CN205620550U - A combined hand-held obstacle alarm mobile phone bracket - Google Patents

Abstract

The utility model discloses a combination hand -held type meets barrier alarm mobile phone support, its major structure include cell phone stand 3 and cell phone stand right side cell phone stand 3 on the left of screens under the handheld portion of cell phone stand backup pad, cell phone stand, alarm component, the handheld bracket, the last screens of handheld bracket, handheld bracket right side screens, handheld bracket left side screens, ultrasonic transmitter, ultrasonic wave receiver, cell phone stand left side infrared diode, cell phone stand right side infrared diode, the cell phone stand, screwed connection or glued is passed through with the inside handheld portion of cell phone stand that is hollow structure to the cell phone stand backup pad, and the interior hollow structure of the handheld M of portion of cell phone stand is equipped with alarm component. The singlechip carries out the interconnection through WIFI linking module, bluetooth linking module or USB interface with WIFI, bluetooth or USB mode and cell -phone, and through sending out the police dispatch breath of notifying with the mode of image or sound on cell -phone screen or the cell -phone loudspeaker, the emergence of accident is avoided to suggestion user attention surrounding environment when having the barrier in alarming range.

Description

A combined hand-held obstacle alarm mobile phone holder

Technical field:

The utility model belongs to the technical field of mobile phone accessories, and relates to a combined hand-held obstacle warning mobile phone support. An infrared obstacle warning device and an ultrasonic wave obstacle warning device are arranged on the main body of the mobile phone support to remind users to pay attention to the surrounding environment and avoid accidents.

Background technique:

With the popularity of mobile phones, the enhancement of mobile Internet functions and the reduction of corresponding costs, the functions of smart phones have been extended from the initial telecommunication calls to all aspects of life such as transmitting images and sound information, watching videos and video calls, etc. People use mobile phones The frequency is getting higher and higher, and people's lives are inseparable from mobile phones. In order to improve the comfort during the use of mobile phones, such as alleviating arm fatigue, easy to carry, flexible adjustment of viewing angle, height and distance, and adapting to different objects, mobile phone holders came into being. pregnancy. Most of the mobile phone holders currently on the market or applying for patents start from the stand function and the use object. The structural design is generally for better supporting the mobile phone, or adjusting the distance, angle and height of the supported mobile phone, as disclosed in Chinese patent CN200810112638.9 A column-shaped mobile phone stand that can be stably supported on the desktop can be slidably set in the slide rail of the mobile phone, and can be stored in the slide rail when not in use. It occupies a small space and is easy to store and carry. It is convenient and flexible according to the needs of use. Adjust the support angle; Chinese patent CN201520757680.1 discloses a smartphone handheld support frame with a magnifying glass. Experience the enhancement of the mobile phone to achieve better functions; Chinese patent CN201420612246.X discloses a mobile phone bracket, a telescopic rod is set in the rotating plate of the bracket, and the way the mobile phone bracket clamps the mobile phone is changed according to the stretching or shortening of the telescopic rod. Hold or vertically clamp, and set an automatic rotating adjustment ring to adjust the support angle of the mobile phone holder. With the widespread use of mobile phones, the ranks of "head-down people" on mobile phones are gradually growing, and more and more accidents are caused by looking at mobile phones and ignoring the dangers of the surrounding environment. The search found that there is no ultrasonic hand-held mobile phone holder that provides obstacle warning function for the increasingly large mobile phone "head-down group" at present.

Invention content:

The purpose of the utility model is to overcome the shortcomings of the prior art and to seek a combined hand-held obstacle warning mobile phone bracket. In addition to the normal function of holding the mobile phone, the mobile phone bracket uses an infrared obstacle device and an ultrasonic obstacle alarm device. Send an alarm message to effectively avoid various accidents caused by watching mobile phones.

In order to achieve the above object, the utility model relates to a combined hand-held obstacle alarm mobile phone bracket main structure comprising a mobile phone bracket support plate, a mobile phone bracket handheld part, an alarm component, a lower clamping position of the handheld bracket, an upper clamping position of the handheld bracket, The right card position of the handheld bracket, the left card position of the handheld bracket, the ultrasonic transmitter, the ultrasonic receiver, the infrared diode on the left side of the mobile phone bracket, the infrared diode on the right side of the mobile phone bracket, the photodiode on the left side of the mobile phone bracket and the photodiode on the right side of the mobile phone bracket; The support plate of the mobile phone holder is connected with the hand-held part of the mobile phone holder with a hollow structure through screws or cemented; The left card position of the hand-held bracket and the right card position of the hand-held bracket, the support plate of the mobile phone bracket and the upper card position of the hand-held bracket, the lower card position of the hand-held bracket, the left card position of the hand-held bracket and the right card position of the hand-held bracket are all made of elastic plastic. An ultrasonic transmitter and an ultrasonic receiver are installed on the card position on the hand-held bracket; the infrared diode on the left side of the mobile phone bracket and the photosensitive diode on the left side of the mobile phone bracket are installed on the left card position of the hand-held bracket, and the infrared diode on the right side of the mobile phone bracket is connected to the The photosensitive diode on the right side of the mobile phone support is installed on the right card position of the hand-held support, and the hollow structure in the hand-held part M of the mobile phone support is provided with an alarm assembly.

