CN111577059B - Door switch detection system based on digital gyroscope - Google Patents
Door switch detection system based on digital gyroscope Download PDFInfo
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- CN111577059B CN111577059B CN202010307311.8A CN202010307311A CN111577059B CN 111577059 B CN111577059 B CN 111577059B CN 202010307311 A CN202010307311 A CN 202010307311A CN 111577059 B CN111577059 B CN 111577059B
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- Prior art keywords
- door
- distance
- angle value
- value
- closing
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
- G01C19/5776—Signal processing not specific to any of the devices covered by groups G01C19/5607 - G01C19/5719
Abstract
The invention discloses a door switch detection system based on a digital gyroscope, which comprises: the gyroscope sensor is arranged in an external door body and outputs a real-time angle value according to the movement of the door body; the distance sensor is used for detecting a first distance value between the door body and an external door frame; a controller storing: closing the angle interval, comparing the distance with the door state and corresponding the angle with the distance; when the real-time angle value is in the closing angle range, outputting a door closing signal; and when the error between the real-time angle value and the reference angle value is greater than a preset error, obtaining the opening and closing state of the door from the distance and door state comparison table according to the first distance value. This technique uses distance sensor to detect whether the gyroscope sensor is in normal detection error, improves the system and judges the degree of accuracy of the on-off state of door.
Description
Technical Field
The invention relates to the technical field of door locking detection, in particular to a door opening and closing detection system based on a digital gyroscope.
Background
With the development of technology and the improvement of safety requirements of people, a detection system capable of detecting the opening and closing state of a door appears, the door is detected to be in an opening state or a closing state, and people can know the opening and closing state of the door through the detection system.
The existing door opening and closing detection system uses a gyroscope sensor as a detection element, the gyroscope sensor is installed on a door body, and the gyroscope sensor generates a position value along with the movement of the door body, so that the position of a current front door can be known, and the opening and closing state of the door can be known. However, when the gyro sensor is opened and closed many times along with the door, the detection is inaccurate, such as a large position error or a signal drift, and the detection error of the gyro sensor is large, so that the detection system erroneously determines the opening and closing state of the door, and the accuracy is lowered.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a door switch detection system based on a digital gyroscope.
A digital gyroscope based door switch detection system according to an embodiment of the invention comprises:
the gyroscope sensor is arranged in an external door body, outputs an angle value according to the movement of the door body, and records the angle value as a real-time angle value;
the distance sensor is used for detecting a distance value between the door body and an external door frame, and the distance value is recorded as a first distance value;
a controller storing: closing the angle interval, comparing the distance with the door state and corresponding the angle with the distance;
the controller is configured to include: when the real-time angle value is in a closing angle range, outputting a door closing signal;
when the real-time angle value is not located in the closing angle interval, acquiring a first distance value, finding an angle value corresponding to the first distance value according to an angle and distance correspondence table, and marking the angle value as a reference angle value;
comparing the reference angle value with a real-time angle value, and when the error between the real-time angle value and the reference angle value is greater than a preset error, obtaining the opening and closing state of the door from the distance and door state comparison table according to the first distance value, and outputting a corresponding signal according to the opening and closing state of the door;
and outputting a signal for opening the door when the error between the real-time angle value and the reference angle value is smaller than or equal to a preset error.
The door switch detection system based on the digital gyroscope provided by the embodiment of the invention at least has the following beneficial effects: the gyroscope sensor moves along with the door body and outputs a moving real-time angle value, and the distance sensor detects a distance value between the door body and the door frame; when the real-time angle value is within the closing angle interval, the controller outputs a door closing signal; when the real-time angle value is not positioned in the closing angle interval, in order to judge whether the gyroscope sensor works normally, the distance value between the door body and the door frame, namely a first distance value, is obtained firstly, the angle value corresponding to the first distance value, namely a reference angle value, is found according to the angle and distance correspondence table, and the reference angle value is compared with the real-time angle value; when the error between the real-time angle value and the reference angle value is smaller than or equal to a preset error, indicating that the gyroscope sensor is within a normal detection error, outputting a signal for opening the door; when the error between the real-time angle value and the reference angle value is larger than the preset error, the gyroscope sensor exceeds the normal detection error, the door opening and closing state is detected by using the distance sensor, the door opening and closing state is obtained from the distance and door state comparison table according to the first distance value, and the controller outputs a corresponding signal according to the door opening and closing state. The technology uses the distance sensor to detect whether the gyroscope sensor is within a normal detection error, so that the accuracy of the system for judging the opening and closing state of the door is improved; in addition, the distance sensor is also used for standby detection, and when the gyroscope sensor exceeds a normal detection error, the distance sensor is used for continuously judging the opening and closing state of the door, so that the normal work of the detection system is kept.
