CN211712414U - Light curtain capable of giving door lock area signal - Google Patents
Light curtain capable of giving door lock area signal Download PDFInfo
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- CN211712414U CN211712414U CN201922420795.2U CN201922420795U CN211712414U CN 211712414 U CN211712414 U CN 211712414U CN 201922420795 U CN201922420795 U CN 201922420795U CN 211712414 U CN211712414 U CN 211712414U
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Abstract
The utility model relates to a can give light curtain of regional signal of lock, including signal detection transmitter, signal detection receiver and controller, the controller through connecting cable respectively with signal detection transmitter and signal detection receiver link to each other, the signal detection transmitter is used for sending detected signal to the receiver, the signal detection receiver just can receive when the lift-cabin door distance is less than the threshold value of settlement detection signal, the controller is according to whether the signal detection receiver receives the control signal that detected signal sent the difference. The utility model discloses can detect the trouble of door lock signal.
Description
Technical Field
The utility model relates to a light curtain especially relates to a can give the light curtain of lock regional signal.
Background
An elevator light curtain in the market generally cannot provide current door position information for an elevator, a door lock signal is used for detecting whether an elevator door is closed, and when the elevator is in a door opening state, the door lock signal is disconnected, the elevator is in a static state; when the elevator door is closed, the door lock signal is closed, and when the elevator control system detects the closed door lock signal, the elevator starts to move upwards or downwards. When the door lock signal is artificially short-circuited or caused by other reasons, even if the elevator door is opened, the door lock signal is in a closed state, the elevator door is not closed, the elevator starts to go up or down, and potential safety hazards are generated to passengers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a can give the light curtain of lock regional signal is provided, can detect the trouble of lock signal.
The utility model provides a technical scheme that its technical problem adopted is: the light curtain capable of giving out signals of a door lock area comprises a signal detection transmitter, a signal detection receiver and a controller, wherein the controller is respectively connected with the signal detection transmitter and the signal detection receiver through connecting cables, the signal detection transmitter is used for sending detection signals to the receiver, the signal detection receiver can receive the detection signals when the distance between elevator doors is smaller than a set threshold value, and the controller sends different control signals according to whether the signal detection receiver receives the detection signals.
The detection signal is an infrared signal.
The signal detection emitter is integrated in the light curtain emitter.
The signal detection receiver is integrated in the light curtain receiver.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses a transmitter transmission weak infrared signal for the receiver can only just receive when the distance is nearer, judges whether elevator system current position is at the regional within range of lock with this, thereby realizes the fault detection to the lock signal, has guaranteed passenger's life safety.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an installation schematic diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses an embodiment relates to a can give light curtain of regional signal of lock, as shown in FIG. 1, including signal detection transmitter, signal detection receiver and controller, the controller through connecting cable respectively with signal detection transmitter and signal detection receiver link to each other, signal detection transmitter is used for sending detected signal to the receiver, signal detection receiver just can receive when the lift-cabin door distance is less than the threshold value of settlement detection signal, the controller is according to whether signal detection receiver receives the control signal that detected signal sent the difference. It should be noted that the signal detection emitter in this embodiment is integrated into the light curtain emitter, and is installed in the light curtain frame together with the common light curtain emitter. The signal detection receiver is integrated in the light curtain receiver and is installed in the receiving light curtain frame together with the common light curtain receiver.
In the embodiment, the signal detection transmitter is used for transmitting a group of weak infrared signals, and when the distance between the signal detection receiver and the signal detection transmitter is relatively short (namely the distance between the elevator door and the signal detection transmitter is less than a set threshold), the signal detection receiver can read the infrared signals. When the distance between the signal detection receiver and the signal detection transmitter is far, the signal detection receiver cannot read the infrared signal, and the distance is judged in the mode.
As shown in fig. 2, the light curtain has a distance determination function in addition to the safety protection function of the ordinary light curtain. The light curtain is arranged on the car doors at two sides and moves along with the car doors, the door distance is judged in real time through the signal detection emitter and the signal detection receiver on the light curtain, when the door distance is smaller than or equal to 2cm, the signal detection receiver can receive signals, at the moment, the controller outputs 500us of high level and 1500us of low level pulses, and the elevator system is told that the current position is in the range of the door lock area; when the door interval is more than or equal to 5cm, the signal detection receiver can not receive signals, the controller outputs 1500us high level and 500us low level pulses to tell the elevator system that the current position is not in the door lock area range, if the elevator system still receives closed door lock signals at the moment, the door lock signals are in failure, the elevator should report an error at the moment, and maintenance personnel are informed to maintain, so that the personal safety of passengers is ensured.
It is not difficult to discover, the utility model discloses a weak infrared signal of transmitter transmission for the receiver can only just receive when the distance is nearer, with this judge whether elevator system current position is at the regional within range of lock, thereby realize the fault detection to the lock signal, guaranteed passenger's life safety.
Claims (4)
1. A light curtain capable of giving a door lock area signal comprises a signal detection emitter, a signal detection receiver and a controller, and is characterized in that the controller is respectively connected with the signal detection emitter and the signal detection receiver through connecting cables, the signal detection emitter is used for sending a detection signal to the receiver, the signal detection receiver can receive the detection signal when the distance between elevator doors is smaller than a set threshold value, and the controller sends different control signals according to whether the signal detection receiver receives the detection signal or not.
2. The light curtain capable of signaling the area of a door lock as claimed in claim 1, wherein the detection signal is an infrared signal.
3. The light curtain capable of signaling the area of the door lock as recited in claim 1, wherein the signal detection transmitter is integrated into the light curtain transmitter.
4. The light curtain capable of signaling the area of the door lock as recited in claim 1, wherein the signal detection receiver is integrated into the light curtain receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420795.2U CN211712414U (en) | 2019-12-30 | 2019-12-30 | Light curtain capable of giving door lock area signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420795.2U CN211712414U (en) | 2019-12-30 | 2019-12-30 | Light curtain capable of giving door lock area signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211712414U true CN211712414U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922420795.2U Active CN211712414U (en) | 2019-12-30 | 2019-12-30 | Light curtain capable of giving door lock area signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211712414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212650A (en) * | 2021-12-16 | 2022-03-22 | 日立楼宇技术（广州）有限公司 | Elevator detection updating method, computer equipment and storage medium |
-
2019
- 2019-12-30 CN CN201922420795.2U patent/CN211712414U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212650A (en) * | 2021-12-16 | 2022-03-22 | 日立楼宇技术（广州）有限公司 | Elevator detection updating method, computer equipment and storage medium |
| CN114212650B (en) * | 2021-12-16 | 2023-09-08 | 日立楼宇技术（广州）有限公司 | Detection updating method for elevator, computer equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 315800 No.1, building 1, 88 daqihulin Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: NINGBO WECO OPTOELECTRONICS Co.,Ltd. Address before: 315800 No.1, building 1, No.51 Longtanshan Road, Daqi, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO WECO OPTOELECTRONICS Co.,Ltd. |