The alarm assembly described in the utility model is composed of an integrated single-chip microcomputer and a frequency signal drive amplifier circuit, an ultrasonic receiving signal amplifier, a temperature sensor, an infrared transmitting drive circuit, an infrared receiving drive circuit, a WIFI connection module, a Bluetooth connection module and a USB interface; The infrared diode on the left side of the mobile phone holder and the infrared diode on the right side of the mobile phone holder are respectively electrically connected to the infrared transmitting drive circuit; The ultrasonic transmitter is electrically connected, and the ultrasonic receiver is electrically connected to the ultrasonic receiving signal amplifier.

The default alarm distance on the left side and the right side of the combined hand-held obstacle alarm mobile phone bracket described in the utility model is 0.3m, and the default alarm distance of the head is 3m, and the default alarm distance can also be customized and adjusted through the mobile phone screen; The WIFI connection module, the Bluetooth connection module or the USB interface communicate with the mobile phone through WIFI, Bluetooth or USB. When there is an obstacle within the alarm range, the alarm information will be sent out in the form of images or/and sounds through the mobile phone screen or the mobile phone speaker.

When the combined hand-held obstacle warning mobile phone bracket of the utility model encounters obstacles on the left and right sides, the integrated single-chip microcomputer drives the infrared diode of the emitting head to emit infrared light through the infrared emission drive circuit, and when the infrared light encounters an obstacle, it is reflected back and reflected. The returned infrared light is received by the photodiode of the infrared receiving head driven by the infrared receiving drive circuit, and is converted into a measurable voltage value U through voltage conversion. By U=k/S, the k value is an inverse proportional coefficient, which can be The distance between the obstacle and the user of the mobile phone is obtained, and when the distance is less than the alarm distance, an alarm message is sent on the screen of the mobile phone in the form of an image or/and sound through the speaker of the mobile phone.

When the combined hand-held obstacle warning mobile phone bracket described in the utility model encounters an obstacle in front, the integrated single-chip microcomputer drives the amplifying circuit through the frequency signal to control the ultrasonic transmitter to emit ultrasonic waves to the front of the mobile phone bracket, and starts timing at the same time as the emission time. When it travels in the air, it will return immediately when it encounters an obstacle. The ultrasonic receiver will stop timing immediately when it receives the reflected wave. The reflected wave will be sent to the integrated microcontroller through the ultrasonic receiving signal amplifier. The time difference △t between the transmitted and received echoes recorded by the timer in the microcontroller can calculate the distance S=v×△t/2 between the transmitting point and the obstacle; the ambient temperature T is measured by the ambient temperature sensor, and the ultrasonic propagation The speed can be obtained by v=331.45+0.607T to realize ambient temperature compensation, and the measured distance is calculated from this. When the distance is less than the alarm distance set by the alarm mode, that is, when the obstacle is within the alarm range, it will be displayed on the screen of the mobile phone as an image Or/and send out the alarm message in a voice mode through the speaker of the mobile phone.

Compared with the prior art, the utility model has the following advantages: First, the mobile phone bracket integrates an ultrasonic obstacle warning device and an infrared pre-obstacle warning device, which can be connected to the mobile phone's electrical information through WIFI, Bluetooth or USB, and can be connected through the mobile phone screen. Make custom settings and set the distance measurement range by default. When there is an obstacle within the set distance, an alarm message will be sent out in the form of an image or/and sound on the mobile phone screen to improve safety; the second is to use infrared light-emitting diodes, which are simple in structure and easy to miniaturize , and the cost is low, the infrared modulation is simple, multi-channel control can be realized by means of the modulation signal coding, the infrared cannot pass through obstacles, and there will be no misoperation such as signal crosstalk, the power consumption is small, the reflection speed is fast, and there is no pollution to the environment. There is no damage to objects, strong anti-interference ability, and reliable work; the third is to use ambient temperature compensation to improve the ultrasonic ranging accuracy of the head of the mobile phone bracket and improve safety; the fourth is to effectively use the original mobile phone screen, speakers and other components in the mobile phone , reducing costs.

