WO2017024942A1

WO2017024942A1 - Velometer controlled based on mobile terminal

Info

Publication number: WO2017024942A1
Application number: PCT/CN2016/091890
Authority: WO
Inventors: 谢世亮
Original assignee: 南通永德贸易发展有限公司
Priority date: 2015-08-12
Filing date: 2016-07-27
Publication date: 2017-02-16
Also published as: CN204832506U

Abstract

A velometer controlled based on a mobile terminal, comprising: a mobile terminal with a bluetooth function and a velometer, wherein the velometer comprises: a microwave transceiving module (1), a frequency processing module (2), a computation module (3), a display module (4), a voice module (5) and a bluetooth module (6). By using an intelligent mobile terminal which is relatively popularized currently to control the velometer, the limitations on distance and angle of observation can be removed, thereby realizing long distance control and data observation, and bringing about great convenience to users.

Description

A speedometer based on mobile terminal control

Technical field

The utility model relates to the field of electronic devices, in particular to a speedometer based on mobile terminal control.

Background technique

The current speed measuring instruments mainly include an optical speed measuring instrument and a microwave speed measuring instrument. Both of the speed measuring instruments belong to a relative speed measuring instrument, that is, the speed measuring head can only be used as a reference to measure the speed of the measured object relative to the detecting head, and the principle thereof. Yes: The probe continuously sends signals to the measured object. According to the frequency difference between the two signals and the propagation speed of the signal, the speed of the measured object relative to the probe can be calculated. However, the speed can only be displayed on the display of the speedometer. If the screen is small or the angle of observation is different, the speed on the display will not be visible after moving away from the speedometer, resulting in inconvenience in reading.

Bluetooth is a radio technology that supports short-range communication between devices, enabling wireless information exchange between devices including mobile phones, PDAs, wireless headsets, notebook computers, and related peripherals. Bluetooth technology supports point-to-point and point-to-multipoint communication. It operates in the global 2.4GHz ISM (industrial, scientific, medical) frequency band, with a maximum data rate of up to 3Mbps, and full-duplex transmission using a time division duplex transmission scheme. At present, devices that use Bluetooth technology to communicate have spread throughout the industry.

Currently, smart mobile terminals are widely used, and basically all smart mobile terminals have Bluetooth functions. This brings the possibility of implementation of this application.

Utility model content

It is an object of the present invention to provide a speedometer apparatus based on mobile terminal control that solves one or more of the above prior art.

The utility model provides a speed measuring device based on mobile terminal control, which comprises: a mobile terminal with bluetooth function and a speed measuring device, the speed measuring device comprises:

a microwave transceiver module for transmitting microwaves and recovering microwaves;

a frequency processing module electrically connected to the microwave transceiver module for filtering out the frequency of the amplified microwave;

The operation module is electrically connected to the frequency analysis module, and is configured to calculate the Doppler frequency shift and output speed information by using the detected microwave frequency;

a display module electrically connected to the computing module for displaying a moving speed of the current object;

a voice module, which is electrically connected to the operation module, and is used for broadcasting a voice module for voice information such as speed and system failure;

The Bluetooth module is electrically connected to the computing module and is used for wireless communication with the Bluetooth-enabled mobile terminal.

The utility model provides a speedometer instrument based on mobile terminal control, which uses the currently popular intelligent mobile terminal to control the speedometer, and can get rid of the limitation of the distance and the observation angle, and brings great convenience to the user.

In some embodiments, the microwave transceiver module includes:

a transmitter module for transmitting microwaves;

a filtering module for filtering out the wrong microwave frequency caused by the object blocking the microwave;

A receiver module for receiving returned echoes.

DRAWINGS

Figure 1 is a block diagram of the speedometer of the present invention.

detailed description

The present invention further describes the present invention: a speedometer device based on mobile terminal control, comprising: a mobile terminal with a Bluetooth function and a speedometer, and the mobile terminal in this embodiment is a mobile phone.

As shown in FIG. 1 , the speed detector includes a microwave transceiver module 1, a frequency analysis module 2, an operation module 3, a display module 4, a voice module 5, and a Bluetooth module 6. The frequency processing module 2, the display module 4, the voice module 5, and the Bluetooth module 6 are all electrically connected to the computing module 3. The frequency analyzing module 2 is also electrically connected to the microwave transceiver module 1. The microwave transceiver module 1 includes a transmitter module 11, a filtering module 12, and Receiver module 13.

The transmitter module 11 emits microwaves, the microwaves are folded back to the measured target, the filtering module 12 filters out the wrong microwave frequencies of other objects, the receiver module 13 receives the folded back microwaves, and the frequency processing module 2 processes the folded microwave frequencies, which will be analyzed. The signal is transmitted to the arithmetic module 3, and the arithmetic module 3 is calculated. The speed is transmitted to the display module 4, the display module 4 displays the current speed, and the voice module 5 broadcasts the current speed, and the arithmetic module 3 transmits the speed information to the mobile terminal with Bluetooth function through the Bluetooth module 6.

In addition, through the Bluetooth-enabled smartphone, the APP application is installed on the mobile phone (because the APP involves the software part, which is not detailed here), when the APP application issues an instruction to start the speedometer, the Bluetooth module in the mobile phone transmits the signal. To the Bluetooth module 6 in the speedometer, the Bluetooth module 6 transmits a signal to the arithmetic module 3, and the arithmetic module 3 controls the microwave transceiver module 1 to operate.

Speedometer speed measurement principle: In each measurement process, the transmitter module in the microwave transceiver module emits a continuous microwave signal. When a moving object enters the measurement interval, the reflected microwave is returned to the receiver module, and the signal is processed after the difference frequency processing. The frequency processing module is further input; the frequency processing module further processes the signal by filtering and amplifying, and then sends the signal to the arithmetic module; the computing module calculates the absolute speed of the measured object by the corresponding frequency.

It should be noted that the mobile terminal in the present invention is not only a mobile phone but also a smart digital device such as a tablet computer, and these are all within the protection scope of the present invention.

Claims

A speed transmitter based on mobile terminal control, comprising: a mobile terminal with a Bluetooth function and a speed detector, the speedometer comprising:

a microwave transceiver module (1) for transmitting microwaves and recovering microwaves;

The frequency processing module (2) is electrically connected to the microwave transceiver module (1) for filtering out the clutter and amplifying the received microwave signal;

The operation module (3) is electrically connected to the frequency analysis module (2) for calculating the Doppler frequency shift and outputting the speed information by using the detected microwave frequency;

a display module (4) electrically connected to the operation module (3) for displaying a moving speed of the current object;

a voice module (5) electrically connected to the computing module (3) for reporting current speed and system faults;

The Bluetooth module (6) is electrically connected to the computing module (3) for wirelessly communicating with the Bluetooth-enabled mobile terminal.
The mobile terminal control-based speedometer according to claim 1, wherein the microwave transceiver module (1) comprises:

a transmitter module (11) for transmitting microwaves;

a filtering module (12) for filtering out the wrong microwave frequency caused by the object blocking the microwave;

A receiver module (13) for receiving returned echoes.