input end, the voltage signal is sequentially input to the rectifier bridge and the linear optocoupler after being reduced in voltage through the second current-limiting voltage-reducing resistor, and finally the voltage signal is output to the single chip microcomputer on the system through the acquisition signal output end, and the single chip microcomputer identifies high and low level signals output by the acquisition signal end and then monitors whether the door lock is closed or not. Because the maximum voltage of the input end of the linear optocoupler is 3V, and the voltage value input by the acquisition signal input end far exceeds 3V, a second current-limiting voltage-reducing resistor needs to be connected in series in the circuit to reduce the voltage entering the linear optocoupler; the elevator on the market is various, and the signal point voltage of the elevator of different brands, model is different, and low 48V that has, high 230V that has, the signal point voltage span of different elevators is great, so often No. two current-limiting step-down resistance is difficult to adapt to, generally need set up No. two current-limiting step-down resistance of difference and match, ensures that the photosensitive tube work of linear opto-coupler is in ending district and saturation area. It can be seen that the prior art has the following disadvantages: 1. the single chip microcomputer can only identify high and low level signals output by the circuit, and the arrangement of the resistance selection switch and the second current-limiting voltage-reducing resistor causes the circuit structure to be complex, the manufacturing cost to be high and the universality to be low; 2. in the elevator signal, the voltage of the signal point of the high-level signal is DC110V, the voltage of the signal point of the low-level signal is DC60V, and the single chip microcomputer can only identify the high-level signal no matter whether the high-level signal or the low-level signal is input.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a can effectively monitor lock on-off state's lock data acquisition system, it has that circuit structure is succinct, the dependable performance, and the commonality is good, characteristics such as strong adaptability.
The purpose of the utility model is realized like this:
the utility model provides a lift's lock data acquisition system which characterized in that: the safety door lock control circuit comprises more than two groups of data acquisition units, a safety door lock control circuit and a single chip microcomputer for identifying analog signals; the system comprises at least one group of data collectors, a single chip microcomputer, a safety door lock control circuit and a safety door lock control circuit, wherein the at least one group of data collectors are used for collecting car door opening and closing signals, the at least one group of data collectors are used for collecting hall door opening and closing signals, the collecting signal input ends of the data collectors are connected with corresponding ports on a wiring terminal in the safety door lock control circuit, and the collecting signal output; the data acquisition unit comprises a first current-limiting voltage-reducing resistor, a rectifier bridge, a filter capacitor, a fourth current-limiting voltage-reducing resistor and a linear optocoupler; the first current-limiting voltage-reducing resistor is respectively connected with the acquisition signal input end and the rectifier bridge; the linear optocoupler is respectively connected with the rectifier bridge and the collected signal output end; the filter capacitor is connected in parallel between the rectifier bridge and the linear optocoupler; and the fourth current-limiting voltage-reducing resistor is connected between the filter capacitor and the linear optocoupler in parallel.
The acquisition signal input end comprises a first signal input end and a second signal input end; one end of the first current-limiting voltage-reducing resistor is connected with the first signal input end, and the other end of the first current-limiting voltage-reducing resistor is connected with an a port on the rectifier bridge; and the second signal input end is internally connected with a port b on the rectifier bridge and a circuit signal output end on the external safety door lock control circuit.
A first signal input end in the data acquisition unit for acquiring a car door switch signal is externally connected with a car door port on a wiring terminal; a first signal input end in the data acquisition unit for gathering the hall switch model is externally connected with a hall door port on a wiring terminal.
A port c on the rectifier bridge is connected with a first optical coupler input end on the linear optical coupler, and a port d on the rectifier bridge is connected with a second optical coupler input end on the linear optical coupler; and the filter capacitor and the fourth current-limiting voltage-reducing resistor are connected between the port c and the port d in parallel.
The acquisition signal output end comprises a first signal output end and a second signal output end; the first signal output end is internally connected with a first optical coupler output end on the linear optical coupler and externally connected with a singlechip; and the second signal output end is internally connected with a second optical coupler output end on the linear optical coupler and is externally connected with a singlechip.
The safety door lock control circuit is provided with a detection terminal TN used for connecting a main door lock loop, and a door lock induction probe used for inducing whether the detection terminal TN has a voltage signal or not is arranged on the detection terminal TN.