According to some embodiments of the invention, the distance sensor is an infrared distance measuring sensor, and the distance sensor is provided on the door frame.
According to some embodiments of the invention, the distance sensor is provided at an upper portion of the door frame.
According to some embodiments of the invention, the closing angle interval is greater than or equal to 0 degrees and less than or equal to 3 degrees.
According to some embodiments of the invention, the controller is a single chip microcomputer.
The invention is used for door switch detection.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic structural diagram of a door switch detection system according to an embodiment of the present invention;
FIG. 2 is a simplified flow chart of a detection method according to an embodiment of the present invention.
In the drawings: 101-door frame, 102-door body, 103-gyroscope sensor, 104-distance sensor and 105-controller.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise explicitly defined, terms such as provided, connected and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
A digital gyro-based door switch detection system according to an embodiment of the present invention will be described with reference to fig. 1 and 2.
The door switch detection system based on the digital gyroscope comprises:
a fixed door frame 101;
the door body 102 is rotatably connected with the door frame 101;
the gyroscope sensor 103 is arranged in the door body 102, outputs an angle value according to the movement of the door body 102, and the angle value is recorded as a real-time angle value;
the distance sensor 104 is used for detecting a distance value between the door body 102 and the door frame 101, and the distance value is recorded as a first distance value;
the controller 105 stores: closing the angle interval, comparing the distance with the door state and corresponding the angle with the distance; the closing angle interval refers to an angle range in which the door body 102 is determined to be in a closed state; the corresponding relation between the distance value between the door body 102 and the door frame 101 and the opening and closing state of the door is stored in the distance and door state comparison table, the corresponding door closing state when the distance value between the door body 102 and the door frame 101 is smaller than a certain value is arranged in the distance and door state comparison table, and the corresponding door opening state when the distance value between the door body 102 and the door frame 101 is larger than a certain value is arranged in the distance and door state comparison table; the angle-distance correspondence table stores a correspondence between a distance value detected by the distance sensor 104 and a movement angle value of the door in a normal state, and is used for obtaining the movement angle value of the door in the normal state according to the distance value detected by the distance sensor 104 so as to judge whether the gyro sensor 103 has a large error. The controller 105 may be an ARM system or a single chip.
The controller 105 is configured to include:
when the real-time angle value is in the closing angle range, outputting a door closing signal;
when the real-time angle value is not in the closing angle range, the door body 102 may be in an opening state or a large error occurs in the gyroscope sensor 103, acquiring a first distance value, finding an angle value corresponding to the first distance value according to the angle and distance correspondence table, and marking the angle value as a reference angle value;
comparing the reference angle value with the real-time angle value, setting a preset error in the controller 105, wherein the preset error is set in consideration of the detection error of the gyroscope sensor 103, and when the error between the real-time angle value and the reference angle value is greater than the preset error, obtaining the opening and closing state of the door from the distance and door state comparison table according to the first distance value, and outputting a corresponding signal according to the opening and closing state of the door;
and outputting a signal for opening the door when the error between the real-time angle value and the reference angle value is smaller than or equal to the preset error.
When the detection system is installed, the door body 102 is moved to the door closing position, the initial angle value of the gyro sensor 103 at the door closing position is set, and the real-time angle values output by the gyro sensor 103 are all the angle differences relative to the initial angle value.
The gyroscope sensor 103 moves along with the door 102 and outputs a real-time moving angle value, and the distance sensor 104 detects a distance value between the door 102 and the doorframe 101. When the real-time angle value is within the closing angle interval, the controller 105 outputs a door closing signal; when the real-time angle value is not within the closing angle range, in order to judge whether the gyroscope sensor 103 works normally, the distance value between the door body 102 and the door frame 101, namely a first distance value, is obtained first, the angle value corresponding to the first distance value, namely a reference angle value, is found according to the angle and distance correspondence table, and the reference angle value is compared with the real-time angle value. When the error between the real-time angle value and the reference angle value is smaller than or equal to a preset error, indicating that the gyroscope sensor 103 is within a normal detection error, outputting a signal for opening the gate; when the error between the real-time angle value and the reference angle value is larger than the preset error, which indicates that the gyro sensor 103 exceeds the normal detection error, the switch is switched to the state of detecting the opening and closing of the door by using the distance sensor 104, the opening and closing state of the door is obtained from the distance and door state comparison table according to the first distance value, and the controller 105 outputs a corresponding signal according to the opening and closing state of the door.
