CN212689831U

CN212689831U - Automatic door detection system using low-frequency ultrasonic module

Info

Publication number: CN212689831U
Application number: CN202020117259.5U
Authority: CN
Inventors: 姚璐; 俞玉春; 杨立杰; 赵晓明; 吴尚
Original assignee: Suzhou Etron Technologies Co ltd
Current assignee: Suzhou Etron Technologies Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-03-12
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses an use automatically-controlled door detecting system of low frequency ultrasonic wave module, including the ultrasonic wave module, control circuit, the drive circuit who connect gradually, ultrasonic wave module detects the object, and control circuit makes the automatically-controlled door action according to detecting information, through the motor of drive circuit control automatically-controlled door. The utility model discloses automatically-controlled door detecting system adopts low frequency ultrasonic wave module to replace microwave sensor and detects, can calculate the distance, increases detection method for automatically-controlled door detects more intelligently, reduces the energy consumption, improves the intelligence and the security of automatically-controlled door. The utility model discloses control circuit accepts ultrasonic wave module signal, calculates the distance of testee, judges whether detection area has the object, if the distance is stable for a long time, the object is static in the front of the door promptly, can control the automatically-controlled door and close, waits to detect the distance and changes at the action of control automatically-controlled door, can prevent motor repetitive motion like this to reach energy-conserving purpose.

Description

Automatic door detection system using low-frequency ultrasonic module

Technical Field

The utility model relates to an automatically-controlled door field, in particular to use automatically-controlled door detecting system of low frequency ultrasonic wave module.

Background

With the rapid development of modern level in the current society, the automatic door is widely applied to entrances and exits of large public places such as hotels, airports, shopping centers, banks, office buildings and the like due to the advantages of attractive appearance, convenience in use, building energy conservation and the like. The automatic door mainly uses a microwave sensor for detection, and in recent years, a plurality of efficiency and safety problems are exposed in the process of putting the automatic door into use because the traditional automatic door sensor has the following three defects that 1) the detection content is single, and the requirements of safety, energy conservation and comfort can not be considered at the same time; 2) dead angles exist in the detection range, and pedestrians and objects below a certain height cannot be sensed; 3) the intelligence is low, and the conditions for analyzing and understanding the behaviors of the pedestrians are not provided.

The utility model discloses utilize ultrasonic wave's detection characteristic to replace traditional microwave to detect, be different from the unable static object that detects of microwave, utilize the ultrasonic wave module, can calculate the distance, increase detection method for the automatically-controlled door detects more intelligently, reduces the energy consumption.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the automatic door detection system using the low-frequency ultrasonic module is used for detecting an object in front of the automatic door to control the opening and closing of the automatic door and improve the intelligence and safety of the automatic door.

The technical scheme of the utility model is that:

the automatic door detection system comprises an ultrasonic module, a control circuit and a driving circuit which are sequentially connected, wherein the ultrasonic module detects an object, and the control circuit controls a motor of the automatic door through the driving circuit according to detection information to enable the automatic door to act.

Preferably, the ultrasonic module is disposed above the automatic door.

Preferably, the ultrasonic module includes MCU and operational amplifier circuit, and MCU output low frequency drive signal produces the low frequency ultrasonic wave through operational amplifier circuit, and the object appears in the ultrasonic detection within range, and the ultrasonic wave is bounce-back and is produced the echo, handles echo signal through operational amplifier circuit, judges whether there is the object to driving motor controls automatic door switch.

The utility model has the advantages that:

1. the automatic door detection system of the utility model adopts the low-frequency ultrasonic module to replace the microwave sensor for detection, can calculate the distance and increase the detection method, so that the automatic door detection is more intelligent, the energy consumption is reduced, and the intelligence and the safety of the automatic door are improved;

2. the ultrasonic module of the utility model is arranged above the automatic door, which can increase the effective detection range;

3. the utility model utilizes the attenuation characteristic of ultrasonic wave to reduce the emission frequency and improve the detection range;

4. the utility model discloses control circuit accepts ultrasonic wave module signal, calculates the distance of testee, judges whether detection area has the object, if the distance is stable for a long time, the object is static in the front of the door promptly, can control the automatically-controlled door and close, waits to detect the distance and changes at the action of control automatically-controlled door, can prevent motor repetitive motion like this to reach energy-conserving purpose.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is a schematic diagram of an automatic door inspection system using a low frequency ultrasonic module;

fig. 2 is a schematic view of the installation position of the low frequency ultrasonic module.

Detailed Description

As shown in fig. 1, the utility model discloses an use automatically-controlled door detecting system of low frequency ultrasonic wave module, including the ultrasonic wave module, control circuit, the drive circuit that connect gradually, ultrasonic wave module detects the object, and control circuit passes through the motor of drive circuit control automatically-controlled door according to detecting information, makes the automatically-controlled door action.

As shown in fig. 2, the ultrasonic module is disposed above the automatic door, so that the effective detection range can be increased.

The ultrasonic module comprises an MCU and an operational amplifier circuit, the MCU outputs a low-frequency driving signal, low-frequency ultrasonic waves are generated through the operational amplifier circuit, objects appear in an ultrasonic detection range, the ultrasonic waves are rebounded to generate echo waves, the echo signals are processed through the operational amplifier circuit, whether the objects exist is judged, and therefore the driving motor controls the automatic door to be opened and closed.

The utility model discloses utilize the decay characteristic of ultrasonic, reduce emission frequency, improve detection range.

The control circuit receives signals of the ultrasonic module, calculates the distance of a measured object, judges whether the object exists in a detection area, and can control the automatic door to close if the distance is stable for a long time, namely the object is static in front of the door, and the distance to be detected changes and controls the automatic door to act, so that the motor can be prevented from repeatedly acting, and the aim of saving energy is fulfilled.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An automatic door detection system using a low-frequency ultrasonic module is characterized by comprising the ultrasonic module, a control circuit and a driving circuit which are sequentially connected, wherein the ultrasonic module detects an object, and the control circuit controls a motor of an automatic door through the driving circuit according to detection information to enable the automatic door to act;

the ultrasonic module comprises an MCU and an operational amplifier circuit, the MCU outputs a low-frequency driving signal, low-frequency ultrasonic waves are generated by the operational amplifier circuit, objects appear in an ultrasonic detection range, the ultrasonic waves bounce to generate echoes, the echo signals are processed by the operational amplifier circuit to judge whether the objects exist or not, so that a motor is driven, and an automatic door switch is controlled;

the ultrasonic module is disposed above the automatic door.