Automatic door control system and cold storage door

Abstract

An automatic door control system comprises an automatic door, a control box, a door control motor and a radar assembly. The automatic door is connected with a door control motor, the door control motor is electrically connected with the control box, and the door control motor drives the automatic door to be opened or closed; the radar assembly comprises a laser detection unit and an ultrasonic ranging unit. The laser detection unit and the ultrasonic ranging unit are electrically connected with the control box; the laser detection unit is used for detecting whether a person or an object to pass in front of the automatic door, the ultrasonic ranging unit is used for detecting the vertical distance between the top of the automatic door and the top of the person or the object to pass, or the ultrasonic ranging unit is used for detecting the vertical height of the person or the object to pass. When being applied to a cold storage door, the automatic control device can be flexibly adjusted automatically according to passing requirements of people or objects, is sensitive to trigger and low in false touch rate, and can reduce cold air escape and greatly reduce energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic door control, in particular to an automatic door control system and a cold storage door. Background Art

[0002] Automatic access control systems are mainly divided into infrared sensing type and microwave sensing type. Among them, infrared sensing type is the traditional automatic door control method. Infrared sensing is to receive infrared rays emitted by the human body through pyroelectric elements to trigger the operation of subsequent circuits. Its sensing distance is short and the angle is small. During its operation, people and cars can sense the door opening but cannot distinguish the direction of movement. Microwave sensing type uses the electromagnetic wave characteristics of microwave signals to detect the existence of objects and measure the time and amplitude of reflected signals. By analyzing the time and intensity of reflected signals, the position, shape, size, movement state and other information of the object can be determined. During its operation, people and cars can be sensed separately and directions can be distinguished. However, it is greatly interfered by weather, clutter, etc.

[0003] In the existing cold storage system, the cold storage door adopts the traditional infrared induction type and microwave induction type, which is easy to be accidentally touched and cause the door to be frequently opened, which easily causes the temperature in the cold storage to drop too quickly. In order to make the temperature in the cold storage meet the requirements, the refrigeration unit can only increase the power to cool, resulting in a large increase in energy consumption. Although some laser induction methods reduce false touches, they are all fully open, which cannot reduce the escape of cold air and reduce energy consumption during the frequent opening and closing of the cold storage door. Therefore, the utility model aims to develop an automatic access control system and a cold storage door to better meet actual needs. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an automatic access control system and a cold storage door to solve the shortcomings of the above-mentioned background technology.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] An automatic door control system comprises an automatic door, a control box, a door control motor and a radar assembly; the automatic door is connected to the door control motor, the door control motor is electrically connected to the control box, and the door control motor drives the automatic door to open or close; the radar assembly comprises a laser detection unit and an ultrasonic distance measuring unit; both the laser detection unit and the ultrasonic distance measuring unit are electrically connected to the control box; the laser detection unit is used to detect whether there is a person or object to be passed in front of the automatic door, the ultrasonic distance measuring unit is used to detect the vertical distance between the top of the automatic door and the top of the person or object to be passed, or the ultrasonic distance measuring unit is used to detect the vertical height of the person or object to be passed.

[0007] In the utility model, the laser detection unit is used to detect whether there is a person or object in front of the automatic door. When the laser detection radar detects that there is a person or object in front of the automatic door, the automatic door is half-opened; the ultrasonic ranging unit is used to detect the vertical distance between the top of the automatic door and the top of the person or object. When the vertical distance detected by the ultrasonic ranging unit is greater than a preset distance, the automatic door remains half-open. When the vertical distance detected by the ultrasonic ranging unit is less than or equal to the preset distance, the automatic door is fully opened.

[0008] In the utility model, the radar component is arranged above or on the side of the automatic door.

[0009] In the utility model, the laser detection unit is a single-line laser detection unit, which includes a laser transmitter, a laser receiver, a first signal processing module and a central processing unit; the laser transmitter and the laser receiver are both connected to the first signal processing module, the first signal processing module is connected to the central processing unit, and the central processing unit is electrically connected to the control box.