Description of drawings:

Fig. 1 is a schematic block diagram of the working principle of the combined hand-held obstacle warning mobile phone support related to the utility model.

Fig. 2 is a side view of the main body structure of the combined hand-held obstacle warning mobile phone support related to the utility model.

Fig. 3 is a front view of the main body structure of the combined hand-held obstacle warning mobile phone support related to the utility model.

Fig. 4 is a rear view of the main structure of the combined hand-held obstacle warning mobile phone bracket related to the utility model.

detailed description:

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described.

Example:

The main structure of the combined hand-held obstacle alarm mobile phone bracket involved in this embodiment includes a mobile phone bracket support plate L, a mobile phone bracket hand-held part M, an alarm component N, a clamping position O under the handheld bracket, a clamping position Q on the handheld bracket, and a hand-held bracket. The right card position P of the bracket, the left card position R of the hand-held bracket, the ultrasonic transmitter B, the ultrasonic receiver C, the infrared diode 51 on the left side of the mobile phone bracket, the infrared diode 52 on the right side of the mobile phone bracket, the photodiode 71 on the left side of the mobile phone bracket, and the mobile phone bracket The right photodiode 72; the mobile phone bracket support plate L and the mobile phone bracket handheld part M with a hollow structure inside are connected by screws or cemented; the upper, lower, left, and right sides of the mobile phone bracket support plate L are respectively provided with a card position on the hand-held bracket Q, the lower card position O of the hand-held bracket, the left card position R of the hand-held bracket and the right card position P of the hand-held bracket, the support plate L of the mobile phone bracket and the upper card position Q of the hand-held bracket, the lower card position O of the hand-held bracket, the hand-held The left card position R of the bracket and the right card position P of the hand-held bracket are integrally formed by injection molding of elastic plastic, and the card position Q on the hand-held bracket is equipped with an ultrasonic transmitter B and an ultrasonic receiver C; The photodiode 71 on the left side of the bracket is installed on the left card position R of the hand-held bracket, the infrared diode 52 on the right side of the mobile phone bracket and the photodiode 72 on the right side of the mobile phone bracket are installed on the right card position P of the hand-held bracket, and the hand-held part M of the mobile phone bracket is hollow The structure is provided with an alarm component N.

The alarm component N described in this embodiment is connected with the frequency signal driving amplifier circuit A, ultrasonic receiving signal amplifier D, temperature sensor 9, infrared transmitting driving circuit 4, infrared receiving driving circuit 6, WIFI connection module E, and Bluetooth respectively by the integrated single-chip microcomputer 1. The module F is electrically connected with the USB interface G; the infrared diode 51 on the left side of the mobile phone bracket and the infrared diode 52 on the right side of the mobile phone bracket are electrically connected to the infrared emission drive circuit 4 respectively, and the photodiode 71 on the left side of the mobile phone bracket and the photodiode 72 on the right side of the mobile phone bracket They are respectively electrically connected to the infrared receiving drive circuit 6, the frequency signal driving amplifying circuit A is electrically connected to the ultrasonic transmitter B, and the ultrasonic receiver C is electrically connected to the ultrasonic receiving signal amplifier D.

The default alarm distance on the left side and the right side of the combined hand-held obstacle alarm mobile phone bracket described in this embodiment is 0.3m, and the default alarm distance on the head is 3m, and the default alarm distance can also be adjusted by the mobile phone screen 2; 1 Through the WIFI connection module E, the Bluetooth connection module F or the USB interface G, the information is interconnected with the mobile phone in the form of WIFI, Bluetooth or USB. When there is an obstacle within the alarm range, the image or/and Sound the alarm message.

When the left side of the combined hand-held obstacle warning mobile phone bracket described in this embodiment encounters an obstacle 31 on the left side, the single-chip microcomputer 1 drives the infrared diode 51 on the left side of the mobile phone bracket of the transmitting head through the infrared emission drive circuit 4 to emit infrared light. After encountering the obstacle 31 on the left side of the mobile phone bracket, the reflected infrared light is received by the photodiode 71 on the left side of the mobile phone bracket driven by the infrared receiving drive circuit 6, and converted into measurable by voltage conversion. The voltage value U, because the intensity of infrared light will increase as the distance S decreases, the voltage value U converted by the infrared receiving circuit will increase accordingly, and because the voltage U is inversely proportional to the distance S, U=k/S, k is Inverse proportional coefficient, by calculating the converted voltage, the distance between the mobile phone user and the obstacle 31 on the left side of the mobile phone support can be known. Audible alarm messages for increased safety.