The utility model has the advantages as follows:
the resistance selection switch, the second current-limiting voltage-reducing resistor and the third current-limiting voltage-reducing resistor in the traditional data acquisition device are eliminated, so that the data acquisition of the door lock is not realized by the singlechip through identifying high and low level signals any more. The singlechip in the system identifies the analog signal output by the acquisition signal output end by using an ADC (analog-to-digital conversion) technology so as to achieve the aim of acquiring door lock data; meanwhile, the analog signal output by the signal output end can be identified and collected based on the single chip microcomputer, so that the photosensitive tube of the linear optical coupler can work in a cut-off area, an amplification area and a saturation area. The method has the following advantages: 1. related devices such as a resistance selection switch, a second current-limiting voltage-reducing resistor, a third current-limiting voltage-reducing resistor and the like are removed, so that a data acquisition circuit in the data acquisition unit is simpler; 2. the singlechip recognizes the analog signal output by the acquisition signal output end by using the ADC technology to achieve the purpose of data acquisition, so that a resistance selection switch is not required to be arranged for selecting and switching high voltage and low voltage, and the analog signal is directly used for distinguishing; 3. the single chip microcomputer can identify the analog signal, so that the voltage changes regardless of the input high-level voltage (DC 100V) or low-level voltage (DC 60V), namely, the single chip microcomputer can identify the high-level voltage and the low-level voltage, and the voltage effective value range of the identifiable signal point is wider.
Drawings
Fig. 1 is a circuit diagram of a data acquisition circuit of a data acquisition device in the prior art.
Fig. 2 is a circuit diagram of a data collector in an embodiment of the present invention.
Fig. 3 is a circuit diagram of a security door lock control circuit according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 2 and 3, the door lock data acquisition system of the elevator comprises two groups of data acquisition devices A, a safety door lock control circuit and a single chip microcomputer 11 for identifying analog signals; one group of data acquisition devices A is used for acquiring car door opening and closing signals, the other group of data acquisition devices A is used for acquiring hall door opening and closing signals, acquisition signal input ends 1 on the two data acquisition devices A are respectively connected with corresponding ports on a wiring terminal X in a safety door lock control circuit, and an acquisition signal output end 10 on the data acquisition devices A is connected with a single chip microcomputer 11; the data acquisition unit A comprises a first current-limiting voltage-reducing resistor 2, a rectifier bridge 5, a filter capacitor 6, a fourth current-limiting voltage-reducing resistor 13 and a linear optocoupler 9, wherein the rectifier bridge 5 is compatible with alternating current signals and prevents positive and negative reverse connection of the signals, and the linear optocoupler can simulate signal isolation and signal voltage conversion; the first current-limiting voltage-reducing resistor 2 is respectively connected with the acquisition signal input end 1 and the rectifier bridge 5; the linear optocoupler 9 is respectively connected with the rectifier bridge 5 and the collected signal output end 10; the filter capacitor 6 is connected in parallel between the rectifier bridge 5 and the linear optocoupler 9; and a fourth current-limiting voltage-reducing resistor 13 is connected in parallel between the filter capacitor 6 and the linear optocoupler 9.
Further, the acquisition signal input terminal 1 includes a first signal input terminal 101 and a second signal input terminal 102; one end of the first current-limiting voltage-reducing resistor 2 is connected with the first signal input end 101, and the other end is connected with the port a on the rectifier bridge 5; the second signal input end 102 is internally connected with a port b on the rectifier bridge 5 and is externally connected with a circuit signal output end 04 on the safety door lock control circuit.
Furthermore, a first signal input end 101 of the data acquisition unit A for acquiring the car door switch signal is externally connected with a car door port X26 in the safety door lock control circuit, and the car door port X26 is connected with a car door switch; a first signal input end 101 in the data acquisition unit A for acquiring the model of the hall switch is externally connected with a hall door port X28 in the safety door lock control circuit, and the hall door port X28 is connected with the hall switch; the second signal input ends 102 of the two groups of data collectors a are respectively connected with the circuit signal output end 04.
Further, a port c on the rectifier bridge 5 is connected with a first optocoupler input end 901 on the linear optocoupler 9, a port d on the rectifier bridge 5 is connected with a second optocoupler input end 902 on the linear optocoupler 9, and an indicator light 8 is connected between one end of the fourth current-limiting voltage-reducing resistor 13 and the second optocoupler input end 902; and the filter capacitor 6 and a fourth current-limiting voltage-reducing resistor 13 are connected between the port c and the port d in parallel.
Further, the collected signal output terminal 10 includes a first signal output terminal 1001 and a second signal output terminal 1002; the first signal output end 1001 is internally connected with a first optical coupler output end 903 on the linear optical coupler 9 and is externally connected with the singlechip 11; the second signal output terminal 1002 is connected with a second optical coupler output terminal 904 of the linear optical coupler 9 and is externally connected with the singlechip 11. The first signal output terminal 1001 and the second signal output terminal 1002 on the two groups of data acquisition devices a are respectively connected with the single chip microcomputer 11.