[0010] In the utility model, the ultrasonic ranging unit includes an ultrasonic transmitter, an ultrasonic receiver and a second signal processing module; the ultrasonic transmitter and the ultrasonic receiver are both connected to the second signal processing module, and the second signal processing module is connected to the central processing unit.

[0011] In the utility model, the automatic door is a rolling door.

[0012] In the utility model, the automatic door is provided with a matching limiting device.

[0013] A cold storage door comprises any automatic door control system as described above.

[0014] Beneficial effect: The automatic door access control system described in the utility model is provided with an integrated radar component, wherein the laser detection unit is used to detect whether there is a person or object to be passed in front of the automatic door, which is not prone to false touches and is highly sensitive as a half-open door trigger. In combination with ultrasonic ranging as an auxiliary measurement, the vertical distance between the top of the automatic door and the top of the person or object to be passed, or the vertical height of the person or object to be passed, determines whether the door is fully open, thereby realizing the opening and closing amplitude of the automatic door according to actual needs, and the actual application is more flexible. When applied to the cold storage door, it can greatly reduce the escape of cold air and reduce energy consumption.

[0015] The automatic door access control system of the utility model has sensitive triggering, low false triggering rate, and prevents the occurrence of accidental lowering accidents of the automatic door through the limit device, and has good practical promotion and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.

[0017] Figure 2 It is a side structural schematic diagram of a preferred embodiment of the utility model.

[0018] Figure 3 This is a circuit connection diagram of an automatic door control system in a preferred embodiment of the utility model.

[0019] Among them: 1. Door frame; 2. Warehouse board; 3. Automatic door; 4. Radar component; 5. Control box; 6. Door control motor. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0021] See also Figure 1 , Figure 2 and Figure 3 As shown, an automatic door control system includes an automatic door 3, a control box 5, a door control motor 6, and a radar assembly 4. The automatic door 3 is preferably a rolling door. In some other embodiments, the automatic door 3 can also be a folding door, etc. The automatic door 3 opens from bottom to bottom.

[0022] The automatic door 3 is connected to a door-controlled motor 6 , which is electrically connected to a control box 5 . Under the control of the control box 5 , the door-controlled motor 6 drives the automatic door 3 to open or close, or to open to a half-open state.

[0023] The radar assembly 4 includes a laser detection unit and an ultrasonic ranging unit; both the laser detection unit and the ultrasonic ranging unit are electrically connected to the control box 5; wherein the laser detection unit is used to detect whether there is a person or object to pass in front of the automatic door 3, and the ultrasonic ranging unit is used to detect the vertical distance between the top of the automatic door 3 and the top of the person or object to pass, or the ultrasonic ranging unit is used to detect the vertical height of the person or object to pass.

[0024] In this preferred embodiment, the laser detection unit is used to detect whether there is a person or object in front of the automatic door 3. When the laser detection radar detects that there is a person or object in front of the automatic door 3, the automatic door 3 is half open; the ultrasonic ranging unit is used to detect the vertical distance between the top of the automatic door 3 and the top of the person or object. When the vertical distance detected by the ultrasonic ranging unit is greater than the preset distance, the automatic door 3 remains half open. When the vertical distance detected by the ultrasonic ranging unit is less than or equal to the preset distance, the automatic door 3 is fully open.