The invention uses the distance sensor 104 to detect whether the gyroscope sensor 103 is within a normal detection error, and improves the accuracy of the system for judging the opening and closing state of the door. In addition, the distance sensor 104 also serves as a backup detection, when the gyro sensor 103 exceeds a normal detection error, the gyro sensor 103 cannot be used in a short time, but the opening and closing state of the door still needs to be detected at this time, the door opening and closing state can be detected by using the distance sensor 104, the normal operation of the detection system is kept, and the door opening and closing state is switched back to use the gyro sensor 103 after the gyro sensor 103 returns to a normal state.
In some embodiments of the present invention, when the error between the real-time angle value and the reference angle value is greater than the preset error, it indicates that the gyroscope sensor 103 exceeds the normal detection error, the real-time angle value can be calibrated to the reference angle value, the real-time angle value is compared with the reference angle value after the door 102 moves, if the error between the real-time angle value and the reference angle value is still greater than the preset error, the gyroscope sensor 103 cannot be automatically calibrated, and needs to be manually maintained or replaced; if the error between the real-time angle value and the reference angle value is smaller than the preset error, the detection can be switched back to the gyroscope sensor 103.
In some embodiments of the present invention, the distance sensor 104 is an infrared distance measuring sensor, and the distance sensor 104 is disposed on the door frame 101. The infrared ranging sensor is installed on the door frame 101, and the infrared ranging sensor faces the door body 102, so that infrared rays emitted by the infrared ranging sensor can reach the door body 102 in the rotating process of the door body 102, and the distance from the infrared rays emitted by the infrared ranging sensor to the door body 102 changes along with the rotation of the door body 102. The distance and gate state comparison table and the angle and distance correspondence table can be calculated or measured in advance and stored. The distance sensor 104 may also use a magnetic distance sensor 104, an ultrasonic distance sensor 104, or the like, and both the magnetic distance sensor 104 and the ultrasonic distance sensor 104 may measure the distance from the door body 102 to the doorframe 101.
In some embodiments of the invention, the distance sensor 104 is provided at an upper portion of the door frame 101. The distance sensor 104 is arranged on the upper portion of the door frame 101 and is arranged at a position close to the top of the door body 102, so that the detection position of the distance sensor 104 is higher, and the influence of people walking through a doorway on detection is reduced.
In some embodiments of the invention, the closing angle interval is greater than or equal to 0 degrees and less than or equal to 3 degrees. When the real-time angle value output from the gyro sensor 103 is in the range of 0 to 3 degrees, it indicates that the door is in a closed state.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and various equivalent modifications or substitutions can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (4)
1. A digital gyroscope-based door switch detection system, comprising:
the gyroscope sensor is arranged in an external door body, outputs an angle value according to the movement of the door body, and records the angle value as a real-time angle value;
the distance sensor is used for detecting a distance value between the door body and an external door frame, and the distance value is recorded as a first distance value;
a controller storing: closing the angle interval, comparing the distance with the door state and corresponding the angle with the distance;
the controller is configured to include: when the real-time angle value is in a closing angle range, outputting a door closing signal;
when the real-time angle value is not located in the closing angle interval, acquiring a first distance value, finding an angle value corresponding to the first distance value according to an angle and distance correspondence table, and marking the angle value as a reference angle value;
comparing the reference angle value with a real-time angle value, and when the error between the real-time angle value and the reference angle value is greater than a preset error, obtaining the opening and closing state of the door from the distance and door state comparison table according to the first distance value, and outputting a corresponding signal according to the opening and closing state of the door;
when the error between the real-time angle value and the reference angle value is smaller than or equal to a preset error, outputting a signal for opening the door;
the closing angle interval is greater than or equal to 0 degrees and less than or equal to 3 degrees.
2. The digital gyroscope-based door switch detection system of claim 1, wherein the distance sensor is an infrared distance measurement sensor, the distance sensor being located on the door frame.
3. The digital gyroscope-based door opening and closing detection system of claim 1, wherein the distance sensor is provided at an upper portion of the door frame.
4. The digital gyroscope-based door switch detection system of claim 1, wherein the controller is a single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010307311.8A CN111577059B (en) | 2020-04-17 | 2020-04-17 | Door switch detection system based on digital gyroscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010307311.8A CN111577059B (en) | 2020-04-17 | 2020-04-17 | Door switch detection system based on digital gyroscope |
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| CN111577059A CN111577059A (en) | 2020-08-25 |
| CN111577059B true CN111577059B (en) | 2021-09-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113639789A (en) * | 2021-07-20 | 2021-11-12 | 支付宝(杭州)信息技术有限公司 | System and method for detecting closing of cabinet door |
| CN114320074B (en) * | 2022-01-11 | 2023-07-18 | 东屋世安物联科技(江苏)股份有限公司 | Turning door switch detection and control device, control system and control method |
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