When the right side of the combined hand-held obstacle warning mobile phone bracket described in this embodiment encounters the right obstacle 32, the single-chip microcomputer 1 drives the infrared diode 52 on the right side of the mobile phone bracket of the emitter to emit infrared light through the infrared emission drive circuit 4, and when the infrared light After encountering the obstacle 32 on the right side of the mobile phone bracket, the reflected infrared light is received by the photodiode 72 on the right side of the mobile phone bracket driving the infrared receiving head by the infrared receiving drive circuit 6, and converted into measurable by voltage conversion The voltage value, because the intensity of infrared light will increase as the distance decreases, and the voltage value converted by the infrared receiving circuit will increase accordingly. And because the voltage is proportional to the distance, by the calculation of the converted voltage, the distance between the mobile phone user and the obstacle 32 on the right side of the mobile phone support can be known. The alarm information is sounded through the mobile phone speaker 8 to improve safety.

When an obstacle 33 is encountered in front of the combined hand-held obstacle warning mobile phone support described in this embodiment, the integrated single-chip microcomputer 1 outputs 10 pulse trains with a pulse width of 250 μs and 40 kHz through an external pin to drive the amplifying circuit A through a frequency signal. The push-pull method is added to the ultrasonic transmitter B to emit ultrasonic waves, and start timing at the same time as the emission time. When the ultrasonic waves travel in the air and hit the obstacle 33 in front of the mobile phone bracket, they will return immediately. When the ultrasonic receiver C receives the reflected waves Immediately stop the timer. The propagation speed of ultrasonic waves in the air is v, and according to the time difference Δt between the transmitted and received echoes recorded by the timer in the single-chip microcomputer 1, the distance S=v×Δt between the transmitting point and the obstacle 33 in front of the mobile phone can be calculated t/2; the ambient temperature T is measured by the temperature sensor 9, and the ultrasonic propagation speed can be obtained by v=331.45+0.607T, so as to realize the ambient temperature compensation. The measured distance is thus calculated, and when the distance is less than the alarm distance, an alarm message is sent on the screen 2 of the mobile phone with an image or/and by sound through the horn 8 of the mobile phone, so as to improve safety.

Claims (2)

1. A combined hand-held obstacle warning mobile phone bracket, characterized in that its main structure includes a mobile phone bracket support plate, a mobile phone bracket handheld part, an alarm assembly, a clamping position under the handheld bracket, a clamping position on the handheld bracket, and a handheld bracket Right card position, left card position of handheld bracket, ultrasonic transmitter, ultrasonic receiver, infrared diode on the left side of the mobile phone bracket, infrared diode on the right side of the mobile phone bracket, photodiode on the left side of the mobile phone bracket and photodiode on the right side of the mobile phone bracket; mobile phone bracket support The board and the mobile phone holder with a hollow structure inside are connected or cemented by screws; the upper, lower, left, and right sides of the mobile phone holder support board are respectively provided with the upper card position of the hand-held bracket, the lower card position of the hand-held bracket, and the left side of the hand-held bracket. The card position and the right card position of the handheld bracket, the support plate of the mobile phone bracket and the upper card position of the handheld bracket, the lower card position of the handheld bracket, the left card position of the handheld bracket and the right card position of the handheld bracket are made of elastic plastic. The ultrasonic transmitter and ultrasonic receiver are installed on the card position on the hand-held bracket; The side photosensitive diode is installed on the right card position of the hand-held bracket, and the hollow structure in the hand-held part of the mobile phone bracket is provided with an alarm component. 2. combined hand-held obstacle warning mobile phone support according to claim 1, it is characterized in that its described alarm assembly is respectively connected with frequency signal drive amplifying circuit, ultrasonic wave receiving signal amplifier, temperature sensor, infrared emission drive circuit, Infrared receiving drive circuit, WIFI connection module, Bluetooth connection module and USB interface are electrically connected; the infrared diode on the left side of the mobile phone holder and the infrared diode on the right side of the mobile phone holder are respectively electrically connected to the infrared emission drive circuit, and the photosensitive diode on the left side of the mobile phone holder is connected to the mobile phone holder The right photosensitive diode is electrically connected with the infrared receiving driving circuit, the frequency signal driving amplifying circuit is electrically connected with the ultrasonic transmitter, and the ultrasonic receiver is electrically connected with the ultrasonic receiving signal amplifier.