[0025] For details, see Figure 3As shown, the radar assembly 4 is arranged above the automatic door 3. The laser detection unit is a single-line laser detection unit, which includes a laser transmitter, a laser receiver, a first signal processing module and a central processing unit; the laser transmitter and the laser receiver are both connected to the first signal processing module, the first signal processing module is connected to the central processing unit, and the central processing unit is electrically connected to the control box 5. The ultrasonic ranging unit includes an ultrasonic transmitter, an ultrasonic receiver and a second signal processing module; the ultrasonic transmitter and the ultrasonic receiver are both connected to the second signal processing module, and the second signal processing module is connected to the central processing unit. The central processing unit is connected to the controller, and the central processing unit further determines whether the controller starts the operation of the door control motor 6 according to the information of the first signal processing module and the second signal processing module. In this embodiment, the laser detection unit is a single-line laser detection unit, which is used as a door opening trigger. When a person or object passes within the preset value range, the automatic door 3 is quickly half-opened, the trigger is sensitive, and the response is rapid. The ultrasonic ranging unit is used to further assist the measurement. When the vertical distance detected by the ultrasonic ranging unit is less than or equal to the preset distance, the automatic door 3 is further fully opened.

[0026] The automatic door control system described in this embodiment is applied to cold storage doors, such as Figure 1 As shown, the cold storage door includes a door frame 1, a storage panel 2 is arranged on the top of the door frame 1, and the automatic door 3 is a rolling door, which is adapted to the door frame 1. The automatic door control system can fully ensure the passage of people, objects and vehicles, and can be flexibly adjusted according to actual conditions, which can well reduce the escape of cold air, reduce the work of refrigeration components, and greatly reduce energy consumption.

[0027] As a further improvement of the present utility model, the automatic door 3 is provided with a matching limit device, which is arranged on the door frame 1, and corresponds to the position of the automatic door 3 when it is half-open. In some preferred embodiments, the limit device includes a limit rod and a push-pull cylinder, and the two limit devices are arranged relatively. When the automatic door 3 is in a half-open state, the limit rod extends to support the bottom of the automatic door 3, and when the automatic door 3 needs to rise or fall, the push-pull rod can be retracted under the drive of the push-pull cylinder.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0031] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. An automatic door control system, characterized in that: It includes an automatic door, a control box, a door-controlled motor, and a radar component; the automatic door is connected to the door-controlled motor, the door-controlled motor is electrically connected to the control box, and the door-controlled motor drives the automatic door to open or close; the radar component includes a laser detection unit and an ultrasonic ranging unit; the laser detection unit and the ultrasonic ranging unit are both electrically connected to the control box; the laser detection unit is used to detect whether there is a person or object to be passed in front of the automatic door, the ultrasonic ranging unit is used to detect the vertical distance between the top of the automatic door and the top of the person or object to be passed, or the ultrasonic ranging unit is used to detect the vertical height of the person or object to be passed.

2. The automatic door control system according to claim 1, characterized in that: The laser detection unit is used to detect whether there is a person or object in front of the automatic door. When the laser detection radar detects that there is a person or object in front of the automatic door, the automatic door is half open; the ultrasonic ranging unit is used to detect the vertical distance between the top of the automatic door and the top of the person or object. When the vertical distance detected by the ultrasonic ranging unit is greater than a preset distance, the automatic door remains half open. When the vertical distance detected by the ultrasonic ranging unit is less than or equal to the preset distance, the automatic door is fully open.

3. The automatic door control system according to claim 2, characterized in that: The radar component is arranged above or on the side of the automatic door.

4. The automatic door control system according to claim 1, characterized in that: The laser detection unit is a single-line laser detection unit, which includes a laser transmitter, a laser receiver, a first signal processing module and a central processing unit; the laser transmitter and the laser receiver are both connected to the signal processing module, the signal processing module is connected to the central processing unit, and the central processing unit is electrically connected to the control box.

5. The automatic door control system according to claim 4, characterized in that: The ultrasonic distance measuring unit comprises an ultrasonic transmitter, an ultrasonic receiver and a second signal processing module; the ultrasonic transmitter and the ultrasonic receiver are both connected to the second signal processing module, and the second signal processing module is connected to the central processing unit.

6. The automatic door control system according to claim 1, characterized in that: The automatic door is a rolling door.

7. The automatic door control system according to claim 1, characterized in that: The automatic door is provided with a matching limiting device.

8. A cold storage door, characterized in that: An automatic door control system as described in any one of claims 1 to 7 is adopted.

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