Furthermore, a detection terminal TN used for connecting a main door lock loop is arranged on the safety door lock control circuit, and a door lock induction probe used for inducing whether the detection terminal TN has a voltage signal is arranged on the detection terminal TN; the detection terminal TN is connected to the master lock loop through the master lock port X27 on the connection terminal X. Specifically, when the safety loop B in the safety door lock control circuit outputs a high level signal, the elevator door of the elevator is opened, the car door switch and/or the hall door switch are/is disconnected, and at the moment, the door lock sensing probe does not sense a voltage signal on the detection terminal TN and outputs a low level signal to the corresponding data acquisition unit A; when a safety loop B in the safety door lock control circuit outputs a high level signal, the elevator door of the elevator is closed, the car door switch and/or the hall door switch are/is closed, and at the moment, the door lock sensing probe senses a voltage signal on the detection terminal TN and outputs the high level signal to the data acquisition unit A; through the data acquisition of the car door switch and/or the hall door switch, the state of the opening and closing of the elevator door can be effectively obtained.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a lift's lock data acquisition system which characterized in that: the safety door lock control system comprises more than two groups of data collectors (A), a safety door lock control circuit and a single chip microcomputer (11) for identifying analog signals; the safety door lock control circuit comprises at least one group of data acquisition devices (A) and a single chip microcomputer (11), wherein the at least one group of data acquisition devices (A) are used for acquiring car door opening and closing signals, the at least one group of data acquisition devices (A) are used for acquiring hall door opening and closing signals, an acquisition signal input end (1) on each data acquisition device (A) is connected with a corresponding port on a wiring terminal (X) in the safety door lock control circuit, and an acquisition signal output end (10) on each data acquisition; the data acquisition unit (A) comprises a first current-limiting voltage-reducing resistor (2), a rectifier bridge (5), a filter capacitor (6), a fourth current-limiting voltage-reducing resistor (13) and a linear optocoupler (9); the first current-limiting voltage-reducing resistor (2) is respectively connected with the acquisition signal input end (1) and the rectifier bridge (5); the linear optocoupler (9) is respectively connected with the rectifier bridge (5) and the collected signal output end (10); the filter capacitor (6) is connected in parallel between the rectifier bridge (5) and the linear optocoupler (9); and the fourth current-limiting voltage-reducing resistor (13) is connected in parallel between the filter capacitor (6) and the linear optocoupler (9).
2. The system for acquiring door lock data of an elevator according to claim 1, wherein: the acquisition signal input (1) comprises a first signal input (101) and a second signal input (102); one end of the first current-limiting voltage-reducing resistor (2) is connected with the first signal input end (101), and the other end of the first current-limiting voltage-reducing resistor is connected with an a port on the rectifier bridge (5); and the second signal input end (102) is internally connected with a port b on the rectifier bridge (5) and a circuit signal output end (04) on the external safety door lock control circuit.
3. The system for acquiring door lock data of an elevator according to claim 2, wherein: a first signal input end (101) in a data collector (A) for collecting a car door switch signal is externally connected with a car door port (X26) on a wiring terminal (X); a first signal input end (101) in a data collector (A) for collecting the types of the hall switches is externally connected with a hall door port (X28) on a wiring terminal (X).
4. The system for acquiring door lock data of an elevator according to claim 2, wherein: a port c on the rectifier bridge (5) is connected with a first optical coupler input end (901) on the linear optical coupler (9), and a port d on the rectifier bridge (5) is connected with a second optical coupler input end (902) on the linear optical coupler (9); and the filter capacitor (6) and the fourth current-limiting voltage-reducing resistor (13) are connected between the port c and the port d in parallel.
5. The system for acquiring door lock data of an elevator according to claim 1, wherein: the acquisition signal output end (10) comprises a first signal output end (1001) and a second signal output end (1002); the first signal output end (1001) is internally connected with a first optical coupler output end (903) on the linear optical coupler (9) and is externally connected with a singlechip (11); and the second signal output end (1002) is internally connected with a second optical coupler output end (904) on the linear optical coupler (9) and is externally connected with a singlechip (11).
6. The system for acquiring door lock data of an elevator according to claim 1, wherein: the safety door lock control circuit is provided with a detection Terminal (TN) used for connecting a main door lock loop, and a door lock sensing probe used for sensing whether the detection Terminal (TN) has a voltage signal or not is arranged on the detection Terminal (TN).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197881.1U CN211687833U (en) | 2020-02-21 | 2020-02-21 | Door lock data acquisition system of elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197881.1U CN211687833U (en) | 2020-02-21 | 2020-02-21 | Door lock data acquisition system of elevator |
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| CN211687833U true CN211687833U (en) | 2020-10-16 |
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| CN202020197881.1U Active CN211687833U (en) | 2020-02-21 | 2020-02-21 | Door lock data acquisition system of elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4029819A1 (en) * | 2021-01-13 | 2022-07-20 | OTIS Elevator Company | Voltage signal processing unit, landing door fault location system and method, elevator system |
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2020
- 2020-02-21 CN CN202020197881.1U patent/CN211687833U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4029819A1 (en) * | 2021-01-13 | 2022-07-20 | OTIS Elevator Company | Voltage signal processing unit, landing door fault location system and method, elevator system |
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